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BioAtla Presents Data from Ongoing Dose Escalation of BA3182, Dual-Conditionally Binding EpCAM x CD3 Bispecific T-cell Engager, in Patients with Treatment Refractory Metastatic Adenocarcinoma at the 2025 European Society for Medical Oncology (ESMO) Ga...
BioAtla Presents Data from Ongoing Dose Escalation of BA3182, Dual-Conditionally Binding EpCAM x CD3 Bispecific T-cell Engager, in Patients with Treatment
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[{"type":"text","content":"BioAtla Presents Data from Ongoing Dose Escalation of BA3182, Dual-Conditionally Binding EpCAM x CD3 Bispecific T-cell Engager, in Patients with Treatment Refractory Metastatic Adenocarcinoma at the 2025 European Society for Medical Oncology (ESMO) Gastrointestinal Cancers Congress \n Adverse events were generally low-grade, transient, and readily manageable Achieved preliminary evidence of prolonged tumor control and tumor reductions in heavily pretreated adenocarcinoma patients Dose escalation now continuing at 1.2 mg weekly by subcutaneous flat dosing SAN DIEGO, July 03, 2025 (GLOBE NEWSWIRE) -- BioAtla, Inc. (Nasdaq: BCAB) (the “Company” or “BioAtla”), a global clinical-stage biotechnology company focused on the development of Conditionally Active Biologic (CAB) antibody therapeutics for the treatment of solid tumors, today presented first-in-human data in a poster titled “Preliminary Results from a First-in-Human Phase 1 Study of a Dual-Conditionally Binding CAB-EpCAM x CAB-CD3 Bispecific T-cell Engager, BA3182, in Patients with Treatment Refractory Metastatic Adenocarcinoma” at the European Society for Medical Oncology (ESMO) Gastrointestinal Cancers Congress being held in Barcelona, Spain from July 2–5, 2025. In the ongoing Phase 1 dose-escalation clinical trial, as of June 20, 2025, 39 patients with heavily pretreated metastatic adenocarcinoma were dosed in cohorts ranging from 0.0026 mg to 0.6 mg BA3182 QW, with either 0, 1, or 2 priming dose(s) delivered four to seven days prior to treatment dosing. The primary objectives of this trial are to characterize safety and tolerability with escalating doses for determining efficacious dose(s) for guiding the selection of the recommended Phase 2 dose (RP2D). Secondary objectives include evaluation of preliminary antitumor activity in different cancer types, pharmacokinetics, and any potential immunogenicity. Robust expression of EpCAM among adenocarcinomas of the colon, stomach, pancreas, biliary tract, lung, breast, prostate, and thyroid makes it a compelling bispecific T-cell engager (TCE) target when reliably restricting antibody binding to the tumor microenvironment (TME). Preclinical studies using dual CAB BA3182 demonstrated potent antitumor activity in a human colorectal carcinoma xenograft model with a greater than a 100-fold improvement in the therapeutic index compa...