SBRT Followed by Neoadjuvant Chemoimmunotherapy of Sindilizumab Plus Docetaxel and Cisplatin for Locoregionally Advanced Squamous Carcinoma of Oral Cavity and Oropharynx

Phase 2RecruitingNCT06219980

Sun Yat-sen University25 enrolled

Overview

In resectable locally advanced oral cavity cancer and oropharyngeal cancer, SBRT with the total dose of 18 Gy by three fractions will be delivered to the primary tumor and metastatic lymph nodes every other day. One week later, neoadjuvant chemoimmunotherapy of Sindilizumab (200mg) plus docetaxel (75mg/m2) and cisplatin (75mg/m2) will be administered every three weeks for three cycles. Then radical surgical resection will be performed and postoperative radiotherapy with or without chemotherapy will be supplemented according to the initial tumor staging and postoperative pathologic characteristics. The investigators aim to evaluate the pathological complete response rate and safety of the combined treatment of SBRT with chemoimmunotherapy in locally advanced cancers of oral cavity and oropharynx.

Study Type

INTERVENTIONAL

Allocation

Purpose

TREATMENT

Masking

NONE

Enrollment

Conditions

SBRT

Interventions

All eligible patients will receive SBRT (6Gy\*3 fractions, qod) to the primary site and metastatic lymph nodes. One week later, neoadjuvant chemoimmunotherapy of Sindilizumab (200mg) plus docetaxel (75mg/m2) and cisplatin (75mg/m2) will be administered every three weeks for three cycles. Then radical surgical resection will be performed and postoperative radiotherapy with or without chemotherapy will be supplemented according to the initial tumor staging and postoperative pathologic characteristics.

Eligibility

Sex: ALLMin age: 18 YearsMax age: 70 Years

Medical Language ↔ Plain English

Inclusion Criteria: * pathologically confirmed squamous carcinoma of oral cavity or oropharynx * III-IVa based on the eighth edition of AJCC * aged 18 to 70 * ECOG PS 0-1 * no organ dysfunction * Expected survival ≥ 3 months Exclusion Criteria: * diagnosed with other malignant tumors * has autoimmune diseases or serious mental illness * at high risk of hemorrhage * Systemic or local glucocorticoid therapy within 4 weeks * Comorbidities requiring long-term treatment with immunosuppressive drugs or systemic or topical corticosteroids in immunosuppressive doses * Patients with active tuberculosis (TB) who are receiving anti-tuberculosis treatment or have received anti-tuberculosis treatment within 1 year prior to screening. * Prior use of anti-PD-1 antibody, anti-PD-L1 antibody, anti-PD-L2 antibody, or anti-CTLA-4 antibody * HIV or HCV * HBsAg positive with positive HBV DNA copy number (quantitative test) ≥1000cps/ml

Outcomes

Primary Outcomes

rate of pathological complete response

pathological complete response rate after radical resection

Time frame: immediately after the surgery

Secondary Outcomes

rate of major pathological response

Time frame: immediately after the surgery

objective response rate

Time frame: two weeks after the chemoimmunotherapy

disease free survival

Time frame: 3-year

overall survival

Time frame: 3-year

rate of adverse events

Time frame: one month after the postoperative radiotherapy