TCR² Therapeutics Reports Fourth Quarter 2021 Financial Results and Provides Corporate Update

CAMBRIDGE, Mass., March 22, 2022 (GLOBE NEWSWIRE) -- TCR² Therapeutics Inc. (Nasdaq: TCRR), a clinical-stage cell therapy company with a pipeline of novel T cell therapies for cancer patients suffering from solid tumors, today announced financial results for the fourth quarter ended December 31, 2021 and provided a corporate update.

"Consistent execution throughout the last year has positioned TCR² for a series of important readouts as we accelerate our clinical progress in 2022," said Garry Menzel, Ph.D., President and Chief Executive Officer of TCR² Therapeutics. "We were able to successfully conclude the dose escalation portion of our ongoing gavo-cel Phase 1/2 clinical trial with the identification of a RP2D and submit a protocol amendment with the FDA for the upcoming Phase 2 clinical trial. We also submitted an IND with the FDA for our first enhanced TRuC-T cell that incorporates a PD-1:CD28 switch. In the meantime, we have been identifying new clinical trial sites and expanding manufacturing capacity for the reproducible process used by Miltenyi and ElevateBio to support our clinical trials. In addition to the clinical readouts from gavo-cel and TC-510, we will continue to provide updates on the innovations in our rapidly growing pipeline, most immediately with a preclinical data presentation on our allogeneic TRuC targeting mesothelin at the AACR Annual Meeting in April."

Recent Developments

Gavo-cel:

• TCR² announced the submission of a protocol amendment to the US Food and Drug Administration (FDA) in the first quarter of 2022 for the gavo-cel Phase 2 expansion cohort, including the amendment to treat patients with gavo-cel in combination with Opdivo and/or Yervoy which forms the basis of the Company’s clinical trial collaboration with Bristol Myers Squibb.

TC-510:

• TCR² announced the submission of an Investigational New Drug (IND) to the FDA in the first quarter of 2022 for TC-510, the Company’s first enhanced TRuC-T cell targeting mesothelin with a PD-1:CD28 chimeric switch receptor.

Pipeline:

• TCR² announced it will present a poster at the American Association of Cancer Research (AACR) Annual Meeting 2022 featuring new preclinical data on an allogeneic (off-the-shelf) TRuC-T cell, taking place on April 8-13, 2022 in New Orleans, Louisiana. In preclinical studies, this allogeneic product candidate without an enhancement demonstrated improved anti-tumor efficacy associated with enhanced persistence and increased antigen sensitivity in vivo compared to donor-matched autologous TRuC-T cells targeting mesothelin. Furthermore, allogeneic TRuC-T cells generated with an additional knockout of Beta-2-microglobulin (B2M) maintained their potency.
  
  
• TCR² announced a strategic research collaboration agreement with Arbor Biotechnologies focused on the further development of a defined set of allogeneic TRuC-T cell therapies. The collaboration leverages Arbor's proprietary CRISPR gene-editing technology, which is tailored to address the underlying pathology of genetic diseases and TCR^2's first-in-class TRuC platform, which has demonstrated clinical activity in multiple treatment-refractory mesothelin-expressing solid tumor indications with gavo-cel.

Corporate:

• TCR² announced the appointment of experienced biotech executive Rosemary Harrison, Ph.D., as Chief Business and Strategy Officer where she will be responsible for supporting a range of activities including commercial strategy, operational planning, corporate partnerships and long-term growth opportunities.

Anticipated Milestones

• Gavo-cel:
  
  
  • Present the expanded and complete Phase 1 dataset for gavo-cel in the second quarter of 2022.
    
    
  • Initiate the Phase 2 expansion cohort of the ongoing gavo-cel Phase 1/2 clinical trial in the first half of 2022.
    
    
  • Provide an initial update from at least one of the Phase 2 expansion cohorts of the ongoing gavo-cel Phase 1/2 clinical trial in the second half of 2022.
    
    
• TC-510:
  
  
  • Report initial safety, efficacy and translational data from at least one of the Phase 1 dose escalation cohorts of the TC-510 Phase 1/2 clinical trial in the second half of 2022.
    
    
• Pipeline:
  
  
  • Initiate IND-enabling studies for TC-520, an enhanced CD70 targeting TRuC-T cell program, in 2022.
    
    
  • Select a lead candidate for its allogeneic program in 2022.
    
    
• Manufacturing:
  
  
  • Production of clinical trial material to commence at ElevateBio BaseCamp as capacity is increased in anticipation of demand from the Phase 2 expansion trial of gavo-cel in 2022.

Financial Highlights

• Cash Position: TCR² ended the fourth quarter of 2021 with $265.6 million in cash, cash equivalents, and investments compared to $228.0 million as of December 31, 2020. Net cash used in operations was $23.3 million for the fourth quarter of 2021 compared to $13.5 million for the fourth quarter of 2020. TCR² projects net cash use of $115-125 million for 2022. We expect cash on hand to support operations into 2024.
   
• R&D Expenses: Research and development expenses were $22.4 million for the fourth quarter of 2021 compared to $14.3 million for the fourth quarter of 2020. The research and development expenses for the fourth quarter of 2021 include restructuring costs of $3.7 million and are partially offset by a $2 million settlement from a vendor due to a commercial dispute. The remaining increase in R&D expenses was primarily due to an increase in headcount and manufacturing facilities.
   
• G&A Expenses: General and administrative expenses were $5.2 million for the fourth quarter of 2021 compared to $4.3 million for the fourth quarter of 2020. The increase in general and administrative expenses was primarily due to an increase in personnel costs.
   
• Net Loss: Net loss was $27.7 million for the fourth quarter of 2021 compared to $18.5 million for the fourth quarter of 2020.

About TCR² Therapeutics

TCR² Therapeutics Inc. is a clinical-stage cell therapy company developing a pipeline of novel T cell therapies for cancer patients suffering from solid tumors. The company is focused on the discovery and development of product candidates against novel and complex targets utilizing its proprietary T cell receptor (TCR) Fusion Construct T cells (TRuC^®-T cells). The TRuC platform is designed to specifically recognize and kill cancer cells by harnessing signaling from the entire TCR, independent of human leukocyte antigens (HLA). For more information about TCR², please visit www.tcr2.com.

Forward-looking Statements

This press release contains forward-looking statements and information within the meaning of the Private Securities Litigation Reform Act of 1995 and other federal securities laws. The use of words such as "may," "will," "could," "should," "expects," "intends," "plans," "anticipates," "believes," "estimates," "predicts," "projects," "seeks," "endeavor," "potential," "continue" or the negative of such words or other similar expressions can be used to identify forward-looking statements. These forward-looking statements include, but are not limited to, express or implied statements regarding the therapeutic potential of gavo-cel, TC-510 and the Company’s other product candidates, expected progress and timing of updates for the gavo-cel and TC-510 clinical trials, expectations with respect to the FDA’s review of our gavo-cel protocol amendments, expectations with respect to timing of our IND submission for TC-510, expectations regarding clinical data for gavo-cel and TC-510 and preclinical data for our emerging pipeline and enhancements, increased manufacturing capacity and technical capabilities, including through our manufacturing partnership with ElevateBio, LLC, expectations with respect to increased clinical trial demand and identification of additional clinical trial sites, future IND filings and clinical development plans, expected cash use in 2022 and cash runway into 2024, the development of the Company’s TRuC-T cells, their potential characteristics, applications and clinical utility, and the potential therapeutic applications of the Company’s TRuC-T cell platform.

The expressed or implied forward-looking statements included in this press release are only predictions and are subject to a number of risks, uncertainties and assumptions, including, without limitation: uncertainties inherent in clinical studies and in the availability and timing of data from ongoing clinical studies; whether interim results from a clinical trial will be predictive of the final results of the trial; whether results from preclinical studies or earlier clinical studies will be predictive of the results of future trials; the expected timing of submissions for regulatory approval or review by governmental authorities, including review under accelerated approval processes; orphan drug designation eligibility; regulatory approvals to conduct trials or to market products; TCR²’s ability to maintain sufficient manufacturing capabilities to support its research, development and commercialization efforts, including TCR²’s ability to secure additional manufacturing facilities; whether TCR²'s cash resources will be sufficient to fund TCR²'s foreseeable and unforeseeable operating expenses and capital expenditure requirements, the impact of the COVID-19 pandemic on TCR²’s ongoing operations; and other risks set forth under the caption "Risk Factors" in TCR²’s most recent Annual Report on Form 10-K, most recent Quarterly Report on Form 10-Q and its other filings with the Securities and Exchange Commission. In light of these risks, uncertainties and assumptions, the forward-looking events and circumstances discussed in this press release may not occur and actual results could differ materially and adversely from those anticipated or implied in the forward-looking statements. You should not rely upon forward-looking statements as predictions of future events. Although TCR² believes that the expectations reflected in the forward-looking statements are reasonable, it cannot guarantee that the future results, levels of activity, performance or events and circumstances reflected in the forward-looking statements will be achieved or occur.

Moreover, except as required by law, neither TCR² nor any other person assumes responsibility for the accuracy and completeness of the forward-looking statements included in this press release. Any forward-looking statement included in this press release speaks only as of the date on which it was made. We undertake no obligation to publicly update or revise any forward-looking statement, whether as a result of new information, future events or otherwise, except as required by law.

Investor and Media Contact:

Carl Mauch
Senior Director, Investor Relations and Corporate Communications
(617) 949-5667
carl.mauch@tcr2.com

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