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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 1-5 of 5 for Nicotine dependence

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  • Study status: Open/Status Unknown
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  1. Social Media Intervention to Promote Smoking Treatment Utilization and Cessation among Alaska Native Smokers

    Rochester, MN

  2. A Study to Determine Effectiveness of Perioperative Smoking Cessation in Surgical Patients Using Short Messaging Service Program

    Rochester, MN

  3. Smoking Cessation Prior to Surgery to Reduce Surgical Complications in Patients With Newly Diagnosed Lung Cancer Who Smoke Cigarettes

    La Crosse, WI, Mankato, MN, Rochester, MN

  4. Patterns of Co-use of Nicotine and Cannabis Electronic Cigarettes, and Its Association with Perceived Social Support in Young Adults

    Eau Claire, WI

  5. A Study to Evaluate Nicotine Concentrations in Regular Hookah Smokers

    Rochester, MN

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