Immune Checkpoints in Intraabdominal Ascites Fluid

Sponsor
Istanbul Training and Research Hospital (Other)
Overall Status
Recruiting
CT.gov ID
NCT04540159
Collaborator
(none)
80
1
10
8

Study Details

Study Description

Brief Summary

Colorectal cancers are the third most common type of cancer in the world. Peritoneal carcinomatosis and intraabdominal acid development occur in advanced stages of colorectal cancers.

It is known that the immune system plays an important role in tumor development or tumor eradication. Among the mechanisms of escape from the immune system, changes in the tumor microenvironment play an important role.

Immune checkpoints are molecules that have become popular especially after the Nobel Prize in 2018, and are important in revealing the relationship between cancer and the immune system.

In our study, it is aimed to evaluate whether there is a difference in intraabdominal ascites fluid immune checkpoints level in patients with advanced colorectal cancer patients compared to patients without malignancy.

Condition or Disease Intervention/Treatment Phase
  • Diagnostic Test: Flow-cytometric analysis

Detailed Description

Colorectal cancers are the third most common type of cancer in the world. Peritoneal carcinomatosis and intraabdominal acid development occur in advanced stages of colorectal cancers.

It is known that the immune system plays an important role in tumor development or tumor eradication. The role of the immune system in colorectal cancers has been demonstrated with the effects of tumor-infiltrating lymphocytes (TIL) and immune control points on TILs or immune control point ligands on patient survival, especially in recent studies. Studies in the literature usually include immunological examinations of patient blood or tumor tissue.

Immune checkpoints are molecules that have become popular especially after the Nobel Prize in 2018, and are important in revealing the relationship between cancer and the immune system. Programmed Cell Death Protein-1 (PD-1) and its ligand, PD-L1, is an immune checkpoint that acts by blocking T cell receptor signal transduction and auxiliary stimuli. T cell immunoglobulin and mucin domain 3 (TIM-3) are mostly expressed on T cells, Tregs, dendritic cells, B cells, macrophages, natural killer cells (NK) and mast cells that produce interferon-(10). Impairment in regulation of TIM-3 expression has been associated with autoimmune diseases. High TIM-3 expression is associated with suppression of T cell responses and T cell depletion, which is characterized by loss of T cell functions during chronic viral infections and during tumor development. With the clinical success of immune checkpoint inhibitors such as ipilimumab and nivolumab for melanoma and lung cancer, immune checkpoints have attracted more attention.

There are many publications in the literature evaluating immunological markers from ascites fluid samples for various reasons. In these studies, T and B cell subtypes were examined from ascites fluid samples taken from patients with ascites, especially ovarian cancer and liver cirrhosis. In the only study on gastrointestinal cancers, immunophenotyping was performed in intraabdominal ascites and blood in 22 advanced gastrointestinal tumor patients and some cell subgroups were associated with worse clinical outcome. In the literature, there is no study on cytokine analysis from intra-abdominal ascites fluids specific to colorectal cancer.

In our study, it is aimed to evaluate whether there is a difference in intraabdominal ascites fluid immune checkpoints level in patients with advanced colorectal cancer patients compared to patients without malignancy.

Study Design

Study Type:
Observational
Anticipated Enrollment :
80 participants
Observational Model:
Case-Control
Time Perspective:
Prospective
Official Title:
Measurement of Immune Checkpoints in Intraabdominal Ascites Fluid in Patients With Advanced Colorectal Cancer
Actual Study Start Date :
Jan 1, 2021
Anticipated Primary Completion Date :
Sep 1, 2021
Anticipated Study Completion Date :
Nov 1, 2021

Arms and Interventions

Arm Intervention/Treatment
Case

Advanced stage Colorectal cancer patients with intraabdominal ascites

Diagnostic Test: Flow-cytometric analysis
Measuring the level of sCD25 (IL-2Ra), 4-1BB, B7.2 (CD86), Free Active TGF-β1, CTLA-4, PD-L1, PD-1, Tim-3, LAG-3, Galectin-9 in the intraabdominal ascites

Control

Liver cirrhosis and congestive heart failure patients with intraabdominal ascites

Diagnostic Test: Flow-cytometric analysis
Measuring the level of sCD25 (IL-2Ra), 4-1BB, B7.2 (CD86), Free Active TGF-β1, CTLA-4, PD-L1, PD-1, Tim-3, LAG-3, Galectin-9 in the intraabdominal ascites

Outcome Measures

Primary Outcome Measures

  1. Immune Checkpoint levels [4 months]

    Measuring the level of sCD25 (IL-2Ra), 4-1BB, B7.2 (CD86), Free Active TGF-β1, CTLA-4, PD-L1, PD-1, Tim-3, LAG-3, Galectin-9 in the intraabdominal ascites

Eligibility Criteria

Criteria

Ages Eligible for Study:
18 Years to 80 Years
Sexes Eligible for Study:
All
Accepts Healthy Volunteers:
No
Inclusion Criteria:
  • Advanced stage colorectal cancer patients with intraabdominal ascites
Exclusion Criteria:
  • Patients who have cancer other than colorectal cancer

  • Patients with peritonitis

  • Pregnant women

  • HIV (+) patients

Contacts and Locations

Locations

Site City State Country Postal Code
1 Ufuk Oguz Idiz Istanbul Turkey 34371

Sponsors and Collaborators

  • Istanbul Training and Research Hospital

Investigators

  • Principal Investigator: Ufuk Oguz Idiz, Assoc.Prof., Istanbul Training and Research Hospital

Study Documents (Full-Text)

None provided.

More Information

Publications

Responsible Party:
Ufuk Oguz Idiz, Assoc. Prof. MD, Istanbul Training and Research Hospital
ClinicalTrials.gov Identifier:
NCT04540159
Other Study ID Numbers:
  • Colorectal Checkpoints
First Posted:
Sep 7, 2020
Last Update Posted:
Jul 27, 2021
Last Verified:
Jul 1, 2021
Individual Participant Data (IPD) Sharing Statement:
Undecided
Plan to Share IPD:
Undecided
Studies a U.S. FDA-regulated Drug Product:
No
Studies a U.S. FDA-regulated Device Product:
No
Keywords provided by Ufuk Oguz Idiz, Assoc. Prof. MD, Istanbul Training and Research Hospital
Additional relevant MeSH terms:

Study Results

No Results Posted as of Jul 27, 2021