Case reports on 13 cancer patients suggest that a small number of cancer patients taking the immunotherapy drugs ipilimumab and nivolumab may be at some higher-than-normal risk of developing autoimmune joint and tissue diseases, including inflammatory arthritis, according to a preliminary study by Johns Hopkins Medicine researchers.
"I don't think anyone is particularly surprised that rheumatologic disorders might be a complication of drugs that boost the immune system," says study author Laura C. Cappelli, M.D., a rheumatologist at the Johns Hopkins University School of Medicine. But the new study, however small in sample size, she says, is believed to be the largest published case series of a link between the drugs and the diseases.
