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The Frequency and Incidence of QT Prolongation with Extended Use of Bedaquiline or Delamanid in a Large, Multi-Country MDR/RR-TB Cohort
Clinical Infectious Diseases ( IF 8.2 ) Pub Date : 2024-12-11 , DOI: 10.1093/cid/ciae601
Uzma Khan, Michael Rich, Molly Franke, Nathalie Lachenal, Saman Ahmed, Amsalu Bekele, Afshan K Isani, Catherine Hewison, Cut Yulia Indah Sari, Cecilio L Tan, Francis Varaine, Edwin Herrera Flores, Fauziah Asnely Putri, Jamil Faqirzai, Jude Beauchamp, Luan Nguyen Quang Vo, Muhammad Rafi Siddiqui, Kwonjune Seung, Mathieu Bastard, Patrick Nkunkanyirazo, Nana Kiria, Munira Khan, Yerkebulan Algozhin, Nara Melikyan, Nazis Arefin Saki, Stalz C Vilbrun, Razia Fatima, Ye Yint Naing, Shirajul Islam, Shahid Mamsa, Carole Mitnick, Helena Huerga, Palwasha Y Khan

Background The 2022 WHO guidelines on multi-drug/rifampicin resistant tuberculosis (MDR/RR-TB) recommend six months of bedaquiline (Bdq) in the all-oral 9-month shorter regimen and six months or longer for Bdq and delamanid (Dlm) in the 18-20-month longer regimen. However, lack of evidence on extended treatment using Bdq or Dlm has limited their use to six months. We examine the frequency and incidence of QT prolongation based on duration of Bdq and/or Dlm use in longer regimens. Methods We analyzed a prospective cohort of MDR/RR-TB patients from 16 countries who initiated treatment with Bdq and/or Dlm containing regimens from 1 April 2015-30 September 2018. Data were systematically collected using a shared protocol. The outcome of interest was the first clinically relevant prolonged QT interval (grade 3 or above) or a Serious Adverse Event (SAE) involving prolonged QT of any grade. Results Among 2,553 patients, 59% received >6 months of Bdq and/or Dlm. Of these, 579 (20.9%) patients experienced a prolonged QT event, the majority (95.5%) being grade 1 or 2. Sixty-four(2.5%) patients experienced the outcome of interest with only 12 (0.5%) having ≥ 1 QT prolonging drugs permanently suspended. The incidence rate of the first prolonged QT event was highest in the first six months of treatment and lower in subsequent six-month periods. Conclusion We demonstrate that Bdq and/or Dlm use beyond six months is safe in longer MDR/RR-TB regimens with most clinically relevant QT prolongation events occurring in the first six months. ECG monitoring for early identification of QT prolongating events is possible in programmatic conditions.

中文翻译:


在大型多国 MDR/RR-TB 队列中长期使用贝达喹啉或德拉马尼德的 QT 间期延长的频率和发生率



背景 2022 年 WHO 多药/利福平耐药结核病指南 (MDR/RR-TB) 建议在全口服 9 个月较短的方案中使用 6 个月的贝达喹啉 (Bdq),在 18-20 个月的较长方案中给予 Bdq 和德拉马尼 (Dlm) 6 个月或更长时间。然而,缺乏使用 Bdq 或 Dlm 进行延长治疗的证据,将其使用限制在 6 个月。我们根据 Bdq 的持续时间和/或 Dlm 的使用时间检查较长方案中 QT 间期延长的频率和发生率。方法 我们分析了来自 16 个国家的 MDR/RR-TB 患者前瞻性队列,这些患者在 2015 年 4 月 1 日至 2018 年 9 月 30 日期间开始使用 Bdq 和/或含有 Dlm 的方案进行治疗。使用共享协议系统地收集数据。感兴趣的结果是第一个临床相关的 QT 间期延长(3 级或以上)或涉及任何级别 QT 延长的严重不良事件 (SAE)。结果 在 2,553 例患者中,59% 接受了 >6 个月的 Bdq 和/或 Dlm。其中,579 例 (20.9%) 患者经历了延长的 QT 事件,大多数 (95.5%) 为 1 级或 2 级。64 例 (2.5%) 患者经历了感兴趣的结局,只有 12 例 (0.5%) 患者永久停用了 ≥ 1 种 QT 间期延长药物。首次延长 QT 事件的发生率在治疗的前 6 个月最高,在随后的 6 个月期间较低。结论 我们证明,在较长的 MDR/RR-TB 方案中,Bdq 和/或 Dlm 使用超过 6 个月是安全的,大多数临床相关的 QT 延长事件发生在前 6 个月。在程序化条件下,心电图监测可及早识别 QT 间期延长事件。
更新日期:2024-12-11
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