U.S. clinical trials: Why participants join and what concerns them

Clinical trial participants reveal motivations, satisfaction gaps in new U.S. survey

A recent survey has revealed key insights into the experiences of clinical trial participants in the U.S. The findings highlight differences in motivation, satisfaction, and concerns among those taking part. Over 86 percent of respondents said they would join another trial in the future.

The study also uncovered disparities in compensation, demographics, and perceptions of the process itself.

Nearly two-thirds of participants were women, with almost 80 percent identifying as Caucasian. Among them, 93 percent of women expressed willingness to join future trials, compared to 77 percent of men.

Motivations varied: over a third sought the latest treatment for a medical condition, while another third aimed to support scientific progress. Notably, 26 percent of participants were healthy volunteers contributing purely to advance research. Satisfaction levels were generally high, with more than a third rating their experience a perfect five out of five. Cancer patients, in particular, reported more positive experiences than those without the disease. However, concerns lingered—many worried about potential policy changes under the Trump administration affecting future trials. Despite the high engagement, over 30 percent of participants received no payment for their involvement. This comes as the number of U.S. clinical trials has surged by over 190 percent since 2000, reflecting growing demand for medical research.

The survey underscores both the enthusiasm and apprehensions of clinical trial participants. A strong majority would take part again, yet issues like unpaid involvement and policy uncertainty remain. These findings could shape how future trials are structured and promoted to ensure fairer participation.