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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.

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  1. A Study Of HISTOTRIPSY For Abdominal Tumor Treatment

    Rochester, MN

  2. A Study Of Stryker Trauma & Extremities Shoulder Arthroplasty Devices

    Rochester, MN, Jacksonville, FL

  3. Usefulness of Ultrasound Lung Comets as a Sign of Interstitial Pulmonary Edema in Patients with Subarachnoid Hemorrhage Receiving Fluid Resuscitation

    Jacksonville, FL

  4. MC240508: Genomic Surveillance Of Bladder Cancer

    Scottsdale/Phoenix, AZ

  5. Vessel Wall Inflammation in Neurosarcoidosis

    Rochester, MN

  6. Acceptability Of Testing DNA Markers In Vaginal Fluid For The Detection Of Endometrial Cancer

    Rochester, MN

  7. Stabilizing Autologous Tregs in Psoriatic Arthritisto Protect Target Joint and Tendon Tissues

    Scottsdale/Phoenix, AZ, Rochester, MN

  8. A Study Of Astrin Biosciences EV-based Proteomic Assay In Detecting Breast Cancer

    Rochester, MN

  9. A Study Of Telemedicine For Forensic Certification Exams

    Rochester, MN

  10. Strategies For Upper Digestive Disease Symptom Management

    Rochester, MN

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