TScan Therapeutics Reports Fourth Quarter and Full Year 2025 Financial Results and Provides Business Update

On March 4, 2026 TScan Therapeutics, Inc. (Nasdaq: TCRX), a clinical-stage biotechnology company focused on the development of T cell receptor (TCR)-engineered T cell (TCR-T) therapies for the treatment of patients with cancer, reported financial results for the three months and full year ended December 31, 2025, and provided business updates.

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"The regulatory and operational progress we have made over the last several months related to our heme program is exciting. We expect the momentum to continue into the second quarter when we plan to share the initial data from patients enrolled into Cohort C in the ALLOHA study as well as initiate TScan’s first Phase 3 trial," said Gavin MacBeath, Ph.D., Chief Executive Officer. "The data we presented at ASH (Free ASH Whitepaper) in December 2025 continue to support our decision to focus the Company’s efforts on development of therapeutics for patients with heme malignancies. Additionally, the recent FDA clearance of INDs for TSC-102-A01 and TSC-102-A03 will allow us to bring our TCR-T therapies to twice as many patients who currently have limited options in the post-transplant setting."

Recent Corporate Updates: Hematologic Malignancies Program


In December 2025, the Company presented positive updated data from the ALLOHA Phase 1 heme trial at the 67th American Society of Hematology (ASH) (Free ASH Whitepaper) Annual Meeting and Exposition.

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TSC-101 was well-tolerated with no dose-limiting toxicities observed.
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Treatment arm continues to demonstrate favorable relapse-free survival (HR=0.50; p=0.23) and overall survival (HR=0.61; p=0.52).
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3/3 (100%) of TSC-101-treated patients who reached two-year follow-up remained relapse-free compared to 1/4 (25%) in the control arm.


In February 2026, the U.S. Food and Drug Administration (FDA) cleared the Company’s investigational new drug (IND) applications for TSC-102-A01 and TSC-102-A03. These TCR-T therapy candidates target CD45, a protein that is broadly expressed in heme cells but absent in non-heme tissues. TSC-102-A01 and TSC-102-A03 are allogeneic, donor-derived TCR-T therapy candidates designed to eliminate residual cancer and prevent relapse in patients with heme malignancies who are undergoing allogeneic hematopoietic cell transplantation (HCT) using either reduced intensity conditioning or myeloablative conditioning. TSC-102-A01 and TSC-102-A03 are designed to treat patients who are HLA-A*01:01- or HLA-A*03:01-positive, respectively, and are paired with donors who are negative for the HLA allele. The Company plans to initiate a Phase 1 study with these candidates in the second half of this year.


In February 2026, TScan announced completion of enrollment in Cohort C of the Phase 1 ALLOHA trial, where patients are being dosed with TSC-101 manufactured using its commercial-ready manufacturing process.


In February 2026, the Company presented a poster at the 2026 Transplantation & Cellular Therapy Meetings of ASTCT and CIBMTR (Tandem Meetings). The poster can be found on the "Publications" page of the Company’s website at tscan.com.

Upcoming Anticipated Milestones: Heme Malignancies Program

TScan’s lead TCR-T therapy candidate, TSC-101, is designed to treat residual disease and prevent relapse in patients with heme malignancies undergoing allogeneic HCT (the ALLOHA trial, NCT05473910).


Share early clinical data on patients treated in Cohort C of the ALLOHA study in the second quarter of 2026.

Launch pivotal trial for TSC-101 in the second quarter of 2026.

Share updated data on patients treated in Cohort C of the ALLOHA study in the second half of 2026.

Initiate Phase 1 study of TSC-102-A01 and TSC-102-A03 in the second half of 2026.

Recent Corporate Updates: Early Pipeline

Solid Tumor Program:
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In November 2025, the Company announced the discontinuation of the PLEXI-T trial. Clinical data on initial patients treated in the study have been disclosed in the Company’s 2025 Form 10-K filed with the Securities and Exchange Commission on March 4, 2026.
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The Company is currently developing methods to engineer TCR-T cells in vivo to treat solid tumors.

Autoimmunity Program:

The Company is leveraging their target discovery platform to identify targets for a set of T-cell-driven autoimmune disorders and is currently developing potential treatment options.
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The Company anticipates sharing preclinical proof-of-concept data for its therapeutic approach in the second half of 2026.

Financial Results

Revenue: Revenue for the fourth quarter of 2025 was $2.6 million, compared to $0.7 million for the fourth quarter of 2024, and $10.3 million for the full-year 2025, compared to $2.8 million for the full-year 2024. The increase in both periods was primarily due to timing of research activities pursuant to the Company’s collaboration agreement with Amgen.

R&D Expenses: Research and development (R&D) expenses for the fourth quarter of 2025 were $20.0 million, compared to $29.4 million for the fourth quarter of 2024, and $114.2 million for the full-year 2025, compared to $107.4 million for the full-year 2024. The year over year increase was primarily driven by increased manufacturing and clinical activities, with the quarter over quarter decrease primarily driven by timing of manufacturing activities, as well as savings in connection with the Company’s previously announced strategy to prioritize the clinical development of its heme program. R&D expenses included non-cash stock compensation expense of $0.9 million and $1.3 million for the fourth quarter of 2025 and 2024, respectively, and $6.0 million and $4.8 million for the full-year 2025 and 2024, respectively.

G&A Expenses: General and administrative (G&A) expenses for the fourth quarter of 2025 were $6.4 million, compared to $8.0 million for the fourth quarter of 2024, and $32.0 million for the full-year 2025, compared to $30.3 million for the full-year 2024. The year-over-year increase was primarily driven by personnel costs to support business activities, with the quarter-over-quarter decrease primarily driven by savings in connection with the Company’s previously announced strategy to prioritize the clinical development of its heme program. G&A expenses included non-cash stock compensation expense of $1.1 million and $1.4 million for the fourth quarter of 2025 and 2024, respectively, and $5.7 million and $4.7 million for the full-year 2025 and 2024, respectively.

Net Loss: Net loss was $23.0 million for the fourth quarter of 2025, compared to $35.8 million for the fourth quarter of 2024, and included net interest income of $0.9 million and $2.0 million, respectively. Net loss for the full-year 2025 was $129.8 million, compared to $127.5 million for the full-year 2024, and included net interest income of $6.0 million and $8.4 million, respectively. Net loss for the fourth quarter of 2024 and full-year 2024 included a $1.1 million loss on extinguishment of debt.

Cash Position: Cash and cash equivalents as of December 31, 2025 were $152.4 million, excluding $5.0 million of restricted cash. The Company believes that its existing cash resources will be sufficient to fund its current operating plan into the second half of 2027.

Share Count: As of December 31, 2025, the Company had 56,901,623 issued and outstanding shares of common stock, consisting of 52,625,035 shares of voting common stock and 4,276,588 shares of non-voting common stock, as well as 73,011,767 outstanding pre-funded warrants to purchase shares of voting common stock at an exercise price of $0.0001 per share. Pro forma outstanding shares, inclusive of both common stock and prefunded warrants, were 129,913,390 as of December 31, 2025.

(Press release, TScan Therapeutics, MAR 4, 2026, View Source [SID1234663251])