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Extensively Drug-Resistant clinical trials

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

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NCT ID: NCT01381757 Terminated - Clinical trials for Tuberculosis, Pulmonary

Utility of MODS for Diagnosis of MDR-TB and Second-Line Antituberculous Drug Susceptibility Testing in Mali

Start date: May 31, 2011
Phase:
Study type: Observational

Background: -Tuberculosis (TB) is an infection of the lungs caused by bacteria. In Mali, TB is diagnosed with a test that is fast and inexpensive but not always accurate. The purpose of this study is to test a new method for diagnosing TB, called the microscopic-observation drug-susceptibility (MODS) test. The MODS test takes 7 days to show results. The test also gives information on which drugs will work best in each case. Objective: -To test a new method for diagnosing tuberculosis called the microscopic observation drug susceptibility test. Eligibility: - Participants must be 12 years of age or older. - They must have a diagnosis of TB from a sputum smear, or have symptoms of TB and an x-ray indicating that TB is present. Design: - Participants will take part in the study from 6 months to 21 months and be assigned to one of three groups, depending on what type of TB they have. - At the first visit, researchers ask questions about general health and symptoms of TB. They check vital signs, draw blood, and ask for a sputum sample. The blood is used to check for HIV infection and for the number of CD4 cells, which measures the severity of the HIV infection. - The 2-, 5-, and 6-month visits are similar to the first. Those who do not have multidrug-resistant (MDR) TB will end their participation after the 6-month visit. MDR TB is tuberculosis that has not responded to isoniazid and rifampicin. Participants with MDR TB will remain in the study for 21 months. - No treatment is provided as part of this study.