NCT05475288

Brief Summary

Data on disease recurrence was collected for all primary colon cancer patients diagnosed in the Netherlands over the first six months of 2015. Three-year cumulative incidence, risk factors, treatment and three-year OS of locoregionally recurrent colon cancer were determined.

Trial Health

100
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
3,554

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Jan 2015

Shorter than P25 for all trials

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

January 1, 2015

Completed
6 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 30, 2015

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 30, 2015

Completed
7 years until next milestone

First Submitted

Initial submission to the registry

July 15, 2022

Completed
11 days until next milestone

First Posted

Study publicly available on registry

July 26, 2022

Completed
Last Updated

July 26, 2022

Status Verified

July 1, 2022

Enrollment Period

6 months

First QC Date

July 15, 2022

Last Update Submit

July 25, 2022

Conditions

Outcome Measures

Primary Outcomes (4)

  • Cumulative incidence of patients with locoregionally recurrent colon cancer in curatively treated primary colon cancer patients

    UNIT OF MEASUREMENT: Cumulative incidence of patients with locoregionally recurrent colon cancer in curatively treated primary colon cancer patients; MEASUREMENT TOOL: Registration of diagnosis of locoregionally recurrent colon cancer in the electronic patient file. The competing-risk cumulative incidence will be calculated, which will inform on the proportion of patients who have developed locoregionally recurrent colon cancer at that time point.

    Three years

  • Risk factors for development of locoregionally recurrent colon cancer in primary colon cancer patients

    UNIT OF MEASUREMENT: Risk factors for development of locoregionally recurrent colon cancer in primary colon cancer patients; MEASUREMENT TOOL: Registration of clinical and pathological covariates of primary colon cancer in the electronic patient file and national pathological database (PALGA). Clinical and pathological risk factors for the development of locoregionally recurrent colon cancer will be identified using multivariable competing-risk risk regression analyses, according to the cause-specific hazard approach. This will inform on specific clinical and pathological covariates which increase or decrease the risk for development of locoregionally recurrent colon cancer.

    Three years

  • Proportions of treatment given to patients with locoregionally recurrent colon cancer

    UNIT OF MEASUREMENT: Proportions of treatment given to patients with locoregionally recurrent colon cancer; MEASUREMENT TOOL: Registration of treatment for locoregionally recurrent colon cancer in the electronic patient file. Using descriptive statistics, treatment patterns of patients with locoregionally recurrent colon cancer will be identified. Groups that will be created, will also be used to assess overall survival.

    Three years

  • Overall survival of patients with locoregionally recurrent colon cancer;

    UNIT OF MEASUREMENT: Overall survival of patients with locoregionally recurrent colon cancer; MEASUREMENT TOOL: Registration of vital status in the national personal records database. Overall survival will be estimated for patients with locoregionally recurrent colon cancer, stratifying for different groups (i.e. treatment, diagnosis of synchronous metastases, diagnosis within first year after primary resection, etc.)

    Three years

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

All patients diagnosed with stage I-III primary colon cancer in the first half of 2015.

You may qualify if:

  • Histologically confirmed stage I-III primary colon carcinoma;
  • Diagnosed between January 1st and June 30th of 2015;
  • Surgical resection of primary colon carcinoma.

You may not qualify if:

  • Appendiceal localization;
  • Neuroendocrine tumor morphology;

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (1)

  • Swartjes H, van Lankveld DWP, van Erning FN, Verheul HMW, de Wilt JHW, Koeter T, Vissers PAJ. Locoregionally Recurrent Colon Cancer: How Far Have We Come? A Population-Based, Retrospective Cohort Study. Ann Surg Oncol. 2023 Mar;30(3):1726-1734. doi: 10.1245/s10434-022-12689-5. Epub 2022 Oct 19.

MeSH Terms

Conditions

Colonic NeoplasmsNeoplasm Recurrence, Local

Condition Hierarchy (Ancestors)

Colorectal NeoplasmsIntestinal NeoplasmsGastrointestinal NeoplasmsDigestive System NeoplasmsNeoplasms by SiteNeoplasmsDigestive System DiseasesGastrointestinal DiseasesColonic DiseasesIntestinal DiseasesNeoplastic ProcessesPathologic ProcessesPathological Conditions, Signs and Symptoms

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
OTHER
Target Duration
6 Years
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Researcher in training

Study Record Dates

First Submitted

July 15, 2022

First Posted

July 26, 2022

Study Start

January 1, 2015

Primary Completion

June 30, 2015

Study Completion

June 30, 2015

Last Updated

July 26, 2022

Record last verified: 2022-07

Data Sharing

IPD Sharing
Will not share

Data can be requested through the Netherlands Cancer Registry.