Modeling Bronchial Epithelium Modifications Associated With COPD Using iPS (INVECCO)

September 7, 2023 updated by: University Hospital, Montpellier

Modeling Bronchial Epithelia Modifications Associated With Chronic Obstructive Pulmonary Disease (COPD) Using Induced Pluripotent Stemcells (iPS)

The primary objective of this study is to to verify the feasibility of obtaining and comparing two epithelia in two populations based on the following experiments:

  • Differentiation of an Induced Pluripotent Stem cell (iPS) clone derived from cutaneous biopsy in a population of heavy smokers (plus patients with chronic obstructive pulmonary disease) in order to obtain differentiated bronchial epithelia in vitro.
  • For each of these same patients, generation of bronchial epithelium in vitro from bronchial biopsy using human bronchial epithelial cells (HBECs) in air-liquid interface (ALI) cultures.

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

Secondary objectives:

  • Confrontation of the two models of in vitro generation of bronchial epithelium by iPS and ALI in order to validate our model of study of the human bronchial epithelium COPD generated by the iPS.
  • Inducing a "COPD-like" epithelial phenotype by exposing the bronchial epithelia generated from the iPS to a source of in vitro toxin (tobacco) and studying its effects by transcriptomic analysis via high-throughput sequencing (NGS) at key steps during the model.
  • Demonstrate the feasibility of obtaining iPS from peripheral blood sampling.

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.
11

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

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • France
      • Montpellier, France, 34295
        • Centre Hospitalier Universitaire De Montpellier

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

18 years to 55 years (Adult)

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

This study includes patients with chronic obstructive pulmonary disease, as well as patients without chronic obstructive pulmonary disease, but who are heavy smokers.

Description

Inclusion Criteria for COPD patients:

  • The patient has given his/her signed, informed consent
  • Forced expiratory volume in 1 second / forced vital capacity < 0.7 [FEV1/FVC < 0.7]
  • FEV1 < 50% of predicted value
  • Exclusion of other respiratory pathologies, based on anamnesis, computed tomography and complementary respiratory function tests and transthoracic ultrasound,
  • Smoking >10 pack-years, ongoing or weaned
  • Absence of exacerbation or intercurrent infectious episode for at least 4 weeks at time of inclusion
  • Medical indication for a bronchial fibroscopy (indication validated by the physician in charge of the patient and the study investigating physician): pulmonary peripheral nodule exploration with computed tomography, interventional endoscopy for emphysema reduction, removal of foreign bodies, other indications.
  • Absence of contraindications for bronchial biopsy (left to physician's discretion): not limited to: regular intake of anticoagulants or anti-platelet aggregation, hemostasis abnormalities

Inclusion Criteria for smokers:

  • The patient has given his/her signed, informed consent
  • Forced expiratory volume in 1 second / forced vital capacity > 0.7 [FEV1/FVC > 0.7]
  • FEV1 > 80% of predicted value
  • Exclusion of other respiratory pathologies, based on anamnesis, computed tomography (absence of extensive emphysema lesions defined by the presence of less than <5% relative surface area occupied by densities less than 910 UH (measured on millimeter cuts)) and respiratory function tests (Residual Volume <120%, Diffusion Capacity for Carbon Monoxide > 60% and Total Pulmonary Capacity> 120%) and transthoracic ultrasound (normal),
  • Smoking >40 pack-years, ongoing or weaned
  • Absence of exacerbation or intercurrent infectious episode for at least 4 weeks at time of inclusion
  • Medical indication for a bronchial fibroscopy (indication validated by the physician in charge of the patient and the study investigating physician): pulmonary peripheral nodule exploration with computed tomography, interventional endoscopy for emphysema reduction, removal of foreign bodies, other indications.
  • Absence of contraindications for bronchial biopsy (left to physician's discretion): not limited to: regular intake of anticoagulants or anti-platelet aggregation, hemostasis abnormalities

Exclusion Criteria:

  • Contra-indication for bronchial fibroscopy and cutaneous biopsy
  • Deficiency in α-1 antitrypsin
  • Significant bronchiectasis on chest computed tomography scan
  • Colonization of the airways by Pseudomonas Aeroginosa or Aspergillus
  • Chemotherapy or other cytotoxic treatments in the last 12 months
  • Systemic corticotherapy in the 4 weeks prior to inclusion
  • Long-term antibiotic treatment, notably by macrolides
  • Any other treatment that may affect the bronchial epithelium, this being left to the discretion of the investigating physician
  • Consumer of illicit drugs or alcohol
  • Participant in an exclusion period determined by a previous study
  • Subject not affiliated with, or not beneficiary of, a social security plan.
  • Pregnant or nursing women according to Article L1121-5 of the Public Health Code.
  • Vulnerable persons according to Article L1121-6 of the Public Health Code
  • An adult who is protected or incapable of giving consent in accordance with Article L1121-8 of the Public Health Code
  • Subject deprived of freedom by judicial or administrative decision.
  • Those patients for whom two epithelia cultures (1 from bronchial biopsy ("ALI") and 1 from fibroblast reprogrammation of redifferentiated iPS ("iALI")) were not obtained will be excluded (post-inclusion).

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: Other
  • Time Perspectives: Cross-Sectional

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.
Patients likely to develop COPD

Patients in this group are relatively light smokers who have developed chronic obstructive lung disease (COPD).

Intervention: Bronchial biopsy

Intervention: Skin biopsy

Intervention: Blood sample
Procedure: Bronchial biopsy
The bronchial biopsy is part of this study's inclusion criteria and is required during routine care for the patient. Bronchial fibroscopy is performed under general or local anesthesia. Biopsies are performed using forceps and according to current recommendations. One biopsy will be fixed immediately in RCL2 medium while the others (between 3 and 6) will be kept in isotonic saline and rapidly prepared for air-liquid-interface (ALI) cell culture.
Procedure: Skin biopsy
The skin biopsy will be performed after local anesthesia by hypodermic injection of a 1% Xylocaine solution. A single sample of a skin fragment about 3 mm in diameter will be necessary.
Procedure: Blood sample
The blood sample will be taken at the end of the cutaneous biospy, approximately 20 ml of blood will be collected.
Patients not likely to develop COPD

Patients in this group are heavy smokers who have no signs of chronic obstructive lung disease (COPD).

Intervention: Bronchial biopsy

Intervention: Skin biopsy

Intervention: Blood sample
Procedure: Bronchial biopsy
The bronchial biopsy is part of this study's inclusion criteria and is required during routine care for the patient. Bronchial fibroscopy is performed under general or local anesthesia. Biopsies are performed using forceps and according to current recommendations. One biopsy will be fixed immediately in RCL2 medium while the others (between 3 and 6) will be kept in isotonic saline and rapidly prepared for air-liquid-interface (ALI) cell culture.
Procedure: Skin biopsy
The skin biopsy will be performed after local anesthesia by hypodermic injection of a 1% Xylocaine solution. A single sample of a skin fragment about 3 mm in diameter will be necessary.
Procedure: Blood sample
The blood sample will be taken at the end of the cutaneous biospy, approximately 20 ml of blood will be collected.

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
functional bronchial epithelium from iPS?
Time Frame: Day 0 + culture (cross-sectional study)
Was a functional bronchial epithelium obtained from the patient's induced pluripotent stem cells from blood or fibroblasts? (yes/no)
Day 0 + culture (cross-sectional study)
functional bronchial epithelium from HBEC-ALI?
Time Frame: Day 0 + culture (cross-sectional study)
Was a functional bronchial epithelium obtained from the patient's bronchial biopsy: human bronchial epithelial cell culture on an air-liquid-interface? (yes/no)
Day 0 + culture (cross-sectional study)

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.
University Hospital, Montpellier

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.
  • Study Director: Arnaud Bourdin, MD, PhD, University Hospital, Montpellier

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

Helpful Links

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.
August 7, 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.
March 9, 2022

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.
March 9, 2022

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).
June 6, 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.
June 6, 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.
June 8, 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 8, 2023

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 7, 2023

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, 2023

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.
  • 9791
  • 2017-A00252-51 (Other Identifier: RCB number)

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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