Positive early data on Merus’ petosemtamab

9 December 2024

Netherlands-based clinical-stage biotech Merus (Nasdaq: MRUS) on Saturday announced interim clinical data as of a July 5, 2024 data cutoff from the ongoing Phase I/II trial of petosemtamab, a Biclonics targeting EGFR and LGR5, in previously treated (second line [2L]+) patients (pts) with recurrent/metastatic (r/m) head and neck squamous cell carcinoma (HNSCC).

These data were presented by Dr Christophe Le Tourneau of the Institut Curie, Paris, France at the European Society for Medical Oncology (ESMO) Asia Congress.

However, investors were not that impressed, sending Merus’ shares down 5.8% to $42.05 in pre-market activity today.

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