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MoonLake Announces Positive Topline Results from the Phase 3 IZAR-1 Trial of Sonelokimab in Psoriatic Arthritis Demonstrating Significant Improvements Across all Clinical Endpoints, and Reports Second Quarter 2026 Financial Results

$MLTXPress releaseAug 10, 2026, 7:00 AM ETRead the release

MoonLake Immunotherapeutics reported positive topline results from the Phase 3 IZAR-1 trial of sonelokimab in psoriatic arthritis, meeting all primary and key secondary endpoints at Week 16. The trial demonstrated a 42.1% ACR50 response rate with strong efficacy across multiple domains, including 66.5% ACR20 and 61% PASI90 in skin involvement.

Key figures

Drug Name
Sonelokimab
Phase Of Trial
Phase 3
Mda
41.2%
Acr20
66.5%
Acr50
42.1%
Pasi90
61%
Net loss
$61.8 million
Cash runway
mid-2028
Rd expenses
$50.2 million
Cash position
$537.0 million
Haq di change
-0.427
Sf 36 pcs score
6.54

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