Register Now
Why register?
Login
 The leading web portal for pharmacy resources, news, education and careers May 25, 2017
Pharmacy Choice - Pharmaceutical News - FDA Expands Approved Use of Kalydeco to Treat Additional Mutations of Cystic Fibrosis - May 25, 2017

Pharmacy News Article

 5/18/17 - FDA Expands Approved Use of Kalydeco to Treat Additional Mutations of Cystic Fibrosis

WASHINGTON, May 17 The U.S. Department of Health and Human Services' Food and Drug Administration issued the following news release:

The U.S. Food and Drug Administration today expanded the approved use of Kalydeco (ivacaftor) for treating cystic fibrosis. The approval triples the number of rare gene mutations that the drug can now treat, expanding the indication from the treatment of 10 mutations, to 33. The agency based its decision, in part, on the results of laboratory testing, which it used in conjunction with evidence from earlier human clinical trials. The approach provides a pathway for adding additional, rare mutations of the disease, based on laboratory data.

"Many rare cystic fibrosis mutations have such small patient populations that clinical trial studies are not feasible," said Janet Woodcock, M.D., director of the FDA's Center for Drug Evaluation and Research. "This challenge led us to using an alternative approach based on precision medicine, which made it possible to identify certain gene mutations that are likely to respond to Kalydeco.

Cystic fibrosis affects the cells that produce mucus, sweat and digestive juices. These secreted fluids are normally thin and slippery due to the movement of sufficient ions (chloride) and water in and out of the cells. People with the progressive disease have a defective cystic fibrosis transmembrane conductance regulator (CFTR) gene that can't regulate the movement of ions and water, causing the secretions to become sticky and thick. The secretions build up in the lungs, digestive tract and other parts of the body leading to severe respiratory and digestive problems, as well as other complications such as infections and diabetes.

Results from an in vitro cell-based model system have been shown to reasonably predict clinical response to Kalydeco. When additional mutations responded to Kalydeco in the laboratory test, researchers were thus able to extrapolate clinical benefit demonstrated in earlier clinical trials of other mutations. This resulted in the addition of gene mutations for which the drug is now indicated.

Kalydeco, available as tablets or oral granules taken two times a day with fat-containing food, helps the protein made by the CFTR gene function better and as a result, improves lung function and other aspects of cystic fibrosis, including weight gain. If the patient's genotype is unknown, an FDA-cleared cystic fibrosis mutation test should be used to detect the presence of a CFTR mutation followed by verification with bi-directional sequencing when recommended by the mutation test instructions for use.

Cystic fibrosis is a rare disease that affects about 30,000 people in the United States.Kalydeco is indicated for patients aged 2 and older who have one mutation in the CFTR gene that is responsive to drug treatment based on clinical and/or in vitro (laboratory) data. The expanded indication will affect another 3 percent of the cystic fibrosis population, impacting approximately 900 patients. Kalydeco serves as an example of how successful patient-focused drug development can provide greater understanding about a disease. For example, the Cystic Fibrosis Foundation maintains a 28,000-patient registry, including genetic data, which it makes available for research.

Common side effects of Kalydeco include headache; upper respiratory tract infection (common cold) including sore throat, nasal or sinus congestion, or runny nose; stomach (abdominal) pain; diarrhea; rash; nausea; and dizziness. Kalydeco is associated with risks including elevated transaminases (various enzymes produced by the liver) and pediatric cataracts. Co-administration with strong CYP3A inducers (e.g., rifampin, St. John's wort) substantially decreases exposure of Kalydeco, which may diminish effectiveness, and is therefore not recommended.

Kalydeco is manufactured for Boston-based Vertex Pharmaceuticals Inc.



Targeted News Service

Pharmacy News Index
  Drug Delivery Systems
  Drugstores
  FDA Final Approvals
  Front Page Healthcare News
  Generic Drugs
  Hospital Industry
  Internet Pharmacy
  IT in Healthcare
  Medicare & Medicaid
  Over-the-Counter Drugs
  Pharm Industry Trends and Policy
  Pharmaceutical Development
  Pharmaceutical Industry

LIVE ONLINE CE

Last Chance
May 25: Acne Vulgaris: Comprehensive Pharmaceutical Care
Last Chance
May 26: Dispensing Controlled Substances in Today’s Pharmacy
May 30: The American Geriatric Society Beers Criteria: Implications for Pharmacy Practice
May 31: Medication Safety & Drug Safety Alerts
Jun 01: Adult Immunizations: A Guide for Pharmacists, Techs & NPs
Click for entire Webinar Calendar

Special Announcement

Free Membership
Enjoy Drug Search, industry newsletters and more...

Nursing Jobs
Are you a nurse looking for a job?

Check out the Nursing Job Source.

Your number one choice for nursing jobs.



Websites » RxCareerCenter.comRxSchool.comClubStaffing.comNursingJobSource.comRN.com
Copyright © 2017 Pharmacy Choice - All rights reserved.
Terms and Conditions | Privacy Statement
888-682-4415