Trial reportClinical infectious diseases : an official publication of the Infectious Diseases Society of America2026
Omadacycline Monotherapy in Nontuberculous Mycobacterial Pulmonary Disease Caused by Mycobacterium abscessus: Results From a Phase 2, Double-blind, Randomized, Placebo-controlled Study.
Trial report in Clinical infectious diseases : an official publication of the Infectious Diseases Society of America, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
2 citing papers in PubMed.
- Efficacy of drug regimens containing omadacycline in a murine model ofFrontiers in microbiology · 2026Article
- Zebrafish larvae swim bladder serves as a model to studyMycobacteria (London, England) · 2026Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
12 authors.
Funding
Abstract
backgroundOmadacycline is an FDA-approved oral and intravenous treatment for adults with community-acquired bacterial pneumonia and acute bacterial skin and skin structure infection that demonstrates potent in vitro activity and in vivo efficacy versus Mycobacterium abscessus.
methodsA randomized, double-blind, placebo-controlled, multicenter phase 2 study of omadacycline monotherapy was conducted in adults with nontuberculous mycobacterial pulmonary disease (NTM-PD) caused by M. abscessus. Eligible patients meeting the diagnostic criteria for NTM-PD were randomized 1.5:1 to receive omadacycline 300 mg orally once daily or placebo for 84 days. Randomization was stratified by prior antibiotic treatment for M. abscessus (yes/no).
resultsSixty-six patients were randomized (41 omadacycline, 25 placebo). At baseline, cough, fatigue, mucus production, shortness of breath, and throat clearing were the most bothersome and common symptoms (68.2%-95.4% of patients). For the primary endpoint, 34.1% and 20.0% of omadacycline and placebo patients, respectively, were responders by definition 1 (improvement in symptom severity at day 84 for at least half of baseline symptoms) and 34.1% and 12.0%, respectively, were responders by definition 2 (definition 1 plus no deterioration in severity of any baseline symptom). Key secondary and exploratory clinical and microbiological endpoints also favored omadacycline compared with placebo. Four (9.8%) patients discontinued omadacycline therapy due to a treatment-emergent adverse event (TEAE). The most frequent omadacycline-related TEAEs were gastrointestinal, particularly nausea.
conclusionsResults consistently favored omadacycline monotherapy over placebo across several endpoints in NTM-PD caused by M. abscessus. Omadacycline was well tolerated; nausea was the most frequent TEAE. Further investigations are warranted.
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