MADRID – An observational study that includes adults and children with cryopyrin-associated periodic syndromes and related diseases has provided real-world evidence that clinical improvement accrues on canakinumab (Ilaris) years after treatment was initiated, according to Norbert Blank, MD, of the division of rheumatology at the University of Heidelberg (Germany).
Summarizing data he presented at the European Congress of Rheumatology, Dr. Blank explained in an interview that the observational study has accrued more than 50 patients so far, with the goal of reaching 300 patients with cryopyrin-associated periodic syndromes and related rare diseases that have responded to anti–interleukin-1 therapy, such as Muckle-Wells syndrome, familial cold autoinflammatory syndrome, and familial Mediterranean fever.
Most of the patients participating in the observational study, called RELIANCE, were already on canakinumab at the time of enrollment, often for several years. Yet in follow-up so far – which exceeds 1 year for some of the participants – improvement from the time of entry has been seen for some outcomes, such as activity level, according to Dr. Blank.
Canakinumab has been well tolerated with no new or unexpected adverse events emerging in the follow-up so far. Although these data remain limited, Dr. Blank considers them reassuring.
With detailed characterization of these rare diseases at baseline, observational studies like RELIANCE provide valuable real-world data about disease presentation, according to Dr. Blank. He believes that further follow-up will provide a rich source of information about disease course in response to anti-IL-1 therapy, which is being individualized according to response.