Core Insights - Artiva Biotherapeutics announced promising long-term Phase 1/2 data for AlloNK® in combination with rituximab for patients with relapsed/refractory B-cell non-Hodgkin lymphoma, showing a 64% complete response rate and a median duration of response of at least 19.4 months [1][2][3] Group 1: Clinical Data - AlloNK + rituximab demonstrated a 64% complete response rate (9 out of 14 patients) in heavily pretreated patients who were naïve to prior CAR-T cell therapy [1][3] - The median duration of response is at least 19.4 months, indicating durability comparable to approved auto-CAR-T therapies [1][3] - The safety profile of AlloNK + rituximab was well-tolerated among 45 patients, with no reports of immune effector cell associated neurotoxicity syndrome (ICANS) or graft-versus-host disease [7] Group 2: Comparison with CAR-T Therapies - The complete response rate of AlloNK + rituximab is comparable to outcomes from approved auto-CAR-T therapies, which reported 58% for Yescarta, 53% for Breyanzi, and 40% for Kymriah [3] - The median duration of response for AlloNK + rituximab is competitive with auto-CAR-T therapies, which showed 11.1 months for Yescarta, 23.1 months for Breyanzi, and not reached for Kymriah at 40.3 months follow-up [3] Group 3: Mechanism and Future Implications - AlloNK has shown the potential to enhance the activity of monoclonal antibodies, driving deep and durable responses in both aggressive B-NHL and potentially in autoimmune diseases [2][7] - The tolerability profile of AlloNK supports its use in outpatient community settings, making it a viable option for patients with refractory autoimmune diseases [7]