1. Study identification
EU PAS Register NumberEUPAS17960
Official titleA cohort study on the association between acid-suppressing drugs in pregnancy and asthma in the offspring
Study title acronymAcid-suppressing Drugs Pregnancy Asthma Offspring
Study typeObservational study
Brief description of the studyIn this observational cohort study (NCT01787435), women aged 18 to 45 years with completed pregnancies between January 1996 and December 2010 were identified from The Health Improvement Network, and were linked to infants. The relative risk of asthma in children who experienced prenatal exposure to PPIs and/or H2RAs were quantified, adjusting for potential confounders. Hazard ratios (HRs) were estimated using Cox proportional hazard models.
Was this study requested by a regulator?Yes: United Kingdom
Is the study required by a Risk Management Plan (RMP)?
EU RMP category 3 (required)
Regulatory procedure number (RMP Category 1 and 2 studies only)
Other study registration identification numbers and URLs as applicableD9612N00018
2. Research centres and Investigator details
Coordinating study entity
Centre to which the investigator belongsCEIFE
Department/Research groupFundación Centro Español de Investigación Farmacoepidemiológica
Organisation/affiliationFundación CEIFE
Details of (Primary) lead investigator
Title Dr
Last name García Rodríguez
First name Luis Alberto
Is this study being carried out with the collaboration of a research network?
No
Other centres where this study is being conducted
Not applicable (single centre)
Countries in which this study is being conducted
National study
Spain
3. Study timelines: initial administrative steps, progress reports and final report
PlannedActual
Date when funding contract was signed13/12/2011
Start date of data collection15/06/2013
Start date of data analysis15/06/2014
Date of interim report, if expected
Date of final study report15/12/2014
4. Sources of funding
Please provide estimates of the percentage of funding by source for this study
Names(s)Approximate % funding
Pharmaceutical companiesAstraZeneca100
Charities
Government body
Research councils
EU funding scheme
5. Contact details for enquiries
Scientific Enquiries
Title Dr
Last name García Rodríguez
First name Luis Alberto
Address line 11800 Concord Pike
Address line 2PO Box 15437
Address line 3
CityWilmington, De
Postcode19850
CountryUnited States
Phone number (incl. country code)0018772409479
Alternative phone number
Fax number (incl. country code)
Public Enquiries
Title Dr
Last name AstraZeneca
First name Clinical Study Information Center
Address line 11800 Concord Pike
Address line 2PO Box 15437
Address line 3Wilmington, De
CityMadrid
Postcode19850
CountryUnited States
Phone number (incl. country code)0018772409479
Alternative phone number
Fax number (incl. country code)
6. Study drug(s) information
Substance class (ATC Code)A02BC (Proton pump inhibitors)
Substance class (ATC Code)A02BA (H2-receptor antagonists)
7. Medical conditions to be studied
Medical condition(s)No
8. Population under study
Age
Adults (18 - 44 years)
Sex
Female
9. Number of subjects
Estimated total number of subjects10116
10. Source of data
Is this study being carried out with an established data source?Yes
Data sources registered with ENCePP
Sources of data
Routine primary care electronic patient registry
11. Scope of the study
What is the scope of the study?
Risk assessment
Primary scope : Risk assessment
12. Main objective(s)
What is the main objective of the study?
To estimate the association between prenatal exposure of acid suppressing drugs and the risk of asthma during childhood.
Are there primary outcomes?Yes
To estimate the association between prenatal exposure to proton pump inhibitors (PPIs) and the risk of asthma during childhood.
To estimate the association between prenatal exposure to H2-receptor antagonists (H2RAs) and the risk of asthma during childhood.
Are there secondary outcomes?No
13. Study design
What is the design of the study?
Cohort study
14. Follow-up of patients
Will patients be followed up?Yes
Please describe duration of follow up
All infants in the final study cohorts (exposed, unexposed and control) were followed up from 1 year of age until the first recorded entry of one of the following endpoints: asthma diagnosis, their sixth birthday, death or end of the study follow-up period (31 December 2011).
15. Data analysis plan
Please provide a brief summary of the analysis method
Among the matched infant cohorts, Cox proportional hazard models were used to estimate the hazard ratio (HR) and 95% confidence intervals (CIs) of developing asthma associated with maternal prenatal exposure to acid-suppressing drugs. For PPIs and H2RAs, exposure was assessed at any time during pregnancy and in each trimester of pregnancy. Different Cox regression models were used to adjust for various confounding factors.
16. ENCePP seal
Are you requesting the ENCePP seal for this study?
No
17. Full protocol
18. Study Results
Not submitted
Please list the 5 most relevant publications using data from your study
ReferenceLink to web-publication
Cea Soriano L, Hernández-Díaz S, Johansson S, Nagy P, García-Rodríguez LA. Exposure to acid-suppressing drugs during pregnancy and the risk of asthma in childhood: an observational cohort study. Aliment Pharmacol Ther. 2016 Feb; 43(3):427-37.https://doi.org/10.1111/apt.13486
19. Other relevant documents
Conflict(s) of interest of
investigator(s)Not submitted
Composition of Steering Group and
ObserversNot submitted
Other documentsNot
submitted
Signed Code of
Conduct Checklist
Not submitted
Signed Code of Conduct Declaration
Not submitted
Signed Checklist for Study
Protocols
Not submitted