Upadacitinib is in development for the treatment of moderate to severe atopic dermatitis (AD). AD is a chronic inflammatory skin disease that affects both children and adults and is characterised by redness, itchiness, and scaling of the skin. Some people only have small patches of dry skin, but others may experience widespread red, inflamed skin all over the body. Patients with moderate to severe AD may experience sleep disturbances, anxiety, depression, and poor quality of life. Currently, the management of AD involves the removal or treatment of trigger factors that contribute to the development of the disease and topical and/or systemic treatment depending on the severity of the disease.
Upadacitinib acts by selectively blocking a protein called Janus-Associated Kinase 1 (JAK1 and JAK1/3). JAKs contribute to the processes within the cell to produce an immune or inflammatory response. There is an emerging body of evidence establishing that JAK dependent enzymes are major contributors to the progression of immune-mediated diseases such as AD and that blocking such enzymes can be beneficial. Upadacitinib is taken orally and if licensed, it will offer an additional treatment option for patients with moderate to severe AD.
BMS-986165 is in clinical development for moderate to severe plaque psoriasis in adults who are candidates for systemic therapy. Psoriasis is an inflammatory disease whereby the body’s immune system becomes over-active resulting in the life cycle of skin cells to drastically speed up. This causes a build-up of red, scaly, flaky and itchy patches of skin to appear that often involve the knees, elbows, scalp and lower back. Plaque psoriasis is thought to be caused by a combination of genetic susceptibility and triggers such as stress, smoking and hormonal changes. Treatment is determined by the area of skin affected and the severity of the plaque psoriasis and may include a combination of topical, phototherapy and systemic (oral or injected) therapies.