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Participant Retention

At MAC, not only do we pride ourselves in our ability to recruit patients, but also to ensure full participation to completion.
MAC clinical trials volunteer retention

On top of successful recruitment methods, MAC also prides itself on excelled retention rates using effective techniques to assist patients and healthy volunteers from randomisation through to study completion. We believe clear communication and useful information are key factors for successful participant retention.

We recognise each participant as an individual, and understand that taking part in a clinical trial is an important decision. Retention efforts start long before a study commences, and are continued throughout to ensure both participant and sponsor satisfaction. Our friendly staff help build relationships with participants throughout the duration of a study. Wherever possible we ensure the needs and requirements of our participants are met, and we gather patient feedback about their experiences to improve what we do on an ongoing basis.

MAC employs a variety of approaches to ensure retention levels are maximised. Reasons for participant withdrawal are continuously evaluated, using primary data from our own patient feedback and secondary data from industry analysis. The majority of issues can generally be resolved through simple communication methods. MAC provides all clinical trial participants with 24 hour telephone assistance, a user-friendly website, courtesy calls before appointments, transport arrangements to and from the clinics, and unrivalled hospitality whilst at the site.


Our close relationship with participants ensures they feel happy to remain on trial and importantly, we find that most participants are happy to consider further clinical trials. Participants are informed of future clinical trials and new developments in a timely manner, when appropriate;  if interim analysis data are required/available participants are advised, and also notified of assigned randomisation groups once data are available. MAC’s proactive approach to shared knowledge assists in guiding participants to complete the trial, participate in further research and inform friends and family of the services we provide.

MAC's retention approaches ensure that clinical trial data are complete and gathered within study timelines.

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