Cystic FibrosisMethylBiomarkNCT02976714
Identification of Predictive Epigenetic Biomarkers of Lung Disease Severity in Cystic Fibrosis
A study testing spontaneous sputum in people with Cystic Fibrosis, run by University Hospital, Montpellier at 1 site in France.
Trial summary
The general aims of this project are (i) to identify predictive epigenetic biomarkers of lung disease severity in Cystic Fibrosis, (ii) to characterize a non-invasive cellular model, spontaneous sputum, for the analysis of these epigenetic biomarkers, (iii) to analyze the variations in DNA methylation for a same… Read more about this study
- Who is it for?
- Ages 12 to 30 years
- Conditions the study is for
- Cystic Fibrosis
- What is being tested?
- spontaneous sputum
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 50 participants
- Where
- 1 siteFrance
- Study dates
- 12 Dec 2016to 13 Jul 2021
- 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 12 to 30 years
- All sexes
- No healthy volunteers
- Child, Adult
Who may be able to join
- free and informed consent obtained, and consent signed
- subject covered by a state insurance scheme
- women and men aged 12 to 30
- subject affected by cystic fibrosis, carrier of two severe mutations in trans (in the same allele) in the CFTR gene
- subject able to realize a spirometry before and during the study
Who cannot join
- subject in an exclusion period of a previous study
- subject placed under judicial protection, guardianship or supervision
- impossibility to give informed information to the subject
- subject who does not read fluently French
- pregnancy
- breastfeeding
- transplanted subject
Trial locations and contacts
1 site in 1 country.
About this study
The general aims of this project are (i) to identify predictive epigenetic biomarkers of lung disease severity in Cystic Fibrosis, (ii) to characterize a non-invasive cellular model, spontaneous sputum, for the analysis of these epigenetic biomarkers, (iii) to analyze the variations in DNA methylation for a same patient over time.
Read the detailed description
Cystic Fibrosis (CF) is an autosomal recessive disease resulting from mutations in the CFTR gene. CFTR encodes a chloride channel, mainly expressed at the apical membrane of epithelial cells. CFTR dysfunction induces mucus thickening, causing multiple disorders in respiratory, digestive and reproductive tracts. In CF patients, lung disease is the main cause of morbidity and mortality, and its severity is variable among CF patients, even among those with the same genotype. This clinical variability depends on two factors: genetic (complex alleles of CFTR gene and modifier genes) and environmental factors. Genetic factors have been largely explored, and several modifier genes have been identified. By contrast, environmental factors are still poorly known. It is well established that environmental factors modify the phenotype by acting on epigenetic marks (i.e. DNA methylation, histone modification) present in the genome. Epigenetic modifications regulate and modulate gene expression.
In a previous we profiled DNA methylation genome-wide in nasal epithelial cell samples from 32 CF patients and 24 healthy controls. CF patients homozygous for the p.Phe508del mutation and >18-years-old were stratified according to the lung disease severity. Through this study, we identified 187 genomic regions (CpG dinucleotides) differentially methylated between CF patients with mild lung disease and CF patients with severe lung disease. The present project aims at identifying predictive epigenetic biomarkers of lung disease severity, among these 187 regions. While the previous study was carried out on genomic DNA extracted from nasal epithelial cells, in the present project we will use a non-invasive model: spontaneous sputum.
Hypothesis: some differentially methylated genomic regions between mild and severe CF patients can be used as predictive epigenetic biomarkers of lung disease severity in cystic fibrosis.
Objectives: (i) to identify predictive epigenetic biomarkers of lung disease severity among the differentially methylated genomic regions between mild and severe CF patients, (ii) to characterize a non-invasive cellular model, spontaneous sputum, for the analysis of epigenetic biomarkers of lung disease severity in CF, (iii) to analyze the variations in DNA methylation for a same patient over time (at time of inclusion, 6 months, 12 months and 18 months)
- Conditions
- Cystic Fibrosis
- Being tested
- spontaneous sputum
- Keywords
- Cystic Fibrosis, Lung disease, DNA methylation, Predictive biomarkers
- Medical subject headings
- Cystic Fibrosis, Lung Diseases
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
spontaneous sputumOther
CF patients carry a spontaneous sputum that is made in the context of bronchial drainage sessions conducted as part of usual care (inclusion, 6 months, 12 months, 18 months).
The collection of spontaneous sputum is carried out within the bronchial drainage sessions, which are routinely performed at each visit. The spontaneous sputum is collected in a sterile container. In order not to contaminate the sputum with buccal epithelial cells will be asked patients to rinse the mouth before expectorate.
| Study group | Role | What they receive |
|---|---|---|
| CF patients | Other | CF patients carry a spontaneous sputum that is made in the context of bronchial drainage sessions conducted as part of usual care. Receives: Other: spontaneous sputum |
What is being measured
The primary outcome is the main question the study is designed to answer.
DNA methylation
Spontaneous expectoration at baseline
Measured: at time of inclusion
DNA methylation
Spontaneous expectoration at 6 months
Measured: 6 months
DNA methylation
Spontaneous expectoration at 12 months
Measured: 12 months
DNA methylation
Spontaneous expectoration at 18 months
Measured: 18 months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted29 Nov 2016 (estimated)
- Study start12 Dec 2016
- Primary completion13 Jul 2021
- Study completion13 Jul 2021
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (26)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 University Hospital, MontpellierThe 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
- Prevention
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 50 participants (actual)
Sponsor and investigators
- Lead sponsor
- University Hospital, Montpellier
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Davide CAIMMI, Principal investigator, University Hospital, Montpellier
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT02976714
- Sponsor's protocol ID
- RECHMPL16_0256
- Acronym
- MethylBiomark
- Status last verified
- Mar 2026
- First submitted
- 8 Nov 2016
- Last updated
- 2 Apr 2026
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Undecided
Publications
Audrezet MP, Munck A, Scotet V, Claustres M, Roussey M, Delmas D, Ferec C, Desgeorges M. Comprehensive CFTR gene analysis of the French cystic fibrosis screened newborn cohort: implications for diagnosis, genetic counseling, and mutation-specific therapy. Genet Med. 2015 Feb;17(2):108-16. doi: 10.1038/gim.2014.113. Epub 2014 Aug 14.
PubMed 25122143Bergougnoux A, Rivals I, Liquori A, Raynal C, Varilh J, Magalhaes M, Perez MJ, Bigi N, Des Georges M, Chiron R, Squalli-Houssaini AS, Claustres M, De Sario A. A balance between activating and repressive histone modifications regulates cystic fibrosis transmembrane conductance regulator (CFTR) expression in vivo. Epigenetics. 2014 Jul;9(7):1007-17. doi: 10.4161/epi.28967. Epub 2014 Apr 29.
PubMed 24782114Bergougnoux A, Claustres M, De Sario A. Nasal epithelial cells: a tool to study DNA methylation in airway diseases. Epigenomics. 2015;7(1):119-26. doi: 10.2217/epi.14.65.
PubMed 25687471Besaratinia A, Maas LM, Brouwer EM, Kleinjans JC, Van Schooten FJ. Comparison between smoking-related DNA adduct analysis in induced sputum and peripheral blood lymphocytes. Carcinogenesis. 2000 Jul;21(7):1335-40. doi: 10.1093/carcin/21.7.1335.
PubMed 10874011Brennan ML, Schrijver I. Cystic Fibrosis: A Review of Associated Phenotypes, Use of Molecular Diagnostic Approaches, Genetic Characteristics, Progress, and Dilemmas. J Mol Diagn. 2016 Jan;18(1):3-14. doi: 10.1016/j.jmoldx.2015.06.010. Epub 2015 Nov 26.
PubMed 26631874Clarke LA, Sousa L, Barreto C, Amaral MD. Changes in transcriptome of native nasal epithelium expressing F508del-CFTR and intersecting data from comparable studies. Respir Res. 2013 Mar 28;14(1):38. doi: 10.1186/1465-9921-14-38.
PubMed 23537407Collaco JM, Blackman SM, McGready J, Naughton KM, Cutting GR. Quantification of the relative contribution of environmental and genetic factors to variation in cystic fibrosis lung function. J Pediatr. 2010 Nov;157(5):802-7.e1-3. doi: 10.1016/j.jpeds.2010.05.018. Epub 2010 Jun 30.
PubMed 20580019Corvol H, Thompson KE, Tabary O, le Rouzic P, Guillot L. Translating the genetics of cystic fibrosis to personalized medicine. Transl Res. 2016 Feb;168:40-49. doi: 10.1016/j.trsl.2015.04.008. Epub 2015 Apr 15.
PubMed 25940043Cutting GR. Modifier genes in Mendelian disorders: the example of cystic fibrosis. Ann N Y Acad Sci. 2010 Dec;1214:57-69. doi: 10.1111/j.1749-6632.2010.05879.x.
PubMed 21175684Eckrich J, Zissler UM, Serve F, Leutz P, Smaczny C, Schmitt-Grohe S, Fussbroich D, Schubert R, Zielen S, Eickmeier O. Airway inflammation in mild cystic fibrosis. J Cyst Fibros. 2017 Jan;16(1):107-115. doi: 10.1016/j.jcf.2016.05.016. Epub 2016 Jun 11.
PubMed 27296563Efthimiadis A, Spanevello A, Hamid Q, Kelly MM, Linden M, Louis R, Pizzichini MM, Pizzichini E, Ronchi C, Van Overvel F, Djukanovic R. Methods of sputum processing for cell counts, immunocytochemistry and in situ hybridisation. Eur Respir J Suppl. 2002 Sep;37:19s-23s. doi: 10.1183/09031936.02.00001902. No abstract available.
PubMed 12361358Gu Y, Harley IT, Henderson LB, Aronow BJ, Vietor I, Huber LA, Harley JB, Kilpatrick JR, Langefeld CD, Williams AH, Jegga AG, Chen J, Wills-Karp M, Arshad SH, Ewart SL, Thio CL, Flick LM, Filippi MD, Grimes HL, Drumm ML, Cutting GR, Knowles MR, Karp CL. Identification of IFRD1 as a modifier gene for cystic fibrosis lung disease. Nature. 2009 Apr 23;458(7241):1039-42. doi: 10.1038/nature07811. Epub 2009 Feb 25.
PubMed 19242412Guzman L, Depix MS, Salinas AM, Roldan R, Aguayo F, Silva A, Vinet R. Analysis of aberrant methylation on promoter sequences of tumor suppressor genes and total DNA in sputum samples: a promising tool for early detection of COPD and lung cancer in smokers. Diagn Pathol. 2012 Jul 20;7:87. doi: 10.1186/1746-1596-7-87.
PubMed 22818553Hanrahan JW, Sampson HM, Thomas DY. Novel pharmacological strategies to treat cystic fibrosis. Trends Pharmacol Sci. 2013 Feb;34(2):119-25. doi: 10.1016/j.tips.2012.11.006.
PubMed 23380248Magalhaes M, Rivals I, Claustres M, Varilh J, Thomasset M, Bergougnoux A, Mely L, Leroy S, Corvol H, Guillot L, Murris M, Beyne E, Caimmi D, Vachier I, Chiron R, De Sario A. DNA methylation at modifier genes of lung disease severity is altered in cystic fibrosis. Clin Epigenetics. 2017 Feb 14;9:19. doi: 10.1186/s13148-016-0300-8. eCollection 2017.
PubMed 28289476
Study at a glance
From the registry record, last updated by the sponsor on 2 Apr 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Identification of Predictive Epigenetic Biomarkers of Lung Disease Severity in Cystic Fibrosis
- ClinicalTrials.gov ID
- NCT02976714
- Acronym / sponsor ID
- MethylBiomark / RECHMPL16_0256
- Conditions
- Cystic Fibrosis
- Keywords
- Cystic Fibrosis, Lung disease, DNA methylation, Predictive biomarkers
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 50 participants (actual)
- Lead sponsor
- University Hospital, MontpellierUniversity, hospital or other
- Study start
- 12 Dec 2016 (actual)
- Primary completion
- 13 Jul 2021 (actual)
- Study completion
- 13 Jul 2021 (actual)
- First posted
- 29 Nov 2016 (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.
The general aims of this project are (i) to identify predictive epigenetic biomarkers of lung disease severity in Cystic Fibrosis, (ii) to characterize a non-invasive cellular model, spontaneous sputum, for the analysis of these epigenetic biomarkers, (iii) to analyze the variations in DNA methylation for a same patient over time.
Detailed description
Cystic Fibrosis (CF) is an autosomal recessive disease resulting from mutations in the CFTR gene. CFTR encodes a chloride channel, mainly expressed at the apical membrane of epithelial cells. CFTR dysfunction induces mucus thickening, causing multiple disorders in respiratory, digestive and reproductive tracts. In CF patients, lung disease is the main cause of morbidity and mortality, and its severity is variable among CF patients, even among those with the same genotype. This clinical variability depends on two factors: genetic (complex alleles of CFTR gene and modifier genes) and environmental factors. Genetic factors have been largely explored, and several modifier genes have been identified. By contrast, environmental factors are still poorly known. It is well established that environmental factors modify the phenotype by acting on epigenetic marks (i.e. DNA methylation, histone modification) present in the genome. Epigenetic modifications regulate and modulate gene expression.
In a previous we profiled DNA methylation genome-wide in nasal epithelial cell samples from 32 CF patients and 24 healthy controls. CF patients homozygous for the p.Phe508del mutation and >18-years-old were stratified according to the lung disease severity. Through this study, we identified 187 genomic regions (CpG dinucleotides) differentially methylated between CF patients with mild lung disease and CF patients with severe lung disease. The present project aims at identifying predictive epigenetic biomarkers of lung disease severity, among these 187 regions. While the previous study was carried out on genomic DNA extracted from nasal epithelial cells, in the present project we will use a non-invasive model: spontaneous sputum.
Hypothesis: some differentially methylated genomic regions between mild and severe CF patients can be used as predictive epigenetic biomarkers of lung disease severity in cystic fibrosis.
Objectives: (i) to identify predictive epigenetic biomarkers of lung disease severity among the differentially methylated genomic regions between mild and severe CF patients, (ii) to characterize a non-invasive cellular model, spontaneous sputum, for the analysis of epigenetic biomarkers of lung disease severity in CF, (iii) to analyze the variations in DNA methylation for a same patient over time (at time of inclusion, 6 months, 12 months and 18 months)
Study design
- Primary purpose
- Prevention
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| CF patients | Other | Other: spontaneous sputumCF patients carry a spontaneous sputum that is made in the context of bronchial drainage sessions conducted as part of usual care. |
Who may qualify
- Ages
- 12 to 30 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult
Key inclusion criteria (5 listed)
- free and informed consent obtained, and consent signed
- subject covered by a state insurance scheme
- women and men aged 12 to 30
- subject affected by cystic fibrosis, carrier of two severe mutations in trans (in the same allele) in the CFTR gene
- subject able to realize a spirometry before and during the study
Key exclusion criteria (7 listed)
- subject in an exclusion period of a previous study
- subject placed under judicial protection, guardianship or supervision
- impossibility to give informed information to the subject
- subject who does not read fluently French
- pregnancy
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 |
|---|---|---|
| spontaneous sputumCF patients carry a spontaneous sputum that is made in the context of bronchial drainage sessions conducted as part of usual care (inclusion, 6 months, 12 months, 18 months). The collection of spontaneous sputum is carried out within the bronchial drainage sessions, which are routinely performed at each visit. The spontaneous sputum is collected in a sterile container. In order not to contaminate the sputum with buccal epithelial cells will be asked patients to rinse the mouth before expectorate. | Other | CF patients |
Primary outcome
DNA methylation
Time frame: at time of inclusion
Spontaneous expectoration at baseline
DNA methylation
Time frame: 6 months
Spontaneous expectoration at 6 months
DNA methylation
Time frame: 12 months
Spontaneous expectoration at 12 months
DNA methylation
Time frame: 18 months
Spontaneous expectoration at 18 months
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 2 Apr 2026.
- Background: PubMed 25122143Audrezet MP, Munck A, Scotet V, Claustres M, Roussey M, Delmas D, Ferec C, Desgeorges M. Comprehensive CFTR gene analysis of the French cystic fibrosis screened newborn cohort: implications for diagnosis, genetic counseling, and mutation-specific therapy. Genet Med. 2015 Feb;17(2):108-16. doi: 10.1038/gim.2014.113. Epub 2014 Aug 14.
- Background: PubMed 24782114Bergougnoux A, Rivals I, Liquori A, Raynal C, Varilh J, Magalhaes M, Perez MJ, Bigi N, Des Georges M, Chiron R, Squalli-Houssaini AS, Claustres M, De Sario A. A balance between activating and repressive histone modifications regulates cystic fibrosis transmembrane conductance regulator (CFTR) expression in vivo. Epigenetics. 2014 Jul;9(7):1007-17. doi: 10.4161/epi.28967. Epub 2014 Apr 29.
- Background: PubMed 25687471Bergougnoux A, Claustres M, De Sario A. Nasal epithelial cells: a tool to study DNA methylation in airway diseases. Epigenomics. 2015;7(1):119-26. doi: 10.2217/epi.14.65.
- Background: PubMed 10874011Besaratinia A, Maas LM, Brouwer EM, Kleinjans JC, Van Schooten FJ. Comparison between smoking-related DNA adduct analysis in induced sputum and peripheral blood lymphocytes. Carcinogenesis. 2000 Jul;21(7):1335-40. doi: 10.1093/carcin/21.7.1335.
- Background: PubMed 26631874Brennan ML, Schrijver I. Cystic Fibrosis: A Review of Associated Phenotypes, Use of Molecular Diagnostic Approaches, Genetic Characteristics, Progress, and Dilemmas. J Mol Diagn. 2016 Jan;18(1):3-14. doi: 10.1016/j.jmoldx.2015.06.010. Epub 2015 Nov 26.
- Background: PubMed 23537407Clarke LA, Sousa L, Barreto C, Amaral MD. Changes in transcriptome of native nasal epithelium expressing F508del-CFTR and intersecting data from comparable studies. Respir Res. 2013 Mar 28;14(1):38. doi: 10.1186/1465-9921-14-38.
- Background: PubMed 20580019Collaco JM, Blackman SM, McGready J, Naughton KM, Cutting GR. Quantification of the relative contribution of environmental and genetic factors to variation in cystic fibrosis lung function. J Pediatr. 2010 Nov;157(5):802-7.e1-3. doi: 10.1016/j.jpeds.2010.05.018. Epub 2010 Jun 30.
- Background: PubMed 25940043Corvol H, Thompson KE, Tabary O, le Rouzic P, Guillot L. Translating the genetics of cystic fibrosis to personalized medicine. Transl Res. 2016 Feb;168:40-49. doi: 10.1016/j.trsl.2015.04.008. Epub 2015 Apr 15.
- Background: PubMed 21175684Cutting GR. Modifier genes in Mendelian disorders: the example of cystic fibrosis. Ann N Y Acad Sci. 2010 Dec;1214:57-69. doi: 10.1111/j.1749-6632.2010.05879.x.
- Background: PubMed 27296563Eckrich J, Zissler UM, Serve F, Leutz P, Smaczny C, Schmitt-Grohe S, Fussbroich D, Schubert R, Zielen S, Eickmeier O. Airway inflammation in mild cystic fibrosis. J Cyst Fibros. 2017 Jan;16(1):107-115. doi: 10.1016/j.jcf.2016.05.016. Epub 2016 Jun 11.
- Background: PubMed 12361358Efthimiadis A, Spanevello A, Hamid Q, Kelly MM, Linden M, Louis R, Pizzichini MM, Pizzichini E, Ronchi C, Van Overvel F, Djukanovic R. Methods of sputum processing for cell counts, immunocytochemistry and in situ hybridisation. Eur Respir J Suppl. 2002 Sep;37:19s-23s. doi: 10.1183/09031936.02.00001902. No abstract available.
- Background: PubMed 19242412Gu Y, Harley IT, Henderson LB, Aronow BJ, Vietor I, Huber LA, Harley JB, Kilpatrick JR, Langefeld CD, Williams AH, Jegga AG, Chen J, Wills-Karp M, Arshad SH, Ewart SL, Thio CL, Flick LM, Filippi MD, Grimes HL, Drumm ML, Cutting GR, Knowles MR, Karp CL. Identification of IFRD1 as a modifier gene for cystic fibrosis lung disease. Nature. 2009 Apr 23;458(7241):1039-42. doi: 10.1038/nature07811. Epub 2009 Feb 25.
- Individual participant dataSharing planned: Undecided
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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.
Davide CAIMMI principal investigator
University Hospital, Montpellier
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing spontaneous sputum in people with Cystic Fibrosis, run by University Hospital, Montpellier 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 5 inclusion and 7 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 2 Apr 2026. 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?
DNA methylation (time frame: at time of inclusion). The study lists 4 primary outcomes in all. 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 NCT02976714, which also lists 26 linked publications.
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 2 Apr 2026.