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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 991-1000 of 2799 for cancer

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  1. Hypofractionated Radiation Therapy or Conventional Radiation Therapy After Surgery in Treating Patients With Prostate Cancer

    La Crosse, WI, Albert Lea, MN, Eau Claire, WI, Mankato, MN, Jacksonville, FL, Rochester, MN

  2. A Study of MT-5111 in HER2-positive Solid Tumors

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

  3. Alisertib in Treating Patients With Myelofibrosis or Relapsed or Refractory Acute Megakaryoblastic Leukemia

    Rochester, MN

  4. Comparison of Different Types of Surgery in Treating Patients with Stage IA Non-Small Cell Lung Cancer

    Rochester, MN

  5. A Study Comparing the Outcomes of Observation versus Immediate Surgery for Low Risk Bladder Cancer

    Rochester, MN

  6. A Study of ALX148 With Azacitidine for Higher Risk Myelodysplastic Syndrome

    Rochester, MN

  7. A Study to Assess the Safety and Tolerability of CFT7455 in Relapsed/Refractory Non-Hodgkin's Lymphoma or Multiple Myeloma

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

  8. A Study of CA-4948 in Patients With Relapsed or Refractory Primary Central Nervous System Lymphoma

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

  9. A Study of the Perceptions About Colon Cancer of Upper Midwest Native Americans and Their Health Care Providers

  10. A Study of Hypofractionated Radiotherapy to the Whole Breast Alone Before Breast Conserving Surgery

    Scottsdale/Phoenix, AZ, Jacksonville, FL

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