LAVA Therapeutics N.V. announced its decision to rationalize its pipeline and prioritize its lead solid tumor program. The Company will continue to advance LAVA-1207, its Gammabody program designed to target the prostate-specific membrane antigen (PSMA) as well as earlier stage programs. The ongoing clinical trial of LAVA-051 targeting CD1d expressing hematological tumors, including multiple myeloma (MM), chronic lymphocytic leukemia (CLL), and acute myeloid leukemia (AML) will be discontinued (NCT04887259). LAVA-051 was being evaluated in an open-label, multi-center Phase 1/2a clinical trial in patients with relapsed or refractory CLL and MM to evaluate the safety, tolerability, pharmacokinetics, pharmacodynamics, immunogenicity, and preliminary anti-tumor activity of LAVA-051.

The decision to discontinue LAVA-051's clinical trial follows a recent review of the competitive landscape that has continued to evolve. The decision is not due to safety concerns. LAVA-1207 is a Gammabody designed to target the prostate-specific membrane antigen (PSMA) to trigger the potent and preferential killing of PSMA-positive tumor cells in patients with metastatic castration-resistant prostate cancer (mCRPC).

The ongoing Phase 1/2a study of LAVA-1207 in patients with therapy refractory mCRPC has thus far demonstrated a favorable safety profile as well as preliminary signs of anti-tumor activity with disease stabilization and PSA reduction during dose escalation in this heavily pretreated patient population. The Company expects that the discontinuation of this LAVA-051 trial and its focus on the LAVA-1207 program will result in cost savings that will extend its cash runway further into 2026.