An Open-label Phase II/III Randomized Trial of BNT113 in Combination With Pembrolizumab Versus Pembrolizumab Monotherapy as a First Line Therapy in Patients With Unresectable Recurrent, or Metastatic Head and Neck Squamous Cell Carcinoma (HNSCC) Which is Positive for Human Papilloma Virus 16 (HPV16+) and Expresses PD-L1
An open-label, controlled, multi-site, interventional, 2-arm, Phase II/III trial of BNT113 in combination with pembrolizumab vs pembrolizumab monotherapy as first line treatment in patients with unresectable recurrent or metastatic HPV16+ HNSCC expressing programmed cell death ligand-1 (PD-L1) with combined positive score (CPS) ≥1. This trial has two parts. Part A, is an initial non-randomized Safety Run-In Phase to confirm the safety and tolerability at the selected dose range level of BNT113 in combination with pembrolizumab. Part B, is a randomized part to generate pivotal efficacy and safety data of BNT113 in combination with pembrolizumab versus pembrolizumab monotherapy in the first line setting in patients with unresectable recurrent or metastatic HPV16+ HNSCC expressing PD-L1 with CPS ≥1. Patients included in the Safety Run-In Phase of the trial (Part A) will not be randomized to Part B and will continue on-trial treatment (BNT113 plus pembrolizumab) within Part A. For Part B, an optional pre-screening phase is available for all patients where patients' tumor samples may be submitted for central HPV16 DNA and central PD-L1 expression testing prior to screening into the main trial. Patients will be treated with BNT113 in combination with pembrolizumab or with pembrolizumab monotherapy for approximately up to 24 months.
• Patients must sign the written pre-screening informed consent form (ICF) before any pre-screening procedures.
• Patients who present histologically confirmed recurrent or metastatic HPV16+ HNSCC that is considered incurable by local therapies.
• Patients who have a tumor that expresses PD-L1 \[CPS ≥1\] as determined by the European Conformity (CE)-marked/Food and Drug Administration-approved CDx PD-L1 immunohistochemistry 22C3 pharmDx performed according to the manufacturer's instructions for use.
• Patients must not have had prior systemic anticancer therapy administered in the incurable recurrent or metastatic setting. Systemic therapy which was completed more than 180 days prior to randomization, if given as part of multimodal treatment for locally advanced disease, is allowed.
• Patients who have measurable disease based on RECIST 1.1 as determined by the site and confirmed by BICR. Tumor lesions situated in a previously irradiated area may be considered measurable, if progression has been demonstrated in such lesions disease by RECIST 1.1.
• All patients must provide a tumor tissue sample (formalin fixed paraffin embedded \[FFPE\] blocks or both slides and curls) from archival tissue. Alternatively, a fresh biopsy sample could be provided if a biopsy sample is performed as part of the patient's standard clinical practice before the first dose of trial treatment. The sample should be preferably derived from a current site of metastatic or recurrent disease. Otherwise, a sample from the primary tumor can be submitted.