NCT03082534

Pembrolizumab Combined With Cetuximab for Treatment of Recurrent/Metastatic Head & Neck Squamous Cell Carcinoma

An Open-label, Non-randomized, Multi-arm, Phase II Trial to Evaluate the Efficacy of Pembrolizumab Combined With Cetuximab in Patients With Recurrent/Metastatic Head and Neck Squamous Cell Carcinoma (HNSCC)

• Status: Completed
• Phase: Phase 2
• Study type: Interventional
• Enrollment: 78 (actual)
• Sponsor: University of California, San Diego · Academic / Other
• Sex: All
• Age: 18 Years
• Healthy volunteers: Not accepted

Summary

This is a prospective, multi-center, open-label, non-randomized, multi-arm phase II trial to evaluate the efficacy of combination therapy with pembrolizumab and cetuximab for patients with recurrent/metastatic HNSCC. There will be four patient cohorts, including a PD-1/PD-L1 inhibitor-naïve, cetuximab-naïve arm (Cohort 1), a PD-1/PD-L1 inhibitor-refractory, cetuximab-naïve arm (Cohort 2), a PD-1/PD-L1 inhibitor-refractory, cetuximab-refractory arm (Cohort 3), and a cutaneous HNSCC arm (Cohort 4). A total of 83 patients (33 in Cohort 1, 25 in Cohort 2, 15 in Cohort 3, and 10 in Cohort 4) will be eligible to enroll. Patients will be enrolled at 4 sites: UC San Diego Moores Cancer Center, UC Los Angeles Jonsson Comprehensive Cancer Center, University of Michigan Comprehensive Cancer Center, and University of Washington Siteman Cancer Center.

Detailed description

Primary Objectives: To determine the clinical efficacy of pembrolizumab combined with cetuximab for patients with R/M HNSCC. 1. Cohort 1 (PD-1/PD-L1 inhibitor-naïve, cetuximab-naïve): clinical efficacy defined as overall response rate. 2. Cohort 2 (PD-1/PD-L1 inhibitor-refractory, cetuximab-naïve): clinical efficacy defined as overall response rate. 3. Cohort 3 (PD-1/PD-L1 inhibitor-refractory, cetuximab-refractory): clinical efficacy defined as overall response rate. 4. Cohort 4 (cutaneous HNSCC): clinical efficacy defined as overall response rate. Secondary Objectives: 1. To determine 12 month progression-free survival probability. 2. To determine overall survival. 3. To determine duration of response. 4. To assess safety and tolerability of pembrolizumab combined with cetuximab. 5. To evaluate the correlation between molecular markers and disease outcome.

Conditions

• HNSCC
• Lip SCC
• Oral Cavity Cancer
• Oropharynx Cancer
• Larynx Cancer
• Hypopharynx Cancer
• Nasopharynx Cancer
• Sinonasal Carcinoma
• Cutaneous Squamous Cell Carcinoma
• Head and Neck Neoplasms
• Head and Neck Cancer
• Head and Neck Squamous Cell Carcinoma

Interventions

Type	Name	Description
DRUG	Pembrolizumab, Cetuximab	Pembrolizumab (KEYTRUDA®; MK-3475) is a potent and highly selective humanized monoclonal antibody (mAb) of the immunoglobulin G4 (IgG4)/kappa isotype designed to directly block the interaction between PD-1 and its ligands, programmed cell death ligand 1 (PD-L1) and programmed cell death ligand 2 (PD-L2). This blockade enhances functional activity of the target lymphocytes to facilitate tumor regression and ultimately immune rejection. Cetuximab (Erbitux®) binds specifically to the epidermal growth factor receptor (EGFR) on both normal and tumor cells, and competitively inhibits the binding of EGF and other ligands, such as transforming growth factor-alpha. Cetuximab can mediate antibody-dependent cellular cytotoxicity (ADCC), with in vitro assays and in vivo animal studies demonstrating that cetuximab inhibits the growth and survival of tumor cells expressing EGFR.

Timeline

• Start date: 2017-03-28
• Primary completion: 2025-07-21
• Completion: 2025-09-11
• First posted: 2017-03-17
• Last updated: 2026-01-28

Locations

4 sites across 1 country: United States

Regulatory

• FDA-regulated drug study