RHAPSODY is a Phase 3 clinical trial in recurrent pericarditis utilizing rilonacept (NCT03737110).
Study design for Rhapsody includes the following 5 periods: (1) Screening; (2) Single-blind run-in: participants receive a loading dose of rilonacept 320 mg injected SC followed by 160 mg SC weekly while background pericarditis medications are tapered and discontinued; (3) Double-blind, placebo-controlled 24-week randomized-withdrawal (RW): clinical responders to rilonacept are randomized 1:1 and receive 160 mg SC weekly rilonacept or placebo for at least 24 weeks; (4) Long-term extension treatment: after trial completion all subjects completing the RW period have the option to receive up to 24 weeks of open-label rilonacept 160 mg SC weekly; (5) Long-term extension follow-up: all subjects in the long-term extension period will be followed for 24 weeks for safety and pericarditis recurrences.
Rilonacept in recurrent pericarditis is an investigational drug.