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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 21-30 of 33 for Thoracic Surgery

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  • Study status: Open/Status Unknown
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  1. A Study to Form a Single Usable Questionnaire Specifically for Foregut Surgery at Mayo Clinic

    Rochester, MN

  2. Genetic Testing in Screening Patients with Stage IB-IIIA Non-small Cell Lung Cancer That Has Been or Will Be Removed by Surgery (The ALCHEMIST Screening Trial)

    Scottsdale/Phoenix, AZ, Rochester, MN

  3. Patient Outcomes and Quality of Life following Total Gastrectomy

    Rochester, MN

  4. A Study of the Making and Storage of a Bank of Special Stem Cells for Use in Future Research and the Growth of New Cells

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

  5. A Study of the Immune System of Lung Cancer Patients

    Rochester, MN

  6. Comparison of Treatment Options for Achalasia

    Rochester, MN

  7. A Study to Collect Medical and Personal Histories, Blood and/or Tumor Tissue Samples from Patients Who are Long-term Survivors of Lung Cancer

    Rochester, MN

  8. A Study of Response Rate and Survival from Combined Chemotherapy, Surgery and Radiation Therapy for Patients with Malignant Mesothelioma

    Rochester, MN

  9. A Study to Explore the Mechanisms that Separate Responders Versus Non-responders to Treatment such as Immunotherapy, Target Therapy and Chemotherapy in Lung Cancer Patients

    Jacksonville, FL

  10. A Study to Develop a Decision Aid for Patients Having Lung Screening

    Rochester, MN

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