18F-FDG PET/CT to Evaluate pD-1 Monoclonal Antibody With First-line Chemotherapy in Advanced NSCLC

Study Overview
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Brief Summary
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This study is a diagnostic study. Subjects were enrolled from clinical stage IIIB or IV NSCLC patients who received standard first-line chemotherapy combined with PD-1 monoclonal antibody immunotherapy and received 18F-FDG PET/CT imaging before treatment, after 2 courses of treatment, and at the time of disease progression.At the same time, the blood routine, liver and kidney function, inflammatory indexes and other laboratory data of the subjects participating in the study were collected. Based on 18F-FDG PET Ipercist standard and comprehensive laboratory indicators, the subjects were evaluated for tumor biological characteristics prediction and clinical staging, PD-1 immune efficacy monitoring and evaluation, tumor recurrence monitoring and re-staging. At the same time, the systemic immune response and immune-related adverse events during the treatment process were evaluated in order to establish a better evaluation standard and system for the comprehensive evaluation of PD-1 immunotherapy.This study plans to set the sample size as 50 cases.

Detailed Description
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This is a diagnostic study. Subjects were enrolled from clinical stage IIIB or IV NSCLC patients who received standard first-line chemotherapy combined with PD-1 monoclonal antibody immunotherapy and underwent 18F-FDG PET/CT imaging before treatment, after two lines of treatment and at the time of disease progression, while routine blood counts, liver and kidney function, inflammatory indices and other laboratory data were collected from subjects enrolled in the study. Based on standard 18F-FDG PET Ipercist and comprehensive laboratory indicators, subjects were evaluated for prediction of tumour biological characteristics and clinical staging, monitoring and evaluation of PD-1 immune efficacy, monitoring of tumour recurrence and restaging. At the same time, the systemic immune response and immune-related adverse events during the treatment process were evaluated to establish a better evaluation standard and system for the comprehensive evaluation of PD-1 immunotherapy.

Official Title
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A Prospective, Single-arm, Observational Clinical Study Based on 18F-FDG PET/CT to Evaluate the True Efficacy and Immune Response of PD-1 Monoclonal Antibody Combined With First-line Chemotherapy in Advanced Non-small Cell Lung Cancer

Conditions
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NSCLC

Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Adult patients (age 18 or above), gender unlimited; Pathological diagnosis of non-small cell lung cancer stage IIIB or above; Agree to carry out the standard first-line chemotherapy combined with immunosuppression established in this study; Consent to 18F-FDG PET/CT imaging and related laboratory examination before and during treatment; The patients themselves or their legal representatives are aware of this study and can sign the informed consent. Exclusion Criteria: Acute systemic diseases and electrolyte disturbances; Pregnant or lactating women; The patient or his legal representative is unable or unwilling to sign the informed consent.

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 80 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Sensitivity and specificity of 18F-FDG PET/CT for diagnosis the true efficacy and immune response of Non-small Cell Lung Cancer | PET/MR results will be compared with histopathological, clinical, laboratory, radiological evidence, and follow-up results. | 2 years | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Change after treatment | For patient after treatment, change of PET scan and clinical/radiological/histopathological indices. | 2 years |