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Healthy Volunteer

What is this?
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

What is this?
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 591-600 of 2194 for surgery

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  1. A Study to Evaluate the Effectiveness of Vacuum-Assisted Dressings for the Management of Open Chest Wounds

    Jacksonville, FL

  2. Spinal Stimulation to Treat Low Back Pain

    Rochester, MN

  3. Safety and Efficacy of Tafamidis in Patients With Transthyretin Cardiomyopathy

    Rochester, MN

  4. A Study to Assess Epicardial Delivery of XC001 Gene Therapy for Refractory Angina Coronary Treatment (The EXACT Trial)

    Scottsdale/Phoenix, AZ

  5. A Study of PRX004 in Subjects With Amyloid Transthyretin (ATTR) Amyloidosis

    Rochester, MN

  6. A Study to Compare the Effectiveness of Different High-intensity Interval Training Programs in Cardiac Rehabilitation

    Rochester, MN

  7. Expanded Access Protocol of Patisiran for Patients With Hereditary ATTR Amyloidosis (hATTR)

    Rochester, MN

  8. BiCaZO: A Study Combining Two Immunotherapies (Cabozantinib and Nivolumab) to Treat Patients With Advanced Melanoma or Squamous Cell Head and Neck Cancer, an immunoMATCH Pilot Study

    Jacksonville, FL, Scottsdale/Phoenix, AZ

  9. Deuterated Phenanthrene Tetraol in Smokers Who Are at High Risk For Lung Cancer

    Rochester, MN

  10. A Study to Assess Fluent Fluid Management System vs. Aquilex Fluid Control System in Women Undergoing Myomectomy and Polypectomy Procedures

    Jacksonville, FL

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