Zum Inhalt

Medical cannabinoids: a pharmacology-based systematic review and meta-analysis for all relevant medical indications

  • Open Access
  • 01.12.2022
  • Review
Erschienen in:

Abstract

Background

Medical cannabinoids differ in their pharmacology and may have different treatment effects. We aimed to conduct a pharmacology-based systematic review (SR) and meta-analyses of medical cannabinoids for efficacy, retention and adverse events.

Methods

We systematically reviewed (registered at PROSPERO: CRD42021229932) eight databases for randomized controlled trials (RCTs) of dronabinol, nabilone, cannabidiol and nabiximols for chronic pain, spasticity, nausea /vomiting, appetite, ALS, irritable bowel syndrome, MS, Chorea Huntington, epilepsy, dystonia, Parkinsonism, glaucoma, ADHD, anorexia nervosa, anxiety, dementia, depression, schizophrenia, PTSD, sleeping disorders, SUD and Tourette. Main outcomes and measures included patient-relevant/disease-specific outcomes, retention and adverse events. Data were calculated as standardized mean difference (SMD) and ORs with confidence intervals (CI) via random effects. Evidence quality was assessed by the Cochrane Risk of Bias and GRADE tools.

Results

In total, 152 RCTs (12,123 participants) were analysed according to the type of the cannabinoid, outcome and comparator used, resulting in 84 comparisons. Significant therapeutic effects of medical cannabinoids show a large variability in the grade of evidence that depends on the type of cannabinoid. CBD has a significant therapeutic effect for epilepsy (SMD − 0.5[CI − 0.62, − 0.38] high grade) and Parkinsonism (− 0.41[CI − 0.75, − 0.08] moderate grade). There is moderate evidence for dronabinol for chronic pain (− 0.31[CI − 0.46, − 0.15]), appetite (− 0.51[CI − 0.87, − 0.15]) and Tourette (− 1.01[CI − 1.58, − 0.44]) and moderate evidence for nabiximols on chronic pain (− 0.25[− 0.37, − 0.14]), spasticity (− 0.36[CI − 0.54, − 0.19]), sleep (− 0.24[CI − 0.35, − 0.14]) and SUDs (− 0.48[CI − 0.92, − 0.04]). All other significant therapeutic effects have either low, very low, or even no grade of evidence. Cannabinoids produce different adverse events, and there is low to moderate grade of evidence for this conclusion depending on the type of cannabinoid.

Conclusions

Cannabinoids are effective therapeutics for several medical indications if their specific pharmacological properties are considered. We suggest that future systematic studies in the cannabinoid field should be based upon their specific pharmacology.

Supplementary Information

The online version contains supplementary material available at https://doi.org/10.1186/s12916-022-02459-1.

Publisher’s Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
ADHD
Attention deficit and hyperactivity disorder
AIDS
Acquired immunodeficiency syndrome
ALS
Amyotrophic lateral sclerosis
CB1
Cannabinoid receptor type 1
CB2
Cannabinoid receptor type 2
CBD
Cannabidiol
CI
Confidence interval
HIV
Human immunodeficiency virus
MeSH
Medical Subject Heading
OR
Odds ratio
PANNS
Psychiatric Assessments Psychotic symptoms
PICO
Population, Intervention, Comparator and Outcome
PTSD
Post-traumatic stress disorder
RCT
Randomized controlled trial
SE
Standard error
SMD
Standardized mean difference
SR
Systematic review
SUD
Substance use disorder
THC
( −)-trans9-Tetrahydrocannabinol

Background

There is a worldwide growing interest and investments in using medical cannabinoids for the treatment of numerous diseases. Furthermore, in 2020, the United Nations (UN) finally recognized the medical value of cannabinoids and removed cannabis from Schedule IV of the 1961 Single Convention on Narcotic Drugs. This allows, in a less restricted manner, the use of medical cannabinoids. It is therefore of critical importance to thoroughly review the grade of evidence of the effectiveness of medical cannabinoids to inform policy and clinical decisions.
Previous systematic reviews have been limited in their coverage of all relevant diseases, but most importantly primarily ignored the fact that medical cannabinoid products—a term that encompasses all plant-derived and synthetic derivatives—differ in their pharmacology [15]. The synthetic cannabinoids dronabinol, which is ( −)-trans9-tetrahydrocannabinol (THC) (Marinol® and Syndros®), and nabilone—a synthetic cannabinoid with structural similarities to THC (Cesamet®), are partial agonists at the cannabinoid receptor 1 (CB1) and with somehow lower affinity at CB2 receptors [6]. Both cannabinoids have indications as appetite stimulants, antiemetics, cannabis addiction, sleep apnea and analgesics and are approved by the FDA for HIV/AIDS-induced loss of appetite and chemotherapy-induced nausea and vomiting. Cannabidiol (CBD; Epidolex®) acts as a negative allosteric modulator at CB1 receptors [7] and also acts at several other receptors, such as CB2 receptors, serotonin 1A receptors, opioid receptors and several ligand-gated ion channels [8]; it represents the only CBD formulation approved by both USA and Europe for the treatment of seizures associated with Dravet syndrome, Lennox-Gastaut syndrome or tuberous sclerosis complex. Nabiximols, a cannabis-derived extract that contains equal quantities of THC and CBD (Sativex®), was approved in 2010 in the UK for symptoms associated to MS, and exported to more than 28 countries from Asia, Africa, the Middle East, Europe (Spain, Czech Republic, Germany, Denmark, Sweden, Italy, Austria, France, Poland) and Canada. Moreover, plant-derived medical cannabis contains almost 150 phytocannabinoids, though most of them have neither been isolated nor pharmacologically characterized [9]. THC and CBD can vary largely in concentrations across different medical cannabis products and can thereby differ in their pharmacological properties. Therefore, a systematic review (SR) that does not consider the different pharmacological properties of medical cannabinoids can be misleading.
The aim of this SR and meta-analysis is to examine possible therapeutic differences for medical cannabinoids in all relevant medical conditions.

Results

Our 32 searches identified 6308 abstracts. Figure 1 shows a flow diagram depicting our selection procedure for the SR and meta-analysis resulting in 53 (dronabinol), 35 (nabilone), 27 (CBD) and 37 (nabiximols) selected RCTs (see Additional file 2). The list of indications by cannabinoid and characteristics of the studies are shown in Tables 1 and 2 and the full description is presented in Additional file 2: Tables S2-5 [10160]. The summary of findings from the 152 RCTs analysed resulting in 84 comparisons (23 outcomes, 12,123 participants) is shown in Table 3 and the GRADE summary in Fig. 2. Low risk of bias was judged in 26, 6, 26 and 19% and high risk of bias was found in 5, 9, 1 and 2 studies of the dronabinol, nabilone, CBD and nabiximols trials, respectively (Additional file 3: Figs. S1-8, for references see Tables S2-5). The complete risk of bias assessment for each RCT can be found in Additional file 3: Table S6 (for references see Tables S2-5).
Fig. 1
PRISMA flowchart of the studies
Bild vergrößern
Table 1
List of indications by cannabinoid
Indication
Dronabinol
Nabilone
CBD
Nabiximols
Chronic pain
x
x
x
x
Spasticity
x
x
 
x
Nausea/appetite
x
x
x
x
Amyotrophic lateral sclerosis
x
  
x
Chorea Huntington
 
x
x
x
Dystonia
x
x
 
x
Epilepsy
  
x
 
Glaucoma
x
  
x
Irritable bowel disease
x
   
Multiple sclerosis
x
  
x
Parkinson
 
x
x
 
ADHD
   
x
Anorexia nervosa
x
   
Anxiety
x
x
x
x
Dementia
x
x
  
Depression
x
x
x
x
PTSD
x
x
  
Schizophrenia/psychosis
x
 
x
 
Sleep
x
x
x
x
Substance abuse
x
x
x
x
Tourette
x
   
Retention
x
x
x
x
Adverse events
x
x
x
x
Table 2
Characteristics of included studies
Intervention
Indication
No. of studies
Parallel/crossover
Maximum dose
Comparator
Treatment length (weeks)
Dronabinol
Chronic pain
16
9/7
8–129.6 mg. Most common: 2.5–15 mg (n = 11)
Placebo
Acute to 156. Most common: acute (n = 5)
1
0/1
20 mg
Active
8
Spasticity
6
4/2
2.5–60 mg
Placebo
 < 1 week to 144. Most common: 4 (n = 2)
Nausea, vomiting, loss of appetite
14
6/8
5–129.6 mg. Most common: 5–20 mg (n = 12)
Placebo
Acute to 6. Most common: 1–5 days (n = 8)
6
3/3
5–100 mg. Most common: 5–10 (n = 3)
Active
Acute to 9.8. Most common: acute (n = 4)
ALS
1
0/1
10 mg
Placebo
2
Dystonia
1
0/1
15 mg
Placebo
8
Glaucoma
1
0/1
5 mg
Placebo
Acute
IBS
2
1/1
2.5–10 mg
Placebo
Acute
MS
3
3/0
25–8 mg
Placebo
14 (n = 2), 156 (n = 1)
Anorexia Nervosa
1
0/1
5 mg
Placebo
4
1
0/1
30 mg
Active
2
Anxiety
8
3/5
5–30 mg. Most common: 10 mg (n = 6)
Placebo
Acute to 7.3. Most common: acute (n = 6)
2
1/1
30–50 mg
Active
Acute to 6
Depression
8
4/4
5–30 mg. Most common: 5–10 mg (n = 7)
Placebo
 < 1 week to 156. Most common: less than 1 week (n = 4)
2
1/1
30–50 mg
Active
Acute and 6
Dementia
3
1/2
1.5–5 mg
Placebo
1 to 6
PTSD
1
1/0
7.5 mg
Placebo
Acute
Psychosis/schizophrenia
1
0/1
2.5–5 mg
Placebo
Acute
Sleep
8
4/4
2.5–129.6 mg. Most common: 10 mg (n = 3), 129.6 mg (n = 2)
Placebo
 < 1 week to 14. Most common: less than 1 week to 2 (n = 5)
2
1/1
30 mg
Active
2 and 6
SUDs
4
1/3
5–40 mg
Placebo
Acute (n = 2), < 1 week and 8
1
1/0
30 mg
Active
6
Tourette
2
1/1
5–10 mg
Placebo
Acute and 6
Nabilone
Chronic pain
9
6/3
0.25–4 mg. Most common: 2 mg (n = 5)
Placebo
4 to 9. Most common: 4 (n = 4)
3
0/3
0.5–2 mg
Active
2 to 8
Spasticity
2
0/2
1 mg
Placebo
4
Nausea, vomiting, loss of appetite
6
3/3
0.5–6 mg. Most common: 0.5–2 mg (n = 4)
Placebo
Acute/ < 1 week (n = 3) to 6–8 (n = 3)
11
3/8
1–8 mg. Most common: 1–4 mg (n = 10)
Active
Acute to 1
Huntington
1
0/1
1 and 2 mg
Placebo
5
Dystonia
1
0/1
0.03 mg
Placebo
Acute
Parkinson
2
1/1
0.06 and 2 mg
Placebo
Acute and 4
Anxiety
8
5/3
1–8 mg
Placebo
 < 1 week to 10
2
0/2
0.5 and 2 mg
Active
6 and 8
Dementia
1
0/1
2 mg
Placebo
6
Depression
5
4/1
1–5 mg
Placebo
Acute to 10. Most common: 4–5 (n = 3)
2
0/2
0.5 and 2 mg
Active
6 and 8
PTSD
1
0/1
3 mg
Placebo
7
Sleep
7
4/3
1–8 mg. Most common: 1–4 mg (n = 6)
Placebo
 < 1 week to 8
2
0/2
0.5, 1 and 2 mg
Active
2 and 6
SUDs
3
1/2
2, 6 and 8 mg
Placebo
 < 1 week (n = 2) and 10
Cannabidiol
Chronic pain
1
1/0
20 mg, 30 mg
Placebo
12
Nausea, vomiting, loss of appetite
1
1/0
200 mg
Placebo
13
Huntington
1
0/1
10 mg
Placebo
6
Epilepsy
6
6/0
10–300 mg. Most common: 10–20 mg (n = 4)
Placebo
14 (n = 4), 16 and 18
Parkinson
3
2/1
75 and 300 mg
Placebo
Acute, 6 and 12
Anxiety
11
9/2
400–800 mg. Most common: 300 mg (n = 4), 400 mg (n = 3)
Placebo
Acute to 12. Most common: acute to < 1 week (n = 5)
Depression
6
6/0
75–400 mg
Placebo
1 to 13
Psychosis/schizophrenia
4
3/1
300 mg, 600 mg (n = 2) and 1000 mg
Placebo
Acute (n = 2) and 6 (n = 2)
1
1/0
800 mg
Active
4
Sleep
9
9/0
10–1000 mg. Most common: 10–20 mg (n = 5)
Placebo
1 to 14. Most common: 12–14 (n = 5)
SUDs
7
6/2
400–800 mg. Most common doses: 800 mg (n = 5)
Placebo
Acute to 13. Most common: < 1 week (n = 4)
Nabiximols
Chronic pain
20
16/4
10.8–129.6 mg THC: 10–120 mg CBD. Most common: 32.4 mg THC: 30 mg:CBD (n = 7), 129.6 mg THC: 120 mg CBD (n = 5)
Placebo
2 to 14. Most common: 5 (n = 6), 12 (n = 4)
Spasticity
14
6/4
8.1–129.6 mg THC: 7.5–120 mg CBD. Most common: 32.4 mg THC: 30 mg:CBD (n = 6), 129.6 mg THC: 120 mg CBD (n = 2)
Placebo
2 to 14. Most common: 12 (n = 3), 6 (n = 3), 4 (n = 3)
Nausea, vomiting, loss of appetite
8
6/2
5–129.6 mg THC: 2–120 mg CBD
Placebo
 < 1 week to 12. Most common: < 1 week (n = 3)
ALS
1
1/0
32.4 mg THC: 30 mg CBD
Placebo
6
Chorea Hunington
1
0/1
32.4 mg THC: 30 mg CBD
Placebo
12
Dystonia
1
0/1
32.4 mg THC: 30 mg CBD
Placebo
12
Glaucoma
1
0/1
CBD: THC (1:21). 20, 40 mg
Placebo
Acute
MS
5
4/1
30–129.6 mg THC: 10.8–120 mg CBD
Placebo
2 to 14. Most common: 14 (n = 2)
ADHD
1
1/0
37.8 mg THC: 35 mg CBD
Placebo
6
Depression
8
5/3
32.4–129.6 mg THC: 30–120 mg CBD. Most common: 32.4 mg THC: 30 mg:CBD (n = 2)
Placebo
 < 1 week to 12. Most common: 12 (n = 3)
Anxiety
6
3/3
30–129.6 mg THC: 10.8–120 mg CBD
Placebo
3 to 12. Most common: 12 (n = 2)
Sleep
22
18/4
16.2–129.6 mg THC: 15–120 mg CBD. Most common: 32.4 mg THC: 30 mg:CBD (n = 6), 129.6 mg THC: 120 mg CBD (n = 4)
Placebo
 < 1 week to 14. Most common: 5 (n = 6), 12 (n = 4)
SUDs
4
3/1
64.8–113.4 mg THC: 60–105 mg CBD
Placebo
 < 1 week to 12. Most common: 12 (n = 2)
Table 3
Summary of findings. GRADE Working Group grades of evidence. High quality: Further research is very unlikely to change our confidence in the estimate of effect. Moderate quality: Further research is likely to have an important impact on our confidence in the estimate of effect and may change the estimate. Low quality: Further research is very likely to have an important impact on our confidence in the estimate of effect and is likely to change the estimate. Very low quality: We are very uncertain about the estimate
 
Comparison
No. of participants (studies)
I2 (%)
GRADE
Relative effect (95% CI)
Anticipated absolute effects
Outcome
Risk with control
Risk difference with Cannabinoids
Chronic pain
Dronabinol vs Placebo
1395 (15 RCTs)
53
⨁⨁⨁◯
MODERATE c
  
SMD 0.31 lower
(0.46 lower to 0.15 lower)
Dronabinol vs Active
14 (1 RCT)
    
SMD 0.73 higher
(0.1 lower to 1.56 higher)
Nabilone vs Placebo
363 (9 RCTs)
70
⨁⨁◯◯
LOW c,g
  
SMD 0.41 lower
(0.76 lower to 0.06 lower)
Nabilone vs Active
262 (3 RCTs)
83
⨁◯◯◯
VERY LOW c,e
  
SMD 0.08 lower
(0.54 lower to 0.38 higher)
Cannabidiol vs Placebo
129 (1 RCT)
    
SMD 0.01 higher
(0.34 lower to 0.35 higher)
Nabiximols vs Placebo
3238 (21 RCTs)
65
⨁⨁⨁◯
MODERATE c
  
SMD 0.23 lower
(0.34 lower to 0.12 lower)
Spasticity
Dronabinol vs Placebo
704 (6 RCTs)
52
⨁⨁◯◯
LOW c,f
  
SMD 0.08 lower
(0.34 lower to 0.17 higher)
Nabilone vs Placebo
44 (2 RCTs)
68
⨁◯◯◯
VERY LOW a,c,g
  
SMD 0.7 lower
(1.56 lower to 0.16 higher)
Nabiximols vs Placebo
1658 (14 RCTs)
68
⨁⨁⨁◯
MODERATE c
  
SMD 0.36 lower
(0.54 lower to 0.19 lower)
Nausea/vomiting
Dronabinol vs Placebo
495 (8 RCTs)
61
⨁⨁◯◯
LOW c,f
  
SMD 0 .21 lower
(0.49 lower to 0.07 higher)
Dronabinol vs Active
308 (5 RCTs)
0
⨁⨁◯◯
LOW a,g
  
SMD 0.28 lower
(0.47 lower to 0.1 lower)
Nabilone vs Placebo
603 (4 RCTs)
61
⨁⨁◯◯
LOW c,f
  
SMD 0.09 lower
(0.36 lower to 0.18 higher)
Nabilone vs Active
627 (11 RCTs)
46
⨁⨁◯◯
LOW b,c
  
SMD 0.44 lower
(0.62 lower to 0.26 lower)
Nabiximols vs Placebo
393 (6 RCTs)
56
⨁◯◯◯
VERY LOW a,e
  
SMD 0.23 lower
(0.55 lower to 0.08 higher)
Appetite
Dronabinol vs Placebo
599 (10 RCTs)
81
⨁⨁⨁◯
MODERATE c
  
SMD 0.51 lower
(0.87 lower to 0.15 lower)
Dronabinol vs Active
795 (3 RCTs)
86
⨁⨁◯◯
LOW c,f
  
SMD 0.02 lower
(0.39 lower to 0.34 higher)
Nabilone vs Placebo
187 (4 RCTs)
74
⨁◯◯◯
VERY LOW c,e
  
SMD 0.44 lower
(0.98 lower to 0.11 higher)
Nabilone vs Active
130 (3 RCTs)
85
⨁◯◯◯
VERY LOW a,d, g
  
SMD 0.24 higher
(0.51 lower to 0.99 higher)
Cannabidiol vs Placebo
27 (1 RCT)
    
SMD 0.1 higher
(0.66 lower to 0.85 higher)
Nabiximols vs Placebo
430 (6 RCTs)
66
⨁⨁◯◯
LOW c,f
  
SMD 0.25 lower
(0.61 lower to 0.1 higher)
Amyotrophic lateral sclerosis
Dronabinol vs Placebo
22 (1 RCT)
    
SMD 0.26 higher
(0.17 lower to 0.68 higher)
Nabiximols vs Placebo
59 (1 RCT)
    
SMD 0.38 higher
(0.13 lower to 0.90 higher)
Chorea Huntington
Nabilone vs Placebo
74 (1 RCT)
    
SMD 0.45 lower
(0.79 lower to 0.11 lower)
Cannabidiol vs Placebo
30 (1 RCT)
    
SMD 0.18 higher
(0.33 lower to 0.69 higher)
Nabiximols vs Placebo
50 (1 RCT)
    
SMD 0.17 higher
(0.23 lower to 0.56 higher)
Dystonia
Dronabinol vs Placebo
14 (1 RCT)
    
SMD 0.05 higher
(0.69 lower to 0.79 higher)
Nabilone vs Placebo
26 (1 RCT)
    
SMD 0.49 lower
(1.07 lower to 0.08 higher)
Nabiximols vs Placebo
50 (1 RCT)
    
SMD 0
(0.39 lower to 0.39 higher)
Epilepsy
Cannabidiol vs Placebo
956 (6 RCTs)
0
⨁⨁⨁⨁
HIGH
  
SMD 0.5 lower
(0.62 lower to 0.38 lower)
Glaucoma
Dronabinol vs Placebo
12 (1 RCT)
    
SMD 1.28 lower
(2.36 lower to 0.2 lower)
Nabiximols vs Placebo
12 (1 RCT)
    
SMD 0.82 higher
(0.1 lower to 1.75 higher)
IBS
Dronabinol vs Placebo
81 (2 RCTs)
85
⨁◯◯◯
VERY LOW c,e
  
SMD 0
(1.09 lower to 1.09 higher)
MS
Dronabinol vs Placebo
660 (2 RCTs)
74
⨁⨁◯◯
LOW c,f
  
SMD 0.15 lower
(0.51 lower to 0.22 higher)
Nabiximols vs Placebo
863 (5 RCTs)
65
⨁⨁◯◯
LOW c,f
  
SMD 0.14 lower
(0.38 lower to 0.11 higher)
Parkinson
Nabilone vs Placebo
51 (2 RCTs)
46
⨁◯◯◯
VERY LOW c,e
  
SMD 0.38 lower
(1.05 lower to 0.29 higher)
Cannabidiol vs Placebo
101 (3 RCTs)
0
⨁⨁⨁◯
MODERATE g
  
SMD 0.41 lower
(0.75 lower to 0.08 lower)
ADHD
Nabiximols vs Placebo
30 (1 RCT)
    
SMD 0.83 lower
(1.58 lower to 0.09 lower)
Anorexia nervosa
Dronabinol vs Placebo
48 (1 RCT)
    
SMD 0.47 lower
(0.89 lower to 0.05 lower)
Dronabinol vs Active
22 (1 RCT)
    
SMD 0.06 lower
(0.65 lower to 0.53 higher)
Anxiety
Dronabinol vs Placebo
113 (4 RCTs)
49
⨁⨁◯◯
LOW e
  
SMD 0.03 lower
(0.47 lower to 0.41 higher)
Dronabinol vs Active
278 (1 RCT)
    
SMD 0.14 higher
(0.03 lower to 0.31 higher)
Nabilone vs Placebo
147 (6 RCTs)
84
⨁◯◯◯
VERY LOW a,c,e
  
SMD 0.59 lower
(1.4 lower to 0.22 higher)
Nabilone vs Active
192 (2 RCTs)
11
⨁⨁◯◯
LOW e
  
SMD 0.11 lower
(0.33 lower to 0.11 higher)
Cannabidiol vs Placebo
481 (11 RCTs)
78
⨁◯◯◯
VERY LOW c,e
  
SMD 0.34 lower
(0.73 lower to 0.06 higher)
Nabiximols vs Placebo
258 (6 RCTs)
43
⨁⨁◯◯
LOW e
  
SMD 0.06 higher
(0.23 lower to 0.34 higher)
Dementia
Dronabinol vs Placebo
115 (3 RCTs)
3
⨁⨁◯◯
LOW e
  
SMD 0.27 lower
(0.57 lower to 0.04 higher)
Nabilone vs Placebo
76 (1 RCT)
    
SMD 0.53 lower
(0.87 lower to 0.19 lower)
Depression
Dronabinol vs Placebo
700 (7 RCTs)
83
⨁⨁◯◯
LOW c,f
  
SMD 0.15 lower
(0.49 lower to 0.19 higher)
Dronabinol vs Active
278 (1 RCT)
    
SMD 0.14 higher
(0.03 lower to 0.31 higher)
Nabilone vs Placebo
76 (3 RCTs)
0
⨁⨁◯◯
LOW e
  
SMD 0.03 lower
(0.48 lower to 0.43 higher)
Nabilone vs Active
192 (2 RCTs)
0
⨁⨁◯◯
LOW e
  
SMD 0.03 lower
(0.23 lower to 0.17 higher)
Cannabidiol vs Placebo
301 (6 RCTs)
0
⨁⨁◯◯
LOW e
  
SMD 0.12 higher
(0.09 lower to 0.34 higher)
Nabiximols vs Placebo
413 (7 RCTs)
43
⨁⨁⨁◯
MODERATE f
  
SMD 0.12 lower
(0.36 lower to 0.13 higher)
PTSD
Dronabinol vs Placebo
46 (1 RCT)
    
SMD 0.63 lower
(1.22 lower to 0.03 lower)
Nabilone vs Placebo
18 (1 RCT)
    
SMD 0.88 lower
(1.65 lower to 0.11 lower)
Schizophrenia
/psychosis
Dronabinol vs Placebo
26 (1 RCT)
    
SMD 0.89 higher
(0.25 higher to 1.53 higher)
Cannabidiol vs Placebo
152 (3 RCTs)
70
⨁◯◯◯
VERY LOW c,f
  
SMD 0.24 lower
(0.81 lower to 0.33 higher)
Cannabidiol vs Active
39 (1 RCT)
    
SMD 0.05 higher
(0.58 lower to 0.68 higher)
Sleep
Dronabinol vs Placebo
683 (7 RCTs)
64
⨁⨁◯◯
LOW c,f
  
SMD 0.13 lower
(0.39 lower to 0.12 higher)
Dronabinol vs Active
22 (1 RCT)
    
SMD 1.12 higher
(0.37 higher to 1.87 higher)
Nabilone vs Placebo
175 (6 RCTs)
77
⨁◯◯◯
VERY LOW c,g
  
SMD 0.58 lower
(1.14 lower to 0.01 lower)
Nabilone vs Active
200 (2 RCTs)
91
⨁◯◯◯
VERY LOW d,e
  
SMD 0.21 lower
(0.97 lower to 0.55 higher)
Cannabidiol vs Placebo
961 (8 RCTs)
46
⨁⨁◯◯
LOW a,c
  
SMD 0.06 lower
(0.23 lower to 0.11 higher)
Nabiximols vs Placebo
3659 (23 RCTs)
61
⨁⨁⨁◯
MODERATE c
  
SMD 0.24 lower
(0.35 lower to 0.14 lower)
SUDs
Dronabinol vs Placebo
196 (3 RCTs)
0
⨁⨁◯◯
LOW a,g
  
SMD 0.47 lower
(0.73 lower to 0.2 lower)
Dronabinol vs Active
60 (1 RCT)
    
SMD 0.85 lower
(1.41 lower to 0.29 lower)
Nabilone vs Placebo
70 (3 RCTs)
0
⨁⨁◯◯
LOW a,g
  
SMD 0.55 lower
(0.93 lower to 0.18 lower)
Cannabidiol vs Placebo
353 (7 RCTs)
81
⨁◯◯◯
VERY LOW c,e
  
SMD 0.2 lower
(0.63 lower to 0.24 higher)
Nabiximols vs Placebo
237 (4 RCTs)
59
⨁⨁⨁◯
MODERATE g
  
SMD 0.48 lower
(0.92 lower to 0.04 lower)
Tourette
Dronabinol vs Placebo
41 (2 RCTs)
0
⨁⨁⨁◯
MODERATE g
  
SMD 1.01 lower
(1.58 lower to 0.44 lower)
Retention
Dronabinol vs Placebo
3285 (37 RCTs)
65
⨁⨁◯◯
LOW c,f
OR 1.11
(0.80 to 1.53)
194 per 1.000
17 more per 1.000
(33 fewer to 75 more)
Dronabinol vs Active
1079 (8 RCTs)
32
⨁◯◯◯
VERY LOW a,e
OR 1.03
(0.76 to 1.40)
422 per 1.000
7 more per 1.000
(65 fewer to 83 more)
Nabilone vs Placebo
1070 (16 RCTs)
0
⨁◯◯◯
VERY LOW a,e
OR 0.99
(0.76 to 1.29)
143 per 1.000
1 fewer per 1.000
(30 fewer to 34 more)
Nabilone vs Active
1004 (13 RCTs)
0
⨁◯◯◯
VERY LOW a,e
OR 0.99
(0.79 to 1.25)
205 per 1.000
2 fewer per 1.000
(36 fewer to 39 more)
Cannabidiol vs Placebo
1775 (22 RCTs)
41
⨁◯◯◯
VERY LOW c,g
OR 1.38
(0.77 to 2.47)
71 per 1.000
24 more per 1.000
(15 fewer to 88 more)
Nabiximols vs Placebo
4643 (33 RCTs)
44
⨁⨁◯◯
LOW c,f
OR 1.17
(0.92 to 1.49)
170 per 1.000
23 more per 1.000
(11 fewer to 64 more)
Adverse events
Dronabinol vs Placebo
2707 (37 RCTs)
56
⨁⨁◯◯
LOW c
OR 2.16
(1.59 to 2.94)
320 per 1.000
184 more per 1.000
(108 more to 260 more)
Dronabinol vs Active
925 (8 RCTs)
67
⨁⨁◯◯
LOW a,c
OR 2.75
(1.43 to 5.26)
466 per 1.000
240 more per 1.000
(89 more to 355 more)
Nabilone vs Placebo
996 (16 RCTs)
76
⨁⨁⨁◯
MODERATE c
OR 3.12
(1.52 to 6.42)
226 per 1.000
251 more per 1.000
(81 more to 426 more)
Nabilone vs Active
909 (13 RCTs)
71
⨁⨁◯◯
LOW a,c
OR 2.47
(1.45 to 4.20)
223 per 1.000
192 more per 1.000
(71 more to 324 more)
Cannabidiol vs Placebo
1736 (22 RCTs)
58
⨁⨁⨁◯
MODERATE c
OR 1.82
(1.08 to 3.07)
482 per 1.000
147 more per 1.000
(19 more to 259 more)
Nabiximols vs Placebo
4404 (33 RCTs)
74
⨁⨁⨁◯
MODERATE c
OR 1.97
(1.48 to 2.64)
536 per 1.000
159 more per 1.000
(95 more to 217 more)
*The basis for the assumed risk (e.g. the median control group risk across studies) is provided in footnotes. The risk difference (and its 95% confidence interval) is based on the assumed risk in the comparison group and the relative effect of the intervention (and its 95% CI). CI confidence interval, OR odds ratio. aModerate-High risk of bias; bMany high risk of bias; cModerate-Substantial heterogeneity; dHigh heterogeneity; eOptimal information size not met, CI overlaps no effect; fOptimal information size met, CI overlaps no effect; gOptimal information size not met, CI excludes no effect
Fig. 2
GRADE summary graph. Percentage of studies showing high, moderate, low, very low evidence and single RCTs for each cannabinoid type (A) and outcome (B)
Bild vergrößern

Primary outcomes

Chronic pain

The meta-analysis (Fig. 3) showed the beneficial effect of cannabinoids on chronic pain (SMD − 0.26, 95% CI − 0.35 to − 0.17; P < 0.00001). Further subgroup analyses indicated that compared to placebo, dronabinol [10, 11, 95, 106, 139, 150, 161, 12, 23, 34, 45, 56, 72, 73, 84] and nabiximols [10, 3344, 4652] were associated with significant improvements and moderate evidence (Fig. 2B) in conditions causing chronic pain (dronabinol SMD − 0.31; nabiximols SMD − 0.25, P < 0.0001). Trials using nabilone vs placebo [114, 115, 118, 119, 122, 124126, 162] (but not vs active [120, 121, 123]) also reported a significant effect (SMD − 0.41, P = 0.02), but the evidence on this effect was low (Fig. 2B). The to date single RCTs with CBD vs placebo [153] and dronabinol vs active drug [69] reported no effect.
Fig. 3
Chronic pain forest plot, stratified according to cannabinoid type and comparator used. The horizontal lines indicate 95% CIs. The diamond markers represent the subtotal and overall weighed standardized mean difference (SMD) mean difference and 95% CI. The vertical line shows the line of no effect
Bild vergrößern

Spasticity with MS and paraplegia

When all RCTs were pooled (Fig. 4), a significant effect favouring cannabinoids was found (SMD − 0.31, 95% CI − 0.45 to − 0.16; P < 0.0001). Yet, subgroup analyses indicated that only nabiximols [38, 4044, 46, 47, 49, 5355, 57, 58] were associated with improvements in spasticity (SMD − 0.36, 95% CI − 0.54 to − 0.19; P < 0.0001), and the limited number of studies found with dronabinol [12, 67, 7072, 150] /nabilone [126, 127] did not provide enough evidence.
Fig. 4
Spasticity forest plot, stratified according to cannabinoid type and comparator used. The horizontal lines indicate 95% CIs. The diamond markers represent the subtotal and overall weighed standardized mean difference (SMD) mean difference and 95% CI. The vertical line shows the line of no effect
Bild vergrößern

Nausea and vomiting

The meta-analysis of nausea and vomiting (Additional file 4: Fig. S9) including all studies showed a general efficacy of cannabinoids (SMD − 0.29, 95% CI − 0.39 to − 0.18; P < 0.00001). Confidence on the results from earlier trials reporting improvements in nausea and vomiting versus an active comparator (dronabinol [77, 80, 83, 87]: SMD − 0.28, P = 0.003; nabilone [129138, 141]: SMD − 0.44, P < 0.00001) is low due to the lack of methodical rigor. Dronabinol [10, 76, 79, 81, 82, 85, 88, 91], nabilone [115, 140, 142, 162] and nabiximols [10, 59, 60, 62, 63, 85]) were not better than placebo.

Appetite

The meta-analysis (Fig. 5) showed the efficacy of cannabinoids for increasing appetite scores compared to the control arms (SMD − 0.26, P = 0.005). Only the combination of dronabinol-placebo [10, 7476, 82, 85, 8890, 92] (but not vs active [78, 83, 86]) retained the stimulating effect on appetite (SMD − 0.51, 95% CI − 0.87 to − 0.15; P = 0.006). Low/very low evidence and a lack of significance was found for nabilone (vs placebo [114, 115, 143, 162]: SMD − 044, P = 0.12; vs active [129, 137, 138]: SMD 0.24), CBD [154] (SMD 0.10, P = 0.80) or nabiximols [10, 40, 6163, 85] (SMD − 0.25, P = 0.16).
Fig. 5
Appetite forest plot, stratified according to cannabinoid type and comparator used. The horizontal lines indicate 95% CIs. The diamond markers represent the subtotal and overall weighed standardized mean difference (SMD) mean difference and 95% CI. The vertical line shows the line of no effect
Bild vergrößern

Amyotrophic lateral sclerosis

To date, only one cross-over RCT with dronabinol [75] and one parallel RCT with nabiximols [40] have been carried out in patients suffering from ALS (Additional file 4: Fig. S10). The two trials did not report any improvement in ALS scores and the pooled effect indicated an almost significant effect favouring placebo (SMD 0.31, P = 0.07).

Chorea Huntington

The meta-analysis of the three included studies (Additional file 4: Fig. S11) showed a tendency towards favouring cannabinoids with significant subgroup differences (P = 0.03). That is, the calculated SMD from a single study with nabilone [144] (SMD − 0.45, 95% CI − 0.79 to − 0.11; P = 0.009) but not with CBD [155] or nabiximols [64] (SMD 0.18, P = 0.48 / SMD 0.17, P = 0.4) was significant.

Dystonia

Results with the three small cross-over studies (Additional file 4: Fig. S12) showed a potential benefit of nabilone [145] (SMD − 0.49, P = 0.09) and a lack of effect of nabiximols [64] (SMD 0) and dronabinol [73] (SMD 0.05).

Epilepsy

First reported by an early small study [156] and recently by a series of publications from a large international clinical trial [13, 157160], CBD was associated with a significant decrease in seizure frequencies (Fig. 6, SMD − 0.50, 95% CI − 0.62 to 0.38; P < 0.00001).
Fig. 6
Epilepsy forest plot. The horizontal lines indicate 95% CIs. The diamond markers represent the subtotal and overall weighed standardized mean difference (SMD) mean difference and 95% CI. The vertical line shows the line of no effect
Bild vergrößern

Glaucoma

Only a very small cross-over trial [94] tested the effects of dronabinol and nabiximols on ocular hypertension (Additional file 4: Fig. S13). Dronabinol produced a transient benefit (SMD − 1.28, 95% CI − 2.36 to − 0.20; P = 0.02), while nabiximols (CBD combined with small amounts of dronabinol) resulted in a transient worsening (SMD − 0.82, P = 0.08).

Irritable bowel syndrome

Two (one parallel [106] and one cross-over [96]) studies tested the effect of acute dronabinol administration on colonic and visceral symptoms (Additional file 4: Fig. S14). Individual results favoured dronabinol and placebo, respectively, resulting in an overall no effect (SMD 0) with a very low evidence.

Multiple sclerosis

Nabiximols [41, 43, 49, 58, 65] or/and dronabinol [97, 117] did not improve symptoms associated with MS (Additional file 4: Fig. S15, overall SMD − 0.13, 95% CI − 0.31 to 0.05; P = 0.15), and none of the subgroups achieved significant improvements (dronabinol SMD − 0.15, P = 0.43; nabiximols SMD − 0.14, P = 0.28).

Parkinson’s disease

Meta-analysis from all studies (Fig. 7) favoured cannabinoids (SMD − 0.41, 95% CI − 0.69 to − 0.13; P = 0.004), and subgroup analyses indicated that CBD [1416] (SMD − 0.41, 95% CI − 0.75 to − 0.08; P = 0.02) but not nabilone [125, 146] (SMD − 0.38; P = 0.27) was associated with a significant improvement in parkinsonian symptoms.
Fig. 7
Parkinson’ disease forest plot, stratified according to cannabinoid type and comparator used. The horizontal lines indicate 95% CIs. The diamond markers represent the subtotal and overall weighed standardized mean difference (SMD) mean difference and 95% CI. The vertical line shows the line of no effect
Bild vergrößern

ADHD

One small parallel RCT [66] comparing nabiximols with placebo in ADHD found significant differences in scores of hyperactivity and impulsivity (SMD − 0.83, 95% CI − 1.58 to − 0.09; P = 0.03).
Anorexia nervosa
Two small cross-over RCTs with dronabinol [98, 100] (Additional file 4: Fig. S16) found an increase in body weight when compared with placebo (SMD − 0.47; P = 0.03), but not with diazepam (SMD − 0.06, P = 0.84).

Anxiety

Measurements of anxiety were included in dronabinol vs placebo trials in 4 RCTs [23, 45, 92, 102] and vs prochlorperazine in one study [86]; nabilone in comparison with placebo trials in 6 RCTs [118, 119, 125, 143, 148, 151] and versus active comparators in two RCTs [121, 123]; in 11 RCTs [1518, 2022, 24, 25, 153, 163] comparing CBD to placebo and in six nabiximols trials [48, 53, 6164]. The meta-analysis including all studies (Additional file 4: Fig. S17) showed that cannabinoids attenuate anxiety levels (SMD − 0.19, 95% CI − 0.37 to − 0.00; P = 0.05), but none of the subgroup analysis showed a significant improvement in anxiety. The quality of evidence of these results was low or very low (Fig. 2B).

Dementia

Disturbed, agitated behaviour in dementia was assessed in 4 RCTs (Additional file 4: Fig. S18), with an overall significant effect (SMD − 0.37, 95% CI − 0.61 to − 0.13; P = 0.002); however, the evidence for specific cannabinoids is low or missing (Fig. 2B). While the three studies with dronabinol [74, 105, 107] collectively did not reach significance (SMD − 0.27, P = 0.09), a single study with nabilone [114] reported a significant reduction (SMD − 0.53, 95% CI − 0.87 to − 0.19; P = 0.002).

Depression

Symptoms of depression caused by diverse medical conditions were evaluated with dronabinol in seven RCTs versus placebo [12, 23, 45, 75, 92, 102, 117] and in one study versus prochlorperazine [86]; with nabilone, three studies comparing placebo [118, 125, 151] and two comparing an active drug [121, 123] were carried out; placebo was compared with CBD in 6 RCTs [15, 19, 22, 24, 153, 154] and with nabiximols in 7 RCTs [48, 49, 53, 6164]. The overall meta-analysis (Additional file 4: Fig. S19, SMD − 0.04, P = 0.53) was consistent with the results found in all subgroups reporting minor or no attenuations of depressive symptoms. CBD and nabilone did not modify depressive symptoms, and dronabinol and nabiximols showed a minor improvement compared with placebo (dronabinol: SMD − 0.15, P = 0.39; nabiximols: SMD − 0.12, P = 0.35), but the evidence was moderate only for nabiximols (Fig. 2B).

PTSD

Two small studies with dronabinol [104] and nabilone [152] (Additional file 4: Fig. S20) found significant improvements compared with placebo (dronabinol: SMD − 0.63, 95% CI − 1.22 to − 0.03; P = 0.04; nabilone: SMD − 0.88, 95% CI − 1.65 to − 0.11; P = 0.03).

Schizophrenia and psychosis

The trials evaluating PANNS symptoms (Additional file 4: Fig. S21) showed no effect of cannabinoids (SMD 0.04, P = 0.89) but with subgroup differences (P = 0.03). Thus, a study with dronabinol [108] found a deterioration (SMD 0.89, 95% CI 0.25 to 1.53; P = 0.007), whereas CBD [25, 26, 28, 164] had no effect but the grade of evidence was very low (Fig. 2B).

Sleep

Several trials included within their outcomes sleep measurements (Fig. 8). From the studies with dronabinol, seven [10, 12, 34, 75, 92, 109, 150] were compared to placebo and one cross-over [100] with diazepam; with nabilone, 6 trials [118, 125, 143, 149, 152, 162] used placebo and two trials [120, 123] used active comparators; and eight CBD [13, 15, 19, 22, 153, 157159] and 23 nabiximols [10, 3335, 37, 38, 40, 41, 43, 44, 4652, 57, 58, 6163] used placebo. The overall meta-analysis showed a clear improvement in sleep scores (SMD − 0.20, 95% CI − 0.29 to − 0.11; P < 0.0001), but also significant subgroup differences (P = 0.005). Significant effects favouring cannabinoids were restricted to trials comparing nabilone and nabiximols with placebo. Although nabiximols demonstrated the highest efficacy (SMD − 0.24, 95% CI − 0.35 to − 0.14; P < 0.00001) and a moderate quality evidence (Fig. 2B), meta-regression did not indicate a significant superiority versus nabilone (additional file 5, Q = 1.96, P = 0.1618).
Fig. 8
Sleep forest plot, stratified according to cannabinoid type and comparator used. The horizontal lines indicate 95% CIs. The diamond markers represent the subtotal and overall weighed standardized mean difference (SMD) mean difference and 95% CI. The vertical line shows the line of no effect
Bild vergrößern

Substance abuse

The overall analysis (Fig. 9) indicates that cannabinoids have a beneficial effect in the treatment of drug dependence (SMD − 0.41, 95% CI − 0.63 to − 0.19; P = 0.0003), an effect seen in all subgroup analyses except for CBD [19, 20, 22, 24, 3032]. Although dronabinol [92, 110, 111] showed the highest efficacy (vs placebo: SMD − 0.47, P = 0.0006; vs. active [101]: SMD − 0.85; P = 0.003), followed by nabilone [143, 149, 151] (SMD − 0.55, 95% CI − 0.93 to − 0.18; P = 0.003), confidence on those results was low and the moderate evidence on the effect estimate was provided only by nabiximols [6163, 68] (SMD − 0.48, 95% CI − 0.92 to − 0.04; P = 0.03) (Fig. 2B). Further meta-regression analysis indicated that the differences in the effect sizes were not related to the cannabinoid type (Additional file 5).
Fig. 9
SUDs forest plot, stratified according to cannabinoid type and comparator used. The horizontal lines indicate 95% CIs. The diamond markers represent the subtotal and overall weighed standardized mean difference (SMD) mean difference and 95% CI. The vertical line shows the line of no effect
Bild vergrößern

Tourette

The two studies [103, 112] reporting the superiority of dronabinol over placebo in attenuating tics severity suggest that dronabinol may be beneficial for Tourette syndrome with a moderate grade of evidence (Fig. 2B) (Fig. 10, SMD − 1.01, 95% CI − 1.58 to − 0.44; P = 0.0005).
Fig. 10
Tourette forest plot. The horizontal lines indicate 95% CIs. The diamond markers represent the subtotal and overall weighed standardized mean difference (SMD) mean difference and 95% CI. The vertical line shows the line of no effect
Bild vergrößern

Secondary outcomes

Dropouts and adverse events were analysed in 45 trials with dronabinol (37 vs placebo [1012, 23, 34, 45, 7076, 79, 81, 8385, 88, 89, 91, 92, 9496, 98, 102, 105110, 112, 139, 150, 161] and 8 vs active comparators [69, 78, 80, 82, 86, 87, 100, 101]), 29 with nabilone (16 vs placebo [114, 118, 119, 124127, 140, 142, 144148, 151, 152] and 13 vs active drugs [120, 121, 123, 129, 130, 132138, 141]) and in 22 and 33 with CBD [1322, 26, 29, 30, 32, 153160] and nabiximols [10, 3338, 4044, 4655, 5760, 6466, 68, 85, 94], respectively vs placebo (Additional file 6).

Retention

Overall retention (Additional file 6: Fig. S22) for all cannabinoids was better in control arms, although not significantly different (OR 1.12, P = 0.1). After subgroup analyses, this result remained in CBD-containing medications versus placebo (OR 1.38, 95% CI 0.77 to 2.47 and OR 1.17, 95% CI 0.92 to 1.49) while dronabinol/nabilone subgroups had an almost identical proportion of dropouts in each treatment arm, regardless of the comparator used. The low/very low evidence of these results (Fig. 2B) suggests that retention may be influenced by other or additional factors than the treatment.

Adverse events

Despite the fact that the dropout rate in cannabinoid-treated patients does not differ from placebo or active comparators, all cannabinoids produce significant adverse events (Additional file 6: Fig. S23). The evidence was low for dronabinol versus placebo (OR 2.16, 95% CI 1.59 to 2.94; P < 0.00001) also in trials using active comparators (OR 2.75, 95% CI 1.43 to 5.26; P = 0.002), but nabiximols and nabilone were associated with a high number of participants reporting adverse events in comparison to placebo (nabiximols OR 1.97, 95% CI 1.48 to 2.64; nabilone OR 3.12, 95% CI 1.52 to 6.42). Though nabiximols showed the highest significance (P < 0.00001) and CBD the lowest (OR 1.82, 95% CI 1.08 to 3.07; P = 0.02), meta-regression analysis did not indicate significant differences (Additional file 5: Q = 0.04, P = 0.8424). It is also important to consider the severity and the adverse event-related dropouts. That is, severe or serious adverse events were reported only by 4.5% of the CBD trials followed by dronabinol and nabilone (5.4% and 6.3%), dronabinol versus active comparators (12.5%), nabiximols (15.2%) and nabilone versus active comparators with 23.1%; lowest adverse event-related dropouts were found with dronabinol and CBD (24.3% and 27.3%), followed by nabilone (vs placebo 43.8%, vs active comparator 53.8%), nabiximols (54.5%) and dronabinol vs active comparators (62.5%).

Discussion

Previous SRs and meta-analyses on cannabinoids [15] (and many others) did not consider, or only considered via sensitivity analysis, that medical cannabinoids and medical plant-derived cannabis products differ largely in their pharmacological mode of action [69] and pharmacokinetics [165]. For the first time, we provide pharmacology-based comparative systematic results for dronabinol, nabilone, CBD and nabiximols for all relevant medical indications. As shown in Fig. 2A, the confidence on the effect estimate strongly differs for these four medications. That is, high quality of evidence is seen only with CBD (6.7% of all CBD trials), and moderate quality of evidence is higher with CBD-containing (CBD 13.3%, nabiximols 37.5%) cannabinoids than with THC-containing (dronabinol 10%, nabilone 4.3%) medications. Notably, these differences are not directly related to a better efficacy, as the proportion of the 152 trials reporting positive results on their primary outcomes did not differ between cannabinoids (dronabinol 52%, nabilone 70%, CBD 52% and nabiximols 57%), resulting in an overall positive effect (data not shown, SMD − 0.33, 95% CI − 0.40 to 0.26; P = 0.0004). Although further meta-regression analyses did not show any specific impact of the cannabinoid type, we still found other differences for the four medications. First, CBD shows with a high grade of evidence effectiveness in the treatment of epilepsy (in particular for Dravet syndrome and Lennox-Gastaut syndrome). Second, there is an overall significant effect of cannabinoids on the improvement of chronic pain, but only dronabinol and nabiximols had moderate evidence. Third, although we found an overall significant effect of cannabinoids on appetite stimulation (especially in HIV/AIDS patients), this effect might be driven by dronabinol with a moderate grade of evidence. Fourth, although the overall effect in Parkinson favoured cannabinoids, only CBD seems to have an effect. Fifth, there was an overall significant effect of cannabinoids on improvement in sleep quality and disturbances and this effect was mainly driven by nabiximols. CBD does not improve sleep but the evidence for this is low. Therefore, it is unclear whether the THC or CBD component of nabiximols (because of low or very low evidence) induces this therapeutic effect. Finally, dronabinol and nabilone improves with a low grade of evidence nausea and vomiting due to chemotherapy. However, this effect is only significant in comparison to active comparators such as prochlorperazine that is not well tolerated by patients undergoing chemotherapy [166] and thus speaks against the use of THC-containing medications for the treatment of nausea and vomiting.
A dichotomy of THC vs. CBD-containing medications is also seen with respect to alterations of physiological functions such as appetite in all medical indications. A recent meta-analysis shows that pharmaceutical THC (dronabinol, nabilone) has no negative effect on appetite, whereas CBD decreases appetite (OR = 2.46 [1.74:4.01] with moderate evidence) [167].
In summary, all medical cannabinoid medications differ in their pharmacology, in their therapeutic profile, and in their profile of adverse events.
The strengths of our study are that we performed for the first time a pharmacology-based comparative systematic analysis of medical cannabinoids. Whole plant-derived cannabis products were excluded from our analysis, as those products have a complex and undefined pharmacology. Thus, we also excluded cannabinoid products with undefined mixtures and other non-approved synthetic cannabinoids in order to reduce heterogeneity. We also excluded studies on healthy individuals and studies with no RCT design to reduce heterogeneity and increase the grade of evidence of our interpretations. Finally, data analysis using SMD allowed the inclusion of a large variety of measurements in the evaluation of the outcomes and allowed us to include many more RCTs for all relevant medical indications than in a previous extensive meta-analysis [3].
There are also limitations. One limitation is the exclusion of an important number of studies (15% of all studies, 31% of all comparisons) that were unable to be graded as they are single RCTs for ALS, Chorea Huntington, dystonia, glaucoma, ADHD, anorexia and PTSD, and therefore could not be included in our conclusions (Fig. 2). Due to missing trials, which was especially the case with CBD for many indications, a second limitation is that we were often unable to directly compare all cannabinoid types, which strongly restricted our conclusions. A third limitation is the inclusion of several RCTs with small study sizes. Small study sizes are of particular concern as it has been previously demonstrated that effects are larger in small studies using cannabinoids [2, 168]. Differences in sample characteristics, durations of the trials and doses or route of administration contributed to heterogeneity in some comparisons, thus limiting the confidence on the findings and the meta-analyses results. In this regard, a systematic meta-regression approach adding those variables as covariates was not possible due to the small number of studies.
In conclusion, medical cannabinoids have an overall positive therapeutic effect for epilepsy, chronic pain, spasticity, appetite, Parkinson’s disease, sleep, SUDs and Tourette. Cannabinoids produce significant adverse events and there is low to moderate grade of evidence for this conclusion depending on the type of cannabinoid. Adverse events produced by cannabinoids do not influence retention in clinical trials, as the dropout rate in cannabinoid-treated patients does not differ from placebo or active comparators. CBD trials reported less adverse events than trials with other medical cannabinoids, but regression analysis did not show any significant differences between these medications; noteworthy, CBD trials reported the lowest percentage of serious adverse events (4.5% of all trials compared with 23% of all nabilone trials).
Most importantly, significant therapeutic effects of medical cannabinoids underlie a large variability in the grade of evidence that depends on the type of cannabinoid. Thus, CBD has a significant therapeutic effect for epilepsy and Parkinson’s disease. The grade of evidence for the treatment of CBD for these conditions is high/moderate. There is moderate evidence for dronabinol for the treatment of chronic pain, appetite and Tourette. Moderate evidence is obtained for nabiximols for having significant therapeutic effects on chronic pain, spasticity, sleep and SUDs. All other significant therapeutic effects of medical cannabinoids have either low, very low or even no grade of evidence, which is the case of single RCTs. In conclusion, dronabinol, nabilone, CBD and nabiximols not only differ in their pharmacology but also in their therapeutic profile. Therefore, future SRs and meta-analyses should consider the pharmacology of cannabinoids.

Conclusions

Cannabinoids are effective therapeutics for several medical indications if their specific pharmacological properties are considered. We suggest that future systematic studies in the cannabinoid field should be based upon their specific pharmacology.

Methods

Methodological details are provided in Additional file 1 [169172].

Study design

This systematic review followed the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) guidelines [173] and was registered at PROSPERO (CRD42021229932).

Search strategy and selection criteria

We searched in eight databases using Medical Subject Heading (MeSH) terms on all literature published until May 2021 (updated in October 2021) separately for dronabinol, nabilone, cannabidiol and nabiximols (Fig. 1, Additional file 2: Table S1) [12, 59, 94, 174263]. Studies identified by our search that fulfilled the inclusion criteria given below were reviewed by both authors and disagreements were solved through discussion or by consulting colleagues with long-standing expertise in the field of medical cannabinoids. The inclusion criteria were as follows:
  • Type of studies: randomized controlled parallel and cross-over trials (RCTs) with allocation concealment that was blinded (single or double blinded) which examined the study objective. We excluded all other study designs, including cohort studies, case control studies, outcome research, case studies, case series, expert opinion and conference abstracts.
  • Type of participants: humans of any age or sex, with a medical condition or health problem of any type.
  • Types of interventions: four medical cannabinoids: dronabinol, nabilone, cannabidiol and nabiximols for the treatment of any medical condition. We excluded natural cannabis-based formulations (i.e. smoked marijuana). If a study compared one type of cannabinoid to another or one type of cannabinoid with another active drug, we included both arms. The following indications were included: chronic pain; spasticity with multiple sclerosis and paraplegia; nausea, vomiting or loss of appetite; gastroenterological, neurodegenerative and other neurological diseases including: amyotrophic lateral sclerosis, irritable bowel syndrome, multiple sclerosis (tremor and bladder dysfunction), Chorea Huntington, epilepsy, dystonia, Parkinson and glaucoma, and psychiatric disorders including ADHD, anorexia nervosa, anxiety disorders, dementia, depression, psychotic disorders and schizophrenia, PTSD, sleeping disorders, substance abuse disorders and Tourette.
  • Types of outcomes measures: Eligible outcomes were patient-important and disease-specific outcomes (primary outcomes), retention and adverse events (secondary outcomes).
Data were extracted based on the PICO (Population, Intervention, Comparator and Outcome) format. Risk of bias was assessed using the Cochrane Collaboration’s tool for assessing risk of bias as outlined in the Cochrane Handbook for Systematic Reviews of Interventions [169] and contained in Review Manager (RevMan) version 5.4.1. (The Cochrane Collaboration, 2020). Grading of evidence was assessed using GRADEpro [170]. Both assessments were completed independently by both reviewer authors.

Data synthesis and statistical analysis

All analyses were conducted using Review Manager (RevMan) version 5.4.1. (The Cochrane Collaboration, 2020). Dichotomous and continuous outcomes were pooled as odds ratios (ORs) and standardized mean difference (SMD), respectively using random effects. For cross-over trials, SMD and SE were calculated with the correlation coefficient estimated at 0.5, according to the Becker-Balagtas marginal method [171]. Heterogeneity was assessed using the I2 statistic. Analyses were stratified by outcome and conducted with subgroup analyses by cannabinoid type and comparator. For direct comparisons between two subgroups, meta-regression was performed using type of cannabinoid as covariate.

Acknowledgements

We are thankful to Hans Bomhard who was involved in all steps of assessment of search results and full-text articles. Rick Bernardi did a final English editing.

Declarations

Not applicable.
Not applicable.

Competing interests

The authors declare that they have no competing interests.
Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data.

Publisher’s Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Download
Titel
Medical cannabinoids: a pharmacology-based systematic review and meta-analysis for all relevant medical indications
Verfasst von
Ainhoa Bilbao
Rainer Spanagel
Publikationsdatum
01.12.2022
Verlag
BioMed Central
Erschienen in
BMC Medicine / Ausgabe 1/2022
Elektronische ISSN: 1741-7015
DOI
https://doi.org/10.1186/s12916-022-02459-1
1.
Zurück zum Zitat Sarris J, Sinclair J, Karamacoska D, Davidson M, Firth J. Medicinal cannabis for psychiatric disorders: a clinically-focused systematic review. BMC Psychiatry. 2020;20(1):24.
2.
Zurück zum Zitat Black N, Stockings E, Campbell G, Tran LT, Zagic D, Hall WD, et al. Cannabinoids for the treatment of mental disorders and symptoms of mental disorders: a systematic review and meta-analysis. Lancet Psychiatry. 2019;6(12):995–1010.PubMedPubMedCentralCrossRef
3.
Zurück zum Zitat Whiting PF, Wolff RF, Deshpande S, Di Nisio M, Duffy S, Hernandez AV, et al. Cannabinoids for medical use: a systematic review and meta-analysis. JAMA - J Am Med Assoc. 2015;313(24):2456–73 (on=viewrecord&id=L605276146&from=export).CrossRef
4.
Zurück zum Zitat Ben AM. Cannabinoids in medicine: a review of their therapeutic potential. J Ethnopharmacol. 2006;105(1–2):1–25.
5.
Zurück zum Zitat Hoch E, Niemann D, von Keller R, Schneider M, Friemel CM, Preuss UW, et al. How effective and safe is medical cannabis as a treatment of mental disorders? A systematic review. Eur Arch Psychiatry Clin Neurosci. 2019;269(1):87–105.PubMedPubMedCentralCrossRef
6.
Zurück zum Zitat Mechoulam R, Hanuš LO, Pertwee R, Howlett AC. Early phytocannabinoid chemistry to endocannabinoids and beyond. Nat Rev Neurosci. 2014;15:757–64.PubMedCrossRef
7.
Zurück zum Zitat Laprairie RB, Bagher AM, Kelly MEM, Denovan-Wright EM. Cannabidiol is a negative allosteric modulator of the cannabinoid CB1 receptor. Br J Pharmacol. 2015;172(20):4790–805.PubMedPubMedCentralCrossRef
8.
Zurück zum Zitat Pacher P, Kogan NM, Mechoulam R. Beyond THC and Endocannabinoids. Annu Rev Pharmacol Toxicol. 2020;60:637–59.PubMedCrossRef
9.
Zurück zum Zitat Hanuš LO, Meyer SM, Muñoz E, Taglialatela-Scafati O, Appendino G. Phytocannabinoids: a unified critical inventory. Nat Prod Rep. 2016;33(12):1357–92.PubMedCrossRef
10.
Zurück zum Zitat Johnson JR, Burnell-Nugent M, Lossignol D, Ganae-Motan ED, Potts R, Fallon MT. Multicenter, double-blind, randomized, placebo-controlled, parallel-group study of the efficacy, safety, and tolerability of THC:CBD extract and THC extract in patients with intractable cancer-related pain. J Pain Symptom Manage. 2010;39(2):167–79.PubMedCrossRef
11.
Zurück zum Zitat Noyes RJ, Brunk SF, Avery DA, Canter AC. The analgesic properties of delta-9-tetrahydrocannabinol and codeine. Clin Pharmacol Ther. 1975;18(1):84–9.PubMedCrossRef
12.
Zurück zum Zitat Zajicek J, Fox P, Sanders H, Wright D, Vickery J, Nunn A, et al. Cannabinoids for treatment of spasticity and other symptoms related to multiple sclerosis (CAMS study): multicentre randomised placebo-controlled trial. Lancet (London, England). 2003;362(9395):1517–26.CrossRef
13.
Zurück zum Zitat Thiele EA, Bebin EM, Bhathal H, Jansen FE, Kotulska K, Lawson JA, et al. Add-on cannabidiol treatment for drug-resistant seizures in tuberous sclerosis complex: a placebo-controlled randomized clinical trial. JAMA Neurol. 2021;78(3):285–92.
14.
Zurück zum Zitat Chagas MHN, Zuardi AW, Tumas V, Pena-Pereira MA, Sobreira ET, Bergamaschi MM, et al. Effects of cannabidiol in the treatment of patients with Parkinson’s disease: an exploratory double-blind trial. J Psychopharmacol. 2014;28(11):1088–98.PubMedCrossRef
15.
Zurück zum Zitat de Almeida CMO, Brito MMC, Bosaipo NB, Pimentel A V, Tumas V, Zuardi AW, et al. Cannabidiol for rapid eye movement sleep behavior disorder. Mov Disord. 2021;36(7):1711–5.
16.
Zurück zum Zitat de Faria SM, de Morais FD, Tumas V, Castro PC, Ponti MA, Hallak JEC, et al. Effects of acute cannabidiol administration on anxiety and tremors induced by a Simulated Public Speaking Test in patients with Parkinson’s disease. J Psychopharmacol. 2020;34(2):189–96.PubMedCrossRef
17.
Zurück zum Zitat Bergamaschi MM, Queiroz RHC, Chagas MHN, de Oliveira DCG, De Martinis BS, Kapczinski F, et al. Cannabidiol reduces the anxiety induced by simulated public speaking in treatment-naïve social phobia patients. Neuropsychopharmacology. 2011;36(6):1219–26.PubMedPubMedCentralCrossRef
18.
Zurück zum Zitat Crippa JAS, Derenusson GN, Ferrari TB, Wichert-Ana L, Duran FLS, Martin-Santos R, et al. Neural basis of anxiolytic effects of cannabidiol (CBD) in generalized social anxiety disorder: a preliminary report. J Psychopharmacol. 2011;25(1):121–30.PubMedCrossRef
19.
Zurück zum Zitat Freeman TP, Hindocha C, Baio G, Shaban NDC, Thomas EM, Astbury D, et al. Cannabidiol for the treatment of cannabis use disorder: a phase 2a, double-blind, placebo-controlled, randomised, adaptive Bayesian trial. Lancet Psychiatry. 2020;7(10):865–74.PubMedPubMedCentralCrossRef
20.
Zurück zum Zitat Hurd YL, Spriggs S, Alishayev J, Winkel G, Gurgov K, Kudrich C, et al. Cannabidiol for the reduction of cue-induced craving and anxiety in drug-abstinent individuals with heroin use disorder: a double-blind randomized placebo-controlled trial. Am J Psychiatry. 2019;176(11):911–22.PubMedCrossRef
21.
Zurück zum Zitat Masataka N. Anxiolytic effects of repeated cannabidiol treatment in teenagers with social anxiety disorders. Front Psychol. 2019;10:2466.
22.
Zurück zum Zitat Meneses-Gaya C, Crippa JA, Hallak JE, Miguel AQ, Laranjeira R, Bressan RA, et al. Cannabidiol for the treatment of crack-cocaine craving: an exploratory double-blind study. Rev Bras Psiquiatr. 2021;43(5):467–76.
23.
Zurück zum Zitat Malik Z, Bayman L, Valestin J, Rizvi-Toner A, Hashmi S, Schey R. Dronabinol increases pain threshold in patients with functional chest pain: a pilot double-blind placebo-controlled trial. Dis esophagus Off J Int Soc Dis Esophagus. 2017;30(2):1–8.
24.
Zurück zum Zitat Morgan CJA, Das RK, Joye A, Curran HV, Kamboj SK. Cannabidiol reduces cigarette consumption in tobacco smokers: preliminary findings. Addict Behav. 2013;38(9):2433–6.PubMedCrossRef
25.
Zurück zum Zitat O’Neill A, Wilson R, Blest-Hopley G, Annibale L, Colizzi M, Brammer M, et al. Normalization of mediotemporal and prefrontal activity, and mediotemporal-striatal connectivity, may underlie antipsychotic effects of cannabidiol in psychosis. Psychol Med. 2021;51(4):596–606.
26.
Zurück zum Zitat Boggs DL, Surti T, Gupta A, Gupta S, Niciu M, Pittman B, et al. The effects of cannabidiol (CBD) on cognition and symptoms in outpatients with chronic schizophrenia a randomized placebo controlled trial. Psychopharmacology. 2018;235(7):1923–32.PubMedCrossRef
27.
Zurück zum Zitat Hallak JEC, Machado-de-Sousa JP, Crippa JAS, Sanches RF, Trzesniak C, Chaves C, et al. Performance of schizophrenic patients in the Stroop Color Word Test and electrodermal responsiveness after acute administration of cannabidiol (CBD). Rev Bras Psiquiatr. 2010;32(1):56–61.PubMedCrossRef
28.
Zurück zum Zitat Leweke FM, Piomelli D, Pahlisch F, Muhl D, Gerth CW, Hoyer C, et al. Cannabidiol enhances anandamide signaling and alleviates psychotic symptoms of schizophrenia. Transl Psychiatry. 2012;2(3):e94.PubMedPubMedCentralCrossRef
29.
Zurück zum Zitat McGuire P, Robson P, Cubala WJ, Vasile D, Morrison PD, Barron R, et al. Cannabidiol (CBD) as an adjunctive therapy in schizophrenia: a multicenter randomized controlled trial. Am J Psychiatry. 2018;175(3):225–31.PubMedCrossRef
30.
Zurück zum Zitat Haney M, Malcolm RJ, Babalonis S, Nuzzo PA, Cooper ZD, Bedi G, et al. Oral cannabidiol does not alter the subjective, reinforcing or cardiovascular effects of smoked cannabis. Neuropsychopharmacology. 2016;41(8):1974–82.PubMedPubMedCentralCrossRef
31.
Zurück zum Zitat Hindocha C, Freeman T, Grabski M, Stroud J, Crudgington H, Davies A, et al. Cannabidiol reverses attentional bias to cigarette cues in a human experimental model of tobacco withdrawal. Biol Psychiatry. 2018;83(9):S235.CrossRef
32.
Zurück zum Zitat Mongeau-Pérusse V, Brissette S, Bruneau J, Conrod P, Dubreucq S, Gazil G, et al. Cannabidiol as a treatment for craving and relapse in individuals with cocaine use disorder: a randomized placebo-controlled trial. Addiction. 2021.
33.
Zurück zum Zitat Fallon MT, Albert Lux E, McQuade R, Rossetti S, Sanchez R, Sun W, et al. Sativex oromucosal spray as adjunctive therapy in advanced cancer patients with chronic pain unalleviated by optimized opioid therapy: two double-blind, randomized, placebo-controlled phase 3 studies. Br J Pain. 2017;11(3):119–33.PubMedPubMedCentralCrossRef
34.
Zurück zum Zitat Berman JS, Symonds C, Birch R. Efficacy of two cannabis based medicinal extracts for relief of central neuropathic pain from brachial plexus avulsion: results of a randomised controlled trial. Pain. 2004;112(3):299–306.PubMedCrossRef
35.
Zurück zum Zitat Lichtman AH, Lux EA, McQuade R, Rossetti S, Sanchez R, Sun W, et al. Results of a double-blind, randomized, placebo-controlled study of nabiximols oromucosal spray as an adjunctive therapy in advanced cancer patients with chronic uncontrolled pain. J Pain Symptom Manage. 2018;55(2):179-188.e1.PubMedCrossRef
36.
Zurück zum Zitat Lynch ME, Cesar-Rittenberg P, Hohmann AG. A double-blind, placebo-controlled, crossover pilot trial with extension using an oral mucosal cannabinoid extract for treatment of chemotherapy-induced neuropathic pain. J Pain Symptom Manage. 2014;47(1):166–73.PubMedCrossRef
37.
Zurück zum Zitat Portenoy RK, Ganae-Motan ED, Allende S, Yanagihara R, Shaiova L, Weinstein S, et al. Nabiximols for opioid-treated cancer patients with poorly-controlled chronic pain: a randomized, placebo-controlled, graded-dose trial. J pain. 2012;13(5):438–49.PubMedCrossRef
38.
Zurück zum Zitat Fairhurst C, Kumar R, Checketts D, Tayo B, Turner S. Efficacy and safety of nabiximols cannabinoid medicine for paediatric spasticity in cerebral palsy or traumatic brain injury: a randomized controlled trial. Dev Med Child Neurol. 2020;62(9):1031–9.PubMedCrossRef
39.
Zurück zum Zitat Selvarajah D, Gandhi R, Emery CJ, Tesfaye S. Randomized placebo-controlled double-blind clinical trial of cannabis-based medicinal product (Sativex) in painful diabetic neuropathy: depression is a major confounding factor. Diabetes Care. 2010;33(1):128–30.PubMedCrossRef
40.
Zurück zum Zitat Riva N, Mora G, Sorarù G, Lunetta C, Ferraro OE, Falzone Y, et al. Safety and efficacy of nabiximols on spasticity symptoms in patients with motor neuron disease (CANALS): a multicentre, double-blind, randomised, placebo-controlled, phase 2 trial. Lancet Neurol. 2019;18(2):155–64.PubMedCrossRef
41.
Zurück zum Zitat Collin C, Ehler E, Waberzinek G, Alsindi Z, Davies P, Powell K, et al. A double-blind, randomized, placebo-controlled, parallel-group study of Sativex, in subjects with symptoms of spasticity due to multiple sclerosis. Neurol Res. 2010;32(5):451–9.PubMedCrossRef
42.
Zurück zum Zitat Conte A, Bettolo CM, Onesti E, Frasca V, Iacovelli E, Gilio F, et al. Cannabinoid-induced effects on the nociceptive system: a neurophysiological study in patients with secondary progressive multiple sclerosis. Eur J Pain. 2009;13(5):472–7.PubMedCrossRef
43.
Zurück zum Zitat Langford RM, Mares J, Novotna A, Vachova M, Novakova I, Notcutt W, et al. A double-blind, randomized, placebo-controlled, parallel-group study of THC/CBD oromucosal spray in combination with the existing treatment regimen, in the relief of central neuropathic pain in patients with multiple sclerosis. J Neurol. 2013;260(4):984–97.PubMedCrossRef
44.
Zurück zum Zitat Leocani L, Nuara A, Houdayer E, Schiavetti I, Del Carro U, Amadio S, et al. Sativex(®) and clinical-neurophysiological measures of spasticity in progressive multiple sclerosis. J Neurol. 2015;262(11):2520–7.PubMedCrossRef
45.
Zurück zum Zitat Narang S, Gibson D, Wasan AD, Ross EL, Michna E, Nedeljkovic SS, et al. Efficacy of dronabinol as an adjuvant treatment for chronic pain patients on opioid therapy. J pain. 2008;9(3):254–64.PubMedCrossRef
46.
Zurück zum Zitat Markovà J, Essner U, Akmaz B, Marinelli M, Trompke C, Lentschat A, et al. Sativex(®) as add-on therapy vs. further optimized first-line ANTispastics (SAVANT) in resistant multiple sclerosis spasticity: a double-blind, placebo-controlled randomised clinical trial. Int J Neurosci. 2019;129(2):119–28.PubMedCrossRef
47.
Zurück zum Zitat Novotna A, Mares J, Ratcliffe S, Novakova I, Vachova M, Zapletalova O, et al. A randomized, double-blind, placebo-controlled, parallel-group, enriched-design study of nabiximols* (Sativex(®) ), as add-on therapy, in subjects with refractory spasticity caused by multiple sclerosis. Eur J Neurol. 2011;18(9):1122–31.PubMedCrossRef
48.
Zurück zum Zitat Rog DJ, Nurmikko TJ, Friede T, Young CA. Randomized, controlled trial of cannabis-based medicine in central pain in multiple sclerosis. Neurology. 2005;65(6):812–9.PubMedCrossRef
49.
Zurück zum Zitat Wade DT, Makela P, Robson P, House H, Bateman C. Do cannabis-based medicinal extracts have general or specific effects on symptoms in multiple sclerosis? A double-blind, randomized, placebo-controlled study on 160 patients. Mult Scler. 2004;10(4):434–41.PubMedCrossRef
50.
Zurück zum Zitat Nurmikko TJ, Serpell MG, Hoggart B, Toomey PJ, Morlion BJ, Haines D. Sativex successfully treats neuropathic pain characterised by allodynia: a randomised, double-blind, placebo-controlled clinical trial. Pain. 2007;133(1–3):210–20.PubMedCrossRef
51.
Zurück zum Zitat Serpell M, Ratcliffe S, Hovorka J, Schofield M, Taylor L, Lauder H, et al. A double-blind, randomized, placebo-controlled, parallel group study of THC/CBD spray in peripheral neuropathic pain treatment. Eur J Pain. 2014;18(7):999–1012.PubMedCrossRef
52.
Zurück zum Zitat Blake DR, Robson P, Ho M, Jubb RW, McCabe CS. Preliminary assessment of the efficacy, tolerability and safety of a cannabis-based medicine (Sativex) in the treatment of pain caused by rheumatoid arthritis. Rheumatology (Oxford). 2006;45(1):50–2.CrossRef
53.
Zurück zum Zitat Aragona M, Onesti E, Tomassini V, Conte A, Gupta S, Gilio F, et al. Psychopathological and cognitive effects of therapeutic cannabinoids in multiple clerosis: a double-blind, placebo controlled, crossover study. Clin Neuropharmacol. 2009;32(1):41–7.PubMedCrossRef
54.
Zurück zum Zitat Collin C, Davies P, Mutiboko IK, Ratcliffe S. Randomized controlled trial of cannabis-based medicine in spasticity caused by multiple sclerosis. Eur J Neurol. 2007;14(3):290–6.PubMedCrossRef
55.
Zurück zum Zitat De Blasiis P, Siani MF, Fullin A, Sansone M, Melone MAB, Sampaolo S, et al. Short and long term effects of Nabiximols on balance and walking assessed by 3D-gait analysis in people with Multiple Sclerosis and spasticity. Mult Scler Relat Disord. 2021;51:102805.
56.
Zurück zum Zitat Weizman L, Dayan L, Brill S, Nahman-Averbuch H, Hendler T, Jacob G, et al. Cannabis analgesia in chronic neuropathic pain is associated with altered brain connectivity. Neurology. 2018;91(14):e1285–94.PubMedPubMedCentralCrossRef
57.
Zurück zum Zitat Notcutt W, Langford R, Davies P, Ratcliffe S, Potts R. A placebo-controlled, parallel-group, randomized withdrawal study of subjects with symptoms of spasticity due to multiple sclerosis who are receiving long-term Sativex®(nabiximols). Mult Scler. 2012;18(2):219–28.PubMedCrossRef
58.
Zurück zum Zitat Vaney C, Heinzel-Gutenbrunner M, Jobin P, Tschopp F, Gattlen B, Hagen U, et al. Efficacy, safety and tolerability of an orally administered cannabis extract in the treatment of spasticity in patients with multiple sclerosis: a randomized, double-blind, placebo-controlled, crossover study. Mult Scler. 2004;10(4):417–24.PubMedCrossRef
59.
Zurück zum Zitat Duran M, Pérez E, Abanades S, Vidal X, Saura C, Majem M, et al. Preliminary efficacy and safety of an oromucosal standardized cannabis extract in chemotherapy-induced nausea and vomiting. Br J Clin Pharmacol. 2010;70(5):656–63.PubMedPubMedCentralCrossRef
60.
Zurück zum Zitat Grimison P, Mersiades A, Kirby A, Lintzeris N, Morton R, Haber P, et al. Oral THC:CBD cannabis extract for refractory chemotherapy-induced nausea and vomiting: a randomised, placebo-controlled, phase II crossover trial. Ann Oncol. 2020;31(11):1553–60.PubMedCrossRef
61.
Zurück zum Zitat Allsop DJ, Copeland J, Lintzeris N, Dunlop AJ, Montebello M, Sadler C, et al. Nabiximols as an agonist replacement therapy during cannabis withdrawal: a randomized clinical trial. JAMA Psychiat. 2014;71(3):281–91.CrossRef
62.
Zurück zum Zitat Trigo JM, Lagzdins D, Rehm J, Selby P, Gamaleddin I, Fischer B, et al. Effects of fixed or self-titrated dosages of Sativex on cannabis withdrawal and cravings. Drug Alcohol Depend. 2016;161:298–306.PubMedPubMedCentralCrossRef
63.
Zurück zum Zitat Trigo JM, Soliman A, Quilty LC, Fischer B, Rehm J, Selby P, et al. Nabiximols combined with motivational enhancement/cognitive behavioral therapy for the treatment of cannabis dependence: a pilot randomized clinical trial. PLoS One. 2018;13(1):e0190768.
64.
Zurück zum Zitat López-Sendón Moreno JL, García Caldentey J, Trigo Cubillo P, Ruiz Romero C, García Ribas G, Alonso Arias MAA, et al. A double-blind, randomized, cross-over, placebo-controlled, pilot trial with Sativex in Huntington’s disease. J Neurol. 2016;263(7):1390–400.PubMedCrossRef
65.
Zurück zum Zitat Kavia RBC, De Ridder D, Constantinescu CS, Stott CG, Fowler CJ. Randomized controlled trial of Sativex to treat detrusor overactivity in multiple sclerosis. Mult Scler. 2010;16(11):1349–59.PubMedCrossRef
66.
Zurück zum Zitat Cooper RE, Williams E, Seegobin S, Tye C, Kuntsi J, Asherson P. Cannabinoids in attention-deficit/hyperactivity disorder: a randomised-controlled trial. Eur Neuropsychopharmacol. 2017;27(8):795–808.PubMedCrossRef
67.
Zurück zum Zitat Hagenbach U, Luz S, Ghafoor N, Berger JM, Grotenhermen F, Brenneisen R, et al. The treatment of spasticity with Delta9-tetrahydrocannabinol in persons with spinal cord injury. Spinal Cord. 2007;45(8):551–62.PubMedCrossRef
68.
Zurück zum Zitat Lintzeris N, Bhardwaj A, Mills L, Dunlop A, Copeland J, McGregor I, et al. Nabiximols for the treatment of cannabis dependence: a randomized clinical trial. JAMA Intern Med. 2019;179(9):1242–53.PubMedPubMedCentralCrossRef
69.
Zurück zum Zitat Rintala DH, Fiess RN, Tan G, Holmes SA, Bruel BM. Effect of dronabinol on central neuropathic pain after spinal cord injury: a pilot study. Am J Phys Med Rehabil. 2010;89(10):840–8.PubMedCrossRef
70.
Zurück zum Zitat Killestein J, Hoogervorst ELJ, Reif M, Kalkers NF, Van Loenen AC, Staats PGM, et al. Safety, tolerability, and efficacy of orally administered cannabinoids in MS. Neurology. 2002;58(9):1404–7.PubMedCrossRef
71.
Zurück zum Zitat Ungerleider JT, Andyrsiak T, Fairbanks L, Ellison GW, Myers LW. Delta-9-THC in the treatment of spasticity associated with multiple sclerosis. Adv Alcohol Subst Abuse. 1987;7(1):39–50.PubMedCrossRef
72.
Zurück zum Zitat Zajicek J, Ball S, Wright D, Vickery J, Nunn A, Miller D, et al. Effect of dronabinol on progression in progressive multiple sclerosis (CUPID): a randomised, placebo-controlled trial. Lancet Neurol. 2013;12(9):857–65.PubMedPubMedCentralCrossRef
73.
Zurück zum Zitat Zadikoff C, Wadia PM, Miyasaki J, Chen R, Lang AE, So J, et al. Cannabinoid, CB1 agonists in cervical dystonia: failure in a phase IIa randomized controlled trial. Basal Ganglia. 2011;1(2):91–5.CrossRef
74.
Zurück zum Zitat Volicer L, Stelly M, Morris J, McLaughlin J, Volicer BJ. Effects of dronabinol on anorexia and disturbed behavior in patients with Alzheimer’s disease. Int J Geriatric Psychiatr. 1997;12:913–9 (US: John Wiley & Sons).CrossRef
75.
Zurück zum Zitat Weber M, Goldman B, Truniger S. Tetrahydrocannabinol (THC) for cramps in amyotrophic lateral sclerosis: a randomised, double-blind crossover trial. J Neurol Neurosurg Psychiatry. 2010;81(10):1135–40.PubMedCrossRef
76.
Zurück zum Zitat Brisbois TD, de Kock IH, Watanabe SM, Mirhosseini M, Lamoureux DC, Chasen M, et al. Delta-9-tetrahydrocannabinol may palliate altered chemosensory perception in cancer patients: results of a randomized, double-blind, placebo-controlled pilot trial. Ann Oncol Off J Eur Soc Med Oncol. 2011;22(9):2086–93.CrossRef
77.
Zurück zum Zitat Gilbert CJ, Ohly KV, Rosner G, Peters WP. Randomized, double-blind comparison of a prochlorperazine-based versus a metoclopramide-based antiemetic regimen in patients undergoing autologous bone marrow transplantation. Cancer. 1995;76(11):2330–7.PubMedCrossRef
78.
Zurück zum Zitat Jatoi A, Windschitl HE, Loprinzi CL, Sloan JA, Dakhil SR, Mailliard JA, et al. Dronabinol versus megestrol acetate versus combination therapy for cancer-associated anorexia: a North Central Cancer Treatment Group study. J Clin Oncol. 2002;20(2):567–73.PubMedCrossRef
79.
Zurück zum Zitat Meiri E, Jhangiani H, Vredenburgh JJ, Barbato LM, Carter FJ, Yang H-M, et al. Efficacy of dronabinol alone and in combination with ondansetron versus ondansetron alone for delayed chemotherapy-induced nausea and vomiting. Curr Med Res Opin. 2007;23(3):533–43.PubMedCrossRef
80.
Zurück zum Zitat Neidhart JA, Gagen MM, Wilson HE, Young DC. Comparative trial of the antiemetic effects of THC and haloperidol. J Clin Pharmacol. 1981;21(S1):38S-42S.PubMedCrossRef
81.
Zurück zum Zitat Orr LE, McKernan JF. Antiemetic effect of delta 9-tetrahydrocannabinol in chemotherapy-associated nausea and emesis as compared to placebo and compazine. J Clin Pharmacol. 1981;21(S1):76S-80S.PubMedCrossRef
82.
Zurück zum Zitat Sallan SE, Zinberg NE, Frei E 3rd. Antiemetic effect of delta-9-tetrahydrocannabinol in patients receiving cancer chemotherapy. N Engl J Med. 1975;293(16):795–7.PubMedCrossRef
83.
Zurück zum Zitat Sallan SE, Cronin C, Zelen M, Zinberg NE. Antiemetics in patients receiving chemotherapy for cancer: a randomized comparison of delta-9-tetrahydrocannabinol and prochlorperazine. N Engl J Med. 1980;302(3):135–8.PubMedCrossRef
84.
Zurück zum Zitat de Vries M, van Rijckevorsel DCM, Vissers KCP, Wilder-Smith OHG, van Goor H. Tetrahydrocannabinol does not reduce pain in patients with chronic abdominal pain in a phase 2 placebo-controlled study. Clin Gastroenterol Hepatol Off Clin Pract J Am Gastroenterol Assoc. 2017;15(7):1079-1086.e4.
85.
Zurück zum Zitat Strasser F, Luftner D, Possinger K, Ernst G, Ruhstaller T, Meissner W, et al. Comparison of orally administered cannabis extract and delta-9-tetrahydrocannabinol in treating patients with cancer-related anorexia-cachexia syndrome: a multicenter, phase III, randomized, double-blind, placebo-controlled clinical trial from the Cannab. J Clin Oncol. 2006;24(21):3394–400.PubMedCrossRef
86.
Zurück zum Zitat Ungerleider JT, Andrysiak T, Fairbanks L, Goodnight J, Sarna G, Jamison K. Cannabis and cancer chemotherapy: a comparison of oral delta-9-THC and prochlorperazine. Cancer. 1982;50(4):636–45.PubMedCrossRef
87.
Zurück zum Zitat Lane M, Vogel CL, Ferguson J, Krasnow S, Saiers JL, Hamm J, et al. Dronabinol and prochlorperazine in combination for treatment of cancer chemotherapy-induced nausea and vomiting. J Pain Symptom Manage. 1991;6(6):352–9.PubMedCrossRef
88.
Zurück zum Zitat Beal JE, Olson R, Laubenstein L, Morales JO, Bellman P, Yangco B, et al. Dronabinol as a treatment for anorexia associated with weight loss in patients with AIDS. J Pain Symptom Manage. 1995;10(2):89–97.PubMedCrossRef
89.
Zurück zum Zitat Haney M, Rabkin J, Gunderson E, Foltin RW. Dronabinol and marijuana in HIV(+) marijuana smokers: acute effects on caloric intake and mood. Psychopharmacology. 2005;181(1):170–8.PubMedCrossRef
90.
Zurück zum Zitat Haney M, Gunderson EW, Rabkin J, Hart CL, Vosburg SK, Comer SD, et al. Dronabinol and marijuana in HIV-positive marijuana smokers. Caloric intake, mood, and sleep. J Acquir Immune Defic Syndr. 2007;45(5):545–54.PubMedCrossRef
91.
Zurück zum Zitat Kleine-Brueggeney M, Greif R, Brenneisen R, Urwyler N, Stueber F, Theiler LG. Intravenous Delta-9-tetrahydrocannabinol to prevent postoperative nausea and vomiting: a randomized controlled trial. Anesth Analg. 2015;121(5):1157–64.PubMedCrossRef
92.
Zurück zum Zitat Budney AJ, Vandrey RG, Hughes JR, Moore BA, Bahrenburg B. Oral delta-9-tetrahydrocannabinol suppresses cannabis withdrawal symptoms. Vol. 86, Drug and Alcohol Dependence. Budney, Alan J.: 4301 W. Markham St., Slot 843, Little Rock, AR, US, 72206, ajbudney@uams.edu: Elsevier Science; 2007. p. 22–9.
93.
Zurück zum Zitat Lundahl LH, Greenwald MK. Effect of oral THC pretreatment on marijuana cue-induced responses in cannabis dependent volunteers. Drug Alcohol Depend. 2015;149:187–93.PubMedCrossRef
94.
Zurück zum Zitat Tomida I, Azuara-Blanco A, House H, Flint M, Pertwee RG, Robson PJ. Effect of sublingual application of cannabinoids on intraocular pressure: a pilot study. J Glaucoma. 2006;15(5):349–53.PubMedCrossRef
95.
Zurück zum Zitat de Vries M, Van Rijckevorsel DCM, Vissers KCP, Wilder-Smith OHG, Van Goor H. Single dose delta-9-tetrahydrocannabinol in chronic pancreatitis patients: analgesic efficacy, pharmacokinetics and tolerability. Br J Clin Pharmacol. 2016;81(3):525–37.PubMedPubMedCentralCrossRef
96.
Zurück zum Zitat Klooker TK, Leliefeld KEM, Van Den Wijngaard RM, Boeckxstaens GEE. The cannabinoid receptor agonist delta-9-tetrahydrocannabinol does not affect visceral sensitivity to rectal distension in healthy volunteers and IBS patients. Neurogastroenterol Motil. 2011;23(1):30–5, e2.PubMedCrossRef
97.
Zurück zum Zitat Freeman RM, Adekanmi O, Waterfield MR, Waterfield AE, Wright D, Zajicek J. The effect of cannabis on urge incontinence in patients with multiple sclerosis: a multicentre, randomised placebo-controlled trial (CAMS-LUTS). Int Urogynecol J Pelvic Floor Dysfunct. 2006;17(6):636–41.PubMedCrossRef
98.
Zurück zum Zitat Andries A, Frystyk J, Flyvbjerg A, Støving RK. Dronabinol in severe, enduring anorexia nervosa: a randomized controlled trial. Int J Eat Disord. 2014;47(1):18–23.PubMedCrossRef
99.
Zurück zum Zitat Andries A, Gram B, Støving RK. Effect of dronabinol therapy on physical activity in anorexia nervosa: a randomised, controlled trial. Eat Weight Disord. 2015;20(1):13–21.PubMedCrossRef
100.
Zurück zum Zitat Gross H, Ebert MH, Faden VB, Goldberg SC, Kaye WH, Caine ED, et al. A double-blind trial of delta 9-tetrahydrocannabinol in primary anorexia nervosa. J Clin Psychopharmacol. 1983;3(3):165–71.PubMedCrossRef
101.
Zurück zum Zitat Bisaga A, Sullivan MA, Glass A, Mishlen K, Pavlicova M, Haney M, et al. The effects of dronabinol during detoxification and the initiation of treatment with extended release naltrexone. Drug Alcohol Depend. 2015;154:38–45.PubMedPubMedCentralCrossRef
102.
Zurück zum Zitat Müller-Vahl KR, Koblenz A, Jöbges M, Kolbe H, Emrich HM, Schneider U. Influence of treatment of Tourette syndrome with delta9-tetrahydrocannabinol (delta9-THC) on neuropsychological performance. Pharmacopsychiatry. 2001;34(1):19–24.PubMedCrossRef
103.
Zurück zum Zitat Müller-Vahl KR, Schneider U, Koblenz A, Jöbges M, Kolbe H, Daldrup T, et al. Treatment of Tourette’s syndrome with Delta 9-tetrahydrocannabinol (THC): a randomized crossover trial. Pharmacopsychiatry. 2002;35(2):57–61.PubMedCrossRef
104.
Zurück zum Zitat Rabinak CA, Blanchette A, Zabik NL, Peters C, Marusak HA, Iadipaolo A, et al. Cannabinoid modulation of corticolimbic activation to threat in trauma-exposed adults: a preliminary study. Psychopharmacology. 2020;237(6):1813–26.PubMedPubMedCentralCrossRef
105.
Zurück zum Zitat van den Elsen GAH, Ahmed AIA, Verkes R-J, Feuth T, van der Marck MA, Olde Rikkert MGM. Tetrahydrocannabinol in behavioral disturbances in dementia: a crossover randomized controlled trial. Am J Geriatr Psychiatry. 2015;23(12):1214–24.PubMedCrossRef
106.
Zurück zum Zitat Wong BS, Camilleri M, Busciglio I, Carlson P, Szarka LA, Burton D, et al. Pharmacogenetic trial of a cannabinoid agonist shows reduced fasting colonic motility in patients with nonconstipated irritable bowel syndrome. Gastroenterology. 2011;141(5):1638–47.PubMedCrossRef
107.
Zurück zum Zitat van den Elsen GAH, Ahmed AIA, Verkes R-J, Kramers C, Feuth T, Rosenberg PB, et al. Tetrahydrocannabinol for neuropsychiatric symptoms in dementia: a randomized controlled trial. Neurology. 2015;84(23):2338–46.PubMedPubMedCentralCrossRef
108.
Zurück zum Zitat D’Souza DC, Abi-Saab WM, Madonick S, Forselius-Bielen K, Doersch A, Braley G, et al. Delta-9-tetrahydrocannabinol effects in schizophrenia: implications for cognition, psychosis, and addiction. Biol Psychiatry. 2005;57(6):594–608.PubMedCrossRef
109.
Zurück zum Zitat Carley DW, Prasad B, Reid KJ, Malkani R, Attarian H, Abbott SM, et al. Pharmacotherapy of apnea by cannabimimetic enhancement, the PACE clinical trial: Effects of dronabinol in obstructive sleep apnea. Sleep. 2018;41(1):zsx184.
110.
Zurück zum Zitat Levin FR, Mariani JJ, Brooks DJ, Pavlicova M, Cheng W, Nunes EV. Dronabinol for the treatment of cannabis dependence: a randomized, double-blind, placebo-controlled trial. Drug Alcohol Depend. 2011;116(1–3):142–50.PubMedPubMedCentralCrossRef
111.
Zurück zum Zitat Lofwall MR, Babalonis S, Nuzzo PA, Elayi SC, Walsh SL. Opioid withdrawal suppression efficacy of oral dronabinol in opioid dependent humans. Drug Alcohol Depend. 2016;164:143–50.PubMedPubMedCentralCrossRef
112.
Zurück zum Zitat Müller-Vahl KR, Schneider U, Prevedel H, Theloe K, Kolbe H, Daldrup T, et al. Delta 9-tetrahydrocannabinol (THC) is effective in the treatment of tics in Tourette syndrome: a 6-week randomized trial. J Clin Psychiatry. 2003;64(4):459–65.PubMedCrossRef
113.
Zurück zum Zitat Muller-Vahl KR, Prevedel H, Theloe K, Kolbe H, Emrich HM, Schneider U. Treatment of Tourette syndrome with delta-9-tetrahydrocannabinol (delta 9-THC): no influence on neuropsychological performance. Neuropsychopharmacology. 2003;28(2):384–8.PubMedCrossRef
114.
Zurück zum Zitat Herrmann N, Ruthirakuhan M, Gallagher D, Verhoeff NPLG, Kiss A, Black SE, et al. Randomized placebo-controlled trial of nabilone for agitation in Alzheimer’s disease. Am J Geriatr psychiatry Off J Am Assoc Geriatr Psychiatry. 2019;27(11):1161–73.CrossRef
115.
Zurück zum Zitat Cote M, Trudel M, Wang C, Fortin A. Improving quality of life with nabilone during radiotherapy treatments for head and neck cancers: a randomized double-blind placebo-controlled trial. Ann Otol Rhinol Laryngol. 2016;125(4 CC-ENT):317–24.PubMedCrossRef
116.
Zurück zum Zitat Turcott J, Guillen-Núñez MDR, Flores D, Oñate L, Zatarain-Barrón Z, Barrón F, et al. The effect of nabilone on appetite, nutritional status, and quality of life in lung cancer patients: a randomized, double-blind clinical trial. J Thorac Oncol. 2018;13(10):S360–1.CrossRef
117.
Zurück zum Zitat Ball S, Vickery J, Hobart J, Wright D, Green C, Shearer J, et al. The Cannabinoid Use in Progressive Inflammatory brain Disease (CUPID) trial: a randomised double-blind placebo-controlled parallel-group multicentre trial and economic evaluation of cannabinoids to slow progression in multiple sclerosis. Health Technol Assess. 2015;19(12):vii–viii (xxv--xxxi, 1--187).PubMedPubMedCentralCrossRef
118.
Zurück zum Zitat Toth C, Mawani S, Brady S, Chan C, Liu C, Mehina E, et al. An enriched-enrolment, randomized withdrawal, flexible-dose, double-blind, placebo-controlled, parallel assignment efficacy study of nabilone as adjuvant in the treatment of diabetic peripheral neuropathic pain. Pain. 2012;153(10):2073–82.PubMedCrossRef
119.
Zurück zum Zitat Skrabek RQ, Galimova L, Ethans K, Perry D. Nabilone for the treatment of pain in fibromyalgia. J pain. 2008;9(2):164–73.PubMedCrossRef
120.
Zurück zum Zitat Ware MA, Fitzcharles M-A, Joseph L, Shir Y. The effects of nabilone on sleep in fibromyalgia: results of a randomized controlled trial. Anesth Analg. 2010;110(2):604–10.PubMedCrossRef
121.
Zurück zum Zitat Pini LA, Guerzoni S, Cainazzo MM, Ferrari A, Sarchielli P, Tiraferri I, et al. Nabilone for the treatment of medication overuse headache: results of a preliminary double-blind, active-controlled, randomized trial. J Headache Pain. 2012;13(8):677–84.PubMedPubMedCentralCrossRef
122.
Zurück zum Zitat Turcotte D, Doupe M, Torabi M, Gomori A, Ethans K, Esfahani F, et al. Nabilone as an adjunctive to gabapentin for multiple sclerosis-induced neuropathic pain: a randomized controlled trial. Pain Med. 2015;16(1):149–59.PubMedCrossRef
123.
Zurück zum Zitat Frank B, Serpell MG, Hughes J, Matthews JNS, Kapur D. Comparison of analgesic effects and patient tolerability of nabilone and dihydrocodeine for chronic neuropathic pain: randomised, crossover, double blind study. BMJ. 2008;336(7637):199–201.PubMedPubMedCentralCrossRef
124.
Zurück zum Zitat Pinsger M, Schimetta W, Volc D, Hiermann E, Riederer F, Pölz W. Benefits of an add-on treatment with the synthetic cannabinomimetic nabilone on patients with chronic pain–a randomized controlled trial. Wien Klin Wochenschr. 2006;118(11–12):327–35.PubMedCrossRef
125.
Zurück zum Zitat Peball M, Krismer F, Knaus H-G, Djamshidian A, Werkmann M, Carbone F, et al. Non-motor symptoms in Parkinson’s disease are reduced by nabilone. Ann Neurol. 2020;88(4):712–22.PubMedPubMedCentralCrossRef
126.
Zurück zum Zitat Wissel J, Haydn T, Müller J, Brenneis C, Berger T, Poewe W, et al. Low dose treatment with the synthetic cannabinoid Nabilone significantly reduces spasticity-related pain : a double-blind placebo-controlled cross-over trial. J Neurol. 2006;253(10):1337–41.
127.
Zurück zum Zitat Pooyania S, Ethans K, Szturm T, Casey A, Perry D. A randomized, double-blinded, crossover pilot study assessing the effect of nabilone on spasticity in persons with spinal cord injury. Arch Phys Med Rehabil. 2010;91(5):703–7.PubMedCrossRef
128.
Zurück zum Zitat Schimrigk S, Marziniak M, Neubauer C, Kugler EM, Werner G, Abramov-Sommariva D. Dronabinol is a safe long-term treatment option for neuropathic pain patients. Eur Neurol. 2017;78(5–6):320–9.PubMedCrossRef
129.
Zurück zum Zitat Ahmedzai S, Carlyle DL, Calder IT, Moran F. Anti-emetic efficacy and toxicity of nabilone, a synthetic cannabinoid, in lung cancer chemotherapy. Br J Cancer. 1983;48(5 CC-SR-CANCER CC-Lung Cancer CC-Pain, Palliative and Supportive Care CC-Gynaecological, Neuro-oncology and Orphan Cancer):657–63.PubMedPubMedCentralCrossRef
130.
Zurück zum Zitat Chan HS, Correia JA, MacLeod SM. Nabilone versus prochlorperazine for control of cancer chemotherapy-induced emesis in children: a double-blind, crossover trial. Pediatrics. 1987;79(6):946–52.PubMed
131.
Zurück zum Zitat Crawford SM, Buckman R. Nabilone and metoclopramide in the treatment of nausea and vomiting due to cisplatinum: a double blind study. Med Oncol Tumor Pharmacother. 1986;3(1):39–42.PubMedCrossRef
132.
Zurück zum Zitat Dalzell AM, Bartlett H, Lilleyman JS. Nabilone: an alternative antiemetic for cancer chemotherapy. Arch Dis Child. 1986;61(5):502–5.PubMedPubMedCentralCrossRef
133.
Zurück zum Zitat Einhorn LH, Nagy C, Furnas B, Williams SD. Nabilone: an effective antiemetic in patients receiving cancer chemotherapy. J Clin Pharmacol. 1981;21(S1):64S-69S.PubMedCrossRef
134.
Zurück zum Zitat Johansson R, Kilkku P, Groenroos M. A double-blind, controlled trial of nabilone vs. prochlorperazine for refractory emesis induced by cancer chemotherapy. Cancer Treat Rev. 1982;9(Suppl B):25–33.PubMedCrossRef
135.
Zurück zum Zitat Niederle N, Schütte J, Schmidt CG. Crossover comparison of the antiemetic efficacy of nabilone and alizapride in patients with nonseminomatous testicular cancer receiving cisplatin therapy. Klin Wochenschr. 1986;64(8):362–5.PubMedCrossRef
136.
Zurück zum Zitat Niiranen A, Mattson K. A cross-over comparison of nabilone and prochlorperazine for emesis induced by cancer chemotherapy. Am J Clin Oncol. 1985;8(4):336–40.PubMedCrossRef
137.
Zurück zum Zitat Pomeroy M, Fennelly JJ, Towers M. Prospective randomized double-blind trial of nabilone versus domperidone in the treatment of cytotoxic-induced emesis. Cancer Chemother Pharmacol. 1986;17(3):285–8.PubMedCrossRef
138.
Zurück zum Zitat Priestman SG, Priestman TJ, Canney PA. A double-blind randomised cross-over comparison of nabilone and metoclopramide in the control of radiation-induced nausea. Clin Radiol. 1987;38(5):543–4.PubMedCrossRef
139.
Zurück zum Zitat Svendsen KB, Jensen TS, Bach FW. Does the cannabinoid dronabinol reduce central pain in multiple sclerosis? Randomised double blind placebo controlled crossover trial. BMJ. 2004;329(7460):253.PubMedPubMedCentralCrossRef
140.
Zurück zum Zitat Wada JK, Bogdon DL, Gunnell JC, Hum GJ, Gota CH, Rieth TE. Double-blind, randomized, crossover trial of nabilone vs placebo in cancer chemotherapy. Cancer Treat Rev. 1982;9(Suppl B):39–44.PubMedCrossRef
141.
Zurück zum Zitat Lewis IH, Campbell DN, Barrowcliffe MP. Effect of nabilone on nausea and vomiting after total abdominal hysterectomy. Br J Anaesth. 1994;73(2):244–6.PubMedCrossRef
142.
Zurück zum Zitat Levin DN, Dulberg Z, Chan A-W, Hare GMT, Mazer CD, Hong A. A randomized-controlled trial of nabilone for the prevention of acute postoperative nausea and vomiting in elective surgery. Can J Anesth. 2017;64(4):385–95.PubMedCrossRef
143.
Zurück zum Zitat Herrmann ES, Cooper ZD, Bedi G, Ramesh D, Reed SC, Comer SD, et al. Effects of zolpidem alone and in combination with nabilone on cannabis withdrawal and a laboratory model of relapse in cannabis users. Psychopharmacology. 2016;233(13):2469–78.PubMedPubMedCentralCrossRef
144.
Zurück zum Zitat Curtis A, Mitchell I, Patel S, Ives N, Rickards H. A pilot study using nabilone for symptomatic treatment in Huntington’s disease. Mov Disord. 2009;24(15):2254–9.PubMedCrossRef
145.
Zurück zum Zitat Fox SH, Kellett M, Moore AP, Crossman AR, Brotchie JM. Randomised, double-blind, placebo-controlled trial to assess the potential of cannabinoid receptor stimulation in the treatment of dystonia. Mov Disord. 2002;17(1):145–9.PubMedCrossRef
146.
Zurück zum Zitat Sieradzan KA, Fox SH, Hill M, Dick JP, Crossman AR, Brotchie JM. Cannabinoids reduce levodopa-induced dyskinesia in Parkinson’s disease: a pilot study. Neurology. 2001;57(11):2108–11.PubMedCrossRef
147.
Zurück zum Zitat Fabre LF, McLendon D. The efficacy and safety of nabilone (a synthetic cannabinoid) in the treatment of anxiety. J Clin Pharmacol. 1981;21(8–9 Suppl CC-Common Mental Disorders):377–82.CrossRef
148.
Zurück zum Zitat Glass RM, Uhlenhuth EH, Hartel FW, Schuster CR, Fischman MW. Single-dose study of nabilone in anxious volunteers. J Clin Pharmacol. 1981;21(S1):383S-396S.PubMedCrossRef
149.
Zurück zum Zitat Herrmann ES, Cooper ZD, Bedi G, Ramesh D, Reed SC, Comer SD, et al. Varenicline and nabilone in tobacco and cannabis co-users: effects on tobacco abstinence, withdrawal and a laboratory model of cannabis relapse. Addict Biol. 2019;24(4):765–76.PubMedCrossRef
150.
Zurück zum Zitat van Amerongen G, Kanhai K, Baakman AC, Heuberger J, Klaassen E, Beumer TL, et al. Effects on spasticity and neuropathic pain of an oral formulation of Δ9-tetrahydrocannabinol in patients with progressive multiple sclerosis. Clin Ther. 2018;40(9):1467–82.PubMedCrossRef
151.
Zurück zum Zitat Hill KP, Palastro MD, Gruber SA, Fitzmaurice GM, Greenfield SF, Lukas SE, et al. Nabilone pharmacotherapy for cannabis dependence: a randomized, controlled pilot study. Am J Addict. 2017;26(8):795–801.PubMedPubMedCentralCrossRef
152.
Zurück zum Zitat Jetly R, Heber A, Fraser G, Boisvert D. The efficacy of nabilone, a synthetic cannabinoid, in the treatment of PTSD-associated nightmares: a preliminary randomized, double-blind, placebo-controlled cross-over design study. Psychoneuroendocrinology. 2015;51:585–8.PubMedCrossRef
153.
Zurück zum Zitat Vela J, Dreyer L, Petersen K, Lars A, Duch K, Kristensen S. Cannabidiol treatment in hand osteoarthritis and psoriatic arthritis: a randomized, double-blind placebo-controlled trial. Pain. 2022;163(6):1206–14.
154.
Zurück zum Zitat Jadoon KA, Ratcliffe SH, Barrett DA, Thomas EL, Stott C, Bell JD, et al. Efficacy and safety of cannabidiol and tetrahydrocannabivarin on glycemic and lipid parameters in patients with type 2 diabetes: a randomized, double-blind, placebo-controlled, parallel group pilot study. Diabetes Care. 2016;39(10):1777–86.PubMedCrossRef
155.
Zurück zum Zitat Consroe P, Laguna J, Allender J, Snider S, Stern L, Sandyk R, et al. Controlled clinical trial of cannabidiol in Huntington’s disease. Pharmacol Biochem Behav. 1991;40(3):701–8.PubMedCrossRef
156.
Zurück zum Zitat Cunha JM, Carlini EA, Pereira AE, Ramos OL, Pimentel C, Gagliardi R, et al. Chronic administration of cannabidiol to healthy volunteers and epileptic patients. Pharmacology. 1980;21(3):175–85.PubMedCrossRef
157.
Zurück zum Zitat Devinsky O, Cross JH, Laux L, Marsh E, Miller I, Nabbout R, et al. Trial of cannabidiol for drug-resistant seizures in the dravet syndrome. N Engl J Med. 2017;376(21):2011–20.PubMedCrossRef
158.
Zurück zum Zitat Devinsky O, Patel AD, Cross JH, Villanueva V, Wirrell EC, Privitera M, et al. Effect of cannabidiol on drop seizures in the lennox–gastaut syndrome. N Engl J Med. 2018;378(20):1888–97.PubMedCrossRef
159.
Zurück zum Zitat Miller I, Scheffer IE, Gunning B, Sanchez-Carpintero R, Gil-Nagel A, Perry MS, et al. Dose-ranging effect of adjunctive oral cannabidiol vs placebo on convulsive seizure frequency in Dravet syndrome: a randomized clinical trial. JAMA Neurol. 2020;77(5):613–21.PubMedCrossRef
160.
Zurück zum Zitat Thiele EA, Marsh ED, French JA, Mazurkiewicz MB, Benbadis SR, Joshi C, et al. Cannabidiol in patients with seizures associated with Lennox-Gastaut syndrome (GWPCARE4): a randomised, double-blind, placebo-controlled phase 3 trial. Lancet. 2018;391(10125):1085–96.PubMedCrossRef
161.
Zurück zum Zitat Schimrigk S, Marziniak M, Neubauer C, Kugler EM, Werner G, Abramov-Sommariva D. Dronabinol is a safe long-term treatment option for neuropathic pain patients. Eur Neurol. 2017;78(5–6):320–9.PubMedCrossRef
162.
Zurück zum Zitat Turcott JG, Del RocíoGuillenNúñez M, Flores-Estrada D, Oñate-Ocaña LF, Zatarain-Barrón ZL, Barrón F, et al. The effect of nabilone on appetite, nutritional status, and quality of life in lung cancer patients: a randomized, double-blind clinical trial. Support care cancer Off J Multinatl Assoc Support Care Cancer. 2018;26(9):3029–38.
163.
Zurück zum Zitat Freeman TP, Craft S, Wilson J, Stylianou S, ElSohly M, Di Forti M, et al. Changes in delta-9-tetrahydrocannabinol (THC) and cannabidiol (CBD) concentrations in cannabis over time: systematic review and meta-analysis. Addiction . 2020.
164.
Zurück zum Zitat McGuire P, Robson P, Cubała W, Vasile D, Morrison P, Barron R, et al. A randomized controlled trial of cannabidiol in schizophrenia. Schizophr Bull. 2018;44:S27.PubMedCentralCrossRef
165.
Zurück zum Zitat Poyatos L, Pérez-Acevedo AP, Papaseit E, Pérez-Mañá C, Martin S, Hladun O, et al. Oral administration of cannabis and Δ-9-tetrahydrocannabinol (THC) preparations: a systematic review. Medicina (Kaunas). 2020;56(6):309.
166.
Zurück zum Zitat Furyk JS, Meek RA, Egerton‐Warburton D. Drugs for the treatment of nausea and vomiting in adults in the emergency department setting. Cochrane Database Syst Rev. 2015;(9):CD010106.
167.
Zurück zum Zitat Spanagel R, Bilbao A. Approved cannabinoids for medical purposes - comparative systematic review and meta-analysis for sleep and appetite. Neuropharmacology. 2021;196:108680.PubMedCrossRef
168.
Zurück zum Zitat Stockings E, Campbell G, Hall WD, Nielsen S, Zagic D, Rahman R, et al. Cannabis and cannabinoids for the treatment of people with chronic noncancer pain conditions: a systematic review and meta-analysis of controlled and observational studies. Pain. 2018;159(10):1932–54.PubMedCrossRef
169.
Zurück zum Zitat Higgins JPT Page MJ, Elbers RG, Sterne JAC. SJ. Chapter 8: Assessing risk of bias in a randomized trial. In: Higgins JPT, Thomas J, Chandler J, Cumpston M, Li T, Page MJ, Welch VA (editors) Cochrane Handbook for Systematic Reviews of Interventions version 62 (updated February 2021) Cochrane, 2021
170.
Zurück zum Zitat GRADEpro GDT. GRADEpro Guideline Development Tool [Software]. McMaster University, (developed by Evidence Prime, Inc.). 2012.
171.
Zurück zum Zitat Elbourne DR, Altman DG, Higgins JPT, Curtin F, Worthington HV, Vail A. Meta-analyses involving cross-over trials: methodological issues. Int J Epidemiol. 2002;31(1):140–9.PubMedCrossRef
172.
Zurück zum Zitat Schünemann H Guyatt G, Oxman A, editors. BJ. GRADE handbook for grading quality of evidence and strength of recommendations. Updated October 2013. The GRADE Working Group, 2013.
173.
Zurück zum Zitat Moher D, Liberati A, Tetzlaff J, Altman DG. Preferred reporting items for systematic reviews and meta-analyses: the PRISMA statement. J Clin Epidemiol. 2009;62(10):1006–12.PubMedCrossRef
174.
Zurück zum Zitat Bredt BM, Higuera-Alhino D, Shade SB, Hebert SJ, McCune JM, Abrams DI. Short-term effects of cannabinoids on immune phenotype and function in HIV-1-infected patients. J Clin Pharmacol. 2002;42(S1):82S-89S.PubMedCrossRef
175.
Zurück zum Zitat Brezing CA, Choi CJ, Pavlicova M, Brooks D, Mahony AL, Mariani JJ, et al. Abstinence and reduced frequency of use are associated with improvements in quality of life among treatment-seekers with cannabis use disorder. Am J Addict. 2018;27(2):101–7.PubMedPubMedCentralCrossRef
176.
Zurück zum Zitat Buggy DJ, Toogood L, Maric S, Sharpe P, Lambert DG, Rowbotham DJ. Lack of analgesic efficacy of oral delta-9-tetrahydrocannabinol in postoperative pain. Pain. 2003;106(1–2):169–72.PubMedCrossRef
177.
Zurück zum Zitat Chang AE, Shiling DJ, Stillman RC, Goldberg NH, Seipp CA, Barofsky I, et al. A prospective evaluation of delta-9-tetrahydrocannabinol as an antiemetic in patients receiving adriamycin and cytoxan chemotherapy. Cancer. 1981;47(7):1746–51.PubMedCrossRef
178.
Zurück zum Zitat Chang AE, Shiling DJ, Stillman RC, Goldberg NH, Seipp CA, Barofsky I, et al. Delata-9-tetrahydrocannabinol as an antiemetic in cancer patients receiving high-dose methotrexate. A prospective, randomized evaluation. Ann Intern Med. 1979;91(6):819–24.PubMedCrossRef
179.
Zurück zum Zitat Freeman D, Dunn G, Murray RM, Evans N, Lister R, Antley A, et al. How cannabis causes paranoia: using the intravenous administration of DELTA9-Tetrahydrocannabinol (THC) to identify key cognitive mechanisms leading to paranoia. Schizophr Bull. 2015;41(2 // (NIHR) *National Institute for Health Research*):391–9.PubMedCrossRef
180.
Zurück zum Zitat Haney M, Hart CL, Vosburg SK, Comer SD, Reed SC, Foltin RW. Effects of THC and lofexidine in a human laboratory model of marijuana withdrawal and relapse. Psychopharmacology. 2008;197(1):157–68.PubMedCrossRef
181.
Zurück zum Zitat Issa MA, Narang S, Jamison RN, Michna E, Edwards RR, Penetar DM, et al. The subjective psychoactive effects of oral dronabinol studied in a randomized, controlled crossover clinical trial for pain. Clin J Pain. 2014;30(6):472–8.PubMedPubMedCentralCrossRef
182.
Zurück zum Zitat Jansma JM, van Hell HH, Vanderschuren LJMJ, Bossong MG, Jager G, Kahn RS, et al. THC reduces the anticipatory nucleus accumbens response to reward in subjects with a nicotine addiction. Transl Psychiatry. 2013;3(2): e234.PubMedPubMedCentralCrossRef
183.
Zurück zum Zitat Jatoi A, Yamashita J, Sloan JA, Novotny PJ, Windschitl HE, Loprinzi CL. Does megestrol acetate down-regulate interleukin-6 in patients with cancer-associated anorexia and weight loss? A North Central Cancer Treatment Group investigation. Support Care Cancer. 2002;10(1):71–5.PubMedCrossRef
184.
Zurück zum Zitat Jicha CJ, Lofwall MR, Nuzzo PA, Babalonis S, Elayi SC, Walsh SL. Safety of oral dronabinol during opioid withdrawal in humans. Drug Alcohol Depend. 2015;157:179–83.PubMedPubMedCentralCrossRef
185.
Zurück zum Zitat Karschner EL, Darwin WD, Goodwin RS, Wright S, Huestis MA. Plasma cannabinoid pharmacokinetics following controlled oral delta9-tetrahydrocannabinol and oromucosal cannabis extract administration. Clin Chem. 2011;57(1):66–75.PubMedCrossRef
186.
Zurück zum Zitat Lane M, Smith FE, Sullivan RA, Plasse TF. Dronabinol and prochlorperazine alone and in combination as antiemetic agents for cancer chemotherapy. Am J Clin Oncol. 1990;13(6):480–4.PubMedCrossRef
187.
Zurück zum Zitat Levin FR, Mariani JJ, Pavlicova M, Brooks D, Glass A, Mahony A, et al. Dronabinol and lofexidine for cannabis use disorder: a randomized, double-blind, placebo-controlled trial. Drug Alcohol Depend. 2016;159:53–60.PubMedCrossRef
188.
Zurück zum Zitat McCabe M, Smith FP, Macdonald JS, Woolley PV, Goldberg D, Schein PS. Efficacy of tetrahydrocannabinol in patients refractory to standard antiemetic therapy. Invest New Drugs. 1988;6(3):243–6.PubMedCrossRef
189.
Zurück zum Zitat Merritt JC, Perry DD, Russell DN, Jones BF. Topical delta 9-tetrahydrocannabinol and aqueous dynamics in glaucoma. J Clin Pharmacol. 1981;21(S1):467S-471S.PubMedCrossRef
190.
Zurück zum Zitat Prasad B, Radulovacki MG, Carley DW. Proof of concept trial of dronabinol in obstructive sleep apnea. Vol. 4, Frontiers in Psychiatry. Carley, David W.: Department of Biobehavioral Health Science, University of Illinois at Chicago, 215W CON MC 802, 845 S Damen Ave, Chicago, IL, US, 60612, dwcarley@uic.edu: Frontiers Media S.A.; 2013.
191.
Zurück zum Zitat Reichenbach ZW, Sloan J, Rizvi-Toner A, Bayman L, Valestin J, Schey R. A 4-week pilot study with the cannabinoid receptor agonist dronabinol and its effect on metabolic parameters in a randomized trial. Clin Ther. 2015;37(10):2267–74.PubMedCrossRef
192.
Zurück zum Zitat Schlienz NJ, Cone EJ, Herrmann ES, Lembeck NA, Mitchell JM, Bigelow GE, et al. Pharmacokinetic characterization of 11-nor-9-carboxy-Δ9-tetrahydrocannabinol in urine following acute oral cannabis ingestion in healthy adults. J Anal Toxicol. 2018;42(4):232–47.PubMedCrossRef
193.
Zurück zum Zitat Ungerleider JT, Sarna G, Fairbanks LA, Goodnight J, Andrysiak T, Jamison K. THC or Compazine for the cancer chemotherapy patient–the UCLA study. Part II: Patient drug preference. Am J Clin Oncol. 1985;8(2):142–7.PubMedCrossRef
194.
Zurück zum Zitat Abrams DI, Hilton JF, Leiser RJ, Shade SB, Elbeik TA, Aweeka FT, et al. Short-term effects of cannabinoids in patients with HIV-1 infection: a randomized, placebo-controlled clinical trial. Ann Intern Med. 2003;139(4):258–66.PubMedCrossRef
195.
Zurück zum Zitat van den Elsen GA, Tobben L, Ahmed AI, Verkes RJ, Kramers C, Marijnissen RM, et al. Effects of tetrahydrocannabinol on balance and gait in patients with dementia: a randomised controlled crossover trial. J Psychopharmacol. 2017;31(2):184–91.PubMedCrossRef
196.
Zurück zum Zitat Wade DT, Robson P, House H, Makela P, Aram J. A preliminary controlled study to determine whether whole-plant cannabis extracts can improve intractable neurogenic symptoms. Clin Rehabil. 2003;17(1):21–9.PubMedCrossRef
197.
Zurück zum Zitat Wallace MS, Marcotte TD, Umlauf A, Gouaux B, Atkinson JH. Efficacy of inhaled cannabis on painful diabetic neuropathy. J pain. 2015;16(7):616–27.PubMedPubMedCentralCrossRef
198.
Zurück zum Zitat Wong BS, Camilleri M, Eckert D, Carlson P, Ryks M, Burton D, et al. Randomized pharmacodynamic and pharmacogenetic trial of dronabinol effects on colon transit in irritable bowel syndrome-diarrhea. Neurogastroenterol Motil. 2012;24(4):358-e169.PubMedPubMedCentralCrossRef
199.
Zurück zum Zitat Zajicek JP, Hobart JC, Slade A, Barnes D, Mattison PG. Multiple sclerosis and extract of cannabis: results of the MUSEC trial. J Neurol Neurosurg Psychiatry. 2012;83(11):1125–32.PubMedCrossRef
200.
Zurück zum Zitat Lile JA, Kelly TH, Hays LR. Separate and combined effects of the cannabinoid agonists nabilone and $Δ$9-THC in humans discriminating $Δ$9-THC. Drug Alcohol Depend. 2011;116(1–3):86–92.
201.
Zurück zum Zitat Williams CJ, Bolton A, de Pemberton R, Whitehouse JM. Antiemetics for patients treated with antitumor chemotherapy. Cancer Clin Trials. 1980;3(4):363–7.PubMed
202.
Zurück zum Zitat Bedi G, Cooper ZD, Haney M. Subjective, cognitive and cardiovascular dose-effect profile of nabilone and dronabinol in marijuana smokers. Addict Biol. 2013;18(5):872–81.PubMedCrossRef
203.
Zurück zum Zitat Cunningham D, Bradley CJ, Forrest GJ, Hutcheon AW, Adams L, Sneddon M, et al. A randomized trial of oral nabilone and prochlorperazine compared to intravenous metoclopramide and dexamethasone in the treatment of nausea and vomiting induced by chemotherapy regimens containing cisplatin or cisplatin analogues. Eur J Cancer Clin Oncol. 1988;24(4):685–9.PubMedCrossRef
204.
Zurück zum Zitat Cunningham D, Forrest GJ, Soukop M, Gilchrist NL, Calder IT, McArdle CS. Nabilone and prochlorperazine: a useful combination for emesis induced by cytotoxic drugs. Br Med J (Clin Res Ed). 1985;291(6499):864–5.CrossRef
205.
Zurück zum Zitat Almog S, Aharon-Peretz J, Vulfsons S, Ogintz M, Abalia H, Lupo T, et al. The pharmacokinetics, efficacy, and safety of a novel selective-dose cannabis inhaler in patients with chronic pain: a randomized, double-blinded, placebo-controlled trial. Eur J Pain. 2020;24(8):1505–16.PubMedPubMedCentralCrossRef
206.
Zurück zum Zitat Fraser GA. The use of a synthetic cannabinoid in the management of treatment-resistant nightmares in posttraumatic stress disorder (PTSD). Vol. 15, CNS Neuroscience & Therapeutics. Fraser, George A.: Operational Trauma and Stress Support Centre, Canadian Forces Health Services Centre, 1745 Alta Vista Drive, Ottawa, ON, Canada, K1A 0K6, fraser.ga2@forces.gc.ca: Wiley-Blackwell Publishing Ltd.; 2009. p. 84–8.
207.
Zurück zum Zitat Jones SE, Durant JR, Greco FA, Robertone A. A multi-institutional Phase III study of nabilone vs. placebo in chemotherapy-induced nausea and vomiting. Cancer Treat Rev. 1982;9(Suppl B):45–8.PubMedCrossRef
208.
Zurück zum Zitat Kalliomaki J, Philipp A, Baxendale J, Annas P, Karlsten R, Segerdahl M. Lack of effect of central nervous system-active doses of nabilone on capsaicin-induced pain and hyperalgesia. Clin Exp Pharmacol Physiol. 2012;39(4):336–42.PubMedCrossRef
209.
Zurück zum Zitat Kayser RR, Raskin M, Snorrason I, Hezel DM, Haney M, Simpson HB. Cannabinoid augmentation of exposure-based psychotherapy for obsessive-compulsive disorder. J Clin Psychopharmacol. 2020;40(2):207–10.PubMedPubMedCentralCrossRef
210.
Zurück zum Zitat Nakano S, Gillespie HK, Hollister LE. A model for evaluation of antianxiety drugs with the use of experimentally induced stress: comparison of nabilone and diazepam. Clin Pharmacol Ther. 1978;23(1):54–62.PubMedCrossRef
211.
Zurück zum Zitat Niiranen A, Mattson K. Antiemetic efficacy of nabilone and dexamethasone: a randomized study of patients with lung cancer receiving chemotherapy. Am J Clin Oncol. 1987;10(4):325–9.PubMedCrossRef
212.
Zurück zum Zitat Notcutt W, Price M, Miller R, Newport S, Phillips C, Simmons S, et al. Initial experiences with medicinal extracts of cannabis for chronic pain: results from 34 “N of 1” studies. Anaesthesia. 2004;59(5):440–52.PubMedCrossRef
213.
Zurück zum Zitat Peball M, Werkmann M, Ellmerer P, Stolz R, Valent D, Knaus H-G, et al. Nabilone for non-motor symptoms of Parkinson’s disease: a randomized placebo-controlled, double-blind, parallel-group, enriched enrolment randomized withdrawal study (The NMS-Nab Study). J Neural Transm. 2019;126(8):1061–72.PubMedCrossRef
214.
Zurück zum Zitat Steele N, Gralla RJ, Braun DWJ, Young CW. Double-blind comparison of the antiemetic effects of nabilone and prochlorperazine on chemotherapy-induced emesis. Cancer Treat Rep. 1980;64(2–3):219–24.PubMed
215.
Zurück zum Zitat Appiah-Kusi E, Petros N, Wilson R, Colizzi M, Bossong MG, Valmaggia L, et al. Effects of short-term cannabidiol treatment on response to social stress in subjects at clinical high risk of developing psychosis. Psychopharmacology. 2020;237(4):1121–30.PubMedPubMedCentralCrossRef
216.
Zurück zum Zitat Andries A, Frystyk J, Flyvbjerg A, Støving RK. Changes in IGF-I, urinary free cortisol and adipokines during dronabinol therapy in anorexia nervosa: results from a randomised, controlled trial. Growth Horm IGF Res. 2015;25(5):247–52.PubMedCrossRef
217.
Zurück zum Zitat Ben-Menachem E, Gunning B, Arenas Cabrera CM, VanLandingham K, Crockett J, Critchley D, et al. A phase II randomized trial to explore the potential for pharmacokinetic drug–drug interactions with stiripentol or valproate when combined with cannabidiol in patients with epilepsy. CNS Drugs. 2020;34(6):661–72.PubMedPubMedCentralCrossRef
218.
Zurück zum Zitat Bhattacharyya S, Wilson R, Appiah-Kusi E, O’Neill A, Brammer M, Perez J, et al. Effect of cannabidiol on medial temporal, midbrain, and striatal dysfunction in people at clinical high risk of psychosis: a randomized clinical trial. JAMA Psychiat. 2018;75(11):1107–17.CrossRef
219.
Zurück zum Zitat Birnbaum AK, Karanam A, Marino SE, Barkley CM, Remmel RP, Roslawski M, et al. Food effect on pharmacokinetics of cannabidiol oral capsules in adult patients with refractory epilepsy. Epilepsia. 2019;60(8):1586–92.PubMedCrossRef
220.
Zurück zum Zitat Bristot G, Hizo GH, Pinto JV, da Ponte FDR, Valiati FE, De Moura Silveira É, et al. P.369 Potential anti-inflammatory and antioxidant effects of cannabidiol in bipolar depression. Eur Neuropsychopharmacol. 2020;40:S212–3.CrossRef
221.
Zurück zum Zitat Davies C, Wilson R, Appiah-Kusi E, Blest-Hopley G, Brammer M, Perez J, et al. A single dose of cannabidiol modulates medial temporal and striatal function during fear processing in people at clinical high risk for psychosis. Transl Psychiatry. 2020;10(1):311.
222.
Zurück zum Zitat Devinsky O, Patel AD, Thiele EA, Wong MH, Appleton R, Harden CL, et al. Randomized, dose-ranging safety trial of cannabidiol in Dravet syndrome. Neurology. 2018;90(14):e1204–11.PubMedPubMedCentralCrossRef
223.
Zurück zum Zitat Efron D, Freeman JL, Cranswick N, Payne JM, Mulraney M, Prakash C, et al. A pilot randomised placebo-controlled trial of cannabidiol to reduce severe behavioural problems in children and adolescents with intellectual disability. Br J Clin Pharmacol. 2021;87(2):436–46.
224.
Zurück zum Zitat Good P, Haywood A, Gogna G, Martin J, Yates P, Greer R, et al. Oral medicinal cannabinoids to relieve symptom burden in the palliative care of patients with advanced cancer: a double-blind, placebo controlled, randomised clinical trial of efficacy and safety of cannabidiol (CBD). BMC Palliat Care. 2019;18(1):110.
225.
Zurück zum Zitat Hardy J, Haywood A, Gogna G, Martin J, Yates P, Greer R, et al. Oral medicinal cannabinoids to relieve symptom burden in the palliative care of patients with advanced cancer: a double-blind, placebo-controlled, randomised clinical trial of efficacy and safety of 1:1 delta-9-tetrahydrocannabinol (THC) and cannabidiol (CBD). Trials. 2020;21(1):611.
226.
Zurück zum Zitat Hindocha C, Freeman TP, Schafer G, Gardener C, Das RK, Morgan CJA, et al. Acute effects of delta-9-tetrahydrocannabinol, cannabidiol and their combination on facial emotion recognition: a randomised, double-blind, placebo-controlled study in cannabis users. Eur Neuropsychopharmacol. 2015;25(3):325–34.PubMedPubMedCentralCrossRef
227.
Zurück zum Zitat Attal N, Brasseur L, Guirimand D, Clermond-Gnamien S, Atlami S, Bouhassira D. Are oral cannabinoids safe and effective in refractory neuropathic pain? Vol. 8, European Journal of Pain. Bouhassira, D.: INSERM E-332, Centre d’Evaluation et de Traitement de la Douleur, Hopital Ambroise Pare, AP-HP, Boulogne-Billancourt, France, 92100, didier.bouhassira@apr.ap-hop-paris.fr: Elsevier Science; 2004. p. 173–7.
228.
Zurück zum Zitat Hundal H, Lister R, Evans N, Antley A, Englund A, Murray RM, et al. The effects of cannabidiol on persecutory ideation and anxiety in a high trait paranoid group. J Psychopharmacol. 2018;32(3):276–82.PubMedCrossRef
229.
Zurück zum Zitat Hussain SA, Dlugos DJ, Cilio MR, Parikh N, Oh A, Sankar R. Synthetic pharmaceutical grade cannabidiol for treatment of refractory infantile spasms: a multicenter phase-2 study. Epilepsy Behav. 2020;102:106826.
230.
Zurück zum Zitat Irving PM, Iqbal T, Nwokolo C, Subramanian S, Bloom S, Prasad N, et al. A randomized, double-blind, placebo-controlled, parallel-group, pilot study of cannabidiol-rich botanical extract in the symptomatic treatment of ulcerative colitis. Inflamm Bowel Dis. 2018;24(4):714–24.PubMedCrossRef
231.
Zurück zum Zitat Klein P, Tolbert D, Gidal BE. Drug–drug interactions and pharmacodynamics of concomitant clobazam and cannabidiol or stiripentol in refractory seizures. Epilepsy Behav. 2019;99:106459.
232.
Zurück zum Zitat Leweke FM, Rohleder C, Müller JK, Hirjak D, Meyer-Lindenberg A. Enhancing recovery in early schizophrenia by randomized controlled add-on of cannabidiol to an individualized antipsychotic treatment. Nervenheilkunde. 2018;37(5):319–23.CrossRef
233.
Zurück zum Zitat Müller-Vahl KR. Cannabinoids reduce symptoms of Tourette’s syndrome. Expert Opin Pharmacother. 2003;4(10):1717–25.PubMedCrossRef
234.
Zurück zum Zitat Naftali T, Mechulam R, Marii A, Gabay G, Stein A, Bronshtain M, et al. Low-dose cannabidiol is safe but not effective in the treatment for Crohn’s disease, a randomized controlled trial. Dig Dis Sci. 2017;62(6):1615–20.PubMedCrossRef
235.
Zurück zum Zitat Nitecka-Buchta A, Nowak-Wachol A, Wachol K, Walczyńska-Dragon K, Olczyk P, Batoryna O, et al. Myorelaxant effect of transdermal cannabidiol application in patients with TMD: a randomized, double-blind trial. J Clin Med. 2019;8(11):1886.
236.
Zurück zum Zitat Santos de Alencar S, Crippa JAS, Brito MCM, Pimentel ÂV, CecilioHallak JE, Tumas V. A single oral dose of cannabidiol did not reduce upper limb tremor in patients with essential tremor. Park Relat Disord. 2021;83:37–40.CrossRef
237.
Zurück zum Zitat Szaflarski JP, Hernando K, Bebin EM, Gaston TE, Grayson LE, Ampah SB, et al. Higher cannabidiol plasma levels are associated with better seizure response following treatment with a pharmaceutical grade cannabidiol. Epilepsy Behav. 2019;95:131–6.PubMedCrossRef
238.
Zurück zum Zitat Baker NL, Gray KM, Sherman BJ, Morella K, Sahlem GL, Wagner AM, et al. Biological correlates of self-reported new and continued abstinence in cannabis cessation treatment clinical trials. Vol. 187, Drug and Alcohol Dependence. Baker, Nathaniel L.: Department of Public Health Sciences, Medical University of South Carolina, 135 Cannon Street, Suite 303, Charleston, SC, US, 29425, bakern@musc.edu: Elsevier Science; 2018. p. 270–7.
239.
Zurück zum Zitat Szaflarski M, Hansen B, Bebin EM, Szaflarski JP. Social correlates of health status, quality of life, and mood states in patients treated with cannabidiol for epilepsy. Epilepsy Behav. 2017;70(Part B):364–9.PubMedCrossRef
240.
Zurück zum Zitat Thiele EA, Bebin EM, Filloux F, Kwan P, Loftus R, Sahebkar F, et al. Long-term safety and efficacy of add-on Cannabidiol (CBD) for treatment of seizures associated with tuberous sclerosis complex (TSC) in an open-label extension (OLE) trial (GWPCARE6). Dev Med Child Neurol. 2021;63(SUPPL 1):69.
241.
Zurück zum Zitat van Amsterdam J, Vervloet J, de Weert G, Buwalda VJA, Goudriaan AE, van den Brink W. Acceptance of pharmaceutical cannabis substitution by cannabis using patients with schizophrenia. Harm Reduct J. 2018;15(1):47.PubMedPubMedCentralCrossRef
242.
Zurück zum Zitat Wall MB, Pope R, Freeman TP, Kowalczyk OS, Demetriou L, Mokrysz C, et al. Dissociable effects of cannabis with and without cannabidiol on the human brain’s resting-state functional connectivity. J Psychopharmacol. 2019;33(7):822–30.PubMedCrossRef
243.
Zurück zum Zitat Wheless JW, Dlugos D, Miller I, Oh DA, Parikh N, Phillips S, et al. Pharmacokinetics and tolerability of multiple doses of pharmaceutical-grade synthetic cannabidiol in pediatric patients with treatment-resistant epilepsy. CNS Drugs. 2019;33(6):593–604.PubMedPubMedCentralCrossRef
244.
Zurück zum Zitat Wilson R, Bossong MG, Appiah-Kusi E, Petros N, Brammer M, Perez J, et al. Cannabidiol attenuates insular dysfunction during motivational salience processing in subjects at clinical high risk for psychosis. Transl Psychiatry. 2019;9(1):203.
245.
Zurück zum Zitat Winton-Brown TT, Allen P, Bhattacharrya S, Borgwardt SJ, Fusar-Poli P, Crippa JA, et al. Modulation of auditory and visual processing by delta-9- tetrahydrocannabinol and cannabidiol: An fMRI study. Neuropsychopharmacology. 2011;36(7):1340–8.PubMedPubMedCentralCrossRef
246.
Zurück zum Zitat Wright S, Duncombe P, Altman DG. Assessment of blinding to treatment allocation in studies of a cannabis-based medicine (Sativex®) in people with multiple sclerosis: a new approach. Trials. 2012;13:189.PubMedPubMedCentralCrossRef
247.
Zurück zum Zitat Xu DH, Cullen BD, Tang M, Fang Y. The effectiveness of topical cannabidiol oil in symptomatic relief of peripheral neuropathy of the lower extremities. Curr Pharm Biotechnol. 2020;21(5):390–402.PubMedCrossRef
248.
Zurück zum Zitat Centonze D, Mori F, Koch G, Buttari F, Codecà C, Rossi S, et al. Lack of effect of cannabis-based treatment on clinical and laboratory measures in multiple sclerosis. Vol. 30, Neurological Sciences. Centonze, Diego: Clinica Neurologica, Dipartimento di Neuroscienze, Universita Tor Vergata, Via Montpellier 1, Rome, Italy, 00133, centonze@uniroma2.it: Springer; 2009. p. 531–4.
249.
Zurück zum Zitat Bedi G, Foltin RW, Gunderson EW, Rabkin J, Hart CL, Comer SD, et al. Efficacy and tolerability of high-dose dronabinol maintenance in HIV-positive marijuana smokers: a controlled laboratory study. Vol. 212, Psychopharmacology. Haney, Margaret: Division on Substance Abuse, New York State Psychiatric Institute, 1051 Riverside Drive, Unit 120, New York, NY, US, 10032, mh235@columbia.edu: Springer; 2010. p. 675–86.
250.
Zurück zum Zitat Flachenecker P, Henze T, Zettl UK. Nabiximols (THC/CBD oromucosal spray, Sativex®) in clinical practice—results of a multicenter, non-interventional study (MOVE 2) in patients with multiple sclerosis spasticity. Vol. 71, European Neurology. Flachenecker, Peter: Neurologisches Reha-Zentrum Quellenhof Bad Wildbad, Kuranlagenallee 2, Bad Wildbad, Germany, DE 75323, peter.flachenecker@sana.de: Karger; 2014. p. 271–9.
251.
Zurück zum Zitat Haupts M, Vila C, Jonas A, Witte K, Álvarez-Ossorio L. Influence of previous failed antispasticity therapy on the efficacy and tolerability of THC:CBD oromucosal spray for multiple sclerosis spasticity. Eur Neurol. 2016;75(5–6):236–43.PubMedCrossRef
252.
Zurück zum Zitat Hindocha C, Freeman TP, Schafer G, Gardner C, Bloomfield MAP, Bramon E, et al. Acute effects of cannabinoids on addiction endophenotypes are moderated by genes encoding the CB1 receptor and FAAH enzyme. Addict Biol. 2020;25(3):e12762.
253.
Zurück zum Zitat Libzon S, Schleider LB-L, Saban N, Levit L, Tamari Y, Linder I, et al. Medical cannabis for pediatric moderate to severe complex motor disorders. J Child Neurol. 2018;33(9):565–71.PubMedCrossRef
254.
Zurück zum Zitat Lintzeris N, Mills L, Dunlop A, Copeland J, Mcgregor I, Bruno R, et al. Cannabis use in patients 3 months after ceasing nabiximols for the treatment of cannabis dependence: results from a placebo-controlled randomised trial. Drug Alcohol Depend. 2020;215:108220.
255.
Zurück zum Zitat Lus G, Cantello R, Danni MC, Rini A, Sarchielli P, Tassinari T, et al. Palatability and oral cavity tolerability of THC:CBD oromucosal spray and possible improvement measures in multiple sclerosis patients with resistant spasticity: a pilot study. Neurodegener Dis Manag. 2018;8(2):105–13.PubMedCrossRef
256.
Zurück zum Zitat Marinelli L, Balestrino M, Mori L, Puce L, Rosa GM, Giorello L, et al. A randomised controlled cross-over double-blind pilot study protocol on THC:CBD oromucosal spray efficacy as an add-on therapy for post-stroke spasticity. BMJ Open. 2017;7(9):e016843.
257.
Zurück zum Zitat Meuth SG, Henze T, Essner U, Trompke C, Vila Silván C. Tetrahydrocannabinol and cannabidiol oromucosal spray in resistant multiple sclerosis spasticity: Consistency of response across subgroups from the SAVANT randomized clinical trial. Vol. 130, International Journal of Neuroscience. Meuth, Sven G.: Department of Neurology, Institute of Translational Neurology, University Hospital Munster, Albert-Schweitzer-Campus 1, Gebaude A1, Munster, Germany, D-48149, sven.meuth@ukmuenster.de: Taylor & Francis; 2020. p. 1199–205.
258.
Zurück zum Zitat Naftali T, Bar-Lev Schleider L, Almog S, Meiri D, Konikoff FM. Oral CBD-rich cannabis induces clinical but not endoscopic response in patients with Crohn’s disease, a randomized controlled trial. J Crohns Colitis. 2021;15(11):1799–806.
259.
Zurück zum Zitat Schoedel KA, Chen N, Hilliard A, White L, Stott C, Russo E, et al. A randomized, double-blind, placebo-controlled, crossover study to evaluate the subjective abuse potential and cognitive effects of nabiximols oromucosal spray in subjects with a history of recreational cannabis use. Hum Psychopharmacol. 2011;26(3):224–36.PubMed
260.
Zurück zum Zitat Bonn-Miller MO, Sisley S, Riggs P, Yazar-Klosinski B, Wang JB, Loflin MJE, et al. The short-term impact of 3 smoked cannabis preparations versus placebo on PTSD symptoms: A randomized cross-over clinical trial. PLoS One. 2021;16(3 March):e0246990.
261.
Zurück zum Zitat Trigo JM, Soliman A, Staios G, Quilty L, Fischer B, George TP, et al. Sativex associated with behavioral-relapse prevention strategy as treatment for cannabis dependence: a case series. Vol. 10, Journal of Addiction Medicine. Le Foll, Bernard: Centre for Addiction and Mental Health, ON, Canada, bernard.lefoll@camh.ca: Lippincott Williams & Wilkins; 2016. p. 274–9.
262.
Zurück zum Zitat Van De Donk T, Niesters M, Kowal MA, Olofsen E, Dahan A, Van Velzen M. An experimental randomized study on the analgesic effects of pharmaceutical-grade cannabis in chronic pain patients with fibromyalgia. Pain. 2019;160(4):860–9.PubMedCrossRef
263.
Zurück zum Zitat Wade DT, Makela PM, House H, Bateman C, Robson P. Long-term use of a cannabis-based medicine in the treatment of spasticity and other symptoms in multiple sclerosis. Mult Scler. 2006;12(5):639–45.PubMedCrossRef
264.
Zurück zum Zitat Heinz A, Kiefer F, Smolka MN, Endrass T, Beste C, Beck A, et al. Addiction Research Consortium: losing and regaining control over drug intake (ReCoDe)-From trajectories to mechanisms and interventions. Addict Biol. 2020;25(2):e12866.PubMed

Kompaktes Leitlinien-Wissen Allgemeinmedizin (Link öffnet in neuem Fenster)

Mit medbee Pocketcards schnell und sicher entscheiden.
Leitlinien-Wissen kostenlos und immer griffbereit auf ihrem Desktop, Handy oder Tablet.

Neu im Fachgebiet Allgemeinmedizin

So gut hilft Botox gegen Nacken- und Gelenkschmerzen

Botulinumtoxin hat einen festen Stellenwert in der Schmerztherapie. Im Fachbereich Orthopädie wird das Nervengift unter anderem zur Schmerzlinderung bei Myogelosen und zunehmend bei Arthrosen eingesetzt. Die empirische Beweislage für diese Off-Label-Anwendungen ordnete die Schmerztherapeutin Julia Wölfle-Roos beim Ortho Trauma Update ein.

Plaques bei Frauen lassen kardiovaskuläres Risiko schon früh steigen

Frauen mit stabiler Angina pectoris haben zwar in der Regel seltener und auch weniger ausgedehnte koronare Plaques als Männer; dafür steigt bei ihnen das kardiovaskuläre Risiko bereits bei geringerer Plaquebelastung deutlich an, und zwar viel steiler als bei Männern.

GI-Blutung bei kardiovaskulärer Erkrankung: Wie geht es weiter?

Gastrointestinale Blutungen erhöhen die Mortalität von kardiovaskulär Erkrankten. Nach den Ergebnissen einer prospektiven Studie sind sie aber kein Grund, für längere Zeit auf Antithrombotika zu verzichten – im Gegenteil.

Beratung zu körperlichem Training kommt oft zu kurz

Bei einer Haushaltsbefragung in Deutschland gab nur gut ein Drittel der KHK-Patienten und -Patientinnen an, in der hausärztlichen Praxis umfassend zu körperlichem Training beraten worden zu sein. In manchen Personengruppen scheint das Thema besonders selten zur Sprache zu kommen.

EKG Essentials: EKG befunden mit System

In diesem CME-Kurs können Sie Ihr Wissen zur EKG-Befundung anhand von zwölf Video-Tutorials auffrischen und 10 CME-Punkte sammeln.
Praxisnah, relevant und mit vielen Tipps & Tricks vom Profi.

Update Allgemeinmedizin

Bestellen Sie unseren Fach-Newsletter und bleiben Sie gut informiert.

Bildnachweise
Die Leitlinien für Ärztinnen und Ärzte, Patientin und Arzt im Gespräch/© Guillem de Balanzó / stock.adobe.com, Gastrointestinale Blutung/© Springer Medizin, Mann beim Rehasport unterstützt von einer Frau/© Robert Kneschke / stock.adobe.com (Symbolbild mit Fotomodell), EKG befunden mit System - EKG Essential/© Springer Medizin Verlag GmbH