CAR T cell therapy took the centre stage in 2022 where data pertaining to a successful case series of 5 patients with refractory SLE were published by Prof Schett’s group. Since then, this area of therapeutic has expanded exponentially. Our growing enthusiasm was slightly dampened though when the FDA required all six approved CAR T-cell therapies in oncology to include a black box warning regarding the risk of second primary malignancies in

Following the landmark case series by the Erlangen group, multiple cellular therapies have entered the race—each with unique targets, constructs, and mechanisms. Yet, a fundamental question remains: How deep is the B-cell depletion? In clinical practice, peripheral blood counts often serve as our surrogate for depletion. But these may only tell part of the story.

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!