International Primary Ciliary Dyskinesia Cohort (iPCD)

November 29, 2023 updated by: University of Bern
The iPCD Cohort is an international cohort that assembles available retrospective datasets and prospectively newly collected clinical and diagnostic data from patients suffering from primary ciliary dyskinesia (PCD) worldwide, to answer pertinent questions on clinical phenotype, disease severity, prognosis and effect of treatments in patients with this rare multiorgan disease.

Study Overview

Status

Recruiting

Detailed Description

The iPCD Cohort was set up under the framework of the European Union (EU) funded 7th Framework Programme (FP7) project Better Experimental Screening and Treatment for Primary Ciliary Dyskinesia (BESTCILIA). The iPCD Cohort is hosted at the Institute of Social and Preventive Medicine at the University of Bern, Switzerland. Research is performed in close collaboration with all data contributors.

Aims:

This combined international dataset allows investigation of PCD epidemiology in a large international study population in order to: 1) describe the spectrum of clinical phenotypes and disease severity in PCD patients by age, sex and time period of diagnosis; 2) describe short-term and long-term prognosis of PCD, looking at important outcomes such as growth, lung function and respiratory failure, bacterial colonisation, hearing loss, fertility, and mortality; and 3) identify predictors of long-term outcomes such as age at diagnosis, clinical phenotype, ultrastructural defects, genotype and clinical care.

Study design:

The iPCD Cohort is an international cohort, combining available data on PCD from national or local registries and clinical or diagnostic databases. All participating centres delivered retrospectively collected data; new centres joining the iPCD Cohort in the future can also participate with retrospectively and prospectively collected data.

What information is collected:

The iPCD Cohort includes retrospectively collected patient data on the following 11 thematic categories: 1) general information, 2) results of diagnostic tests, 3) baseline characteristics, 4) growth and lung function, 5) clinical manifestations, 6) therapy, 7) microbiology, 8) imaging, 9) surgical interventions, 10) neonatal period, and 11) family history.

Study database:

The iPCD Cohort database is web-based, using the Research Electronic Data Capture (REDCap) platform developed at Vanderbilt University. REDCap is widely used in academic research and allows data entry and extraction in various formats.

How to participate:

Centres that wish to participate to the project and contribute data can contact the iPCD Cohort to sign a data delivery agreement. They then will receive a password to access the online software REDCap and they will be able to enter their data directly. They can also upload follow-up data or add additional patients at a later time point.

For further details, contact: pcd@ispm.unibe.ch

Funding:

The setting up of the iPCD Cohort (salaries, consumables and equipment) was funded by the EU FP7 project BESTCILIA (http://bestcilia.eu) and several Swiss funding bodies, including the Lung Leagues of Bern, St Gallen, Vaud, Ticino and Valais and the Milena Carvajal Pro-Kartagener Foundation. Data collection and management at each site was funded according to local arrangements. Most participating researchers and data contributors participate in the European Cooperation in Science and Technology (COST) Action "Better Evidence to Advance Therapeutic options for PCD" (BEAT-PCD) (BM 1407; www.beatpcd.org). Infrastructure is provided for free by the University of Bern, where the data are pooled and stored. The study is currently funded by the Swiss National Science Foundation (320030_173044 and 320030B_192804).

Study Type

Observational

Enrollment (Estimated)

5000

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

Study Contact Backup

Study Locations

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

No

Sampling Method

Non-Probability Sample

Study Population

Patients of all ages diagnosed with PCD, followed in a PCD centre or other specialised clinic or registered in a national registry

Description

Inclusion Criteria:

Patients diagnosed with primary ciliary dyskinesia

Exclusion Criteria:

-

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: Other

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Height
Time Frame: every 3 months up to 10 years
Height z-scores calculated based on available national and international references
every 3 months up to 10 years
BMI
Time Frame: every 3 months up to 10 years
Body Mass Index (BMI) z-scores calculated based on available national and international references
every 3 months up to 10 years
Lung function measurements
Time Frame: every 3 months up to 10 years
Spirometric indices, particularly Forced expiratory volume in 1 sec (FEV1) and Forced vital capacity (FVC) z-scores calculated based on Global Lung Function Initiative (GLI) reference values
every 3 months up to 10 years
Diagnostic test results
Time Frame: at diagnosis/ study entry
Results of performed PCD diagnostic tests including measurement of nasal nitric oxide, electron microscopy findings, beat frequency and pattern.
at diagnosis/ study entry
Clinical symptoms and signs
Time Frame: every 3 months up to 10 years
Prevalence of reported clinical symptoms at different age groups, including rhinitis, cough, otitis, sinusitis, pneumonia, laterality defects, congenital heart disease and fertility problems.
every 3 months up to 10 years
Microbiology results
Time Frame: every 3 months up to 10 years
Results of microbiology cultures of respiratory samples (sputum, cough swabs, throat swabs, ear swabs, bronchoalveolar lavage) and information on antibiotic resistance (in positive cultures)
every 3 months up to 10 years
Imaging results
Time Frame: every 3 months up to 10 years
Radiological findings from sinus and lung imaging tests including x-rays, computed tomography and magnetic resonance imaging
every 3 months up to 10 years

Collaborators and Investigators

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

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)

January 1, 2013

Primary Completion (Estimated)

December 1, 2028

Study Completion (Estimated)

December 1, 2030

Study Registration Dates

First Submitted

April 5, 2018

First Submitted That Met QC Criteria

April 24, 2018

First Posted (Actual)

May 8, 2018

Study Record Updates

Last Update Posted (Actual)

November 30, 2023

Last Update Submitted That Met QC Criteria

November 29, 2023

Last Verified

November 1, 2023

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

Researchers wanting to use the iPCD Cohort dataset can propose a research topic and draft a concept sheet describing the planned analyses and publication. All concept sheets have to be approved by all participating centres contributing data to the proposed analysis under question. After the participating centres agree to contribute their data and sign a publication agreement, the iPCD cohort managing centre (University of Bern) will prepare a partial dataset for the proposed analysis and will work closely with the lead researchers offering methodological input and support. In case additional data is collected to complete the partial dataset for a specific project, this will be added to the iPCD Cohort to enrich it after each project.

For further details, contact: pcd@ispm.unibe.ch

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.

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