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Healthy Volunteer

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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 31-40 of 78 for cerebrovascular

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  1. A Study of Atrial Cardiopathy and Antithrombotic Drugs In Prevention After Cryptogenic Stroke

    Jacksonville, FL

  2. A Study of Computer Simulation of Endovascular Repair of Cerebral Aneurysms Aneurysms

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

  3. A Study of Clopidogrel for the Prevention of TIA and Minor Ischemic Stroke

    Scottsdale/Phoenix, AZ

  4. Carotid Revascularization and Medical Management for Asymptomatic Carotid Stenosis Trial

    Scottsdale/Phoenix, AZ

  5. Massage Technique for Pain, Anxiety and Delirium in SAH Patients

  6. A Study to Compare Non-invasive Near-infrared Spectroscopy (NIRS) to Invasive Licox Intracranial Pressure Monitoring in Neurocritical Care

    Rochester, MN

  7. Anticoagulation in ICH Survivors for Stroke Prevention and Recovery

    Jacksonville, FL

  8. SCD Use to Prevent DVT in Patients with PICC Lines

    Rochester, MN

  9. A Study Comparing Apixaban to Vitamin K Antagonist for the Prevention of Stroke or Systemic Embolism and Bleeding in Patients with Non-valve Atrial Fibrillation and Acute Coronary Syndrome or Percutaneous Coronary Intervention

    Scottsdale/Phoenix, AZ

  10. Stroke Mitigation in A-fib Reasoning Tool for Shared Decision Making

    Rochester, MN

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