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Immuneering Announces First Patient Dosed in Pivotal Phase 3 MAPKeeper 301 Trial of Atebimetinib + mGnP in First-Line Pancreatic Cancer

$IMRXPress releaseJun 11, 2026, 7:30 AM ETRead the release

Immuneering has dosed the first patient in MAPKeeper 301, a pivotal Phase 3 trial evaluating atebimetinib plus modified gemcitabine/nab-paclitaxel in first-line metastatic pancreatic cancer. The global, randomized study compares the combination therapy against standard GnP alone, with overall survival as the primary endpoint.

Key figures

Drug Name
atebimetinib
Phase Of Trial
Phase 3
Trial name
MAPKeeper 301
Primary endpoint
overall survival
Topline data date
mid-2028

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