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  • Title: Clarithromycin and ethambutol with or without clofazimine for the treatment of bacteremic Mycobacterium avium complex disease in patients with HIV infection.
    Author: Chaisson RE, Keiser P, Pierce M, Fessel WJ, Ruskin J, Lahart C, Benson CA, Meek K, Siepman N, Craft JC.
    Journal: AIDS; 1997 Mar; 11(3):311-7. PubMed ID: 9147422.
    Abstract:
    OBJECTIVE: To compare the efficacy of two- and three-drug regimens for treating Mycobacterium avium complex (MAC) bacteremia in patients with AIDS. DESIGN: Randomized open-label clinical trial. SETTING: Outpatient HIV specialty centers' clinics. PATIENTS: A total of 106 adults with AIDS and MAC bacteremia. INTERVENTIONS: Patients were treated with clarithromycin 500 mg twice daily and ethambutol 800-1,000 mg daily and were randomized to receive clofazimine 100 mg daily or no clofazimine. MAIN OUTCOME MEASURES: Quantitative blood MAC cultures, symptoms, adverse reactions and survival. RESULTS: Patients randomly assigned to three drugs had significantly higher baseline colony counts of MAC in blood than patients receiving two drugs. The proportion of patients becoming culture-negative was 65% in the two-drug group and 54% in the three-drug group. The median time to negative culture was 58 days for patients in the two-drug and 63 days for the three-drug group. At the last visit during treatment, the mean reduction in colony forming units/ml of MAC in blood was 1.8 log10 for the two-drug group and 2.3 log10 for the three-drug group. Improvement in fever and night sweats was reported by 87 and 89% of the two-drug patients and 84 and 86% of the three-drug patients. During the study, 38% of two-drug patients and 61% of three-drug patients died (P = 0.032), and time to death was shorter in patients treated with three drugs (P = 0.012). In a multivariate analysis, both assignment to clofazimine and high baseline colony counts of MAC bacteremia were significantly associated with death (P < 0.05). CONCLUSION: The addition of clofazimine to a regimen of clarithromycin and ethambutol for MAC bacteremia in AIDS patients does not contribute to clinical response and is associated with higher mortality.
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