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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 761-770 of 2194 for surgery

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  1. A Study to Assess Force Feedback with the SoftHand Pro

    Rochester, MN

  2. To Assess the Effectiveness, Safety, and Tolerability of INCB000928 in Participants With Fibrodysplasia Ossificans Progressiva

    Rochester, MN

  3. Investigation of Neurocognitive Measures of Sport-Related Injury

    Rochester, MN

  4. A Study of Diagnostic Accuracy of The Mi-eye2™ Compared to Magnetic Resonance Imaging in Knee Arthroscopy Patients

    Scottsdale/Phoenix, AZ

  5. Autologous Culture Expanded Adipose Derived MSCs for Treatment of Painful Hip OA

    Rochester, MN

  6. Exercise and Low-Dose Rapamycin in Older Adults with CAD:Cardiac Rehabilitation And Rapamycin in Elderly (CARE) Trial

    Rochester, MN

  7. Use of Autologous Bone Marrow Aspirate Concentrate in Painful Knee Osteoarthritis

    Jacksonville, FL

  8. A Study of ASP8273 versus Erlotinib or Gefitinib as First-Line Treatment for Patients with Stage IIIB/IV Non-Small Cell Lung Cancer

    Scottsdale/Phoenix, AZ, Rochester, MN

  9. Study Evaluating the Side Effects of Bone Marrow-Derived Stem Cells When Injected Into the Facet Joints for the Treatment of Painful Arthropathies

    Jacksonville, FL

  10. International Study of Comparative Health Effectiveness With Medical and Invasive Approaches (ISCHEMIA)

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