Active clinical trials for "Mycobacterium avium-intracellulare Infection"

To evaluate the efficacy and safety of two different doses of azithromycin in combination with ethambutol for the treatment of patients with Mycobacterium avium complex (MAC) infection, and to determine whether an azithromycin-containing regimen is at least as safe and effective as the same regimen containing clarithromycin..

To evaluate the efficacy and safety of azithromycin given chronically for the treatment of Mycobacterium avium (MAC) bacteremia in patients failing or intolerant of current available MAC therapy.

To demonstrate, in patients with tubercular or nontubercular mycobacterium infections with or without HIV infection, the safety of thalidomide use as judged by symptoms, physical exam, and studies of microbiologic, immunologic, hematologic, renal, and hepatic status. To demonstrate efficacy of the drug as judged by status of fever, nutrition, tuberculosis lesions, and immune responses.

To evaluate the efficacy and safety of azithromycin administered once a week in the prevention of disseminated Mycobacterium avium complex (MAC) in severely immunocompromised HIV-infected patients with a CD4 count < 100 cells/mm3.

PRIMARY: To assess the tolerability of the combination regimen of clarithromycin plus ethambutol with or without clofazimine in patients with disseminated Mycobacterium avium Complex (dMAC). SECONDARY: To determine the proportion of patients achieving a sterile blood culture along with the time required to achieve it. To determine the duration of bacteriological response, defined as length of time that blood cultures remain sterile.

OBJECTIVES: I. Determine the bacteriological activity of amithiozone against Mycobacterium avium complex (MAC) pulmonary disease. II. Define the ability of amithiozone to improve clinical outcomes in patients with MAC infection. III. Determine the safety and tolerance of amithiozone with chronic dosing in these patients. IV. Assess the contribution of clarithromycin, streptomycin, rifampin, ethambutol, kanamycin, and amithiozone in the treatment of pulmonary MAC infection.

This study will test the safety and effectiveness of inhaled interferon gamma-1b and oral antibiotics for treating mycobacterium avium complex (MAC) infection of the lungs. Patients 18 years of age or older with MAC infection of the lungs who 1) have been previously treated for MAC, or 2) have moderate or severe lung disease due to MAC that has not been previously treated may be eligible for this study. Participants will be randomly assigned to one of two treatment groups. Group 1 will receive 500 micrograms of interferon gamma-1b 3 times a week for 48 weeks by inhalation. Group 2 will inhale a placebo (inactive substance) according to the same regimen. In addition, all patients will receive standard MAC treatment with three antibiotics-clarithromycin or azithromycin, ethambutol and rifampin or rifabutin-taken by mouth times a week. Patients will come to the clinic for a screening visit, baseline visit, 1 month after beginning treatment, and at 3-month intervals thereafter until the end of the study. During these various visits, they will undergo the following tests and procedures: Medical history and physical examination, including height and weight measurements, heart rate, breathing rate, blood pressure and temperature Possibly computed tomography (CT) and X-ray of the lungs Sputum sample Pulmonary function studies Blood and urine tests Patients' eyes will be examined monthly to check for side effects of ethambutol, and hearing and balance will be tested to check for side effects of clarithromycin or azithromycin. At the baseline visit, the patient or caretaker will be trained to use a nebulizer (a special breathing device) to take the study medication.

The purpose of this study is to see if there are any changes in sugar and fat levels in the blood when patients take anti-HIV therapy for many years. Another goal is to test memory and mental concentrations to determine if anti-HIV drugs protect the brain from damage caused by HIV. (The purpose of this study has been changed from the original version.) HIV-infected patients with low CD4 cell counts are at risk for getting opportunistic (AIDS-related) infections. CD4 cells are cells of the immune system that help fight infection. Anti-HIV therapy may increase CD4 counts, which may lead to a decrease in AIDS-related infections. Problems that anti-HIV therapy is associated with include metabolic problems, neurologic problems, abnormal opportunistic infections, and cancer. Patients in ACTG 362 have been exposed to anti-HIV therapy longer than any other large group in the ACTG. These patients appear to benefit from their therapy, but also suffer problems from it. Observation of these patients should provide more information about long-term anti-HIV treatment and may detect unexpected problems. (This study as been changed. More information about the reasons for conducting this study has been added.)

Treatment of adults with chronic Mycobacterium avium-intracellulare complex lung infections who have failed or are intolerant of rifampin. Rifabutin may be a reasonable alternative agent in patients who fail rifampin or or intolerant of rifampin.

The purpose of this study is to determine if infection with Mycobacterium avium complex (MAC) occurs in other parts of the body before it is found in the blood. This study also evaluates the relationships between the amount of HIV in the blood, immune system functions, and the presence of MAC infection. HIV-positive patients are at risk for MAC infection because their immune systems have been weakened by HIV. It is hoped that aggressive treatment with anti-HIV drugs may improve their immune systems enough to prevent against MAC.