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Gastric CancerNCT05668910

Gastric Cancer Early Detection by Multi-dimensional Analysis of cfDNA

An observational study of Gastric Cancer, run by GeneCast Biotechnology Co., Ltd. at 1 site in China.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

To facilitate the early gastric cancer diagnosis, an assay based on assessing large-scale methylation and fragmentation profiles of the plasma cell free (cfDNA) will be developed and validated. Read more about this study

Who is it for?
Any ageHealthy volunteers can take part
Conditions the study is for
Gastric Cancer
What is being tested?
whole genomic methylation and fragmentation profile analysis of cfDNA
How many people
360 participants
Where
1 siteChina
Study dates
1 Sep 2022to 31 Mar 2024
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages Any age
  • All sexes
  • Healthy volunteers accepted
  • Child, Adult, Older adult

Study population: This study will enroll about 360 individuals who receive gastroscopy in The First Affiliated Hospital of Air Force Military Medical University (Xijing Hospital), Xi'an, Shaanxi province, China. Two groups will be formed based on gastroscopy results, malignant group and non-malignant group. The malignant group includes patients diagnosed with high grade Intraepithelial neoplasia or GC (> 50% of patients in stage I and II) while the non-malignant group contains healthy individuals and patients with non-atrophic gastritis, gastric ulcer, gastric polyp or other benign gastric diseases.

Who may be able to join

  • Complete clinical info;
  • Patients self-agree to join the study and with signed patient consent and good compliance.
  • The specific inclusion criteria for subjects to be included in the malignant group:
  • According to the definition of AJCC's 8th Edition Cancer Staging Manual, patients with gastric adenocarcinoma confirmed by histopathology and with pathological stages of stage I-IV, including patients with esophageal gastric junction adenocarcinoma (EGJ);
  • Has not previously received any local or systematic anti-tumor treatment.

Who cannot join

  • Diagnosed previously with any kind of malignant tumor;
  • Have received total or partial gastrectomy;
  • Have received bone marrow or organ transplantation;
  • Have received blood transfusion in the past 6 months;
  • Incomplete clinical info or unqualified to participate in the study.

Trial locations and contacts

1 site in 1 country.

China1 site, 1 recruiting
  • The First Affiliated Hospital of Air Force Military Medical University (Xijing Hospital)

    Xi'an, Shaanxi

    Gang Ji, 13572152581, Jigang@fmmu.edu.cn

    Recruiting

Other trials in China

About this study

Official title: Development and Validation of a Blood-based Assay for Gastric Cancer Early Detection Using Multi-dimensional Analysis of Cell Free DNA Whole Methylome Sequencing-Protocol for an Observational, Case-control Study

To facilitate the early gastric cancer diagnosis, an assay based on assessing large-scale methylation and fragmentation profiles of the plasma cell free (cfDNA) will be developed and validated.

Read the detailed description

Cancer-related features in cell-free DNA (cfDNA) fragments have gradually been identified and play essential roles for non-invasive early cancer detection. Integrated analysis of several cfDNA features have proven to achieve enhanced detection sensitivity as compared to single feature.

This study aims to develop and validate a novel blood-based whole methylome sequencing followed with a multi-dimensional model to analyze several features of cfDNA for GC early detection. Specifically, blood samples will be prospectively collected before gastroscopy. Cases and controls will be randomly divided into a training and a testing dataset at a ratio of 2:1. Plasma cfDNA will be isolated and extracted, followed with a bisulfite-free low-depth whole methylome sequencing. A multi-dimensional model named THorough Epigenetic Marker Integration Solution (THEMIS) including methylation, fragmentation, and chromosomal copy number alternation will be constructed in the training dataset. The performance of the model in differentiating cancer patients from non-cancer controls will then be evaluated in the testing dataset.

Conditions
Gastric Cancer
Being tested
whole genomic methylation and fragmentation profile analysis of cfDNA
Medical subject headings
Stomach Neoplasms

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • whole genomic methylation and fragmentation profile analysis of cfDNAGenetic

    The assay for gastric cancer early detection will be built based on low-depth methylone sequencing followed with a multi-dimensional model construction with analysing several features such as methylation, fragmentation, and chromosomal copy number alternation.

Study groups in NCT05668910
Study groupRoleWhat they receive
malignant grouppatients diagnosed with high grade Intraepithelial neoplasia or GC (> 50% of patients in stage I and II)
Receives: Genetic: whole genomic methylation and fragmentation profile analysis of cfDNA
non-malignant grouphealthy individuals and patients with non-atrophic gastritis, gastric ulcer, gastric polyp or other benign gastric diseases
Receives: Genetic: whole genomic methylation and fragmentation profile analysis of cfDNA

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. The performance of each single feature and the ensemble model with integrated features for early GC detection

    The efficacy of each single feature-based model and the ensemble model comparing with pathologic diagnostic results, the gold standard, and gastroscope diagnosis, including sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV).

    Measured: 18 months

  2. The performance of each single feature and the ensemble model with integrated features for early GC detection in each clinical stage

    The efficacy of each single feature-based model and the ensemble model comparing with pathologic diagnostic results, the gold standard, and gastroscope diagnosis, including sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV).

    Measured: 18 months

Secondary outcomes (1)
  1. The performance of the ensemble model in combination of possible GC related biomarkers such as PG, G17, and/or Hp levels for early GC detection

    The efficacy of the integrated model comparing with pathologic diagnostic results, the gold standard, and gastroscope diagnosis, including sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV).

    Measured: 18 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted30 Dec 2022
  2. Study start1 Sep 2022
  3. Primary completion31 Mar 2024 (estimated)
  4. Study completion31 Mar 2024 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Case-control
Time perspective
Prospective
Enrolment
360 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05668910
Sponsor's protocol ID
D-P200110-MCCGW-HP-7-GC
Status last verified
Nov 2022
First submitted
12 Dec 2022
Last updated
30 Dec 2022
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Publications

  • Han Y, Wei J, Wang W, Gao R, Shen N, Song X, Ni Y, Li Y, Xu LD, Chen W, Li X. Multidimensional Analysis of a Cell-Free DNA Whole Methylome Sequencing Assay for Early Detection of Gastric Cancer: Protocol for an Observational Case-Control Study. JMIR Res Protoc. 2023 Sep 20;12:e48247. doi: 10.2196/48247.

    PubMed 37728978

Questions about this trial

What is this clinical trial studying?

An observational study of Gastric Cancer, run by GeneCast Biotechnology Co., Ltd. at 1 site in China.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: status not confirmed, as of the sponsor's last update on 30 Dec 2022. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in China. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

Contact Ning Shen (400-080-0660, shen.ning1@genecast.com.cn), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

The performance of each single feature and the ensemble model with integrated features for early GC detection (time frame: 18 months). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT05668910, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 30 Dec 2022.

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