Review of Safety Using Rilonacept in Preventing Gout Exacerbations (RE-SURGE)

Any untoward medical occurrence in a participant who received investigational medicinal product (IMP) was considered an AE without regard to possibility of causal relationship with this treatment. Treatment-emergent adverse events (TEAEs) were defined as AEs that developed or worsened or became serious during on-treatment period (time from the administration of first dose of study drug up to 35 days after the last dose of study drug). A serious adverse event (SAE) was defined as any untoward medical occurrence that resulted in any of the following outcomes: death, life-threatening, required initial or prolonged in-patient hospitalization, persistent or significant disability/incapacity, congenital anomaly/birth defect, or considered as medically important event. Any TEAE included participants with both serious and non-serious AEs.

Time frame: Baseline up to Week 20

Population: Safety analysis set that included all participants who received any study drug and safety analyses were based on the treatment received.

A gout flare was defined as participant reported acute articular pain typical of a gout attack that required treatment with an anti-inflammatory therapeutic: had at least 3 of the following 4 signs or symptoms: joint swelling, tenderness, redness, and pain and with at least 1 of the following: rapid onset of pain, decreased range of motion, joint warmth or other symptoms similar to a prior gout flare. Number of gout flares per participant was reported for this outcome measure. Flare days were counted up to Week 16, regardless of whether or not the flares occurred during the treatment period.

Time frame: Day 1 to Day 112 (Week 16)

Population: FAS that included all randomized participants who received any study medication, and was based on the treatment allocated by the IVRS at randomization (as randomized). Here, number of participants analyzed=participants with available data for this endpoint.

A gout flare was defined as participant reported acute articular pain typical of a gout attack that required treatment with an anti-inflammatory therapeutic: had at least 3 of the following 4 signs or symptoms: joint swelling, tenderness, redness, and pain and with at least 1 of the following: rapid onset of pain, decreased range of motion, joint warmth or other symptoms similar to a prior gout flare. Number of gout flares per participant was reported for this outcome measure. For drop-outs, only flares occurred before Day 112 were counted, regardless whether the flares occurred during the treatment period or not.

Time frame: Day 1 to Day 112 (Week 16)

Population: Full analysis set (FAS) that included all randomized participants who received any study medication, and was based on the treatment allocated by the Interactive voice response system (IVRS) at randomization (as randomized). Here, number of participants analyzed=participants with available data for this endpoint.

A gout flare was defined as participant reported acute articular pain typical of a gout attack that required treatment with an anti-inflammatory therapeutic: had at least 3 of the following 4 signs or symptoms: joint swelling, tenderness, redness, and pain and with at least 1 of the following: rapid onset of pain, decreased range of motion, joint warmth or other symptoms similar to a prior gout flare. Percentage of participants with at least one gout flare was reported for this outcome measure. For drop-outs, only flares occurred before Day 112 were counted, regardless whether the flares occurred during the treatment period or not.

Time frame: Day 1 to Day 112 (Week 16)

Population: FAS that included all randomized participants who received any study medication, and was based on the treatment allocated by the IVRS at randomization (as randomized).

A gout flare was defined as participant reported acute articular pain typical of a gout attack that required treatment with an anti-inflammatory therapeutic: had at least 3 of the following 4 signs or symptoms: joint swelling, tenderness, redness, and pain and with at least 1 of the following: rapid onset of pain, decreased range of motion, joint warmth or other symptoms similar to a prior gout flare. Percentage of participants with at least two gout flare was reported for this outcome measure. For drop-outs, only flares occurred before Day 112 were counted, regardless whether the flares occurred during the treatment period or not.

Time frame: Day 1 to Day 112 (Week 16)

Population: FAS that included all randomized participants who received any study medication, and was based on the treatment allocated by the IVRS at randomization (as randomized).