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Overcoming Barriers to Parkinson Disease Trial Participation: Increasing Diversity and Novel Designs for Recruitment and Retention.

ABSTRACT: Parkinson disease (PD) is highly prevalent among neurodegenerative diseases, affecting a diverse patient population. Despite a general willingness of patients to participate in clinical trials, only a subset of patients enroll in them. Understanding the barriers to trial participation will help to alleviate this discrepancy and improve trial participation. Underrepresented minorities, older patients, and patients with more medical comorbidities in particular are underrepresented in research. In clinical trials, this has the effect of delaying trial completion, exacerbating disparities, and limiting our ability to generalize study results. Efforts to improve trial design and recruitment are necessary to ensure study enrollment reflects the diversity of patients with PD. At the trial design level, broadening inclusion criteria, attending to participant burden, and focusing on trial efficiency may help. At the recruitment stage, increasing awareness, with traditional outreach or digital approaches; improving engagement, particularly with community physicians; and developing targeted recruitment efforts can also help improve enrollment of underrepresented patient groups. The use of technology, for virtual visits, technology-based objective measures, and community engagement, can also reduce participant burden and increase recruitment. By designing trials to consider these barriers to trial participation, we can improve not only the access to research for all our patients but also the quality and generalizability of clinical research in PD.

SUBMITTER: Vaswani PA

PROVIDER: S-EPMC7851248 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Project description:BackgroundWe discuss barriers to recruitment, retention, and intervention delivery in a randomized controlled trial (RCT) of patients presenting with firearm injuries to a Level 1 trauma center. The intervention was adapted from the Critical Time Intervention and included a six-month period of support in the community after hospital discharge to address recovery goals. This study was one of the first RCTs of a hospital- and community-based intervention provided solely among patients with firearm injuries.Main textBarriers to recruitment included limited staffing, coupled with wide variability in length of stay and admission times, which made it difficult to predict the best time to recruit. At the same time, more acutely affected patients needed more time to stabilize in order to determine whether eligibility criteria were met. Barriers to retention included insufficient patient resources for stable housing, communication and transportation, as well as limited time for patients to meet with study staff to respond to follow-up surveys. These barriers similarly affected intervention delivery as patients who were recruited, but had fewer resources to help with recovery, had lower intervention engagement. These barriers fall within the broader context of system avoidance (e.g., avoiding institutions that keep formal records). Since the patient sample was racially diverse with the majority of patients having prior criminal justice system involvement, this may have precluded active participation from some patients, especially those from communities that have been subject to long and sustained history of trauma and racism. We discuss approaches to overcoming these barriers and the importance of such efforts to further implement and evaluate hospital-based violence intervention programs in the future.ConclusionDeveloping strategies to overcome barriers to data collection and ongoing participant contact are essential to gathering robust information to understand how well violence prevention programs work and providing the best care possible for people recovering from injuries.Trial registrationClinicalTrials.gov NCT02630225 . Registered 12/15/2015.

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Overcoming Barriers to Parkinson Disease Trial Participation: Increasing Diversity and Novel Designs for Recruitment and Retention.

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