Dianette and all cyproterone acetate 2mg/ethinylestradiol 35 mcg products: Strengthening of warnings, new contraindications, and updated indication
Dear Healthcare Professional,
In agreement with the European Medicines Agency (EMA) and MHRA, the MAHs detailed below would like to inform you of the outcome of a review of the known risk of thromboembolic events and benefits of medicines containing cyproterone acetate 2 mg and ethinylestradiol 35 micrograms . The evaluation has been performed by EMA’s Pharmacovigilance Risk Assessment Committee (PRAC) following concerns about the risk of venous and arterial thromboembolism (VTE and ATE) associated with those products.
The PRAC recommendations include: o Dianette and other medicines containing cyproterone acetate 2mg/ethinylestradiol
35 mcg are indicated for the treatment of moderate to severe acne related to androgen-sensitivity (with or without seborrhea) and/or hirsutism, in women of reproductive age.
o For the treatment of acne, Dianette and other cyproterone acetate
2mg/ethinylestradiol 35 mcg products should only be used after topical therapy or systemic antibiotic treatment have failed.
o Since Dianette and all other cyproterone acetate 2mg/ethinylestradiol 35 mcg
products are also a hormonal contraceptive, they should not be used in combination with other hormonal contraceptives.
o To increase awareness of the risk and risk factors of thromboembolism in relation
to the use of Dianette and other cyproterone acetate 2mg/ethinylestradiol 35 mcg products (e.g. increasing age, smoking, immobility), the warnings and precautions regarding this risk have been strengthened.
Further information on the safety concern and the recommendations
The PRAC assessed all available data on the risk of thromboembolism as well as the benefits of Dianette and other medicines containing cyproterone acetate 2 mg and ethinylestradiol 35 mcg including the published literature.
The PRAC concludes that the risk of VTE and ATE is increased in users of Dianette and other medicines containing cyproterone acetate 2 mg and ethinylestradiol 35 micrograms. The excess risk of VTE is highest during the first year a woman starts any cyproterone acetate 2mg/ethinylestradiol 35 mcg product or when restarting or switching after a pill-free interval of at least a month.
There is evidence from epidemiological studies that the incidence of VTE is 1.5 to 2 times higher in users of Dianette and other medicines containing cyproterone acetate 2 mg and ethinylestradiol 35 micrograms than in users of levonorgestrel-containing combined oral contraceptives (COC) and may be similar to the risk for desogestrel / gestodene / drosperinone containing COCs.
It is important that healthcare professionals and women using Dianette and other medicines containing cyproterone acetate 2 mg and ethinylestradiol 35 micrograms are aware of the risk of VTE in order to prevent complications and fatal outcomes and to facilitate a timely and correct diagnosis of VTE. Therefore educational material for prescribers and patients will be distributed.
For more details see relevant attached sections of SmPC (Annex 1).
Call for reporting
Please remember that any suspected adverse reaction following the use of Dianette or other medicines containing cyproterone acetate 2mg/ethinylestradiol 35 mcg should be reported to the Medicines and Healthcare products Regulatory Agency (MHRA) using a Yellow Card available from the MHRA, CHM Freepost, London SW8 5BR, or electronically via the website at www.mhra.gov.uk/yellowcard.
In addition, this information may be reported to the relevant Marketing Authorisation Holder. The contact details are given below.
Marketing Authorisation Holders Contact Details Dianette Tablets Camilette Co-Cyprindiol Co-Cyprindiol 2000/35 2000/35 Tablets Fannin UK Co-Cyprindiol Dialider Tablets Clairette Tablets 2000/35 2000/35 Tablets
Tel: 0870 351 8744 Fax: 0870 351 8745 Mobile: 07976 331021 www.stragenuk.com
Strandhaven Co-Cyprindiol Co-Cyprindiol Tablets 200/35 Tablets
600 High Road, Seven Kings Ilford Essex IG3 8BS Tel : 020 8590 9399 Email: regulatory@somexpharma.com
PRAC Recommendation for Summary of the Product Characteristics (SmPC) Section 4.1 Therapeutic indications [The currently approved indications should be deleted and replaced by the following:]
Treatment of moderate to severe acne related to androgen-sensitivity (with or without seborrhoea)
and/or hirsutism, in women of reproductive age.
For the treatment of acne, <invented name> should only be used after topical therapy or systemic
Since <invented name> is also a hormonal contraceptive, it should not be used in combination
with other hormonal contraceptives (see section 4.3).
Section 4.2 Posology and method of administration [The wording below should be inserted in this section] Duration of Use
Time to relieve of symptoms is at least three months. The need to continue treatment should be
evaluated periodically by the treating physician.
Section 4.3 Contraindications [The following contraindications related to thromboembolism should be included in this section]
• Concomitant use with another hormonal contraceptive (see section 4.1)
• Venous thrombosis present or in history (deep venous thrombosis, pulmonary embolism)
• Arterial thrombosis present or in history (e.g. myocardial infarction) or prodromal conditions (e.g.
angina pectoris and transient ischaemic attack).
• Presence or history of cerebrovascular accident
• The presence of a severe or multiple risk factor(s) for venous or arterial thrombosis (see section
O diabetes mellitus with vascular symptoms
• Hereditary or acquired predisposition for venous or arterial thrombosis, such as activated protein
C (APC) resistance, antithrombin-III-deficiency, protein C deficiency, protein S deficiency,
hyperhomocysteinaemia and antiphospholipid-antibodies (anticardiolipin-antibodies, lupus
Section 4.4 Special warnings and precautions for use [The wording below should be inserted in this section]
<invented name> is composed of the progestogen cyproterone acetate and the oestrogen
ethinylestradiol and is administered for 21 days of a monthly cycle. It has a similar composition to that of a combined oral contraceptive (COC).
Duration of Use
Time to relief of symptoms is at least three months. The need to continue treatment should be
evaluated periodically by the treating physician (see section 4.2).
If any of the conditions/risk factors mentioned below is present, the benefits of the use of
<invented name> should be weighed against the possible risks for each individual woman and discussed with the woman before she decides to start using <invented name>. In the event of
aggravation, exacerbation or first appearance of any of these conditions or risk factors, the woman
should contact her physician. The physician should then decide on whether the use of <invented
Circulatory disorders
• The use of <invented name> carries an increased risk of venous thromboembolism (VTE)
compared with no use. The excess risk of VTE is highest during the first year a woman starts <invented name> or when restarting or switching after a pill-free interval of at least a month.
Venous thromboembolism can be fatal in 1-2% of cases.
• Epidemiological studies have shown that the incidence of VTE is 1.5 to 2 times higher in users of
<invented name> than in users of levonorgestrel-containing combined oral contraceptives (COCs)
and may be similar to the risk for desogestrel / gestodene / drospirenone-containing COCs.
• The user group of <invented name> is likely to include patients that may have an inherently
increased cardiovascular risk such as that associated with polycystic ovarian syndrome.
• Epidemiological studies have also associated the use of hormonal contraceptive with an increased
risk for arterial (myocardial infarction, transient ischaemic attack) thromboembolism.
• Extremely rarely, thrombosis has been reported to occur in other blood vessels, e.g. hepatic,
mesenteric, renal, cerebral or retinal veins and arteries, in hormonal contraceptive users.
• Symptoms of venous or arterial thrombosis or of a cerebrovascular accident can include: unusual
unilateral leg pain and / or swelling; sudden severe pain in the chest, whether or not it radiates to the left arm; sudden breathlessness; sudden onset of coughing; any unusual, severe, prolonged
headache; sudden partial or complete loss of vision; diplopia; slurred speech or aphasia; vertigo;
collapse with or without focal seizure; weakness or very marked numbness suddenly affecting one
side or one part of the body; motor disturbances; ‘acute’ abdomen
• The risk of venous thromboembolic events increases with:
- smoking (with heavier smoking and increasing age the risk further increases, especially in
women over 35 years of age. Women over 35 years of age should be strongly advised not
to smoke if they wish to use <invented name>);
- a positive family history (i.e. venous thromboembolism ever in a sibling or parent at a
relatively early age). If a hereditary predisposition is suspected, the woman should be
referred to a specialist for advice before deciding about any hormonal contraceptive use;
- prolonged immobilisation, major surgery, any surgery to the legs, or major trauma. In
these situations it is advisable to discontinue use (in the case of elective surgery at least
four weeks in advance) and not to resume until two weeks after complete remobilisation. Antithrombotic treatment should be considered if the use of <invented name> has not
- obesity (body mass index over 30 kg/m2).
• The risk of arterial thromboembolic complications or of a cerebrovascular accident increases
- smoking (with heavier smoking and increasing age the risk further increases,
especially in women over 35 years of age. Women over 35 years of age should be
strongly advised not to smoke if they wish to use <invented name>);
- dyslipoproteinemia; - obesity (body mass index over 30 kg/m2);
- atrial fibrillation; - a positive family history (arterial thrombosis ever in a sibling or parent at a
relatively early age). If a hereditary predisposition is suspected, the woman should be
referred to a specialist for advice before deciding about any hormonal contraceptive use.
• Other medical conditions, which have been associated with adverse circulatory events, include
diabetes mellitus, systemic lupus erythematosus, hemolytic uraemic syndrome, chronic
inflammatory bowel disease (e.g. Crohn's disease or ulcerative colitis) and sickle cell disease.
• The increased risk of thromboembolism in the puerperium must be considered (for information
on ‘Pregnancy and lactation’ see section 4.6).
• An increase in frequency or severity of migraine during use of <invented name > (which may
be prodromal of a cerebrovascular event) may be a reason for immediate discontinuation of
Women using <invented name> should be specifically pointed out to contact their physician in case of possible symptoms of thrombosis. In case of suspected or confirmed thrombosis, <invented
name> use should be discontinued. Adequate contraception should be initiated because of the
teratogenicity of anti-coagulant therapy (coumarins).
Section 4.8 - Undesirable effects [The wording below should be inserted in this section]
• There is an increased risk of thromboembolism for all women who use <invented name> (see
[The following to be included in the table of adverse reactions]
• Vascular Disorders Rare (≥ 1/10,000 to < 1/1000): Thromboembolism
[The following to be included below the table of adverse reactions]
The following serious adverse events have been reported in women using <invented name>, which
are discussed in section 4.4 Special warning and precautions for use:
• Venous thromboembolic disorders • Arterial thromboembolic disorders
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