- History of chronic autoimmune disease (e.g. systemic lupus erythematosus or Wegener s granulomatosis, Addison s disease, multiple sclerosis, Graves disease, Hashimoto s thyroiditis, hypophysitis, etc.) with symptomatic disease within the 3 years before enrollment. Note: Active vitiligo or a history of vitiligo will not be a basis for exclusion. In addition, a past history of certain autoimmunity e.g. rheumatoid arthritis or thyroiditis may be allowed per PI discretion provided it has been quiescent for a minimum of three years. The following are exceptions to this criterion: