Companies working in the psoriasis area: Leo Pharma

Treatment: 

TNF-alpha inhibitors:

Humira (adalimumab) demonstrated that in patients with moderate to severe chronic plaque psoriasis, adalimuamb acheived statically significant results after 12 weeks.

Vitamin D and corticosteroid: has been used for the treatment of psoriasis. Leo Pharma (6,753,013) discloses a composition comprising at least one vitamin D or vitamin D analogus and at least one corticosteroid for topical application which is storage stable sold under the brand name Taclonex® which is FDA approved

PDE4 Inhibitors:

Otezla® is a phosphodiesterase-4 (“PDE4”) inhibitor marked by Amgen which is used for treating psoriasis and related conditions.