Kairos Pharma, Ltd. (NYSE American: KAPA), a clinical-stage biopharmaceutical company focused on overcoming cancer drug resistance, today announced a strategic collaboration with Bayer to evaluate Kairos Pharma’s lead antibody ENV-105 (carotuximab), a first-in-class CD105/BMP signaling inhibitor, in combination with Bayer’s XOFIGO (radium-223 dichloride) in metastatic castration-resistant prostate cancer (mCRPC) involving bone.