Breast CA (BC) & TNFi - study of 2 cohorts (Optum commercial * SEER/Medicare) found that 17% & 16% of BC pts received TNFi. 1 yr overall survival was no different +/- TNFi (HR= 0.77 & 0.84); but BC survival better on TNFi (HR 0.28; 0.08–0.98) vs csDMARDs. https://t.co/cGqT80rGTR https://t.co/n7i5VNFkVT