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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.

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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 31-35 of 35 for psychiatry and psychology

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  1. Pediatric Pain Rehabilitation Treatment Outcomes for Chronic Noncancer Pain

    Rochester, MN

  2. A Study to Determine Whether Ongoing Assessment Aids Treatment

    Rochester, MN

  3. A Study to Research Epilepsy in Adolescent Clinical Transitions

    Rochester, MN

  4. A Study to Evaluate Treatment of Delayed Sleep-Wake Phase Syndrome with Melatonin in Patients with Comorbid Alcohol Use Disorders

    Rochester, MN

  5. A Study to Evaluate Cancer Distress, Psychological Trauma, and Resiliency in Hospitalized Hematopoietic Stem Cell Transplant Patients

    Jacksonville, FL

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