Valproate and related substances - referral
Current status
Referral
Human
On 21 March 2018 the CMDh1 endorsed new measures to avoid exposure of babies to valproate medicines in the womb, because exposed babies are at high risk of malformations and developmental problems.
Valproate-containing medicines have been approved nationally in the EU to treat epilepsy and bipolar disorder and in some countries for prevention of migraine. The new measures include a ban on the use of such medicines for migraine or bipolar disorder during pregnancy, and a ban on treating epilepsy during pregnancy unless there is no other effective treatment available.
Further, the medicines must not be used in any woman or girl able to have children unless the conditions of a new pregnancy prevention programme are met. The programme is designed to ensure that patients are made fully aware of the risks and the need to avoid becoming pregnant.
A visual warning of the pregnancy risks (in the form of boxed text with other possible elements such as a warning symbol) must also be placed on the packaging of the medicines and warnings be included on patient cards attached to the box and supplied with the medicine each time it is dispensed.
The CMDh agreed with EMA's Pharmacovigilance Risk Assessment Committee (PRAC), which carried out a review and recommended the new measures, that despite previous recommendations aimed at better informing patients of the risks with these medicines, women were still not always receiving the right information in a timely manner. The new measures endorsed by CMDh therefore strengthen previous restrictions on valproate use and requirements to inform women of the risk.
Companies marketing these medicines are also required to carry out additional studies on the nature and extent of the risks and to monitor valproate use and the long-term effects from affected pregnancies.
Because the CMDh position was agreed by majority vote it was sent to the European Commission, which issued a final legally binding decision valid across the EU.
1 The CMDh is a medicines regulatory body representing the European Union (EU) Member States, Iceland, Liechtenstein and Norway.
The companies that market valproate must carry out further studies to characterise the nature and extent of the risks posed by valproate and monitor ongoing valproate use and the long-term effects from affected pregnancies. This will include surveys of healthcare professionals and patients to assess the reach and effectiveness of the new measures, and use of data from existing registries to further characterise the malformations known as foetal anticonvulsant syndrome in children whose mothers took valproate in pregnancy and how this compares to other anti-epileptic medicines. It also includes a retrospective observational study to look at any association between exposure to valproate in men and the risk of malformations and developmental disorders including autism in offspring, and an observational study to evaluate and identify the best practice for stopping and switching of valproate treatment.
In addition, all companies marketing such medicines will need to have in place a risk management plan which details the measures taken to ensure that a medicine is used as safely as possible.
Basis for the recommendations
The measures are based on a review of available scientific evidence, including drug utilisation studies and clinical and laboratory evidence of the effects of the medicine. During the review, the PRAC also consulted very widely with healthcare professionals and with patients, including women and their children who have been affected by valproate use during pregnancy, through written submissions, expert meetings, meetings with stakeholders (including healthcare professionals, patients organisations, patients and their families), and via a Summary of the EMA public hearing on valproate in pregnancy.
Valproate medicines are used to treat epilepsy and bipolar disorder. In some EU Member States they are also authorised to prevent migraine headaches.
The active ingredient in these medicines may be valproic acid, magnesium valproate, sodium valproate, valproate semisodium or valpromide.
Valproate medicines have been authorised via national procedures in all EU Member States and in Norway and Iceland. They are marketed under several brand names including: Absenor, Convival Chrono, Convulex, Delepsine, Depakin, Depakine, Depakote, Depamag, Depamide, Deprakine, Diplexil, Dipromal, Epilim, Episenta, Epival, Ergenyl, Espa-Valept, Hexaquin, Kentlim, Leptilan, Micropakine L.P., Orfiril, Petilin, Valepil, Valhel PR, Valpal, Valpro and Valprolek.
The review of valproate medicines was initiated on 9 March 2017 at the request of the French medicines regulator ANSM, under Article 31 of Directive 2001/83/EC.
The review was first carried out by the Pharmacovigilance Risk Assessment Committee (PRAC), the Committee responsible for the evaluation of safety issues for human medicines, which made a set of recommendations. The PRAC recommendations were sent to Co-ordination Group for Mutual Recognition and Decentralised Procedures – Human (CMDh), which adopted a position. The CMDh is a body representing EU Member States as well as Iceland, Liechtenstein and Norway. It is responsible for ensuring harmonised safety standards for medicines authorised via national procedures across the EU.
As the CMDh position was adopted by majority vote, it was sent to the European Commission, which issued an EU-wide legally binding decision on 31/05/2018.
This type of referral is triggered when the interest of the Union is involved, following concerns relating to the quality, safety or efficacy of a medicine or a class of medicines.
EMA's Pharmacovigilance Risk Assessment Committee (PRAC) held a public hearing on this topic on 26 September 2017 at the Agency's premises in London:
The hearing was broadcast live on 26 September from 12:45-18:00 UK time.
A video recording is available below.
At the public hearing, the PRAC sought input on a list of specific questions. These are set out in the document below, together with a summary of the safety concerns with this medicine:
The application deadline to take part in the public hearing was 25 August 2017.
For more information on the PRAC meeting where the public hearing took place, see: PRAC: 25-29 September 2017.
For more information about public hearings at EMA, see Public hearings.
Description of documents published
Please note that some of the listed documents apply only to certain procedures.
Note that older documents may have different titles.