Vertex Receives European CHMP Positive Opinion for KALYDECO® (ivacaftor) for Children and Adolescents With Cystic Fibrosis Between the Ages 6 Months and 18 Years With the R117H Mutation in the CFTR Gene

Vertex Pharmaceuticals Incorporated (Nasdaq: VRTX) today announced that the European Medicines Agency’s (EMA) Committee for Medicinal Products for Human Use (CHMP) adopted a positive opinion for the label extension of KALYDECO^® (ivacaftor), to include the treatment of children and adolescents with cystic fibrosis (CF), ages 6 months and older weighing at least 5 kg who have the R117H mutation in the cystic fibrosis transmembrane conductance regulator (CFTR) gene.

“Today’s announcement is important for young people with CF, as early intervention and treatment of this devastating and progressive disease is key to keeping patients healthier longer,” said Carmen Bozic, M.D., Executive Vice President and Chief Medical Officer at Vertex. “This milestone also brings us one step closer to achieving our ultimate goal of bringing medicines forward to all people with CF.”

The European Commission will now review the CHMP’s positive opinion, and should they issue a favorable adoption, KALYDECO^® (ivacaftor) will be the first and only approved medicine in Europe to treat the underlying cause of CF in patients ages 6 months and older with the R117H mutation. In countries where long-term reimbursement agreements have been secured, KALYDECO^® (ivacaftor), if approved, would be available to eligible patients shortly after Marketing Authorization. In Germany, the medicine would be available at Marketing Authorization. In all other countries, we will work closely with relevant authorities in Europe to secure access for eligible patients quickly.

In Europe, KALYDECO^® (ivacaftor) is already approved for the treatment of people with CF ages 18 and older with the R117H mutation, and children ages 6 months and older weighing at least 5 kg who have one of the following mutations in the CFTR gene: G551D, G1244E, G1349D, G178R, G551S, S1251N, S1255P, S549N or S549R.

About Cystic Fibrosis

Cystic Fibrosis (CF) is a rare, life-shortening genetic disease affecting approximately 75,000 people worldwide. CF is a progressive, multi-system disease that affects the lungs, liver, GI tract, sinuses, sweat glands, pancreas and reproductive tract. CF is caused by a defective and/or missing CFTR protein resulting from certain mutations in the CFTR gene. Children must inherit two defective CFTR genes — one from each parent — to have CF. While there are many different types of CFTR mutations that can cause the disease, the vast majority of all people with CF have at least one F508del mutation. These mutations, which can be determined by a genetic test, or genotyping test, lead to CF by creating non-working and/or too few CFTR proteins at the cell surface. The defective function and/or absence of CFTR protein results in poor flow of salt and water into and out of the cells in a number of organs. In the lungs, this leads to the buildup 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 early 30s.

About KALYDECO^® (ivacaftor)

Ivacaftor is the first medicine to treat the underlying cause of CF in people with specific mutations in the CFTR gene. Known as a CFTR potentiator, ivacaftor is an oral medicine designed to keep CFTR proteins at the cell surface open longer to improve the transport of salt and water across the cell membrane, which helps hydrate and clear mucus from the airways.

About Vertex

Vertex is a global biotechnology company that invests in scientific innovation to create transformative medicines for people with serious diseases. The company has multiple approved medicines that treat the underlying cause of cystic fibrosis (CF) — a rare, life-threatening genetic disease — and has several ongoing clinical and research programs in CF. Beyond CF, Vertex has a robust pipeline of investigational small molecule medicines in other serious diseases where it has deep insight into causal human biology, including pain, alpha-1 antitrypsin deficiency and APOL1-mediated kidney diseases. In addition, Vertex has a rapidly expanding pipeline of genetic and cell therapies for diseases such as sickle cell disease, beta thalassemia, Duchenne muscular dystrophy and type 1 diabetes mellitus.

Founded in 1989 in Cambridge, Mass., Vertex's global headquarters is now located in Boston's Innovation District and its international headquarters is in London, UK. Additionally, the company has research and development sites and commercial offices in North America, Europe, Australia and Latin America. Vertex is consistently recognized as one of the industry's top places to work, including 10 consecutive years on Science magazine's Top Employers list and top five on the 2019 Best Employers for Diversity list by Forbes.

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. Bozic’s statements in the second paragraph of this press release, and statements regarding our expectations for the approval and availability of KALYDECO^® in Europe, and our plans for securing access to KALYDECO^® for eligible patients in Europe. While Vertex believes the forward-looking statements contained in this press release are accurate, these forward-looking statements represent the company's beliefs only as of the date of this press release and 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 data from the company's development programs may not support registration or further development of its compounds due to safety, efficacy or other reasons, risks related to obtaining and commercializing KALYDECO^® in Europe, and other risks listed under Risk Factors in Vertex's annual report and quarterly reports filed with the Securities and Exchange Commission and available through the company's website at www.vrtx.com. Vertex disclaims any obligation to update the information contained in this press release as new information becomes available.

(VRTX-GEN)

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