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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 1331-1340 of 10947

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  1. A Study to Develop the Use of Ultrasound to Monitor Treatment of Crohn's Disease

    Rochester, MN

  2. Pazopanib Hydrochloride and Topotecan Hydrochloride in Treating Patients With Metastatic Soft Tissue and Bone Sarcomas

    Jacksonville, FL, Rochester, MN

  3. A Study Using a New Ultra-low Dose CT Scanner to Find Lung Nodules

    Rochester, MN

  4. Dose Escalation and Double-blind Study of Veliparib in Combination With Carboplatin and Etoposide in Treatment-naive Extensive Stage Disease Small Cell Lung Cancer

    Scottsdale/Phoenix, AZ

  5. Phase III Study of DCVAC Added to Standard Chemotherapy for Men with Metastatic Castration Resistant Prostate Cancer

  6. A Study of the Effect of Using MRI and Mammography Before Surgery in Patients with Stage I-II Breast Cancer

    Rochester, MN

  7. Understanding the Pathophysiology and Effects of Diaphragmatic Breathing in Upright Gastroesophageal Reflux

  8. Study to Compare the Safety and Effectiveness of Treatment Combinations in Patients with Recurrent Ovarian Cancer

    Rochester, MN

  9. A Study Comparing Air versus Blood with Saline as Contrast Shading for Echocardiographic Imaging of the Right Heart and Shunts

    Rochester, MN

  10. A Study of the Safety and Effectiveness of GS-5745 in Participants with Moderately to Severely Active Crohn's Disease

    Rochester, MN

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