Part A (NG-641 monotherapy): Approximately 16 evaluable patients will receive three doses of IV NG-641 in Part A. Patients will then proceed to planned surgical resection.~Part B (NG-641 and pembrolizumab): Up to 20 evaluable patients will receive three doses of IV NG-641 and one dose of pembrolizumab. Patients will then proceed to planned surgical resection.
A multicentre, open-label, non-randomized, phase Ib neoadjuvant study of intravenous NG-641, as monotherapy or in combination with pembrolizumab, in patients with surgically resectable squamous cell carcinoma of the head and neck (SCCHN).