Checklist for prescribers to guide them on discussion with patients on risk factors associated with Combined hormonal contracpetives and thromboembolism
- 1. Name of the medicinal product
- 2. Qualitative and quantitative composition
- 3. Pharmaceutical form
- 4. Clinical particulars
- 4.1 Therapeutic indications
- 4.2 Posology and method of administration
- 4.3 Contraindications
- 4.4 Special warnings and precautions for use
- 4.5 Interaction with other medicinal products and other forms of interaction
- 4.6 Fertility, pregnancy and lactation
- 4.7 Effects on ability to drive and use machines
- 4.8 Undesirable effects
- 4.9 Overdose
- 5. Pharmacological properties
- 5.1 Pharmacodynamic properties
- 5.2 Pharmacokinetic properties
- 5.3 Preclinical safety data
- 6. Pharmaceutical particulars
- 6.1 List of excipients
- 6.2 Incompatibilities
- 6.3 Shelf life
- 6.4 Special precautions for storage
- 6.5 Nature and contents of container
- 6.6 Special precautions for disposal and other handling
- 7. Marketing authorisation holder
- 8. Marketing authorisation number(s)
- 9. Date of first authorisation/renewal of the authorisation
- 10. Date of revision of the text
PosologyTo achieve maximum contraceptive effectiveness, patients must be advised to use EVRA exactly as directed. For initiation instructions see 'How to start EVRA' below.Only one transdermal patch is to be worn at a time.Each used transdermal patch is removed and immediately replaced with a new one on the same day of the week (Change Day) on Day 8 and Day 15 of the cycle. Transdermal patch changes may occur at any time on the scheduled Change Day. The fourth week is transdermal patch-free starting on Day 22.A new contraceptive cycle begins on the next day following transdermal patch-free week; the next EVRA transdermal patch should be applied even if there has been no withdrawal bleeding or if withdrawal bleeding has not yet stopped.Under no circumstances should there be more than a 7-day transdermal patch-free interval between dosing cycles. If there are more than 7 transdermal patch-free days, the user may not be protected against pregnancy. A non-hormonal contraceptive must then be used concurrently for 7 days. The risk of ovulation increases with each day beyond the recommended contraceptive-free period. If intercourse has occurred during such an extended transdermal patch-free interval, the possibility of pregnancy should be considered.
Body weight equal or greater than 90 kgContraceptive efficacy may be decreased in women weighing equal or greater than 90 kg.
Renal impairmentEVRA has not been studied in women with renal impairment. No dose adjustment is necessary but as there is a suggestion in the literature that the unbound fraction of ethinyl estradiol is higher, EVRA should be used with supervision in this population.
Hepatic impairmentEVRA has not been studied in women with hepatic impairment. EVRA is contraindicated in women with hepatic impairment (see section 4.3).
Post-menopausal womenEVRA is not indicated for post-menopausal women and is not intended for use as hormonal replacement therapy.
Paediatric populationSafety and efficacy have not been established in adolescents under 18 years of age. There is no relevant use of EVRA in children and pre-menarchal adolescents.
Method of administrationEVRA should be applied to clean, dry, hairless, intact healthy skin on the buttock, abdomen, upper outer arm or upper torso, in a place where it will not be rubbed by tight clothing. EVRA should not be placed on the breasts or on skin that is red, irritated or cut. Each consecutive transdermal patch should be applied to a different place on the skin to help avoid potential irritation, although they may be kept within the same anatomic site.The transdermal patch should be pressed down firmly until the edges stick well.To prevent interference with the adhesive properties of the transdermal patch, no make-up, creams, lotions, powders or other topical products should be applied to the skin area where the transdermal patch is placed or where it will be applied shortly.It is recommended that users visually check their transdermal patch daily to ensure continued proper adhesion.The EVRA transdermal patch should not be cut, damaged or altered in any way as this may compromise contraceptive effectiveness.Used transdermal patches should be discarded carefully in accordance with the instructions given in section 6.6.
How to start EVRA
When there has been no hormonal contraceptive use in the preceding cycleContraception with EVRA begins on the first day of menses. A single transdermal patch is applied and worn for one full week (7 days). The day the first transdermal patch is applied (Day 1/Start Day) determines the subsequent Change Days. The transdermal patch Change Day will be on this day every week (cycle Days 8, 15, 22 and Day 1 of the next cycle). The fourth week is transdermal patch-free starting on Day 22.If Cycle 1 therapy starts after first day of the menstrual cycle, a non-hormonal contraceptive should be used concurrently for the first 7 consecutive days of the first treatment cycle only.
When switching from an oral combined contraceptiveTreatment with EVRA should begin on the first day of withdrawal bleeding. If there is no withdrawal bleeding within 5 days of the last active (hormone containing) tablet, pregnancy must be ruled out prior to the start of treatment with EVRA. If therapy starts after the first day of withdrawal bleeding, a non-hormonal contraceptive must be used concurrently for 7 days.If more than 7 days elapse after taking the last active oral contraceptive tablet, the woman may have ovulated and should, therefore, be advised to consult a physician before initiating treatment with EVRA. If intercourse has occurred during such an extended pill-free interval, the possibility of pregnancy should be considered.
When changing from a progestogen-only-methodThe woman may switch any day from the progestogen-only pill (from an implant on the day of its removal, from an injectable when the next injection would be due), but a back-up barrier method of birth control must be used during the first 7 days.
Following abortion or miscarriageAfter an abortion or miscarriage that occurs before 20 weeks gestation, EVRA may be started immediately. An additional method of contraception is not needed if EVRA is started immediately. Be advised that ovulation may occur within 10 days of an abortion or miscarriage.After an abortion or miscarriage that occurs at or after 20 weeks gestation, EVRA may be started either on Day 21 post-abortion or on the first day of the first spontaneous menstruation, whichever comes first. The incidence of ovulation on Day 21 post abortion (at 20 weeks gestation) is not known.
Following deliveryUsers who choose not to breast-feed should start contraceptive therapy with EVRA no sooner than 4 weeks after child-birth. When starting later, the woman should be advised to additionally use a barrier method for the first 7 days. However, if intercourse has already occurred, pregnancy should be excluded before the actual start of EVRA or the woman has to wait for her first menstrual period.For breast-feeding women, see section 4.6.
What to do if the transdermal patch comes off or partly detachesIf the EVRA transdermal patch partly or completely detaches and remains detached, insufficient medicinal product delivery occurs.If EVRA remains even partly detached:- for less than one day (up to 24 hours): it should be re-applied to the same place or replaced with a new EVRA transdermal patch immediately. No additional contraceptive is needed. The next EVRA transdermal patch should be applied on the usual Change Day.- for more than one day (24 hours or more) or if the user is not aware when the transdermal patch has lifted or become detached: the user may not be protected from pregnancy: The user should stop the current contraceptive cycle and start a new cycle immediately by applying a new EVRA transdermal patch. There is now a new Day 1 and a new Change Day. A non-hormonal contraceptive must be used concurrently for the first 7 days of the new cycle only.A transdermal patch should not be re-applied if it is no longer sticky; a new transdermal patch should be applied immediately. Supplemental adhesives or bandages should not be used to hold the EVRA transdermal patch in place.
If subsequent EVRA transdermal patch change days are delayed
At the start of any transdermal patch cycle (Week One/Day 1)The user may not be protected from pregnancy. The user should apply the first transdermal patch of the new cycle as soon as remembered. There is now a new transdermal patch Change Day and a new Day 1. A non-hormonal contraceptive must be used concurrently for the first 7 days of the new cycle. If intercourse has occurred during such an extended transdermal patch-free interval, the possibility of pregnancy should be considered.
In the middle of the cycle (Week Two/Day 8 or Week Three/Day 15)- for one or two days (up to 48 hours): The user should apply a new EVRA transdermal patch immediately. The next EVRA transdermal patch should be applied on the usual Change Day. If during the 7 days preceding the first skipped day of transdermal patch application, the transdermal patch was worn correctly, no additional contraceptive use is required.- for more than two days (48 hours or more): The user may not be protected from pregnancy. The user should stop the current contraceptive cycle and start a new four-week cycle immediately by putting on a new EVRA transdermal patch. There is now a new Day 1 and a new Change Day. A non-hormonal contraceptive must be used concurrently for the first 7 consecutive days of the new cycle.
At the end of the cycle (Week Four/Day 22)- If the EVRA transdermal patch is not removed at the beginning of Week 4 (Day 22), it should be removed as soon as possible. The next cycle should begin on the usual Change Day, which is the day after Day 28. No additional contraceptive use is required.
Change day adjustmentIn order to postpone a menstrual period for one cycle, the woman must apply another transdermal patch at the beginning of Week 4 (Day 22) thus not observing the transdermal patch-free interval. Breakthrough bleeding or spotting may occur. After 6 consecutive weeks of transdermal patch wear, there should be a transdermal patch-free interval of 7 days. Following this, the regular application of EVRA is resumed.If the user wishes to move the Change Day the current cycle should be completed, removing the third EVRA transdermal patch on the correct day. During the transdermal patch-free week a new Change Day may be selected by applying the first EVRA transdermal patch of the next cycle on the first occurrence of the desired day. In no case should there be more than 7 consecutive transdermal patch-free days. The shorter the transdermal patch-free interval, the higher the risk that the user does not have a withdrawal bleed and may experience breakthrough bleeding and spotting during the subsequent treatment cycle.
In case of minor skin irritationIf transdermal patch use results in uncomfortable irritation, a new transdermal patch may be applied to a new location until the next Change Day. Only one transdermal patch should be worn at a time.
|• Presence or risk of venous thromboembolism (VTE)|
|• Venous thromboembolism current VTE (on anticoagulants) or history of (e.g. deep venous thrombosis [DVT] or pulmonary embolism [PE]); • Known hereditary or acquired predisposition for venous thromboembolism, such as APC-resistance, (including Factor V Leiden), antithrombin-III-deficiency, protein C deficiency, protein S deficiency; • Major surgery with prolonged immobilisation (see section 4.4); • A high risk of venous thromboembolism due to the presence of multiple risk factors (see section 4.4);|
|• Presence or risk of arterial thromboembolism (ATE)|
|• Arterial thromboembolism current arterial thromboembolism, history of arterial thromboembolism (e.g. myocardial infarction) or prodromal condition (e.g. angina pectoris);• Cerebrovascular disease current stroke, history of stroke or prodromal condition (e.g. transient ischaemic attack, TIA);• Known hereditary or acquired predisposition for arterial thromboembolism, such as hyperhomocysteinaemia and antiphospholipid-antibodies (anticardiolipin-antibodies, lupus anticoagulant);• History of migraine with focal neurological symptoms;• A high risk of arterial thromboembolism due to multiple risk factors (see section 4.4) or to the presence of one serious risk factor such as:|
|- diabetes mellitus with vascular symptoms - severe hypertension - severe dyslipoproteinaemia|
|• Hypersensitivity to the active substances or to any of the excipients listed in section 6.1• Known or suspected carcinoma of the breast• Carcinoma of the endometrium or other known or suspected oestrogen-dependent neoplasia• Abnormal liver function related to acute or chronic hepatocellular disease• Hepatic adenomas or carcinomas• Undiagnosed abnormal genital bleeding|
WarningsIf any of the conditions/risk factors mentioned below is present, the suitability of EVRA should be discussed with the woman.In the event of aggravation, or first appearance of any of the conditions or risk factors, the woman should be advised to contact her doctor to determine whether the use of EVRA should be discontinued.There is no clinical evidence indicating that a transdermal patch is, in any aspect, safer than combined oral contraceptives.EVRA is not indicated during pregnancy (see section 4.6).Risk of venous thromboembolism (VTE)The use of any combined hormonal contraceptive (CHC) increases the risk of venous thromboembolism (VTE) compared with no use. Products that contain levonorgestrel, norgestimate or norethisterone are associated with the lowest risk of VTE. Other products such as EVRA may have up to twice this level of risk. The decision to use any product other than one with the lowest VTE risk should be taken only after a discussion with the woman to ensure she understands the risk of VTE with EVRA, how her current risk factors influence this risk, and that her VTE risk is highest in the first ever year of use. There is also some evidence that the risk is increased when a CHC is re-started after a break in use of 4 weeks or more.In women who do not use a CHC and are not pregnant about 2 out of 10,000 will develop a VTE over the period of one year. However, in any individual woman the risk may be far higher, depending on her underlying risk factors (see below).It is estimated that out of 10,000 women who use a low dose CHC that contains levonorgestrel, about 61 will develop a VTE in one year. Studies have suggested that the incidence of VTE in women who used EVRA is up to 2-fold higher than in users of CHCs that contain levonorgestrel. This corresponds to between about 6 and 12 VTEs in a year out of 10,000 women who use EVRA.In both cases, the number of VTEs per year is fewer than the number expected in women during pregnancy or in the postpartum period.VTE may be fatal in 1-2% of cases.
Number of VTE events per 10,000 women in one year1 Mid-point of range of 5-7 per 10,000 WY, based on a relative risk for CHCs containing levonorgestrel versus non-use of approximately 2.3 to 3.6 Extremely rarely, thrombosis has been reported to occur in CHC users in other blood vessels, e.g. hepatic, mesenteric, renal or retinal veins and arteries.
Risk factors for VTEThe risk for venous thromboembolic complications in CHC users may increase substantially in a woman with additional risk factors, particularly if there are multiple risk factors (see table).EVRA is contraindicated if a woman has multiple risk factors that put her at high risk of venous thrombosis (see section 4.3). If a woman has more than one risk factor, it is possible that the increase in risk is greater than the sum of the individual factors - in this case her total risk of VTE should be considered. If the balance of benefits and risks is considered to be negative a CHC should not be prescribed (see section 4.3).
|Table: Risk factors for VTE|
|Obesity (body mass index over 30 kg/m2)||Risk increases substantially as BMI rises. Particularly important to consider if other risk factors also present.|
|Prolonged immobilisation, major surgery, any surgery to the legs or pelvis, neurosurgery, or major trauma Note: temporary immobilisation including air travel > 4 hours can also be a risk factor for VTE, particularly in women with other risk factors||In these situations it is advisable to discontinue the use of the patch (in the case of elective surgery at least four weeks in advance) and not resume until two weeks after complete remobilisation. Another method of contraception should be used to avoid unintentional pregnancy. Antithrombotic treatment should be considered if EVRA has not been discontinued in advance.|
|Positive family history (venous thromboembolism ever in a sibling or parent at relatively early age)||If a hereditary predisposition is suspected, the woman should be referred to a specialist for advice before deciding about any CHC use.|
|Other medical conditions associated with VTE||Cancer, systemic lupus erythematosus, haemolytic uraemic syndrome, chronic inflammatory bowel disease (Crohn's disease or ulcerative colitis) and sickle cell disease.|
|Increasing age||Particularly above 35 years.|
Symptoms of VTE (deep vein thrombosis and pulmonary embolism)In the event of symptoms women should be advised to seek urgent medical attention and to inform the healthcare professional that she is taking a CHC.Symptoms of deep vein thrombosis (DVT) can include:- unilateral swelling of the leg and/or foot or along a vein in the leg;- pain or tenderness in the leg which may be felt only when standing or walking;- increased warmth in the affected leg; red or discoloured skin on the leg.Symptoms of pulmonary embolism (PE) can include:- sudden onset of unexplained shortness of breath or rapid breathing;- sudden coughing which may associated with haemoptysis;- sharp chest pain;- severe light headedness or dizziness;- rapid or irregular heartbeat.Some of these symptoms (e.g. shortness of breath, coughing) are non-specific and might be misinterpreted as more common or less severe events (e.g. respiratory tract infections).Other signs of vascular occlusion can include: sudden pain, swelling and slight blue discoloration of an extremity.If the occlusion occurs in the eye symptoms can range from painless blurring of vision which can progress to loss of vision. Sometimes loss of vision can occur almost immediately.
Risk of arterial thromboembolism (ATE)Epidemiological studies have associated the use of CHCs with an increased risk for arterial thromboembolism (myocardial infarction) or for cerebrovascular accident (e.g. transient ischaemic attack, stroke). Arterial thromboembolic events may be fatal.
Risk factors for ATEThe risk of arterial thromboembolic complications or of a cerebrovascular accident in CHC users increases in women with risk factors (see table). EVRA is contraindicated if a woman has one serious or multiple risk factors for ATE that puts her at high risk of arterial thrombosis (see section 4.3). If a woman has more than one risk factor, it is possible that the increase in risk is greater than the sum of the individual factors - in this case her total risk should be considered. If the balance of benefits and risks is considered to be negative a CHC should not be prescribed (see section 4.3).
|Table: Risk factors for ATE|
|Increasing age||Particularly above 35 years|
|Smoking||Women should be advised not to smoke if they wish to use a CHC. Women over 35 who continue to smoke should be strongly advised to use a different method of contraception.|
|Obesity (body mass index over 30 kg/m2)||Risk increases substantially as BMI rises. Particularly important in women with additional risk factors.|
|Positive family history (arterial thromboembolism ever in a sibling or parent at relatively early age e.g. below 50)||If a hereditary predisposition is suspected, the woman should be referred to a specialist for advice before deciding about any CHC use.|
|Migraine||An increase in frequency or severity of migraine during CHC use (which may be prodromal of a cerebrovascular event) may be a reason for immediate discontinuation.|
|Other medical conditions associated with adverse vascular events||Diabetes mellitus, hyperhomocysteinaemia, valvular heart disease and atrial fibrillation, dyslipoproteinaemia, systemic lupus erythematosus.|
Symptoms of ATEIn the event of symptoms women should be advised to seek urgent medical attention and to inform the healthcare professional that she is taking a CHC. Symptoms of a cerebrovascular accident can include:- sudden numbness or weakness of the face, arm or leg, especially on one side of the body;- sudden trouble walking, dizziness, loss of balance or coordination;- sudden confusion, trouble speaking or understanding;- sudden trouble seeing in one or both eyes;- sudden, severe or prolonged headache with no known cause;- loss of consciousness or fainting with or without seizure.Temporary symptoms suggest the event is a transient ischaemic attack (TIA).Symptoms of myocardial infarction (MI) can include:- pain, discomfort, pressure, heaviness, sensation of squeezing or fullness in the chest, arm, or below the breastbone;- discomfort radiating to the back, jaw, throat, arm, stomach;- feeling of being full, having indigestion or choking;- sweating, nausea, vomiting or dizziness;- extreme weakness, anxiety, or shortness of breath;- rapid or irregular heartbeats.Women using combined contraceptives should be emphatically advised to contact their physician in case of possible symptoms of thrombosis. In case of suspected or confirmed thrombosis, hormonal contraceptive use should be discontinued. Adequate contraception should be initiated because of the teratogenicity of anti-coagulant therapy (coumarins).
TumoursAn increased risk of cervical cancer in long-term users of COCs has been reported in some epidemiological studies, but there continues to be controversy about the extent to which this finding is attributable to the confounding effects of sexual behaviour and other factors such as human papilloma virus (HPV).A meta-analysis of 54 epidemiological studies reported that there is a slightly increased risk (RR = 1.24) of having breast cancer diagnosed in women who are currently using COCs. The excess risk gradually disappears during the course of the 10 years after cessation of COC use. Because breast cancer is rare in women under 40 years of age, the excess number of breast cancer diagnoses in current and recent COC users is small in relation to the overall risk of breast cancer. The breast cancers diagnosed in ever-users tend to be less advanced clinically than the cancers diagnosed in never-users. The observed pattern of increased risk may be due to an earlier diagnosis of breast cancer in COC users, the biological effects of COCs or a combination of both.In rare cases, benign liver tumours, and even more rarely, malignant liver tumours have been reported in users of COCs. In isolated cases, these tumours have led to life-threatening intra-abdominal haemorrhages. Therefore a hepatic tumour should be considered in the differential diagnosis when severe upper abdominal pain, liver enlargement or signs of intra-abdominal haemorrhage occur in women using EVRA.
Other conditions- Contraceptive efficacy may be reduced in women weighing equal or greater than 90 kg (see sections 4.2 and 5.1).- Women with hypertriglyceridaemia, or a family history thereof, may be at an increased risk of pancreatitis when using combined hormonal contraceptives.- Although small increases of blood pressure have been reported in many women using hormonal contraceptives, clinically relevant increases are rare. A definitive relationship between hormonal contraceptive use and clinical hypertension has not been established. If, during the use of combined hormonal contraceptives in pre-existing hypertension, constantly elevated blood pressure values or a significant increase in blood pressure do not respond adequately to antihypertensive treatment, the combined hormonal contraceptive must be withdrawn. Combined hormonal contraceptive use may be resumed if normotensive values can be achieved with antihypertensive therapy.- The following conditions have been reported to occur or deteriorate with both pregnancy and COC use, but the evidence of an association with COC use is inconclusive: Jaundice and/or pruritus related to cholestasis; gallbladder disease including cholecystitis and cholelithiasis; porphyria; systemic lupus erythematosus; haemolytic ureamic syndrome; Sydenham's chorea; herpes gestationis; otosclerosis-related hearing loss.- Acute or chronic disturbances of liver function may necessitate the discontinuation of combined hormonal contraceptives until markers of liver function return to normal. Recurrence of cholestatic-related pruritus, which occurred during a previous pregnancy or previous use of sex steroids necessitates the discontinuation of combined hormonal contraceptives.- Although combined hormonal contraceptives may have an effect on peripheral insulin resistance and glucose tolerance, there is no evidence for a need to alter the therapeutic regimen in diabetes during use of combined hormonal contraceptives. However, diabetic women should be carefully observed, particularly in the early stage of EVRA use.- Worsening of endogenous depression, of epilepsy, of Crohn's disease and of ulcerative colitis has been reported during COC use.- Chloasma may occasionally occur with the use of hormonal contraception, especially in users with a history of chloasma gravidarum. Users with a tendency to chloasma should avoid exposure to the sun or ultraviolet radiation while using EVRA. Chloasma is often not fully reversible.
Medical examination/consultationPrior to the initiation or reinstitution of EVRA a complete medical history (including family history) should be taken and pregnancy should be ruled out. Blood pressure should be measured and a physical examination should be performed guided by the contra-indications (see section 4.3) and warnings (see section 4.4). It is important to draw a woman's attention to the information on venous and arterial thrombosis, including the risk of EVRA compared with other CHCs, the symptoms of VTE and ATE, the known risk factors and what to do in the event of a suspected thrombosis.The woman should also be instructed to carefully read the user leaflet and to adhere to the advice given. The frequency and nature of examinations should be based on established practice guidelines and be adapted to the individual woman.Women should be advised that hormonal contraceptives do not protect against HIV infections (AIDS) and other sexually transmissible diseases.
Bleeding irregularitiesWith all combined hormonal contraceptives, irregular blood loss (spotting or breakthrough bleeding) can occur, especially during the initial months of usage. For this reason, a medical opinion on irregular blood loss will only be useful after an adjustment period of approximately three cycles. If breakthrough bleeding persists, or breakthrough bleeding occurs after previously regular cycles, while EVRA has been used according to the recommended regimen, a cause other than EVRA should be considered. Non-hormonal causes should be considered and, if necessary, adequate diagnostic measures taken to rule out organic disease or pregnancy. This may include curettage. In some women withdrawal bleeding may not occur during this transdermal patch free period. If EVRA has been taken according to the directions described in section 4.2, it is unlikely that the woman is pregnant. However, if EVRA has not been taken according to these directions prior to the first missed withdrawal bleed or if two withdrawal bleeds are missed, pregnancy must be ruled out before EVRA use is continued.Some users may experience amenorrhoea or oligomenorrhoea after discontinuing hormonal contraception, especially when such a condition was pre-existent.
Influence Effects of other medicinal products on EVRAInteractions can occur with drugs that induce microsomal enzymes which can result in increased clearance of sex hormones and which may lead to breakthrough bleeding and/or contraceptive failure. The following interactions have been reported in the literature.
Hepatic metabolismSubstances increasing the clearance of CHCs (diminished efficacy of CHCs by enzyme-induction),e.g.:Barbiturates, bosentan, carbamazepine, phenytoin, primidone, rifampicin, modafinil and HIV medication ritonavir, nevirapine and efavirenz and possibly also felbamate, griseofulvin, oxcarbazepine, topiramate and products containing the herbal remedy St. John's Wort (hypericum perforatum).
ManagementEnzyme induction may be observed after a few days of treatment. Maximal enzyme induction is generally seen in about 10 days but may then be sustained for at least 4 weeks after the cessation of medicinal product therapy.Short-termA woman on short-term treatment with medicinal products that induce hepatic drug metabolising enzymes or individual active substances that induce these enzymes should temporarily use a barrier method in addition to EVRA, i.e. during the time of concomitant medicinal product administration and for 28 days after their discontinuation.If concomitant medicinal product administration extends beyond the end of the three-week patch period, the next transdermal patch should be applied without the usual transdermal patch-free interval.Long-termIn women on long-term treatment with enzyme-inducing active substances, another reliable, non-hormonal, method of contraception is recommended.
Substances with variable effects on the clearance of CHCsWhen co-administered with CHCs, many combinations of HIV protease inhibitors and non-nucleoside reverse transcriptase inhibitors, including combinations with HCV inhibitors can increase or decrease plasma concentrations of estrogen or progestins. The net effect of these changes may be clinically relevant in some cases.Therefore, the prescribing information of concomitant HIV medications should be consulted to identify potential interactions and any related recommendations. In case of any doubt, an additional barrier contraceptive method should be used by women on protease inhibitor or non-nucleoside reverse transcriptase inhibitor therapy.
Inhibition of ethinyl estradiol metabolismEtoricoxib has been shown to increase plasma levels of ethinyl estradiol (50 to 60%) when taken concomitantly with an oral triphasic hormonal contraceptive. It is thought that etoricoxib increases ethinyl estradiol levels because it inhibits sulfotransferase activity thereby inhibiting ethinyl estradiol metabolism.
Influence Effect of EVRA on other medicinal productsHormonal contraceptives may affect the metabolism of certain other active substances. Accordingly, plasma and tissue concentrations may increase (e.g. ciclosporin). Dosage adjustment of the concomitant medicinal product may be necessary.Lamotrigine: Combined hormonal contraceptives have been shown to significantly decrease plasma concentrations of lamotrigine when coadministered likely due to induction of lamotrigine glucuronidation. This may reduce seizure control; therefore, dosage adjustments of lamotrigine may be necessary.
Laboratory testsThe use of contraceptive steroids may influence the results of certain laboratory tests, including biochemical parameters of liver, thyroid, adrenal and renal function, plasma levels of (carrier) proteins, e.g. corticosteroid-binding globulin and lipid/lipoprotein fractions, parameters of carbohydrate metabolism and parameters of coagulation and fibrinolysis. Changes generally remain within the normal laboratory range.
PregnancyEVRA is not indicated during pregnancy.Epidemiological studies indicate no increased risk of birth defects in children born to women who used combined oral contraceptives prior to pregnancy. The majority of recent studies also do not indicate a teratogenic effect when combined oral contraceptives are used inadvertently during early pregnancy.Limited data on the outcomes of exposed pregnancies in women using EVRA do not allow for conclusions about its safety during pregnancy.Animal studies have shown undesirable effects during pregnancy and lactation (see section 5.3). Based on these animal data, undesirable effects due to hormonal action of the active compounds cannot be excluded. However, general experience with combined oral contraceptives during pregnancy did not provide evidence for an actual undesirable effect in humans.If pregnancy occurs during use of EVRA, EVRA should be stopped immediately.The increased risk of VTE during the postpartum period should be considered when re-starting EVRA (see sections 4.2 and 4.4).
Breast-feedingBreast-feeding may be influenced by combined hormonal contraceptives as they may reduce the quantity and change the composition of breast milk. Therefore, the use of EVRA is not to be recommended until the breast-feeding mother has completely weaned her child.
FertilityWomen may experience a delay in conception following discontinuation of EVRA.
Summary of the safety profileThe most commonly reported adverse reactions in clinical trials were headache, nausea, and breast tenderness, occurring in approximately 21.0%, 16.6%, and 15.9% of patients, respectively. Adverse reactions that may occur at the beginning of treatment but usually diminish after the first three cycles include spotting, breast tenderness and nausea.
Description of selected adverse reactionsAn increased risk of arterial and venous thrombotic and thrombo-embolic events, including myocardial infarction, stroke, transient ischemic attacks, venous thrombosis and pulmonary embolism has been observed in women using CHCs, which are discussed in more detail in section 4.4.
Tabulated list of adverse reactionsSafety was evaluated in 3,322 sexually active women who participated in three Phase III clinical trials, which were designed to evaluate contraceptive efficacy. These subjects received six or 13 cycles of contraception (EVRA or oral contraceptive comparator), took at least one dose of study medicinal product and provided safety data. Table 1 below reflects the adverse reactions reported in clinical trials and from post-marketing experience. Frequency MedDRA convention: very common (≥ 1/10); common (≥ 1/100 to < 1/10); uncommon (≥ 1/1,000 to < 1/100); rare (≥ 1/10,000 to < 1/1,000); very rare (< 1/10,000); not known (cannot be estimated from the available data).
|Table 1: Frequency of adverse reactions|
|System Organ Class Frequency||Adverse reaction|
|Infections and infestations|
|common||(Vulvo) vaginal fungal infection Vaginal candidiasis|
|rare||Rash pustular* Application site pustules|
|Neoplasms benign, malignant and unspecified (incl cysts and polyps)|
|rare||Hepatic neoplasm* Breast cancer* Cervix carcinoma* Hepatic adenoma* Uterine leiomyoma Fibroadenoma of breast|
|Immune system disorders|
|Metabolism and nutrition disorders|
|uncommon||Hypercholesterolaemia Fluid retention Increased appetite|
|rare||Hyperglycaemia* Insulin resistance*|
|common||Mood, affect and anxiety disorders|
|uncommon||Insomnia Libido decreased|
|rare||Anger* Frustration* Libido increased|
|Nervous system disorders|
|rare||Cerebrovascular accident** Cerebral haemorrhage* Abnormal taste*|
|rare||Contact lens intolerance*|
|rare||Arterial thromboembolism (Acute) myocardial infarction*|
|rare||Hypertensive crisis* Arterial thrombosis** Venous thrombosis** Thrombosis* Venous thromboembolism|
|Respiratory, thoracic and mediastinal disorders|
|rare||Pulmonary (artery) thrombosis* Pulmonary embolism|
|common||Abdominal pain Vomiting Diarrhoea Abdominal distension|
|rare||Cholecystitis Cholelithiasis Hepatic lesion* Jaundice cholestatic* Cholestasis*|
|Skin and subcutaneous tissue disorders|
|common||Acne Rash Pruritus Skin reaction Skin irritation|
|uncommon||Alopecia Dermatitis allergic Eczema Photosensitivity reaction Dermatitis contact Urticaria Erythema|
|rare||Angioedema* Erythema (multiforme, nodosum)* Chloasma Exfoliative rash* Pruritus generalised Rash (erythematous, pruritic) Seborrhoeic dermatitis*|
|Musculoskeletal and connective tissue disorders|
|Reproductive system and breast disorders|
|very common||Breast tenderness|
|common||Dysmenorrhoea Vaginal bleeding and menstrual disorders** Uterine spasm Breast disorders Vaginal discharge|
|uncommon||Galactorrhoea Premenstrual syndrome Vulvovaginal dryness|
|rare||Cervical dysplasia* Suppressed lactation* Genital discharge|
|General disorders and administration site conditions|
|common||Malaise Fatigue Application site reactions (erythema, irritation, pruritus, rash)|
|uncommon||Generalised oedema Oedema peripheral Application site reactions**|
|rare||Face oedema* Pitting oedema* Swelling Application site reactions* (e.g., abscess, erosion) Localised oedema*|
|uncommon||Blood pressure increased Lipid disorders**|
|rare||Blood glucose decreased* Blood glucose abnormal*|
|* Post-marketing reports. ** Includes adverse reactions reported in clinical trials and post-marketing reports. See section 4.4.|
Reporting of suspected adverse reactionsReporting suspected adverse reactions after authorisation of the medicinal product is important. It allows continued monitoring of the benefit/risk balance of the medicinal product. Healthcare professionals are asked to report any suspected adverse reactions via:
United KingdomYellow Card SchemeWebsite: www.mhra.gov.uk/yellowcard.
IrelandHPRA PharmacovigilanceEarlsfort Terrace IRL - Dublin 2Tel: +353 1 6764971Fax: +353 1 6762517Website: www.hpra.ieE-mail: email@example.com
Mechanism of actionEVRA acts through the mechanism of gonadotropin suppression by the estrogenic and progestational actions of ethinyl estradiol and norelgestromin. The primary mechanism of action is inhibition of the ovulation, but the alterations of the cervical mucus, and to the endometrium may also contribute to the efficacy of the product.
Clinical efficacy and safety
Pearl Indices (see table):
|Study Group||CONT-002 EVRA||CONT-003 EVRA||CONT-003 COC*||CONT-004 EVRA||CONT-004 COC**||All EVRA Subjects|
|# of cycles||10,743||5,831||4,592||5,095||4,005||21,669|
|Overall Pearl Index (95% CI)||0.73 (0.15; 1.31)||0.89 (0.02; 1.76)||0.57 (0.0; 1.35)||1.28 (0.16; 2.39)||2.27 (0.59; 3.96)||0.90 (0.44; 1.35)|
|Method Failure Pearl Index (95% CI)||0.61 (0.0; 1.14)||0.67 (0.0; 1.42)||0.28 (0.0; 0.84)||1.02 (0.02; 2.02)||1.30 (0.03; 2.57)||0.72 (0.31; 1.13)|
|* DSG 150 mcg + 20 mcg EE ** 50 mcg LNG + 30 mcg for days 1 6, 75 mcg LNG + 40 mcg EE for days 7 11, 125 mcg LNG + 30 mcg EE for 12 21 days|
AbsorptionFollowing application of EVRA, norelgestromin and ethinyl estradiol levels in serum reach a plateau by approximately 48 hours. Steady state concentrations of norelgestromin and EE during one week of transdermal patch wear are approximately 0.8 ng/ml and 50 pg/ml, respectively. In multiple-dose studies, serum concentrations and AUC for norelgestromin and EE were found to increase only slightly over time when compared to week 1 cycle 1.The absorption of norelgestromin and ethinyl estradiol following application of EVRA was studied under conditions encountered in a health club (sauna, whirlpool, treadmill and other aerobic exercise) and in a cold water bath. The results indicated that for norelgestromin there were no significant treatment effects on Css or AUC when compared to normal wear. For EE, slight increases were observed due to treadmill and other aerobic exercise; however, the Css values following these treatments were within the reference range. There was no significant effect of cool water on these parameters.Results from an EVRA study of extended wear of single contraceptive transdermal patch for 7 days and 10 days indicated that target Css of norelgestromin and ethinyl estradiol were maintained during a 3-day period of extended wear of EVRA (10 days). These findings suggest that clinical efficacy would be maintained even if a scheduled change is missed for as long as 2 full days.
DistributionNorelgestromin and norgestrel (a serum metabolite of norelgestromin) are highly bound (> 97%) to serum proteins. Norelgestromin is bound to albumin and not to SHBG, while norgestrel is bound primarily to SHBG, which limits its biological activity. Ethinyl estradiol is extensively bound to serum albumin.
BiotransformationHepatic metabolism of norelgestromin occurs and metabolites include norgestrel, which is largely bound to SHBG, and various hydroxylated and conjugated metabolites. Ethinyl estradiol is also metabolised to various hydroxylated products and their glucuronide and sulfate conjugates.
EliminationFollowing removal of a transdermal patch, the mean elimination half-lives of norelgestromin and ethinyl estradiol were approximately 28 hours and 17 hours, respectively. The metabolites of norelgestromin and ethinyl estradiol are eliminated by renal and faecal pathways.
Transdermal versus oral contraceptivesThe pharmacokinetic profiles of transdermal and oral combined hormonal contraceptives are different and caution should be exercised when making a direct comparison of these PK parameters.In a study comparing EVRA to an oral contraceptive containing norgestimate (parent drug of norelgestromin) 250 mcg/ethinyl estradiol 35 mcg, Cmax values were 2-fold higher for NGMN and EE in subjects administered the oral contraceptive compared to EVRA, while overall exposure (AUC and Css) was comparable in subjects treated with EVRA. Inter-subject variability (%CV) for the PK parameters following delivery from EVRA was higher relative to the variability determined from the oral contraceptive.
Effects of age, body weight, and body surface areaThe effects of age, body weight, and body surface area on the pharmacokinetics of norelgestromin and ethinyl estradiol were evaluated in 230 healthy women from nine pharmacokinetic studies of single 7-day applications of EVRA. For both norelgestromin and EE, increasing age, body weight and body surface area each were associated with slight decreases in Css and AUC values. However, only a small fraction (1020%) of the overall variability in the pharmacokinetics of the norelgestromin and EE following application of EVRA may be associated with any or all of the above demographic parameters.
Backing layerlow-density pigmented polyethylene outer layerpolyester inner layer.
Middle layerpolyisobutylene/polybutene adhesivecrospovidonenon-woven polyester fabriclauryl lactate.
Third layerpolyethylene terephthalate (PET) filmpolydimethylsiloxane coating.
Primary packaging materialA sachet is composed of four layers: a low-density polyethylene film (innermost layer), an aluminium foil, a low-density polyethylene film, and an outer layer of bleached paper.
Secondary packaging materialSachets are packaged in a cardboard carton.Every carton has 3, 9 or 18 EVRA transdermal patches in individual foil-lined sachets.Sachets are wrapped per three in a transparent perforated plastic film and packed in a cardboard carton.Not all pack sizes may be marketed.
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