Recruit & Retain Participants

The BrightFocus Foundation’s Clinical Trials Finder asks a series of questions to help users find an appropriate Alzheimer’s disease clinical trial. The foundation has also developed a brochure, “Clinical Trials: Your Questions Answered.” BrightFocus funds scientific research worldwide related to Alzheimer’s disease. “Turning Point” is a documentary (2.5 hours, 2017) that provides an inside look at the doctors, scientists and patients who are working to uncover the mysteries of Alzheimer’s...

The authors of this integrative review found that passive, indirect recruitment strategies have been the default approach for enrolling older African Americans into chronic illness-related research studies, including Alzheimer's studies. They recommend the use of proactive, culturally appropriate recruitment approaches, combined with caring recruiter behaviors, that explicitly target older African American adults and that involve direct interactions between prospective participants and the...

For the Alzheimer's Disease Neuroimaging Initiative 3 (ADNI3) trial, 462 new participants were enrolled. Recruitment metrics were recorded on 82,003 unique visitors to the recruitment website and 3,335 calls to study phone numbers. The recruitment sources that produced the most screening and enrollment included online advertisements, local radio and newspaper coverage, and emails and referrals from patient registries. According to the authors, ADNI3 is an example of how a data-driven approach to...

The rarity of disorders caused by frontotemporal lobar degeneration (FTLD) leads to recruitment challenges for related clinical trials and difficulties with adequate power to detect treatment effects. The authors of this systematic review recommend developing personalized endpoints that are most clinically meaningful to individuals and their families, devising more powerful approaches to analyzing heterogeneous clinical and magnetic resonance imaging data, and developing new fluid biomarkers and...

Using the CTSdatabase, a registry with more than 60,000 participants, the study authors found that nearly 4% of participants who were screened for memory loss studies visited more than one site within two years. Potential Alzheimer’s participants who went to additional sites did so predominantly for nonmemory conditions, often major depressive disorder or schizophrenia. According to the study authors, multiple enrollments confound efficacy and safety signals in clinical trials. They speculate...

For this study, 10,450 participants enrolled in an initial cohort study were asked to complete a six-lesson interactive education course, AlzU.org, about Alzheimer’s disease. Participants in the highest lesson completion group demonstrated the greatest screening rates for the Anti-Amyloid Treatment in Asymptomatic Alzheimer's Disease (A4) trial. In a subsequent randomized-controlled trial, 351 new participants were enrolled in the six-lesson course (n = 180) versus a time-neutral control course...

This systematic review examined 22 published reports describing recruitment and retention of individuals from underrepresented backgrounds in Alzheimer’s disease research or underrepresented participants’ perspectives regarding participation in such research. The authors concluded that considerable scientific gaps limit the use of prior efforts by scientists to bolster inclusion of members from underrepresented groups. They recommend that future studies on this topic use improved methodological...

The University of Washington’s Alzheimer's Disease Research Center (UW ADRC) provides a web page with information on current studies.

The Michael J. Fox Foundation, which focuses on elimination of Parkinson’s disease, has developed study recruitment materials that are applicable to other areas of disease research.

In this British study, 33 researchers working on dementia trials in care homes completed an online, qualitative questionnaire outlining their experiences and the perceived benefits and challenges of data collection from people with dementia (as opposed to only collecting data from caregivers or family member proxies). Five main benefits from obtaining the direct perspective of people with dementia in research were identified: (1) improving the delivery of person-centered care, (2) hearing the...