Flexible hours: NO

Clinical trial participation is generally not very flexible. Participants often need to adhere to a strict schedule for appointments, tests, and medication administration. Online communities like Reddit and niche forums frequently mention the need to commit to specific dates and times, which can limit flexibility. Some participants report hidden time commitments, such as travel time to the trial site or additional follow-up visits. While marketed as a flexible side hustle, many find it less so due to these scheduling constraints.