Abstract | RATIONALE: OBJECTIVES: METHODS: In a preliminary open-label study, we randomly assigned newly diagnosed, but as-yet untreated, patients with disease caused by Mycobacterium avium complex without HIV infection to either the three-drug or the two-drug regimen for 12 months. The primary endpoint was the conversion of sputum cultures to negative after 12 months of treatment. Patient data were analyzed using the intention-to-treat method. MEASUREMENTS AND MAIN RESULTS: Of 119 eligible patients, 59 were assigned to the three-drug regimen and 60 to the two-drug regimen. The rate of sputum culture conversion was 40.6% with the three-drug regimen and 55.0% with the two-drug regimen (difference, -14.4% [95% confidence interval, -32.1 to 3.4]). The incidence of adverse events leading to the discontinuation of treatment was 37.2 and 26.6% for the three-drug and the two-drug regimens, respectively. CONCLUSIONS: This preliminary study suggests that treatment with clarithromycin and ethambutol is not inferior to treatment with clarithromycin, ethambutol, and rifampicin for Mycobacterium avium complex lung disease. Our findings justify a larger clinical trial to compare long-term clinical outcomes for the two treatment regimens. Clinical trial registered with http://www.umin.ac.jp/english/ (UMIN000002819).
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Authors | Seiichi Miwa, Masahiro Shirai, Mikio Toyoshima, Toshihiro Shirai, Kazumasa Yasuda, Koshi Yokomura, Takashi Yamada, Masafumi Masuda, Naoki Inui, Kingo Chida, Takafumi Suda, Hiroshi Hayakawa |
Journal | Annals of the American Thoracic Society
(Ann Am Thorac Soc)
Vol. 11
Issue 1
Pg. 23-9
(Jan 2014)
ISSN: 2325-6621 [Electronic] United States |
PMID | 24298907
(Publication Type: Journal Article, Randomized Controlled Trial)
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Chemical References |
- Anti-Bacterial Agents
- Antibiotics, Antitubercular
- Antitubercular Agents
- Ethambutol
- Clarithromycin
- Rifampin
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Topics |
- Aged
- Aged, 80 and over
- Anti-Bacterial Agents
(therapeutic use)
- Antibiotics, Antitubercular
(therapeutic use)
- Antitubercular Agents
(therapeutic use)
- Clarithromycin
(therapeutic use)
- Drug Therapy, Combination
- Ethambutol
(therapeutic use)
- Female
- Humans
- Male
- Middle Aged
- Mycobacterium avium Complex
(isolation & purification)
- Mycobacterium avium-intracellulare Infection
(drug therapy)
- Rifampin
(therapeutic use)
- Sputum
(microbiology)
- Treatment Outcome
- Tuberculosis, Pulmonary
(drug therapy)
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