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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 831-840 of 2194 for surgery

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  1. Phase 2B Efficacy/Safety of Ornithine Phenylacetate in Hospitalized Cirrhotic Patients With Hepatic Encephalopathy (STOP-HE)

    Scottsdale/Phoenix, AZ

  2. A Consortium Trial to Evaluate Proton vs. Photon Therapy for Patients with Non-metastatic Breast Cancer

    Jacksonville, FL

  3. A Study to Evaluate the Safety and Effectiveness of Allogeneic Mesenchymal Precursor Cells for the Treatment of Heart Failure

    Rochester, MN

  4. A Study of Mechanisms of Altered Ventilatory Control in Heart Failure

    Rochester, MN

  5. A Study to Compare the Rate of Major Cardiovascular Implantable Electronic Device Infections with the Absorbable Antibacterial Envelope and without

    Rochester, MN

  6. A Study of the Effectiveness of Transvaginal Administration of Botulinum-A Toxin for the Treatment of Women with Over Active Bladder (OAB) Syndrome

    Jacksonville, FL

  7. A Study of Avatrombopag for the Treatment of Thrombocytopenia in Patients with Chronic Liver Disease Undergoing an Elective Procedure

    Jacksonville, FL

  8. Vaginal Bromocriptine for Treatment of Adenomyosis

    Rochester, MN, Rochester, MN

  9. Predictive Role of Non-Invasive Glucose Assessment During Pregnancy

    Rochester, MN

  10. An Outcomes Study to Assess Statin Residual Risk Reduction with Epanova in High Cardiovascular Risk Patients with Hypertriglyceridemia

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