Relationship Between Lymph Node Ratio and Survival Rate in Preoperative Chemoradiation Rectal Cancer Patients

May 7, 2020 updated by: Mahidol University
Colorectal cancer is the most-common cancer of the gastrointestinal tract. The number of positive lymph nodes and total number of lymph nodes retrieved are important prognostic factors. In patients who do not receive preoperative chemoradiation, the total number of lymph nodes should be more than 12 nodes to predict accurate staging. In cases of locally-advanced rectal cancer when patients receive neoadjuvant chemoradiation it is sometimes impossible to retrieve adequate amount of lymph nodes due to the chemoradiation effect. Therefore, this study was to evaluate and predict survival rates based on positive lymph node ratio.

Study Overview

Status

Completed

Conditions

Detailed Description

The primary endpoint of this study was to assess the lymph node ratio as another predictor for survival rate in preoperative chemoradiation rectal cancer patients. The other secondary objective was to determine the relationship between total harvested lymph nodes and survival rate in each stage. This is a retrospective, single-centered study, collecting data of patients from January 2011 to December 2017. Including a total of 163 patients with rectal cancer who underwent surgery following neoadjuvant chemoradiation. Using Cox regression and Kaplan-Meier survival analysis to determine whether the lymph node ratio can be used to predict the survival rate and determine the cut-off value to distinguish the prognosis of the disease.

Study Type

Observational

Enrollment (Actual)

160

Contacts and Locations

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

Study Locations

  • Thailand
    • Bankok
      • Bangkok, Bankok, Thailand, 10400
        • Chairat Supsamutchai

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

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Patients with rectal cancer who underwent curative surgery following neoadjuvant chemoradiation.

Description

Inclusion Criteria:

  • Patients with rectal cancer who underwent surgery following neoadjuvant chemoradiation.
  • Patients have tissues confirmed by Pathology
  • no metastasis before surgery

Exclusion Criteria:

  • Distant metastasis during surgery

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

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Survival rates
Time Frame: 5 year
survival rate in preoperative chemoradiation rectal cancer patients.
5 year

Collaborators and Investigators

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

Sponsor

Mahidol University

Investigators

  • Study Chair: Chairat Supsamutchai, MD, Faculty of Medicine Ramathibodi Hospital, Mahidol University
  • Principal Investigator: Tanet Chatmongkonwat, MD, of Medicine Ramathibodi Hospital, Mahidol University.

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)

April 1, 2018

Primary Completion (Actual)

September 30, 2019

Study Completion (Actual)

October 30, 2019

Study Registration Dates

First Submitted

April 17, 2019

First Submitted That Met QC Criteria

September 17, 2019

First Posted (Actual)

September 19, 2019

Study Record Updates

Last Update Posted (Actual)

May 11, 2020

Last Update Submitted That Met QC Criteria

May 7, 2020

Last Verified

May 1, 2020

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 2017/426

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

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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