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Thursday, February 16, 2023

Ambrx: Positive Data in Advanced Prostate Cancer

 

  • First clinical data from ongoing Phase 1 dose escalation trial (APEX-01) shows a prostate-specific antigen (PSA) decrease of > 50% reduction in PSA levels from baseline in 3 of 3 patients with metastatic prostate cancer receiving ARX517 at 2.0 mg/kg (Cohort 6)

  • 2 of 3 patients in Cohort 6 experienced a greater than 90% reduction in PSA levels

  • No drug-related severe adverse events (SAEs) or dose limiting toxicities (DLTs) have been observed

  • These data provide early evidence of proof of concept for single-agent ARX517 as an ADC treatment for advanced prostate cancer

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