Effect of CFTR Modulators on Anthropometric Parameters in Individuals with Cystic Fibrosis: An Evidence Analysis Center Systematic Review

Author(s):  
Julianna Bailey ◽  
Mary Rozga ◽  
Catherine M. McDonald ◽  
Ellen K. Bowser ◽  
Kristen Farnham ◽  
...  
2019 ◽  
Vol 3 (Supplement_1) ◽  
Author(s):  
Jessica Alvarez ◽  
Julianna Bailey ◽  
Ellen Bowser ◽  
Kristen Farnham ◽  
Mark Mangus, Sr. ◽  
...  

Abstract Objectives Individuals with cystic fibrosis (CF) are at high risk for malnutrition and poor growth. New drugs that modulate CF transmembrane receptor (CFTR) function are available, although their effects on anthropometric parameters are not clear. This systematic review aimed to determine if various CFTR modulator therapies affect weight and growth parameters in individuals with CF. Methods A literature search was conducted using MEDLINE, CINAHL and Embase databases for peer-reviewed, randomized controlled trials (RCT) published from January 2002 to May 2018 that examined the effect of CFTR modulation therapy on weight and growth parameters in children and adults with CF. Articles were screened for relevance, data was extracted and summarized, and risk of bias was assessed to determine the quality of evidence. Results A total of 612 original articles were identified, and 13 articles representing 10 RCTs were included in qualitative synthesis and three were included in quantitative synthesis. All but one RCT demonstrated low risk of bias. The targeted class of CFTR mutation varied by RCT. Studies indicated that, in children and adults with CF with class III mutations, ivacaftor treatment alone increased weight and BMI (4 RCTs), but it did not influence growth in individuals with class II (1 RCT) or class IV mutations (1 RCT). Treatment with ivacaftor + lumacaftor in adults homozygous for the F508del CFTR mutation (class II) increased BMI following 24 weeks of treatment (2 RCTs), but there was no effect in adults heterozygous for the mutation treated for 8 weeks (1 RCT). Treatment with lumacaftor + tezacaftor in individuals ages 12–20 years with class II mutations did not change growth parameters (1 RCT). Conclusions Effects of CFTR modulators on increasing weight and growth in individuals with CF are likely dependent on the therapy formulation (single vs combination therapy) and the targeted CFTR mutation. Whereas ivacaftor alone increases weight and growth parameters in individuals with class III mutations, ivacaftor + lumacaftor is more effective at increasing BMI in adults homozygous for the class II F508del CFTR mutation. Additional studies are needed to determine effects of other CFTR modulator drugs on growth parameters in individuals with varying CFTR mutations. Funding Sources Academy of Nutrition and Dietetics/Medical Nutrition DPG, National Institutes of Health.


2019 ◽  
Vol 119 (11) ◽  
pp. 1921-1943 ◽  
Author(s):  
Rima Itani Al-Nimr ◽  
Rubina Hakeem ◽  
Julie M. Moreschi ◽  
Sina Gallo ◽  
Joann M. McDermid ◽  
...  

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Al-Rahim R. Habib ◽  
Majid Kajbafzadeh ◽  
Sameer Desai ◽  
Connie L. Yang ◽  
Kate Skolnik ◽  
...  

2020 ◽  
Vol 120 (4) ◽  
pp. 669-708 ◽  
Author(s):  
Annalynn Skipper ◽  
Anne Coltman ◽  
Jennifer Tomesko ◽  
Pam Charney ◽  
Judith Porcari ◽  
...  

2020 ◽  
Vol 120 (5) ◽  
pp. 898-924.e4 ◽  
Author(s):  
Sina Gallo ◽  
Joann M. McDermid ◽  
Rima Itani Al-Nimr ◽  
Rubina Hakeem ◽  
Julie M. Moreschi ◽  
...  

2020 ◽  
Vol 10 (1) ◽  
pp. 23
Author(s):  
Renée V. E. Dagenais ◽  
Victoria C. Su ◽  
Bradley S. Quon

Cystic fibrosis transmembrane conductance regulator (CFTR) modulator therapies target the underlying cause of cystic fibrosis (CF), and are generally well-tolerated; however, real-world studies indicate the frequency of discontinuation and adverse events (AEs) may be higher than what was observed in clinical trials. The objectives of this systematic review were to summarize real-world AEs reported for market-available CFTR modulators (i.e., ivacaftor (IVA), lumacaftor/ivacaftor (LUM/IVA), tezacaftor/ivacaftor (TEZ/IVA), and elexacaftor/tezacaftor/ivacaftor (ELX/TEZ/IVA)), and to identify ways in which the pharmacist on CF healthcare teams may contribute to mitigating and managing these AEs. The MEDLINE, EMBASE, CINAHL, and Web of Science Core Collection online databases were searched from 2012 to 1 Aug 2020. Full manuscripts or conference abstracts of observational studies, case series, and case reports were eligible for inclusion. The included full manuscripts and conference abstracts comprised of 54 observational studies, 5 case series, and 9 case reports. The types of AEs reported generally aligned with what have been observed in clinical trials. LUM/IVA was associated with a higher frequency of respiratory-related AE and discontinuation in real-world studies. A signal for mental health and neurocognitive AEs was identified with all 4 CFTR modulators. A systematic approach to monitoring for AEs in people with CF on CFTR modulators in the real-world setting is necessary to help better understand potential AEs, as well as patient characteristics that may be associated with higher risk of certain AEs. Pharmacists play a key role in the safe initiation and monitoring of people with CF on CFTR modulator therapies.


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