Carisma Therapeutics Reports First Quarter 2023 Financial Results and Provides Business Highlights
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Carisma Therapeutics Reports First Quarter 2023 Financial Results and Provides Business Highlights

Initiated a Phase 1 Sub-Study of CT-0508 in combination with KEYTRUDA® (pembrolizumab) in patients with HER2-overexpressing solid tumors

Expanded clinical manufacturing capacity through successful technology transfer of CT-0508 

Closed merger with Sesen Bio and commenced trading on Nasdaq under ticker symbol “CARM”

PHILADELPHIA, May 11, 2023 /PRNewswire/ — Carisma Therapeutics Inc. (Nasdaq: CARM) (“Carisma” or the “Company”), a clinical-stage biopharmaceutical company focused on discovering and developing innovative immunotherapies, today reported financial results for the first quarter ended March 31, 2023 and provided business highlights.

“In the first quarter, we closed our merger with Sesen Bio, Inc., which further strengthened our foundation to advance our pipeline through the end of 2024,” said Steven Kelly, President and Chief Executive Officer of Carisma. “With multiple potential value inflection points on the horizon, including the completion of our Phase 1 clinical trial of CT-0508 and the upcoming data from the clinical trial sub-study of CT-0508 in combination with KEYTRUDA®, we believe we are well positioned to continue driving innovation and delivering value to our stakeholders. We remain committed to advancing our pipeline and leveraging our expertise in chimeric antigen receptor (CAR)-macrophages to bring transformative therapies to patients in need.”

Pipeline Updates

  • CT-0508
    • Initiated a sub-study in the Company’s Phase 1 clinical trial that will test the safety and tolerability of Carisma’s lead candidate, CT-0508, a human epidermal growth factor receptor 2 (HER2) targeted chimeric antigen receptor macrophage (CAR-M) in combination with Merck’s anti-PD1 therapy KEYTRUDA® (pembrolizumab) for the treatment of HER2 overexpressing cancers.
    • Presented a trial-in-progress poster at The American Association for Cancer Research (AACR) Annual Meeting in April 2023 that provided an overview of Carisma’s Phase 1, first-in-human study of CT-0508.
    • Increased clinical manufacturing capacity by successfully completing a technology transfer of CT-0508 manufacturing to Novartis, including the first manufacturing run for a clinical trial patient.
  • CT-1119
    • Presented pre-clinical data at the AACR Annual Meeting demonstrating that CT-1119, an autologous human anti-mesothelin CAR-M, can phagocytose, eradicate, and induce an inflammatory response against mesothelin overexpressing solid tumors. The results show that CAR-M is potentially a feasible approach for the treatment of mesothelin overexpressing solid tumors.

Business Highlights

  • Completed merger with Sesen Bio and concurrent financing in March 2023. The Company closed its previously announced merger with Sesen Bio, Inc. (Sesen Bio), pursuant to which the combined company changed its name to “Carisma Therapeutics Inc.” and commenced trading on The Nasdaq Global Market under the symbol “CARM.” At the closing of the merger, taking into account the reverse stock split of shares of common stock of Sesen Bio prior to the closing, the combined company had approximately 40.3 million outstanding shares of common stock. The net assets acquired by the Company in the merger with Sesen Bio was $80.3 million. In addition, the Company raised $30.6 million from a concurrent financing.

  • Expanded Scientific Advisory Board (SAB) with additional expertise in solid tumor immunotherapy development capabilities. The Company appointed leading solid tumor immunotherapy expert Padmanee Sharma, M.D., Ph.D. to Carisma’s SAB in January 2023. Dr. Sharma is a nationally regarded cancer immunologist and professor in the departments of Genitourinary Medical Oncology and Immunology, Associate V.P. of Immunobiology and the T.C. and Jeanette D. Hsu Endowed Chair in Cell Biology at The University of Texas MD Anderson Cancer Center. Additionally, the Company appointed Moderna Inc. (Moderna) CSO of External Research Ventures, Lin Guey, Ph.D. to Carisma’s SAB in February 2023. Dr. Guey is a leading expert in mRNA therapeutics and oversees Moderna’s collaboration with Carisma to develop in vivo CAR-M therapies.

Anticipated Upcoming Milestones

  • Additional data from Group 2 of Carisma’s Phase 1 clinical trial of CT-0508 expected in the second half of 2023.
  • Initial data from clinical trial sub-study of CT-0508 in combination with KEYTRUDA® expected in the second half of 2023.
  • Submission of Investigational New Drug application to the U.S. Food and Drug Administration for CT-0525, Carisma’s first anti-HER2 CAR-Monocyte product candidate, expected in the second half of 2023.
  • Nomination of additional target(s) under the Moderna development collaboration expected in 2023.

First Quarter 2023 Financial Results(1)

  • Cash, cash equivalents and marketable securities as of March 31, 2023 were $139.0 million, compared to $52.0 million as of December 31, 2022.
  • Research & development expenses were $16.6 million for the first quarter of 2023, compared to $8.8 million in 2022. The increase was primarily due to an increase in lab space and lab supplies, personnel costs due to growth in employee headcount, pre-clinical activities towards submission of an IND for CT-0525, and pre-clinical development expenses associated with the Moderna collaboration, partially offset by a $0.5 million decrease in direct costs associated with CT-0508.
  • General & administrative expenses were $9.6 million for the first quarter of 2023, compared to $2.2 million in 2022. The increase was primarily attributable to severance and payroll costs associated with the Sesen Bio merger, an increase in headcount, costs associated with Carisma’s patent portfolio, costs associated with expanding infrastructure in preparation of operating as a public company and public relation expenditures.
  • Net loss was $24.6 million for the first quarter of 2023, compared to net loss of $11.3 million for the same period in 2022, primarily due to increased research and development expenses, which was partially offset by Moderna collaboration revenue.

(1) All prior year comparisons are relative to CTx Operations, Inc. (formerly CARISMA Therapeutics Inc.), which merged with and into a subsidiary of the Company in connection with the closing of the merger with Sesen Bio, surviving as a wholly owned subsidiary of the Company. Following the completion of the merger, the business conducted by the Company became primarily the business conducted by Carisma.


Carisma believes that its cash, cash equivalents and marketable securities of $139.0 million as of March 31, 2023 are sufficient to sustain Carisma’s planned operations through the end of 2024.

About CT-0508

CT-0508 is a human epidermal growth factor receptor 2 (HER2) targeted chimeric antigen receptor macrophage (CAR-M). It is being evaluated in a landmark Phase 1 multi-center clinical trial that focuses on patients with recurrent or metastatic HER2-overexpressing solid tumors whose cancers are not eligible for treatment with currently available HER2-targeted therapies or who do not respond to treatment. We are selecting participants who have tumors of any anatomical origin, but with the commonality of overexpressing the HER2 receptor on the cell surface, which is the target for our CAR-M. The Phase 1 clinical trial is first-of-its-kind, marking the first time that genetically engineered macrophages are being studied in humans. The trial continues to enroll patients at seven clinical sites in the U.S., including (i) the University of Pennsylvania Abramson Cancer Center, (ii) the University of North Carolina Lineberger Comprehensive Cancer Center, (iii) the City of Hope National Medical Center, (iv) the MD Anderson Cancer Center, (v) the Sarah Cannon Cancer Research Institute, (vi) Oregon Health & Science University and (vii) Fred Hutchinson Cancer Center.

About Carisma Therapeutics

Carisma Therapeutics Inc. is a clinical stage biopharmaceutical company focused on utilizing our proprietary macrophage and monocyte cell engineering platform to develop transformative immunotherapies to treat cancer and other serious diseases.  We have created a comprehensive, differentiated proprietary cell therapy platform focused on engineered macrophages and monocytes, cells that play a crucial role in both the innate and adaptive immune response. The first applications of the platform, developed in collaboration with the University of Pennsylvania, are autologous chimeric antigen receptor (CAR)-macrophages for the treatment of solid tumors. Carisma is headquartered in Philadelphia, PA. For more information, please visit www.carismatx.com.

Cautionary Note on Forward-Looking Statements

Statements in this press release about future expectations, plans and prospects, as well as any other statements regarding matters that are not historical facts, may constitute “forward-looking statements” within the meaning of The Private Securities Litigation Reform Act of 1995. These statements include, but are not limited to, statements relating to Carisma’s business, strategy and future operations, cash runway, the advancement of Carisma’s product candidates and product pipeline, and clinical development of Carisma’s product candidates, including expectations regarding timing of initiation and results of clinical trials. The words “”anticipate,” “believe,” “contemplate,” “continue,” “could,” “estimate,” “expect,” “goals,” “intend,” “may,” “might,” “outlook,” “plan,” “project,” “potential,” “predict,” “target,” “possible,” “will,” “would,” “could,” “should,” and similar expressions are intended to identify forward-looking statements, although not all forward-looking statements contain these identifying words. Any forward-looking statements are based on management’s current expectations of future events and are subject to a number of risks and uncertainties that could cause actual results to differ materially and adversely from those set forth in, or implied by, such forward-looking statements. These risks and uncertainties include, but are not limited to, (i) risks associated with the possible failure to realize certain anticipated benefits of the merger, including with respect to future financial and operating results; (ii) Carisma’s ability to obtain, maintain and protect its intellectual property rights related to its product candidates; (iii) Carisma’s ability to advance the development of its product candidates under the timelines it anticipates in planned and future clinical trials; (iv) Carisma’s ability to replicate in later clinical trials positive results found in preclinical studies and early-stage clinical trials of its product candidates; (v) Carisma’s ability to realize the anticipated benefits of its research and development programs, strategic partnerships, research and licensing programs and academic and other collaborations; (vi) regulatory requirements or developments and Carisma’s ability to obtain and maintain necessary approvals from the U.S. Food and Drug Administration and other regulatory authorities; (vii) changes to clinical trial designs and regulatory pathways; (viii) Carisma’s commercialization and manufacturing capabilities and strategy; (ix) risks associated with Carisma’s ability to manage expenses; (x) Carisma’s competitive position; (xi) changes in capital resource requirements; (xii) risks related to the inability of Carisma to obtain sufficient additional capital to continue to advance its product candidates and its preclinical programs; and (xiii) legislative, regulatory, political and economic developments. For a discussion of other risks and uncertainties, and other important factors, any of which could cause Carisma’s actual results to differ from those contained in the forward-looking statements, see the “Risk Factors” set forth in Exhibit 99.3 to Company’s Current Report on Form 8-K filed with the Securities and Exchange Commission (SEC) on March 8, 2023, Carisma’s Annual Report on Form 10-K for the year ended December 31, 2022 filed with the SEC on February 28, 2023 and Carisma’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2023 to be filed with the SEC on May 11, 2023, as well as discussions of potential risks, uncertainties, and other important factors in Carisma’s most recent filings with the Securities and Exchange Commission. Any forward-looking statements that are made in this press release speak as of the date of this press release. Carisma undertakes no obligation to revise the forward-looking statements or to update them to reflect events or circumstances occurring after the date of this press release, whether as a result of new information, future developments or otherwise, except as required by the federal securities laws.

Media Contact:

Julia Stern

(763) 350-5223


Investor Contact:



Unaudited Consolidated Balance Sheets

(in thousands, except share and per share data)

March 31,


December 31,



Current assets:

Cash and cash equivalents





Marketable securities



Prepaid expenses and other assets



Total current assets



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Right of use assets – operating leases



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Liabilities, Convertible Preferred Stock and Stockholders’ Equity (Deficit)

Current liabilities:

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Convertible promissory note


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Convertible preferred stock


Stockholders’ equity (deficit):

Common stock $0.001 par value, 100,000,000 shares authorized, 40,254,666 and

     2,217,708 shares issued and outstanding at March 31, 2023 and December 31,

     2022, respectively



Additional paid-in capital



Accumulated other comprehensive income (loss)



Accumulated deficit



Total Carisma Therapeutics Inc. stockholders’ equity (deficit)



Noncontrolling interests


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Unaudited Consolidated Statements of Operations and Comprehensive Loss

(in thousands, except share and per share data)

Three Months Ended

March 31,



Collaboration revenues





Operating expenses:

Research and development



General and administrative



Total operating expenses



Operating loss



Change in fair value of derivative liability



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Pre-tax loss



Income tax expense


Net loss





Share information:

Net loss per share of common stock, basic and diluted





Weighted-average shares of common stock outstanding, basic and diluted



Comprehensive loss

Net loss





Unrealized gain (loss) on marketable securities



Comprehensive loss






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SOURCE Carisma Therapeutics Inc.

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