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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 1-10 of 21 for

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  1. Evaluation of the Effect of Fasting and Exercise on Uptake of Tc-99m Sestamibi in Breast Tissue

  2. Density MATTERS [Molecular Breast Imaging (MBI) And Tomosynthesis To Eliminate the Reservoir]

    Rochester, MN, La Crosse, WI

  3. Study to Compare Contrast-Enhanced Ultrasound, Contrast-Enhanced Dual Energy Mammography, and Contrast-Enhanced Breast MR for Early Breast Cancer Detection

  4. Low Dose Aspirin for the Prevention of Postpartum Related Breast Cancer

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

  5. 3D Ultrasound Vascular Imaging for Breast Cancers

    Rochester, MN

  6. A Study Screening Mammograms for Women in Their 40s: Mammography Choice

    Rochester, MN

  7. A Study of Microvasculature Imaging of Breast Masses

    Rochester, MN

  8. A Study Using Contrast Enhanced Digital Mammography in Addition to Diagnostic Mammography and Ultrasound for Suspicious Breast Lesions to Decrease Biopsy Rates

    Scottsdale/Phoenix, AZ

  9. Pilot Clinical Study to Evaluate Molecular Breast Imaging- Guidance for Sampling of Breast Abnormalities in Patients with Known or Suspected Breast Cancer

    Rochester, MN

  10. A Study to Evaluate and Optimize the Performance of the Ultrasound Decorrelation Imaging Technique on Clinical Patients Where Ultrasonographic Clip Detection is Needed

    Rochester, MN

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