The Food and Drug Administration has approved crisaborole topical ointment, 2%, to treat mild to moderate atopic dermatitis in patients 2 years of age and older. The boron-based phosphodiesterase 4 inhibitor, which will be marketed as Eucrisa, was developed by Anacor Pharmaceuticals, which Pfizer acquired in May of 2016.
“Today’s approval provides another treatment option for patients dealing with mild to moderate atopic dermatitis,” Amy Egan, deputy director of the Office of Drug Evaluation III in the FDA’s Center for Drug Evaluation and Research, said in a prepared statement. Safety and efficacy of the drug were established in two placebo-controlled trials with a total of 1,522 participants aged 2-79 years with mild to moderate atopic dermatitis.
According to the FDA statement, serious side effects of Eucrisa include hypersensitivity reactions. The product should not be used in patients who have had a hypersensitivity reaction to Eucrisa’s active ingredient, crisaborole. The most common side effect of Eucrisa is application site pain, including burning or stinging.At the annual meeting of the Pacific Dermatologic Association in August 2016, Dr. Kelly Cordoro, a pediatric dermatologist at the University of California, San Francisco, described crisaborole as an anti-inflammatory agent that modifies inflammation by inhibiting the degradation of cAMP by PDE4, resulting in downstream modification of nuclear factor-kB and T-cell signaling pathways. “Crisaborole has shown promising results from four clinical studies in patients 2 years of age and older, with notable improvements in all atopic dermatitis parameters,” she said.
The results of the two phase III studies were recently published in the Journal of the American Academy of Dermatology (2016 Sept;75[3]:494-503).