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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 1-10 of 47 for psychiatry and psychology

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  • Study status: Open/Status Unknown
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  1. A Study to Evaluate Visually Inspired Patient Education Material on Willingness to Pursue Radiation Therapy

    Scottsdale/Phoenix, AZ

  2. Impact of Massage Therapy and Music Therapy on the Quality of Life of Hospice Patients

    Rochester, MN

  3. Augmented Human Intelligence in Major Depressive Disorder

    Jacksonville, FL, Rochester, MN

  4. A Study to Optimize Endocrine Therapy Through Motivational Interviewing and Text Interventions

    Albert Lea, MN

  5. Treating Negative Affect in Low Back Pain Patients (TNA-LBP)

    Rochester, MN

  6. Evaluating Mindfulness-Based Intervention with Fibromyalgia Patients

    Rochester, MN

  7. Adolescent Biomarker Guided rTMS

    Rochester, MN

  8. Intensive Parent-child Interaction Therapy (I-PCIT): Feasibility and Effectiveness Study.

    La Crosse, WI, Rochester, MN

  9. A Study to Evaluate AAV8-human Cocaine Hydrolase to Treat Cocaine Use Disorder

    Rochester, MN

  10. An Open Label Trial of TMS Therapy for Bipolar Depression

    Rochester, MN

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