The oral Janus kinase 1 inhibitor abrocitinib has been approved in Europe for the treatment of moderate to severe atopic dermatitis (AD) in adults, who are candidates for systemic therapy, the manufacturer announced.

Approval by the European Commission was based on the results of studies that include four phase 3 clinical trials (JADE MONO-1, JADE-MONO-2, JADE COMPARE, JADE REGIMEN) and an ongoing open-label extension study (JADE EXTEND) in over 2,800 patients, according to the Pfizer press release announcing the approval. The approved doses are 100 and 200 mg a day; a 50-mg dose was approved for patients with moderate and severe renal impairment and "certain patients receiving treatment with inhibitors of cytochrome P450 (CYP) 2C19," the release said.

The approval follows a positive opinion by the Committee for Medicinal Products for Human Use of the European Medicines Agency supporting marketing authorization for treating AD, issued in October. It will be marketed as Cibinqo.

Abrocitinib is under review at the Food and Drug Administration. It was approved earlier in 2021 for treating AD in the United Kingdom, Japan, and Korea.
Abrocitinib Approved for Atopic Dermatitis in Europe - Medscape - Dec 13, 2021.