The health of migrants with type 2 diabetes has become a public health concern. Minority populations, including migrants, are often considered ‘hard-to-reach groups’ in clinical research, as researchers face challenges in engaging, accessing and retaining participants. Previous reviews have focused on either recruitment or retention, highlighting the need to gather experiences to obtain a more comprehensive picture for improving participation in research.

To share lessons learned about the challenges of recruiting and implementing an intervention study including migrants with type 2 diabetes.

This was a descriptive study, where researchers recorded experiences in reflective diaries and held discussions with the multi-professional teams involved. Data were analysed using Pawson’s conceptual framework, evaluating four dimensions of context: individual, interpersonal, institutional and infrastructural.

The individual context concerns the time-consuming recruitment process since about half of the prospective participants did not want to participate, often due to illness, lack of time, the need to work, or having travelled abroad. In the interpersonal context, the main challenge was involving several professional groups; the greater the involvement, the less flexibility there was to meet expectations. The priorities in the institutional context were to provide care, with efficiency and productivity taking precedence over research. The infrastructural context was crucial due to a lack of staff available to support recruitment, the healthcare system’s burden caused by the pandemic, and the impact of laws and regulations in healthcare.

Recruiting and implementing clinical research studies among migrant populations is complex. Factors across all contextual levels play a role, but the main challenges are within the institutional and infrastructural contexts. Changes in infrastructure influence institutional priorities, particularly with an already strained staff situation in primary healthcare. While political and social changes are difficult to alter, fostering positive attitudes towards research at the individual and interpersonal levels is important.

Chronic pain research studies are important for both finding new treatments and improving existing treatments for individuals with chronic pain. For clinical trials to be effective, participants need to be engaged and willing to participate in treatment groups. Our research applies the theory of planned behavior (TPB) to understand how attitudes, perceived social norms, and perceived control over intervention engagement are associated with willingness to participate in interventions for chronic low back pain (CLBP).

Adult Michigan Medicine patients were identified using electronic medical records and emailed a link to an online, cross-sectional survey. Participants who self-reported CLBP, ability to read and write in English, and consented to participate were able to complete the survey (N = 405).

The results showed more positive attitudes, positive social norms, and higher perceived behavioral control related to specific chronic low back pain interventions are associated with greater willingness to participate after controlling for demographic and pain-related characteristics.

The findings suggest that TPB constructs may be useful in guiding recruitment efforts for chronic pain intervention trials.

Trust in biomedical research is essential, multidimensional, and shaped by individual experiences, culture, and communication. Participants’ trust relies on researchers’ commitment to ethical practices. As public trust in science declines due to misinformation and disinformation campaigns, biomedical researchers (BmRs) must ensure trust and cultivate trustworthiness. This study explores BmR’s perspectives on trust and trustworthiness.

We employed a qualitative, phenomenological approach to explore the experiences of BmRs. Through purposive sampling via the Indiana Clinical and Translational Sciences Institute, we invited BmRs to participate in semi-structured interviews. We employed rapid qualitative analysis (RQA) to identify key themes from interviews with BmRs. This action-oriented approach enables a research team to efficiently summarize experiences and perspectives, using structured templates and matrixes for systematic analysis and interpretation.

Fourteen BmRs were interviewed. Volunteer demographics were collected for race/ethnicity, gender, faculty rank, and investigator experience level. The following domains were identified: individual trust and trustworthiness, institutional trustworthiness, and trust and equity as a crucial part of structural and social drivers of health.

We recognize that BmRs are dedicated to health equity and addressing disparities. However, in addition to committing to “best practices,” BmRs should prioritize actions that foster genuine trust from the communities they serve. More development opportunities are needed for reflection of what it means to be trusted by research volunteers and communities. Furthermore, intentions alone aren’t sufficient; earned trust and trustworthiness are vital.

To provide insights into the motivations, challenges, and preferred methods of contact that influence the recruitment and retention of young adults (YAs) in health research.

We designed, collected, and analyzed two surveys targeting YAs aged 18–39 years through the Amazon MTurk platform, to assess factors influencing recruitment and retention in health studies. The recruitment survey (n = 477) examined initial engagement motivations, while the retention survey (n = 473) explored factors that sustain long-term participation. Descriptive analyses were stratified by age group and sex.

The recruitment survey indicated that 88% of YAs were willing to participate in health studies, with a preference for online formats (78%). Social media, particularly Facebook (53%), was endorsed as the most common platform for discovering research opportunities. Monetary incentives were reported as the top motivator across all age groups, especially for those aged 35–39 years, with gift cards endorsed as the most appealing to participants aged 18–34. Retention survey results indicated that email (100%) was the most preferred method for maintaining engagement, followed by text messages (78.9%) and social media (62.2%). Text messages (65%), regular updates (56%) and sharing of study results (54%) were identified as key factors for maintaining participant engagement.

Our findings identify that YA participation is driven by a mix of altruistic motivations, such as contributing to the community and research, and personal motivations, including personal health benefits and financial incentives, emphasizing the need for strategies that address both aspects of recruitment and retention motivations.

To investigate factors influencing the recruitment and retention of adult community nurses.

The recruitment and retention of community nurses is a growing global challenge, exacerbated by aging populations and increasing demand for primary and home-based care. Across Europe, nurse shortages threaten healthcare sustainability, with high attrition rates linked to workplace pressures, inadequate staffing, and emotional exhaustion. Despite efforts to strengthen retention, many European countries struggle to maintain adequate staffing levels, particularly in community nursing.

An exploratory qualitative approach was used with semi-structured interviews. The interview schedule was shaped by the study’s aims, a prior integrative literature review, and the ‘causal model of turnover for nurses’. Questions explored participants’ experiences of recruitment into community nursing and factors influencing retention. The study focused on registered nurses and service managers within adult community nursing organizations across diverse geographical areas.

The study identified eight main themes influencing recruitment and retention: the perfect job, finding true self and fulfilment, alignment with organizational values, prior development and transitional experience, job dissatisfaction, shift in traditional practices, lack of compassionate leadership, and family commitments. Key factors included workplace flexibility, professional identity, job security, and organizational culture. However, challenges such as staffing shortages, lack of career progression, and increased administrative tasks were significant barriers to retention.

This study highlights the multifaceted challenges surrounding community nurse recruitment and retention, emphasizing the need for targeted strategies that go beyond traditional hospital-focused approaches. While salary improvements remain crucial, broader systemic changes including workplace flexibility, compassionate leadership, and career development opportunities are essential to fostering a sustainable workforce. By addressing these factors through co-designed solutions and evidence-based policy adjustments, healthcare organizations can enhance job satisfaction, reduce attrition, and ultimately strengthen the future of community nursing.

Recruiting and retaining racial/ethnic minorities in research remains a significant challenge, often due to mistrust in clinical research and cultural misconceptions related to specific conditions. Despite the anonymity provided by technology-based intervention studies, difficulties in participant recruitment and retention in these studies remain. This paper addresses practical issues in recruiting and retaining Asian American breast cancer survivors with pain and depressive symptoms in a technology-based intervention study.

To identify practical issues in participant recruitment and retention, a content analysis was conducted on all recorded materials, including research diaries of individual research team members, weekly team meeting minutes, and research team members’ posts on Microsoft Teams.

Analysis identified six practical issues: (a) strict inclusion/exclusion criteria; (b) multiple stigmas associated with cancer, depressive symptoms, and pain; (c) lack of interest in research participation; (d) closed Asian American communities/groups; (e) frequent technological issues; and (f) potential unauthentic cases.

Addressing these recruitment and retention issues can inform the design of future culturally tailored, technology-based intervention studies for racial and ethnic minority populations.

Rural communities make up 19% of the US population, yet are underrepresented in clinical trials. Community engagement methods can facilitate collaboration and trust with local healthcare personnel to enhance enrollment. The purpose of this manuscript is to describe community engagement methods and their impact on enrollment in a pragmatic clinical trial.

We describe a variety of methods used in the Fibromyalgia TENS in Physical Therapy Study (FM-TIPS) to enhance enrollment in rural communities and low-enrolling clinics. Community engagement methods were implemented partway through the trial for selected groups: Targeted Rural (TR) (n = 10), Targeted Low Enrolling (TLE) (n = 6), and compared to Untargeted Groups (UT) (n = 13). The impact of these methods on inquiries, screening, and enrollment were evaluated by comparing actual enrollment to projected enrollment.

We trained and employed community engagement coordinators to implement strategies in TR and TLE physical therapy clinics. These included, posting flyers, community events, physician outreach, social media ads, and direct mailing. These methods increased study inquiries, screening and enrollment in the study. Specifically, when compared to projected values there were increases in enrollment for both the TR and the TLE groups, but not the UT group. Of those that passed screening 99% of rural and 32% of urban residents enrolled in the study.

A multi-pronged and individualized community engagement approach can increase enrollment of rural residents in clinical trials. Building strong relationships and partnering with community clinics and local communities is essential to success.

Lack of reliable, affordable transportation is a common barrier to clinical research participation, potentially contributing to health disparities. Insufficient and/or nonexistent institutional policies on research-related transportation make it challenging for research teams to effectively overcome transportation barriers and promote research participation among people from disadvantaged backgrounds. This study’s goal was to review research-related transportation policies across clinical research-involved institutions and propose recommendations for what such policies should address to help promote research engagement among diverse, representative populations.

We surveyed 28 recruitment sites, members of the National Institutes of Health-funded Healthy Brain and Child Development Consortium, poised to recruit over 7000 families, and completed an online search for each site’s policies relevant to research-related transportation (i.e., transportation of participants or research staff travel to/from research activities). We identified, reviewed, and thematically described content of the relevant policies and developed summary recommendations for institutional guidance components.

We identified seven policies (from five sites) on research-related transportation; four provided guidance on research-related transportation services; two on reimbursement; and one on when research staff transports participants. The online search identified publicly available business travel policies for 22 sites. No policy addressed research staff travel specifically for “study business” or research personnel transporting children for research purposes.

Few institutions involved in clinical research have policies guiding research-related transportation. Such policies, if adopted, could help support research-related transportation and, thus, participation of individuals from disadvantaged backgrounds, increasing generalizability of research results and contributing toward reducing social and health disparities.

Inadequate recruitment and retention impede clinical trial goals. Emerging decentralized clinical trials (DCTs) leveraging digital health technologies (DHTs) for remote recruitment and data collection aim to address barriers to participation in traditional trials. The ACTIV-6 trial is a DCT using DHTs, but participants’ experiences of such trials remain largely unknown. This study explored participants’ perspectives of the ACTIV-6 DCT that tested outpatient COVID-19 therapeutics.

Participants in the ACTIV-6 study were recruited via email to share their day-to-day trial experiences during 1-hour virtual focus groups. Two human factors researchers guided group discussions through a semi-structured script that probed expectations and perceptions of study activities. Qualitative data analysis was conducted using a grounded theory approach with open coding to identify key themes.

Twenty-eight ACTIV-6 study participants aged 30+ years completed a virtual focus group including 1–4 participants each. Analysis yielded three major themes: perceptions of the DCT experience, study activity engagement, and trust. Participants perceived the use of remote DCT procedures supported by DHTs as an acceptable and efficient method of organizing and tracking study activities, communicating with study personnel, and managing study medications at home. Use of social media was effective in supporting geographically dispersed participant recruitment but also raised issues with trust and study legitimacy.

While participants in this qualitative study viewed the DCT-with-DHT approach as reasonably efficient and engaging, they also identified challenges to address. Understanding facilitators and barriers to DCT participation and DHT interaction can help improve future research design.

Insufficient sample sizes threatened the fidelity of the primary research trials. Even if the research group recruits a sufficient sample size, the sample may lack diversity, reducing the generalizability of the results of the study. Evaluating the effectiveness of online advertising platforms (e.g., Facebook & Google Ads) versus traditional recruitment methods (e.g., flyers, clinical participation) is essential.

Patients were recruited through email, electronic direct message, paper advertisements, and word-of-mouth advertisement (traditional) or through Google Ads and Facebook Ads (advertising) for a longitudinal study on monitoring COVID-19 using wearable devices. Participants were asked to wear a smart watch-like wearable device for ∼ 24 hours per day and complete daily surveys.

The initiation conversion rate (ICR, impressions to pre-screen ratio) was better for traditional recruitment (24.14) than for Google Ads, 28.47 ([0.80, 0.88]; p << 0.001). The consent conversion rate (CCR, impressions to consent ratio) was also higher for traditional recruitment (66.54) than for Google Ads, 2961.20 ([0.015, 0.030]; p << 0.001). Participants recruited through recommendations or by paper flier were more likely to participate initially (Χ2 = 23.65; p < 0.005). Clinical recruitment led to more self-reporting white participants, while other methods yielded great diversity (Χ2 = 231.47; p << 0.001).

While Google Ads target users based on keywords, they do not necessarily improve participation. However, our findings are based on a single study with specific recruitment strategies and participant demographics. Further research is needed to assess the generalizability of these findings across different study designs and populations.