A randomised Phase II trial to evaluate the toxicity of high dose rifampicin to treat pulmonary tuberculosis

Autor: Jindani, A, Borgulya, G, de Patiño, IW, Gonzales, T, de Fernandes, RA, Shrestha, B, Atwine, D, Bonnet, C, Burgos, M, Dubash, F, Patel, N, Checkley, AM, Harrison, TS, Mitchison, DA
Jazyk: angličtina
Rok vydání: 2016
ISSN: 1027-3719
Popis: SETTING: Randomised Phase IIB clinical trial.\ud \ud OBJECTIVES: To assess whether increasing the dose of rifampicin (RMP) from 10 mg/kg to 15 or 20 mg/kg results in an increase in grade 3 or 4 hepatic adverse events and/or serious adverse events (SAE).\ud \ud METHODS: Three hundred human immunodeficiency virus negative patients with newly diagnosed microscopy-positive pulmonary tuberculosis (TB) were randomly assigned to one of three regimens: 1) the control regimen (R10), comprising daily ethambutol (EMB), isoniazid (INH), RMP and pyrazinamide for 8 weeks, followed by INH and RMP daily for 18 weeks; 2) Study Regimen 1 (R15), as above, with the RMP dose increased to 15 mg/kg body weight daily for the first 16 weeks; and 3) Study Regimen 2 (R20), as above, with RMP increased to 20 mg/kg. Serum alanine transferase (ALT) levels were measured at regular intervals.\ud \ud RESULTS: There were seven grade 3 increases in ALT levels, 1/100 (1%) among R10 arm patients, 2/100 (2%) in the R15 arm and 4/100 (4%) in the R20 arm (trend test P = 0.15). One (R15) patient developed jaundice, requiring treatment modification. There were no grade 4 ALT increases. There was a non-significant increase in culture negativity at 8 weeks with increasing RMP dosage: 75% (69/92) in R10, 82.5% (66/80) in R15 and 83.1% (76/91) R20 patients (P = 0.16).\ud \ud CONCLUSIONS: No significant increase in adverse events occurred when the RMP dose was increased from 10 mg/kg to 15 mg/kg or 20 mg/kg.
Databáze: OpenAIRE