Psoriasis is a systemic chronic skin disorder characterized by excessive keratinocyte proliferation that results into thickened scaly plaques, itching and inflammatory changes in the epidermis and dermis. It is transmitted genetically but can be provoked by environmental factors.
It is found in approximately 2% of the population that primarily affects the skin and joints.
It is associated with other inflammatory disorders and autoimmune diseases (eg psoriatic arthritis, inflammatory bowel disease, coronary artery disease).
Generally, it begins as red scaling papules that coalesce to form round-to-oval plaques. The rashes are often pruritic and may be painful.
Individuals with obesity and high abdominal fat mass appear to have a twofold increased risk of developing psoriasis, as shown in a study. Long-term weight gain of ≥10 kg is also associated with a substantially increased risk.
Researchers have recently developed and validated a prediction rule to identify patients with moderate-to-severe psoriasis who are not likely to respond adequately to methotrexate, reports a study. The rule indicates that 4 weeks of methotrexate may be enough to predict long-term response with limited safety risk.
Treatment with biologic agents appears to increase the rate of skin and soft tissue infections among patients with psoriasis, reports a recent study. In addition, a signal exists suggesting a heightened risk for meningitis.
Ixekizumab, a high-affinity monoclonal antibody that selectively targets interleukin 17A, is safe and effective in moderate-to-severe plaque psoriasis, providing a persistent and long-term clinical response through 108 weeks of treatment, reports a recent study.
Duration of psoriasis poses harmful effects on vascular inflammation and major adverse cardiovascular (CV) event (MACE), a recent study has found. This suggests that cumulative duration of exposure to low-grade chronic inflammation may fast-track vascular disease development and MACEs.
The likelihood of suicidal ideation, suicide attempts and completed suicides is substantially greater in patients with psoriasis, according to a recent study. Among these patients, those who are younger and whose psoriasis is more severe are at risk of suicidality.
New drug applications approved by US FDA as of 1 - 15 July 2017 which includes New Molecular Entities (NMEs) and new biologics. It does not include Tentative Approvals. Supplemental approvals may have occurred since the original approval date.