Hi ... I am in a study taking ethambutol + Azithromycin and either arikayce or placebo (no rifampin). I was also concerned about starting treatment and whether the docs would want to stop the humira so my immune system would not be suppressed. They said NO absolutely stay on humira since it has kept crohns in remission, and all the more reason to treat, so the Mac would not progress or spread (disseminate, which is rare but serious).
My Crohn's Dr works with my expert BE Dr, they share patients who have both.
Do you plan to aggressively follow up on the RA factor? That can indicate other autoimmunity, not just RA.