Histidine and Immunotherapy Response in Colorectal Cancer
Mechanistic Study of Histidine-mediated Regulation of Antigen Presentation in Colorectal Cancer to Enhance Sensitivity to Immunotherapy
Panoramica dello studio
Stato
Stato
Condizioni
Condizioni
Intervento / Trattamento
Intervento / Trattamento
Tipo di studio
Tipo di studio
Iscrizione (Stimato)
Iscrizione
Contatti e Sedi
Contatto studio
Contatto studio
- Nome: Wan Du, M.D.
- Numero di telefono: (86)13788972966
- Email: duwan2017@126.com
Backup dei contatti dello studio
- Nome: Youli Chen
- Numero di telefono: (86)13656503169
- Email: chenylpetri@gmail.com
Criteri di partecipazione
Criteri di ammissibilità
Criteri di ammissibilità
Età idonea allo studio
- Adulto
- Adulto più anziano
Accetta volontari sani
Metodo di campionamento
Popolazione di studio
Descrizione
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.
Piano di studio
Come è strutturato lo studio?
Dettagli di progettazione
Numero di gruppi/coorti
Coorti e interventi
Gruppo / CoorteGruppo / Coorte |
Intervento / TrattamentoIntervento / Trattamento |
|---|---|
|
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.
|
|
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.
|
Cosa sta misurando lo studio?
Misure di risultato primarie
Misure di risultato primarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
|
SLC15A3 expression
Lasso di tempo: Baseline archival tissue specimen from surgical resection or diagnostic biopsy.
|
SLC15A3 expression measured by immunohistochemistry (IHC) or immunofluorescence in formalin-fixed paraffin-embedded colorectal tumor and adjacent normal tissue specimens.
|
Baseline archival tissue specimen from surgical resection or diagnostic biopsy.
|
|
Serum histidine concentration
Lasso di tempo: 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).
|
Baseline and after 9 weeks (one round of treatment).
|
Misure di risultato secondarie
Misure di risultato secondarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
|
Progression-free survival
Lasso di tempo: 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.
|
5 years.
|
|
Overall survival
Lasso di tempo: 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.
|
|
Percentage of IFN-gamma-positive T cells
Lasso di tempo: 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).
|
|
Percentage of granzyme B-positive T cells
Lasso di tempo: 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).
|
|
Clinicopathological characteristics
Lasso di tempo: Baseline at initial diagnosis or tissue collection.
|
Clinicopathological characteristics of patients with colorectal cancer, including age, sex, tumor location, AJCC TNM stage, and histological grade, extracted from available medical records.
|
Baseline at initial diagnosis or tissue collection.
|
Collaboratori e investigatori
Sponsor
Sponsor
Investigatori
Investigatori
- Investigatore principale: 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
Studiare le date dei record
Studia le date principali
Inizio studio (Stimato)
Inizio studio
Completamento primario (Stimato)
Completamento primario
Completamento dello studio (Stimato)
Completamento dello studio
Date di iscrizione allo studio
Primo inviato
Primo inviato
Primo inviato che soddisfa i criteri di controllo qualità
Primo inviato che soddisfa i criteri di controllo qualità
Primo Inserito (Effettivo)
Primo Inserito
Aggiornamenti dei record di studio
Ultimo aggiornamento pubblicato (Effettivo)
Ultimo aggiornamento pubblicato
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo verificato
Ultimo verificato
Maggiori informazioni
Termini relativi a questo studio
Parole chiave
Termini MeSH pertinenti aggiuntivi
- Neoplasie per sede
- Neoplasie
- Malattie intestinali
- Neoplasie gastrointestinali
- Neoplasie dell'apparato digerente
- Malattie dell'apparato digerente
- Malattie gastrointestinali
- Neoplasie intestinali
- Malattie del retto
- Malattie del colon
- Neoplasie colorettali
- Tecniche investigative
- Tecniche di laboratorio clinico
- Tecniche e procedure diagnostiche
- Diagnosi
- Tecniche citologiche
- Tecniche di chimica, analitiche
- Separazione cellulare
- Istocitochimica
- Tecniche istologiche
- Tecniche immunologiche
- Fotometria
- Fluorometria
- Misure luminescenti
- Citofotometria
- Tecniche di sonda molecolare
- Tecniche Immunoenzimatiche
- Immunodosaggio
- Tecniche Immunoassorbenti
- Immunoistochimica
- Citometria a flusso
- Saggio Immunoassorbente Legato ad Enzimi
- Fluorescent Antibody Technique
Altri numeri di identificazione dello studio
Altri numeri di identificazione dello studio
- KY2025-053-B
Informazioni su farmaci e dispositivi, documenti di studio
Studia un prodotto farmaceutico regolamentato dalla FDA degli Stati Uniti
Studia un dispositivo regolamentato dalla FDA degli Stati Uniti
Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .