Male breAsT cAncer preDisposition Factor

This is a non-interventional, prospective, single-center study designed to collect and describe environmental and psychosocial data from patients with a history of male breast cancer (MBC) referenced in the IUCT-O regional database.

The study will be conducted on a population of 110 to 150 patients.

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Key information

Conditions

Breast Cancer Breast Diseases Breast Neoplasms Neoplasms Neoplasms by Site Skin Diseases Skin and Connective Tissue Diseases

Age range

18 year and older

Sex eligibility

Male

Study type

Observational

Primary location

IUCT-O

Toulouse, France

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

Male patient with a personal history of breast cancer
Age ≥ 18 years
Patient who has had an oncogenetic consultation at IUCT-O and is registered in the IUCT-O oncogenetic database
Patient for whom no pathogenic variant has been detected on the HBOC panel (HBOC-)
Patient with no objection to participation in the trial (for deceased patients: trusted support person with no objection to participation).

Exclusion criteria

Patient who has forfeited his/her freedom by administrative or legal award or who is under legal protection (curatorship and guardianship, protection of justice).

Treatment and study plan

questionnaire completion

Other

To meet the study's objective, patients will be asked to complete a questionnaire characterizing their environmental and psychosocial context.

The questionnaire is to be completed by the patients themselves, or by their trusted support person as recorded in their medical records (in the particular case of a deceased patient).

It is estimated that the questionnaire will take around 30 minutes to complete.

Data will also be collected from the medical records of included patients:

Demographics
Disease data

Primary outcomes

The environmental data in the questionnaire will be described by the usual descriptive statistics.

Time frame: 15 days for each patient

A 75-question questionnaire will cover such aspects as the patient's living conditions, professional situation, qualifications or level of education, social environment, early life and family environment, general health and recent significant events.

Quantitative data will be described by the median, minimum, maximum and number of missing data, and qualitative data by the numbers, percentages and number of missing data for each modality.
Psychosocial data from the questionnaire will be described using standard descriptive statistics.

Time frame: 15 days for each patient

A 75-question questionnaire will cover such aspects as the patient's living conditions, professional situation, qualifications or level of education, social environment, early life and family environment, general health and recent significant events.

Quantitative data will be described by the median, minimum, maximum and number of missing data, and qualitative data by the numbers, percentages and number of missing data for each modality.

Sponsors and collaborators

Lead sponsor

Institut Claudius Regaud

Other

Collaborators

Ligue contre le cancer, France

Registry information

Acronym: MATADOR

Important dates

Study start: 2024
Primary completion: 2025
Study completion: 2025
First posted: Jan 23, 2024
Registry last updated: Jun 10, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Published trials that share one or more normalized conditions with this study.

Completed