Vertex Receives European CHMP Positive Opinion for ORKAMBI® (lumacaftor/ivacaftor) for Treatment of Children with Cystic Fibrosis Aged 2 to 5 Years Old with Most Common Form of the Disease
- If approved, lumacaftor/ivacaftor will be the first medicine in
“Cystic fibrosis is a chronic, progressive disease and it is important
to treat early to ensure the best possible outcomes for patients,” said
The submission was supported by data from a Phase 3 open-label safety study in 60 patients that showed treatment with lumacaftor/ivacaftor was generally well tolerated for 24 weeks, with a safety profile in these pediatric patients generally consistent with that in patients aged 6 years and older.
Lumacaftor/ivacaftor is already approved in
Cystic fibrosis is a rare, life-shortening genetic disease affecting approximately 75,000 people in
CF is caused by a defective or missing CFTR protein resulting from mutations in the CFTR gene. Children must inherit two defective CFTR genes — one from each parent — to have CF. There are approximately 2,000 known mutations in the CFTR gene. Some of these mutations, which can be determined by a genetic test, or genotyping test, lead to CF by creating non-working or too few CFTR proteins at the cell surface. The defective function or absence of CFTR protein results in poor flow of salt and water into and out of the cell in a number of organs. In the lungs, this leads to the build-up of abnormally thick, sticky mucus that can cause chronic lung infections and progressive lung damage in many patients that eventually leads to death. The median age of death is in the mid-to-late 20s.
About the Phase 3 open-label safety study
This CHMP positive opinion is based on a Phase 3 open-label safety study in 60 patients that showed treatment with lumacaftor/ivacaftor was generally well tolerated for 24 weeks, with a safety profile similar to that in patients aged 6 years and older. Improvements in sweat chloride, a secondary endpoint, were observed at week 24 (mean decrease in sweat chloride from baseline of 31.7 mmol/L; 95% CI: -35.7, -27.6, n=49). Researchers also saw changes in key growth parameters, which were also secondary endpoints in the study. The most common adverse event (≥30% overall) was cough (63%); most adverse events were mild or moderate in severity. Four patients experienced serious adverse events (2 infective pulmonary exacerbations of cystic fibrosis, 1 gastroenteritis viral, 1 constipation) and three patients discontinued treatment due to elevated transaminases without concurrent elevations in total bilirubin. These findings were presented at the 41st
About ORKAMBI® (lumacaftor/ivacaftor)
Lumacaftor/ivacaftor is a combination of lumacaftor, which is designed to increase the amount of mature protein at the cell surface by targeting the processing and trafficking defect of the F508del-CFTR protein, and ivacaftor, which is designed to enhance the function of the CFTR protein once it reaches the cell surface.
Vertex is a global biotechnology company that invests in scientific innovation to create transformative medicines for people with serious and life-threatening diseases. In addition to clinical development programs in CF, Vertex has more than a dozen ongoing research programs focused on the underlying mechanisms of other serious diseases.
Founded in 1989 in
Special Note Regarding Forward-looking Statements
This press release contains forward-looking statements as defined in the Private Securities Litigation Reform Act of 1995, including, without limitation, Dr. Kewalramani’s statement in the third paragraph of this press release. While Vertex believes the forward-looking statements contained in this press release are accurate, there are a number of factors that could cause actual events or results to differ materially from those indicated by such forward-looking statements. Those risks and uncertainties include, among other things, that Vertex could experience unforeseen delays in obtaining the
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