Cyproterone-containing medicinal products

  • Procedure started
  • Under evaluation
  • PRAC recommendation
  • CMDh position
  • European Commission final decision
Current status:
Under evaluation


Review of meningioma risk with cyproterone medicines

EMA has started a review of medicines containing cyproterone, which are used for treating a range of conditions, including excessive hair growth, prostate cancer and acne, as well as in hormone replacement therapy.

The review will look into the risk of meningioma, a rare, usually non-malignant tumour of the membranes covering the brain and spinal cord. The risk of meningioma with cyproterone daily doses of  10 mg or more has been known since 2008 and information was included in the prescribing information for these medicines along with a warning that cyproterone should not be used in people who have or have had a meningioma tumour. However, there was no information at the time on the magnitude of the risk and how the risk could change with different doses.

A recent study in France has now suggested that the risk of meningioma, although still very low, may be greater in those taking high doses of cyproterone for a long period. The study also showed that after patients had stopped cyproterone treatment for at least one year, the risk of developing these tumours was much reduced but remained slightly higher than usual.

Due to their location in and around the brain and spinal cord, meningiomas can cause serious problems. The French medicines authority has therefore asked EMA to investigate this risk, taking into account all the latest data.

EMA's safety committee (PRAC) will now examine the available evidence and make recommendations as to whether the marketing authorisations for cyproterone-containing medicines should be amended across the EU.

Key facts

About this medicine
Approved name
Cyproterone-containing medicinal products
International non-proprietary name (INN) or common name


About this procedure
Current status
Under evaluation
Reference number
Article 31 referrals

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.

Decision making model
Authorisation model
Nationally authorised product(s)
Key dates and outcomes
Procedure start date

All documents

Recommendation provided by Pharmacovigilance Risk Assessment Committee

Document description

  • Annex I - List of the medicines affected by the referral
  • Annex II - Scientific conclusions of the CHMP or CMDh
  • Annex III - Changes to the summary of product characteristics, labelling or package leaflet - available when the CHMP or CMDh recommends changes to the product information. Also includes conditions for lifting of suspensions, if applicable
  • Annex IV - Conditions of the marketing authorisation - available when the CHMP or CMDh recommends other measures to be taken for the marketing authorisation such as safety measures or additional studies
  • Notification - A letter from a Member State, the European Commission or a marketing-authorisation holder requesting the initiation of a referral procedure
  • Rationale for triggering - Background provided by the party triggering the referral explaining the issues leading to the initiation of the procedure
  • PRAC list of questions - Questions agreed by the PRAC requesting further information to evaluate the issues identified
  • PRAC timetable - Timeframe agreed by the PRAC to receive information, assess the issues and adopt a recommendation
  • PRAC / CHMP or CMDh assessment report - The assessment and conclusions of the PRAC and CHMP or CMDh on the issues investigated


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