- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04286464
Early Environmental and Maternal Determinants of Airway Inflammation in Wheezing Disorders in Infants
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Background:
Lung development and growth is a complexly orchestrated process starting prenatally in the first embryonic weeks, and ending, with the last important stages of alveolarization from the 24th week onwards. By the time of birth, around one third of the total amount of alveoli has developed, while the rest develops during infancy and childhood. After birth, lung volume, airways and the gas-exchanging surface increase by a multiple, reaching the maximum lung size at around 25 years of age. A comprehensive understanding of lung growth and development is crucial in order to understand the pathophysiology of lung diseases. During childhood and ongoing lung growth, an important amount of respiratory diseases might develop.
Objectives:
Longitudinal assessment of lung growth and development, to examine respiratory morbidity such as Asthma and allergy, and the complex relationship between associated Risk factors mainly genetic predisposition and environmental factors on both lung development and subsequent respiratory morbidity, Therefore, longitudinal data on lung function and structure, on respiratory morbidity and on genetic, immunological, microbiological and environmental risk factors will be collected.
Methods:
Recruitment and participation:
Participants will be recruited antenatal through advertisement placed at gynaecological Hospital in Bern and by obstetricians or midwives. Interested participants can get further information about the study by telephone from study nurses, as well as during the baseline visit at the University Children's Hospital in Bern, respectively. Mothers with a high risk of a preterm delivery will be informed by clinical Investigators at the Department of Obstetrics of the University Hospital Bern. Preterm infants, which receive ventilatory support over a long period are at Risk for chronical lung diseases in early childhood, named bronchopulmonary dysplasia (BPD). The recruitment of this infants will take place at the neonatology intensive care unit by clinical Investigators. On average 40 healthy children, 40 preterm children and 20 infants from risk pregnancies will be recruited as participants of the BILD cohort each year for Study Phase I. At 3, 6, 9, 12, 15 years and once after the 16th year of age the parents/participants will be asked again, if they would like to participate at the follow-up visits at the University Children's Hospital in Bern for the subsequent Study Phases II and III.
Information collected:
Lung function data:
- Tidal breathing parameters (minute ventilation, respiratory rate, tidal volume, tidal expiratory flow, tidal inspiratory flow, time to peak expiratory flow) averaged over 100 breaths.
- Multiple breath washout (FRC, LCI, moment ratios) and single breath washout (molar mass)
- Fractional exhaled nitric oxide (marker of airway inflammation)
- Spirometric forced expiratory volume loops (FVC, FEV1, PEF, MEF50)
- Body plethysmography (airway resistance, lung volumes: TLC, FRC, RV)
- Respiratory Rate over 60 seconds
- Interrupter resistance measurement (RINT)
- Volatile organic compounds
- Forced oscillation technique (FOT)
- Electrical impedance tomography (EIT)
- Impedance plethysmography (IP)
Microbiological data:
- Nasal swabs (respiratory virus and bacterial diagnostics, as well as host transcriptome Analysis)
- Pharyngeal swabs (bacterial colonization and microbiota Analysis)
- Anterior nasal and oropharyngeal swabs (viral, bacterial and host transcriptome Analysis)
- Nasal brush
- Sputum (to analyse the neutrophils)
Cord blood (mononuclear cells (CBMC) (e.g. lymphocytes)which regulate the innate and adaptive immunity)
Blood count (hemoglobin concentration, hematocrit, leukocyte number, lymphocyte number, lymphocyte count, eosinophil count, basophil count, monocyte count, promyelocyte count, myelocyte count, platelet count, immunoglobulin E Level, Interleukins, Granulocyte-Monocyte-Colony Forming Unit, Tumor Necrosis Factor alpha, Interferon gamma and Interferon lambda)
Urin (to estimate the tobacco exposure during pregnancy (amount of Cotinine) and the content of caffeine and Steroid profile)
Lung function MRI: functional and structural images of the lung
Environmental pollution (Level of particulate matter <10um, Nitrogen dioxide, ozone and particulate matter <2.5um)
Skin-Prick Test (test for pollen, trees, house dust mite, cat and dog)
Questionnaires (to assess quality of life)
Medical history (information on respiratory Symptoms, pulmonary exacerbations, hospitalisations and regular therapy)
Study database:
All study data is recorded in an Access-database with SQL Servers by electronic Case Report Forms. The database is accordant to the HFG and was adapted together with the CTU.
Funding:
Schweizerischer Nationalfonds (SNF) and Departement Lehre und Forschung of the Inselspital Bern.
Study Type
Enrollment (Anticipated)
Contacts and Locations
Study Locations
-
-
-
Bern, Switzerland, 3010
- University Children's Hospital
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
- Child
- Adult
- Older Adult
Accepts Healthy Volunteers
Genders Eligible for Study
Sampling Method
Study Population
Description
Inclusion Criteria:
- Term Born group (H): Healthy, white and term Born infants and Children. Born 38-42 weeks postconceptional.
- Preterm group (P): Healthy, white preterm Born infants and Children. Born <37 weeks postconceptional. Which comply with the international criteria (Jobe and Bancalari) of a diagnosis of bronchopulmonary dysplasia (BPD), or of chronic lung disease of the new-born (CLD).
- Risk pregnancy group (RP): White preterm Born infants and Children, including Twins. Born <37 weeks postconceptional. With fetal growth restriction (FGR), intrauterine growth restriction (IUGR) or preeclampsia (PE). With gestational Diabetes (GMD). With IVF or Amnion dysfunction.
- Parents: language skills in German or French (by at least one parent).
- Both of the parents can be Smokers and may be atopics (allergy of the mother and/or the Father).
- Signed, written informed consent of the parents.
Exclusion Criteria:
- Term Born group (H): Need of respiratory support > three days postnatal. Severe malformations or known diseases. Maternal drug abuse except smoking. Known sever maternal disease postpartum. Insufficient Knowledge of Project language (no German or French speaker). Pacemaker, continuous glucose monitor.
- Preterm group (P): Severe malformations or known diseases. Maternal drug abuse except smoking. Known severe maternal disease postpartum. Insufficient Knowledge of Project language (no German or French speaker). Pacemaker, continuous glucose monitor.
- Risk pregnancy group (RP): Insufficient Knowledge of Project language (no German or French speaker). Concurrent participation in another study. Participants, which lead to heterogeneity in genetic analysis and thus preclude any findings.
Study Plan
How is the study designed?
Design Details
- Observational Models: Cohort
- Time Perspectives: Prospective
Cohorts and Interventions
Group / Cohort |
Intervention / Treatment |
---|---|
Term born group (H)
Healthy, white and term Born infants and Children Born 38-42 weeks postconceptional
|
No intervention
|
Preterm group (P)
Healthy, white preterm Born infants and Children Born <37 weeks postconceptional Which comply with the international criteria (Jobe and Bancalari) of a diagnosis of bronchopulmonary dysplasia (BPD), or of chronic lung disease of the new-born (CLD)
|
No intervention
|
Risk pregnancy group (RP)
White preterm Born infants and Children, including Twins Born <37 weeks postconceptional With fetal growth restriction (FGR), intrauterine growth restriction (IUGR) or preeclampsia (PE) With gestational Diabetes (GDM) With IVF or Amnion dysfunction
|
No intervention
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change in Multiple Breath Washout
Time Frame: Every third year from the age of 4-6 weeks/1 year till >16 years.
|
Longitudinal assessment of lung volume and ventilation inhomogeneity
|
Every third year from the age of 4-6 weeks/1 year till >16 years.
|
Change in Spirometry
Time Frame: Every third year from the age of 4-6 weeks/1 year till >16 years
|
Longitudinal assessment of long volumes
|
Every third year from the age of 4-6 weeks/1 year till >16 years
|
Change in Body plethysmography
Time Frame: Every third year from the age of 4-6 weeks/1 year till >16 years.
|
Longitudinal assessment of ventilation inhomogeneity.
|
Every third year from the age of 4-6 weeks/1 year till >16 years.
|
Change in Magnetic Resonance Imaging (MRI)
Time Frame: At the age of 4-6 weeks, 1, 3, 6, 9, 12, 15 and >16 years.
|
Longitudinal assessment of regional lung perfusion and ventilation
|
At the age of 4-6 weeks, 1, 3, 6, 9, 12, 15 and >16 years.
|
Change in Nasal swabs
Time Frame: At the age of 4-6 weeks, 1, 3, 6, 9, 12, 15 and >16 years.
|
Longitudinal assessment of viral and bacterial colonization of the nasal swab
|
At the age of 4-6 weeks, 1, 3, 6, 9, 12, 15 and >16 years.
|
Change in Weekly swabs
Time Frame: Weekly from the visit at the age of 8-12 weeks till the age of 1 year.
|
Respiratory virus and bacterial diagnostic
|
Weekly from the visit at the age of 8-12 weeks till the age of 1 year.
|
Swabs during respiratory infection
Time Frame: Any timepoint between the visit at the age of 4-6 weeks till the age of 1 year.
|
Respiratory viruses and Bacteria, changes of the microbial flora
|
Any timepoint between the visit at the age of 4-6 weeks till the age of 1 year.
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Respiratory Rate (RR)
Time Frame: From the visit at the age of 4-6 weeks till the age of 1 year.
|
The number of breaths over 60 seconds
|
From the visit at the age of 4-6 weeks till the age of 1 year.
|
Urine
Time Frame: At the age of 4-6 weeks.
|
Estimation of tobacco exposure during pregnancy.
|
At the age of 4-6 weeks.
|
Cord blood
Time Frame: At birth.
|
Assessment of mononuclear cells, which regulate the innate and adaptive immunity.
|
At birth.
|
Capillary blood markers
Time Frame: At the age of 1, 3, 6, 9, 12, 15 and >16 years.
|
Assessment of blood markers.
|
At the age of 1, 3, 6, 9, 12, 15 and >16 years.
|
Skin Prick Test
Time Frame: At the age of 3, 6, 9, 12, 15 and >16 years.
|
Assessment of the history of atopy and allergy
|
At the age of 3, 6, 9, 12, 15 and >16 years.
|
Environmental pollution markers
Time Frame: At the age of 4-6 weeks, 1, 3, 6, 9, 12, 15 and >16 years.
|
Level of particulate matter <10um, Nitrogen dioxide, ozone and particulate matter <2.5um.
|
At the age of 4-6 weeks, 1, 3, 6, 9, 12, 15 and >16 years.
|
Volatile organic compound markers
Time Frame: At the age of 4-6 weeks, 1, 3, 6, 9, 12, 15 and >16 years.
|
Real-time Analysis of gases.
|
At the age of 4-6 weeks, 1, 3, 6, 9, 12, 15 and >16 years.
|
Oropharyngeal swabs
Time Frame: At the age of 1, 3, 6, 9, 12, 15 and >16 years.
|
Longitudinal assessment of viral and bacterial colonization.
|
At the age of 1, 3, 6, 9, 12, 15 and >16 years.
|
Nasal brushes
Time Frame: At the age of 1, 3, 6, 9, 12, 15 and >16 years.
|
Longitudinal assessment of viral and bacterial colonization.
|
At the age of 1, 3, 6, 9, 12, 15 and >16 years.
|
Sputum
Time Frame: At the age of (3), 6, 9, 12, 15 and >16 years.
|
Longitudinal assessment of the sputum neutrophils.
|
At the age of (3), 6, 9, 12, 15 and >16 years.
|
Collaborators and Investigators
Investigators
- Principal Investigator: Philipp Latzin, MD PhD, University Children's hospital Bern
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Anticipated)
Study Completion (Anticipated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- BILD
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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.
Clinical Trials on Healthy Volunteers
-
AstraZenecaCompletedHealthy Elderly Volunteers | Healthy Young VolunteersUnited States
-
Syndax PharmaceuticalsCompletedHealthy Volunteers | Volunteers | Normal Volunteers | Human VolunteersUnited States
-
Syndax PharmaceuticalsCompletedHealthy Volunteers | Volunteers | Normal Volunteers | Human VolunteersUnited States
-
University Hospital, Clermont-FerrandUnite de Nutrition Humaine UMR 1019- INRAE; Unite MetaGenoPolis INRAE; France...CompletedHealthy Volunteers | Frail VolunteersFrance
-
Galera Therapeutics, Inc.CelerionCompletedHealthy | Healthy VolunteersUnited States
-
Newcastle UniversityCompletedGI Glycaemic Index Healthy Volunteers | GL Glycaemic Load Healthy VolunteersUnited Kingdom
-
Galera Therapeutics, Inc.Syneos HealthCompleted
-
Galera Therapeutics, Inc.Syneos HealthCompletedHealthy | Healthy VolunteersAustralia
-
Maastricht University Medical CenterCompletedHealthy Volunteers | Healthy Subjects | Healthy AdultsNetherlands
-
PMV Pharmaceuticals, IncRecruitingHealthy VolunteersUnited States
Clinical Trials on No intervention
-
Wave NeuroscienceCompletedAutistic DisorderUnited States
-
University of Alabama at BirminghamCompletedInflammatory Bowel Diseases | Colorectal Cancer | Diverticular Diseases | Social BehaviorUnited States
-
Janssen Research & Development, LLCCompletedLupus Erythematosus, Systemic | Lupus Erythematosus, Cutaneous | Lupus Erythematosus, DiscoidUnited States, Poland
-
Hospital Universitario La Paz3MVX CCB and Agaplesion Markus Krankenhaus, Frankfurt a.M., Germany.; Department...RecruitingEmbolism | Atrial Fibrillation | Arrhythmia | Stroke, Acute | Stroke Sequelae | AblationSpain
-
Southern California College of Optometry at Marshall...Ohio State University; University of Houston; Alcon Research; University of Waterloo and other collaboratorsCompletedContact Lens Complication | Contact Lens Acute Red Eye | Contact Lens Related Corneal Infiltrate (Disorder) | Contact Lens-Induced Corneal Fluorescein StainingUnited States, Canada
-
University of Dublin, Trinity CollegeCompleted
-
Hôpital Necker-Enfants MaladesUnknown
-
China Medical University HospitalUnknownIntention to Stay, Turnover Behavior
-
University of PittsburghCompletedChronic Low Back PainUnited States