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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 1-5 of 5 for Asthma

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  • Study status: Open/Status Unknown
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  1. A Stud7 to Determine Asthma Status Using Automated Chart Review

    Rochester, MN

  2. PrecISE (Precision Interventions for Severe and/or Exacerbation-Prone Asthma) Network Study

    Scottsdale/Phoenix, AZ

  3. Recording Breath Acoustics and Lung Mechanics in Patients with COPD, Asthma, and Cystic Fibrosis

    Scottsdale/Phoenix, AZ

  4. Excretion of Mast Cell Mediators in Children with Allergic Disorders

    Rochester, MN

  5. A Study of the Effects of Preterm Birth on Lung Disease and Innate Immunity Later in Life

    Rochester, MN

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