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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 501-510 of 2188 for surgery

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  1. A Study to Evaluate the Safety of Intracoronary Infusion of Extracellular Vesicles in Patients with Acute Myocardial Infarction

    Rochester, MN

  2. A Study of the GORE® EXCLUDER® Conformable AAA Endoprosthesis in the Treatment of Abdominal Aortic Aneurysms

    Scottsdale/Phoenix, AZ

  3. A Study of Simulated Sylvian Fissure Dissection Under Subarachnoid Hemorrhage Conditions Using a Rodent Microvascular Anastomosis Model

    Rochester, MN

  4. Thoracotomy Versus Thoracoscopic Management of Pulmonary Metastases in Patients With Osteosarcoma

    Rochester, MN

  5. ABSORB III Randomized Controlled Trial (RCT)

    Rochester, MN

  6. Clinical Use of the Impella RP System

    Rochester, MN

  7. Individualized Preoperative Rehabilitation Pilot

  8. An Evaluation of Rigid Sternal Fixation in Supporting Bone Healing and Improving Postoperative Recovery

    Jacksonville, FL

  9. Early Treatment Versus Delayed Conservative Treatment of the Patent Ductus Arteriosus

    Rochester, MN

  10. A Study of the Practicality and Usefulness of the Ostom-I Alert System with Pediatric Ostomy Patients

    Rochester, MN

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