Phase II Study of Ficerafusp Alfa in Combination With Nivolumab in Patients With Platinum-refractory Head and Neck Squamous Cell Carcinoma

This is a multicenter study comprising two phases: a run-in phase, including only patients receiving ficerafusp alfa and nivolumab, and a randomized phase, which corresponds to a randomized, open-label, phase II comparative study. The primary objective is to compare the objective response rate (ORR) of patients with platinum refractory HNSCC with progressive disease within the 6 months after multimodal curative treatment treated with ficerafusp alfa (BCA 101) and nivolumab versus nivolumab alone. There is a strong medical justification for combining ficerafusp alfa with nivolumab (anti-PD-1) to provide additional clinical benefit to patients with platinum-refractory HNSCC who are progressing within 6 months of multimodal treatment for locally advanced disease. In the Run-in phase, patients will receive the following treatment regimens according to the study intervention plan: Combination of Ficerafusp alfa + Nivolumab * Ficerafusp alfa 1500 mg every week * Nivolumab 240 mg every 2 weeks In the randomized trial: * ARM A Combination of Ficerafusp alfa + Nivolumab Ficerafusp alfa 1500 mg every week Nivolumab 240 mg every 2 weeks * ARM B Nivolumab monotherapy Nivolumab 240 mg every 2 weeks