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ABSTRACT: Pilot and feasibility studies are conducted early in the clinical research pathway to evaluate whether a future, definitive study can or should be done, and if so, how. Poor planning and reporting of pilot and feasibility studies can compromise subsequent research efforts. Inappropriate labelling of studies as pilots also compromises education. In this review, first a systematic survey of the current state of pilot and feasibility studies in rehabilitation research was performed, and second, recommendations were made for improvements to their design and reporting. In a random sample of 100 studies, half (49.5%) were randomized trials. Thirty (30.0%) and three (3.0%) studies used 'pilot' and 'feasibility' in the study title, respectively. Only one third (34.0%) of studies provided a primary objective related to feasibility. Most (92.0%) studies stated an intent for hypothesis testing. Although many (70.0%) studies mentioned outcomes related to feasibility in the methods, a third (30.0%) reported additional outcomes in the results and discussion only, or commented on feasibility anecdotally. The reporting of progression plans to a main study (21.0%) and progression criteria (4.0%) was infrequent. Based on these findings, it is recommended that researchers correctly label studies as a pilot or feasibility design based on accepted definitions, explicitly state feasibility objectives, outcomes and criteria for determining success of feasibility, justify the sample size, and appropriately interpret and report the implications of feasibility findings for the main future study.

Original publication

DOI

10.1097/PHM.0000000000001797

Type

Journal article

Journal

Am j phys med rehabil

Publication Date

28/05/2021