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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 791-800 of 2194 for surgery

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  1. A Study of the Safety and Effectiveness of Home Monitoring of Blood Clotting Factors in Adults with Congenital Heart Disease

    Rochester, MN

  2. A Study to Evaluate the Long-Term Safety and Effectiveness of Ubenimex in Patients with Pulmonary Arterial Hypertension

    Rochester, MN

  3. A Study of Using Mesenchymal Stem Cells Developed from the Patients Own Fat Tissue for Reducing Hemodialysis Arteriovenous Fistula Failure

    Rochester, MN

  4. Lisinopril in Reducing Shortness of Breath Caused by Radiation Therapy in Patients With Lung Cancer

    Rochester, MN, Scottsdale/Phoenix, AZ

  5. A Study of BBI608 in Combination With Standard Chemotherapies in Adult Patients With Advanced Gastrointestinal Cancer

    Scottsdale/Phoenix, AZ, Rochester, MN

  6. Erlotinib Hydrochloride and Cabozantinib-s-Malate Alone or In Combination as Second or Third Line Therapy in Treating Patients With Stage IV Non-Small Cell Lung Cancer

    Scottsdale/Phoenix, AZ

  7. Testing an Active Form of Tamoxifen (4-hydroxytamoxifen) Delivered Through the Breast Skin to Control Ductal Carcinoma in Situ (DCIS) of the Breast

  8. Daily Oral Regorafenib for Chemotherapy-Refractory, Metastatic and Locally Advanced Angiosarcoma

    Jacksonville, FL, Rochester, MN

  9. A Study of Whole-Brain Radiation Therapy with or without Avoiding the Hippocampus while Treating Patients with Limited or Extensive Stage Small Cell Lung Cancer

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

  10. A Study to Evaluate the Use of AR-42 (Histone Deacetylase Inhibitor) in the Treatment of Vestibular Schwannoma and Meningioma

    Rochester, MN

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