8-K
filed June 1, 2026, 4:51 PM ET
ticker IMRX
CIK 0001790340
other material
confidence high
sentiment positive
materiality 0.75
Immuneering reports 17.3-month median OS in Phase 2a pancreatic trial of atebimetinib
Immuneering Corp
- In 55-patient ITT population, mOS 17.3 months (cutoff Apr 24, 2026) vs 8.5 months standard of care.
- mPFS 8.3 months; ORR 36% (18/50), DCR 82% (41/50) in response-evaluable patients.
- 84% of evaluable patients maintained or gained weight; Grade ≥3 TEAEs: Anemia 16%, Neutropenia 18%.
- Expects first patient dosed in pivotal Phase 3 (MAPKeeper 301) mid-2026; topline data mid-2028.
- Plans Phase 1b/2 trial of atebimetinib+Libtayo in NSCLC starting H2 2026; data late 2027.
Machine-readable event card
- schema_version
- secwatch.filing_event.v1
- accession
- 0001790340-26-000059
- form_type
- 8-K
- ticker
- IMRX
- cik
- 0001790340
- company_name
- Immuneering Corp
- filed_at
- 2026-06-01T20:51:53+00:00
- discovered_at
- 2026-06-01T20:53:00.416109+00:00
- generated_at
- 2026-06-01T20:55:14.587035+00:00
- sec_items
- ["8.01"]
- event_type
- other_material
- sentiment
- positive
- materiality_score
- 0.75
- calibrated_materiality_score
- 0.75
- confidence
- high
- secwatch_canonical_url
- https://secwatch.observer/filing/0001790340-26-000059
- json_url
- https://secwatch.observer/filing/0001790340-26-000059.json
- markdown_url
- https://secwatch.observer/filing/0001790340-26-000059.md
- text_url
- https://secwatch.observer/filing/0001790340-26-000059.txt
- edgar_index_url
- https://www.sec.gov/Archives/edgar/data/1790340/000179034026000059/0001790340-26-000059-index.htm
- edgar_primary_document_url
- https://www.sec.gov/Archives/edgar/data/1790340/000179034026000059/imrx-20260601.htm
- generated_by_model
- deepseek-v4-flash:cloud@v2
- review_status
- machine_generated
- human_reviewed
- false
- corrected
- false
- correction_note
- null
- correction_timestamp
- null
- superseded_by
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