Immuneering Reports Third Quarter 2023 Financial Results and Provides Business Updates

• Dose evaluation portion of IMM-1-104 Phase 1/2a trial approximately two-thirds enrolled; Immuneering’s recommendation for a Phase 2 dose expected in early 2024
• Expanded clinical development plan for IMM-1-104, Phase 2a portion of study now includes 5 arms (3 monotherapy, 2 combination) and additional sites and investigators
• First IMM-1-104 Phase 2a patient expected to be dosed in early 2024, with initial data from multiple arms expected in 2024
• IND for IMM-6-415 on track for filing in Q4 2023

CAMBRIDGE, Mass., Nov. 09, 2023 (GLOBE NEWSWIRE) -- Immuneering Corporation (Nasdaq: IMRX), a clinical-stage oncology company seeking to develop medicines for broad populations of cancer patients with an initial aim to develop a universal-RAS therapy, today reported financial results for the third quarter ended September 30, 2023, and provided business updates.

“We believe that every cancer patient deserves a durable complete response, and that the first step towards this long-term goal is to safely and durably deprive tumors of sustained signaling on the MAPK pathway, cancer’s superhighway,” said Ben Zeskind, Ph.D., Co-founder and Chief Executive Officer of Immuneering. “Completing our Phase 1 dose escalation of IMM-1-104 with no observed dose-limiting toxicities was an important step in that direction. We have made rapid progress in the Phase 1 dose evaluation portion of the study and are preparing to hit the ground running with the expanded Phase 2a development plan we are announcing today.”

“We look forward to assessing IMM-1-104 monotherapy in melanoma and lung cancer. In pancreatic cancer, we plan to assess IMM-1-104 as monotherapy in a first- or second-line setting, and as combination therapy in a first-line setting with chemotherapy, for which we shared promising preclinical data at the AACR-NCI-EORTC Conference last month. The Phase 2a portion of the study will also include the addition of new sites and investigators focused on these cancer types. We expect to announce initial Phase 2a data from multiple arms in 2024. We believe the important progress we have made in the third quarter of 2023, and are continuing to make on both IMM-1-104 and IMM-6-415, lays a strong foundation for the year ahead.”

Corporate Highlights

• Continued progress on Phase 1 portion of the Phase 1/2a trial for IMM-1-104
  • Approximately two thirds of planned patients (20 per arm) now enrolled in the Phase 1 dose evaluation portion of the Phase 1/2a trial, comparing 240mg and 320mg of IMM-1-104 as monotherapy, with no dose limiting toxicities having been observed in the Phase 1 dose escalation portion of the study completed in June 2023.
  • The Company’s recommendation for a Phase 2 dose, based on safety, tolerability, PK/PD, circulating tumor DNA, and initial activity readouts from the Phase 1 portion of the study, expected to be shared in early 2024.
• Expanded clinical development plan for IMM-1-104
  • Immuneering is expanding its clinical development plan for the Phase 1/2a study of IMM-1-104 to include 5 arms and additional clinical sites and investigators.
  • Phase 2a portion of the trial is now expected to evaluate IMM-1-104 as a single-agent in approximately 90 patients across three arms:
    • IMM-1-104 monotherapy in patients with pancreatic ductal adenocarcinoma (PDAC) in the first- or second-line setting (n=30).
    • IMM-1-104 monotherapy in RAS-mutant melanoma in the second- or third-line setting after patients have received immunotherapy (n=30), or in the first-line setting for patients who are not candidates for existing therapies.
    • IMM-1-104 monotherapy in RAS-mutant non-small cell lung cancer (NSCLC) in the second- or third-line setting (n=30).
  • The Phase 1b/2a combination portion of the trial is expected to include approximately 60 PDAC patients in the first-line setting across two arms:
    • IMM-1-104 in combination with mFOLFIRINOX (n=30).
    • IMM-1-104 in combination with modified gemcitabine/nab-paclitaxel (n=30).
  • First patient in the Phase 2a portion of the study expected to be dosed in early 2024, with initial data from multiple arms expected in 2024.
• Presented preclinical data demonstrating encouraging anti-tumor activity for IMM-1-104 and IMM-6-415 at AACR-NCI-EORTC conference held in October 2023
  • Expanded benchmarking of IMM-1-104 as a single agent across 193 patient-aligned models in humanized 3D-tumor growth assays demonstrated high sensitivity in a wide range of MAPK-driven tumors, including melanoma, pancreatic cancer and lung cancer.
  • IMM-1-104 in combination with gemcitabine or paclitaxel drove enhanced anti-tumor activity in humanized 3D-tumor growth assays across multiple pancreatic cancer models.
  • Benchmarking of IMM-6-415 as a single agent across more than 60 patient-aligned models in humanized 3D-tumor growth assays demonstrated high sensitivity in a wide range of MAPK-driven tumors, including models of RAS and RAF mutant disease.
  • IMM-6-415 in combination with encorafenib drove deeper regressions and superior durability compared to binimetinib plus encorafenib in a head-to-head study in animal models of RAF mutant melanoma and colorectal cancer.
• Advanced IMM-6-415 with planned IND on track for filing in Q4 2023
  • Phase 1/2a study planned to include both RAS and RAF mutant disease.

Near-Term Milestone Expectations

IMM-1-104

• The Company’s recommendation for a Phase 2 dose, based on safety, tolerability, PK/PD, circulating tumor DNA, and initial activity readouts from the Phase 1 portion of the study, expected to be shared in early 2024.
• First Phase 2a patient expected to be dosed in early 2024, with initial data from multiple arms expected in 2024.
• Additional trial updates expected on a periodic basis.

IMM-6-415

• IND filing expected in the fourth quarter of 2023.

Third Quarter 2023 Financial Highlights

• Cash Position: Cash, cash equivalents and marketable securities as of September 30, 2023 were $97.2 million, compared with $105.5 million as of December 31, 2022.
• Research and Development (R&D) Expenses: R&D expenses for the quarter ended September 30, 2023 were $10.1 million, compared with $9.4 million for the quarter ended September 30, 2022. The increase in R&D expenses was primarily attributable to higher clinical costs related to the company’s lead program.
• General and Administrative (G&A) Expenses: G&A expenses for the quarter ended September 30, 2023 were $3.9 million, compared with $3.8 million for the quarter ended September 30, 2022. The increase in G&A expenses was primarily attributable to an increase in headcount to support the company’s business operations which was partially offset by a decrease in professional services fees.
• Net Loss: Net loss attributable to common stockholders was $12.6 million, or $0.43 per share, for the quarter ended September 30, 2023, compared to $12.8 million, or $0.49 per share, for the quarter ended September 30, 2022.

2023 Financial Guidance

Based on cash, cash equivalents and marketable securities as of September 30, 2023, and current operating plans, the company expects its cash runway to extend into 2025.

About Immuneering Corporation

Immuneering is a clinical-stage oncology company seeking to develop potential medicines for broad populations of cancer patients with an initial aim to develop a universal-RAS therapy. The Company aims to achieve universal activity through deep cyclic inhibition of the MAPK pathway, impacting cancer cells while sparing healthy cells. Immuneering’s lead product candidate, IMM-1-104, is in a Phase 1/2a study in patients with advanced solid tumors harboring RAS mutations. The company’s development pipeline also includes IMM-6-415, a universal-MAPK program, as well as several early-stage programs. For more information, please visit www.immuneering.com.

Forward-Looking Statements

This press release contains forward-looking statements, including within the meaning of the Private Securities Litigation Reform Act of 1995. All statements contained in this press release that do not relate to matters of historical fact should be considered forward-looking statements, including without limitation statements concerning: the expected design, timing, enrollment and advancement of, and data results from, preclinical studies and clinical trials involving our product candidates; the potential of our product candidates to be used as monotherapies and / or in combination with other therapeutic agents, including to treat RAS or RAF mutant diseases; and the clinical development of IMM-1-104 and anticipated filing of an IND for IMM-6-415.

These forward-looking statements are based on management’s current expectations. These statements are neither promises nor guarantees, but involve known and unknown risks, uncertainties and other important factors that may cause our actual results, performance or achievements to be materially different from any future results, performance or achievements expressed or implied by the forward-looking statements, including, but not limited to, the following: the risks inherent in oncology drug research and development, including target discovery, target validation, lead compound identification, and lead compound optimization; we have incurred significant losses, are not currently profitable and may never become profitable; our projected cash runway; our need for additional funding; our unproven approach to therapeutic intervention; our ability to address regulatory questions and the uncertainties relating to regulatory filings, reviews and approvals; the lengthy, expensive, and uncertain process of clinical drug development, including potential delays in or failure to obtain regulatory approvals; our reliance on third parties and collaborators to conduct our clinical trials, manufacture our product candidates, and develop and commercialize our product candidates, if approved; failure to compete successfully against other drug companies; protection of our proprietary technology and the confidentiality of our trade secrets; potential lawsuits for, or claims of, infringement of third-party intellectual property or challenges to the ownership of our intellectual property; our patents being found invalid or unenforceable; costs and resources of operating as a public company; and unfavorable or no analyst research or reports.

These and other important factors discussed under the caption “Risk Factors” in our Quarterly Report on Form 10-Q for the quarterly period ended September 30, 2023, and our other reports filed with the United States Securities and Exchange Commission, could cause actual results to differ materially from those indicated by the forward-looking statements made in this press release. Any such forward-looking statements represent management’s estimates as of the date of this press release. While we may elect to update such forward-looking statements at some point in the future, except as required by law, we disclaim any obligation to do so, even if subsequent events cause our views to change. These forward-looking statements should not be relied upon as representing our views as of any date subsequent to the date of this press release.

Media Contact:
Gina Nugent
Nugent Communications
617-460-3579
gina@nugentcommunications.com

Investor Contacts:
Laurence Watts
Gilmartin Group
619-916-7620
laurence@gilmartinir.com
or

Kiki Patel, PharmD
Gilmartin Group
332-895-3225
kiki@gilmartinir.com

The accompanying notes are an integral part of these condensed consolidated financial statements.