On August 13, 2025 Immuneering Corporation (Nasdaq: IMRX), a clinical-stage oncology company outpacing cancer to help patients outlive their disease, reported financial results for the second quarter ended June 30, 2025, and provided several business updates (Press release, Immuneering, AUG 13, 2025, View Source [SID1234655196]).
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"We are excited to announce updated OS and PFS data from our ongoing Phase 2a trial of atebimetinib in combination with mGnP in first-line pancreatic cancer patients in the coming weeks. Last quarter we reported an exceptional 94% OS observed at 6 months in first-line pancreatic cancer patients treated with atebimetinib in combination with mGnP. To put that in perspective, in the pivotal study of standard of care GnP, the 6-month OS was only 67%, and dropped rapidly to only 50% by 8.5 months," said Ben Zeskind, Ph.D., Co-founder and Chief Executive Officer of Immuneering. "Our exceptional 6-month overall survival data in first-line pancreatic cancer patients is generating strong interest from leading pharmaceutical companies and top-tier investors, and we look forward to sharing the latest results."
"We are busy preparing for our Phase 3 pivotal trial, and have now submitted our end of phase 2 meeting request to FDA. In addition, the granting of our composition of matter patent for atebimetinib by the United States Patent and Trademark Office (USPTO) was an important milestone for our company. We expect the long patent runway we are forging for atebimetinib will support our efforts to maximize its therapeutic potential across multiple indications," Zeskind concluded.
Corporate Highlights
Reported Positive Overall Survival Data for Atebimetinib from Ongoing Phase 2a Trial in First-Line Pancreatic Cancer Patients: In June, Immuneering shared exceptional data from its ongoing Phase 2a trial of atebimetinib in combination with modified mGnP in first-line pancreatic cancer. The company reported that 94% OS and 72% PFS were observed at 6 months (n=34; patients treated at the 320 mg once-daily dose of atebimetinib), with median OS and PFS not yet reached. A markedly favorable tolerability profile was also observed. All results were reported using a data cutoff date of May 26, 2025. Subject to regulatory feedback, the company plans to initiate a pivotal trial of atebimetinib in combination with mGnP in first-line pancreatic cancer patients in 2026.
Granted U.S. Composition of Matter Patent for Atebimetinib: In July, the company was granted a composition of matter patent for atebimetinib by the USPTO, which is expected to provide exclusivity into 2042, with subsequent opportunity for patent term extension. The patent is the first granted in the U.S. for a deep cyclic inhibitor, a once-daily pill that aims to drive longer-lasting benefit by outpacing resistance mechanisms that cause cancer drugs to stop working. Additional patent applications for atebimetinib are pending, directed to compounds, pharmaceutical compositions, and methods of use, with expiration expected into 2044.
Third-Line Pancreatic Cancer Patient Passes 18-month Mark on Atebimetinib Monotherapy: Today, Immuneering is providing an update on a pancreatic cancer patient in the third-line setting who has received atebimetinib monotherapy for more than 18 months as a participant in the company’s Phase 1 trial and who remains on treatment. The patient – who previously experienced disease progression on first-line FOLFIRINOX and second-line Gem/Cis/nab-Pac – has been on atebimetinib monotherapy at 240 mg once daily and has maintained a partial response, including a 34% reduction in target lesions (RECIST sum of longest diameters) for a confirmed partial response, and a 96% reduction in peak CA 19-9 levels. Treatment continued to be well tolerated by the patient, with a ~16% weight gain observed.
Near-Term Milestone Expectations
Immuneering is planning for several near-term milestones related to atebimetinib, including to:
Announce updated OS and PFS data from first-line pancreatic cancer patients (n = 34) treated with atebimetinib + mGnP in Q3 2025
Receive regulatory feedback on pivotal study plans in Q4 2025
Initiate pivotal, randomized trial of atebimetinib in combination with mGnP in first-line pancreatic cancer in 2026
Initiate additional atebimetinib clinical trial combination arms in 2026
Second Quarter 2025 Financial Highlights
Cash Position: Cash and cash equivalents as of June 30, 2025 were $26.4 million, compared with $36.1 million as of December 31, 2024.
Research and Development (R&D) Expenses: R&D expenses for the quarter ended June 30, 2025 were $10.5 million, compared with $10.7 million for the quarter ended June 30, 2024. The decrease in R&D expenses was primarily attributable to decreases in spend for preclinical programs, decreases in clinical spend related to the IMM-6-415 program and decreases in personnel costs to support ongoing research and development activities, offset by higher clinical costs related to the Company’s lead atebimetinib program.
General and Administrative (G&A) Expenses: G&A expenses for the quarter ended June 30, 2025 were $4.3 million, compared with $4.3 million for the quarter ended June 30, 2024. The second quarter of 2025 costs were consistent with the comparable prior period.
Net Loss: Net loss attributable to common stockholders was $14.4 million, or $0.40 per share, for the quarter ended June 30, 2025, compared to $14.1 million, or $0.47 per share, for the quarter ended June 30, 2024.
2025 Financial Guidance
Based on cash and cash equivalents as of June 30, 2025, and current operating plans, the Company expects its cash runway to be sufficient to fund operations into 2026.