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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.

Search Results 11-20 of 101 for

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  1. A Study of 3-D Digital Mammography to Screen Patients for Breast Cancer

    Scottsdale/Phoenix, AZ, Rochester, MN

  2. A Clinical Use Application for the Humanitarian Use Device Exemption Use Protocol of TheraSphere for Treatment of Unresectable Primary or Secondary Liver Neoplasia

    Eau Claire, WI

  3. Evaluating Highly Flexible (aka AIR) RF Coils for Patients Undergoing MR Imaging for Radiation Therapy Planning

    Rochester, MN

  4. Prospective Use of Philips iSuite for Interventional Procedures

    Rochester, MN

  5. Ga-DOTATATE PET for Localization of Phosphaturic Mesenchymal Tumors in Patients with Tumor Induced Osteomalacia

    Rochester, MN

  6. A Study to Compare Conventional Heart Echo Measurements with Newer 2 and 3 Dimensional Measurements of Mechanical Heart Strain after Trastuzumab Infusion

    Rochester, MN

  7. Focal Laser Ablation of Prostate Cancer Tumors

    Rochester, MN

  8. Ultrasound Utility in Carpal Tunnel Syndrome

    Scottsdale/Phoenix, AZ, Rochester, MN

  9. Ferromagnetic Detection of Cardiac Devices using a Metrasens Screener

    Rochester, MN

  10. 3D Ultrasound Imaging for Breast Cancer Diagnosis

    Rochester, MN

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