How do you approach further treatment of patients who develop grade 2-3 immune colitis from nivolumab/ipilimumab prior to completion of the 4 ipilimumab doses?

If the colitis completely resolves, I would consider a colonoscopy to be sure that subclinical microscopic lymphocytic colitis has completely resolved. If not, I would consider 3 dose of infliximab to reduce recurrence of colitis. Then once off steroids, I would restart single agent anti-PD1.