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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 511-520 of 2195 for surgery

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  1. An Efficacy, Safety and Tolerability Study of Ixmyelocel-T Administered via Transendocardial Catheter-based Injections to Subjects with Heart Failure Due to Ischemic Dilated Cardiomyopathy (IDCM)

    Scottsdale/Phoenix, AZ

  2. PET Scan Imaging in Assessing Response in Patients with Esophageal Cancer Receiving Combination Chemotherapy

    Rochester, MN

  3. Vascular Boot Warming Program After Acute Deep Vein Thrombosis (DVT) ± Pulmonary Embolism (PE)

  4. Feasibility Study of IV rtPA vs. Primary Endovascular Therapy for Acute Ischemic Stroke

    Jacksonville, FL

  5. Study of Treating Patients with Vestibular Schwannoma with Aspirin

    Rochester, MN

  6. Safety Study of Chimeric Natriuretic Peptide(CD-NP) in Stable LVAD Patients

  7. Subcutaneous Furosemide in Acute Decompensated Heart Failure Pilot

    Rochester, MN

  8. The EMPrint™ Ablate and RESect Study in Patients With Metastatic Lung Tumors

  9. Comparison of Three Surgical Techniques to Achieve Patella Symmetry During Resection

    Rochester, MN

  10. A Study of the GORE® TAG® Thoracic Branch Endoprosthesis for Treating Proximal Descending Thoracic Aortic Aneurysms

    Rochester, MN

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