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Trial Title: Phase II Trial: Low-Dose Radiation + SBRT + Sintilimab + Chemotherapy vs. Sintilimab + Chemotherapy in Locally Advanced or Metastatic Squamous Cell Lung Cancer

NCT ID: NCT06121505

Condition: Lung Squamous Cell Carcinoma

Conditions: Official terms:
Carcinoma, Squamous Cell

Conditions: Keywords:
SBRT
Immunotherapy
LDRT
Lung Squamous Cell Carcinoma

Study type: Interventional

Study phase: Phase 2

Overall status: Recruiting

Study design:

Allocation: Randomized

Intervention model: Parallel Assignment

Primary purpose: Treatment

Masking: None (Open Label)

Intervention:

Intervention type: Radiation
Intervention name: low-dose radiation therapy and stereotactic body radiation therapy
Description: Patients will receive radiation therapy.
Arm group label: Radiotherapy combined with sintilimab and chemotherapy

Other name: RT

Intervention type: Drug
Intervention name: chemotherapy
Description: Patients will receive sintilimab combined with standard platinum-based doublet chemotherapy for a total of 4 cycles. Patients subsequently received maintenance treatment with sintilimab, and continued treatment until disease progression (PD), intolerable toxicity, withdrawal of informed consent, initiation of other anti-tumor treatments, death, or other circumstances that should stop treatment as specified in the protocol. Whichever occurs first. The maximum treatment time with sintilimab is 24 months (or 35 cycles).
Arm group label: Radiotherapy combined with sintilimab and chemotherapy
Arm group label: Sintilimab+Chemotherapy

Other name: standard platinum-containing double-drug chemotherapy

Intervention type: Drug
Intervention name: Sintilimab
Description: Patients will receive sintilimab combined with standard platinum-based doublet chemotherapy for a total of 4 cycles. Patients subsequently received maintenance treatment with sintilimab, and continued treatment until disease progression (PD), intolerable toxicity, withdrawal of informed consent, initiation of other anti-tumor treatments, death, or other circumstances that should stop treatment as specified in the protocol. Whichever occurs first. The maximum treatment time with sintilimab is 24 months (or 35 cycles).
Arm group label: Radiotherapy combined with sintilimab and chemotherapy
Arm group label: Sintilimab+Chemotherapy

Summary: This is a randomized, controlled, open-label, multicenter phase II clinical trial comparing the efficacy and safety of low-dose radiation therapy and stereotactic body radiation therapy combined with PD-1 inhibitor (sintilimab) and standard platinum-based doublet chemotherapy versus PD-1 inhibitor (sintilimab) combined with standard platinum-based doublet chemotherapy as first-line treatment in patients with locally advanced or metastatic squamous cell lung cancer. There will be 57 subjects in the experimental group and 57 subjects in the control group, with a total of 114 subjects.

Detailed description: This is a randomized, controlled, open-label, multicenter phase II clinical trial comparing the efficacy and safety of low-dose radiation therapy and stereotactic body radiation therapy combined with PD-1 inhibitor (sintilimab) and standard platinum-based doublet chemotherapy versus PD-1 inhibitor (sintilimab) combined with standard platinum-based doublet chemotherapy as first-line treatment in patients with locally advanced or metastatic squamous cell lung cancer. Patients with previously untreated, locally advanced or metastatic (unresectable or not eligible for definitive chemoradiotherapy, stage IIIB-IV) squamous cell lung cancer who have signed informed consent will be screened for eligibility. Qualified subjects who meet the inclusion criteria will be randomly assigned at a 1:1 ratio to the experimental group (radiation therapy plus sintilimab and chemotherapy) or the control group (sintilimab plus chemotherapy). Based on sample size estimation according to statistical hypotheses, there will be 57 subjects in the experimental group and 57 subjects in the control group, with a total of 114 subjects. Subjects in the experimental group will receive radiation therapy. Within 1 week after radiation therapy, they will receive treatment with sintilimab combined with standard platinum-based doublet chemotherapy. Chemotherapy combined with immunotherapy will consist of a total of 4 cycles. Patients will subsequently receive maintenance therapy with sintilimab. Subjects in the control group will receive treatment with sintilimab combined with standard platinum-based doublet chemotherapy, consisting of a total of 4 cycles. Patients will subsequently receive maintenance therapy with sintilimab. The primary efficacy endpoint of this study is objective response rate (ORR), as assessed by investigators according to Response Evaluation Criteria in Solid Tumors (RECIST v1.1).

Criteria for eligibility:
Criteria:
Inclusion Criteria: 1. Age ≥ 18 years old and ≤ 75 years old; 2. Histologically or cytologically confirmed squamous cell lung cancer, imaging confirmed locally advanced or metastatic disease (unresectable or not eligible for definitive chemoradiotherapy, stage IIIB-IV); 3. According to the Response Evaluation Criteria in Solid Tumors (RECIST v1.1), there is at least one imaging measurable lesion; 4. Enough to provide quality control qualified tumor tissue or cell wax blocks to detect PD-L1 expression; 5. Have not received any systemic anti-tumor treatment for locally advanced or metastatic disease in the past; Exclusion Criteria: 1. The pathology is small cell lung cancer (SCLC), including lung cancer mixed with SCLC and non-small cell lung cancer (NSCLC); 2. The pathology is lung adenocarcinoma, including lung cancer mixed with lung adenocarcinoma and lung squamous cell carcinoma; 3. EGFR gene sensitive mutation or ALK fusion positive or ROS1 fusion positive; 4. Previously received the following therapies: anti-PD-1, anti-PD-L1 or anti-PD-L2 drugs or another drug that stimulates or synergistically inhibits T cell receptors; 5. Pregnant or lactating women;

Gender: All

Minimum age: 18 Years

Maximum age: 75 Years

Healthy volunteers: No

Locations:

Facility:
Name: West China Hospital of Sichuan University

Address:
City: Chengdu
Zip: 610044
Country: China

Status: Recruiting

Contact:
Last name: Jianxin Xue

Phone: +86 189 8225 1798
Email: killercell@163.com

Start date: March 1, 2024

Completion date: February 28, 2027

Lead sponsor:
Agency: Sichuan University
Agency class: Other

Collaborator:
Agency: Innovent Biologics (Suzhou) Co. Ltd.
Agency class: Industry

Source: Sichuan University

Record processing date: ClinicalTrials.gov processed this data on November 12, 2024

Source: ClinicalTrials.gov page: https://clinicaltrials.gov/ct2/show/NCT06121505

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