On March 16, 2023 Monte Rosa Therapeutics, Inc. (NASDAQ: GLUE), a clinical stage biotechnology company developing novel molecular glue degrader (MGD)-based medicines, reported financial results for the fourth quarter and full year ended December 31, 2022, and provided corporate updates (Press release, Monte Rosa Therapeutics, MAR 16, 2023, View Source [SID1234628905]).
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"Last year was transformational for Monte Rosa, as we initiated a Phase 1/2 clinical trial with MRT-2359 for the treatment of MYC-driven solid tumors, and advanced our VAV1 program into lead optimization. We have now shown repeatedly that our QuEEN platform has the ability to generate selective molecular glue degraders for therapeutically relevant protein targets, and our pipeline of unique and differentiated MGDs serves as strong validation of QuEEN," said Markus Warmuth, M.D., CEO of Monte Rosa. "We look forward to presenting the first clinical data for MRT-2359 later this year, as well as nominating multiple development candidates from our pipeline programs. Backed by a strong cash runway, we are well positioned to continue showcasing the unique capabilities of our drug discovery engine and developing new treatment options for patients with serious diseases of high unmet medical need."
Monte Rosa’s current programs are focused on delivering therapies to targets generally considered undruggable or inadequately drugged in well-characterized biological pathways across clinical indications in oncology, inflammation, immunology, and other diseases with high unmet needs. The Company’s lead program, MRT-2359, is in Phase 1/2 clinical trials. Additional programs focused on the degradation of CDK2 for oncology, VAV1 for autoimmunity and NEK7 for inflammation are at the lead optimization stage, with multiple development candidates expected to be announced in 2023. Further discovery programs are focused on sickle cell disease-related proteins, as well as multiple currently undisclosed targets.
Business Highlights and Recent Developments
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Initiated patient dosing in October of its Phase 1/2 clinical trial evaluating MRT-2359 for the treatment of MYC-driven solid tumors, including lung cancer. MRT-2359 is a potent, selective, and orally bioavailable GSPT1-directed MGD, designed to disrupt protein synthesis in MYC-driven tumors and lead to anti-tumor activity. The Phase 1/2 open-label, multicenter study will primarily assess the safety, tolerability, pharmacokinetic (PK), pharmacodynamic (PD) and preliminary clinical activity of MRT-2359 in patients with previously treated selected solid tumors, including non-small cell lung cancer (NSCLC), small cell lung cancer (SCLC), high-grade neuroendocrine cancer of any primary site, diffuse large B-cell lymphoma (DLBCL) and solid tumors with L-MYC or N-MYC amplification. In the Phase 1 portion of the study, patients are receiving escalating doses of MRT-2359 to determine the maximum tolerated dose (MTD) and recommended Phase 2 dose (RP2D). Once the RP2D is determined, the anti-tumor activity of MRT-2359 will be assessed as part of the
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Phase 2 portion of the study, which includes molecular biomarkers for patient stratification and selection.
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U.S. Food and Drug Administration (FDA) granted Fast Track designation to MRT-2359 in January for the treatment of patients with previously treated, metastatic NSCLC with L-MYC or N-MYC expression. Fast Track designation is designed to facilitate the development and expedite the review of drug candidates to treat serious conditions and fulfill an unmet medical need. Clinical programs with Fast Track designation may be eligible for more frequent interactions with the FDA throughout the regulatory review process and may be eligible for Accelerated Approval and Priority Review if relevant criteria are met.
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Advanced immunology-focused VAV1 degrader program into Lead Optimization. VAV1 is a pivotal signal transduction protein in the adaptive immune system. When activated, VAV1 relays a signal cascade that results in immune cell activation and the secretion of several pro-inflammatory cytokines. Prior to Monte Rosa’s research, VAV1 had been considered undruggable. Through analysis and screening by QuEEN, the Company developed highly potent and selective degraders that have been observed to induce rapid and deep VAV1 degradation, elicit expected on-target downstream functional effects and compelling in vivo activity. VAV1 has rapidly advanced into Lead Optimization and is one of three programs that may advance to IND-enabling studies in 2023.
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Strengthened executive leadership team with the promotion of Jennifer Champoux to Chief People & Operations Officer and the appointment of Magnus Walter, Ph.D., to Senior Vice President, Chemical Sciences and Process Development
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Presented at recent scientific and medical conferences including:
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5th Annual Targeted Protein Degradation Summit in Boston, October 25-28, 2022
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34th EORTC-NCI-AACR (Free EORTC-NCI-AACR Whitepaper) Symposium on Molecular Targets and Cancer Therapeutics in Barcelona, October 26-28, 2022
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Molecular Glue Drug Development Summit in Boston, January 25, 2023
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4th Swiss Industrial Chemistry Symposium in Basel, January 27, 2023
2023 Objectives and Upcoming Milestones
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Disclosure of initial clinical data including PK, PD, safety and available initial efficacy data from the Phase 1 arm of the ongoing Phase 1/2 clinical trial evaluating MRT-2359 is expected in the second half of 2023
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Nomination of multiple development candidates from Lead Optimization programs in immunology, inflammation and/or oncology and initiation of IND-enabling studies in 2023
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Disclosure of multiple new discovery programs
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Expand molecular glue degrader platform beyond CRBN
Upcoming Data Presentations
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Additional preclinical data from the MRT-2359 program will be presented at the upcoming American Association for Cancer Research (AACR) (Free AACR Whitepaper) Annual Meeting, April 14-19, 2023, in Orlando, FL; presentation details, as follows:
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Oral Presentation
Title: New Drugs on the Horizon – Discovery of MRT-2359, an orally bioavailable GSPT1 molecular glue degrader, for MYC-driven cancers
Session: New Drugs on the Horizon: Part 3
Presenter: Owen Wallace, Ph.D., Chief Scientific Officer of Monte Rosa
Date and Time: Monday, April 17; 10:15 – 11:45 a.m. ET
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Oral Presentation
Title: Development of MRT-2359, an orally bioavailable GSPT1 molecular glue degrader, for the treatment of lung cancers with MYC-induced translational addiction
Session: Mini Symposium
Abstract: 3449
Presenter: Gerald Gavory, Ph.D., Senior Director of Drug Discovery and Translational Research at Monte Rosa
Date and Time: Monday, April 17; 2:30 – 4:30 p.m. ET
FOURTH QUARTER AND FULL YEAR 2022 FINANCIAL RESULTS
Research and Development (R&D) Expenses: R&D expenses for the fourth quarter of 2022 were $24.9 million compared to $18.1 million for the fourth quarter of 2021, and $85.1 million for the year ended December 31, 2022, compared to $57.2 million for the year ended December 31, 2021. The increase in R&D expense was primarily due to the expansion of research and development activities, including the advancement of MRT-2359 into the clinic, pipeline advancement of the VAV1, NEK7 and CDK2 programs, increased headcount and facilities in the United States and Switzerland, and corresponding increases in laboratory-related expenses. R&D expense included non-cash lease expense and non-cash stock compensation expense of $1.6 million and $1.8 million, respectively, for the quarter ended December 31, 2022, and $4.8 million and $6.1 million for the year ended December 31, 2022, respectively. Non-cash stock compensation expense was $1.0 million and $2.6 million for the same periods in 2021
General and Administrative (G&A) Expenses: G&A expenses for the fourth quarter of 2022 were $7.6 million compared to $5.3 million for the fourth quarter of 2021, and $27.3 million for the year ended December 31, 2022, compared to $15.7 million for the year ended December 31, 2021. The increase in G&A expenses were a result of increased headcount and expenses in support of the company’s growth and operations as a public company. G&A expenses included non-cash stock-based compensation of $1.6 million for the fourth quarter of 2022 and $5.6 million for the year ended December 31, 2022, compared to $1.0 million and $2.6 million, respectively, for the same periods in 2021.
Net Loss: Net loss for the fourth quarter of 2022 was $30.8 million compared to $23.4 million for the fourth quarter of 2021, and $108.5 million for the year ended December 31, 2022, compared to $74.0 million for the year ended December 31, 2021.
Cash Position and Financial Guidance: Cash, cash equivalents, restricted cash, and marketable securities as of December 31, 2022, were $268.1 million, compared to $351.4 million as of December 31, 2021. The company expects its cash, cash equivalents, restricted cash and marketable securities will be sufficient to fund planned operations and capital expenditures into 2025.