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Erschienen in: Dermatology and Therapy 6/2022

Open Access 11.05.2022 | Original Research

Real-World Effectiveness of Dupilumab in Atopic Dermatitis Patients: Analysis of an Electronic Medical Records Dataset

verfasst von: Lawrence F. Eichenfield, April Armstrong, Emma Guttman-Yassky, Peter A. Lio, Chi-Chang Chen, Dionne M. Hines, Catherine B. McGuiness, Sohini Ganguli, Dimittri Delevry, Debra Sierka, Usha G. Mallya

Erschienen in: Dermatology and Therapy | Ausgabe 6/2022

Abstract

Introduction

While the efficacy of dupilumab for the treatment of adults with moderate-to-severe atopic dermatitis (AD) has been demonstrated in several clinical trials, patients in such trials may not necessarily reflect the real-world clinical practice setting. This study evaluated the real-world effectiveness of dupilumab in adults with moderate-to-severe AD based on physician global assessment, percent body surface area affected, and patient-reported itch.

Methods

From Modernizing Medicine’s Electronic Medical Assistant dermatology-specific electronic medical records, adults (≥ 18 years) were identified with a diagnosis of AD and ≥ 1 dupilumab prescription (index event) between 1 April 2017 and 31 January 2019. Three cohorts were identified based on 3-month pre-index (1) Investigator Global Assessment (IGA) score ≥ 3, (2) an itch severity numerical rating scale (NRS) score ≥ 3, and (3) body surface area (BSA) affected ≥ 10%. Changes from pre-index on the outcome within each cohort were evaluated at 4 months post-index. Patients were also stratified for evaluation of outcomes by baseline demographic (sex, age) and prior AD treatments (topical therapy only or no treatment, any systemic therapy).

Results

More than 70% of the 435 AD patients with baseline IGA score ≥ 3 improved to an IGA score of ≤ 2 at month 4 post-dupilumab initiation, including 42.8% who achieved IGA 0/1 (clear/minimal). Among 112 patients with a pre-index itch severity NRS ≥ 3, scores were reduced from mean (SD) 7.0 (2.4) pre-index to 2.8 (2.8) at month 4 (p < 0.0001); 70.5% of patients had a reduction ≥ 3 points. In the BSA cohort (n = 387), affected BSA was significantly reduced from a pre-index mean (SD) of 39.3% (26.1%) to 16.3% (21.2%) at month 4 (p < 0.0001). Significant improvements in IGA, itch NRS, and BSA were observed regardless of demographic (age and sex) or clinical characteristics such as treatment history (all p < 0.0001 compared with pre-index).

Conclusions

Consistent with outcomes observed in clinical trials, patients treated with dupilumab in real-world clinical settings achieved clinically meaningful improvements in severity and extent of AD and severity of itch comparable to those reported in clinical trials at a similar time point.
Key Summary Points
Why carry out this study?
The efficacy of dupilumab for treatment of adults with moderate-to-severe atopic dermatitis has been demonstrated in clinical trials, but results from real-world clinical practice can additionally confirm the benefits of treatment.
What was learned from the study?
Enrolled patients had moderate-to-severe atopic dermatitis based on thresholds for clinician-assessed Investigator Global Assessment and body surface area affected, and patient-reported itch severity.
Regardless of prior treatment history, patients initiated on dupilumab in real-world clinical settings achieved clinically meaningful improvements in severity and extent of atopic dermatitis (Investigator Global Assessment, body surface area affected) and itch severity that were comparable to those reported in clinical trials at a similar time point.

Introduction

Interleukins 4 (IL-4) and 13 (IL-13) are key drivers of type 2 immune responses that contribute to the pathogenesis of atopic dermatitis (AD) [1]. Dupilumab is a fully human monoclonal antibody that blocks the shared receptor component for interleukin (IL)-4 and IL-13 and modulates the downstream pathways regulated by these cytokines [2, 3]. Dupilumab is approved in the USA (Dupixent) for patients aged ≥ 6 years with moderate-to-severe AD not adequately controlled with topical therapies, as add-on maintenance treatment in patients ≥ 12 years with moderate-to-severe asthma with an eosinophilic phenotype or oral corticosteroid-dependent asthma, and as add-on maintenance treatment in adults with inadequately controlled chronic rhinosinusitis with nasal polyposis [4]. The efficacy of dupilumab for the treatment of AD has been demonstrated in several clinical trials in patients with moderate-to-severe AD. Those trials showed that dupilumab not only reduced the clinical signs and symptoms of AD and improved patient-reported outcomes relative to placebo [511] but also resulted in clinically relevant effects on disease biomarkers and reversal of AD-associated epidermal abnormalities [12, 13]. However, patients in clinical trials may not necessarily reflect the patient population likely to be treated in routine clinical practice. Thus, it is important to evaluate the real-world effectiveness of treatment and to determine whether the effects observed in the clinical setting support those reported in clinical trials. Several real-world studies have reported on the effectiveness of dupilumab [1427], but these studies either evaluated small populations or were from a limited number of study sites.
Electronic medical records (EMR) are increasingly being utilized as a source of real-world data for large populations. The purpose of the current analysis is to evaluate the real-world effectiveness of dupilumab in adults with moderate-to-severe AD over a time period comparable to that of dupilumab clinical trials, using a large, dermatology-specific structured EMR database and clinically relevant outcomes of clinician assessment of global AD severity, percentage body surface area affected, and patient-reported itch severity.

Methods

Data source

Data for this retrospective observational study were derived from Modernizing Medicine’s Electronic Medical Assistant (EMA) dermatology-specific EMR database. This database is the most widely used dermatology-specific EMR platform in the USA, containing structured, real-world data from over 30% of US dermatologists. All patient-level data were fully anonymized to ensure confidentiality and compliance with the Health Insurance Portability and Accountability Act of 1996 (HIPAA).
Use of dermatology-specific EMR enables extraction of AD assessments, where available, including severity using the six-point Investigator Global Assessment scale (IGA; 0 = clear to 5 = very severe), and itch severity, which was assessed using a numerical rating scale (NRS) based on the question “How intense is your itching, 0 being no itch, 10 being the most severe itch possible?” Information on percent of body surface area (BSA) affected is also available in the database. These measures were used for both identification of cohorts and for evaluation of effectiveness.

Study populations

From the EMR database, patients were identified who had a diagnosis of AD (ICD-10 codes L20.0, L20.81, L20.82, L20.83, L20.84, L20.89, L20.9) and received ≥ 1 dupilumab prescription(s) between 1 April 2017 and 31 January 2019 (representing the initial approval in adults); the date of the first dupilumab prescription was defined as the index date, and patients were required to be ≥ 18 years of age at index. The study period was from 1 April 2016 to 31 May 2019 to capture outcomes assessment at 12 months pre-index (baseline) and 4 months post-index, defined as 120–149 days after the initial prescription. For inclusion in the analysis, patients were required to have IGA, itch severity NRS, and BSA recorded in the EMR within 3 months pre-index and any time during the 120–149-day post-index period. Inclusion criteria were based on availability of the outcomes independent of whether the patient discontinued treatment, since they had to have at least one treatment with dupilumab, i.e., treatment was initiated during the specified time frame. From this population, three cohorts were identified for analysis based on the most recently recorded IGA, itch severity NRS, and BSA scores within the 3-month pre-index period: (1) patients with moderate-to-severe AD defined as IGA ≥ 3, (2) patients with moderate-to-severe itch, defined as NRS score ≥ 3 [28], and (3) patients with BSA ≥ 10%.

Effectiveness

Effectiveness was evaluated based on changes from baseline at 4 months post-index on the IGA, itch severity NRS, and BSA scores in the three populations, respectively. The proportion of patients with post-index IGA 0/1 was determined, as was the proportion of patients with IGA scores ≥ 1 and ≥ 2 points lower than baseline; a change ≥ 1 point has been considered to be clinically relevant [29, 30]. Similarly, for the itch severity NRS, in addition to the mean change in score, the proportion of patients who improved by a ≥ 3-point reduction in score from baseline was determined, as were the proportions of patients with post-index scores stratified by itch severity strata of 0–3 (mild), 4–6 (moderate), and 7–10 (severe) [28]; severity strata were used rather than NRS scores because data cells with ≤ 5 patients in the Modernizing Medicine’s EMR database are masked to ensure patient privacy. A ≥ 3-point reduction can be considered clinically meaningful based on empirically derived thresholds from a similar NRS [31].
Effectiveness in the cohorts was further evaluated among patients stratified by treatment history during the baseline period, and sex and age. Two distinct treatment history strata were defined: one stratum consisted of patients with either a history of topical therapy only (topical corticosteroids, topical calcineurin inhibitors, and phosphodiesterase 4 inhibitor) or no treatment, and the other stratum consisted of those who had history of use of any systemic therapy (systemic corticosteroids, immunosuppressants, and phototherapy). Age strata were 18–34 years, 35–54 years, and ≥ 55 years.
In the BSA cohort, patients were stratified by quartiles of BSA affected (10%–25%, 26%–50%, 51%–75%, and 76%–100%).

Statistical analysis

Results were analyzed descriptively, with mean and standard deviation (SD) generated as measures for continuous variables, and count (frequency) and percentages generated for categorical variables. Statistical comparisons of changes in severity of AD and itch outcomes from pre- and post-index were performed using two-sided paired t-tests or Wilcoxon signed-rank tests at 0.05 significance level. The mean percent change in itch severity NRS score was derived from the percent change calculated across the individual patients. For BSA quartiles, least-squares (LS) mean change from baseline and 95% confidence intervals (95% CI) were estimated using analysis of covariance (ANCOVA) adjusted for age, gender, baseline IGA, and binary baseline therapies of interest (topical corticosteroids; topical calcineurin inhibitors; PDE-4 inhibitors; systemic steroids; immunosuppressants); confidence intervals that do not include 0 would map to p < 0.05.
All analyses were conducted using SAS version 9.4 (SAS Institute, Cary, NC).

Results

Cohort characteristics

From an initial population of 1,446,601 patients identified with AD, 22,914 were initiated on dupilumab during the study period. Among these patients who met the inclusion criteria of age ≥ 18 years, and were eligible for subgroup analysis based on Modernizing Medicine’s EMR patient privacy criteria (n = 21,408), the identified cohorts, which partially overlapped, included 435 patients with IGA ≥ 3 (mean [SD] age 47.4 [18.4] years, 48.3% male, 49.4% white), 112 patients with NRS ≥ 3 (mean [SD] age 48.7 [17.3] years, 50.0% male, 40.5% white), and 387 patients with BSA ≥ 10% (mean [SD] age 45.5 [17.8] years, 48.6% male, 44.4% white) (Table 1). These three cohorts served as the final dataset for analysis.
Table 1
Demographic and clinical characteristics
Variable
Baseline IGA ≥ 3
(n = 435)
Baseline NRS ≥ 3
(n = 112)
Baseline BSA ≥ 10 (n = 387)
Age, years, mean (SD)
47.4 (18.4)
48.7 (17.3)
45.5 (17.8)
Age distribution, n (%)
   
 18–34 years
133 (30.6)
25 (22.3)
128 (33.1)
 35–44 years
55 (12.6)
23 (20.5)
61 (15.8)
 45–54 years
79 (18.2)
17 (15.2)
63 (16.3)
 55–64 years
89 (20.5)
28 (25.0)
73 (18.9)
  ≥ 65 years
79 (18.2)
19 (17.0)
62 (16.0)
Sex, n (%)
   
 Male
210 (48.3)
56 (50.0)
188 (48.6)
 Female
225 (51.7)
56 (50.0)
199 (51.4)
Race, n (%)
   
 White
215 (49.4)
45 (40.5)
172 (44.4)
 African American
38 (8.7)
9 (8.1)
34 (8.8)
 Asian
31 (7.1)
8 (7.2)
24 (6.2)
 Other/unknown
151 (34.7)
50 (44.6)
157 (40.6)
Geographic region, n (%)
   
 Northeast
83 (19.1)
23 (20.5)
41 (10.6)
 Midwest
58 (13.3)
18 (16.1)
66 (17.1)
 South
207 (47.6)
44 (39.3)
162 (41.9)
 West
87 (20.0)
27 (24.1)
118 (30.5)
 Body surface area, %, mean (SD) [n]
37.2 (26.5) [361]
38.8 (26.8) [60]
39.3 (26.1) [387]
Atopic comorbidities, n (%)
   
 Asthma
137 (31.5)
31 (27.7)
96 (24.8)
 Allergic rhinitis
124 (28.5)
28 (25.0)
96 (24.8)
Other AD-related comorbidities, n (%)
   
 Skin infections
88 (20.2)
30 (26.8)
61 (15.8)
Treatment history, n (%)a
   
 No treatment
66 (15.2)
10 (8.9)
78 (20.2)
 Topical corticosteroids
335 (77.0)
93 (83.0)
280 (72.4)
 Topical calcineurin inhibitors
130 (29.9)
33 (29.5)
122 (31.5)
 Phosphodiesterase 4 inhibitor
92 (21.2)
29 (25.9)
78 (20.2)
 Systemic steroids
184 (42.3)
50 (44.6)
150 (38.8)
 Systemic immunosuppressantsb
66 (15.2)
14 (12.5)
48 (12.4)
 Phototherapy
30 (6.9)
7 (6.3)
25 (6.5)
BSA body surface area, NRS itch severity numerical rating scale, PGA Physician Global Assessment, SD standard deviation
aPercentages exceed 100% since some patients had a history of multiple therapies
bSystemic immunosuppressants include mycophenolate, azathioprine, cyclosporine, and methotrexate
Topical corticosteroids were the most widely used therapy prior to the index date (77.0%, 83.0%, and 72.4% in the IGA, NRS, and BSA cohorts, respectively) followed by systemic steroids (42.3%, 44.6%, and 38.8%, respectively) (Table 1). A history of systemic immunosuppressants was observed in 15.2%, 12.5%, and 12.4% of the IGA, NRS, and BSA cohorts, respectively.

Change in AD severity

At baseline in the IGA ≥ 3 cohort, 41.6% and 58.4% had IGA scores of 3 (moderate) and 4/5 (severe/very severe) AD, respectively (Fig. 1). At month 4 after initiation of dupilumab, disease severity was reduced in the majority of patients in the cohort with baseline IGA ≥ 3 as indicated by differences in the distribution of patients across the IGA scores post-index relative to pre-index (Fig. 1). Among these patients, 72.0% improved to an IGA score of ≤ 2 post-dupilumab initiation, including 42.8% who achieved IGA 0/1 (clear/minimal). A reduction in score ≥ 1 point from baseline was observed in 81.8% of patients, and almost two-thirds (62.8%) had a reduction of ≥ 2 points.
When stratified by history of treatment, patterns of improvement in AD severity were comparable to that observed among all patients with baseline IGA score ≥ 3 (Fig. 1); 44.2% of those who used topical corticosteroids only or no therapy and 41.5% of those who used systemic therapy achieved a score of 0/1. Additionally, the proportions of these patients with reductions in IGA scores ≥ 1 and ≥ 2 points reflected that of the overall population (Table 2). Similar effectiveness with regard to proportions of patients with post-index IGA score 0/1 and ≥ 1- and ≥ 2-point reductions in IGA scores were also observed across all strata regardless of sex and age (Table 2), with these proportions comparable to that observed in the total population.
Table 2
Atopic dermatitis severity, assessed using the Investigator Global Assessment (IGA) at 4 months after initiating treatment with dupilumab (index event), among patients with pre-index IGA score ≥ 3 by clinical and demographic characteristics
Population
Number (%) of patients post-index
IGA score 0/1
 ≥ 1-point reduction in IGA score
 ≥ 2-point reduction in IGA score
Treatment history
   
 Topical therapy only or no treatment (n = 206)a
91 (44.2)
167 (81.1)
133 (64.6)
 Any systemic therapy (n = 229)b
95 (41.5)
189 (82.5)
140 (61.1)
Sex
   
 Male (n = 210)
84 (40.0)
166 (79.1)
124 (59.1)
 Female (n = 225)
102 (45.3)
190 (84.4)
149 (66.2)
Age
   
 18–34 years (n = 133)
52 (39.1)
109 (82.0)
83 (62.4)
 35–54 years (n = 134)
54 (40.3)
107 (79.9)
83 (61.9)
  ≥ 55 years (n = 168)
80 (47.6)
140 (83.3)
107 (63.7)
aIncludes topical corticosteroids, topical calcineurin inhibitors, and phosphodiesterase 4 inhibitor
bIncludes systemic corticosteroids, immunosuppressants, and phototherapy

Change in itch severity

In the total cohort of patients with a baseline itch severity NRS score ≥ 3, the mean (SD) pre-index score, 7.0 (2.4), was significantly reduced to 2.8 (2.8) (p < 0.0001) at 4 months after initiation of dupilumab therapy (Table 3); the mean percent change in score showed a reduction of 54.9%. This reduction was driven by a shift in distribution from higher severity levels during the pre-index period, with 70.5% reporting scores in the “mild range” at month 4 (Fig. 2), including almost one-quarter of the patients (24.1%) with no itch.
Table 3
Itch severity numerical rating scale (itch NRS) scores before and at 4 months after initiating treatment with dupilumab (index event)
Population
Pre-index NRS score, mean (SD)
Post-index NRS score, mean (SD)
Change, mean (SD)
Percent change, mean (SD)
Post-index reduction ≥ 3 points, n (%)
All patients with pre-index NRS ≥ 3 (n = 112)
7.0 (2.4)
2.8 (2.8)
 –4.2 (3.6)*
54.9 (55.4)
79 (70.5)
Patients with pre-index NRS ≥ 3 by treatment history
 Topical therapy only or no treatment (n = 51)a
6.7 (2.3)
2.8 (3.1)
 –3.9 (4.1)*
50.1 (72.8)
36 (70.6)
 Any systemic therapy (n = 61)b
7.2 (2.5)
2.8 (2.5)
 –4.4 (3.1)*
58.8 (35.2)
43 (70.5)
Patients with pre-index NRS ≥ 3 by sex
 Male (n = 56)
7.0 (2.4)
3.1 (3.1)
 –3.8 (3.7)*
51.3 (58.0)
39 (69.6)
 Female (n = 56)
7.0 (2.5)
2.5 (2.4)
 –4.6 (3.5)*
58.4 (53.0)
40 (71.4)
Patients with pre-index NRS ≥ 3 by age group
 18–34 years (n = 25)
6.5 (2.3)
2.8 (2.4)
 –3.6 (2.5)*
58.3 (36.2)
18 (72.0)
 35–54 years (n = 40)
7.3 (2.6)
2.5 (2.8)
 –4.9 (4.2)*
53.1 (74.2)
29 (72.5)
  ≥ 55 years (n = 47)
7.0 (2.4)
3.0 (3.0)
 –3.9 (3.4)*
54.5 (45.3)
32 (68.1)
IGA Investigator Global Assessment
aIncludes topical corticosteroids, topical calcineurin inhibitors, and phosphodiesterase 4 inhibitor
bIncludes systemic corticosteroids, immunosuppressants, and phototherapy
*p < 0.0001
Across demographic and clinical strata, the mean change in NRS score from pre- to post-index ranged from −3.6 to −4.9 points (Table 3). Additionally, 70.5% of patients in the overall cohort had a pre- to post-index decrease ≥ 3 points, and these proportions ranged from 68.1% to 72.5% across age, sex, and treatment history strata (Table 3).

Change in body surface area affected

As shown in Table 4, there was a significant reduction in BSA from a pre-index mean (SD) of 39.3% (26.1%) to 16.3% (21.2%) at month 4 post-index (p < 0.0001), with similar reductions observed when stratified by age, sex, and treatment history (all p < 0.0001). When stratified by baseline BSA quartile (Fig. 3), the LS mean change from baseline was higher with increasing quartile, and ranged from  –4.4% (95% CI  –8.9%, 0.2%) for patients in the 10–25% quartile to  –60.9% (95% CI  –68.1%,  –53.7%) for patients in the 76–100% quartile.
Table 4
Body surface area (BSA) affected before and at 4 months after initiating treatment with dupilumab (index event)
Population
Pre-index BSA, mean (SD)
Post-index BSA, mean (SD)
Absolute change, mean (SD)
All patients with pre-index BSA ≥ 10% (n = 387)
39.3 (26.1)
16.3 (21.2)
 –23.0 (28.1)*
Patients with pre-index BSA ≥ 10% by treatment history
 Topical therapy only or no treatment (n = 203)a
38.3 (25.9)
17.5 (22.9)
 –20.8 (28.3)*
 Any systemic therapy (n = 184)b
40.3 (26.4)
14.9 (19.2)
 –25.4 (27.7)*
Patients with pre-index BSA ≥ 10% by sex
 Male (n = 188)
40.8 (25.9)
18.2 (22.8)
 –22.6 (29.0)*
 Female (n = 199)
37.8 (26.3)
14.4 (19.5)
 –23.4 (27.2)*
Patients with pre-index BSA ≥ 10% by age group
 18–34 years (n = 128)
43.5 (27.8)
16.5 (21.5)
 –27.1 (30.1)*
 35–54 years (n = 124)
34.4 (26.0)
18.1 (23.1)
 –16.3 (27.9)*
  ≥ 55 years (n = 135)
39.7 (24.0)
14.4 (19.0)
 –25.3 (25.2)*
aIncludes topical corticosteroids, topical calcineurin inhibitors, and phosphodiesterase 4 inhibitor
bIncludes systemic corticosteroids, immunosuppressants, and phototherapy
*p < 0.0001

Discussion

This study, through its use of a dermatology-specific EMR database to identify cohorts of patients defined as having moderate-to-severe AD based on established severity thresholds, adds to the expanding body of evidence supporting the effectiveness of dupilumab in the real-world clinical setting. Evaluation of dupilumab treatment outcomes was from both the clinician’s perspective using a global severity assessment (IGA) and an objective assessment of BSA, and the patient’s perspective based on the hallmark symptom of itch. Furthermore, the analyses included stratification by treatment history, with evaluation conducted at a time point that allowed for comparison with clinical trial data. On all outcomes, the results showed that the majority of patients achieved benefits after initiation of dupilumab therapy that were statistically significant, clinically meaningful, and consistent with improvements in AD observed at similar time points in the dupilumab clinical trials [5, 7, 911] and other real-world studies [1424, 26].
IGA is a relevant efficacy endpoint in clinical trials as it considers global physician assessment of disease and may be less cumbersome than multi-item measures [32]. In the IGA cohort, 59.1–66.2% of patients had a ≥ 2-point reduction in score, which resulted in substantial proportions of the patients achieving an IGA score of clear or minimal AD (39.1–47.6%) regardless of strata and 42.8% overall. These proportions may be considered comparable to what was observed in phase 3 clinical trials, which used a combined endpoint of IGA 0/1 plus a ≥ 2-point reduction in score, and reported that 36–40% of patients met this endpoint after 16 weeks of dupilumab treatment [7, 9, 10]. It should be noted that the IGA in dupilumab clinical trials was based on a 0–4-point scale rather than the 0–5-point scale in this study. However, the additional discrimination associated with the wider scale was related to expansion of scores representing severe (4) and very severe (5), and thus patients at higher severity required a greater point reduction to achieve IGA 0/1 in this analysis compared with clinical trials. The IGA has been reported in few real-world studies, with proportions of patients who achieved a clear/minimal score ranging from 38% to 60% within 3–4 months after dupilumab initiation [18, 33, 34], although the study populations were small.
Both the absolute and percent reduction in itch severity were substantial, and 68.1–72.5% of patients across age, sex, and treatment history strata had a clinically meaningful improvement of ≥ 3 points. These effects of dupilumab on itch are consistent with what has been reported after 16 weeks of dupilumab treatment in phase 3 clinical trials with regard to magnitude of reduction (44.3–56.2%) and clinical relevance (47–66% of patients with reductions ≥ 3 points) [7, 9, 10]. Importantly, the observed effects of dupilumab in reducing AD severity and itch were independent of sex and age, and appeared to be comparable regardless of treatment history.
The BSA affected by AD was also significantly reduced in the post-index period after initiation of dupilumab therapy. Notably, patients who had a higher percentage of BSA affected at baseline were characterized by greater absolute reductions. However, it should also be noted that the change in the lowest quartile may reflect a floor effect with regard to baseline, since these patients may have had less room for improvement. As with the other outcomes, improvements in BSA were similar regardless of demographic characteristics and treatment history.
Interpretation of these results should consider several study limitations, including that certain data elements, such as those evaluated in this study, are optional fields in EMRs and may not be populated at each visit for all patients. Consequently, only a small proportion of patients had these outcomes recorded in the EMR prior to and after the initiation of dupilumab therapy. In this regard, the absence of multi-item measures such as the Eczema Area and Severity Index (EASI) or Scoring of Atopic Dermatitis (SCORAD) may also be considered a limitation, but since these measures are time consuming, they are infrequently used in daily clinical practice and are even less likely to be captured in EMR than the ones reported in this study. These limitations further suggest that more routine recording in the EMR of AD severity from the clinician and patient perspectives should be encouraged as part of regular clinical visits. Assessment of itch severity in dupilumab clinical trials was the average of daily scores for a week, whereas a single time point was used in the current analysis. Treatment exposure was based on prescription orders, and whether the prescription was actually filled and appropriately used by the patient could not be confirmed. However, the use of an intention-to-treat approach provided a conservative estimate of real-world dupilumab effectiveness. While information on treatment history was available, concomitant medication use throughout the study period was not captured. Nevertheless, this analysis showed that substantial and clinically relevant improvements from baseline were observed at the post-index assessment after initiation of dupilumab.

Conclusions

The results of this study largely corroborate the findings from the dupilumab clinical trial program. These results showed that, in adults with moderate-to-severe AD treated with dupilumab in routine clinical practice, significant and clinically meaningful improvements in clinician-assessed global AD severity were consistently achieved by the majority of patients, with significant and substantial reductions in patient-reported itch severity as well as in BSA affected. These improvements included substantial proportions of patients achieving clear/minimal AD and no or mild itch, comparable to improvements seen in dupilumab clinical trials.

Acknowledgements

Funding

This study was funded by Regeneron Pharmaceuticals, Inc. and Sanofi. The Rapid Service Fee for this article was funded by Regeneron Pharmaceuticals, Inc. and Sanofi. The study sponsors participated in the study design collection, analysis, and interpretation of data; writing of the report; and the decision to submit the article for publication.

Medical Writing and Editorial Assistance

Medical writing support was provided by E. Jay Bienen, PhD, and was funded by Regeneron Pharmaceuticals, Inc and Sanofi.

Authorship

All named authors meet the International Committee of Medical Journal Editors (ICMJE) criteria for authorship for this article, take responsibility for the integrity of the work as a whole, and have given their approval for this version to be published.

Author Contributions

All named authors (Lawrence F. Eichenfield, April Armstrong, Emma Guttman-Yassky, Peter A. Lio, Chi-Chang Chen, Dionne M. Hines, Catherine B. McGuiness, Sohini Ganguli, Dimittri Delevry, Debra Sierka, and Usha G. Mallya) contributed to the conception and design of the study, data analysis and interpretation, and drafting and revising of the manuscript for important intellectual content. All named authors approved the final version of the manuscript and agree to be accountable for all aspects of the work.

Prior Presentation

This work was previously presented in part at the 24th World Congress of Dermatology (June 10–15, 2019) and the Society for Investigative Dermatology Annual Meeting (May 8–11, 2019).

Disclosures

Lawrence F. Eichenfield has received honoraria for consulting services from Almirall, Celgene, Dermira, Dermavant, Eli Lilly and Company, Forté Biosciences, Galderma, Incyte, Glenmark, Leo Pharmaceuticals, Otsuka, Novartis, Pfizer, Regeneron Pharmaceuticals, Inc., Sanofi Genzyme, and Valeant/Ortho Dermatologics; and study support (to institution) from AbbVie, Dermira, Dermavant, Eli Lilly and Company, Galderma, Incyte, Pfizer, Regeneron Pharmaceuticals, Inc., Sanofi Genzyme, and Ortho Dermatologics. April Armstrong has received consultancy honoraria from AbbVie, Amgen, Eli Lilly, Janssen, Merck, Novartis, and Pfizer; research funding from AbbVie, Eli Lilly and Janssen; and speaker honoraria from AbbVie. Emma Guttman-Yassky has acted as a consultant for and received grants/honoraria from AbbVie, Anacor, Celgene, Celsus Therapeutics, Dermira, Galderma, Glenmark, Janssen Biotech, LEO Pharmaceuticals MedImmune, Novartis, Pfizer, Regeneron Pharmaceuticals, Inc., Sanofi, Stiefel/GlaxoSmithKline, Vitae, Mitsubishi Tanabe, Eli Lilly, Asana Biosciences, Kiowa Kirin; has acted as an investigator for Celgene, Glenmark, Leo Pharmaceuticals, MedImmune, Regeneron Pharmaceuticals, Inc., Eli Lilly; and has participated in advisory boards for Celgene, Celsus Therapeutics, Dermira, Galderma, Glenmark, MedImmune, Novartis, Pfizer, Regeneron Pharmaceuticals, Inc., Sanofi, Stiefel/GlaxoSmithKline, Vitae and Asana Biosciences. Peter A. Lio reports research grants/funding from Regeneron/Sanofi Genzyme, and Abbvie; is on the speaker's bureau for Regeneron/Sanofi Genzyme, Pfizer, and Galderma; reports consulting/advisory boards for UCB, Dermavant, Regeneron/Sanofi Genzyme, Dermira, Pfizer, LEO Pharmaceuticals, AbbVie, Kiniksa, Eli Lilly, Menlo Therapeutics, Galderma, IntraDerm, Exeltis, Realm Therapeutics. Chi-Chang Chen, Dionne M. Hines, and Catherine B. McGuiness are employees of IQVIA, which received funding from Regeneron and Sanofi to conduct the study. Debra Sierka is an employee and stockholder of Sanofi. Sohini Ganguli and Usha G. Mallya were employees and stockholders of Sanofi at the time of study. Dimittri Delevry is an employee and stockholder of Regeneron.

Compliance with Ethics Guidelines

Since the study did not involve the collection, use, or transmittal of individual identifiable data, Institutional Review Board approval was not required.

Data Availability

Not available; data are proprietary.
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Metadaten
Titel
Real-World Effectiveness of Dupilumab in Atopic Dermatitis Patients: Analysis of an Electronic Medical Records Dataset
verfasst von
Lawrence F. Eichenfield
April Armstrong
Emma Guttman-Yassky
Peter A. Lio
Chi-Chang Chen
Dionne M. Hines
Catherine B. McGuiness
Sohini Ganguli
Dimittri Delevry
Debra Sierka
Usha G. Mallya
Publikationsdatum
11.05.2022
Verlag
Springer Healthcare
Erschienen in
Dermatology and Therapy / Ausgabe 6/2022
Print ISSN: 2193-8210
Elektronische ISSN: 2190-9172
DOI
https://doi.org/10.1007/s13555-022-00731-z

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