Peripheral Blood CyTOF and Viral Imprinting in Postoperative Multiple Pulmonary Nodules
12 juni 2026 uppdaterad av: Jianxing He, The First Affiliated Hospital of Guangzhou Medical University
A Multicenter Prospective Cohort Study of Peripheral Blood CyTOF Immune Phenotyping and Viral Imprinting in Patients With Postoperative Multiple Pulmonary Nodules
This multicenter prospective cohort study will enroll adults who have undergone resection of a primary pulmonary nodule and have residual multiple pulmonary nodules or require routine postoperative pulmonary nodule follow-up.
During clinically indicated follow-up visits, a small amount of peripheral venous blood will be collected at the same time as routine blood draws for research CyTOF immune phenotyping and viral imprinting-related serology.
The study will not assign participants to treatment, change follow-up schedules, imaging, medication, surgery, or other clinical care.
Research laboratory results will not be returned to participants or entered into medical records.
The study will describe longitudinal peripheral immune-cell profiles and explore associations among T/B/NK cell phenotypes, T-cell differentiation and senescence/exhaustion markers, viral imprinting markers, and postoperative residual or new pulmonary nodule evolution.
Studieöversikt
Status
Har inte rekryterat ännu
Betingelser
Detaljerad beskrivning
The study is designed as a multicenter, prospective, non-randomized observational cohort.
Eligible participants will be identified in thoracic surgery clinics, inpatient services, or routine postoperative follow-up programs at participating centers.
After written informed consent, research blood samples of no more than 10 mL per time point will be collected together with routine clinical blood draws when available.
No additional clinic visit, imaging examination, treatment, surgery, drug, device, vaccination, or other clinical intervention will be scheduled for research purposes.
Peripheral blood will be analyzed using CyTOF mass cytometry to characterize major T-cell, B-cell, and NK-cell lineages, T-cell Naive/TCM/TEM/TEMRA differentiation, CD57-related senescence, activation markers, and immune checkpoint/exhaustion-related markers.
Viral imprinting-related serology may include CMV IgG, EBV VCA-IgG, EBV EBNA-IgG, HPV L1-related antibodies, or other tests available within the approved institutional laboratory scope.
Clinical and exposure data will be abstracted from routine records and study CRFs, including demographics, smoking and exposure history, relevant comorbidities, pulmonary nodule characteristics, pathology, imaging follow-up, and subsequent biopsy or surgery.
Analyses will describe longitudinal immune phenotypes and evaluate exploratory associations between immune reserve, immune senescence, viral imprinting markers, and pulmonary nodule stability, enlargement, new nodule development, imaging risk upgrade, repeat biopsy, or repeat surgery.
All research assay results are for group-level research only and will not be used to guide individual diagnosis, treatment, imaging interval, medication, or surgical decisions.
Studietyp
Observationell
Inskrivning (Beräknad)
200
Kontakter och platser
Det här avsnittet innehåller kontaktuppgifter för dem som genomför studien och information om var denna studie genomförs.
Studiekontakt
- Namn: Jianxing He
- Telefonnummer: 020-83062810
- E-post: jianxinghe@gzhmu.edu.cn
Deltagandekriterier
Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.
Urvalskriterier
Åldrar som är berättigade till studier
- Vuxen
- Äldre vuxen
Tar emot friska volontärer
Nej
Testmetod
Icke-sannolikhetsprov
Studera befolkning
Adults who have undergone surgical resection of a primary pulmonary nodule and have residual multiple pulmonary nodules or require routine postoperative pulmonary nodule follow-up at participating centers.
Participants will be identified from thoracic surgery clinics, inpatient services, and routine postoperative follow-up programs.
Eligible participants will provide written informed consent and will be followed according to usual clinical care; research blood samples and study data will be collected at clinically scheduled visits when routine blood draws and follow-up data are available.
Beskrivning
Inclusion Criteria:
Age 18 years or older, any sex. Primary pulmonary nodule has been surgically resected, with residual multiple pulmonary nodules or a need for pulmonary nodule-related routine postoperative follow-up.
Planned routine postoperative follow-up at a participating center and able to provide a research blood sample together with routine blood draw when clinically available.
Able to understand the study and willing to provide written informed consent before research blood sample collection.
Exclusion Criteria:
Investigator judges that the participant is unsuitable for additional small-volume blood collection, such as severe anemia, obvious coagulation abnormality, recent severe bleeding, or high risk of severe vasovagal reaction.
Acute severe infection, acute major organ dysfunction, or other condition that may substantially affect peripheral immune status and makes study participation unsuitable.
Current strong immunosuppressive therapy that may substantially affect peripheral immune status and cannot be adequately recorded or adjusted for in analysis.
Unable to complete informed consent or explicitly refuses use of research blood samples and related data for this study.
Any other condition that, in the investigator's judgment, makes participation inappropriate.
Studieplan
Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.
Hur är studien utformad?
Designdetaljer
Kohorter och interventioner
Grupp / Kohort |
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Postoperative Multiple Pulmonary Nodule Cohort
Adults with a resected primary pulmonary nodule who have residual multiple pulmonary nodules or require pulmonary nodule-related routine postoperative follow-up at participating centers.
Participants will be followed according to routine clinical care, and research samples/data will be collected at clinically scheduled visits.
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Vad mäter studien?
Primära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
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Change in percentage from baseline in peripheral blood CyTOF-defined immune phenotype parameters
Tidsram: Baseline and routine follow-up visits through 24 months
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Change in percentage of major immune-cell lineages and predefined T-cell differentiation/senescence/activation/exhaustion parameters, including CD4+ T cells, CD8+ T cells, B cells, NK cells, Naive/TCM/TEM/TEMRA subsets, CD57-related phenotypes, HLA-DR/CD38 activation markers, and PD-1/CTLA-4/TIM-3/TIGIT-related checkpoint expression, reported as percentages of parent populations and/or marker-positive frequencies.
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Baseline and routine follow-up visits through 24 months
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Sekundära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
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Percentage of participants with pulmonary nodule evolution events assessed by routine chest CT
Tidsram: Baseline through 24 months
|
percentage of participants with postoperative residual or new pulmonary nodule evolution, including stable disease, nodule enlargement, new nodule development, increase in solid component, imaging risk upgrade, repeat biopsy, or repeat surgery, as recorded in routine clinical imaging and medical records.
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Baseline through 24 months
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Blood draw-related adverse events
Tidsram: At each research blood collection visit from baseline through 24 months
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At each research blood collection visit from baseline through 24 months
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Percentage of participants with positive CMV IgG measured by institutional immunoassay
Tidsram: Baseline
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Baseline
|
|
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CyTOF assay completion rate
Tidsram: Baseline through 24 months
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Baseline through 24 months
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Research blood collection completion rate
Tidsram: Baseline through 24 months
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Baseline through 24 months
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Samarbetspartners och utredare
Det är här du hittar personer och organisationer som är involverade i denna studie.
Utredare
- Huvudutredare: Jianxing, The First Affiliated Hospital of Guangzhou Medical University
Studieavstämningsdatum
Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.
Studera stora datum
Studiestart (Beräknad)
1 juli 2026
Primärt slutförande (Beräknad)
1 december 2028
Avslutad studie (Beräknad)
1 december 2028
Studieregistreringsdatum
Först inskickad
2 juni 2026
Först inskickad som uppfyllde QC-kriterierna
12 juni 2026
Första postat (Faktisk)
15 juni 2026
Uppdateringar av studier
Senaste uppdatering publicerad (Faktisk)
15 juni 2026
Senaste inskickade uppdateringen som uppfyllde QC-kriterierna
12 juni 2026
Senast verifierad
1 maj 2026
Mer information
Termer relaterade till denna studie
Nyckelord
Ytterligare relevanta MeSH-villkor
Andra studie-ID-nummer
- GMUFAH-CyTOF-VAI-MC01
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