

- For patients with second-line (2L) metastatic pancreatic cancer, today's FDA approval of a new treatment is an important milestone – - For patients with first-line (1L) metastatic pancreatic cancer, Immuneering's atebimetinib is being evaluated in a global randomized Phase 3 trial, MAPKeeper 301 – - 17.3-month median overall survival previously reported from Immuneering's Phase 2a study of atebimetinib plus modified gemcitabine/nab-paclitaxel (mGnP) in 1L pancreatic cancer - - In the same Phase 2a study, the only Grade 3+ treatment-related adverse events in ≥10% of patients were anemia (16%) and neutropenia (18%), both chemotherapy-related - NEW YORK, Aug. 26, 2026 (GLOBE NEWSWIRE) -- Immuneering Corporation (Nasdaq: IMRX), a late-stage clinical oncology company focused on keeping cancer patients alive and helping them thrive, today shared comments following the recent FDA approval of a new second-line pancreatic cancer treatment. “Approval of this new treatment is good news for the subset of pancreatic cancer patients who have received at least one prior systemic therapy or who are not candidates for multiagent systemic therapy,” said Ben Zeskind, Ph.D.

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- 17.3 month median overall survival in 55 first-line pancreatic cancer patients treated with atebimetinib in combination with chemotherapy, reported in oral presentation at ASCO Annual Meeting on June 1 - - Phase 3 MAPKeeper 301 trial is underway, with patients being dosed and over 30 study locations posted to date - - Peer-reviewed publication in Cancer Research details atebimetinib's broad, durable preclinical activity, and favorable tolerability across RAS- and RAF-mutant tumors, along with preservation of body mass - - Ended Q2 2026 with $182.7 million in cash, cash equivalents and marketable securities with anticipated runway into 2029 - NEW YORK, Aug. 05, 2026 (GLOBE NEWSWIRE) -- Immuneering Corporation (Nasdaq: IMRX), a late-stage clinical oncology company focused on keeping cancer patients alive and helping them thrive, today reported financial results for the second quarter ended June 30, 2026, and provided business updates. “At a time when first-line pancreatic cancer patients finally have treatment options, the 17.3 month median overall survival reported at ASCO for atebimetinib in combination with modified gemcitabine/nab-paclitaxel (mGnP) in our single-arm Phase 2a study stands out as potentially best-in-class.

Immuneering Corporation targets first-line pancreatic cancer with atebimetinib, showing promising Phase 2a results versus standard-of-care regimens. IMRX's pivotal Phase 3 trial in first-line PDAC is recruiting, with first patient dosing expected mid-2026 and cash runway projected into 2029. Atebimetinib demonstrated median overall survival of 17.3 months, outperforming historical controls and comparing favorably to competitors' data.

- Atebimetinib showed broad antitumor activity across KRAS-, NRAS-, and BRAF-mutant models, including colorectal, lung, and melanoma, by resisting the RAF-mediated bypass signaling that has constrained other MEK inhibitors -

NEW YORK, July 17, 2026 (GLOBE NEWSWIRE) -- Immuneering Corporation (Nasdaq: IMRX), a late-stage clinical oncology company focused on keeping cancer patients alive and helping them thrive, previously announced on June 15, 2026, that Andrew Gengos was named Chief Financial Officer of the Company, effective as of July 16, 2026 (the "Start Date").

NEW YORK, July 17, 2026 (GLOBE NEWSWIRE) -- Immuneering Corporation (Nasdaq: IMRX), a late-stage clinical oncology company focused on keeping cancer patients alive and helping them thrive, previously announced on June 15, 2026, that Andrew Gengos was named Chief Financial Officer of the Company, effective as of July 16, 2026 (the “Start Date”). In connection with the commencement of Mr.

Immuneering (IMRX) might move higher on growing optimism about its earnings prospects, which is reflected by its upgrade to a Zacks Rank #2 (Buy).