Bacterial lysates (OM-85 BV): a cost-effective proposal in order to contrast antibiotic resistance
Abstract
BACKGROUND: Chronic Obstructive Pulmonary Disease (COPD) is one of the most frequent pathologies in which antibiotics are used because 50% of the exacerbations are attributable to a bacterial infection. The aims of our study were: i) to perform a meta-analysis on the efficacy of the bacterial lysate OM-85 BV in preventing acute exacerbations in patients with COPD; ii) to evaluate whether this preventive treatment can lead to significant savings for the National Health Service (NHS).
METHODS: A systematic research was conducted in the electronic database MEDLINE (PubMed) in June 2017-July 2020, collecting evidences without time restrictions. Only randomized controlled trials (RCTs) were included. The keywords used were "OM 85 BV AND chronic bronchitis" and "OM 85 BV AND COPD". A cost-effectiveness analysis (CEA) was performed considering the costs for a treatment with OM-8BV, the costs for the treatment of an acute exacerbation and the number of prevented exacerbations.
RESULTS: 59 publications were found, but the meta-analysis was conducted on 13 studies that met the inclusion criteria. OM-85 BV is responsible of a statistically significant reduction in the mean number of COPD exacerbations (p < 0.01; WMD = -0.86; CI 95%: -1.38, -0.34) and in the days of antibiotic therapy (p < 0.01; WMD = -9.49; CI 95%: -11.93, -7.05). The cost-effectiveness ratio with a negative value is in favor to treatment.
CONCLUSIONS: OM-85 BV is effective in reducing exacerbations, and could lead to…
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