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Gastric CancerMENCA-GCNCT03425058

Molecular Evaluation of Neoadjuvant Chemotherapy for Locally Advanced Gastric Cancer

An observational study of Gastric Cancer, run by Peking University Cancer Hospital & Institute at 1 site in China.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Gastric cancer (GC) is a leading global health problem and is the third most common cause of cancer related death. Neoadjuvant chemoradiotherapy (nCRT) followed by surgery is the mainstay treatment for locally advanced gastric cancer, and variable degrees of tumor regression are observed after nCRT. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Gastric Cancer
How many people
80 participants
Where
1 siteChina
Study dates
22 Nov 2017to 1 Oct 2021
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 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: locally advanced gastric cancer patients without distant metastasis or peritoneal dissemination defined as cTNM stage of T4a/T4bN+M0

Who may be able to join

  • Ambulatory males or females, age ≥ 18 years
  • Karnofsky Performance Score (KPS) ≥70% or ECOG performance status: 0 or 1
  • Pathologically confirmed gastric adenocarcinoma (regardless of degree of histologic differentiation) or adenocarcinoma with signet-ring cell carcinoma , mucinous adenocarcinoma
  • Clinical Preoperative Stage cT4a/T4bN+M0 disease, including T4b、Bulky-N2, confirmed by CT/EUS
  • Adequate organ function as defined below: Hemoglobin ≥ 9 g/dl, Hematologic Absolute Neutrophil Count (ANC) ≥ 1.5*109/L, Platelets ≥ 100*109/L, Aspartate Aminotransferase(AST) and Alanine Aminotransferase(ALT)≤ 2.5×ULN, Alkaline pPosphatase( ALP) ≤ 2.5×ULN, Total Bilirubin (TBIL)≤ 1.5×ULN, Renal Serum Creatinine < 1.5 ULN, Serum Albumin ≥ 30g/l.
  • No serious concomitant disease that make survival period < 5 years
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  • No pleural effusion, no ascites exceeding the pelvis and no metastasis to the peritoneum, liver or other distant organs are confirmed by abdominal pelvic CT.
  • Planning to undergo gastric cancer D2 surgery after neoadjuvant chemotherapy
  • No prior antitumor treatment is allowed, including chemotherapy, radiotherapy, immune therapy or target therapy
  • No mechanical obstruction.
  • Negative serum or urine pregnant test within 7 days prior to randomization for child-bearing age women
  • Sexually active males or females willing to practice contraception during the study until 30 days after end of study.
  • Subjects has to voluntarily join the study and sign the Informed Consent Form for the study

Who cannot join

  • Female in pregnancy or lactation, or refuse to receive Contraception measures during chemotherapy
  • With distant metastasis or peritoneal dissemination diagnosed by CT/EUS
  • Underwent prior antitumor treatment, including chemotherapy, radiotherapy, immune therapy or target therapy
  • Serious uncontrolled intercurrent infections or other serious uncontrolled concomitant disease or condition that would make the subject inappropriate for study participation or any serious medical disorder that would interfere with the subject's safety (including current active hepatic, biliary, renal, respiratory disease, uncontrolled diabetes hypertension et al)
  • Clinically serious cardiac disease or pulmonary dysfunction.
  • Patients require emergency surgery with complications (bleeding, perforation and obstruction) caused by gastric cancer
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  • Other complications that cause no radical resection
  • Serious concomitant disease that make survival period < 5 years
  • No detection of CTCs or ctDNA in peripheral blood samples before NCT be enrolled in other clinical trials
  • Allergic reaction to S-1 or oxaliplatin
  • Abnormal GI tract function
  • Refuse to provide blood/tissue sample
  • Sexually active males or females refuse to practice contraception during the study until 30 days after end of study.
  • Person with no capacity (legally) or inappropriate to continue study treatment for ethics/medical reasons.
  • Other situation to be judged not adaptive to the study by investigators

Trial locations and contacts

1 site in 1 country.

China1 site
  • Beijing Cancer Hospital

    Beijing, Beijing Municipality, 10000

Other trials in China

About this study

Official title: Prospective Study of Molecular Evaluation of Neoadjuvant Chemotherapy for Locally Advanced Gastric Cancer

Gastric cancer (GC) is a leading global health problem and is the third most common cause of cancer related death. Neoadjuvant chemoradiotherapy (nCRT) followed by surgery is the mainstay treatment for locally advanced gastric cancer, and variable degrees of tumor regression are observed after nCRT. Treatment strategies, including close surveillance without immediate surgery, have been investigated to spare patients with complete tumor regression from potentially adverse outcomes of radical surgery. However, clinical and radiological assessment of treatment response does not deliver an ideal accuracy of patients identification with complete response. In the present study, we focused on the clinical courses of patients who have developed locally advanced gastric cancer, and investigated the potential clinical utility of the detection of deficient MMR(dMMR), microsatellite instability(MSI) status and the decreasing level of circulating tumor cells (CTCs) and circulating tumor DNA (ctDNA) as promising biomarkers for the diagnosis and prediction of GC during treatment progress. Twenty milliliters of plasma were collected at 3 time points: before nCRT; after 2 cycles of nCRT; and after surgery. Firefly ctDNA NGS assays were used to track ctDNA mutations previously characterized in paired tumor tissue by massively parallel sequencing (MPS). We investigated whether circulating tumor DNA (ctDNA) detection can reflect tumor response to nCRT and detect minimal residual disease(MRD) after surgery. We compared CTC and ctDNA levels to clinical, radiological and pathological assessment modalities for nCRT response. The results will provide lots of information which may contribute to promote the treatment of GC patients. We want to introduce these strategies into clinical practice if possible.

Read the detailed description

This study is a single-center observational study on a patient cohort of at least 80 patients with histologically-confirmed locally advanced gastric cancer (LAGC). The protocol used in this study is approved by the Ethics Committee of Beijing Cancer Hospital.

The primary endpoint is the 3-year progression-free survival (PFS) rate. The secondary endpoints are the overall survival (OS) and safety.

Currently, the best treatment for early and mid-stage LAGC patients is resection but even with successful treatment, most patients still relapse and the 5-year survival rate is less than 30%.

For patients with cT4a/T4bN+M0, including T4b、Bulky-N2, primary lesions are not always fully excised during treatment and prognosis for these patients is generally poor. Recent studies, however, have suggested that the inclusion of neoadjuvant chemotherapy (NCT) can improve patient outcomes by: 1) downstaging tumors and increasing the likelihood of curative resection, 2) reducing the prevalence of micro metastases.

Historically, Oxaliplatin and s-1 combination therapy has been shown to be well-tolerated in patients with recurrent or metastatic gastric cancer.

To best evaluate the treatment response of NCT, we plan to investigate the effect of new technologies and assays on the successful prediction of patient outcomes.

Circulating tumor DNA (ctDNA), fragmented DNA with an average size of 166 bp, is released by cancer cells into circulation. Circulating tumor cells (CTCs) are rare malignant cells detached from tumors which enter the bloodstream. Both these biomarkers can be used for prognosis and the dynamic monitoring of disease progression.

In the MAGIC trial, patients with tumor that are MSI-H or MMRD, had survival rates superior to those with MSS/MSI-L or MMRP tumors when treated with surgery alone.

We will combine dMMR/MSI status with the dynamic evaluation of CTCs and ctDNA using liquid biopsy technology to determine whether changes in tumor burden in response to NTC can identify potential treatment responders.

Sequential peripheral blood samples for CTCs and ctDNA analysis will be taken before and after NCT, as well as one week after surgery.

Tumor assessments will be performed after 2 cycles NCT based on RECIST v1.1 criteria using CT/MRI scan.

Conditions
Gastric Cancer
Keywords
Molecular Evaluation, Locally Advanced Gastric Cancer, Neoadjuvant Chemotherapy, ctDNA, CTC, dMMR/MSI
Medical subject headings
Stomach Neoplasms

What is being measured

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

  1. The relationship between dMMR/MSI status and response to neoadjuvant chemotherapy

    The relationship between dMMR/MSI status and response to neoadjuvant chemotherapy

    Measured: November 22, 2017 to December 31, 2018

  2. The concordance and accuracy of response evaluation results determined by ctDNA, CTCs compared with imaging and serum tumor biomarkers(CEA, CA19-9,CA72-4 et al)

    The concordance and accuracy of response evaluation results determined by ctDNA, CTCs compared with imaging and serum tumor biomarkers(CEA, CA19-9,CA72-4 et al)

    Measured: November 22, 2017 to December 31, 2018

Secondary outcomes (2)
  1. Prognostic values of the CTCs,ctDNA and dMMR/MSI testing

    Prognostic values of the CTCs,ctDNA and dMMR/MSI testing

    Measured: November 22, 2017 to December 31, 2018

  2. The concordance of mutations in tumor tissue and ctDNA

    The concordance of mutations in tumor tissue and ctDNA

    Measured: November 22, 2017 to December 31, 2018

Timeline

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

  1. First posted7 Feb 2018
  2. Study start22 Nov 2017
  3. Primary completion1 Feb 2020
  4. Study completion1 Oct 2021

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
Cohort
Time perspective
Prospective
Enrolment
80 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03425058
Sponsor's protocol ID
2017YJZ38
Acronym
MENCA-GC
Status last verified
Aug 2022
First submitted
1 Feb 2018
Last updated
9 Aug 2022
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

An observational study of Gastric Cancer, run by Peking University Cancer Hospital & Institute 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 13 inclusion and 15 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: finished, as of the sponsor's last update on 9 Aug 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?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

The relationship between dMMR/MSI status and response to neoadjuvant chemotherapy (time frame: November 22, 2017 to December 31, 2018). 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?
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 9 Aug 2022.

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