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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 1411-1420 of 11597

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  1. Massage Technique for Pain, Anxiety and Delirium in SAH Patients

  2. Chemotherapy Alone or Chemotherapy Plus Radiation Therapy in Treating Patients with Locally Advanced Rectal Cancer Undergoing Surgery

    Eau Claire, WI

  3. Modulation of Heme Oxygenase 1 by Nizatidine and Lisinopril in Healthy Subjects

    Rochester, MN

  4. Alaska Native Family-Based, Financial Incentives Intervention for Smoking Cessation

    Rochester, MN

  5. Treatment of Symptomatic Bloating Using a Novel Hypnotherapy Protocol

    Rochester, MN

  6. Body Weight-Based Interval Training in Sedentary Overweight and Obese Adults

    Rochester, MN

  7. Exercise to Treat Frailty in Kidney Transplant Candidates

    Rochester, MN

  8. Ketamine Associated ACC GABA and Glutamate Change and Depression Remission

    Rochester, MN

  9. Hydrodissection as a Treatment for Carpal Tunnel Syndrome

    Rochester, MN

  10. Evaluating the Effectiveness of Apremilast in the Treatment of Subjects with Canker Sores

    Jacksonville, FL

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