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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 1-3 of 3 for (maxillofacial OR "head and neck") AND surgery

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  1. Radiation Therapy With or Without Cisplatin in Treating Patients With Stage III-IV Squamous Cell Carcinoma of the Head and Neck Who Have Undergone Surgery

    Rochester, MN

  2. Radiation Therapy and Cisplatin With or Without Surgery in Treating Patients With Stage III-IV Oropharyngeal Cancer

    Rochester, MN

  3. A Study to Identify Biomarkers in the Blood, Saliva or Tissue for Oropharyngeal Squamous Cell Cancer

    Rochester, MN

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