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  • Title: Safety and efficacy of omadacycline by body mass index in patients with community-acquired bacterial pneumonia: Subanalysis from a randomized controlled trial.
    Author: Pai MP, Wilcox M, Chitra S, McGovern P.
    Journal: Respir Med; 2021 Aug; 184():106442. PubMed ID: 34058682.
    Abstract:
    OBJECTIVES: To examine the safety and efficacy of omadacycline by body mass index (BMI) in adults with community-acquired bacterial pneumonia (CABP) from a Phase III trial. METHODS: Patients hospitalized for suspected CABP were randomized 1:1 to receive intravenous omadacycline or moxifloxacin, with an optional transition to oral, for a total of 7-14 days. Early clinical response (ECR) was assessed 72-120 h after receipt of the first dose, and clinical success was assessed 5-10 days after the last dose (post-treatment evaluation [PTE]). ECR was defined as improvement in at least two CABP symptoms with no worsening of other symptoms or use of rescue antibacterial treatment; success at PTE was defined as resolution of signs and symptoms to the extent that further antibacterial therapy was unnecessary. Safety evaluations included treatment-emergent adverse events and laboratory measures. Between-treatment comparisons were made by World Health Organization BMI categories and by diabetes history. RESULTS: Distribution of patients in the normal weight, overweight, and obese subgroups was fairly even. Clinical success for omadacycline-treated patients at ECR were similar across ascending BMI groups (OMC: 82.9%, 80.5%, 76.9%; MOX: 88.6%, 80.7%, 76.9%). Outcomes by diabetes status were generally similar in omadacycline- and moxifloxacin-treated patients. Patients who had clinical success or clinical stability at ECR generally showed continued clinical success at PTE. Safety profiles for omadacycline and moxifloxacin were largely similar across BMI subgroups and by diabetes history. CONCLUSION: The omadacycline fixed-dosing strategy showed consistent safety and efficacy in patients with CABP of different body sizes.
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