Press release 📈 Stocks 🌍 Denmark ISIN DK0010272202

Genmab Reports 28.2 Months Median Survival in Phase 2 Head and Neck Cancer Trial

Genmab's petosemtamab combination therapy shows strong efficacy in Phase 2 trials for head and neck cancer, achieving a 28.2-month median overall survival rate.

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Genmab reported positive Phase 2 data for petosemtamab in combination with pembrolizumab for first-line HNSCC, showing a median overall survival of 28.2 months and a 63% ORR. These results significantly outperform historical benchmarks for recurrent/metastatic HNSCC, which typically see survival in the 10-12 month range, validating the company's bispecific antibody strategy. The data provides a strong foundation for the ongoing Phase 3 LiGeR clinical program.

Catalysts
  • ▲ Positive Phase 2 trial results for petosemtamab in 1L HNSCC presented at ESMO 2026
  • ▲ Ongoing Phase 3 LiGeR clinical development program across four trials
Risk Factors
  • ▼ Clinical trial failure or unforeseen safety issues in Phase 3 LiGeR studies
  • ▼ Regulatory rejection or failure to achieve market acceptance
▼ Show FAQ (2) ▲ Hide FAQ
What is the primary mechanism of petosemtamab?

It is a bispecific antibody targeting EGFR and LGR5, designed to inhibit EGFR signaling, trigger EGFR degradation in cancer stem-like cells, and enhance innate immune-mediated activity.

How does the 28.2-month median OS compare to standard outcomes?

It is significantly higher than the typical 10-12 month median overall survival observed in recurrent/metastatic HNSCC patients.

🎯 Key Takeaways

  • Petosemtamab combined with pembrolizumab achieved a 28.2-month median overall survival in first-line HNSCC patients.
  • The trial reported a 63% overall response rate with a manageable safety profile and no treatment-related deaths.
  • Genmab is currently advancing four Phase 3 LiGeR trials to further evaluate the drug's potential across multiple cancer indications.

📝 Executive Summary

Genmab A/S announced positive Phase 2 results for its investigational antibody petosemtamab in combination with pembrolizumab for first-line head and neck squamous cell carcinoma. The treatment demonstrated a median overall survival of 28.2 months and an overall response rate of 63%, significantly outperforming historical benchmarks for the disease.

❓ FAQ

What is the significance of the petosemtamab trial results?

The results are significant because the 28.2-month median overall survival is substantially higher than the typical 10-12 month survival rate for recurrent or metastatic HNSCC.