Candel Therapeutics Reports First Quarter 2025 Financial Results and Recent Corporate Highlights

On May 13, 2025 Candel Therapeutics, Inc. (Candel or the Company) (Nasdaq: CADL), a clinical stage biopharmaceutical company focused on developing multimodal biological immunotherapies to help patients fight cancer, reported financial results for the first quarter ended March 31, 2025, and provided a corporate update (Press release, Candel Therapeutics, MAY 13, 2025, View Source [SID1234652957]).

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"During the quarter, we continued our strong momentum of compelling clinical evidence, reinforcing our promising pipeline of pan solid tumor immunotherapies," said Paul Peter Tak, MD PhD FMedSci, President and CEO of Candel. "Our primary focus for 2025 remains on working toward CAN-2409’s BLA submission for prostate cancer, which we believe represents a very significant unmet medical need and opportunity for value creation. In this indication, we observed the ability of CAN-2409 to reduce the risk of prostate cancer recurrence compared to standard of care, through meeting the primary endpoint agreed with the FDA under a Special Protocol Assessment in a phase 3 clinical trial. We are now focusing on executing strategic preparations for potential commercialization, to ensure that, if approved, CAN-2409 is immediately available to patients with localized prostate cancer."

Dr. Tak continued, "CAN-2409, Candel’s most advanced multimodal biological immunotherapy candidate, continues to demonstrate meaningful overall survival benefits in patients with advanced NSCLC, non-responsive to immune checkpoint inhibitors, as well as in patients with borderline resectable PDAC. The totality of data showing notable extension of survival based on both phase 2a clinical trials in NSCLC and PDAC, respectively, suggests that CAN-2409 has the potential to represent a transformative treatment option for patients with difficult-to-treat solid tumors. The FDA Fast Track Designation for each indication further validates the potential of this novel approach to address significant unmet medical needs in oncology."

First Quarter 2025 & Recent Highlights


CAN-2409 – Prostate Cancer

Positive phase 3 results from the CAN-2409 clinical trial in intermediate-to-high risk localized prostate cancer have been selected for an oral presentation at the upcoming 2025 ASCO (Free ASCO Whitepaper) Annual Meeting, taking place May 30 to June 3, 2025, in Chicago, IL.


This phase 3 study was conducted under a Special Protocol Assessment (SPA) agreed with the U.S. Food and Drug Administration (FDA), meaning that certain data generated from this study could be sufficient for the Company to seek regulatory approval for CAN-2409 in this indication.


The Company continues to work toward a Q4 2026 BLA submission for prostate cancer, following the positive topline data from its multicenter, randomized, placebo-controlled phase 3 clinical trial evaluating CAN-2409 in intermediate-to-high-risk localized prostate cancer patients.


The FDA previously granted Fast Track Designation for CAN-2409 for the treatment of localized primary prostate cancer.


CAN-2409 – Pancreatic Cancer

Positive final survival data from the randomized controlled phase 2a clinical trial of CAN-2409 in borderline resectable PDAC demonstrated notable improvement in overall survival compared to standard of care. Patients who had received experimental treatment with CAN-2409 and chemoradiotherapy achieved a mOS of 31.4 months versus 12.5 months observed in the control arm treated with chemoradiotherapy.


Notably, three long-term survivors in the CAN-2409 arm remained alive at 66.0, 63.6, and 35.8-months post-treatment, whereas only one patient from the control arm was still alive at the time of data cut-off (February 20, 2025). Patients in the CAN-2409 arm were stable at the time of last follow up with minimal maintenance therapy and, despite previous recurrence, experienced extended and ongoing post-progression survival, further highlighting the sustained benefit of CAN-2409, even in metastatic disease.


The FDA previously granted Orphan Drug Designation and Fast Track Designation for CAN-2409 in borderline resectable PDAC.


CAN-2409 – Non-Small Cell Lung Cancer

In March, the Company reported final survival data from its phase 2a clinical trial of CAN-2409 in patients with stage III/IV NSCLC, inadequately responding to ICI treatment.


In patients with an inadequate response to ICI treatment (Cohort 1+2, n=46), mOS was 24.5 months.


In patients with progressive disease, despite ICI treatment (Cohort 2, n=41), mOS was 21.5 months, which is markedly longer than the 9.8–11.8 months of survival reported in published literature1,2 in the same patient population receiving standard of care of docetaxel chemotherapy.


37% of patients with progressive disease at enrollment were still alive > 24 months after CAN-2409 treatment at the time of the March 3, 2025 data cut, suggesting a long tail of survival. 14/15 patients with overall survival > 24 months and 9/9 patients with overall survival > 30 months had non-squamous NSCLC.


In patients with non-squamous NSCLC and progressive disease despite ICI (cohort 2, n=33), observed mOS was 25.4 months after CAN-2409 treatment.


A decrease in the size of uninjected tumors was observed in 69% of patients with multiple lesions (n=35), indicating that a local injection is associated with a systemic anti-tumor immune response.


CAN-2409 maintained its generally favorable safety and tolerability profile throughout the extended follow-up period.


The FDA previously granted Fast Track Designation for CAN-2409 for the treatment of NSCLC.


Recent Corporate Events

In March 2025, the Company entered a strategic, commercial collaboration with IDEA Pharma, a Division of SAI MedPartners (IDEA). Under this agreement, IDEA will provide strategic commercial input throughout the development and commercialization process for Candel’s lead asset, CAN-2409. Through this collaboration, Candel will gain access to a dedicated team of experts with extensive experience in oncology commercialization and go-to-market strategy optimization.


In March 2025, the Company appointed Elizabeth M. Jaffee, M.D., to its Research Advisory Board (RAB). Dr. Jaffee, an internationally recognized expert in cancer immunology and pancreatic cancer, brings her extensive expertise to the RAB, which is important in light of the Company’s focus on borderline resectable pancreatic cancer.


Publication

Manuscript published in the March 2025 online edition of Neuro-Oncology, reporting results of a phase 1b clinical trial exploring safety and tolerability of the combination of CAN-2409 plus prodrug (valacyclovir) and nivolumab, in addition to standard of care (neurosurgery, radiotherapy, and temozolomide), in patients with newly diagnosed rHGG.

Anticipated Milestones


Clinical and biomarker activity data from an ongoing phase 1b clinical trial evaluating repeat doses of CAN-3110 in patients with rHGG expected in Q4 2025.


Submission of BLA for CAN-2409 in prostate cancer expected in Q4 2026.

Financial Results for the First Quarter Ended March 31, 2025

Research and Development Expenses: Research and development expenses were $4.0 million for the first quarter of 2025 compared to $4.1 million for the first quarter of 2024. The decrease was primarily due to a decrease in employee-related expenses, partially offset by an increase in manufacturing costs, in support of the Company’s CAN-2409 programs. Research and development expenses included a non-cash stock compensation expense of ($0.1) million for the first quarter of 2025, as compared to a non-cash stock compensation expense of $0.6 million for the first quarter of 2024.

General and Administrative Expenses: General and administrative expenses were $4.1 million for the first quarter of 2025, compared to $3.8 million for the first quarter of 2024. The increase was primarily due to higher professional and consulting fees. General and administrative expenses included non-cash stock compensation expense of $0.4 million for the first quarter of 2025, as compared to a non-cash stock compensation expense of $0.5 million for the first quarter of 2024.

Net Income/Loss: Net income for the first quarter of 2025 was $7.4 million compared to a net loss of $8.2 million for the first quarter of 2024 and included net other income of $15.5 million and net other expense of $0.3 million, respectively. The increase in net income was primarily related to the change in the fair value of the Company’s warrant liability.

Cash Position: Cash and cash equivalents, as of March 31, 2025, were $92.2 million, as compared to $102.7 million as of December 31, 2024. Based on current plans and assumptions, the Company expects that its existing cash and cash equivalents will be sufficient to fund its current operating plan into the first quarter of 2027.

About CAN-2409

CAN-2409 (aglatimagene besadenovec), Candel’s most advanced multimodal biological immunotherapy candidate, is an investigational, off-the-shelf, replication-defective adenovirus designed to deliver the herpes simplex virus thymidine kinase (HSV-tk) gene to a patient’s specific tumor and induce an individualized, systemic immune response against the tumor. HSV-tk is an enzyme that locally converts orally administered valacyclovir into a toxic metabolite that kills nearby cancer cells. Together, this regimen is designed to induce an individualized and specific CD8+ T cell-mediated response against the injected tumor and uninjected distant metastases for broad anti-tumor activity, based on in situ immunization against a variety of tumor antigens. Because of its versatility, CAN-2409 has the potential to treat a broad range of solid tumors. Encouraging monotherapy activity as well as combination activity with standard of care radiotherapy, surgery, chemotherapy, and ICI have previously been shown in several preclinical and clinical settings. More than 1,000 patients have been dosed with CAN-2409 with a favorable tolerability profile to date, supporting the potential for combination with other therapeutic strategies.

Currently, Candel is evaluating CAN-2409 in NSCLC and borderline resectable PDAC and has recently completed a successful phase 3 clinical trial in localized prostate cancer. CAN-2409 plus prodrug (valacyclovir) has been granted Fast Track Designation by the FDA for the treatment of PDAC, stage III/IV NSCLC in patients who are resistant to first line PD-(L)1 inhibitor therapy and who do not have activating molecular driver mutations or have progressed on directed molecular therapy, and localized primary prostate cancer. Candel’s pivotal phase 3 clinical trial in prostate cancer was conducted under a SPA agreed with the FDA. The FDA has also granted Orphan Drug Designation to CAN-2409 for the treatment of PDAC.

About CAN-3110

CAN-3110 is a first-in-class, replication-competent herpes simplex virus-1 (HSV-1) next-generation oncolytic viral, immunotherapy candidate designed for dual activity for oncolysis and immune activation in a single therapeutic. CAN-3110 is being evaluated in a phase 1b clinical trial in patients with rHGG. In October 2023, the Company announced that Nature published results from this ongoing clinical trial. CAN-3110 was well tolerated with no dose-limiting toxicity reported. In the clinical trial, the investigators observed improved median overall survival compared to historical controls after a single CAN-3110 injection in this therapy-resistant condition.3 The Company and academic collaborators are currently evaluating the effects of repeat CAN-3110 injections in rHGG, supported by the Break Through Cancer foundation. CAN-3110 has previously received FDA Fast Track Designation and Orphan Drug Designation for the treatment of rHGG.

About the enLIGHTEN Discovery Platform

The enLIGHTEN Discovery Platform is a systematic, iterative HSV-based discovery platform leveraging human biology and advanced analytics to create new multimodal biological immunotherapies for solid tumors. The enLIGHTEN Discovery Platform has been designed to deconvolute the characteristics of the tumor microenvironment related to clinical outcomes. These characteristics are rapidly translated into optimized multi-gene payloads of tumor modulators that can be delivered to the tumor microenvironment for specific indications, disease stages, and rationally designed therapeutic combinations. In 2022, the Company announced a discovery partnership with the University of Pennsylvania Center for Cellular Immunotherapies to create new viral immunotherapies that could enhance the efficacy of chimeric antigen receptor T cell (CAR-T) therapy in solid tumors. During the 2023 Society for Immunotherapy of Cancer (SITC) (Free SITC Whitepaper) Annual Meeting and the 2023 International Oncolytic Virotherapy Conference (IOVC) Meeting, Candel presented encouraging data on the first candidate from this platform, Alpha 201-macro-1, which was designed to interfere with the CD47/SIRP1α pathway, in mouse models of breast cancer and lung cancer. During the 2024 American Association for Cancer Research (AACR) (Free AACR Whitepaper) Annual Meeting, Candel presented preclinical data, unveiling the second candidate from the enLIGHTEN Discovery Platform, a first-in-class multimodal immunotherapy candidate to induce tertiary lymphoid structures, being developed as a novel therapeutic for solid tumors. Candel also presented data on a multimodal viral therapeutic candidate encoding IL-12 and IL-15 at the 2024 IOVC meeting.