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BriaCell to Present Phase 2 Survival & Phase 3 Clinical Data at SABCS® 2025

Key Takeaway: BriaCell Therapeutics Corp. will present positive Phase 2 survival and Phase 3 biomarker data at the 2025 San Antonio Breast Cancer Symposium. The data highlights the potential of their novel immunotherapy and precision medicine in treating cancer. Key presentations will focus on patient subgroup data and biomarkers that may predict clinical benefits.
Price reaction · baseline $9.64 (2025-12-01 close) · hit after-hours · 1 other BCTX headline(s) in the window, move may be shared
day 0 close · peak
+3.7%

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POSITIVE FACTORS

  • Presentation of promising Phase 2 and Phase 3 data at SABCS 2025.
  • Encouraging survival and biomarker data indicating treatment potential.
  • Commitment to improve outcomes for cancer patients with unmet needs.

BiopharmaWatch Analysis

From our catalyst data and publicly available data · not financial advice
Best trade, last catalyst
+44%
120-day peak, hindsight
Typical move
14.8%
average across 8 past catalysts
Cash runway
~7 mo
Medium dilution risk
Lead asset
SV-BR-1-GM
Phase 3 · Breast Cancer

Full Press Release Details

PHILADELPHIA and VANCOUVER, British Columbia, Dec. 02, 2025 (GLOBE NEWSWIRE) -- BriaCell Therapeutics Corp. (Nasdaq: BCTX, BCTXW) (TSX: BCT) (“BriaCell” or the “Company”), a clinical-stage biotechnology company developing novel immunotherapies to transform cancer care, will be presenting positive Phase 2 survival, and Phase 3 biomarker data across three clinical posters at the 2025 San Antonio Breast Cancer Symposium (SABCS®) taking place December 9-12, 2025 at Henry B. Gonzalez Convention Center, 900 E. Market Street, San Antonio, Texas.
“Our survival and biomarker data at SABCS is very encouraging because it underscores the potential of our novel immunotherapy and precision medicine to treat cancer patients,” stated William V. Williams, MD, BriaCell’s President & CEO. “We remain committed to improve survival and clinical outcomes in cancer patients whose medical needs remain unmet.”
“We are extremely pleased with biomarker and patient subgroup data suggesting their use for identifying patients who are most likely to benefit from our treatment,” stated Dr. Giuseppe Del Priore, BriaCell’s Chief Medical Officer.
The details of the poster presentations are listed below.
Late-Breaking Abstract Number:3688Presentation Number:PS1-13-22Presentation Title:Impact of Prior Therapy, Genotype Matching, and Biomarkers in the Bria-ABC Phase 3 TrialPoster Presentation Date/Time:Wednesday, December 10, 2025, 12:30 PM - 2:00 PM
A pooled interim analysis of 116 patients with available MHC subtyping in the ongoing pivotal phase III study demonstrated an excellent safety profile, improved progression-free-survival (PFS) n HR+/HER-2 and HER2- low subtypes and potential use of Neutrophil to Lymphocyte Ratio (NLR) as a biomarker of clinical benefit,
Late-Breaking Abstract Number:3713Presentation Number:PS1-13-23Presentation Title:Survival Results of Phase II Bria-IMT Allogenic Whole Cell-Based Cancer VaccinePoster Presentation Date/Time:Wednesday, December 10, 2025, 12:30 PM - 2:00 PM
Maturing data analysis of the of the Phase 1/2 study evaluating the Bria-IMT regimen in combination with an anti–PD-1 checkpoint inhibitor (CPI) in 54 metastatic breast cancer demonstrated continued overall survival benefit with potential use of delayed type hypersensitivity (DTH) as a biomarker predictive of clinical benefit.
Abstract Number:1614Presentation Number:PS2-09-03Presentation Title:Th1-biased cytokine signatures as biomarkers of clinical benefit following SV-BR-1-GM cancer vaccination in breast cancer.Poster Presentation Date/Time:Wednesday, December 10, 2025, 5:00 PM - 6:30 PM
Analysis of 35 different blood cytokines/chemokines from 30 patients enrolled in the Phase 1/2 studies of Bria-IMT alone or in combination with an immune checkpoint inhibitor (CPI) suggests that Th1 biased cytokines and chemokines may serve as potential predictive biomarkers of clinical responses to the Bria-IMT regimen in metastatic breast cancer
Copies of the posters will be made available athttps://briacell.com/scientific-publications/.

About BriaCell Therapeutics Corp.

BriaCell is a clinical-stage biotechnology company that develops novel immunotherapies to transform cancer care. More information is available athttps://briacell.com/.

Safe Harbor

This press release contains “forward-looking statements” that are subject to substantial risks and uncertainties. All statements, other than statements of historical fact, contained in this press release are forward-looking statements. Forward-looking statements contained in this press release may be identified by the use of words such as “anticipate,” “believe,” “contemplate,” “could,” “estimate,” “expect,” “intend,” “seek,” “may,” “might,” “plan,” “potential,” “predict,” “project,” “target,” “aim,” “should,” “will,” “would,” or the negative of these words or other similar expressions, although not all forward-looking statements contain these words. Forward-looking statements, including those about presenting three posters at the 2025 SABCS, and the contents of such posters, are based on BriaCell’s current expectations and are subject to inherent uncertainties, risks, and assumptions that are difficult to predict. Further, certain forward-looking statements are based on assumptions as to future events that may not prove to be accurate. These and other risks and uncertainties are described more fully under the heading “Risks and Uncertainties” in the Company’s most recent Management’s Discussion and Analysis, under the heading “Risk Factors” in the Company’s most recent Annual Information Form, and under “Risks and Uncertainties” in the Company’s other filings with the Canadian securities regulatory authorities and the U.S. Securities and Exchange Commission, all of which are available under the Company’s profiles on SEDAR+ atwww.sedarplus.caand on EDGAR atwww.sec.gov. Forward-looking statements contained in this announcement are made as of this date, and BriaCell Therapeutics Corp. undertakes no duty to update such information except as required under applicable law.
Neither the Toronto Stock Exchange nor its Regulation Services Provider (as that term is defined in the policies of the Toronto Stock Exchange) accepts responsibility for the adequacy or accuracy of this release.

Company Contact:William V. Williams, MDPresident & CEO1-888-485-6340info@briacell.com

Investor Relations Contact:investors@briacell.com

Frequently Asked Questions

What data will BriaCell present at SABCS 2025?

BriaCell will present Phase 2 survival and Phase 3 biomarker data.

When is the SABCS 2025 event taking place?

The SABCS 2025 event will occur from December 9-12, 2025.

What is the focus of BriaCell's presentations?

The presentations will focus on survival data and biomarkers in cancer treatment.

Who is BriaCell's CEO?

William V. Williams, MD, is the President & CEO of BriaCell.

Last updated: Dec 2, 2025