{"title":"Impact of Elexacaftor/Tezacaftor/Ivacaftor on Systemic Antibiotic Utilization in Pediatric Patients With Cystic Fibrosis.","authors":"Julianne Fava, Emily Stephan, Jessica Tansmore, Shahid Sheikh, Mariah Eisner, Kimberly J Novak","doi":"10.1002/ppul.71749","DOIUrl":null,"url":null,"abstract":"<p><strong>Introduction: </strong>Cystic fibrosis (CF) is an autosomal recessive disease resulting from mutations in the cystic fibrosis transmembrane conductance regulator (CFTR) gene. Recurrent respiratory infections are a common problem, and patients receive frequent antibiotics. Treatment of CF involves both symptomatic and underlying disease-targeting therapies. Elexacaftor/tezacaftor/ivacaftor (ETI), a disease-targeting therapy, combines two correctors and a potentiator to increase functioning of the CFTR channel. With better functioning channels, symptomatic improvement is expected in the form of decreased respiratory infections.</p><p><strong>Objective: </strong>To evaluate the change in antibiotic use following the initiation of ETI therapy in pediatric patients.</p><p><strong>Methods: </strong>This is a single-center, retrospective chart review conducted at Nationwide Children's Hospital (NCH) in Columbus, Ohio. Patients served as self-controls, compared before and after initiating ETI. The primary outcome was change in antibiotic days per patient-year. Secondary outcomes included change in use of specific antibiotics, enteral versus intravenous (IV) therapy, and different classes of antibiotics. The study was approved by the NCH institutional review board (IRB).</p><p><strong>Results: </strong>The study included 139 patients aged 6-18 years. The median antibiotic days per patient-year was 17 days pre-ETI and 6 days post-ETI (p < 0.001). There was a significant decrease in antibiotic days per patient-year for subgroups of IV antibiotics, enteral antibiotics, IV vancomycin, linezolid and tedizolid, anti-methicillin-resistant Staphylococcus aureus (MRSA) tetracyclines, other anti-MRSA medications (clindamycin and trimethoprim/sulfamethoxazole), aminoglycosides, anti-Pseudomonas aeruginosa (Psae) beta-lactams, and fluoroquinolones. There was no significant difference for carbapenems or non-anti-Psae beta-lactams.</p><p><strong>Conclusion: </strong>ETI therapy was associated with decreased antibiotic days for many therapeutic classes of both enteral and IV antibiotics.</p>","PeriodicalId":19932,"journal":{"name":"Pediatric Pulmonology","volume":"61 8","pages":"e71749"},"PeriodicalIF":2.4000,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13411607/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Pediatric Pulmonology","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1002/ppul.71749","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"PEDIATRICS","Score":null,"Total":0}
引用次数: 0
Abstract
Introduction: Cystic fibrosis (CF) is an autosomal recessive disease resulting from mutations in the cystic fibrosis transmembrane conductance regulator (CFTR) gene. Recurrent respiratory infections are a common problem, and patients receive frequent antibiotics. Treatment of CF involves both symptomatic and underlying disease-targeting therapies. Elexacaftor/tezacaftor/ivacaftor (ETI), a disease-targeting therapy, combines two correctors and a potentiator to increase functioning of the CFTR channel. With better functioning channels, symptomatic improvement is expected in the form of decreased respiratory infections.
Objective: To evaluate the change in antibiotic use following the initiation of ETI therapy in pediatric patients.
Methods: This is a single-center, retrospective chart review conducted at Nationwide Children's Hospital (NCH) in Columbus, Ohio. Patients served as self-controls, compared before and after initiating ETI. The primary outcome was change in antibiotic days per patient-year. Secondary outcomes included change in use of specific antibiotics, enteral versus intravenous (IV) therapy, and different classes of antibiotics. The study was approved by the NCH institutional review board (IRB).
Results: The study included 139 patients aged 6-18 years. The median antibiotic days per patient-year was 17 days pre-ETI and 6 days post-ETI (p < 0.001). There was a significant decrease in antibiotic days per patient-year for subgroups of IV antibiotics, enteral antibiotics, IV vancomycin, linezolid and tedizolid, anti-methicillin-resistant Staphylococcus aureus (MRSA) tetracyclines, other anti-MRSA medications (clindamycin and trimethoprim/sulfamethoxazole), aminoglycosides, anti-Pseudomonas aeruginosa (Psae) beta-lactams, and fluoroquinolones. There was no significant difference for carbapenems or non-anti-Psae beta-lactams.
Conclusion: ETI therapy was associated with decreased antibiotic days for many therapeutic classes of both enteral and IV antibiotics.
期刊介绍:
Pediatric Pulmonology (PPUL) is the foremost global journal studying the respiratory system in disease and in health as it develops from intrauterine life though adolescence to adulthood. Combining explicit and informative analysis of clinical as well as basic scientific research, PPUL provides a look at the many facets of respiratory system disorders in infants and children, ranging from pathological anatomy, developmental issues, and pathophysiology to infectious disease, asthma, cystic fibrosis, and airborne toxins. Focused attention is given to the reporting of diagnostic and therapeutic methods for neonates, preschool children, and adolescents, the enduring effects of childhood respiratory diseases, and newly described infectious diseases.
PPUL concentrates on subject matters of crucial interest to specialists preparing for the Pediatric Subspecialty Examinations in the United States and other countries. With its attentive coverage and extensive clinical data, this journal is a principle source for pediatricians in practice and in training and a must have for all pediatric pulmonologists.