Persistent recovery of pancreatic function in patients with cystic fibrosis after ivacaftor

Pediatr Pulmonol. 2020 Dec;55(12):3381-3383. doi: 10.1002/ppul.25065. Epub 2020 Oct 22.

Abstract

Exocrine pancreatic insufficiency (EPI), which leads to malabsorption and poor weight gain, is seen in 85% of patients with cystic fibrosis (CF). EPI is treated with pancreatic enzyme replacement therapy taken with each meal. The highly effective cystic fibrosis transmembrane conductance regulator (CFTR) modulator, ivacaftor, restores CFTR function in patients with responsive mutations. It is a widely held view that EPI in CF is irreversible due to the complete destruction of pancreatic ducts and acinar cells. We describe three pediatric CF patients with EPI who were started on ivacaftor, and subsequently showed evidence of restored exocrine pancreatic function with clinical and biochemical parameters.

Keywords: fecal elastase; pancreatic enzyme replacement therapy; pancreatitis.

Publication types

  • Case Reports

MeSH terms

  • Aminophenols / therapeutic use*
  • Child
  • Chloride Channel Agonists / therapeutic use*
  • Cystic Fibrosis / drug therapy*
  • Cystic Fibrosis Transmembrane Conductance Regulator / agonists
  • Cystic Fibrosis Transmembrane Conductance Regulator / genetics
  • Exocrine Pancreatic Insufficiency / drug therapy*
  • Female
  • Humans
  • Male
  • Mutation
  • Pancreas / drug effects
  • Quinolones / therapeutic use*

Substances

  • Aminophenols
  • CFTR protein, human
  • Chloride Channel Agonists
  • Quinolones
  • Cystic Fibrosis Transmembrane Conductance Regulator
  • ivacaftor