LOS ANGELES--(BUSINESS WIRE)--$KAPA--Kairos Pharma, Ltd. (NYSE American: KAPA), a clinical-stage biopharmaceutical company addressing drug resistance in cancer, today announced positive interim efficacy data from its ongoing Phase 2 clinical trial evaluating ENV-105 (carotuximab) in combination with apalutamide in patients with metastatic castration-resistant prostate cancer (mCRPC). The interim analysis demonstrated a statistically significant difference in progression-free survival (PFS) between all patients in the trial treated with ENV-105 plus apalutamide and those treated with apalutamide alone. Median PFS was 17.7 months with the combination compared with 2 months with apalutamide alone (P=0.0008).
With the interim efficacy signal, Kairos Pharma has modified the Phase 2 protocol to enroll patients earlier in the course of disease progression. Rather than treating patients after one or two anti-androgen agents, the modified protocol will enroll patients who experience a PSA increase following upfront treatment with an androgen signaling inhibitor. Patients will be randomized to enzalutamide alone or enzalutamide in combination with ENV-105. The protocol modification is intended to expand the eligible patient population and facilitate enrollment, with Kairos Pharma targeting completion of the Phase 2 trial in or before the fourth quarter of 2027.
"These interim results provide an important clinical signal for ENV-105 and support our strategy of targeting the mechanisms underlying drug resistance," said Kairos Pharma Chief Executive Officer Dr. John Yu. "The protocol modification will allow more patients to be eligible for the potential benefits of ENV-105 treatment while evaluating the therapy earlier in disease progression."
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