CERo Therapeutics to Present Data at the Society for Immunotherapy of Cancer Conference Highlighting Lead Compound CER-1236 Sustained Cell Expansion and Cytokine Response

Newly released preclinical data to be presented in a poster on November 8, 2025

SOUTH SAN FRANCISCO, Calif., Nov. 04, 2025 (GLOBE NEWSWIRE) -- CERo Therapeutics Holdings, Inc., (OTC:CERO) ("CERo" or the "Company"), an innovative cellular immunotherapy company pursuing new targets and novel phagocytic mechanisms, announces it will be presenting data on its lead compound CER-1236 at the Society for Immunotherapy of Cancer (SITC) conference being held November 5-9, 2025 in National Harbor, Md.

The poster, titled, "CER-1236, an investigational T cell product targeting TIM-4 Ligand, exhibits sustained effector function and resistance to exhaustion," highlights preclinical data showing the durability of activity for CER-1236. Data demonstrates sustained cell expansion across multiple rounds of antigen stimulation in combination with a robust cytokine response, compared to CD3/CD28 polyclonal stimulation, which induced strong initial activation, but led to cell exhaustion.

CERo CEO Chris Ehrlich said, "We believe these data are supportive of what we have seen in broad terms in our Phase 1 trial, while providing additional insight that we believe will be useful as we continue development. SITC is a prestigious conference in the space, and we are grateful for the continued recognition for our science."

The Company is currently conducting the first-in-human, multi-center, open label, Phase 1/1b study is designed to evaluate the safety and preliminary efficacy of CER-1236 in patients with acute myeloid leukemia that is either relapsed/refractory, or in remission with measurable residual disease, or newly diagnosed patients with TP53 mutated MDS/AML or AML. The two-part study initiated with dose escalation to determine the highest tolerated dose and recommended dose for Phase 2, followed by an expansion phase to evaluate safety and efficacy.  Primary outcome measures include incidence of adverse events (AEs) and serious adverse events (SAEs), incidence of dose limited toxicities and estimation of overall response rate (ORR), complete response (CR), composite complete response (cCR), and measurable residual disease (MRD).  Secondary outcome measures include pharmacokinetics (PK).

About CERo Therapeutics Holdings, Inc.

CERo is an innovative immunotherapy company advancing the development of next generation engineered T cell therapeutics for the treatment of cancer. Its proprietary approach to T cell engineering integrates key functional attributes of both innate and adaptive immunity within a single therapeutic construct, designed to engage the body's immune repertoire for more comprehensive tumor targeting. This novel cellular immunotherapy platform is designed to redirect patient-derived T cells toward tumor cells through both adaptive perforin/granzyme pathways and innate engulfment mechanisms. The latter employ phagocytic activity to destroy cancer cells, creating what CERo refers to as Chimeric Engulfment Receptor T cells ("CER-T"). CERo believes the differentiated targeting properties of CER-T cells may offer advantages compared with currently approved CAR-T therapies and could potentially extend the reach of cellular immunotherapy to both hematologic malignancies and solid tumors. CERo has initiated clinical trials for its lead product candidate, CER-1236, for hematologic malignancies.

Forward-Looking Statements

This communication contains statements that are forward-looking and as such are not historical facts. This includes, without limitation, statements regarding the financial position, business strategy and the plans and objectives of management for future operations of CERo. These statements constitute projections, forecasts and forward-looking statements, and are not guarantees of performance. Such statements can be identified by the fact that they do not relate strictly to historical or current facts. When used in this communication, words such as "anticipate," "believe," "continue," "could," "estimate," "expect," "intend," "may," "might," "plan," "possible," "potential," "predict," "project," "should," "strive," "would" and similar expressions may identify forward-looking statements, but the absence of these words does not mean that a statement is not forward-looking. When CERo discusses its strategies or plans, it is making projections, forecasts or forward-looking statements. Such statements are based on the beliefs of, as well as assumptions made by and information currently available to, CERo's management.

Actual results could differ from those implied by the forward-looking statements in this communication. Certain risks that could cause actual results to differ are set forth in CERo's filings with the Securities and Exchange Commission, including its most recent Annual Report on Form 10-K and subsequent Quarterly Reports on Form 10-Q, and the documents incorporated by reference therein. The risks described in CERo's filings with the Securities and Exchange Commission are not exhaustive. New risk factors emerge from time to time, and it is not possible to predict all such risk factors, nor can CERo assess the impact of all such risk factors on its business, or the extent to which any factor or combination of factors may cause actual results to differ materially from those contained in any forward-looking statements. Forward-looking statements are not guarantees of performance. You should not put undue reliance on these statements, which speak only as of the date hereof. All forward-looking statements made by CERo or persons acting on its behalf are expressly qualified in their entirety by the foregoing cautionary statements. CERo undertakes no obligation to update or revise publicly any forward-looking statements, whether as a result of new information, future events or otherwise, except as required by law.

Contact:

Chris Ehrlich

Chief Executive Officer

[email protected]

Investors:

CORE IR

[email protected]