Kiniksa Pharmaceuticals International
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Kiniksa Pharmaceuticals International (KNSA) investor relations material

Kiniksa Pharmaceuticals International 44th Annual J.P. Morgan Healthcare Conference summary

Complete event summary combining all related documents: earnings call transcript, report, and slide presentation.
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44th Annual J.P. Morgan Healthcare Conference summary12 Jan, 2026

Key achievements and financial highlights

  • Reported 2025 unaudited net revenue of $677.5 million, with 62% year-over-year growth and 2026 guidance of $900–$920 million.

  • Cumulative net revenue for ARCALYST in recurrent pericarditis reached $1.5 billion since launch.

  • Year-end cash reserves of $414 million support ongoing investment and growth initiatives, with expectations to remain cash flow positive.

  • ARCALYST market penetration in multiple recurrence patients increased to 18% by end of 2025, up from 13% in 2024.

  • Over 4,150 prescribers, with 29% prescribing to two or more patients, and 325 new prescribers added in Q4 2025.

Commercial execution and market development

  • ARCALYST is now positioned as the second-line standard of care after NSAIDs and colchicine, supported by ACC Concise Clinical Guidance.

  • Innovative AI-driven field alerts and targeted outreach have expanded prescriber base and patient identification.

  • Growth in pericardial disease centers from 2 at launch to 18, with these centers outpacing other sites in ARCALYST prescriptions.

  • Real-world evidence from the RESONANCE registry shows ARCALYST adoption is reducing corticosteroid use.

  • Promotional and medical affairs teams are focused on disseminating new guidelines and data to drive further adoption.

Pipeline and clinical development

  • KPL-387 is in phase 2/3 dose-finding study for recurrent pericarditis, aiming for commercialization in 2028–2029.

  • KPL-387 offers monthly dosing via autoinjector, with strong preference from both patients and healthcare professionals.

  • Phase 2/3 study includes four arms, targeting optimal dose selection for phase 3; topline data expected in second half of 2026.

  • KPL-1161, an Fc-modified IL-1 alpha and beta inhibitor, is planned to enter the clinic by end of 2026.

  • Portfolio includes ARCALYST, KPL-387, KPL-1161, and abiprubart, with a focus on cardiovascular and specialty indications.

How to accelerate ARCALYST adoption in first recurrence
How KPL-387 expands recurrent pericarditis market
How continuous ARCALYST therapy redefines patient care
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Q4 202524 Feb, 2026
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Frequently asked questions

Kiniksa Pharmaceuticals International, plc is a commercial-stage biopharmaceutical company focused on discovering, acquiring, developing, and commercializing therapeutic medicines. The company's work targets debilitating diseases with significant unmet medical needs, particularly within cardiovascular and autoimmune disorders. Kiniksa's portfolio includes products and candidates based on strong biological rationale or validated mechanisms, offering potential differentiation in treatment approaches. The company is known for its flagship product, ARCALYST, which is used to treat certain inflammatory cardiovascular conditions. The company is headquarted in London, UK, and its shares are listed on the NASDAQ.

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