OnCo
trialsTrialRecruiting

LiGeR-HN1

Tests whether a two-armed antibody against EGFR and a stem-cell marker can lift first-line immunotherapy results in head and neck cancer.

Phase 2 petosemtamab + pembrolizumab reported ORR ~63% in first-line PD-L1-positive HNSCC (ASCO 2025), far above pembrolizumab's historical ~19-23%. LiGeR-HN1 (first line, includes HPV-positive disease) and LiGeR-HN2 (second line, monotherapy vs chemotherapy) are the registrational trials; interim analyses expected 2026-27.

Setting
Untreated PD-L1-positive recurrent or metastatic HNSCC: petosemtamab + pembrolizumab vs pembrolizumab
Phase
Phase 3
Sponsor
Merus (Genmab)
Registry

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