Bronchi Dilation in Polynesian Patients: Monocentric Retrospective Study

June 11, 2026 updated by: Centre Hospitalier Intercommunal Creteil

The study hypothesis is that dilations of idiopathic bronchi are particularly common in French Polynesia, and that there are arguments in favour of an underlying genetic factor.

The study will retrieve retrospective data in the history of bronchial dilation, patients' personal and family history, microbiological and scannographic data, and the latest cardio respiratory checkup.

Study Overview

Status

Recruiting

Conditions

Polynesian Bronchiectasis

Study Type

Observational

Enrollment (Estimated)

500

Contacts and Locations

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

Study Contact

Name: Benoit Douvry, MD
Phone Number: 01 45 17 57 28
Email: Benoit.Douvry@chicreteil.fr

Study Contact Backup

Name: Eric PARRAT, MD
Phone Number: 00 689 87707790
Email: eric.parrat@cht.pf

Study Locations

French Polynesia
- - Papeete, French Polynesia
    - Recruiting
    - CH Polynésie Francaise
    - Contact:
      
      Eric PARRAT, MD

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

Sampling Method

Non-Probability Sample

Study Population

500 patients with bronchial dilatation over the study period: Jan 1, 2010 to Dec 31, 2020

Description

Inclusion Criteria:

Polynesian patient
Patient with bronchial dilation followed by Centre hospitalier de Polynesie Francaise or patient with bonchial dilation no longer consulting in the hospital over the study period Jan 1, 2010 to Dec 31, 2020

Exclusion Criteria:

Expressed refusal to participate in the study for patients undergoing follow-up

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

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Describe the detailed phenotype of bronchi dilation in the Polynesian population Time Frame: Day 1	Clinical criteria: age of onset, personal or family history, smoking Changes in respiratory function Infectious complications: types of bronchial colonization (bacterial, mycobacterial and mycological) Scantographic aspect: Appearance of bronchectasis: cylindrical, varicose orcious, cystic Distributions: LSD, LM, LID, LSG, LIG	Day 1

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Highlighting indirect arguments for a genetic cause Time Frame: Day 1	Age of onset of symptoms, frequency of so-called "idiopathic" bronchi dilatation, frequency of inbreeding, familial history	Day 1

Collaborators and Investigators

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

Sponsor

Centre Hospitalier Intercommunal Creteil

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)

June 1, 2025

Primary Completion (Actual)

July 1, 2025

Study Completion (Estimated)

June 1, 2027

Study Registration Dates

First Submitted

March 11, 2021

First Submitted That Met QC Criteria