The multimillion dollar question for inflammatory arthritis prescriptions is: which drug should I use next?

Drs. Jack Cush & Arthur Kavanaugh, two of rheumatology’s most trusted voices, provide a breakdown of the latest breakthroughs and hottest topics in rheumatology from the 2025 ACR Convergence meeting in Chicago.

Here's the last installment of our "ACR Best" abstracts as chosen by the RheumNow faculty.  Most of these were from the final, day 4, but a few were noteworthy holdovers from day 3. Enjoy!

Promising novel mechanisms of action always create excitement, but the immune checkpoint PD-1 has cemented itself in the news far more than most. This fame is primarily from therapeutic inhibition in cancer and rheumatological inflammatory sequelae that emerge, but invoking the inverse and using PD-1 agonism to treat classical autoimmunity has subsequently been making its own mark. Given the evident plausibility, how do we feel about invoking