Clinical Trial Comparing Induction Treatment With EGFR-ADC MRG003 Alone or in Combination With the Anti PD1 Pucotenlimab, Followed by Radiochemotherapy in Locally Advanced Squamous Cell Cancers of the Head and Neck

Recruiting now · Phase 2

Conditions studied: Locally Advanced Head and Neck Squamous Cell Carcinoma

In brief

The primary objective of this study is to compare the objective response rate (ORR) of patients with LA-HNSCC, treated with induction of EGFR-ADC MRG003 and anti PD-1 Pucotenlimab versus EGFR-ADC MRG003 alone before chemoradiotherapy. People eligible to participate in this study must be between the ages of 18 and 75 and have locally advanced squamous cell carcinoma of the head and neck requiring treatment with chemoradiotherapy (cisplatin combined with radiotherapy). Half of the research participants will receive MRG003 alone as induction before radiochemotherapy and the other half will receive MRG003 combined with pucotenlimab as induction before radiochemotherapy, then pucotenlimab as adjuvant\* after radiochemotherapy.

Key facts

Study ID: NCT06959108
Run by: Groupe Oncologie Radiotherapie Tete et Cou
People needed: 106
Starts: 2025-10-13
Expected to finish: 2029-10-01
Last updated by the study team: 2026-04-07

Who can join

Age: 18 and older, up to 75. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

Patients with Eastern Cooperative Oncology Group (ECOG) performance status (PS) 0 or 1
Evaluable tumor burden assessed by H\&N-computed tomography scan (CT-scan) or magnetic resonance imaging (MRI), based on RECIST v 1.1
Patients eligible to cisplatin-based chemotherapy
No hearing loss by clinical assessment or ≤ grade 2 hearing impairment (according to NCICTCAE v.5
No prior treatment with chemotherapy, immunotherapy and targeted therapy for H\&N cancer, radiotherapy or surgery in the head and neck region.

You may not qualify if…

Metastatic disease (stage IVC as per AJCC/TNM, 8th Ed.).
Patients having received prior therapy with anti-PD1, anti-PD-L1, anti-PD-L2, anti- CD137, or anti-CTLA-4 antibody (or any other antibody or drug specifically targeting Tcell co-stimulation or checkpoint pathways).
Treatment for other diseases with an investigational agent or use of an investigational device within 4 weeks of the first dose of study treatment
History of another malignancy within the last 3 years prior to randomization, with the exception of completely resected non-melanoma cell skin cancer outside the head and neck area or completely resected stage I breast cancer, or completely resected in-situ nonmuscular invasive bladder, cervix, uterine and/or prostate (Gleason 6) carcinomas, or T1a squamous cell carcinoma of the esophagus or rectum/anus.
Patients with clinically significant (i.e., active) cardiovascular disease: cerebral vascular accident/stroke (< 6 months prior to enrollment), myocardial infarction (< 6 months prior to enrollment), unstable angina, congestive heart failure (≥ New York Heart Association Classification Class II), or serious cardiac arrhythmia requiring medication, or known persistent reduced left ventricular ejection fraction < 50%.
Patients with positive test for human immunodeficiency virus (HIV) or known acquired immunodeficiency syndrome (AIDS).
Patients with positive tests for hepatitis B virus surface antigen (HBsAg) or hepatitis C virus ribonucleic acid (HCV RNA) indicating active or chronic infection. Presence of other serious liver diseases, including chronic autoimmune hepatic disorders, primary biliary cirrhosis or sclerosing cholangitis.

Where it is running

Gustave Roussy — Villejuif, France (enrolling)

Full record on ClinicalTrials.gov

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