Abatacept (made by Bristol-Myers Squibb) is a safe intervention known to effectively treat rheumatoid arthritis, another "autoimmune" disease, by fighting inflammation. There are some genetic and chemical similarities between those with active rheumatoid arthritis and Alopecia Areata, suggesting that treatment with the same drug is likely to be effective. In mice specially designed for testing drugs for the treatment of human alopecia, this medication worked to prevent the disease Alopecia Areata from starting.