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  • Title: Fixed-dose combination chemotherapy (Rifater/Rifinah) for active pulmonary tuberculosis in Taiwan: a two-year follow-up.
    Author: Su WJ, Perng RP.
    Journal: Int J Tuberc Lung Dis; 2002 Nov; 6(11):1029-32. PubMed ID: 12475151.
    Abstract:
    SETTING: Veterans General Hospital-Taipei, Taiwan. OBJECTIVE: To assess the efficacy and safety of a fixed-dose combination (FDC) of Rifater (RFT)/Rifinah (RFN) in the treatment of newly diagnosed smear-positive pulmonary tuberculosis. DESIGN: Patients were randomly assigned to two 6-month short-course chemotherapy regimens. One group of patients was treated with FDCs and another was given the four component drugs (INH, RMP, EMB and PZA) as separate formulations. RESULTS: The 105 patients enrolled in the study were divided into two treatment groups. Fifty-one patients who had completed treatment without interruption, 26 in the FDC group and 25 in the separate regimen, were eligible for analysis at the end of 2 years. Among the patients with a drug susceptibility test result available, four in the FDC group had bacilli resistant to pyrazinamide. In the separate regimen group, two patients had bacilli resistant to ethambutol and six had bacilli resistant to pyrazinamide. The two regimens were of similar effectiveness with regard to sputum conversion, compliance and radiological improvement. No patient with FDC treatment developed gastointestinal symptoms, visual disturbance or peripheral neuropathy (P < 0.05). However, FDC treatment resulted in drug-induced fever in one patient. One patient (3.8%) in the FDC group relapsed 5 months after completing treatment. CONCLUSION: This study suggests that the two regimens had similar effectiveness in the treatment of smear-positive pulmonary tuberculosis. However, the fewer adverse drug events among those patients treated with the FDC regimen suggests that it has a better safety profile.
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