Nitrofurantoin

PHILADELPHIA, PA, USA I March 25, 2025 I GSK plc (LSE/NYSE: GSK) today announced that the US Food and Drug Administration (FDA) has approved Blujepa (gepotidacin) for the treatment of female adults (≥40 kg) and pediatric patients (≥12 years, ≥40 kg) with uncomplicated urinary tract infections (uUTIs) caused by the following susceptible microorganisms: Escherichia coli , Klebsiella pneumoniae , Citrobacter freundii complex, Staphylococcus saprophyticus and Enterococcus faecalis . Discovered by GSK scientists, Blujepa is a first-in-class oral antibiotic with a novel mechanism of action that is part of GSK’s infectious diseases portfolio. Tony Wood, Chief Scientific Officer, GSK, said : “The approval of Blujepa is a crucial milestone with uUTIs among the most common infections in women. We are proud to have developed Blujepa , the first in a new class of oral antibiotics for uUTIs in nearly three decades, and to bring another option to patients given recurrent infections and rising rates of resistance to existing treatments.” uUTIs are the most common infection in women, impacting up to 16 million women in the US annually. 1-4 Over half of all women are affected by uUTI in their lifetime, 5 with approximately 30% suffering from at least one recurrent episode which can cause significant patient burden, including discomfort and restriction of daily activities. 6 New treatments are needed as the number of uUTIs caused by drug-resistant bacteria is increasing which can result in higher treatment failure rates. 7 Thomas Hooton, MD, Professor of Clinical Medicine, University of Miami School of Medicine said: “For many, uUTIs can be a burden that severely impacts daily life. With an increasing number of patients experiencing recurrent infections, there remains a clear need for continued research of antimicrobials to help address ongoing patient challenges and the strain on healthcare systems.” The approval is based on positive results from the pivotal phase III EAGLE-2 and EAGLE-3 trials which demonstrated non-inferiority to nitrofurantoin, one of the leading current standard of care options for uUTI, in female adults (≥40 kg) and pediatric patients (≥12 years, ≥40 kg) with a confirmed uUTI. In EAGLE-2, Blujepa demonstrated non-inferiority in therapeutic success which occurred in 50.6% (162/320) of participants compared to 47.0% (135/287) for nitrofurantoin (covariate-adjusted treatment difference 4.3%, 95% CI (-3.6, 12.1)). In EAGLE-3, Blujepa demonstrated statistically significant superiority versus nitrofurantoin (one-sided p-value 0.0003). Therapeutic success occurred in 58.5% (162/277) of participants compared to 43.6% (115/264) for nitrofurantoin (covariate-adjusted treatment difference 14.6%, 95% CI (6.4, 22.8)). The safety and tolerability profile of Blujepa in the EAGLE-2 and EAGLE-3 phase III trials was consistent with previous trials. The most commonly reported adverse events (AEs) in Blujepa participants were gastrointestinal (GI). Diarrhea was the most common (16% of participants), followed by nausea (9%). Of the participants who reported GI AEs in the Blujepa group, the most common maximum severity was mild (69% Grade 1) and moderate (28% Grade 2). Participants with Grade 3 GI events accounted for 3% of all patients with GI events and occurred in <1% of all participants. There was one drug-related serious adverse event in each treatment arm ( Blujepa and nitrofurantoin) across the two trials. US commercial launch is planned in 2H 2025. The development of Blujepa (gepotidacin) has been funded in part with federal funds from the US Department of Health and Human Services, Administration for Strategic Preparedness and Response, Biomedical Advanced Research and Development Authority (BARDA), under Other Transaction Agreement number HHSO100201300011C and with federal funds awarded by the Defense Threat Reduction Agency under agreement number HDTRA1-07-9-0002. About Blujepa (gepotidacin) Blujepa , discovered by GSK scientists, is a bactericidal, first-in-class triazaacenaphthylene antibiotic that inhibits bacterial DNA replication by a distinct binding site, a novel mechanism of action and for most pathogens, provides well-balanced inhibition of two different Type II topoisomerase enzymes. This provides activity against most target uropathogens (such as Escherichia coli and Staphylococcus saprophyticus ), and Neisseria gonorrhoeae , including isolates resistant to current antibiotics. Due to the well-balanced inhibition for most pathogens, Blujepa target-specific mutations in both enzymes are needed to significantly affect susceptibility to Blujepa . Therefore, a lower potential for resistance development is expected. Efficacy and safety in patients have been demonstrated in uUTI and gonorrhea phase III clinical trials, including in patients with drug-resistant pathogens. Please see full Prescribing Information including Medication Guide, available here . About the EAGLE (Efficacy of Antibacterial Gepotidacin Evaluated) phase III program The global phase III clinical program for Blujepa (gepotidacin) in adults and pediatric patients consists of three trials: EAGLE-2 and EAGLE-3 (non-inferiority uUTI trials) compared the efficacy and safety of Blujepa (1,500mg administered orally twice daily for five days) to nitrofurantoin (100mg administered orally twice daily for five days) with 1531 and 1605 female adults and pediatric patients with uUTIs, respectively. Across both trials, the planned duration of follow-up for participants was approximately 28 days, and the primary endpoint, a stringent composite measure of efficacy, was the combined clinical and microbiological response at the Test-of-Cure (ToC) visit (days 10-13) in patients with qualifying uropathogens susceptible to nitrofurantoin. EAGLE-1 (non-inferiority uncomplicated urogenital gonorrhea trial) compared the efficacy and safety of Blujepa to ceftriaxone plus azithromycin in 628 patients with uncomplicated urogenital gonorrhea caused by N. gonorrhoeae . GSK in infectious diseases GSK has pioneered innovation in infectious diseases for over 70 years, and the Company’s pipeline of medicines and vaccines is one of the largest and most diverse in the industry, with a goal of developing preventive and therapeutic treatments for multiple disease areas or diseases with high unmet needs globally. Our expertise and capabilities in infectious disease strongly position us to help prevent disease and mitigate the challenge of antimicrobial resistance (AMR). In antimicrobials, in addition to gepotidacin, GSK entered into an exclusive license agreement with Spero Therapeutics, Inc. in September 2022 to add tebipenem HBr, a late-stage antibiotic and potential treatment for complicated urinary tract infections (cUTIs), to the pipeline and are currently enrolling for PIVOT-PO, a phase III trial. In March 2023, GSK announced an exclusive license agreement with Scynexis for Brexafemme (ibrexafungerp tablets), a first-in-class antifungal for the treatment of vulvovaginal candidiasis (VVC) and reduction in the incidence of recurrent VVC. BLUJEPA (gepotidacin) tablets, for oral use Indication(s) and Important Safety Information (ISI) INDICATION BLUJEPA is indicated for the treatment of female adult and pediatric patients 12 years of age and older weighing at least 40 kilograms (kg) with uncomplicated urinary tract infections (uUTI) caused by the following susceptible microorganisms: Escherichia coli , Klebsiella pneumoniae , Citrobacter freundii complex, Staphylococcus saprophyticus , and Enterococcus faecalis . Usage to Reduce Development of Drug-Resistant Bacteria To reduce the development of drug-resistant bacteria and maintain the effectiveness of BLUJEPA and other antibacterial drugs, BLUJEPA should be used only to treat infections that are proven or strongly suspected to be caused by bacteria. About GSK GSK is a global biopharma company with a purpose to unite science, technology, and talent to get ahead of disease together. Find out more at gsk.com . References 1 Advani SD, et al. Poster presented at: ISPOR 2024; May 5-8, 2024. Presentation EPH17. 2 Foxman B, et al. Urinary tract infection: self-reported incidence and associated costs. Ann Epidemiol . 2000;10(8):509-15. 3 Foxman B. Urinary Tract Infection Syndromes: Occurrence, Recurrence, Bacteriology, Risk Factors, and Disease Burden. Infect Dis Clin North Am . 2014 28(1):1-13. 4 United States Census Bureau. Age and Sex Composition: 2020. [Available from: https://www2.census.gov/library/publications/decennial/2020/census-briefs/c2020br-06.pdf Last accessed March 2025]. 5 Czajkowski, K, et al. Urinary tract infection in women. Prz Menopauzalny . 2021;20(1):40-7. 6 Little P, et al. Presentation, pattern, and natural course of severe symptoms, and role of antibiotics and antibiotic resistance among patients presenting with suspected uncomplicated urinary tract infection in primary care: observational study. BMJ . 2010;340:b5633. 7 Kaye KS, et al. Antimicrobial resistance trends in urine Escherichia coli isolates from adult and adolescent females in the United States from 2011 to 2019: rising ESBL strains and impact on patient management. Clin Infect Dis 2021;73:1992–1999. SOURCE: GlaxoSmithKline

3月25日，GSK宣布FDA已批准Blujepa（Gepotidacin）用于治疗单纯性尿路感染（uUTI）女性成人患者（≥40kg）和青少年患者（≥12岁，≥40kg）。这是近30年来首个获批治疗uUTI的新型口服抗生素。 Gepotidacin是一种靶向拓扑异构酶II（Top II）的first in class新型口服抗生素，其结构属于三氮杂苊烯类，不同于现有的喹诺酮类抗生素。相比于喹诺酮类抗生素（单一抑制Top II或Top IV），Gepotidacin具有全新的作用机制，可选择性且均衡抑制细菌DNA回旋酶（Top II的一种）和Top IV，从而抑制细菌DNA复制。由于Gepotidacin对Top II和Top IV为均衡抑制，因此，当这两种酶均发生突变时才会显著影响细菌对Gepotidacin的敏感性。 Gepotidacin结构 FDA此次批准主要是基于两项关键性III期研究（EAGLE-2和EAGLE-3）的积极数据。EAGLE-2研究和EAGLE-3研究均为全球性、随机、双盲、非劣效性（界限值为10%）临床试验（n=3136），评估了Gepotidacin（1500mg，每日2次）对比呋喃妥因（100mg，每日2次）治疗uUTI的有效性和安全性。研究的主要终点为第10-13天治愈检验期（TOC）访视时产生治疗应答（包括临床应答和微生物学应答）的患者数量。 在EAGLE-2研究中，Gepotidacin组和呋喃妥因组分别有50.6%（162/320）和47.0%（135/287）的患者实现“治疗成功”；在EAGLE-3研究中，Gepotidacin组和呋喃妥因组分别有58.5%（162/277）和43.6%（115/264）的患者实现“治疗成功”。此外，在治疗失败风险更高的关键亚组中，Gepotidacin也表现出一致的非劣效于呋喃妥因的疗效，包括大肠杆菌病原体对其他抗生素耐药的患者、有复发史的患者和50岁以上的患者。 EAGLE-2研究和EAGLE-3研究主要结果 （来源：GSK官网） Gepotidacin组最常报告的不良事件（AE）是胃肠道反应，其中腹泻（16%）和恶心（9%）较为常见。不过这些AE的严重程度大多数为轻度（1级，69%）和中度（2级，28%）。 非复杂性尿路感染 (uUTI) 是最常见的门诊感染，超过一半的女性在其一生中会患上一次uUTI，其中30%的患者为复发性uUTI。据估计，美国每年约有1600万例uUTI女性患者。 Copyright © 2025 PHARMCUBE. All Rights Reserved. 欢迎转发分享及合理引用，引用时请在显要位置标明文章来源；如需转载，请给微信公众号后台留言或发送消息，并注明公众号名称及ID。 免责申明：本微信文章中的信息仅供一般参考之用，不可直接作为决策内容，医药魔方不对任何主体因使用本文内容而导致的任何损失承担责任。