Dr. Jack Cush reviews recent news, regulatory and guideline updates from the past week on RheumNow.com.  Studies on methotrexate use, COVID vaccination, Supplements and vitamins, and arthrocentesis despite anticoagulation are discussed.

The GRAPPA (Group for Research and Assessment of Psoriasis and Psoriatic Arthritis) treatment recommendations have been updated and the 2021 evidence-based guidance is rich in treatment recommendations based on the key disease "domains" - peripheral arthritis, axial disease, enthesitis, dactylitis, skin and nail psoriasis; with new PsA related domains uveitis and inflammatory bowel disease.

A cohort study of rheumatoid arthritis (RA) patients evaluated immunogenicity of COVID vaccination with and without holding methotrexate (MTX) for and 2-weeks and showed better immunogenicity, but more RA flares with the second MTX withdrawal. 

A pooled analyses of data from eight, phase 2 and 3 randomized clinical trials shows bimekizumab, a dual IL-17A/F inhibitor, to be effective in plaque psoriasis and was well tolerated aside from an increased incidence of mild to moderate oral candidiasis.