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Healthy Volunteer

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A volunteer subject with no known significant health problems who participates in research to test a new drug, device or intervention. These volunteers are recruited to serve as controls for patient groups. Healthy volunteers receive the same test, procedure, or drug the patient group receives.

Study phase

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During the early phases (phases 1 and 2), researchers assess safety, side effects, optimal dosages and risks/benefits. In the later phase (phase 3), researchers study whether the treatment works better than the current standard therapy. They also compare the safety of the new treatment with that of current treatments. Phase 3 trials include large numbers of people to make sure that the result is valid. There are also less common very early (phase 0) and later (phase 4) phases. Phase 0 trials are small trials that help researchers decide if a new agent should be tested in a phase 1 trial. Phase 4 trials look at long-term safety and effectiveness, after a new treatment has been approved and is on the market.

Search Results 1-5 of 5 for Gastric bypass (Roux-en-Y)

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  • Study status: Open/Status Unknown
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  1. Bariatric Surgery Versus Diet Alone in the Bile Acid Pathway and Weight Loss

    Rochester, MN

  2. Effect of GLP-1 Receptor Agonism After Sleeve Gastrectomy

    Rochester, MN

  3. A Study to Evaluate the Mechanisms Leading to Hyperoxaluria and Increased Risk of Kidney Stone Formation after Bariatric Surgery

    Rochester, MN

  4. A StudyUsing Telemedicine Care to Determine What Bariatric Patients Prefer

    Rochester, MN

  5. A Registry to Collect Data and Biospecimens from Patients who are Obese and are Candidates for Bariatric Surgery

    Jacksonville, FL


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