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Barriers and Facilitators to Research Trials of non-Pharmaceutical Interventions (completed)

This study aims to better understand why there has been so few trials of non-pharmaceutical interventions since the beginning of the COVID-19 pandemic. 

This study, aimed at researchers and others involved in the COVID-19 response, is part of a wider project "Inclusive Evaluation of Public Health Interventions" led by the University of Bergen.

With this survey, we aim to uncover and assess the respondents’ perceptions on the importance of these barriers and facilitators to conducting randomized trials of non-pharmaceutical interventions. We further aim to identify potential solutions that could facilitate the undertaking of such trials in the future.

Are you a researcher or have you been involved in the COVID-19 response? Participate in our Survey


While over 2100 randomized controlled trials (RCTs) have been reported for pharmaceutical interventions for COVID-19, less than 15 such trials for non-pharmaceutical interventions have been registered so far (

Researching the impact of non-pharmaceutical interventions through RCTs appears to have been challenging, but it is not clear why.  We know from prior experience that evaluating public health interventions can be challenging, and several barriers and facilitators have been documented in the literature.


The study is financed by the Research Council of Norway as part of the "Inclusive Evaluation of Public Health Interventions" project at the University of Bergen.

Start - Finish

1.1.2021 - 31.12.2021


Tags: COVID-19
Published Mar. 23, 2021 11:12 AM - Last modified Aug. 29, 2022 9:34 AM


Pascale Renée Cyr
PhD Candidate, Department for Community Medicine and Global Health, University of Oslo