Journal
EXPERT REVIEW OF PHARMACOECONOMICS & OUTCOMES RESEARCH
Volume 11, Issue 2, Pages 163-169Publisher
EXPERT REVIEWS
DOI: 10.1586/ERP.11.12
Keywords
individual change; minimal important differences; reliable change index; responder
Funding
- NIH/NIA [P30-AG028748, P30-AG021684]
- NCMHD [2P20MD000182]
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In recent years, the US FDA has become more critical of instruments used to measure patient-reported outcomes (PROs) in clinical trials. To facilitate decisions related to the approval of drugs, labels and promotional claims based on PROs, the FDA created the Study Endpoints and Label Development (SEALD) group. SEALD has developed a PRO guidance related to the use of PRO measures used to support drug approvals and label claims, including recommendations for establishing thresholds for meaningful change at the individual level (i.e., defining a responder). This article examines in detail the FDA-recommended methodology for defining a responder and analyzing responder-based PRO measure results. We also present other responder analysis approaches for consideration in furthering the precision and interpretation of this methodology.
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