Potentially earning $50 to $300 per day, clinical trials offer more than just financial compensation; they provide a way to contribute to groundbreaking medical research. How much you’ll get paid for doing clinical trials is based on the time required, level of involvement, and risk. Duration: Some studies can be as short as a few hours or days while others may last many months Involvement: Studies that involve complex procedures and/or more involvement usually pay more Risks: The variety and severity of risks are another key factor in determining payouts Be sure to get detailed answers to all of your questions about payment amounts and timeframes before you agree to participate.