ArticleTrials2025
Optimizing short-term antibiotic treatment in patients with acute cholangitis: study protocol for an open-label randomized controlled trial (the BOLT-P3 trial).
Article in Trials, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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16 authors.
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Abstract
backgroundAcute cholangitis (AC) frequently presents as a community-acquired infection and is associated with a high prevalence of antibiotic use among infectious diseases. The Tokyo Guidelines 2018 (TG18) recommend 4-7 days of antibiotic administration after biliary drainage. However, this recommendation lacks strong evidence of its effectiveness and is primarily based on heterogeneous clinical findings and expert opinions. Recent retrospective studies have advocated a shorter 1- to 3-day antibiotic course as effective for AC treatment, prompting the need to reassess the treatment duration to achieve therapeutic efficacy while minimizing resistance and adverse effects.
methodsWe designed a multicenter, non-blinded, randomized trial to evaluate the efficacy of short-course therapy compared to standard-course therapy for AC management. The short-course therapy group will receive 1-3 days of intravenous (IV) antibiotic treatment after successful biliary drainage compared to 4-7 days of IV antibiotics after successful biliary drainage for the standard-course therapy group. The primary outcome is the clinical cure rate within 14 days from the endoscopic retrograde cholangiopancreatography (ERCP) procedure. Participants will be allocated to either treatment course using a minimization method in a non-blinded, randomized manner, with stratification factors including condition severity and facility. We determined that 210 participants would be required to achieve a statistical power of 90% with a one-sided significance threshold of 2.5% and a non-inferiority limit of 10%. DISCUSSION: This phase 3 trial aims to determine the non-inferiority of short-course therapy over standard-course therapy. Shortening the duration of antibiotic administration may mitigate the emergence of resistant bacteria, adverse events, and reduce hospital stay length and healthcare costs. https://jrct.niph.go.jp/re/reports/detail/73862
trial registrationThis study was registered at the Japan Registry of Clinical Trials under registry number jRCT1031230709. Registered on 14 March 2024, https://jrct.niph.go.jp/re/reports/detail/73862.
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