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05.10.2018 | Original Research

Screening for Adverse Drug Events: a Randomized Trial of Automated Calls Coupled with Phone-Based Pharmacist Counseling

Zeitschrift:
Journal of General Internal Medicine
Autoren:
MD Gordon D. Schiff, SM Elissa Klinger, PharmD Alejandra Salazar, BA Jeffrey Medoff, PharmD Mary G. Amato, PhD E. John Orav, MS Shimon Shaykevich, PharmD Enrique V. Seoane, BA Lake Walsh, BA, BS Theresa E. Fuller, RN, PhD, MA Patricia C. Dykes, MD, MSc David W. Bates, MD, MSPH Jennifer S. Haas
Wichtige Hinweise

Electronic supplementary material

The online version of this article (https://​doi.​org/​10.​1007/​s11606-018-4672-7) contains supplementary material, which is available to authorized users.

Abstract

Background

Medication adverse events are important and common yet are often not identified by clinicians. We evaluated an automated telephone surveillance system coupled with transfer to a live pharmacist to screen potentially drug-related symptoms after newly starting medications for four common primary care conditions: hypertension, diabetes, depression, and insomnia.

Methods

Cluster randomized trial with automated calls to eligible patients at 1 and 4 months after starting target drugs from intervention primary care clinics compared to propensity-matched patients from control clinics. Primary and secondary outcomes were physician documentation of any adverse effects associated with newly prescribed target medication, and whether the medication was discontinued and, if yes, whether the reason for stopping was an adverse effect.

Results

Of 4876 eligible intervention clinic patients who were contacted using automated calls, 776 (15.1%) responded and participated in the automated call. Based on positive symptom responses or request to speak to a pharmacist, 320 patients were transferred to the pharmacist and discussed 1021 potentially drug-related symptoms. Of these, 188 (18.5%) were assessed as probably and 479 (47.1%) as possibly related to the medication. Compared to a propensity-matched cohort of control clinic patients, intervention patients were significantly more likely to have adverse effects documented in the medical record by a physician (277 vs. 164 adverse effects, p < 0.0001, and 177 vs. 122 patients discontinued with documented adverse effects, p < 0.0001).

Discussion

Systematic automated telephone outreach monitoring coupled with real-time phone referral to a pharmacist identified a substantial number of previously unidentified potentially drug-related symptoms, many of which were validated as probably or possibly related to the drug by the pharmacist or their physicians. Multiple challenges were encountered using the interactive voice response (IVR) automated calling system, suggesting that other approaches may need to be considered and evaluated.

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Zusatzmaterial
ESM 1 (PDF 76 kb)
11606_2018_4672_MOESM1_ESM.pdf
Literatur
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