Histidine and Immunotherapy Response in Colorectal Cancer
Mechanistic Study of Histidine-mediated Regulation of Antigen Presentation in Colorectal Cancer to Enhance Sensitivity to Immunotherapy
Studie Overzicht
Toestand
Toestand
Conditie
Conditie
Interventie / Behandeling
Interventie / Behandeling
Studietype
Studietype
Inschrijving (Geschat)
Inschrijving
Contacten en locaties
Studiecontact
Studiecontact
- Naam: Wan Du, M.D.
- Telefoonnummer: (86)13788972966
- E-mail: duwan2017@126.com
Studie Contact Back-up
- Naam: Youli Chen
- Telefoonnummer: (86)13656503169
- E-mail: chenylpetri@gmail.com
Deelname Criteria
Geschiktheidscriteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
- Volwassen
- Oudere volwassene
Accepteert gezonde vrijwilligers
Bemonsteringsmethode
Studie Bevolking
Beschrijving
Inclusion Criteria:
- Participants aged ≥18 years and ≤100 years.
- Patients pathologically diagnosed with colorectal cancer based on colonoscopy or surgical specimens and biopsy examination; or patients who previously received PD-1 monoclonal antibody immunotherapy for colorectal cancer.
Exclusion Criteria:
- Age <18 years.
- Presence of poorly controlled metabolic diseases, including hypertension, diabetes mellitus, hyperlipidemia, hyperuricemia, or hyperthyroidism.
- Presence of other severe gastrointestinal diseases, including inflammatory bowel disease, ischemic bowel disease, familial adenomatous polyposis, liver cirrhosis, MUTYH-associated polyposis (MAP), Lynch syndrome (LS), or Peutz-Jeghers syndrome (PJS).
- History of other malignant tumors, or pathological diagnosis of colorectal inflammatory polyps, hyperplastic polyps, neuroendocrine tumors, neuroendocrine carcinoma, or mixed neuroendocrine-non-neuroendocrine neoplasms.
- History of neurological or psychiatric disorders, such as epilepsy or depression.
- Unqualified specimens, including hemolyzed serum samples or tissue samples that were not properly preserved in time.
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
Aantal groepen / cohorten
Cohorten en interventies
Groep / CohortGroep / Cohort |
Interventie / BehandelingInterventie / Behandeling |
|---|---|
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Colorectal cancer patients
Patients with pathologically confirmed colorectal cancer.
Colorectal tumor and adjacent normal tissue specimens will be analyzed for SLC15A3 expression, or serum specimen will be analyzed for histidine-related metabolites, or whole blood samples will be analyzed for peripheral blood immune cell functions.
|
Formalin-fixed paraffin-embedded (FFPE) colorectal tumor and adjacent normal tissue specimens will be analyzed for SLC15A3 expression by immunohistochemistry and/or immunofluorescence.
Peripheral blood mononuclear cells (PBMCs) will be separated from whole blood samples and assessed for immune cell phenotype and functional markers by flow cytometry.
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ICB responders
Patients with colorectal cancer who previously received PD-1 immune checkpoint blockade and achieved a clinical response.
Tumor tissue will be analyzed for SLC15A3 expression, and serum specimen will be analyzed for histidine-related metabolites.
|
Formalin-fixed paraffin-embedded (FFPE) colorectal tumor and adjacent normal tissue specimens will be analyzed for SLC15A3 expression by immunohistochemistry and/or immunofluorescence.
Serum specimens from patients with colorectal cancer will be analyzed for histidine and related metabolites and selected biomarkers by metabolomics and/or ELISA.
|
|
ICB non-responders
Patients with colorectal cancer who previously received PD-1 immune checkpoint blockade and did not achieve a clinical response.
Tumor tissue will be analyzed for SLC15A3 expression, and serum specimen will be analyzed for histidine-related metabolites.
|
Formalin-fixed paraffin-embedded (FFPE) colorectal tumor and adjacent normal tissue specimens will be analyzed for SLC15A3 expression by immunohistochemistry and/or immunofluorescence.
Serum specimens from patients with colorectal cancer will be analyzed for histidine and related metabolites and selected biomarkers by metabolomics and/or ELISA.
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Wat meet het onderzoek?
Primaire uitkomstmaten
Primaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
|
SLC15A3 expression
Tijdsspanne: Baseline archival tissue specimen from surgical resection or diagnostic biopsy.
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SLC15A3 expression measured by immunohistochemistry (IHC) or immunofluorescence in formalin-fixed paraffin-embedded colorectal tumor and adjacent normal tissue specimens.
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Baseline archival tissue specimen from surgical resection or diagnostic biopsy.
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Serum histidine concentration
Tijdsspanne: Baseline and after 9 weeks (one round of treatment).
|
Serum histidine concentration measured using liquid chromatography-mass spectrometry (LC-MS) in serum samples collected before treatment initiation and, where available, after 9 weeks (one round of treatment).
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Baseline and after 9 weeks (one round of treatment).
|
Secundaire uitkomstmaten
Secundaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
|
Progression-free survival
Tijdsspanne: 5 years.
|
Progression-free survival, defined as the time from initial diagnosis or treatment initiation to documented disease progression, recurrence, or death from any cause, whichever occurs first, in patients with colorectal cancer with available follow-up information.
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5 years.
|
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Overall survival
Tijdsspanne: 5 years.
|
Overall survival, defined as the time from initial diagnosis or treatment initiation to death from any cause in patients with colorectal cancer with available follow-up information.
|
5 years.
|
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Percentage of IFN-gamma-positive T cells
Tijdsspanne: Baseline and after 9 weeks (one round of treatment).
|
Peripheral blood mononuclear cells (PBMCs) from archived blood samples of patients with colorectal cancer will be assessed by flow cytometry to evaluate the percentage of IFN-gamma-positive T cells as a T cell effector function marker.
Samples collected before treatment initiation and, where available, after 9 weeks (one round of treatment) will be analyzed.
|
Baseline and after 9 weeks (one round of treatment).
|
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Percentage of granzyme B-positive T cells
Tijdsspanne: Baseline and after 9 weeks (one round of treatment).
|
Peripheral blood mononuclear cells (PBMCs) from archived blood samples of patients with colorectal cancer will be assessed by flow cytometry to evaluate the percentage of granzyme B-positive T cells as a T cell effector function marker.
Samples collected before treatment initiation and, where available, after 9 weeks (one round of treatment) will be analyzed.
|
Baseline and after 9 weeks (one round of treatment).
|
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Clinicopathological characteristics
Tijdsspanne: Baseline at initial diagnosis or tissue collection.
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Clinicopathological characteristics of patients with colorectal cancer, including age, sex, tumor location, AJCC TNM stage, and histological grade, extracted from available medical records.
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Baseline at initial diagnosis or tissue collection.
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Medewerkers en onderzoekers
Sponsor
Sponsor
Onderzoekers
Onderzoekers
- Hoofdonderzoeker: Jing-Yuan Fang, M.D., Division of Gastroenterology and Hepatology, NHC Key Laboratory of Digestive Diseases, Renji Hospital, School of Medicine, Shanghai Jiao Tong University
Studie record data
Bestudeer belangrijke data
Studie start (Geschat)
Studie start
Primaire voltooiing (Geschat)
Primaire voltooiing
Studie voltooiing (Geschat)
Studie voltooiing
Studieregistratiedata
Eerst ingediend
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Werkelijk)
Eerst geplaatst
Updates van studierecords
Laatste update geplaatst (Werkelijk)
Laatste update geplaatst
Laatste update ingediend die voldeed aan QC-criteria
Laatste update ingediend die voldeed aan QC-criteria
Laatst geverifieerd
Laatst geverifieerd
Meer informatie
Termen gerelateerd aan deze studie
Trefwoorden
Aanvullende relevante MeSH-voorwaarden
- Neoplasmata per site
- Neoplasmata
- Darmziekten
- Gastro-intestinale neoplasmata
- Neoplasmata van het spijsverteringsstelsel
- Ziekten van het spijsverteringsstelsel
- Gastro-intestinale aandoeningen
- Intestinale neoplasmata
- Rectale ziekten
- Colon Ziekten
- Colorectale neoplasmata
- Onderzoekstechnieken
- Klinische laboratoriumtechnieken
- Diagnostische technieken en procedures
- Diagnose
- Cytologische technieken
- Chemie -technieken, analytisch
- Celscheiding
- Histocytochemie
- Histologische technieken
- Immunologische technieken
- Fotometrie
- Fluorometrie
- Luminescerende metingen
- Cytofotometrie
- Moleculaire sondetechnieken
- Immunoenzymtechnieken
- Immunoassay
- Immunosorbent Technieken
- Immunohistochemie
- Flowcytometrie
- Enzyme-Linked Immunosorbent Assay
- Fluorescent Antibody Technique
Andere studie-ID-nummers
Andere studie-ID-nummers
- KY2025-053-B
Informatie over medicijnen en apparaten, studiedocumenten
Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel
Bestudeert een door de Amerikaanse FDA gereguleerd apparaatproduct
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