Status: Finalised
First registered on:
21/11/2014
Last updated on:
23/11/2018
1. Study identification
EU PAS Register NumberEUPAS8001
Official titleHow to classify women exposed to drug prescriptions during pregnancy in pharmaco-epidemiology studies? Method using treatment intensity and individual trajectories of exposure over time
Study title acronym
Study typeOther: Development of new methods in Pharmacoepidemiology
Brief description of the studyPregnancy represents a situation in which the dose, the duration and the period of exposure play an essential role in the occurrence of adverse effects on the newborn. However, these parameters are often insufficiently and inconsistently addressed. Therefore, it is necessary to develop new methods in order to take into account more precisely exposure profiles to drugs during pregnancy in pharmaco-epidemiology studies.
The objective of the present study is to propose a new method to classify women according to drug exposure during pregnancy taking into account treatment intensity, duration and evolution.
We will apply this method to psychotropic drugs during pregnancy in EFEMERIS.
Was this study requested by a regulator?No
Is the study required by a Risk Management Plan (RMP)?
Not applicable
Regulatory procedure number (RMP Category 1 and 2 studies only)
Other study registration identification numbers and URLs as applicable
2. Research centres and Investigator details
Coordinating study entity
Department/Research groupPharmacoepidemiology research team
Organisation/affiliationUniversity of Toulouse 3 and INSERM 1027
Details of (Primary) lead investigator
Title Dr
Last name Damase-Michel
First name Christine
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
France
3. Study timelines: initial administrative steps, progress reports and final report
PlannedActual
Date when funding contract was signed14/09/2012
Start date of data collection15/11/2012
Start date of data analysis15/01/2013
Date of interim report, if expected
Date of final study report02/11/201503/12/2015
4. Sources of funding
Please provide estimates of the percentage of funding by source for this study
Names(s)Approximate % funding
Pharmaceutical companies
Charities
Government bodyANSM - PHRC100
Research councils
EU funding scheme
5. Contact details for enquiries
Scientific Enquiries
Title Dr
Last name Damase-Michel
First name Christine
Address line 137 Allees Jules
Address line 2Faculté de Médecine
Address line 3
CityToulouse
Postcode31000
CountryFrance
Phone number (incl. country code)33-561145904
Alternative phone number
Fax number (incl. country code)
Public Enquiries
Title Dr
Last name Damase-Michel
First name Christine
Address line 137 Allees Jules
Address line 2Faculté de Médecine
Address line 3
CityToulouse
Postcode31000
CountryFrance
Phone number (incl. country code)33-561145904
Alternative phone number
Fax number (incl. country code)
6. Study drug(s) information
Substance class (ATC Code)N05 (PSYCHOLEPTICS)
Substance class (ATC Code)N06 (PSYCHOANALEPTICS)
7. Medical conditions to be studied
Medical condition(s)No
8. Population under study
Age
Adults (18 - 44 years)
Sex
Female
Other population
Pregnant women
9. Number of subjects
Estimated total number of subjects3700
Additional information
Around 3,700 women were exposed to psychotropic drugs during pregnancy in EFEMERIS database at the beginning of the study.
10. Source of data
Is this study being carried out with an established data source?Yes
Data sources registered with ENCePP
Sources of data
Administrative database, e.g. claims database
11. Scope of the study
What is the scope of the study?
Development of new methods in Pharmacoepidemiology
Primary scope : Development of new methods in Pharmacoepidemiology
12. Main objective(s)
What is the main objective of the study?
The objective of the present study is to propose a new method to classify women according to drug exposure during pregnancy taking into account treatment intensity, duration and evolution.
We will apply this method to psychotropic drugs during pregnancy in EFEMERIS.
Are there primary outcomes?No
Are there secondary outcomes?No
13. Study design
What is the design of the study?
Drug utilisation study
Drug utilization study
14. Follow-up of patients
Will patients be followed up?Not applicable/no follow-up
15. Data analysis plan
Please provide a brief summary of the analysis method
With the proposed method, pregnant women are classified according to drug exposure taking into account treatment intensity and prescription evolution during pregnancy.
Three steps are required to set up the new method :
1.Convertion of filled prescriptions into exposure variables (using ATC-DDD)
2.Construction of individual trajectories of exposure
3.Classification of individual trajectories of exposure in homogeneous groups.
16. ENCePP seal
Are you requesting the ENCePP seal for this study?
No
17. Full protocol
Not submitted
18. Study Results
Not submitted
Please list the 5 most relevant publications using data from your study
ReferenceLink to web-publication
How to take into account exposure to drugs over time in pharmacoepidemiology studies of pregnant women? Hurault-Delarue C, Chouquet C, Savy N, Lacroix I, Beau AB, Montastruc JL, Damase-Michel C. Pharmacoepidemiol Drug Saf. 2016 Jul;25(7):770-7.https://www.ncbi.nlm.nih.gov/pubmed/27018245
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
