The Efficacy and Safety of Pucotenlimab Combined With TP Chemotherapy as Neoadjuvant Therapy for Locally Advanced HNSCC

The Efficacy and Safety of Pucotenlimab Combined With TP Chemotherapy Regimen (Cisplatin and Docetaxel) as Neoadjuvant Therapy for Locally Advanced Squamous Cell Carcinoma of the Head and Neck

Study Objective: To evaluate the efficacy and safety of pucotenlimab combined with TP (cisplatin + docetaxel) as neoadjuvant therapy for locally advanced head and neck squamous cell carcinoma (HNSCC).

Study Design: This is a single-arm interventional study. Intervention: Patients will receive 3 cycles of pucotenlimab combined with TP (cisplatin + docetaxel) as neoadjuvant therapy, followed by standard surgical treatment and postoperative histopathological examination.

Endpoints: Pathological complete response rate (pCR) after surgery, major pathological response rate (MPR) of the treatment regimen, disease-free survival (DFS), and overall survival (OS).

Hypothesis: The combination of pucotenlimab and TP (cisplatin + docetaxel) as neoadjuvant therapy for locally advanced HNSCC is expected to improve pathological response rates and enhance patient prognosis.

Study Overview

• Status: Not yet recruiting
• Conditions: Squamous Cell Carcinoma of Head and Neck
• Intervention / Treatment: Drug: Pucotenlimab

• Study Type: Interventional
• Enrollment (Estimated): 30
• Phase: Phase 2

Contacts and Locations

• Study Contact: Name: Xiaohua Jiang, Master; Phone Number: 086 13777469596; Email: jxhua2008@zju.edu.cn

Study Locations

• China
  • Zhejiang
    • Hanzhou, Zhejiang, China, 310016
      • Sir Run Run Shaw Hospital
      • Contact: Xiaohua Jiang, Master; Phone Number: 086 13777469596

Participation Criteria

Eligibility Criteria

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

Description

Inclusion Criteria:

1. Age: 18 to 70 years old.
2. Diagnosis: Histopathologically confirmed head and neck squamous cell carcinoma (HNSCC) of the oropharynx, oral cavity, hypopharynx, or larynx, classified as Stage III or IV A according to the AJCC Cancer Staging Manual (8th Edition).
3. Measurable Disease: At least one measurable primary lesion per RECIST 1.1 criteria.
4. Treatment Status: Treatment-naïve patients with no prior therapy for the disease.
5. Performance Status: ECOG performance status of 0-1.
6. Surgical Eligibility: Deemed eligible for elective standard surgery followed by standard adjuvant chemoradiotherapy/radiotherapy, as assessed by the investigator.
7. Autoimmune Disease: No active autoimmune diseases.
8. Concurrent Malignancy: No concurrent malignancies.
9. Life Expectancy: ≥6 months.
10. Biomarker Testing: Available tumor tissue samples for PD-L1 testing via Combined Positive Score (CPS) using 22C3 pharmDx assay (DAKO).

11. Hematologic Parameters:

    • ANC ≥1.5×10⁹/L, platelet count ≥100×10⁹/L, hemoglobin ≥100 g/L, WBC ≥3.5×10⁹/L.
    • No transfusion within 7 days or bleeding tendency.
12. Liver Function: ALT, AST, ALP, and total bilirubin ≤1.5× upper limit of normal (ULN).
13. Renal Function: Serum creatinine ≤1.5× ULN or creatinine clearance >60 mL/min.
14. HPV Status: HPV status confirmed via p16 immunohistochemistry (IHC) and/or in situ hybridization (ISH).
15. Informed Consent: Voluntarily participates and signs informed consent. For participants unable to consent due to incapacity, consent must be provided by a legally authorized representative. For illiterate participants, an impartial witness must attest to the informed consent process.

Exclusion Criteria:

1. Cachexia or multiple organ failure.
2. Active autoimmune disease(s) requiring systemic treatment (excluding vitiligo, resolved childhood asthma/atopy, or controlled hypothyroidism on hormone replacement).
3. Concurrent second primary malignancy (e.g., esophageal cancer).
4. Severe active infection requiring systemic therapy.

5. Uncontrolled comorbid medical conditions that may compromise protocol compliance, per investigator judgment, including:

   • Severe cardiovascular/cerebrovascular diseases,
   • Uncontrolled diabetes/hypertension,
   • Active peptic ulcer,
   • Uncontrolled infections.
6. Dementia, altered mental status, or cognitive impairment affecting informed consent or questionnaire completion.
7. Grade ≥2 peripheral neuropathy (per CTCAE v5.0).
8. Grade ≥2 hearing impairment (per CTCAE v5.0).
9. History of malignancy within the past 5 years (excluding cured non-melanoma skin cancer or carcinoma in situ).
10. Known HIV-positive status or AIDS.
11. Nasopharyngeal carcinoma or squamous cell carcinoma originating outside oral cavity, oropharynx, hypopharynx, or larynx (e.g., sinonasal tract, paranasal sinuses, or unknown primary).
12. Participation in another interventional clinical trial or use of investigational drugs within 30 days prior to screening.

13. Systemic glucocorticoids (>10 mg/day prednisone equivalent) or immunosuppressive agents within 14 days prior to randomization.

    • Exceptions: Inhaled/topical steroids or physiologic replacement doses for adrenal insufficiency.

14. Pregnancy, breastfeeding, or refusal of contraception by subjects of childbearing potential.
15. Active infection requiring treatment or systemic antimicrobial use within 1 week prior to first dose.
16. Live vaccines administered within 30 days before first dose or during the study.
17. Vulnerable populations (e.g., severe psychiatric disorders, cognitive impairment, critically ill patients, prisoners, pregnant individuals).
18. Other conditions deemed by the investigator to preclude safe study participation.

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: experimental group; Patients will receive 3 cycles of Pucotenlimab combined with TP (cisplatin + docetaxel) as neoadjuvant therapy, followed by standard surgical treatment and postoperative histopathological examination.	Drug: Pucotenlimab; patients will receive 3 cycles of pucotenlimab combined with TP (cisplatin + docetaxel) as neoadjuvant therapy, followed by standard surgical treatment; Other Names: Cisplatin; Docetaxel

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Pathological complete response rate	Pathological complete response rate (pCR) after surgery	The anticipated completion date is within 3.5 months after the enrollment of the last patient, with the overall study expected to conclude within 2 years following the enrollment of the first patient.

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Major pathological response rate	major pathological response rate (MPR) of the treatment regimen	The anticipated completion date is within 3.5 months after the enrollment of the last patient, with the overall study expected to conclude within 2 years following the enrollment of the first patient.

Collaborators and Investigators

• Sponsor: Sir Run Run Shaw Hospital
• Investigators: Study Chair: Xiaohua Jiang, Master, Sir Run Run Hospital

Study record dates

Study Major Dates

• Study Start (Estimated): May 1, 2025
• Primary Completion (Estimated): December 31, 2028
• Study Completion (Estimated): December 31, 2033

Study Registration Dates

• First Submitted: March 11, 2025
• First Submitted That Met QC Criteria: March 25, 2025
• First Posted (Estimated): March 26, 2025

Study Record Updates

• Last Update Posted (Estimated): March 26, 2025
• Last Update Submitted That Met QC Criteria: March 25, 2025
• Last Verified: March 1, 2025

More Information

Terms related to this study

• Keywords: Neoadjuvant Therapy; Squamous Cell Carcinoma of Head and Neck; Pucotenlimab
• Additional Relevant MeSH Terms: Neoplasms by Site; Neoplasms; Neoplasms by Histologic Type; Head and Neck Neoplasms; Neoplasms, Glandular and Epithelial; Neoplasms, Squamous Cell; Squamous Cell Carcinoma of Head and Neck; Carcinoma; Carcinoma, Squamous Cell; Antineoplastic Agents; Molecular Mechanisms of Pharmacological Action; Tubulin Modulators; Antimitotic Agents; Mitosis Modulators; Docetaxel; Cisplatin
• Other Study ID Numbers: XiaohuaJiang

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO
• IPD Plan Description: We have no IPD sharing plan.

Drug and device information, study documents

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