Clinical Study of Gastric Cancer, Colorectal Cancer and Bladder Cancer Based on Liquid Biopsy

Gastric cancer and colorectal cancer are common gastrointestinal malignancies in the world.Early cancer generally has no obvious symptoms. Endoscopy is the "gold standard"for the diagnosis of gastric cancer and colorectal cancer.gastric cancer and colorectal cancer treatment mainly includes surgery and medication.Compared with traditional diagnosis and treatment methods, the application of gene detection technology, especially high-throughput sequencing technology (NGS) in tumor diagnosis and treatment, performs multi-dimensional and multi-target detection of cancer-related genes, which can quickly and accurately determine the target gene mutations Morphology and expression differences, so as to provide personalized guidance to patients in terms of medication, treatment or prognosis evaluation, which can save a lot of time and treatment costs, and improve the overall treatment effect and patient quality of life.

Cystoscopy and biopsy sampling pathological testing are the gold standard for bladder cancer diagnosis, and have been widely used in clinical diagnosis and prognosis judgment. However, cystoscopy is cumbersome, expensive, and often causes pain to the patients under test. At present, the main clinical non-invasive detection technique for bladder cancer is still the cytological examination of urinary tract bladder cells in urine, and its sensitivity and specificity are not good, especially for the diagnosis of early lower grade bladder cancer.For bladder cancer, tumor tissue (puncture biopsy or surgical resection) DNA, urine ctDNA, urinary tract exfoliated cell DNA and peripheral blood ctDNA can be used for genetic testing, but the consistency of the genetic testing results of these four types of samples has not been verified, especially There is no systematic evaluation of the guidance effect of non-invasive gene detection of free tumor DNA and urinary tract shed cell DNA in the diagnosis and treatment of bladder cancer.The corresponding relationship between the significant mutation genes contained in the DNA derived from bladder urinary tract cancer and the various types and stages of bladder cancer is not clear.

Study Overview

Study Type

Observational

Enrollment (Anticipated)

3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Locations

    • Jiangsu
      • Nanjing, Jiangsu, China, 210029
        • Recruiting
        • First Affiliated Hospital of Nanjing Medical Universit
        • Contact:

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Probability Sample

Study Population

Gastric cancer, colorectal cancer or bladder cancer patients in Jiangsu Provincial People's Hospital

Description

Inclusion Criteria:

  • Patients who are scheduled for gastric tumor, colorectal tumor or bladder tumor resection Signed informed consent

Exclusion Criteria:

  • the vital signs are not stable unconscious unwilling to cooperate

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Observational Models: Cohort
  • Time Perspectives: Prospective

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
Gastric Cancer

DNA extraction of gastric tumor tissues and high-throughput sequencing of small panels were performed, and the relationship between the mutation spectrum of each sample and the corresponding patient clinical data (staging) was analyzed.

DNA extraction of tumer tissue samples and blood sample and high-throughput sequencing of small panels,DNA extraction and small panel sequencing were performed for the two types of samples of the patients respectively, and the DNA sequencing results of the two types of samples were compared, and the clinical data of the corresponding patients were referenced to evaluate the consistency of the results of peripheral blood ctDNA and tissue gDNA for the gene detection of gastric tumor.

DNA extraction of colorectal tumor tissues and high-throughput sequencing of small panels were performed, and the relationship between the mutation spectrum of each sample and the corresponding patient clinical data (staging) was analyzed.

DNA extraction of tumer tissue samples and blood sample and high-throughput sequencing of small panels,DNA extraction and small panel sequencing were performed for the two types of samples of the patients respectively, and the DNA sequencing results of the two types of samples were compared, and the clinical data of the corresponding patients were referenced to evaluate the consistency of the results of peripheral blood ctDNA and tissue gDNA for the gene detection of colorectal tumor.

DNA extraction of bladder tumor tissues and high-throughput sequencing of small panels were performed, and the relationship between the mutation spectrum of each sample and the corresponding patient clinical data (staging) was analyzed.

DNA extraction of tumer tissue samples ,urine sample,blood sample and high-throughput sequencing of small panels,DNA extraction and small panel sequencing were performed for the three types of samples of the patients respectively, and the DNA sequencing results of the three types of samples were compared, and the clinical data of the corresponding patients were referenced to evaluate the consistency of the results of peripheral blood ctDNA ,urine ctDNAand tissue gDNA for the gene detection of bladder tumor.

Colorectal Cancer

DNA extraction of gastric tumor tissues and high-throughput sequencing of small panels were performed, and the relationship between the mutation spectrum of each sample and the corresponding patient clinical data (staging) was analyzed.

DNA extraction of tumer tissue samples and blood sample and high-throughput sequencing of small panels,DNA extraction and small panel sequencing were performed for the two types of samples of the patients respectively, and the DNA sequencing results of the two types of samples were compared, and the clinical data of the corresponding patients were referenced to evaluate the consistency of the results of peripheral blood ctDNA and tissue gDNA for the gene detection of gastric tumor.

DNA extraction of colorectal tumor tissues and high-throughput sequencing of small panels were performed, and the relationship between the mutation spectrum of each sample and the corresponding patient clinical data (staging) was analyzed.

DNA extraction of tumer tissue samples and blood sample and high-throughput sequencing of small panels,DNA extraction and small panel sequencing were performed for the two types of samples of the patients respectively, and the DNA sequencing results of the two types of samples were compared, and the clinical data of the corresponding patients were referenced to evaluate the consistency of the results of peripheral blood ctDNA and tissue gDNA for the gene detection of colorectal tumor.

DNA extraction of bladder tumor tissues and high-throughput sequencing of small panels were performed, and the relationship between the mutation spectrum of each sample and the corresponding patient clinical data (staging) was analyzed.

DNA extraction of tumer tissue samples ,urine sample,blood sample and high-throughput sequencing of small panels,DNA extraction and small panel sequencing were performed for the three types of samples of the patients respectively, and the DNA sequencing results of the three types of samples were compared, and the clinical data of the corresponding patients were referenced to evaluate the consistency of the results of peripheral blood ctDNA ,urine ctDNAand tissue gDNA for the gene detection of bladder tumor.

Bladder Cancer

DNA extraction of gastric tumor tissues and high-throughput sequencing of small panels were performed, and the relationship between the mutation spectrum of each sample and the corresponding patient clinical data (staging) was analyzed.

DNA extraction of tumer tissue samples and blood sample and high-throughput sequencing of small panels,DNA extraction and small panel sequencing were performed for the two types of samples of the patients respectively, and the DNA sequencing results of the two types of samples were compared, and the clinical data of the corresponding patients were referenced to evaluate the consistency of the results of peripheral blood ctDNA and tissue gDNA for the gene detection of gastric tumor.

DNA extraction of colorectal tumor tissues and high-throughput sequencing of small panels were performed, and the relationship between the mutation spectrum of each sample and the corresponding patient clinical data (staging) was analyzed.

DNA extraction of tumer tissue samples and blood sample and high-throughput sequencing of small panels,DNA extraction and small panel sequencing were performed for the two types of samples of the patients respectively, and the DNA sequencing results of the two types of samples were compared, and the clinical data of the corresponding patients were referenced to evaluate the consistency of the results of peripheral blood ctDNA and tissue gDNA for the gene detection of colorectal tumor.

DNA extraction of bladder tumor tissues and high-throughput sequencing of small panels were performed, and the relationship between the mutation spectrum of each sample and the corresponding patient clinical data (staging) was analyzed.

DNA extraction of tumer tissue samples ,urine sample,blood sample and high-throughput sequencing of small panels,DNA extraction and small panel sequencing were performed for the three types of samples of the patients respectively, and the DNA sequencing results of the three types of samples were compared, and the clinical data of the corresponding patients were referenced to evaluate the consistency of the results of peripheral blood ctDNA ,urine ctDNAand tissue gDNA for the gene detection of bladder tumor.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
DNA extraction of tumer tissue samples and high-throughput sequencing
Time Frame: 2019.9-2019.6
Preliminary exploration of tumor related mutation spectrum in different patients by gene sequencing
2019.9-2019.6

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
DNA extraction of tumer tissue samples, blood tissue and urine samples and high-throughput sequencing
Time Frame: 2020.7-2020.12

To evaluate the consistency of peripheral blood ctDNA and tissue gDNA in gene detection of gastric cancer and colorectal cancer.

To evaluate the consistency of peripheral blood ctDNA , urine ctDNA and tissue gDNA in gene detection of bladder cancer.

2020.7-2020.12

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

September 1, 2019

Primary Completion (Anticipated)

December 31, 2020

Study Completion (Anticipated)

December 31, 2020

Study Registration Dates

First Submitted

May 8, 2020

First Submitted That Met QC Criteria

May 8, 2020

First Posted (Actual)

May 12, 2020

Study Record Updates

Last Update Posted (Actual)

May 12, 2020

Last Update Submitted That Met QC Criteria

May 8, 2020

Last Verified

May 1, 2020

More Information

Terms related to this study

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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