• TRADE NAME: Arcalyst (Regeneron)
  • INDICATIONS: Cryopyrin-associated periodic syndromes (CAPS) including familial cold autoinflammatory syndrome (FCAS), Muckle-Wells syndrome (MWS)
  • CLASS: Fusion protein, Interleukin-1 inhibitor
  • HALF-LIFE: N/A
  • CLINICALLY IMPORTANT, POTENTIALLY HAZARDOUS INTERACTIONS WITH:
    anti-TNF agents, Lenalidomide, live vaccines, Natalizumab

Cryopyrin-associated periodic syndromes (CAPS) are characterized by life-long, recurrent symptoms of rash, fever/chills, joint pain, eye redness/pain, and fatigue. Intermittent, disruptive exacerbations or flares can be triggered at any time by exposure to cooling temperatures, stress, exercise, or other unknown stimuli.

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Page last updated 07/31/2023

Symbol key

Incidence

<1% 1‑5% 5‑10% 10‑15% 15‑20% 20‑30% >30%

Seriousness

Hospitalization possible
Life threatening
Fatal

Warnings in other populations

BreastfeedingBreast feeding

GeriatricGeriatric

PediatricPediatric