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Healthy Volunteer

What is this?
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 681-690 of 2194 for surgery

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  1. A Study to Evaluate the Use of Adipose-derived Regenerative Cells in Bilateral Femoral Head Osteonecrosis

    Rochester, MN

  2. A Study of Performance of a New Investigational Prosthesis Design and Explore How Mimicking the Human Ankle May Enhance Maneuverability of Walking

    Rochester, MN

  3. PRESERVE-Zenith® Iliac Branch Clinical Study

    Scottsdale/Phoenix, AZ

  4. A Study to Evaluate Home-Based Exercise as an Intervention for Treating Patients with Varying Levels of Kidney Function

    Rochester, MN

  5. A Study to Assess the Anti-fatigability Effect of CK-2127107 in Elderly Male and Female Subjects With Limitations in Mobility

    Rochester, MN

  6. A Study Comparing Sublobar Resection versus Stereotactic Ablative Radiotherapy for Lung Cancer

  7. A Study of Motor Unit Recruitment During Isometric Contractions in Human Muscles

    Rochester, MN

  8. Peripheral Nerve Blocks vs Periarticular Local Anesthetic Injection for TKA

    Rochester, MN

  9. Phase I Clinical Trial of Autologous Adipose Derived Mesenchymal Stem Cells in the Treatment of Paralysis due to Traumatic Spinal Cord Injury

    Rochester, MN

  10. Penile Length Maintenance Post-Prostatectomy

    Rochester, MN

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