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Monte Rosa Therapeutics Announces Second Quarter 2023 Financial Results and Provides Corporate Update

  • On track to present initial data from Phase 1/2 clinical trial of MRT-2359 for MYC-driven solid tumors in the second half of 2023
  • Received Orphan Drug Designation from the U.S. Food and Drug Administration (FDA) for MRT-2359 for the treatment of small cell lung cancer (SCLC)
  • Announced development candidate MRT-6160, a novel, highly selective molecular glue degrader of VAV1, with IND submission expected 1H 2024
  • Strong cash position expected to sustain operations into 2025 and enable advancement of pipeline of novel molecular glue degraders

BOSTON, Aug. 10, 2023 (GLOBE NEWSWIRE) -- Monte Rosa Therapeutics, Inc. (Nasdaq: GLUE), a clinical-stage biotechnology company developing novel molecular glue degrader (MGD)-based medicines, today reported business highlights and financial results for the quarter ended June 30, 2023.

"During the second quarter, we continued focusing on advancing our clinical and preclinical portfolios, marking significant milestones, including the nomination of MRT-6160 as the development candidate for our VAV1 program. MRT-6160 is a potent, highly selective and orally bioavailable VAV1-targeting MGD. By selectively degrading VAV1, a protein pivotal to T and B cell signaling, MRT-6160 is designed to help patients with a range of severe autoimmune conditions. We expect to file an IND application for MRT-6160 in the first half of 2024," said Markus Warmuth, M.D., CEO of Monte Rosa Therapeutics. "Moreover, the Phase 1/2 trial of MRT-2359, our GSPT1-directed MGD, in MYC-driven solid tumors is enrolling well and we anticipate sharing initial clinical data this year. Our strong cash reserve supports further development of our groundbreaking pipeline of investigational MGD-based medicines and the discovery of additional MGD development candidates through our innovative QuEEN™ discovery engine."

In addition, this morning, Monte Rosa announced the resignation of Ajim Tamboli, CFA, who has served as the Company’s Chief Financial Officer (CFO). “Ajim was an instrumental part of Monte Rosa’s path to and through its initial public offering (IPO) and of the Company’s leadership team. We thank him for his service to the Company and wish him all the best in his future endeavors,” said Dr. Warmuth.


  • Announced development candidate MRT-6160, a VAV1-directed MGD, for the treatment of autoimmune diseases
  • Received Orphan Drug Designation from the U.S. Food and Drug Administration (FDA) for MRT-2359 for the treatment of small cell lung cancer (SCLC)
  • Presented preclinical data highlighting the preferential activity of MRT-2359, an orally bioavailable GSPT1-directed MGD, in MYC-driven solid tumors at the 2023 American Association for Cancer Research (AACR) Annual Meeting


  • On track to present initial Phase 1/2 clinical data for MRT-2359 in MYC-driven solid tumors, including pharmacokinetics (PK), pharmacodynamics (PD), safety, and available initial efficacy data, in the second half of 2023
  • On track for planned IND submission for MRT-6160 in the first half of 2024
  • On track to nominate development candidates for one or more additional preclinical programs in the second half of 2023


Research and Development (R&D) Expenses: R&D expenses for the second quarter of 2023 were $29.1 million, compared to $20.9 million for the second quarter of 2022. These increases were driven by the successful achievement of key milestones in our R&D organization, including the advancement of MRT-2359 in the clinic, the progression of our preclinical pipeline, and the continued development of the Company’s QuEEN™ platform for discovery efforts. The increase in R&D expenses was driven by increased headcount and laboratory-related expenses to achieve these milestones. Non-cash stock-based compensation constituted $2.3 million of R&D expenses for Q2 2023, compared to $1.4 million in the same period in 2022.

General and Administrative (G&A) Expenses: G&A expenses for the second quarter of 2023 were $8.1 million compared to $6.3 million for the second quarter of 2022. The increase in G&A expenses was a result of increased headcount and expenses in support of the company’s growth and operations. G&A expenses included non-cash stock-based compensation of $1.9 million for the second quarter of 2023, compared to $1.4 million for the same period in 2022.

Net Loss: Net loss for the second quarter of 2023 was $35.2 million, compared to $26.5 million for the second quarter of 2022.

Cash Position and Financial Guidance: Cash, cash equivalents, restricted cash, and marketable securities as of June 30, 2023, were $207.6 million, compared to cash, cash equivalents, restricted cash, and marketable securities of $237.0 million as of March 31, 2023. The decrease of $29.4 million was primarily related to cash used to fund operations. The company expects its cash and cash equivalents will be sufficient to fund planned operations and capital expenditures into 2025.

About MRT-2359
MRT-2359 is a potent, selective and orally bioavailable investigational molecular glue degrader (MGD) that induces the interaction between the E3 ubiquitin ligase component cereblon and the translation termination factor GSPT1, leading to the targeted degradation of GSPT1 protein. The MYC transcription factors (c‑MYC, L-MYC and N-MYC) are well-established drivers of human cancers that maintain high levels of protein translation, which is critical for uncontrolled cell proliferation and tumor growth. Preclinical studies have shown this addiction to MYC-induced protein translation creates a dependency on GSPT1. By inducing degradation of GSPT1, MRT-2359 is designed to exploit this vulnerability, disrupting the protein synthesis machinery, leading to anti-tumor activity in MYC-driven tumors.

About MRT-6160
MRT-6160 is a potent, highly selective, and orally bioavailable investigational degrader of VAV1, which in our in vitro studies has shown deep degradation of its target with no detectable effects on other proteins. VAV1, a Rho-family guanine nucleotide exchange factor, is a key signaling protein downstream of both the T-and B-cell receptors. VAV1 expression is restricted to blood and immune cells, including T and B cells. Preclinical studies have shown that targeted degradation of VAV1 protein via an MGD modulates both T- and B-cell receptor-mediated activity. This modulation is evident both in vitro and in vivo, demonstrated by a significant decrease in cytokine secretion, proteins vital for maintaining autoimmune diseases. Moreover, VAV1-directed MGDs have shown promising activity in preclinical models of autoimmune diseases and thus have the potential to provide therapeutic benefits in multiple autoimmune indications, such as multiple sclerosis, rheumatoid arthritis, and dermatological disorders. Preclinical studies demonstrate MRT-6160 inhibits disease progression in in vivo autoimmunity models.

About Monte Rosa
Monte Rosa Therapeutics is a biotechnology company developing novel molecular glue degrader (MGD) medicines for patients living with serious diseases such as oncology, autoimmune and inflammatory diseases. The Company’s lead program, MRT-2359, is being developed in a Phase 1/2 study in MYC-driven tumors, including non-small cell lung cancer and small-cell lung cancer. MGDs are small molecule protein degraders designed to employ the body’s natural mechanisms to eliminate therapeutically relevant proteins selectively. The Company’s QuEEN™ (Quantitative and Engineered Elimination of Neosubstrates) platform enables it to rapidly identify protein targets and design highly selective degraders by combining diverse libraries of proprietary MGDs with in-house proteomics, structural biology, A.I./machine learning, and computational chemistry capabilities. For more information, visit

Forward-Looking Statements
This communication includes express and implied “forward-looking statements,” including forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements include all statements that are not historical facts and in some cases, can be identified by terms such as “may,” “might,” “will,” “could,” “would,” “should,” “expect,” “intend,” “plan,” “objective,” “anticipate,” “believe,” “estimate,” “predict,” “potential,” “continue,” “ongoing,” or the negative of these terms, or other comparable terminology intended to identify statements about the future. Forward-looking statements contained herein include, but are not limited to, statements about our product development activities, our ongoing clinical development of our GSPT1 degrader referred to as MRT-2359, including our expectations for the nature, significance, and timing for our disclosure of any initial data from our Phase 1/2 clinical trial of MRT-2359 in MYC-driven solid tumors, statements about the advancement of our preclinical programs, pipeline and the various products therein, including the ongoing development of our VAV1-directed degrader, referred to as MRT-6160, and the planned submission of an IND to the FDA for MRT-6160 in the first half of 2024, our expectations regarding the potential clinical benefit for this program and our expectations of timings for the program, statements around the advancement and application of our pipeline and platform, and statements concerning our expectations regarding our ability to nominate and the timing of our nominations of additional targets, product candidates, and development candidates, as well as our expectations of success for our programs and the strength of our financial position, among others. By their nature, these statements are subject to numerous risks and uncertainties, including those risks and uncertainties set forth in our most recent Annual Report on Form 10-K for the year ended December 31, 2023, filed with the U.S. Securities and Exchange Commission on March 16, 2023, and any subsequent filings, that could cause actual results, performance or achievement to differ materially and adversely from those anticipated or implied in the statements. You should not rely upon forward-looking statements as predictions of future events. Although our management believes that the expectations reflected in our statements are reasonable, we cannot guarantee that the future results, performance, or events and circumstances described in the forward-looking statements will be achieved or occur. Recipients are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date such statements are made and should not be construed as statements of fact. We undertake no obligation to publicly update any forward-looking statements, whether as a result of new information, any future presentations, or otherwise, except as required by applicable law. Certain information contained in these materials and any statements made orally during any presentation of these materials that relate to the materials or are based on studies, publications, surveys and other data obtained from third-party sources and our own internal estimates and research. While we believe these third-party studies, publications, surveys and other data to be reliable as of the date of these materials, we have not independently verified, and make no representations as to the adequacy, fairness, accuracy or completeness of, any information obtained from third-party sources. In addition, no independent source has evaluated the reasonableness or accuracy of our internal estimates or research and no reliance should be made on any information or statements made in these materials relating to or based on such internal estimates and research.

Consolidated Balance Sheets
(in thousands, except share amounts)
  June 30,December 31, 
  2023  2022 
Current assets:      
Cash and cash equivalents $47,027  $54,912 
Marketable securities  156,039   207,914 
Other receivables  1,154   7,656 
Prepaid expenses and other current assets  3,884   4,444 
Current restricted cash     960 
Total current assets  208,104   275,886 
Property and equipment, net  35,335   27,075 
Operating lease right-of-use assets  30,359   34,832 
Restricted cash, net of current  4,527   4,318 
Other long-term assets  291   278 
Total assets $278,616  $342,389 
Liabilities and stockholders’ equity      
Current liabilities:      
Accounts payable $5,308  $7,862 
Accrued expenses and other current liabilities  11,114   14,580 
Current portion of operating lease liability  2,667   3,127 
Total current liabilities  19,089   25,569 
Defined benefit plan liability  1,505   1,533 
Operating lease liability  44,368   43,874 
Total liabilities  64,962   70,976 
Commitments and contingencies      
Stockholders’ equity      
Common stock  5   5 
Additional paid-in capital  513,041   503,696 
Accumulated other comprehensive loss  (1,640)  (1,752)
Accumulated deficit  (297,752)  (230,536)
Total stockholders’ equity  213,654   271,413 
Total liabilities and stockholders’ equity $278,616  $342,389 

Consolidated Statements of Operations and Comprehensive Income (Loss)
(In thousands, except share and per share amounts)
  Three months ended
June 30,
  Six months ended
June 30,
  2023  2022  2023  2022 
Operating expenses:            
Research and development $29,076  $20,936  $55,831  $38,851 
General and administrative  8,145   6,295   15,649   12,682 
Total operating expenses  37,221   27,231   71,480   51,533 
Loss from operations  (37,221)  (27,231)  (71,480)  (51,533)
Other income:            
Interest income, net  2,302   628   4,739   777 
Foreign currency exchange gain (loss), net  (93)  134   (178)  230 
Gain on disposal of fixed assets  24      24   125 
Loss on sale of marketable securities        (131)   
Total other income  2,233   762   4,454   1,132 
Net loss before income taxes  (34,988)  (26,469)  (67,026)  (50,401)
Provision for income taxes  (190)     (190)   
Net loss $(35,178) $(26,469) $(67,216) $(50,401)
Net loss per share attributable to common stockholders—basic and diluted $(0.71) $(0.57) $(1.36) $(1.08)
Weighted-average number of shares outstanding used in computing
net loss per common share—basic and diluted
  49,431,922   46,668,369   49,389,931   46,632,279 
Net loss $(35,178) $(26,469) $(67,216) $(50,401)
Other comprehensive income (loss):            
Provision for pension benefit obligation  14   33   28   67 
Unrealized gain (loss) on available-for-sale securities  (261)  (358)  84   (504)
Comprehensive loss $(35,425) $(26,794) $(67,104) $(50,838)


Shai Biran, Monte Rosa Therapeutics

Cori Tromblee, Scient PR

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