Press release
CytomX Therapeutics Reports First Quarter 2024 Financial Results and Provides Business Update
- Company announces positive initial Phase 1a dose escalation data for monotherapy CX-904 (EGFRxCD3 T-cell engager) in solid tumors - - First dose cohort

About this update from Cytomx Therapeutics, Inc.
[{"type":"text","content":"- Company announces positive initial Phase 1a dose escalation data for monotherapy CX-904 (EGFRxCD3 T-cell engager) in solid tumors - - First dose cohort cleared in Phase 1 clinical study of CX-2051, an EpCAM Targeting PROBODY® ADC, in solid tumors. Initial data anticipated in the first half of 2025 - - Phase 1 study initiation activities continue for CX-801, an interferon alpha-2b PROBODY® cytokine, including the execution of a clinical collaboration agreement with Merck to supply KEYTRUDA® (pembrolizumab) for evaluation in combination with CX-801. Initial data anticipated in 2025 - - Achieved $10 million of milestones under T-cell engaging bispecific collaboration with Astellas for preclinical progress on the first two programs in the collaboration - - Dr. Zhen Su appointed to Board of Directors - - Management to hold conference call today at 5 p.m. EDT / 2 p.m. PDT - SOUTH SAN FRANCISCO, Calif., May 08, 2024 (GLOBE NEWSWIRE) -- CytomX Therapeutics, Inc. (Nasdaq: CTMX), a leader in the field of masked, conditionally activated biologics, today reported first quarter 2024 financial results and provided a business update. “CytomX’s multi-modality PROBODY® therapeutic pipeline encompasses some of the most exciting areas of current oncology R&D, including T-cell engagers, ADCs, and cytokines. CytomX’s leadership and continuous innovation in the field of masked, conditionally activated biologics ideally positions us to develop novel, potent therapies for cancer patients in key areas of unmet need,” said Sean McCarthy, D.Phil., chief executive officer and chairman of CytomX. McCarthy added, “CytomX entered 2024 executing to our plan and with substantial momentum, looking towards key data readouts from our multi-modality PROBODY® therapeutic pipeline over the next 12 to 24 months. Our exciting announcement today of positive initial Phase 1a clinical data for CX-904 marks the beginning of this data-rich period and we look forward to making continued progress with our broad program of masked, PROBODY® T-cell engagers and to also demonstrating clinical proof of concept for CX-2051 and CX-801, for which we anticipate initial Phase 1 data in 2025.” First Quarter Business Highlights and Recent Developments Pipeline CX-904, PROBODY® T-cell-engager (TCE) targeted to EGFRxCD3, demonstrates a favorable safety profile and encouraging anti-cancer...