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Evaluating the Implementation Fidelity of a Pilot Pragmatic Randomized Clinical Trial Comparing Daily-Delivered Meals
Jennifer N Bunker1, Michelle M Hilgeman2,3,4, Ellen McCreedy5
1Johns Hopkins University, Baltimore, MD, USA.
Abstract:
In pragmatic clinical trials (PCTs), the intervention is carried out by participating sites instead of research staff. In this paper, we evaluate study sites' implementation adherence during a pilot PCT of home-delivered meals for older adults with dementia. Participants at three home-delivered meal programs were randomized to receive either (1) meals delivered daily or (2) frozen meals mailed every two weeks; participants' outcomes were tracked for six months. Using the adherence domains from the Framework for Implementation Fidelity, we identified six metrics to assess adherence, with a total possible adherence score ranging from 6 (low adherence) to 18 (high adherence); all three sites scored within the top quartile of adherence. Despite challenges to meal delivery during the COVID-19 pandemic, sites successfully implemented the intervention, justifying a follow-on PCT to test the comparative effectiveness of models of meal delivery on the time to nursing home placement for people living with dementia.
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