Saturday, 29 September 2012

candesartan


Generic Name: candesartan (kan de SAR tan)

Brand Names: Atacand


What is candesartan?

Candesartan is an angiotensin II receptor antagonist. Candesartan keeps blood vessels from narrowing, which lowers blood pressure and improves blood flow.


Candesartan is used to treat high blood pressure (hypertension). It is sometimes given together with other blood pressure medications.


Candesartan is also used to treat kidney problems caused by type 2 diabetes.


Candesartan may also be used for purposes not listed in this medication guide.


What is the most important information I should know about candesartan?


Do not use candesartan if you are pregnant. Stop using this medication and tell your doctor right away if you become pregnant. Candesartan can cause injury or death to the unborn baby if you take the medicine during your second or third trimester. Use effective birth control while taking candesartan. You should not use this medication if you are allergic to candesartan. Drinking alcohol can further lower your blood pressure and may increase certain side effects of candesartan.

Do not use potassium supplements or salt substitutes while you are taking candesartan, unless your doctor has told you to.


Your blood pressure will need to be checked often. Visit your doctor regularly.


If you are being treated for high blood pressure, keep using this medication even if you feel well. High blood pressure often has no symptoms. You may need to use blood pressure medication for the rest of your life.


In rare cases, candesartan can cause a condition that results in the breakdown of skeletal muscle tissue, leading to kidney failure. Call your doctor right away if you have unexplained muscle pain, tenderness, or weakness especially if you also have fever, unusual tiredness, and dark colored urine.

What should I discuss with my healthcare provider before taking candesartan?


You should not use this medication if you are allergic to candesartan.

To make sure you can safely take candesartan, tell your doctor if you have any of these other conditions:


  • kidney disease;

  • liver disease;


  • congestive heart failure;




  • an electrolyte imbalance; or




  • if you are dehydrated.




FDA pregnancy category D. Do not use candesartan if you are pregnant. Stop using this medication and tell your doctor right away if you become pregnant. Candesartan can cause injury or death to the unborn baby if you take the medicine during your second or third trimester. Use effective birth control while taking candesartan.

If you have any of these conditions, you may need a dose adjustment or special tests to safely take this medication.


It is not known whether candesartan passes into breast milk or if it could harm a nursing baby. Do not use this medication without telling your doctor if you are breast-feeding a baby.

How should I take candesartan?


Take exactly as prescribed by your doctor. Do not take in larger or smaller amounts or for longer than recommended. Follow the directions on your prescription label.


Your doctor may occasionally change your dose to make sure you get the best results.


You may take candesartan with or without food.


Your blood pressure will need to be checked often. Visit your doctor regularly.


It may take 2 to 4 weeks of using this medicine before your blood pressure is under control. For best results, keep using the medication as directed. Talk with your doctor if your symptoms do not improve after 4 weeks of treatment.

If you are being treated for high blood pressure, keep using this medication even if you feel well. High blood pressure often has no symptoms. You may need to use blood pressure medication for the rest of your life.


If you need surgery, tell the surgeon ahead of time that you are using candesartan. You may need to stop using the medicine for a short time. Store at room temperature away from moisture and heat.

See also: Candesartan dosage (in more detail)

What happens if I miss a dose?


Take the missed dose as soon as you remember. Skip the missed dose if it is almost time for your next scheduled dose. Do not take extra medicine to make up the missed dose.


What happens if I overdose?


Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.

Overdose symptoms may include fast or slow heartbeat, dizziness, or feeling like you might pass out.


What should I avoid while taking candesartan?


Drinking alcohol can further lower your blood pressure and may increase certain side effects of candesartan. Do not use potassium supplements or salt substitutes while you are taking candesartan, unless your doctor has told you to. Avoid getting up too fast from a sitting or lying position, or you may feel dizzy. Get up slowly and steady yourself to prevent a fall.

Candesartan side effects


Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat. In rare cases, candesartan can cause a condition that results in the breakdown of skeletal muscle tissue, leading to kidney failure. Call your doctor right away if you have muscle pain, tenderness, or weakness especially if you also have fever, nausea or vomiting, and dark colored urine. Call your doctor at once if you have any other serious side effect, such as:

  • feeling like you might pass out;




  • chest pain;




  • swelling in your hands or feet; or




  • slow heart rate, weak pulse, tingly feeling.



Less serious side effects may include:



  • runny or stuffy nose, sore throat, cough;




  • back pain;




  • joint pain;




  • stomach pain, diarrhea;




  • headache, dizziness; or




  • tired feeling.



This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.


Candesartan Dosing Information


Usual Adult Dose for Hypertension:

Initial dose: 16 mg orally once a day.
Maintenance dose: Daily ranges of 8 to 32 mg administered once or twice daily.

Usual Adult Dose for Congestive Heart Failure:

Initial dose: 4 mg orally once daily. The target dose is 32 mg once daily, achieved by doubling the dose at approximately two-week intervals, as tolerated by the patient.


What other drugs will affect candesartan?


Tell your doctor about all other medicines you use, especially:



  • a diuretic (water pill);




  • lithium (Eskalith, LithoBid, Lithonate); or




  • an NSAID (non-steroidal anti-inflammatory drug) such as aspirin, ibuprofen (Advil, Motrin), naproxen (Aleve, Naprosyn, Naprelan, Treximet), celecoxib (Celebrex), diclofenac (Arthrotec, Cambia, Cataflam, Voltaren, Flector Patch, Pennsaid, Solareze), indomethacin (Indocin), meloxicam (Mobic), and others.



This list is not complete and other drugs may interact with candesartan. Tell your doctor about all medications you use. This includes prescription, over-the-counter, vitamin, and herbal products. Do not start a new medication without telling your doctor.



More candesartan resources


  • Candesartan Side Effects (in more detail)
  • Candesartan Dosage
  • Candesartan Use in Pregnancy & Breastfeeding
  • Candesartan Drug Interactions
  • Candesartan Support Group
  • 6 Reviews for Candesartan - Add your own review/rating


  • candesartan Advanced Consumer (Micromedex) - Includes Dosage Information

  • Candesartan MedFacts Consumer Leaflet (Wolters Kluwer)

  • Atacand Prescribing Information (FDA)

  • Atacand Consumer Overview

  • Atacand Monograph (AHFS DI)



Compare candesartan with other medications


  • Heart Failure
  • High Blood Pressure


Where can I get more information?


  • Your pharmacist can provide more information about candesartan.

See also: candesartan side effects (in more detail)


Friday, 28 September 2012

Enbrel





Dosage Form: subcutaneous injection
FULL PRESCRIBING INFORMATION
WARNINGS:

SERIOUS INFECTIONS AND MALIGNANCIES

SERIOUS INFECTIONS


Patients treated with Enbrel are at increased risk for developing serious infections that may lead to hospitalization or death [see Warnings and Precautions (5.1) and Adverse Reactions (6)]. Most patients who developed these infections were taking concomitant immunosuppressants such as methotrexate or corticosteroids.


Enbrel should be discontinued if a patient develops a serious infection or sepsis.


Reported infections include:


  • Active tuberculosis, including reactivation of latent tuberculosis. Patients with tuberculosis have frequently presented with disseminated or extrapulmonary disease. Patients should be tested for latent tuberculosis before Enbrel use and during therapy. Treatment for latent infection should be initiated prior to Enbrel use.

  • Invasive fungal infections, including histoplasmosis, coccidioidomycosis, candidiasis, aspergillosis, blastomycosis, and pneumocystosis. Patients with histoplasmosis or other invasive fungal infections may present with disseminated, rather than localized, disease. Antigen and antibody testing for histoplasmosis may be negative in some patients with active infection. Empiric anti-fungal therapy should be considered in patients at risk for invasive fungal infections who develop severe systemic illness.

  •  Bacterial, viral, and other infections due to opportunistic pathogens, including Legionella and Listeria.

The risks and benefits of treatment with Enbrel should be carefully considered prior to initiating therapy in patients with chronic or recurrent infection.


Patients should be closely monitored for the development of signs and symptoms of infection during and after treatment with Enbrel, including the possible development of tuberculosis in patients who tested negative for latent tuberculosis infection prior to initiating therapy.


MALIGNANCIES


Lymphoma and other malignancies, some fatal, have been reported in children and adolescent patients treated with TNF blockers, including Enbrel.




Indications and Usage for Enbrel



Rheumatoid Arthritis


Enbrel is indicated for reducing signs and symptoms, inducing major clinical response, inhibiting the progression of structural damage, and improving physical function in patients with moderately to severely active rheumatoid arthritis (RA). Enbrel can be initiated in combination with methotrexate (MTX) or used alone.



Polyarticular Juvenile Idiopathic Arthritis


Enbrel is indicated for reducing signs and symptoms of moderately to severely active polyarticular juvenile idiopathic arthritis (JIA) in patients ages 2 and older.



Psoriatic Arthritis


Enbrel is indicated for reducing signs and symptoms, inhibiting the progression of structural damage of active arthritis, and improving physical function in patients with psoriatic arthritis (PsA). Enbrel can be used in combination with methotrexate (MTX) in patients who do not respond adequately to MTX alone.



Ankylosing Spondylitis


Enbrel is indicated for reducing signs and symptoms in patients with active ankylosing spondylitis (AS).



Plaque Psoriasis


Enbrel is indicated for the treatment of adult patients (18 years or older) with chronic moderate to severe plaque psoriasis (PsO) who are candidates for systemic therapy or phototherapy.



Enbrel Dosage and Administration









Table 1. Dosing and Administration for Adult Patients
 Patient Population Recommended Dosage Strength and Frequency
 Adult RA, AS, and PsA Patients 50 mg weekly
 Adult PsO Patients Starting Dose: 50 mg twice weekly for 3 months

Maintenance Dose: 50 mg once weekly


See the Enbrel (etanercept) “Instructions for Use” insert for detailed information on injection site selection and dose administration.



Adult Rheumatoid Arthritis, Ankylosing Spondylitis, and Psoriatic Arthritis Patients


MTX, glucocorticoids, salicylates, nonsteroidal anti-inflammatory drugs (NSAIDs), or analgesics may be continued during treatment with Enbrel.


Based on a study of 50 mg Enbrel twice weekly in patients with RA that suggested higher incidence of adverse reactions but similar American College of Rheumatology (ACR) response rates, doses higher than 50 mg per week are not recommended.



Adult Plaque Psoriasis Patients


In addition to the 50 mg twice weekly recommended starting dose, starting doses of 25 mg or 50 mg per week were shown to be efficacious. The proportion of responders was related to Enbrel dosage [see Clinical Studies (14.5)].



JIA Patients









Table 2. Dosing and Administration for Juvenile Idiopathic Arthritis
  Pediatric Patients Weight  Recommended Dose
  63 kg (138 pounds) or more   50 mg weekly
   Less than 63 kg (138 pounds)   0.8 mg/kg weekly

In JIA patients, glucocorticoids, NSAIDs, or analgesics may be continued during treatment with Enbrel. Higher doses of Enbrel have not been studied in pediatric patients.



Preparation of Enbrel


Enbrel is intended for use under the guidance and supervision of a physician. Patients may self-inject when deemed appropriate and if they receive medical follow-up, as necessary. Patients should not self-administer until they receive proper training in how to prepare and administer the correct dose.


The Enbrel (etanercept) “Instructions for Use” insert for each presentation contains more detailed instructions on the preparation of Enbrel.


Preparation of Enbrel Using the Single-use Prefilled Syringe or Single-use Prefilled SureClick Autoinjector

Before injection, Enbrel may be allowed to reach room temperature (approximately 15 to 30 minutes). DO NOT remove the needle cover while allowing the prefilled syringe to reach room temperature.


Parenteral drug products should be inspected visually for particulate matter and discoloration prior to administration. There may be small white particles of protein in the solution. This is not unusual for proteinaceous solutions. The solution should not be used if discolored or cloudy, or if foreign particulate matter is present.


When using the Enbrel single-use prefilled syringe, check to see if the amount of liquid in the prefilled syringe falls between the two purple fill level indicator lines on the syringe. If the syringe does not have the right amount of liquid, DO NOT USE THAT SYRINGE.


Preparation of Enbrel Using the Multiple-use Vial

Enbrel should be reconstituted aseptically with 1 mL of the supplied Sterile Bacteriostatic Water for Injection, USP (0.9% benzyl alcohol), giving a solution of 1.0 mL containing 25 mg of Enbrel.


A vial adapter is supplied for use when reconstituting the lyophilized powder.  However, the vial adapter should not be used if multiple doses are going to be withdrawn from the vial.  If the vial will be used for multiple doses, a 25‑gauge needle should be used for reconstituting and withdrawing Enbrel, and the supplied “Mixing Date:” sticker should be attached to the vial and the date of reconstitution entered.  Reconstituted solution must be used within 14 days.  Discard reconstituted solution after 14 days because product stability and sterility cannot be assured after 14 days.


If using the vial adapter, twist the vial adapter onto the diluent syringe.  Then, place the vial adapter over the Enbrel vial and insert the vial adapter into the vial stopper.  Push down on the plunger to inject the diluent into the Enbrel vial.  If using a 25‑gauge needle to reconstitute and withdraw Enbrel, the diluent should be injected very slowly into the Enbrel vial. It is normal for some foaming to occur.  Keeping the diluent syringe in place, gently swirl the contents of the Enbrel vial during dissolution.  To avoid excessive foaming, do not shake or vigorously agitate.


Generally, dissolution of Enbrel takes less than 10 minutes.  Do not use the solution if discolored or cloudy, or if particulate matter remains.


Withdraw the correct dose of reconstituted solution into the syringe.  Some foam or bubbles may remain in the vial.  Remove the syringe from the vial adapter or remove the 25‑gauge needle from the syringe.  Attach a 27‑gauge needle to inject Enbrel.


The contents of one vial of Enbrel solution should not be mixed with, or transferred into, the contents of another vial of Enbrel.  No other medications should be added to solutions containing Enbrel, and do not reconstitute Enbrel with other diluents.  Do not filter reconstituted solution during preparation or administration.



Monitoring to Assess Safety


 Prior to initiating Enbrel and periodically during therapy, patients should be evaluated for active tuberculosis and tested for latent infection [see Warnings and Precautions (5.1)].



Dosage Forms and Strengths


50 mg Single-use Prefilled Syringe 


0.98 mL of a 50 mg/mL solution of etanercept


50 mg Single-use Prefilled SureClick  Autoinjector


0.98 mL of a 50 mg/mL solution of etanercept


25 mg Single-use Prefilled Syringe


0.51 mL of a 50 mg/mL solution of etanercept


25 mg Multiple-use Vial


25 mg of etanercept



Contraindications


Enbrel should not be administered to patients with sepsis.



Warnings and Precautions



Serious Infections


 Patients treated with Enbrel are at increased risk for developing serious infections involving various organ systems and sites that may lead to hospitalization or death.


 Opportunistic infections due to bacterial, mycobacterial, invasive fungal, viral, parasitic, or other opportunistic pathogens including aspergillosis, blastomycosis, candidiasis, coccidioidomycosis, histoplasmosis, legionellosis, listeriosis, pneumocystosis, and tuberculosis have been reported with TNF blockers.  Patients have frequently presented with disseminated rather than localized disease.


 Treatment with Enbrel should not be initiated in patients with an active infection, including clinically important localized infections.  Patients greater than 65 years of age, patients with co-morbid conditions, and/or patients taking concomitant immunosuppressants (such as corticosteroids or methotrexate), may be at greater risk of infection.  The risks and benefits of treatment should be considered prior to initiating therapy in patients:


  • With chronic or recurrent infection;

  • Who have been exposed to tuberculosis;

  •  With a history of an opportunistic infection;

  • Who have resided or traveled in areas of endemic tuberculosis or endemic mycoses, such as histoplasmosis, coccidioidomycosis, or blastomycosis; or

  • With underlying conditions that may predispose them to infection, such as advanced or poorly controlled diabetes [see Adverse Reactions (6.1)].

Patients should be closely monitored for the development of signs and symptoms of infection during and after treatment with Enbrel.


Enbrel should be discontinued if a patient develops a serious infection or sepsis.  A patient who develops a new infection during treatment with Enbrel should be closely monitored, undergo a prompt and complete diagnostic workup appropriate for an immunocompromised patient, and appropriate antimicrobial therapy should be initiated.


Tuberculosis

Cases of reactivation of tuberculosis or new tuberculosis infections have been observed in patients receiving Enbrel, including patients who have previously received treatment for latent or active tuberculosis.  Data from clinical trials and preclinical studies suggest that the risk of reactivation of latent tuberculosis infection is lower with Enbrel than with TNF-blocking monoclonal antibodies.  Nonetheless, postmarketing cases of tuberculosis reactivation have been reported for TNF blockers, including Enbrel.  Tuberculosis has developed in patients who tested negative for latent tuberculosis prior to initiation of therapy.  Patients should be evaluated for tuberculosis risk factors and tested for latent infection prior to initiating Enbrel and periodically during therapy.  Tests for latent tuberculosis infection may be falsely negative while on therapy with Enbrel.


Treatment of latent tuberculosis infection prior to therapy with TNF-blocking agents has been shown to reduce the risk of tuberculosis reactivation during therapy.  Induration of 5 mm or greater with tuberculin skin testing should be considered a positive test result when assessing if treatment for latent tuberculosis is needed prior to initiating Enbrel, even for patients previously vaccinated with Bacille Calmette-Guerin (BCG).


Anti-tuberculosis therapy should also be considered prior to initiation of Enbrel in patients with a past history of latent or active tuberculosis in whom an adequate course of treatment cannot be confirmed, and for patients with a negative test for latent tuberculosis but having risk factors for tuberculosis infection.  Consultation with a physician with expertise in the treatment of tuberculosis is recommended to aid in the decision whether initiating anti-tuberculosis therapy is appropriate for an individual patient.


Tuberculosis should be strongly considered in patients who develop a new infection during Enbrel treatment, especially in patients who have previously or recently traveled to countries with a high prevalence of tuberculosis, or who have had close contact with a person with active tuberculosis.


Invasive Fungal Infections

Cases of serious and sometimes fatal fungal infections, including histoplasmosis, have been reported with TNF blockers, including Enbrel.  For patients who reside or travel in regions where mycoses are endemic, invasive fungal infection should be suspected if they develop a serious systemic illness.  Appropriate empiric anti-fungal therapy should be considered while a diagnostic workup is being performed.  Antigen and antibody testing for histoplasmosis may be negative in some patients with active infection.  When feasible, the decision to administer empiric anti-fungal therapy in these patients should be made in consultation with a physician with expertise in the diagnosis and treatment of invasive fungal infections and should take into account both the risk for severe fungal infection and the risks of anti-fungal therapy.  In 38 Enbrel clinical trials and 4 cohort studies in all approved indications representing 27,169 patient-years of exposure (17,696 patients) from the United States and Canada, no histoplasmosis infections were reported among patients treated with Enbrel.



Neurologic Events


Treatment with TNF-blocking agents, including Enbrel, has been associated with rare (< 0.1%) cases of new onset or exacerbation of central nervous system demyelinating disorders, some presenting with mental status changes and some associated with permanent disability, and with peripheral nervous system demyelinating disorders. Cases of transverse myelitis, optic neuritis, multiple sclerosis, Guillain-Barré syndromes, other peripheral demyelinating neuropathies, and new onset or exacerbation of seizure disorders have been reported in postmarketing experience with Enbrel therapy. Prescribers should exercise caution in considering the use of Enbrel in patients with preexisting or recent-onset central or peripheral nervous system demyelinating disorders [see Adverse Reactions (6.2)].



Malignancies


Lymphomas

In the controlled portions of clinical trials of TNF‑blocking agents, more cases of lymphoma have been observed among patients receiving a TNF blocker compared to control patients.  During the controlled portions of Enbrel trials in adult patients with RA, AS, and PsA, 2 lymphomas were observed among 3306 Enbrel‑treated patients versus 0 among 1521 control patients (duration of controlled treatment ranged from 3 to 36 months).


Among 6543 adult rheumatology (RA, PsA, AS) patients treated with Enbrel in controlled and uncontrolled portions of clinical trials, representing approximately 12,845 patient‑years of therapy, the observed rate of lymphoma was 0.10 cases per 100 patient‑years.  This was 3‑fold higher than the rate of lymphoma expected in the general U.S. population based on the Surveillance, Epidemiology, and End Results (SEER) Database.  An increased rate of lymphoma up to several-fold has been reported in the RA patient population, and may be further increased in patients with more severe disease activity.


Among 4410 adult PsO patients treated with Enbrel in clinical trials up to 36 months, representing approximately 4278 patient‑years of therapy, the observed rate of lymphoma was 0.05 cases per 100 patient‑years, which is comparable to the rate in the general population.  No cases were observed in Enbrel- or placebo-treated patients during the controlled portions of these trials.


Leukemia

Cases of acute and chronic leukemia have been reported in association with postmarketing TNF-blocker use in rheumatoid arthritis and other indications.  Even in the absence of TNF-blocker therapy, patients with rheumatoid arthritis may be at higher risk (approximately 2-fold) than the general population for the development of leukemia.


During the controlled portions of Enbrel trials, 2 cases of leukemia were observed among 5445 (0.06 cases per 100 patient-years) Enbrel-treated patients versus 0 among 2890 (0%) control patients (duration of controlled treatment ranged from 3 to 48 months).


Among 15,401 patients treated with Enbrel in controlled and open portions of clinical trials representing approximately 23,325 patient-years of therapy, the observed rate of leukemia was 0.03 cases per 100 patient-years.


Other Malignancies

Information is available from 10,953 adult patients with 17,123 patient-years and 696 pediatric patients with 1282 patient-years of experience across 45 Enbrel clinical studies.


For malignancies other than lymphoma and non-melanoma skin cancer, there was no difference in exposure-adjusted rates between the Enbrel and control arms in the controlled portions of clinical studies for all indications.  Analysis of the malignancy rate in combined controlled and uncontrolled portions of studies has demonstrated that types and rates are similar to what is expected in the general U.S. population based on the SEER database and suggests no increase in rates over time. Whether treatment with Enbrel might influence the development and course of malignancies in adults is unknown.


 Melanoma and Non-melanoma skin cancer (NMSC)
 Melanoma and non-melanoma skin cancer has been reported in patients treated with TNF antagonists including etanercept. 


 Among 15,401 patients treated with Enbrel in controlled and open portions of clinical trials representing approximately 23,325 patient-years of therapy, the observed rate of melanoma was 0.043 cases per 100 patient-years.


Among 3306 adult rheumatology (RA, PsA, AS) patients treated with Enbrel in controlled clinical trials representing approximately 2669 patient‑years of therapy, the observed rate of NMSC was 0.41 cases per 100 patient‑years vs 0.37 cases per 100 patient-years among 1521 control-treated patients representing 1077 patient-years.  Among 1245 adult psoriasis patients treated with Enbrel in controlled clinical trials, representing approximately 283 patient‑years of therapy, the observed rate of NMSC was 3.54 cases per 100 patient-years vs 1.28 cases per 100 patient-years among 720 control-treated patients representing 156 patient-years. 


 Postmarketing cases of Merkel cell carcinoma have been reported very infrequently in patients treated with Enbrel.


 Periodic skin examinations should be considered for all patients at increased risk for skin cancer.


Pediatric Patients

Malignancies, some fatal, have been reported among children, adolescents, and young adults who received treatment with TNF-blocking agents (initiation of therapy at ≤ 18 years of age), including Enbrel.  Approximately half the cases were lymphomas, including Hodgkin’s and non-Hodgkin’s lymphoma.  The other cases represented a variety of different malignancies and included rare malignancies usually associated with immunosuppression and malignancies that are not usually observed in children and adolescents.  The malignancies occurred after a median of 30 months of therapy (range 1 to 84 months).  Most of the patients were receiving concomitant immunosuppressants.  These cases were reported postmarketing and are derived from a variety of sources, including registries and spontaneous postmarketing reports.


In clinical trials of 696 patients representing 1282 patient-years of therapy, no malignancies, including lymphoma or NMSC, have been reported.


Postmarketing Use

In global postmarketing adult and pediatric use, lymphoma and other malignancies have been reported.



Patients With Heart Failure


Two clinical trials evaluating the use of Enbrel in the treatment of heart failure were terminated early due to lack of efficacy. One of these studies suggested higher mortality in Enbrel-treated patients compared to placebo [see Adverse Reactions (6.2)]. There have been postmarketing reports of worsening of congestive heart failure (CHF), with and without identifiable precipitating factors, in patients taking Enbrel. There have also been rare (< 0.1%) reports of new onset CHF, including CHF in patients without known preexisting cardiovascular disease. Some of these patients have been under 50 years of age. Physicians should exercise caution when using Enbrel in patients who also have heart failure, and monitor patients carefully.



Hematologic Events


Rare (< 0.1%) reports of pancytopenia, including very rare (< 0.01%) reports of aplastic anemia, some with a fatal outcome, have been reported in patients treated with Enbrel. The causal relationship to Enbrel therapy remains unclear. Although no high-risk group has been identified, caution should be exercised in patients being treated with Enbrel who have a previous history of significant hematologic abnormalities. All patients should be advised to seek immediate medical attention if they develop signs and symptoms suggestive of blood dyscrasias or infection (eg, persistent fever, bruising, bleeding, pallor) while on Enbrel. Discontinuation of Enbrel therapy should be considered in patients with confirmed significant hematologic abnormalities.


Two percent of patients treated concurrently with Enbrel and anakinra developed neutropenia (ANC < 1 x 109/L). While neutropenic, one patient developed cellulitis that resolved with antibiotic therapy.



Hepatitis B Virus Reactivation


Use of TNF-blocking agents has been associated with reactivation of hepatitis B virus (HBV), including very rare cases (< 0.01%) with Enbrel, in patients who are chronic carriers of this virus. In some instances, HBV reactivation occurring in conjunction with TNF-blocker therapy has been fatal. The majority of these reports have occurred in patients concomitantly receiving other medications that suppress the immune system, which may also contribute to HBV reactivation. Patients at risk for HBV infection should be evaluated for prior evidence of HBV infection before initiating TNF-blocker therapy. Prescribers should exercise caution in prescribing TNF blockers for patients identified as carriers of HBV. Adequate data are not available on the safety or efficacy of treating patients who are carriers of HBV with anti-viral therapy in conjunction with TNF-blocker therapy to prevent HBV reactivation. Patients who are carriers of HBV and require treatment with Enbrel should be closely monitored for clinical and laboratory signs of active HBV infection throughout therapy and for several months following termination of therapy. In patients who develop HBV reactivation, consideration should be given to stopping Enbrel and initiating anti-viral therapy with appropriate supportive treatment. The safety of resuming Enbrel therapy after HBV reactivation is controlled is not known. Therefore, prescribers should weigh the risks and benefits when considering resumption of therapy in this situation.



Allergic Reactions


Allergic reactions associated with administration of Enbrel during clinical trials have been reported in < 2% of patients. If an anaphylactic reaction or other serious allergic reaction occurs, administration of Enbrel should be discontinued immediately and appropriate therapy initiated.


Caution: The needle cap on the prefilled syringe and on the SureClick autoinjector contains dry natural rubber (a derivative of latex) that may cause allergic reactions in individuals sensitive to latex.



Immunizations


Live vaccines should not be given concurrently with Enbrel. It is recommended that pediatric patients, if possible, be brought up-to-date with all immunizations in agreement with current immunization guidelines prior to initiating Enbrel therapy [see Drug Interactions (7.1)].



Autoimmunity


Treatment with Enbrel may result in the formation of autoantibodies [see Adverse Reactions (6.1)] and, rarely (< 0.1%), in the development of a lupus-like syndrome or autoimmune hepatitis [see Adverse Reactions (6.2)], which may resolve following withdrawal of Enbrel. If a patient develops symptoms and findings suggestive of a lupus-like syndrome or autoimmune hepatitis following treatment with Enbrel, treatment should be discontinued and the patient should be carefully evaluated.



Immunosuppression


TNF mediates inflammation and modulates cellular immune responses.  TNF-blocking agents, including Enbrel, affect host defenses against infections.  The effect of TNF inhibition on the development and course of malignancies is not fully understood.  In a study of 49 patients with RA treated with Enbrel, there was no evidence of depression of delayed‑type hypersensitivity, depression of immunoglobulin levels, or change in enumeration of effector cell populations [see Warnings and Precautions (5.1, 5.3) and Adverse Reactions (6.1)].



Use in Wegener’s Granulomatosis Patients


The use of Enbrel in patients with Wegener’s granulomatosis receiving immunosuppressive agents is not recommended. In a study of patients with Wegener’s granulomatosis, the addition of Enbrel to standard therapy (including cyclophosphamide) was associated with a higher incidence of non-cutaneous solid malignancies and was not associated with improved clinical outcomes when compared with standard therapy alone [see Drug Interactions (7.3)].



Use with Anakinra or Abatacept


Use of Enbrel with anakinra or abatacept is not recommended [see Drug Interactions (7.2)].



Use in Patients with Moderate to Severe Alcoholic Hepatitis


In a study of 48 hospitalized patients treated with Enbrel or placebo for moderate to severe alcoholic hepatitis, the mortality rate in patients treated with Enbrel was similar to patients treated with placebo at 1 month but significantly higher after 6 months. Physicians should use caution when using Enbrel in patients with moderate to severe alcoholic hepatitis.



Adverse Reactions


Across clinical studies and postmarketing experience, the most serious adverse reactions with Enbrel were infections, neurologic events, CHF, and hematologic events [see Warnings and Precautions (5)]. The most common adverse reactions with Enbrel were infections and injection site reactions.



Clinical Studies Experience


Adverse Reactions in Adult Patients with Rheumatoid Arthritis, Psoriatic Arthritis, Ankylosing Spondylitis, or Plaque Psoriasis

The data described below reflect exposure to Enbrel in 2219 adult patients with RA followed for up to 80 months, in 182 patients with PsA for up to 24 months, in 138 patients with AS for up to 6 months, and in 1204 adult patients with PsO for up to 18 months.


In controlled trials, the proportion of Enbrel‑treated patients who discontinued treatment due to adverse events was approximately 4% in the indications studied. 


Because clinical trials are conducted under widely varying conditions, adverse reactions rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not predict the rates observed in clinical practice.


Infections

Infections, including viral, bacterial, and fungal infections, have been observed in adult and pediatric patients.  Infections have been noted in all body systems and have been reported in patients receiving Enbrel alone or in combination with other immunosuppressive agents.


In controlled portions of trials, the types and severity of infection were similar between Enbrel and the respective control group (placebo or MTX for RA and PsA patients) in RA, PsA, AS and PsO patients.  Rates of infections in RA and PsO patients are provided in Table 3 and Table 4, respectively.  Infections consisted primarily of upper respiratory tract infection, sinusitis and influenza.


In controlled portions of trials in RA, PsA, AS and PsO, the rates of serious infection were similar (0.8% in placebo, 3.6% in MTX, and 1.4% in Enbrel/Enbrel + MTX‑treated groups).  In clinical trials in rheumatologic indications, serious infections experienced by patients have included, but are not limited to, pneumonia, cellulitis, septic arthritis, bronchitis, gastroenteritis, pyelonephritis, sepsis, abscess and osteomyelitis.  In clinical trials in PsO, serious infections experienced by patients have included, but are not limited to, pneumonia, cellulitis, gastroenteritis, abscess and osteomyelitis.  The rate of serious infections was not increased in open‑label extension trials and was similar to that observed in Enbrel‑ and placebo‑treated patients from controlled trials.  


In 66 global clinical trials of 17,505 patients (21,015 patient-years of therapy), tuberculosis was observed in approximately 0.02% of patients.  In 17,696 patients (27,169 patient-years of therapy) from 38 clinical trials and 4 cohort studies in the U.S. and Canada, tuberculosis was observed in approximately 0.006% of patients.  These studies include reports of pulmonary and extrapulmonary tuberculosis [see Warnings and Precautions (5.1)].


Injection Site Reactions

In placebo-controlled trials in rheumatologic indications, approximately 37% of patients treated with Enbrel developed injection site reactions.  In controlled trials in patients with PsO, 15% of patients treated with Enbrel developed injection site reactions during the first 3 months of treatment.  All injection site reactions were described as mild to moderate (erythema, itching, pain, swelling, bleeding, bruising) and generally did not necessitate drug discontinuation.  Injection site reactions generally occurred in the first month and subsequently decreased in frequency.  The mean duration of injection site reactions was 3 to 5 days.  Seven percent of patients experienced redness at a previous injection site when subsequent injections were given.  


Immunogenicity

Patients with RA, PsA, AS or PsO were tested at multiple time points for antibodies to etanercept.  Antibodies to the TNF receptor portion or other protein components of the Enbrel drug product were detected at least once in sera of approximately 6% of adult patients with RA, PsA, AS or PsO.  These antibodies were all non-neutralizing. Results from JIA patients were similar to those seen in adult RA patients treated with Enbrel. 


In PsO studies that evaluated the exposure of etanercept for up to 120 weeks, the percentage of patients testing positive at the assessed time points of 24, 48, 72 and 96 weeks ranged from 3.6% - 8.7% and were all non-neutralizing.  The percentage of patients testing positive increased with an increase in the duration of study; however, the clinical significance of this finding is unknown.  No apparent correlation of antibody development to clinical response or adverse events was observed. The immunogenicity data of Enbrel beyond 120 weeks of exposure are unknown.


The data reflect the percentage of patients whose test results were considered positive for antibodies to etanercept in an ELISA assay, and are highly dependent on the sensitivity and specificity of the assay.  Additionally, the observed incidence of any antibody positivity in an assay is highly dependent on several factors, including assay sensitivity and specificity, assay methodology, sample handling, timing of sample collection, concomitant medications and underlying disease.  For these reasons, comparison of the incidence of antibodies to etanercept with the incidence of antibodies to other products may be misleading.


Autoantibodies

Patients with RA had serum samples tested for autoantibodies at multiple time points.  In RA Studies I and II, the percentage of patients evaluated for antinuclear antibodies (ANA) who developed new positive ANA (titer ≥ 1:40) was higher in patients treated with Enbrel (11%) than in placebo‑treated patients (5%).  The percentage of patients who developed new positive anti‑double‑stranded DNA antibodies was also higher by radioimmunoassay (15% of patients treated with Enbrel compared to 4% of placebo‑treated patients) and by Crithidia luciliae assay (3% of patients treated with Enbrel compared to none of placebo‑treated patients).  The proportion of patients treated with Enbrel who developed anticardiolipin antibodies was similarly increased compared to placebo‑treated patients.  In RA Study III, no pattern of increased autoantibody development was seen in Enbrel patients compared to MTX patients [see Warnings and Precautions (5.9)].


Other Adverse Reactions

Table 3 summarizes adverse reactions reported in adult RA patients.  The types of adverse reactions seen in patients with PsA or AS were similar to the types of adverse reactions seen in patients with RA.

































































Table 3. Percent of Adult RA Patients Experiencing Adverse Reactions in Controlled Clinical Trials
    

Placebo Controlled*


(Studies I, II, and a Phase 2 Study)
  

Active Controlled


(Study III)
    

Placebo


(N = 152)
  

Enbrel


(N = 349)
  

MTX


(N = 217)
  

Enbrel


(N = 415)
  Reaction  Percent of Patients  Percent of Patients

*

Includes data from the 6-month study in which patients received concurrent MTX therapy in both arms.


Study duration of 2 years.


Any dose.

§

Includes bacterial, viral and fungal infections.


Most frequent Upper Respiratory Infections were upper respiratory tract infection, sinusitis and influenza.

  Infection§(total)  39  50  86  81
  Upper Respiratory Infections  30  38  70  65
  Non-upper Respiratory Infections  15  21  59  54
  Injection Site Reactions  11  37  18  43
  Diarrhea  9  8  16  16
  Rash  2  3  19  13
  Pruritus  1  2  5  5
  Pyrexia  -  3  4  2
  Urticaria  1  -  4  2
  Hypersensitivity  -  -  1  1

In placebo-controlled PsO trials, the percentages of patients reporting adverse reactions in the 50 mg twice a week dose group were similar to those observed in the 25 mg twice a week dose group or placebo group.


Table 4 summarizes adverse reactions reported in adult PsO patients from Studies I and II.







































Table 4. Percent of Adult PsO Patients Experiencing Adverse Reactions in Placebo-Controlled Portions of Clinical Trials (Studies I & II)
    

Placebo


(N = 359)
  

Enbrel*


(N = 876)
  Reaction  Percent of Patients

*

Includes 25 mg subcutaneous (SC) once weekly (QW), 25 mg SC twice weekly (BIW), 50 mg SC QW, and 50 mg SC BIW doses.


Includes bacterial, viral and fungal infections.


Most frequent Upper Respiratory Infections were upper respiratory tract infection, nasopharyngitis and sinusitis.

  Infection(total)  28  27
  Non-upper Respiratory Infections  14  12
  Upper Respiratory Infections  17  17
  Injection Site Reactions  6  15
  Diarrhea  2  3
  Rash  1  1
  Pruritus  2  1
  Urticaria  -  1
  Hypersensitivity  -  1
  Pyrexia  1  -

Adverse Reactions in Pediatric Patients

In general, the adverse reactions in pediatric patients were similar in frequency and type as those seen in adult patients [see Warnings and Precautions (5), Adverse Reactions (6), and Clinical Studies (14.2)].  The types of infections reported in pediatric patients were generally mild and consistent with those commonly seen in the general pediatric population.  Two JIA patients developed varicella infection and signs and symptoms of aseptic meningitis, which resolved without sequelae.  


In open-label clinical studies of children with JIA, adverse reactions reported in those ages 2 to 4 years were similar to adverse reactions reported in older children.



Postmarketing Experience


Adverse reactions have been reported during post approval use of Enbrel in adults and pediatric patients. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to Enbrel exposure.


Adverse reactions are listed by body system below:



















 

Blood and lymphatic system disorders:


 

pancytopenia, anemia, leukopenia, neutropenia, thrombocytopenia, lymphadenopathy, aplastic anemia [see Warnings and Precautions (5.5)]


 

Cardiac disorders:


 

congestive heart failure [see Warnings and Precautions (5.4)]


 

Gastrointestinal disorders:


 

inflammatory bowel disease (IBD)


 

General disorders:


 

angioedema, chest pain


 

Hepatobiliary disorders:


 

autoimmune hepatitis, elevated transaminases


 

Immune disorders:


 

macrophage activation syndrome, systemic vasculitis


 

Musculoskeletal and connective tissue disorders:


 

lupus‑like syndrome


 

Neoplasms benign, malignant, and unspecified:


 

melanoma and non-melanoma skin cancers, Merkel cell carcinoma [see Warnings and Precautions (5.3)]


 

Nervous system disorders:


 

convulsions, mult

Wednesday, 26 September 2012

Angiotensin II inhibitors


A drug may be classified by the chemical type of the active ingredient or by the way it is used to treat a particular condition. Each drug can be classified into one or more drug classes.

Angiotensin II is an extremely potent vasoconstrictor. It also increases release of noradrenaline, reinforcing vasoconstriction and increases the heart rate and force of contraction.


It increases re-absorption of sodium ions by the kidneys and stimulates
secretion of aldosterone from the adrenal cortex. Aldosterone further increases sodium re-absorption and water retention by the kidneys.


Angiotensin II inhibitors bind to the angiotensin II receptors and decreases the effect of angiotensin II. Therefore vasoconstriction is reduced and blood pressure is reduced.


Angiotensin II inhibitors are used to treat hypertension.

See also

Medical conditions associated with angiotensin II inhibitors:

  • Cardiovascular Risk Reduction
  • Diabetic Kidney Disease
  • Heart Failure
  • High Blood Pressure
  • Left Ventricular Dysfunction
  • Migraine Prevention
  • Prevention of Cardiovascular Disease

Drug List:

Tuesday, 25 September 2012

Qlaira





1. Name Of The Medicinal Product



Qlaira, film-coated tablets


2. Qualitative And Quantitative Composition



Each wallet (28 film-coated tablets) contains in the following order:



2 dark yellow tablets each containing 3 mg estradiol valerate



5 medium red tablets each containing 2 mg estradiol valerate and 2 mg dienogest



17 light yellow tablets each containing 2 mg estradiol valerate and 3 mg dienogest



2 dark red tablets each containing 1 mg estradiol valerate



2 white tablets do not contain active substances



Excipient: lactose (not more than 50 mg per tablet)



For a full list of excipients, see section 6.1. .



3. Pharmaceutical Form



Film-coated tablet (tablet).



Dark yellow film-coated tablet, round with biconvex faces, one side is embossed with the letters “DD” in a regular hexagon



Medium red film-coated tablet, round with biconvex faces, one side is embossed with the letters “DJ” in a regular hexagon



Light yellow film-coated tablet, round with biconvex faces, one side is embossed with the letters “DH” in a regular hexagon



Dark red film-coated tablet, round with biconvex faces, one side is embossed with the letters “DN” in a regular hexagon



White film-coated tablet, round with biconvex faces, one side is embossed with the letters “DT” in a regular hexagon



4. Clinical Particulars



4.1 Therapeutic Indications



Oral contraception.



4.2 Posology And Method Of Administration



How to take Qlaira



Tablets must be taken in the order directed on the package every day at about the same time with some liquid as needed. Tablet taking is continuous. One tablet is to be taken daily for 28 consecutive days. Each subsequent pack is started the day after the last tablet of the previous wallet. Withdrawal bleeding usually starts during the intake of the last tablets of a wallet and may not have finished before the next wallet is started. In some women, the bleeding starts after the first tablets of the new wallet are taken.



How to start Qlaira



• No preceding hormonal contraceptive use (in the past month)



Tablet-taking has to start on day 1 of the woman's natural cycle (i.e. the first day of her menstrual bleeding).



• Changing from a combined hormonal contraceptive (combined oral contraceptive /COC), vaginal ring, or transdermal patch



The woman should start with Qlaira on the day after the last active tablet (the last tablet containing the active substances) of her previous COC. In case a vaginal ring or transdermal patch has been used, the woman should start using Qlaira on the day of removal.



• Changing from a progestogen-only method (progestogen-only pill, injection, implant) or from a progestogen-releasing intrauterine system (IUS)



The woman may switch any day from the progestogen-only pill (from an implant or the IUS on the day of its removal, from an injectable when the next injection would be due), but should in all of these cases be advised to additionally use a barrier method for the first 9 days of tablet-taking.



• Following first-trimester abortion



The woman may start immediately. When doing so, she needs not take additional contraceptive measures.



• Following delivery or second-trimester abortion



For breastfeeding women see section 4.6.



Women should be advised to start at day 21 to 28 after delivery or second-trimester abortion. When starting later, the woman should be advised to additionally use a barrier method for the first 9 days of tablet-taking. However, if intercourse has already occurred, pregnancy should be excluded before the actual start of COC use or the woman has to wait for her first menstrual period.



Management of missed tablets



Missed (white) placebo tablets can be disregarded. However, they should be discarded to avoid unintentionally prolonging the interval between active-tablet taking.



The following advice only refers to missed active tablets:



If the woman is less than 12 hours late in taking any tablet, contraceptive protection is not reduced. The woman should take the tablet as soon as she remembers and should take further tablets at the usual time.



If she is more than 12 hours late in taking any tablet, contraceptive protection may be reduced. The woman should take the last missed tablet as soon as she remembers, even if this means taking two tablets at the same time. She then continues to take tablets at her usual time.



Depending on the day of the cycle on which the tablet has been missed (see chart below for details), back-up contraceptive measures (e.g. a barrier method such as a condom) have to be used according to the following principles:

























DAY




Color



Content of estradiol valerate (EV)/dienogest (DNG)




Principles to follow if missing one tablet for more than 12 hours:




1 – 2




Dark yellow tablets (3.0 mg EV)




 



- Take missed tablet immediately and the following tablet as usual (even if this means taking two tablets on the same day)



- Continue with tablet-taking in the normal way



- Use back-up contraception for the next 9 days




3 - 7




Medium red tablets (2.0 mg EV + 2.0 mg DNG)


 


8 – 17




Light yellow tablets (2.0 mg EV + 3.0 mg DNG)


 


18 – 24




Light yellow tablets



(2.0 mg EV + 3.0 mg DNG)




- Discard current wallet, and start immediately with the first pill of a new wallet



- Continue with tablet-taking in the normal way



- Back-up contraception for the next 9 days




25 – 26




Dark red tablets



(1.0 mg EV)




- Take missed tablet immediately and the following tablet as usual (even if this means taking two tablets on the same day)



- No back-up contraception necessary




27-28




White tablets (Placebos)




- Discard missed tablet and continue tablet-taking in the normal way



- No back-up contraception necessary



Not more than two tablets are to be taken on a given day.



If a woman has forgotten to start a new wallet, or if she has missed one or more tablets during days 3 -9 of the wallet, she may already be pregnant (provided she has had intercourse in the 7 days before the oversight). The more tablets (of those with the two combined active ingredients on days 3 – 24) that are missed and the closer they are to the placebo tablet phase, the higher the risk of a pregnancy.



If the woman missed tablets and subsequently has no withdrawal bleed at the end of the wallet /beginning of new wallet, the possibility of a pregnancy should be considered.



Paediatric population



No data available for use in adolescents below 18 years.



Advice in case of gastro-intestinal disturbances



In case of severe gastro-intestinal disturbances (e.g., vomiting or diarrhoea), absorption may not be complete and additional contraceptive measures should be taken.



If vomiting occurs within 3-4 hours after active tablet-taking, the next tablet should be taken as soon as possible. This tablet should be taken within 12 hours of the usual time of tablet-taking, if possible. If more than 12 hours elapse, the advice concerning missed tablets, as given in section 4.2 “Management of missed tablets”, is applicable. If the woman does not want to change her normal tablet-taking schedule, she has to take the corresponding tablet(s) needed from another pack.



4.3 Contraindications



Combined oral contraceptives (COCs) should not be used in the presence of any of the conditions listed below. Should any of the conditions appear for the first time during COC use, the product should be stopped immediately.



• Venous thrombosis present or history (deep venous thrombosis, pulmonary embolism)



• Arterial thrombosis present or in history (e.g. myocardial infarction) or prodromal conditions (e.g. angina pectoris und transient ischaemic attack)



• Cerebrovascular accident present or in history



• Presence of severe or multiple risk factor(s) for venous (see 4.4) or arterial thrombosis such as:





 


• diabetes mellitus with vascular symptoms



• severe hypertension



• severe dyslipoproteinemia



• Hereditary or acquired predisposition for venous or arterial thrombosis, such as APC-resistance, antithrombin-III-deficiency, protein C deficiency, protein S deficiency, hyperhomocysteinemia and antiphospholipid-antibodies (anticardiolipin-antibodies, lupus anticoagulant).



• Pancreatitis or a history thereof if associated with severe hypertriglyceridemia.



• Presence or history of severe hepatic disease as long as liver function values have not returned to normal.



• Presence or history of liver tumours (benign or malignant).



• Known or suspected sex-steroid influenced malignancies (e.g. of the genital organs or the breasts).



• Undiagnosed vaginal bleeding.



• History of migraine with focal neurological symptoms.



• Hypersensitivity to the active substances or to any of the excipients.



4.4 Special Warnings And Precautions For Use



Warnings



If any of the conditions/risk factors mentioned below are present, the benefits of COC use should be weighed against the possible risks for each individual woman and discussed with the woman before she decides to start taking it. 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 whether COC use should be discontinued.



No epidemiological studies on the effects of estradiol/ estradiol valerate containing COC's exist. All the following warnings and precautions are derived from clinical and epidemiological data of ethinyl estradiol containing COCs. Whether these warning and precautions apply to Qlaira is unknown.



• Circulatory Disorders



Epidemiological studies have shown that the incidence of VTE in users of oral contraceptives with low oestrogen content (<50 µg ethinylestradiol) ranges from about 20 to 40 cases per 100,000 woman-years, but this risk estimate varies according to the progestogen. This compares with 5 to 10 cases per 100,000 woman-years for non-users.



The use of any combined oral contraceptive (including Qlaira) 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 ever uses a combined oral contraceptive. The incidence of VTE associated with pregnancy is estimated as 60 cases per 100,000 pregnancies. VTE is fatal in 1-2% of cases.



The risk of VTE during use of Qlaira is currently unknown.



Epidemiological studies have also associated the use of ethinylestradiol containing COCs 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 COC users. There is no consensus as to whether the occurrence of these events is associated with the use of COCs.



Symptoms of venous or arterial thrombotic/thromboembolic events or of a cerebrovascular accident can include:



• 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 for venous thromboembolic events in COCs users increases with:



• increasing age



• a 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 COC use.



• prolonged immobilisation, major surgery, any surgery to the legs, or major trauma. In these situations it is advisable to discontinue the pill (in the case of elective surgery at least four weeks in advance) and not resume until two weeks after complete remobilisation. Antithrombotic treatment should be considered if the pills have not been discontinued in advance.



• obesity (body mass index over 30 kg/m²).



There is no consensus about the possible role of varicose veins and superficial thrombophlebitis in the onset or progression of venous thrombosis.



The risk of arterial thromboembolic events or of a cerebrovascular accident increases with:



− increasing age;



− smoking (women over 35 years should be strongly advised not to smoke if they wish to use an COC);



− a positive family history (arterial 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 COC use;



− obesity (body mass index over 30 kg/m2);



− dyslipoproteinaemia;



− hypertension;



− migraine;



− valvular heart disease;



− atrial fibrillation;



The presence of one serious risk factor or multiple risk factors for venous or arterial disease, respectively, can also constitute a contra-indication. The possibility of anticoagulant therapy should also be taken into account. COC users should be specifically pointed out to contact their physician in case of possible symptoms of thrombosis. In case of suspected or confirmed thrombosis, COC use should be discontinued. Adequate alternative contraception should be initiated because of the teratogenicity of anticoagulant therapy (coumarins).



The increased risk of venous thromboembolism in the puerperium must be considered (for information on “Pregnancy and Lactation” see section 4.6).



Other medical conditions which have been associated with adverse circulatory events include diabetes mellitus, systemic lupus erythematosus, hemolytic uremic syndrome, chronic inflammatory bowel disease (Crohn's disease or ulcerative colitis) and sickle cell disease.



An increase in frequency or severity of migraine during COC use (which may be prodromal of a cerebrovascular event) may be a reason for immediate discontinuation of the COC.



• Tumours



An increased risk of cervical cancer in long-term users of COCs (> 5 years) 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 from 54 epidemiological studies reported that there is a slightly increased relative 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. These studies do not provide evidence for causation. 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. The breast cancers diagnosed in ever-users tend to be less advanced clinically than the cancers diagnosed in never-users.



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 hemorrhages. A hepatic tumour should be considered in the differential diagnosis when severe upper abdominal pain, liver enlargement or signs of intra-abdominal hemorrhage occur in women taking COCs.



• Other conditions



Women with hypertriglyceridaemia, or a family history thereof, may be at an increased risk of pancreatitis when using COCs.



Although small increase s in blood pressure have been reported in many women taking COCs, clinically relevant increases are rare. However, if a sustained clinically significant hypertension develops during the use of a COC then it is prudent for the physician to withdraw the COC and treat the hypertension. Where considered appropriate, COC 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; gallstone formation; porphyria; systemic lupus erythematosus; hemolytic uremic syndrome; Sydenham's chorea; herpes gestationis; otosclerosis-related hearing loss.



In women with hereditary angioedema exogenous estrogens may induce or exacerbate symptoms of angioedema.



Acute or chronic disturbances of liver function may necessitate the discontinuation of COC use until markers of liver function return to normal. Recurrence of cholestatic jaundice which occurred first during pregnancy or previous use of sex steroids necessitates the discontinuation of COCs.



Although COCs may have an effect on peripheral insulin resistance and glucose tolerance, there is no evidence for a need to alter the therapeutic regimen in diabetics using low-dose COCs (containing <0.05 mg ethinylestradiol). However, diabetic women should be carefully observed while taking COCs, particularly in the early stage of COC 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, especially in women with a history of chloasma gravidarum. Women with a tendency to chloasma should avoid exposure to the sun or ultraviolet radiation whilst taking COCs.



Estrogens may cause fluid retention, and therefore patients with cardiac or renal dysfunction should be carefully observed. Patients with terminal renal insufficiency should be closely observed, since the level of circulating estrogens may be increased after administration of Qlaira.



This medicinal product contains not more than 50 mg lactose per tablet. Patients with rare hereditary problems of galactose intolerance, the Lapp lactase deficiency or glucose-galactose malabsorption who are on a lactose-free diet should take this amount into consideration.



Medical examination/consultation



A complete medical history (including family history) and physical examination should be taken prior to the initiation or reinstitution of COC use and pregnancy must 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). The woman should also be instructed to carefully read the user booklet 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 oral contraceptives do not protect against HIV infections (AIDS) and other sexually transmitted diseases.



Reduced efficacy



The efficacy of COCs may be reduced for example in the following events: missed active tablets (section 4.2), gastro-intestinal disturbances (section 4.2) during active tablet taking or concomitant medication (section 4.5).



Cycle control



With all COCs, irregular bleeding (spotting or breakthrough bleeding) may occur, especially during the first months of use. Therefore, the evaluation of any irregular bleeding is only meaningful after an adaptation interval of about 3 cycles.



Based on patient diaries from a comparative clinical trial, the percentage of women per cycle experiencing intracyclic bleeding was 10 – 18 % for women using Qlaira.



Users of Qlaira may experience amenorrhea although not being pregnant. Based on patient diaries, amenorrhea occurs in approximately 15% of cycles.



If Qlaira has been taken according to the directions described in Section 4.2, it is unlikely that the woman is pregnant. If Qlaira has not been taken according to these directions prior to the first missed withdrawal bleed or if the withdrawal bleeding is missed in two consecutive cycles, pregnancy must be ruled out before Qlaira use is continued.



If bleeding irregularities persist or occur after previously regular cycles, then non-hormonal causes should be considered and adequate diagnostic measures are indicated to exclude malignancy or pregnancy. These may include curettage.



4.5 Interaction With Other Medicinal Products And Other Forms Of Interaction



Note: The prescribing information of concomitant medications should be consulted to identify potential interactions.



Interaction studies have only been performed in adults.



Interactions of other medicinal products on Qlaira



Interactions between oral contraceptives and other drugs may lead to breakthrough bleeding and/or contraceptive failure. The following interactions have been reported in the literature for COCs in general or were studied in clinical trials with Qlaira.



Dienogest is a substrate of cytochrome P450 (CYP) 3A4.



Interactions can occur with phenytoin, barbiturates, primidone, carbamazepine, rifampicin, and possibly oxcarbazepine, topiramate, felbamate, HIV-medications (e.g. ritonavir and/or nevirapine), griseofulvin and the herbal remedy St. John's wort (hypericum perforatum). The mechanism of this interaction appears to be based on the hepatic enzyme-inducing properties (e.g. CYP 3A4 enzymes) of these drugs which can result in increased clearance of sex hormones.



Maximal enzyme induction is generally not seen for 2-3 weeks but may then be sustained for at least 4 weeks after the cessation of drug therapy.



In a clinical study the strong CYP 3A4 inducer rifampicin led to significant decreases in steady state concentrations and systemic exposures of dienogest and estradiol. The AUC (0-24h) of dienogest and estradiol at steady state, were decreased by 83% and 44%, respectively.



Women on short-term treatment (up to one week) with any of the above-mentioned classes of medicinal products or individual active substances besides rifampicin should temporarily use a barrier method in addition to the COC, i.e. during the time of concomitant medicinal product administration and for 14 days after their discontinuation.



For women on rifampicin a barrier method should be used in addition to the COC during the time of rifampicin administration and for 28 days after its discontinuation.



In women on chronic treatment with hepatic enzyme-inducing active substances, another reliable, non-hormonal, method of contraception is recommended.



Known CYP3A4 enzyme inhibitors like azole antifungals, cimetidine, verapamil, macrolides, diltiazem, antidepressants and grapefruit juice may increase plasma levels of dienogest.



In a clinical study investigating the effect of CYP3A4 inhibitors (ketoconazole, erythromycin), steady state dienogest and estradiol plasma levels were increased. Co-administration with the strong CYP3A4 enzyme inhibitor ketoconazole resulted in a 186% and 57% increase of AUC(0-24h) at steady state for dienogest and estradiol, respectively. Concomitant administration of the moderate inhibitor erythromycin increased the AUC (0-24h) of dienogest and estradiol at steady state by 62% and 33%, respectively. The clinical relevance of these interactions is unknown.



Contraceptive failures have also been reported with antibiotics, such as penicillins and tetracyclines. The mechanism of this effect has not been elucidated.



Interactions of Qlaira on other medicinal products



Oral contraceptives may affect the metabolism of certain other active substances. Accordingly, plasma and tissue concentrations may either increase (e.g. cyclosporin) or decrease (e.g. lamotrigine).



Pharmacokinetics of nifedipine were not affected by concomitant administration of 2 mg dienogest + 0.03 mg ethinyl estradiol thus confirming results of in vitro studies indicating that inhibition of CYP enzymes by Qlaira is unlikely at the therapeutic dose.



Laboratory tests



The 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.



4.6 Pregnancy And Lactation



Qlaira should not be used during pregnancy.



If pregnancy occurs during use of Qlaira, further intake should be stopped. However, extensive epidemiological studies with ethinylestradiol containing COCs have revealed neither an increased risk of birth defects in children born to women who used COCs prior to pregnancy, nor a teratogenic effect when COCs were taken inadvertently during pregnancy. Animal studies do not indicate a risk for reproductive toxicity (see section 5.3).



Lactation may be influenced by COCs as they may reduce the quantity and change the composition of breast milk. Therefore, the use of COCs should generally not be recommended until the nursing mother has completely weaned her child. Small amounts of the contraceptive steroids and/or their metabolites may be excreted with the milk. These amounts may affect the child.



4.7 Effects On Ability To Drive And Use Machines



Qlaira has no influence on the ability to drive or use machines.



4.8 Undesirable Effects



The table below reports adverse reactions (ARs) by MedDRA system organ classes (MedDRA SOCs). The most appropriate MedDRA term (version 10.0) to describe a certain adverse reaction is listed. Synonyms or related conditions are not listed, but should be taken into account as well. The frequencies are based on clinical trial data. The adverse reactions were recorded in 3 phase III clinical studies (N=2,266 women at risk for pregnancy) and considered at least possibly causally related to Qlaira use. All ADRs listed in the category 'rare' occurred in 1 to 2 volunteers resulting in < 0.1%.



N= 2,266 women (100.0%)
































































System Organ Class




Common



(




Uncommon



(




Rare



(




Infections and infestations




 



 




Fungal infection



Vaginal candidiasis



Vaginal infection




Candidiasis



Herpes simplex



Presumed ocular histoplasmosis syndrome



Tinea versicolor



Urinary tract infection



Vaginitis bacterial



Vulvovaginal mycotic infection




Metabolism and nutrition disorders




 



 




Increased appetite




Fluid retention



Hypertriglyceridaemia




Psychiatric disorders




 



 




Depression/Depressed mood



Libido decreased



Mental disorder



Mood change



 




Affect lability



Aggression



Anxiety



Dysphoria



Libido increased



Nervousness



Restlessness



Sleep disorder



Stress




Nervous system disorders




Headache1




Dizziness




Disturbance in attention



Paraesthesia



Vertigo




Eye disorders




 



 




 



 




Contact lens intolerance




Vascular disorders




 



 




Hypertension



Migraine2




Bleeding varicose vein



Hot flush



Hypotension



Vein pain




Gastrointestinal disorders




Abdominal pain3




Diarrhoea



Nausea



Vomiting




Constipation



Dyspepsia



Gastrooesophageal reflux disease




Hepatobiliary disorders




 



 




 



 




Alanine aminotransferase increased



Focal nodular hyperplasia of the liver




Skin and subcutaneous tissue disorders




Acne




Alopecia



Pruritus4



Rash5



 



 




Allergic skin reaction6



Chloasma



Dermatitis



Hirsutism



Hypertrichosis



Neurodermatitis



Pigmentation disorder



Seborrhoea



Skin disorder7




Musculoskeletal and connective tissue disorders




 



 




 



 




Back pain



Muscle spasms



Sensation of heaviness




Reproductive system and breast disorders




Amenorrhea



Breast discomfort8



Dysmenorrhoea



 



Intracyclic bleeding (Metrorrhagia)9



 




Breast enlargement



Breast mass



Cervical dysplasia



Dysfunctional uterine bleeding



Dyspareunia



Fibrocystic breast disease



Menorrhagia



Menstrual disorder



Ovarian cyst



Pelvic pain



Premenstrual syndrome



Uterine leiomyoma



Uterine spasm



Vaginal discharge



Vulvovaginal dryness




Benign breast neoplasm



Breast cyst



Coital bleeding



Galactorrhea



Genital hemorrhage



Hypomenorrhoea



Menstruation delayed



Ovarian cyst ruptured



Vaginal burning sensation



Uterine/ vaginal bleeding incl. spotting



Vaginal odour



Vulvovaginal discomfort




Blood and lymphatic system disorders




 



 




 



 




Lymphadenopathy




General disorders and administration site conditions




 



 




Irritability



Oedema




Chest pain



Fatigue



Malaise




Investigations




Weight increased




Weight decreased




 



 



1including tension headache



2including migraine with aura and migraine without aura



3including abdominal distension



4including pruritus generalized and rash pruritic



5 including rash macular



6including dermatitis allergic and urticaria



7including skin tightness



8including breast pain, nipple disorder and nipple pain



9including menstruation irregular



Occurrence of amenorrhea and intracyclic bleeding based on patient diaries is summarized in section 4.4 Cycle control.



The following serious adverse events have been reported in women using COCs, which are discussed in section 4.4 Special warning and precautions for use:



- Venous thromboembolic disorders;



- Arterial thromboembolic disorders;



- Hypertension;



- Liver tumours;



- Occurrence or deterioration of conditions for which association with COC use is not conclusive: Crohn's disease, ulcerative colitis, epilepsy, migraine, uterine myoma, porphyria, systemic lupus erythematosus, herpes gestationis, Sydenham's chorea, haemolytic uremic syndrome, cholestatic jaundice;



- Chloasma;



- Acute or chronic disturbances of liver function may necessitate the discontinuation of COC use until markers of liver function return to normal.



- In women with hereditary angioedema exogenous estrogens may induce or exacerbate symptoms of angioedema.



The frequency of diagnosis of breast cancer is very slightly increased among OC users. As breast cancer is rare in women under 40 years of age the excess number is small in relation to the overall risk of breast cancer. Causation with COC use is unknown. For further information, see sections 4.3 and 4.4.



In addition to the above mentioned adverse reactions, erythema nodosum, erythema multiforme, breast discharge and hypersensitivity have occurred under treatment with ethinylestradiol containing COCs. Although these symptoms were not reported during the clinical studies performed with Qlaira, the possibility that they also occur under treatment cannot be ruled out.



4.9 Overdose



There have been no reports of serious deleterious effects from overdose. Symptoms that may occur in case of taking an overdose of active tablets are: nausea, vomiting and, in young girls, slight vaginal bleeding. There are no antidotes and further treatment should be symptomatic.



5. Pharmacological Properties



5.1 Pharmacodynamic Properties



Pharmacotherapeutic group: progestogens and estrogens, sequential preparations



ATC code: G03AB



In clinical trials performed with Qlaira in the European Union and in the USA/Canada the following Pearl indices were calculated:



Pearl Index (18-50 years of age)



Method failure: 0.42 (upper limit 95% CI 0.77)



User + method failure: 0.79 (upper limit 95% CI 1.23)



Pearl Index (18-35 years of age)



Method failure: 0.51 (upper limit 95% CI 0.97)



User + method failure: 1.01 (upper limit 95% CI 1.59)



The contraceptive effect of COCs is based on the interaction of various factors, the most important of which are seen as the inhibition of ovulation, changes in the cervical secretion, and changes in the endometrium.



The estrogen in Qlaira is estradiol valerate, an ester of the natural human 17ß-estradiol (1 mg estradiol valerate corresponds to 0.76 mg 17 ß-estradiol). This estrogen differs from the estrogens ethinylestradiol or its prodrug mestranol used in other COCs by the lack of an ethinyl group in 17alpha position.



Dienogest is a nortestosterone derivative with no androgenic but rather an antiandrogenic activity of approximately one third of that of cyproterone acetate. Dienogest binds to the progesterone receptor of the human uterus with only 10% of the relative affinity of progesterone. Despite its low affinity to the progesterone receptor, dienogest has a strong progestogenic effect in vivo. Dienogest has no significant androgenic, mineralocorticoid or glucocorticoid activity in vivo.



Endometrial histology was investigated in a subgroup of women (n=218) in one clinical study after 20 cycles of treatment. There were no abnormal results.



5.2 Pharmacokinetic Properties



Dienogest



Absorption



Orally administered dienogest is rapidly and almost completely absorbed. Maximal serum concentrations of 90.5 ng/ml are reached at about 1 hour after oral administration of the Qlaira tablet containing 2 mg estradiol valerate + 3 mg dienogest. Bioavailability is about 91 %. The pharmacokinetics of dienogest are dose-proportional within the dose range of 1 – 8 mg.



Concomitant food intake has no clinically relevant effect on the rate and extent of dienogest absorption.



Distribution



A relatively high fraction of 10% of circulating dienogest is present in the free form, with approx. 90% being bound non-specifically to albumin. Dienogest does not bind to the specific transport proteins SHBG and CBG. The volume of distribution at steady state (Vd,ss) of dienogest is 46 l after the intravenous administration of 85 µg 3H-dienogest.



Metabolism



Dienogest is nearly completely metabolized by the known pathways of steroid metabolism (hydroxylation, conjugation), mainly by CYP3A4. The pharmacologically inactive metabolites are excreted rapidly resulting in dienogest as the major fraction in plasma accounting for approximately 50% of circulating dienogest derived compounds. The total clearance following the intravenous administration of 3H-dienogest was calculated as 5.1 l/h.



Elimination



The plasma half-life of dienogest is approximately 11 hours. Dienogest is extensively metabolized and only 1% of drug is excreted unchanged. The ratio of urinary to fecal excretion is about 3:1 after oral administration of 0.1 mg/kg. Following oral administration, 42% of the dose is eliminated within the first 24 h and 63% within 6 days by renal excretion. A combined 86% of the dose is excreted by urine and feces after 6 days.



Steady-State Conditions



Pharmacokinetics of dienogest are not influenced by SHBG levels. Steady state is reached after 3 days of the same dosage of 3 mg dienogest in combination with 2 mg estradiol valerate. Trough, maximum and average dienogest serum concentrations at steady state are 11.8 ng/ml, 82.9 ng/ml and 33.7 ng/ml, respectively. The mean accumulation ratio for AUC (0-24h) was determine