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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 21-24 of 24 for Cardiovascular Surgery

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  • Study status: Open/Status Unknown
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  1. Identification of Non-gal, Non-HLA Antigens in Patients Implanted with Xenogenic Material

    Rochester, MN

  2. A Study to Evaluate Noninvasive Ultrasound Elastography of Kidney and Lung in Assessment of Volume Status in ICU Patients

    Rochester, MN

  3. A Study to Assess the Biological Progression and Mechanisms of Mitral Annular Calcification

    Rochester, MN

  4. A Study to Evaluate ICU Simulation Experience in the Cardiothoracic Surgical Population to Reduce Post-operative Delirium

    Rochester, MN


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