Pancreaticoduodenectomy in Elderly Pancreatic Ductal Adenocarcinoma Patients

September 4, 2018 updated by: The First Affiliated Hospital of Dalian Medical University

Long-term Benefit of Elderly Pancreatic Ductal Adenocarcinoma Patients After Pancreaticoduodenectomy

We used the SEER database to analyze the data of patients with PDAC. The database includes patients of 18 registries in the USA from 1973-2013All the malignant cases were followed-up annually to determine vital status.

The aim of Our study is to make clearly the long-term survival of younger (age <80 years) and elderly (age ≥80 years) pancreatic cancer patients underwent PD. Sec-ond, find out the risk factors of poor prognosis in elderly patients.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Database We used the SEER database to analyze the data of patients with PDAC. The database includes patients of 18 registries in the USA from 1973-2013, encompassing approxi-mately 28% of the USA population. All the malignant cases were followed-up annu-ally to determine vital status.

Patient Population All the variables' definitions are encoded in the SEER database. To identify the PDAC cases, site codes (C25 pancreas, C25.0-C25.9) and histology codes (8140 adenocarcinoma, 8500 infiltrating duct carcinoma) based on the International Classification of Diseases for Oncology, Third Edition (ICD-O-3) were used.11 Only cases that underwent PD and microscopically confirmed were included.

Outcome Variables We only included those PDAC patients that underwent PD with precise data available for the following variables: age at diagnosis, year of diagnosis, gender, race, tumor site, tumor size, regional nodes positive, regional nodes examined, grade, stage, vital status, and survival months.

To clearly differentiate the difference of long-term survival between young and elderly patients, all cases were divided into two group age < 80 years and age ≥ 80 years. Since 2004, the AJCC 6th stage has been used in the SEER database. Thus, the diagnosis years of the cases included in our study ranged from 2004-2013. To analyze the median OS between different time periods, we divided the year of diagnosis into two groups: 2004-2008 year and 2009-2013. Furthermore, we also divided the tumor size into three groups: ≤ 2 cm, 2-4 cm, and > 4 cm. The lymph node ratio (LNR) is considered a robust prognostic factor after resection of pancreatic cancer and was es-timated using regional nodes positive divided by regional nodes examined.15 LNR was then categorized into three groups: 0%, 1-50%, > 50%.

Study Type

Observational

Enrollment (Actual)

5910

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

N/A

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Pancreatic ductal adenocarcinoma patients in the SEER database form 2003 to 2013.

Description

Inclusion Criteria:

  • Patients with pancreatic ductal adenocarcinoma，treatment by pancreaticoduodenectomy.Only cases that underwent PD and microscopically confirmed were included.

Exclusion Criteria:

  • Patients with no survival data.

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

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
younger patients (age < 80)
age < 80 patients， All the variables' definitions are encoded in the SEER database. To identify the PDAC cases, site codes (C25 pancreas, C25.0-C25.9) and histology codes (8140 adenocarcinoma, 8500 infiltrating duct carcinoma) based on the International Classification of Diseases for Oncology, Third Edition (ICD-O-3) were used.11 Only cases that underwent PD and microscopically confirmed were included.
Procedure: pancreaticoduodenectomy
pancreaticoduodenectomy
older patients (age≥ 80 )
age ≥ 80 years-old patients，All the variables' definitions are encoded in the SEER database. To identify the PDAC cases, site codes (C25 pancreas, C25.0-C25.9) and histology codes (8140 adenocarcinoma, 8500 infiltrating duct carcinoma) based on the International Classification of Diseases for Oncology, Third Edition (ICD-O-3) were used.11 Only cases that underwent PD and microscopically confirmed were included.
Procedure: pancreaticoduodenectomy
pancreaticoduodenectomy

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
median OS
Time Frame: to 2013 Dec. 31
The median overall survival of all patients
to 2013 Dec. 31

Collaborators and Investigators

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

Sponsor

The First Affiliated Hospital of Dalian Medical 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)

January 1, 2004

Primary Completion (Actual)

December 13, 2013

Study Completion (Actual)

September 1, 2018

Study Registration Dates

First Submitted

September 4, 2018

First Submitted That Met QC Criteria

September 4, 2018

First Posted (Actual)

September 6, 2018

Study Record Updates

Last Update Posted (Actual)

September 6, 2018

Last Update Submitted That Met QC Criteria

September 4, 2018

Last Verified

September 1, 2018

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • YJ-KY-FB-2017-06

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.

Clinical Trials on Pancreas Cancer

Clinical Trials on pancreaticoduodenectomy

Search Similar Trials

Sponsors and Collaborators

Medical Conditions

Drug Interventions

CROs by country

CROs in Norway

Conditions

Rare Diseases

Drug Interventions

Dietary Supplements

Sponsor/Collaborators

Locations

3
Subscribe