Arming the Immune System to Kill Cancer

Our “off the shelf” stem cells deliver a viral payload that first kills cancer cells locally, and then supercharges the immune system to fight metastatic disease.

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We are developing a new generation of targeted immunotherapies that  attack solid tumors, and then teach the immune system to hunt down cancer cells elsewhere in the body.

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Where does the “Calidi” name come from?

The Calidi name is derived from the spanish “caliente” meaning heat, which signifies that Calidi’s cancer treatment transforms immunologically “cold” tumors, which the immune system is unaware of,  becoming “hot” following Calidi’s treatment. The immune system is thus engaged, and attacks the primary tumor and also distant metastases.

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In the Pipeline: Next-Generation Therapies

Explore Calidi Biotherapeutics' robust and evolving lineup of innovative immunotherapies, each designed with precision and a vision for a healthier future.

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Meet the Visionaries Behind Calidi

Get to know the dedicated team at Calidi Biotherapeutics. A blend of experts and innovators, each member plays a pivotal role in our mission to redefine cancer treatment.

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Calidi Newsroom:
Stay Updated

Dive into the latest updates, research findings, and announcements from Calidi Biotherapeutics. Stay informed about our strides in the world of immunotherapy.

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Latest News

Press Release

Calidi Biotherapeutics Announces Pricing of $3.9 Million Registered Direct Offering and Concurrent Private Placement

SAN DIEGO, March 28, 2025 (GLOBE NEWSWIRE) -- Calidi Biotherapeutics, Inc. (NYSE AMERICAN: CLDI) (“Calidi” or the “Company”), a clinical-stage biotechnology company developing a new generation of targeted immunotherapies, today announced that it has entered into a definitive securities purchase agreement with a single institutional investor for the purchase and sale of 3,325,000 shares of the Company’s common stock at a per share purchase price of $0.65, and at the election of the investor, in lieu of the common stock, pre-funded warrants to purchase up to 2,728,000 shares of Common Stock at a price of $0.649 per pre-funded warrant, which represents the per share offering price for the common stock less the $0.001 per share exercise price for each such pre-funded warrant, in a registered direct offering.

March 28, 2025
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Press Release

Calidi Biotherapeutics and City of Hope Provide Update on a Phase 1 Clinical Trial with CLD-101 Virotherapy in Patients with Recurrent High-Grade Glioma

SAN DIEGO and LOS ANGELES, March 26, 2025 (GLOBE NEWSWIRE) -- Calidi Biotherapeutics, Inc. (NYSE American: CLDI) (“Calidi”), a clinical-stage biotechnology company developing a new generation of targeted antitumor virotherapies, and City of Hope, one of the largest and most advanced cancer research and treatment organizations in the United States, are pleased to jointly announce progress from a phase 1 clinical trial utilizing Calidi’s CLD-101 investigational agent (neural stem cell-based oncolytic virotherapy) that is administered intracerebrally. This trial is the first to evaluate the safety and therapeutic potential of a multiple-dose regimen of this novel virotherapy for recurrent high-grade glioma - among the most aggressive and deadly forms of brain cancer.

March 26, 2025
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Press Release

Calidi Biotherapeutics Announces Demonstrated Ability To Deliver Transient Gene Therapy (Payload) To Tumors Using Systemic Platform

SAN DIEGO, March 10, 2025 (GLOBE NEWSWIRE) -- Calidi Biotherapeutics Inc. (NYSE American: CLDI) (“Calidi”), a clinical-stage biotechnology company developing a new generation of targeted antitumor virotherapies, today announced promising preclinical results for its systemic RTNova platform. The platform has successfully delivered transient gene therapy payloads to targeted tumors. Additionally, Calidi's tumor-specific virotherapy has demonstrated efficacy in killing over 60 different tumor cell lines.

March 10, 2025
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