Loading clinical trials...
Loading clinical trials...
Showing 1-6 of 6 trials
NCT07094711
The purpose of this study is to find out if the Mycobacterium bovis Bacillus Calmette Guerin (BCG) vaccine can be used safely to treat Mycobacterium avium complex (MAC) lung disease. Researchers will compare responses from patients with MAC lung disease after receiving an injection of BCG or placebo (a look-alike substance that contains no drug) Participants in the study: * Receive a BCG or placebo injection at UVA study center on Day 0 * Come to UVA study center on Day 60 * Come to UVA study center at the end of the study * Answer surveys and questionnaires about how you are doing * Have blood drawn 3 times, on injection day, day 60, and at end of study * Give the study team personal and demographic information * Discuss any new symptoms with the study team * Provide monthly sputum samples per usual care
NCT05824988
The incidence and prevalence of nontuberculous mycobacteria (NTM) infections have gradually increased over the years worldwide (1-3). In China, Mycobacterium avium complex (MAC) was the most prevalent NTM specie (4), while challenged by long treatment duration, frequent drug-induced adverse events, lack of treatment alternatives, poor treatment outcome and high recurrence rate (5, 6). In order to maximize the efficacy of the few available drugs and prevent the development of drug resistance, ensuring adequate plasma drug concentrations are of importance. Despite the role of pathogen susceptibility, determined by minimum inhibitory concentration (MIC), is non-negligible, the evidences regarding its association with treatment outcome are limited, especially for rifamycin and ethambutol. The difficulties in explaining the clinical values of MIC might partially be attributed to the lack of in vivo drug exposure data, which cannot be accurately predicted by the dose administered because of between-patient pharmacokinetic variability (7). Therapeutic drug monitoring (TDM) is a strategy to guide and personalize treatment by measuring plasma drug concentrations and pathogen susceptibility, which might have the potential to improve treatment response to MAC lung disease. In this observational study, the hypothesis is that the drug exposure and/or MIC of antimycobacterial drugs are correlated to the treatment response of MAC lung disease, which is assessed from the perspective of treatment outcome, mycobacterial culture negative conversion, lung function, radiological presentation and self-reported quality of life. Consenting adult patients with culture-positive MAC lung disease will be recruited in study hospital. Respiratory samples (sputum and/or bronchoalveolar lavage fluid) will be collected regularly for mycobacterial culture on the basis of BACTEC MGIT 960 system and MIC will be determined using a commercial broth microdilution plate. Drug concentrations will be measured at 1 and/or 6 months after treatment initiation using liquid chromatography tandem mass spectrometry (LC-MS/MS). The final treatment outcome is recorded at the end of MAC treatment and defined according to an NTM-NET consensus statement (8).
NCT00001039
To assess the feasibility of using culture and staining techniques to quantify tissue Mycobacterium avium Complex (MAC) burden in bone marrow. To correlate and compare changes in MAC bone marrow burden with quantitative MAC blood culture results at baseline and after 4 and 8 weeks of treatment. MAC is easiest to detect in the blood, although doctors generally believe that MAC in blood is just "spill-over" from infection of other parts of the body. Traditionally, studies of potential treatments for MAC focus only on MAC changes in the blood. This study compares MAC changes in blood to those in bone marrow, which is another tissue where MAC is often found.
NCT00000860
To determine if treatment of MAC infection in HIV-1 infected persons is associated with the decreases in plasma levels of TNF-alpha. Infection with MAC is a poor prognostic indicator in persons with AIDS. Evidence suggests that this poor outcome is not simply a reflection of greater immune impairment in AIDS patients with MAC infection, but rather may be a direct or indirect consequence of infection with mycobacterium. Survival of AIDS patients with MAC is shorter than those without MAC. Studies show that treatment for MAC improves the survival of MAC infected patients to nearly the survival of AIDS patients without MAC. Treatment of MAC with clarithromycin containing regimens is associated with decreased symptoms and prolonged survival. There is evidence, however, that mycobacterial infection may enhance propagation of the human immunodeficiency virus through mechanisms that may involve enhanced expression of pro inflammatory cytokines. It is unclear to what extent cytokine abnormalities contribute to this symptom complex and to what extent treatment of MAC infection will reverse these cytokine abnormalities.
NCT00001995
To determine if a drug regimen containing rifabutin will eradicate or decrease the numbers of Mycobacterium avium complex (MAC) organisms in blood, improve the symptoms associated with MAC infection, and increase survival in patients with AIDS. To assess the safety of the drug regimen.
NCT00002058
This study will examine the effectiveness of clofazimine in the prophylaxis of Mycobacterium avium complex infection in HIV infected individuals who are at risk to develop this untreatable opportunistic disease. In the absence of truly effective antiretroviral therapy, a potential mode of treatment of patients with HIV infection is to prevent the development of the life-threatening opportunistic infections. Current studies demonstrate a possible efficacy of clofazimine in the prophylaxis against Pneumocystis carinii pneumonia (PCP), the most common AIDS-defining opportunistic infection. Future studies will examine the potential for prophylaxis against the other opportunistic infections. This proposal hopes to define the role of prophylactic clofazimine in preventing the currently untreatable Mycobacterium avium complex infection. AMENDED: To include prophylaxis for Asymptomatic and ARC.