Amgen will buy Celgene’s psoriasis drug Otezla for $13.4 billion in cash, clearing the way for Bristol-Myers Squibb to go ahead with the company’s $74 billion deal for Celgene by the end of 2019.

Humira’s dominance continues as the world’s top-selling prescription product as the biologic therapy is the first drug to exceed $20 billion in annual global sales.

LEO Pharma Inc announced the U.S. Food and Drug Administration expanded the approved indication for Enstilar (calcipotriene and betamethasone dipropionate) Foam, 0.005%/0.064%, for the topical treatment of plaque psoriasis to include patients age 12 and older. Additionally, the FDA approved Taclonex (calcipotriene and betamethasone dipropionate) Topical Suspension in the topical treatment of scalp and body plaque psoriasis in patients 12 years and older.

Bristol-Myers Squibb Co. offered to divest Celgene Corp.’s psoriasis treatment Otezla to allay concerns raised by the U.S. competition regulator, and pushed back the closing of their $74 billion deal.

The U.S. FDA approved AbbVie Inc.’s Skyrizi as a treatment for plaque psoriasis at a time when the company’s blockbuster psoriasis medicine Humira faces patent pressures.

Celgene Corporation announced results from the phase 3 STYLE study, which showed that Otezla (apremilast) 30 mg twice daily achieved a highly statistically significant improvement in the primary endpoint of the Scalp Physician’s Global Assessment response at week 16 compared with placebo.

Eli Lilly and Company announced today the initiation of the IXORA-R head-to-head clinical trial, designed to evaluate superiority between Taltz (ixekizumab) and Tremfya (guselkumab) in adult patients with moderate-to-severe plaque psoriasis.

Just like 2016 and the year before, specialty drugs dominate the 2017 list of top performers in the most recent first year after launch class.

Encouraging results were reported from UNVEIL, the first trial of patients with moderate plaque psoriasis who were naïve to systemic and biologic therapy.

AbbVie’s biologic therapy Humira for autoimmune diseases was the worldwide prescription-drug sales leader in 2015 for the fourth consecutive calendar term.