Artiva Announces Positive Initial Clinical Data with AlloNK® Across Multiple Autoimmune Diseases and FDA Alignment to Initiate Phase 3 Registrational Trial in Rheumatoid Arthritis in 2026

Initial clinical data demonstrated 71% ACR50 response in refractory rheumatoid arthritis (RA) patients with at least six months of follow-up in the company-sponsored Phase 2a basket trial, with no patients relapsing or requiring new immunomodulatory agents AlloNK treatment regimen demonstrated tolerability results supportive of outpatient administration in community rheumatology settings, with no CRS, ICANS, or treatment discontinuations observed in autoimmune patients treated with AlloNK More than 70 autoimmune patients treated with AlloNK across more than 40 active clinical sites, mostly in community settings, providing a strong foundation for planned registrational trial initiation in H2 2026 U.