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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 1-4 of 4 for Nasal and paranasal tumors

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  • Study status: Open/Status Unknown
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  1. Patient Satisfaction in Mohs Micrographic Surgery with Supplemental Lidocaine Jelly

    Scottsdale/Phoenix, AZ

  2. Individualized Treatment in Treating Patients With Stage II-IVB Nasopharyngeal Cancer Based on EBV DNA

    Rochester, MN

  3. Otorhinolaryngology Normal, Tumor Tissue, Saliva, Stool, and Blood Bank

    Rochester, MN

  4. Mobile Device Surveying for Chronic Rhinosinusitis with Nasal Polyposis

    Rochester, MN

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