Cystic FibrosisNCT01605565
Functional Analysis by Dynamic Imaging of the Respiratory Epithelium in Infants With Cystic Fibrosis
A study testing A nasal brushing in people with Cystic Fibrosis, run by Institut National de la Santé Et de la Recherche Médicale, France at 1 site in France.
Trial summary
Cystic fibrosis (CF) is characterized by airway inflammation and infection leading to progressive destruction of lungs. One of the most important abnormalities in CF is an abnormal processing of the mutated CFTR protein through the endoplasmic reticulum that causes abnormal location or even absence of the protein at… Read more about this study
- Who is it for?
- Ages 1 week to 6 monthsHealthy volunteers can take part
- Conditions the study is for
- Cystic Fibrosis
- What is being tested?
- A nasal brushing
- Type of treatment
- Surgery or procedure
- How many people
- 30 participants
- Where
- 1 siteFrance
- Study dates
- Nov 2011to 18 Sep 2013
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 1 week to 6 months
- All sexes
- Healthy volunteers accepted
- Child
Who may be able to join
- Cystic fibrosis
Who cannot join
- > 6 months old
- Other respiratory disease
- Other allergic disease
- Other infectious disease: fever (> 38° C), respiratory distress
- Altered general health state, rash,
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Analyse Fonctionnelle Par Imagerie Dynamique de l'épithélium Respiratoire Chez Des Nourrissons Atteints de Mucoviscidose
Cystic fibrosis (CF) is characterized by airway inflammation and infection leading to progressive destruction of lungs. One of the most important abnormalities in CF is an abnormal processing of the mutated CFTR protein through the endoplasmic reticulum that causes abnormal location or even absence of the protein at the apical plasma membrane of airway epithelial cells. This abnormality results in a marked dehydration of the airway surface fluid, decreased mucus transport and airway obstruction. Nevertheless, the events that occur very early during the progression of the disease at the airway level in infants are not known. At cellular level, it has also been reported that the CFTR expression and localization could be related to the differentiation state of the airway epithelium. Furthermore, it has been reported that gap junctions could be involved in dysregulate inflammation process. In CF infants, many answers are still lacking. For a better understanding of the early stages of cystic fibrosis, it is of major interest to study respiratory epithelial cells obtained as early as possible. In 15 CF infants and 15 control infants, a nasal brushing will be performed by means of a soft sterile cytology brush. Samples will be used for cytological and functional studies: ciliary beating frequency, cAMP-dependent chloride efflux, potassium efflux, tight and gap junctions functionalities. These studies will be done in basal conditions and will be repeated after activation of the nasal epithelial cells by the bacteria, such as Staphylococcus aureus, which can be found very early in the course of CF disease.
Read the detailed description
Cystic fibrosis (CF) is characterized by airway inflammation and infection leading to progressive destruction of lungs. One of the most important abnormalities in CF is an abnormal processing of the mutated CFTR protein through the endoplasmic reticulum that causes abnormal location or even absence of the protein at the apical plasma membrane of airway epithelial cells. This abnormality results in a marked dehydration of the airway surface fluid, decreased mucus transport and airway obstruction. Nevertheless, the events that occur very early during the progression of the disease at the airway level in infants are not known. At cellular level, it has also been reported that the CFTR expression and localization could be related to the differentiation state of the airway epithelium. Furthermore, it has been reported that gap junctions could be involved in dysregulate inflammation process. In CF infants, many answers are still lacking.
Is inflammation present before infection? Is native epithelium of CF infants more sensitive than controls? Could the investigators analyse the localisation and functionality of CFTR, tight and gap junctions in respiratory epithelial cells in CF infants? Could the activation of the epithelial cells by bacteria alter their functional properties? For a better understanding of the early stages of cystic fibrosis, it is of major interest to study respiratory epithelial cells obtained as early as possible. Although bronchoalveolar lavage has been proposed for this purpose, nasal brushing, which is a much less invasive technique, has seldom been used in CF infants. the investigators have shown that, by means of a simple nasal brushing technique easily performed and well tolerated, it is feasible, in infants, to harvest native respiratory cell sheets in order to analyse the airway epithelium functionality. In 15 CF infants and 15 control infants, a nasal brushing will be performed by means of a soft sterile cytology brush. Samples will be used for cytological and functional studies: ciliary beating frequency, cAMP-dependent chloride efflux, potassium efflux, tight and gap junctions functionalities. These studies will be done in basal conditions and will be repeated after activation of the nasal epithelial cells by the bacteria, such as Staphylococcus aureus, which can be found very early in the course of CF disease.
the investigators believe that the present study could help to understand the pathophysiology on the very early stages of CF disease.
- Conditions
- Cystic Fibrosis
- Being tested
- A nasal brushing
- Medical subject headings
- Cystic Fibrosis
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
A nasal brushingProcedure or surgery
A nasal brushing in every nostril
What is being measured
The primary outcome is the main question the study is designed to answer.
The main objective is to analyze the functionality of the respiratory epithelium in CF infant using a nasal brushing technique: ciliary beating frequency, cAMP-dependent chloride efflux, potassium efflux, tight and gap junctions functionalities.
In 15 CF infants and 15 control infants, a nasal brushing will be performed by means of a soft sterile cytology brush. Samples will be used for cytological and functional studies: ciliary beating frequency, cAMP-dependent chloride efflux, potassium efflux, tight and gap junctions functionalities.
Measured: no time frame
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted25 May 2012 (estimated)
- Study startNov 2011
- Primary completion18 Sep 2013
- Study completion18 Sep 2013
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for Cystic FibrosisStudies of the same condition, open and under way.
- More trials run by Institut National de la Santé Et de la Recherche Médicale, FranceThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Basic science
- Allocation
- Not applicable
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 30 participants (actual)
Sponsor and investigators
- Sponsor type
- Other government
- Responsible party
- Sponsor
- Investigators
- Michel ABELY, Professor, Principal investigator, CHU de Reims
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01605565
- Sponsor's protocol ID
- C11-01
- Other IDs
- 2011-A00384-37
- Status last verified
- Jan 2025
- First submitted
- 11 Apr 2012
- Last updated
- 23 Jan 2025
- Results posted
- No
- Data monitoring committee
- No
Publications
Mosler K, Coraux C, Fragaki K, Zahm JM, Bajolet O, Bessaci-Kabouya K, Puchelle E, Abely M, Mauran P. Feasibility of nasal epithelial brushing for the study of airway epithelial functions in CF infants. J Cyst Fibros. 2008 Jan;7(1):44-53. doi: 10.1016/j.jcf.2007.04.005. Epub 2007 Jun 5.
PubMed 17553758
Study at a glance
From the registry record, last updated by the sponsor on 23 Jan 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Analyse Fonctionnelle Par Imagerie Dynamique de l'épithélium Respiratoire Chez Des Nourrissons Atteints de Mucoviscidose
- ClinicalTrials.gov ID
- NCT01605565
- Acronym / sponsor ID
- C11-01
- Conditions
- Cystic Fibrosis
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 30 participants (actual)
- Lead sponsor
- Institut National de la Santé Et de la Recherche Médicale, FranceOther government
- Study start
- Nov 2011 (actual)
- Primary completion
- 18 Sep 2013 (actual)
- Study completion
- 18 Sep 2013 (actual)
- First posted
- 25 May 2012 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Cystic fibrosis (CF) is characterized by airway inflammation and infection leading to progressive destruction of lungs. One of the most important abnormalities in CF is an abnormal processing of the mutated CFTR protein through the endoplasmic reticulum that causes abnormal location or even absence of the protein at the apical plasma membrane of airway epithelial cells. This abnormality results in a marked dehydration of the airway surface fluid, decreased mucus transport and airway obstruction. Nevertheless, the events that occur very early during the progression of the disease at the airway level in infants are not known. At cellular level, it has also been reported that the CFTR expression and localization could be related to the differentiation state of the airway epithelium. Furthermore, it has been reported that gap junctions could be involved in dysregulate inflammation process. In CF infants, many answers are still lacking. For a better understanding of the early stages of cystic fibrosis, it is of major interest to study respiratory epithelial cells obtained as early as possible. In 15 CF infants and 15 control infants, a nasal brushing will be performed by means of a soft sterile cytology brush. Samples will be used for cytological and functional studies: ciliary beating frequency, cAMP-dependent chloride efflux, potassium efflux, tight and gap junctions functionalities. These studies will be done in basal conditions and will be repeated after activation of the nasal epithelial cells by the bacteria, such as Staphylococcus aureus, which can be found very early in the course of CF disease.
Detailed description
Cystic fibrosis (CF) is characterized by airway inflammation and infection leading to progressive destruction of lungs. One of the most important abnormalities in CF is an abnormal processing of the mutated CFTR protein through the endoplasmic reticulum that causes abnormal location or even absence of the protein at the apical plasma membrane of airway epithelial cells. This abnormality results in a marked dehydration of the airway surface fluid, decreased mucus transport and airway obstruction. Nevertheless, the events that occur very early during the progression of the disease at the airway level in infants are not known. At cellular level, it has also been reported that the CFTR expression and localization could be related to the differentiation state of the airway epithelium. Furthermore, it has been reported that gap junctions could be involved in dysregulate inflammation process. In CF infants, many answers are still lacking.
Is inflammation present before infection? Is native epithelium of CF infants more sensitive than controls? Could the investigators analyse the localisation and functionality of CFTR, tight and gap junctions in respiratory epithelial cells in CF infants? Could the activation of the epithelial cells by bacteria alter their functional properties? For a better understanding of the early stages of cystic fibrosis, it is of major interest to study respiratory epithelial cells obtained as early as possible. Although bronchoalveolar lavage has been proposed for this purpose, nasal brushing, which is a much less invasive technique, has seldom been used in CF infants. the investigators have shown that, by means of a simple nasal brushing technique easily performed and well tolerated, it is feasible, in infants, to harvest native respiratory cell sheets in order to analyse the airway epithelium functionality. In 15 CF infants and 15 control infants, a nasal brushing will be performed by means of a soft sterile cytology brush. Samples will be used for cytological and functional studies: ciliary beating frequency, cAMP-dependent chloride efflux, potassium efflux, tight and gap junctions functionalities. These studies will be done in basal conditions and will be repeated after activation of the nasal epithelial cells by the bacteria, such as Staphylococcus aureus, which can be found very early in the course of CF disease.
the investigators believe that the present study could help to understand the pathophysiology on the very early stages of CF disease.
Study design
- Primary purpose
- Basic science
- Allocation
- Not applicable
- Intervention model
- Parallel groups
- Masking
- None (open label)
Who may qualify
- Ages
- 1 week to 6 months
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Child
Key inclusion criteria (1 listed)
- Cystic fibrosis
Key exclusion criteria (5 listed)
- > 6 months old
- Other respiratory disease
- Other allergic disease
- Other infectious disease: fever (> 38° C), respiratory distress
- Altered general health state, rash,
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| A nasal brushingA nasal brushing in every nostril | Procedure or surgery | – |
Primary outcome
The main objective is to analyze the functionality of the respiratory epithelium in CF infant using a nasal brushing technique: ciliary beating frequency, cAMP-dependent chloride efflux, potassium efflux, tight and gap junctions functionalities.
Time frame: no time frame
In 15 CF infants and 15 control infants, a nasal brushing will be performed by means of a soft sterile cytology brush. Samples will be used for cytological and functional studies: ciliary beating frequency, cAMP-dependent chloride efflux, potassium efflux, tight and gap junctions functionalities.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 23 Jan 2025.
- Results publication: PubMed 17553758Mosler K, Coraux C, Fragaki K, Zahm JM, Bajolet O, Bessaci-Kabouya K, Puchelle E, Abely M, Mauran P. Feasibility of nasal epithelial brushing for the study of airway epithelial functions in CF infants. J Cyst Fibros. 2008 Jan;7(1):44-53. doi: 10.1016/j.jcf.2007.04.005. Epub 2007 Jun 5.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Michel ABELY, Professor principal investigator
CHU de Reims
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing A nasal brushing in people with Cystic Fibrosis, run by Institut National de la Santé Et de la Recherche Médicale, France at 1 site in France.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 1 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 23 Jan 2025. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in France. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
The main objective is to analyze the functionality of the respiratory epithelium in CF infant using a nasal brushing technique: ciliary beating frequency, cAMP-dependent chloride efflux, potassium efflux, tight and gap junctions functionalities. (time frame: no time frame). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT01605565, which also lists 1 linked publication.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 23 Jan 2025.