Researchers from Protagonist Therapeutics Inc. reported the preclinical characterization of PN-881, an oral macrocyclic peptide that inhibits the dimeric forms of IL-17 – AA, AF, and FF.

CC chemokine receptor 6 (CCR6) is a G-protein coupled receptor involved in guiding immune cells through the body and the hallmark receptor for T helper 17 (Th17) cells, and is also expressed in other immune cell populations, such as B cells and innate lymphoid cells, among others.

At this week’s American Chemical Society Spring meeting, Galderma SA reported the discovery of novel, oral and selective macrocyclic inhibitors of protein kinase C θ (PKCθ) for the potential treatment of atopic dermatitis (AD) and psoriasis.

Researchers from Anew Therapeutics Pte Ltd. recently detailed the discovery of novel oral IL-17A small-molecule inhibitors as candidates for the treatment of psoriasis.

Patients with psoriatic arthritis exhibit high levels of both IL-17A and IL-17F cytokines in the synovium. Bimekizumab, a biologic that targets both IL-17A and IL-17F, was recently approved for the treatment of plaque psoriasis and psoriatic arthritis.

Psoriasis is a chronic, recurrent and inflammatory skin disorder associated with immune system dysregulation. The abnormal immune response led to accelerated skin cell proliferation, resulting in thick plaques and chronic inflammation. The current gold-standard treatment is injectable immunosuppression.

In a deal that Cantor Fitzgerald analyst Eric Schmidt characterized as “capital recycling at its best,” Alumis Inc. and Acelyrin Inc. are merging in an all-stock transaction. The combined pipelines include Alumis’ most advanced prospect, ESK-001, an oral, next-generation, allosteric inhibitor of tyrosine kinase 2 (TYK2). ESK-001 is undergoing the phase III Onward study for moderate to severe plaque psoriasis as well as the phase II Lumus bid in systemic lupus erythematosus.