N Engl J Med 2020
A case description of the successful use of tofacitinib in a patient with gastric cancer receiving pembrolizumab whose treatment was complicated by recurrent colitis that was refractory to glucocorticoids, infliximab, and vedolizumab.

Esfahani K, Hudson M, Batist G. Tofacitinib for Refractory Immune-Related Colitis from PD-1 Therapy. N Engl J Med. 2020 Jun 11;382(24):2374-2375.