Access to Care and Prognosis in Elderly With Cancer (INCAPAC Study)

September 12, 2025 updated by: Institut Bergonié

Access to Care and Prognosis in Elderly Cancer Patients: Analysis of Determinants Using Data From Cancer Registries and Cohort Studies in Gironde, French Department

The growing incidence of cancer associated to an aging population represents an epidemiologic reality that requires questioning access to care and prognosis in elderly with cancer, for which disparities have been highlighted. However, generally speaking, studies are limited in that they overlook geriatric-specific factors. The aim of this work was to study sociodemographic, socioeconomic and clinical determinants of access to care (cancer stage, cancer treatment) and prognosis (functional decline, survival) in elderly cancer patients.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

The French department of Gironde (1.5 million inhabitants) is covered by cancer registries. In addition, three cohorts were initiated in Gironde on cerebral and functional aging that enrolled subjects aged 65 years and over: the PAQUID study (1988), the 3-City study (1999), and the AMI study (2007). In these cohorts, a large amount of individual data on the participants has been collected longitudinally at different follow-up visits, conducted every two or three years.

Using cancer registries, older subjects with cancer were identified in the cohort studies. Subjects were included if they presented the following: i) aged 65 years and over from one of the three cohorts, ii) alive on January 1st 2005 (common start date for tumor recording) and resident in Gironde, and iii) with a validated cancer diagnosis recorded in one of the cancer registries from January 1st 2005 to December 31st 2014. All tumors for which data is annually sent by cancer registries to the International Agency for Research of Cancer were included: invasive malignant tumors and benign tumors of the central nervous system. As the incidence of skin tumors in older cancer patients is high, they were also included. For patients with multiple tumors, only one was considered: either the first one diagnosed if there were several tumors with a minimum of a 6 months interval between their diagnosis, or the one with the worse prognosis if there were several tumors diagnosed within 6 months.

In order to not consider information concerning patients' characteristics that was too old, subjects with a delay between the last completed cohort follow-up visit before the cancer diagnosis and the diagnosis of cancer equal or superior to 6 years were excluded.

Variables were extracted from cohorts and registries at different times: cohort inclusion, pre-diagnosis visit, cancer diagnosis or registries follow-up.

Study Type

Observational

Enrollment (Actual)

450

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

  • France
      • Bordeaux, France, 33076
        • Institut Bergonie

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

65 years and older (Older Adult)

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

Subjects aged 65 and over with a diagnosis of cancer recorded in one of the cancer registries in Gironde, French department.

Description

  • Age ≥ 65 years
  • Alive on January 1st 2005 ( PAQUID or 3-City cohorts) or included in the AMI cohort study
  • Cancer diagnosis recorded in one of the cancer registries in Gironde, French department

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

  • Observational Models: Cohort
  • Time Perspectives: Retrospective

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
Older patients with cancer
Subjects i) aged 65 years and over from the PAQUID, the 3City or the AMI study; ii) alive on January 1st 2005 (common start date of tumor recording); iii) resident in Gironde; and iv) with a validated cancer diagnosis recorded in one of the cancer registries from January 1st 2005 to December 31st 2014. We included all invasive malignant tumors (including skin tumors) and benign tumors of the central nervous system. For patients with multiple tumors, only one was considered: i) the first one diagnosed if there were several tumors with a minimum of a 6 months interval between their diagnosis, ii) the one with the worse prognosis if there were several tumors diagnosed within less than 6 months.
Other: Any cancer treatment

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Proportion of Patients Being Receiving Treatment Administration After Diagnosis
Time Frame: At diagnosis

Treatment administration was defined as any cancer treatment (versus no treatment) including curative, palliative and symptomatic treatments.

This information was registered by registries and qualified as unknown when no information was available about treatment receipt.
At diagnosis
The Probability of Being Dead at One Year
Time Frame: one year after diagnosis
The probability of being dead with or without receiving cancer treatment at least once (death)
one year after diagnosis

Collaborators and Investigators

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

Sponsor

Institut Bergonié

Collaborators

Institut National de la Santé Et de la Recherche Médicale, France
University of Bordeaux

Investigators

  • Study Chair: Simone Mathoulin-Pelissier, MD-PhD, Institut Bergonie

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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)

November 1, 2013

Primary Completion (Actual)

November 1, 2016

Study Completion (Actual)

November 1, 2017

Study Registration Dates

First Submitted

September 21, 2018

First Submitted That Met QC Criteria

October 1, 2018

First Posted (Actual)

October 3, 2018

Study Record Updates

Last Update Posted (Estimated)

October 3, 2025

Last Update Submitted That Met QC Criteria

September 12, 2025

Last Verified

September 1, 2025

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • IB2013 INCAPAC

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

product manufactured in and exported from the U.S.

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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