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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 11-17 of 17 for Pulmonary hypertension

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  • Study status: Open/Status Unknown
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  1. A Study to Establish a Registry for the Pulmonary Hypertension Association

    Jacksonville, FL

  2. A Study to Assess Frailty and Its Impact on Patients with Pulmonary Hypertension

    Rochester, MN

  3. A Biorepository to Study Portopulmonary Hypertension

    Rochester, MN

  4. A Study to Evaluate Pulmonary Hypertension Therapy to Treat Atypical Pulmonary Arterial Hypertension

    Rochester, MN

  5. A Study to Develop a Pulmonary Hypertension Association Registry (PHAR)

    Rochester, MN

  6. A Study to Assess Quality of Life with the PAH SYMPACT Questionnaire in the Pulmonary Hypertension Clinic

    Rochester, MN

  7. A Study to Evaluate Pulmonary Vascular Complications of Liver Disease 3 (PVCLD3)

    Rochester, MN


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