Postoperative Radiotherapy With Nimotuzumab ± Benmelstobart in Intermediate-Risk Head and Neck Squamous Cell Carcinoma (NimoBenSeq)

April 24, 2026 updated by: Guopei Zhu, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University

Postoperative Radiotherapy And Nimotuzumab With or Without Benmelstobart Adjuvant Therapy in Patients With Head and Neck Squamous Cell Carcinoma Having Intermediate-Risk Pathological Factors: A Multicenter Prospective Randomized Controlled Study

A multicenter, randomized, controlled, open-label, Phase II/III clinical trial designed to evaluate the efficacy and safety of postoperative radiotherapy combined with Nimotuzumab,with or without Bemcentinib, in postoperative head and neck squamouscell cancer patients with intermediate-risk pathological factor. The primary endpoint is the 3-year disease-freesurvival (DFS). A total of 193 patients will be enrolled in both the experimental and control groups, resulting in a total planned enrollment of 386 patients.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Not yet recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
386

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 2
  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Age ≥ 18 years
  • ECOG performance status: 0-2
  • Histologically confirmed squamous cell carcinoma of the head and neck (oral cavity, oropharynx, larynx); oropharyngeal cancer must be p16-negative (p16 positivity defined as ≥70% staining)

  • Completionof curative-intent surgery, with any of the following intermediate-risk factors present postoperatively:

    ①pT3-4a;

    ②N2 disease (excluding cases with extranodal extension);

    ③Closemargin < 5 mm;

    ④Lymphovascular and/or perineural invasion;

    ⑤Invasion depth > 5mm for T2 oral cavity cancer

  • Laboratory tests must meet the following criteria:

    ①Hematologic parameters (within 14 days without transfusion or blood products): a. Hemoglobin (Hb) ≥80 g/L; b.Absolute neutrophil count (ANC) ≥ 1.0 × 10⁹/L; c. Platelet count (PLT) ≥ 80 × 10⁹/L;

    ②Biochemical parameters: a. Bilirubin (BIL) < 1.5 × upperlimit of normal (ULN); b.Alanine aminotransferase (ALT) and aspartate aminotransferase (AST) ≤ 2.5 × ULN;

  • Expected survival time ≥ 6 months;
  • Women of child bearing potential must have a negative pregnancy test (serum or urine) within 7 days prior to enrollment and agree to use reliable contraception during the study period; Male subjects must use reliable contraception from before treatment initiation until 120 days after the last dose of study drug
  • With PD-L1 immunohistochemistry testing
  • Participant voluntarily agrees to participate in this study and signs the informed consent form

Exclusion Criteria:

  • Pregnancy or lactation, or intention to become pregnant during the study period.
  • Presence of active autoimmune disease or immunodeficiency, including but not limited to: myasthenia gravis, interstitial pneumonia, enteritis, autoimmune hepatitis, hypophysitis, vasculitis, nephritis, or hyperthyroidism.
  • Known human immunodeficiency virus (HIV) infection, history of autoimmune diseases, or history of organ transplantation.
  • Use of systemic immunosuppressive drugs within 2 weeks prior to initiation of study treatment, or anticipated need for systemic immunosuppressive therapy during the study treatment period.
  • Diagnosis of another malignancy within 3 years prior to enrollment.
  • History of Grade I or higher myocardial ischemia or myocardial infarction, severe arrhythmia, or ≥ Grade 2 congestive heart failure (New York Heart Association [NYHA] classification) within 6 months prior to enrollment.
  • Participation in another clinical trial or completion of another clinical trial within 4 weeks prior to enrollment.
  • Prior treatment of immunotherapy (including PD-1/PD-L1/CTLA-4 antibodies) or anti-EGFR agents.
  • Known or suspected allergy to the investigational product or any drug related to this trial.
  • Any other severe medical condition that, in the investigator's judgment, may compromise patient safety or interfere with the subject's ability to complete the study.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: IMRT-Nimotuzumab + Benmelstobart
Concurrent Nimotuzumab with intensity-modulated radiotherapy (IMRT), followed by adjuvant Benmelstobart therapy
Drug: Nimotuzumab, Benmelstobart

Nimotuzumab: 200 mg on Day 1, once weekly (QW) for a total of 6 cycles.

Bemcentinib: 1200 mg on Day 1, every 3 weeks (Q3W) for a total of 9 cycles, initiated 3-4 weeks after completion of radiotherapy.

Radiation: Postoperative Radiotherapy
Intensity-modulated radiation therapy (IMRT) will be administered at a total dose of 60Gy (2 Gy per fraction, 30 fractions)
Active Comparator: IMRT-Nimotuzumab
Concurrent Nimotuzumab with intensity-modulated radiotherapy (IMRT)
Radiation: Postoperative Radiotherapy
Intensity-modulated radiation therapy (IMRT) will be administered at a total dose of 60Gy (2 Gy per fraction, 30 fractions)
Drug: Nimotuzumab
Nimotuzumab: 200 mg on Day 1, once weekly (QW) for a total of 6 cycles.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Disease-Free Survival (DFS）
Time Frame: 3-year
From randomization until disease recurrence, metastasis, second primary cancer, or death from any cause
3-year

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Locoregional Recurrence-Free Survival (LRRFS)
Time Frame: From enrollment until first locoregional recurrence, assessed up to 3 years after last patient enrolled
From enrollment until first locoregional recurrence, assessed up to 3 years after last patient enrolled
Distant Metastasis-Free Survival (DMFS)
Time Frame: From enrollment until first distant metastasis, assessed up to 3 years after last patient enrolled
From enrollment until first distant metastasis, assessed up to 3 years after last patient enrolled
Overall Survival (OS)
Time Frame: 3-year
From enrollment until death from any cause
3-year
Adverse Events (AEs)
Time Frame: 30 days after the last dose (approximately 8 weeks total).
From the first dose of nimotuzumab through 30 days after the last dose (approximately 8 weeks total).
30 days after the last dose (approximately 8 weeks total).

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
May 5, 2026

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
December 31, 2028

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 31, 2028

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
April 10, 2026

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
April 10, 2026

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
April 17, 2026

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
April 30, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
April 24, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
April 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 2026HN02

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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