Tracking CF Lung Disease Through the Early Years: Utility of the LCI (LCITRACK)

September 20, 2021 updated by: Felix Ratjen
This is a prospective observational study to follow a cohort of patients with Cystic Fibrosis and healthy controls for a period of two years. This study will include monitoring the subjects lung clearance index (by performing a breathing test called the multiple breath washout), as well as spirometry and their respiratory symptoms every three months as well as during a pulmonary exacerbation and after their recovery.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

This is a prospective observational cohort study. During the 3 year study period, each participant will be followed for a period of 2 years. The study will include quarterly measurements of the lung clearance index (LCI), as well as spirometry, for CF patients at their routine clinic visits. Parents of patients with CF will be asked to call the study nurse or clinical nurse if they experience a worsening of pulmonary symptoms and to come to the clinic for assessment of lung function. CF patients will then be assessed by a CF physician to assess whether they require antibiotic treatment based on a clinicians decisions to treat with antibiotics. The treatment decision will be left to the discretion of the patient's responsible physician, who will be blinded to the MBW results. All patients who meet the symptom based definition of a pulmonary exacerbation, regardless of treatment decision, will have MBW measured after 4 weeks. Following these visits at the time of an exacerbation, patients will have their MBW measured at their next clinic visit (usually within 3 months), and every 3 months thereafter until the end of the 2 year observation period, or the repeat onset of symptoms.This study will capture a maximum of two exacerbations per patient over the 2 year study period.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
146

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

  • Canada
    • Ontario
      • Toronto, Ontario, Canada, M5G1X8
        • Hospital for Sick Children

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

3 years to 16 years (Child)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

There were 139 subjects recruited in the original preschool longitudinal study, and all participants from this original study will be invited to participate in this follow up study. We would like to recruit an additional 40 CF patients at the Hospital for Sick Children to increase our cohort size.

Description

Inclusion Criteria for Healthy Controls:

  • Informed consent by patient or parent/legal guardian, verbal assent where appropriate
  • Age 3 years to 16 years old
  • Clinically stable with no signs of an acute exacerbation at enrollment visit
  • Previously participated in a longitudinal MBW study at the Hospital for Sick Children and at the Riley Hospital for Children

Inclusion Criteria for CF Patients:

  • Diagnosis of CF as defined by two or more clinical features of CF and a documented sweat chloride > 60 mEq/L by quantitative pilocarpine iontophoresis test or a genotype showing two well characterized disease causing mutations
  • Informed consent by patient or parent/legal guardian, verbal assent where appropriate
  • Age 3 years to 16 years old
  • Clinically stable with no signs of an acute exacerbation at enrollment visit

Exclusion Criteria:

  • Previous organ transplantation
  • Chronic lung disease not related to CF, such as asthma
  • Use of intravenous antibiotics or other course of oral antibiotics (excluding maintenance treatment antibiotics) within 14 days of enrollment visit
  • Physical findings at screening that would compromise the safety of the participant or the quality of the study data

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

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Healthy Controls
No intervention. Only monitoring LCI
Other: This is an observational study, no intervention used.
No intervention is being used in this study.
Cystic Fibrosis Patients
No intervention. Only monitoring LCI
Other: This is an observational study, no intervention used.
No intervention is being used in this study.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Lung Clearance Index
Time Frame: an average of 2 years
Outcome measure from the Multiple Breath Washout test.
an average of 2 years

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Spirometry
Time Frame: an average of 2 years
FEV1
an average of 2 years
Respiratory Cultures
Time Frame: an average of 2 years
Bacterial pathogens IL-8 and neutrophil elastase
an average of 2 years
Respiratory Symptoms
Time Frame: an average of 2 years
CFQ-R
an average of 2 years
Respiratory Symptoms
Time Frame: an average of 2 years
CFRSD-CRISS
an average of 2 years

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Felix Ratjen

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Felix Ratjen, MD, The Hospital for Sick Children

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)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
October 5, 2017

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
October 1, 2020

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
September 1, 2021

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
April 27, 2017

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
May 1, 2017

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
May 3, 2017

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
September 21, 2021

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 20, 2021

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
September 1, 2021

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 1000055762

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

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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Clinical Trials on This is an observational study, no intervention used.

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Drug Interventions

Conditions

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Dietary Supplements

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