Single-cell Sequencing of BLF to Guide the Treatment of Radiation Pneumonitis or Immune Checkpoint Inhibitor Pneumonitis

Study Overview
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Brief Summary
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A multicenter, exploratory clinical research, to map the radiation or immune checkpoint inhibitor pneumonitis in patients with alveolar lavage single-celled map. Find out the pathogenesis and prevention strategies of radiation or immune checkpoint inhibitor pneumonitis. Specific treatment is given based on the recommendation of the treatment guidelines for radiation or immune checkpoint inhibitor pneumonitis and the results of single cell sequencing, which will become a new technology for clinical application.

Detailed Description
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This study is a multicenter, exploratory clinical research, to map the radiation or immune checkpoint inhibitor pneumonitis in patients with alveolar lavage single-celled map. Find out the pathogenesis and prevention strategies of radiation or immune checkpoint inhibitor pneumonitis. Specific treatment is given based on the recommendation of the treatment guidelines for radiation or immune checkpoint inhibitor pneumonitis and the results of single cell sequencing, which will become a new technology for clinical application.

Official Title
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Single-cell Sequencing of Bronchoalveolar Lavage Fluid to Guide the Treatment of Radiation Pneumonitis or Immune Checkpoint Inhibitor Pneumonitis

Conditions
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Pneumonitis

Intervention / Treatment
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* Genetic: single-cell sequencing


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Informed consent has been signed, and according to the judgment of the investigator, the patient can comply with the study protocol and sign the written informed consent; NSCLC patients who have been clinically diagnosed with RP or CIP after histopathologically confirmed radiotherapy or immunocheckpoint inhibitor treatment and have not received glucocorticoid or other drugs. ≥18 years old, less than 75 years old; ECOG PS score 0-3 in the Eastern Tumor Collaboration group; Patients without contraindications to alveolar lavage; Exclusion Criteria: Poor patient compliance and violation of test regulations; Liver and kidney dysfunction, such as myocardial infarction, angina pectoris, liver transaminase significantly increased; Had any medical condition requiring systemic treatment with corticosteroids or other immunosuppressive drugs within 14 days prior to enrollment; Severe infection occurred within 4 weeks prior to enrollment, including but not limited to hospitalization due to infection complications, bacteremia or severe pneumonia; Severe chronic or active infections (including tuberculosis infection) requiring systemic (oral or intravenous) antibiotic treatment within 14 days prior to enrollment; Untreated patients with chronic hepatitis B, HBV carriers with HBV DNA≥ 500 IU/mL, or patients with active hepatitis C virus (HCV) should be excluded. Note: Non-active hepatitis B, surface antigen (HBsAg) carriers, treated and stable hepatitis B carriers (HBV DNA & LT; 500 IU/mL), patients with cured hepatitis C could be enrolled; Known history of HIV infection; Received any other investigational drug or participated in any other clinical trial within 28 days.

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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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Non-Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Single-cell Sequencing of BLF to Guide the Treatment of Radiation Pneumonitis<br>Single-cell Sequencing of BLF is detected before treatment, and then patients will receive the treatment of Radiation Pneumonitis according to the result. | Genetic: single-cell sequencing<br>* Treatment is given according to the results of single-cell sequencing.<br>|
| Experimental: Single-cell Sequencing of BLF to Guide the Treatment of Immune Checkpoint Inhibitor Pneumonitis<br>Single-cell Sequencing of BLF is detected before treatment, and then patients will receive the treatment of Immune Checkpoint Inhibitor Pneumonitis according to the result. | Genetic: single-cell sequencing<br>* Treatment is given according to the results of single-cell sequencing.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Response rate | Tumor diameter is measured before and 8 weeks after treatment. Area alleviated by lung shadow or ground-glass changes more than 50% was significant; The alleviating area of lung shadow or ground-glass change was 20%   50%. Area alleviated by shadow or ground-glass changes in lung after treatment. 20% or worse than before treatment is ineffective. | 8 weeks | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Single-cell Sequencing, Radiation Pneumonitis, Immune Checkpoint Inhibitor Pneumonitis, Bronchoalveolar Lavage Fluid