UB Physicians Instrumental in Developing Cystic Fibrosis Drug
Published
February 2, 2012
UB physicians played a key role in developing a breakthrough
drug just approved for treatment of a less common mutation of
cystic fibrosis.
The Cystic Fibrosis Therapeutics Development Center was the
first site in the world to recruit patients for a Phase 3 clinical
trial of the drug, called Kalydeco, to treat patients who have the
G551D mutation.
The FDA approved Kalydeco Jan. 31.
“We enrolled the first patient in the study, which began
in 2009, so there is a patient in Western New York who has been on
this drug longer than anyone in the world,” says Drucy
S. Borowitz, MD, clinical professor of pediatrics and
director of the center, which is a partnership between UB and Women and Children’s
Hospital of Buffalo.
Kalydeco Repairs Mutated Protein
Cystic fibrosis is a rare genetic disease that affects
approximately 30,000 Americans. On average, patients with CF live
only into their mid-20s.
Of individuals with CF, about 4 percent are believed to have the
G551D mutation, in which the cystic fibrosis transmembrane
regulator (CFTR) proteins do not work properly.
Kalydeco, the first drug of its class, is a small molecule that
treats the underlying cause of the disease in people with the
mutation by “repairing” the aberrant proteins so they
function normally. Vertex
Pharmaceuticals developed the drug.
“What’s exciting about this drug is that it shows
the promise of the human genome project. It proves we can do
it,” says Borowitz.
Studying Second Drug for More Common CF Mutation
Kalydeco provides the critical proof of concept for a second
drug in clinical trials that promises to treat the majority of
patients with CF.
“At the CF center, we are actively involved in the
development of this treatment, which combines Kalydeco with another
drug to make the most common CF mutation function more
normally,” Borowitz says.
That treatment, she adds, is currently in a Phase 2 clinical
trial and is several years away from FDA approval.
“We believe that this treatment, if successful, will
change the course of CF from a disease that people die from to a
condition that people live with.”
The same drug-development concept used for these two drugs also
may benefit people with diseases other than cystic fibrosis,
Borowitz says.
WNY Patients' Participation in Trial Key to Success
The success of Kalydeco demonstrates the power of clinical
translational research, Borowitz notes. A key factor, she says, is
the willingness of Western New Yorkers to participate in clinical
trials.
“Knowledge of basic science and the integration of our
patients into clinical research is really what translational
research should be. The path we are taking here in Buffalo for drug
development is part of an incredible story of American innovation,
compassion and international cooperation to change the course of
disease,” she says.