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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 721-730 of 2194 for surgery

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  1. Myocardial Infarction Genes (MI-GENES) Study

    Rochester, MN

  2. A Study of Rivaroxaban (JNJ-39039039) on the Venous Thromboembolic Risk in Post-Hospital Discharge Patients

    Scottsdale/Phoenix, AZ

  3. A Study Comparing Edoxaban to Warfarin Therapy When Used for Cardiovascular Implantable Electrical Device Procedures in Patients with a Non-Valve Related Atrial Fibrillation

    Scottsdale/Phoenix, AZ

  4. The Effects of Acute and Chronic Exercise on the Immune Phenotype in Healthy Patients

    Rochester, MN

  5. Cardiovascular Health Promotion Among African-Americans by FAITH!

    Rochester, MN

  6. Safety and Efficacy of ANX-042 in Human Cardiorenal Syndrome

    Rochester, MN

  7. Re-treatment From a Phase I Study of MSC-AFP in Patients With Perianal Fistulas

    Rochester, MN

  8. Sorafenib Tosylate in Treating Patients With Desmoid Tumors or Aggressive Fibromatosis

    Jacksonville, FL, Rochester, MN

  9. Erlotinib with or without Bevacizumab in Treating Patients with Stage IV Non-Small Cell Lung Cancer with EGFR Mutations

    Rochester, MN

  10. Durvalumab+/- Tremelimumab in Combination With Platinum Based Chemotherapy in Untreated Extensive-Stage Small Cell Lung Cancer (Caspian)

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