Reduction of Low-value Prescribing Through Audit and Feedback
AFFAP
AFFAP Trial: The Comparative Evaluation of Audit and Feedback-based De-implementation Strategies to Reduce Low-value Prescribing in Primary Care in Patients Over 65 Years of Age.
7 other identifiers
interventional
540
1 country
1
Brief Summary
The objective is to estimate the effect attributable to a primary care pharmacist-led audit and feedback (AF) strategy compared to the currently used AF strategy as a management tool to evaluate healthcare performance focusing on processes and outcomes, for reducing the rate of patients over 65 years of age with potentially inappropriate prescribing (PIP) of benzodiazepines, proton pump inhibitors and opioids. A closed-cohort stepped-wedge cluster-randomised trial will be conducted in nine PC centres from Barakaldo-Sestao Integrated Health Organization, Basque Health Service (Osakidetza). All health centre clusters will start under the control condition, and at each step, some three centres will be randomly assigned to crossover to the intervention, under which they will be exposed to an additional component of AF, namely, primary care pharmacist-led facilitation. Mixed-methods analysis will be performed, gathering quantitative data to assess the results of the implementations at health centre and clinician levels, and qualitative data to assess the feasibility and perceived impact of the de-implementation strategies from the clinicians' perspective, and explore the experience and satisfaction of patients regarding the healthcare received. This study will provide useful knowledge on the effect attributable to a more intensive AF strategy (facilitated AF) compared to standard procedures of AF reports, and of the characteristics of AF that are most effective.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Feb 2026
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
December 17, 2025
CompletedFirst Posted
Study publicly available on registry
January 13, 2026
CompletedStudy Start
First participant enrolled
February 1, 2026
CompletedPrimary Completion
Last participant's last visit for primary outcome
May 1, 2027
ExpectedStudy Completion
Last participant's last visit for all outcomes
November 1, 2027
January 13, 2026
December 1, 2025
1.2 years
December 17, 2025
December 30, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Primary effectiveness: Proportion of patients with deprescribing or tapering of any of the PIP
proportion of patients for whom appropriateness is achieved, either through deprescribing or tapering (for example, dose reduction) of any of the drugs potentially inappropriately prescribed in the patients included in the clusters.
From baseline to 16 months
Secondary Outcomes (5)
Secondary effectiveness: Proportion of patients with deprescribing or tapering for each PIP
From baseline to 16 months
Secondary Effectiveness: Rate of new PIP
From baseline to 16 months
Adoption: Percentage of General Practitioners who agree to receive the active components of the strategies
From baseline to 16 months
Degree of implementation fidelity
From baseline to 16 months
General Practitioners´ perception of the feasibility and acceptability
From baseline to 22 months
Study Arms (2)
Control
ACTIVE COMPARATORAll health centre clusters will start under the control condition
Intervention
EXPERIMENTALAt each step, three centres will be randomly assigned to crossover to the intervention
Interventions
The strategy currently used as a management tool to evaluate healthcare performance focusing on processes and outcomes, as part of Osakidetza's operating contract: provision of AF, sent to PC centres every 4 months with data on overall rates of PIP, lists of patients over 65 years old who have a potentially inappropriate prescription of at least one of the drugs of interest, and provision of support materials related to appropriate prescribing and recommendations on deprescribing.
Based on a facilitation component delivered by PC pharmacy staff. Specifically, the PC pharmacists will conduct a facilitation session with the centre's clinicians in which they will review the magnitude of PIP in the centre (PIP rates), appropriateness/inappropriateness criteria, and guidelines to encourage deprescribing, and draw up an action plan at clinician and centre levels.
Eligibility Criteria
You may qualify if:
- collaboration is achieved from at least 51% of the General Practitioners (GP) or at least 4 GPs
- At least 60 patients aged 65 years or older on at least one of the drugs of interest that may be potentially inappropriately prescribed
You may not qualify if:
- N/A
- PATIENTS ASSIGNED TO THE PARTICIPATING PC CENTERS:
- Patients over 65 years of age with any of the following unsuitability criteria:
- PIP of benzodiazepines: patients on benzodiazepines for more than 3 months
- PIP of proton pump inhibitors: patients on proton pump inhibitors for more than 8 weeks without a diagnosed gastrointestinal disease and with no long-term prescription of gastrotoxic drugs.
- PIP of opioids: patients on opioids for non-cancer pain for more than 3 months.
- Patients who, in the opinion of the general practitioner, are not suitable candidates for tapering or discontinuation of the potentially inappropriately prescribed drug
- Patients residing in care homes
- Patients receiving palliative care
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Basque Health Servicelead
- Biobizkaiacollaborator
- Health Department of the Basque Governmentcollaborator
- European Unioncollaborator
- Carlos III Health Institute (ISCIII), Spaincollaborator
Study Sites (1)
Primary Care Research Unit of Bizkaia
Barakaldo, Bizkaia, 48903, Spain
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- PARTICIPANT, OUTCOMES ASSESSOR
- Purpose
- HEALTH SERVICES RESEARCH
- Intervention Model
- CROSSOVER
- Sponsor Type
- OTHER GOV
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Principal Investigator
Study Record Dates
First Submitted
December 17, 2025
First Posted
January 13, 2026
Study Start
February 1, 2026
Primary Completion (Estimated)
May 1, 2027
Study Completion (Estimated)
November 1, 2027
Last Updated
January 13, 2026
Record last verified: 2025-12
Data Sharing
- IPD Sharing
- Will share
- Shared Documents
- STUDY PROTOCOL
- Time Frame
- Starting 6 months after the publication of results
- Access Criteria
- Since data supporting the present study will mostly concern routine data retrieved from the electronic health record of the Basque Health Service-Osakidetza, it will only be made available on reasonable request to the study guarantors (proposals should be directed to the Responsible Party). It will only be shared with researchers whose proposed use of the data has been approved by an independent review committee identified for this purpose.
Individual participant data that support future results will be shared, after deidentification