Status: Planned First registered on: 25/04/2017
Last updated on: 28/04/2017
1. Study identification
EU PAS Register NumberEUPAS18732
Official titleThe relationship between the month of birth and ADHD treatment
Study title acronym
Study typeObservational study
Brief description of the studyThere seems to be a relationship between a child’s month of birth and the diagnosis and treatment of attention deficit hyperactivity disorder (ADHD). Both underdiagnosis as well as overdiagnosis of ADHD can have consequences for the future of a child. The objective of this study is to determine if there is a relationship between the month of birth and the pharmacological treatment of ADHD in children in the Netherlands. The study cohort includes children and adolescents ≤ 24 years old who use ADHD medication, dispensed for the first time between 2006-2016.
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
Centre to which the investigator belongsUtrecht University Pharmacoepidemiology Center
Department/Research groupDivision of Pharmacoepidemiology & Clinical Pharmacology
Organisation/affiliationUtrecht Institute for Pharmaceutical Sciences
Website/Homepagewww.uu.nl/pecp
Details of (Primary) lead investigator
Title Dr
Last name Heerdink
First name Rob
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

Netherlands
3. Study timelines: initial administrative steps, progress reports and final report
PlannedActual
Date when funding contract was signed01/02/2017
Start date of data collection01/06/2017
Start date of data analysis
Date of interim report, if expected
Date of final study report01/01/2018
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 body
Research councils
EU funding scheme
OtherDivision of Pharmacoepidemiology & Clinical Pharmacology100
5. Contact details for enquiries
Scientific Enquiries
Title Dr
Last name Heerdink
First name Rob
Address line 1Universiteitsweg 99
Address line 2PO Box 80082 
Address line 3 
CityUtrecht 
Postcode3508 TB 
CountryNetherlands
Phone number (incl. country code)31-6-20283616 
Alternative phone number 
Fax number (incl. country code) 
Email address E.R.Heerdink@uu.nl
Public Enquiries
Title Dr 
Last name Heerdink 
First name Rob 
Address line 1Universiteitsweg 99 
Address line 2PO Box 80082 
Address line 3 
CityUtrecht 
Postcode3508 TB 
CountryNetherlands 
Phone number (incl. country code)31-6-20283616 
Alternative phone number 
Fax number (incl. country code) 
Email address E.R.Heerdink@uu.nl 
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