Sintilimab-Nimotuzumab Induction Followed by Chemoradiation-Nimotuzumab in LA-HNSCC: Single-Arm Phase II

A Single-Arm Phase II Study of Sintilimab Plus Nimotuzumab and Chemotherapy Followed by Definitive Chemoradiotherapy With Nimotuzumab for Locally Advanced Head and Neck Squamous Cell Carcinoma

Although multiple immune-checkpoint inhibitors (ICIs) have demonstrated efficacy in recurrent or metastatic squamous-cell carcinoma of the head and neck (R/M-SCCHN), outcomes in the locally advanced (LA-SCCHN) setting remain suboptimal, and treatment continues to pose a major therapeutic challenge. Incremental improvements in efficacy are still required, necessitating the development of more effective regimens. Whether combining an ICI with chemotherapy and nimotuzumab can confer additional clinical benefit in LA-SCCHN remains to be determined. Against this backdrop, we designed a single-arm, phase II, single-centre clinical trial to evaluate the efficacy and safety of sintilimab plus chemotherapy and nimotuzumab for patients with LA-SCCHN.

Study Overview

• Status: Not yet recruiting
• Conditions: Locally Advanced Head and Neck Squamous Cell Carcinoma (LA-SCCHN)
• Intervention / Treatment: Drug: Sintilimab combined with chemotherapy and nimotuzumab

• Study Type: Interventional
• Enrollment (Estimated): 23
• Phase: Phase 2

Contacts and Locations

• Study Contact: Name: Yun Xu; Phone Number: +86 136 0088 3867; Email: 308466040@qq.com

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Adult; Older Adult
• Accepts Healthy Volunteers: No

Description

Inclusion Criteria:

1. Provision of written informed consent, with full understanding of and agreement to comply with study requirements and the visit schedule.
2. Age 18-75 years (inclusive) at the time of informed consent; either sex.
3. Eastern Cooperative Oncology Group (ECOG) performance status 0 or 1.
4. Histologically or cytologically confirmed stage III-IVB squamous cell carcinoma of the head and neck as assessed by the investigator.
5. Documented EGFR-positive tumor.
6. No prior systemic therapy for head and neck squamous cell carcinoma.
7. At least one measurable lesion per RECIST v1.1.
8. Estimated life expectancy ≥ 12 weeks.
9. Adequate bone-marrow and organ function.

Exclusion Criteria:

1. Known hypersensitivity to any component of PD(L)-1 inhibitors, paclitaxel, or cisplatin.
2. Prior or concurrent malignancy (except adequately treated basal-cell carcinoma, cervical carcinoma in situ, or papillary thyroid carcinoma disease-free for >5 years).
3. Uncontrolled cardiac symptoms or clinically significant cardiac disease.
4. Previous therapy with anti-PD-1, anti-PD-L1, or anti-CTLA-4 antibodies, or receipt of therapeutic cancer vaccines or live vaccines within 4 weeks before first study-dose administration.
5. Failure to recover to ≤ Grade 1 (per CTCAE) from prior anti-tumour therapy-except alopecia or residual neurotoxicity related to prior platinum-before first study dose.
6. Severe infection (> CTCAE Grade 2) within 4 weeks before first study dose.
7. Active autoimmune disease or documented autoimmune-disease history requiring systemic therapy.
8. History of immunodeficiency, including positive HIV test, congenital or acquired immunodeficiency syndromes, or prior solid-organ or allogeneic bone-marrow transplantation.
9. History of interstitial lung disease or non-infectious pneumonitis.
10. Evidence of active tuberculosis infection on history or CT imaging.
11. Active hepatitis B (HBV DNA ≥ 500 IU/mL or ≥ 2,500 copies/mL).
12. History of substance abuse, alcohol abuse, or drug addiction.
13. Pregnant or lactating women.
14. Any condition that, in the investigator's opinion, could necessitate premature withdrawal from the study.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: N/A
• Interventional Model: Single Group Assignment
• Masking: None (Open Label)

Number of Arms

1

Arms and Interventions

Participant Group / Arm

Intervention / Treatment

Experimental: Sintilimab combined with chemotherapy and nimotuzumab for patients with LA-SCCHN

Drug: Sintilimab combined with chemotherapy and nimotuzumab; The study plans to enroll patients with locally advanced squamous cell carcinoma of the head and neck. After induction with sintilimab plus paclitaxel, cisplatin, and nimotuzumab, participants will receive concurrent chemoradiotherapy with nimotuzumab, followed by maintenance sintilimab monotherapy until disease progression, unacceptable toxicity, death, or withdrawal of consent.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Time Frame
Larynx-preservation rate at 3 months post-radiotherapy	3 months

Secondary Outcome Measures

Outcome Measure	Time Frame
objective response rate	24 months
One-year progression-free survival (PFS) rates	12 months
Two-year progression-free survival (PFS) rates	24 months
One-year loco-regional relapse-free survival (LRFS) rates.	12 months
two-year loco-regional relapse-free survival (LRFS) rates.	24 months
One- year distant-metastasis-free survival (DMFS) rates.	12 months
two-year distant-metastasis-free survival (DMFS) rates	24 months
One-year larynx-preservation rates	12 months
AE/SAE	42 months

Collaborators and Investigators

• Sponsor: Fujian Cancer Hospital

Study record dates

Study Major Dates

• Study Start (Estimated): January 10, 2026
• Primary Completion (Estimated): July 10, 2027
• Study Completion (Estimated): July 10, 2029

Study Registration Dates

• First Submitted: December 16, 2025
• First Submitted That Met QC Criteria: December 16, 2025
• First Posted (Actual): December 30, 2025

Study Record Updates

• Last Update Posted (Actual): December 30, 2025
• Last Update Submitted That Met QC Criteria: December 16, 2025
• Last Verified: December 1, 2025

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Therapeutics; Drug Therapy; nimotuzumab
• Other Study ID Numbers: K2025-193-01

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: YES

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No