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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 4641-4650 of 11735

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  1. Validation of Kinetic Activity Monitors (KAMs) in children

    Scottsdale/Phoenix, AZ

  2. Effect of Fluctuations in Pressure on Human Performance

    Scottsdale/Phoenix, AZ

  3. The Effects of Glucagon on Hepatic Metabolism

    Rochester, MN

  4. Deflazacort Expanded Access Program For Children, Adolescents And Adults With Duchenne Muscular Dystrophy

    Rochester, MN

  5. Re-treatment From A Phase I Study Of MSC-AFP In Patients With Perianal Fistulas

    Rochester, MN

  6. A Study Using The New TLR8 Agonist VTX-2337 And Cyclophosphamide In Treating Patients With Metastatic, Persistent, Recurrent, Or Progressive Solid Tumors

    Scottsdale/Phoenix, AZ

  7. Ponatinib Hydrochloride In Treating Patients With Advanced Biliary Cancer With FGFR2 Fusions

    Scottsdale/Phoenix, AZ, Jacksonville, FL, Rochester, MN

  8. A Study Using a Bedside Echocardiograph to Assess Heart Rhythm in Patients with Tachycardia

    Rochester, MN

  9. A Study to Evaluate the Feasibility of Varenicline Treatment for Vaping Cessation

  10. A Study of Breath Testing for Small Intestinal Bacterial Overgrowth

    Jacksonville, FL

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