Thursday, 29 September 2016

Ocufen


Generic Name: flurbiprofen ophthalmic (FLUR bi PROE fen)

Brand Names: Ocufen


What is Ocufen (flurbiprofen ophthalmic)?

Flurbiprofen is in a group of drugs called nonsteroidal anti-inflammatory drugs (NSAIDs). Flurbiprofen works by reducing hormones that cause inflammation and pain in the body.


Flurbiprofen ophthalmic (for the eye) is used to prevent your pupil from constricting, or narrowing, during eye surgery.

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


What is the most important information I should know about Ocufen (flurbiprofen ophthalmic)?


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

Before you receive flurbiprofen ophthalmic, tell your doctor if you are allergic to any medications, or if you have a bleeding or blood-clotting disorder or take a blood thinner such as warfarin (Coumadin).


Do not wear any contact lens that has not been approved by your doctor.

Do not use other eye medications during treatment with flurbiprofen ophthalmic unless your doctor tells you to.


What should I discuss with my healthcare provider before I receive Ocufen (flurbiprofen ophthalmic)?


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

To make sure you can safely use flurbiprofen ophthalmic, tell your doctor if you have a bleeding or blood-clotting disorder.


FDA pregnancy category C. It is not known whether flurbiprofen ophthalmic will harm an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant while using this medication. It is not known whether flurbiprofen ophthalmic passes into breast milk or if it could harm a nursing baby. Tell your doctor if you are breast-feeding a baby.

How should I use Ocufen (flurbiprofen ophthalmic)?


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


Flurbiprofen ophthalmic is usually given every 30 minutes beginning 2 hours before your surgery. If you receive this medication at the surgery center, the eye drops will be given by a healthcare professional.


If you have been given the medication to start using your drops at home on the day of your surgery, follow the instructions below.


Wash your hands before using the eye drops.

To apply the eye drops:



  • Tilt your head back slightly and pull down your lower eyelid to create a small pocket. Hold the dropper above the eye with the tip down. Look up and away from the dropper as you squeeze out a drop, then close your eye.




  • Gently press your finger to the inside corner of the eye (near your nose) for about 1 minute to keep the liquid from draining into your tear duct.




  • Use the eye drops only in the eye you are having surgery on.




  • Do not allow the dropper tip to touch any surface, including the eyes or hands. If the dropper becomes contaminated it could cause an infection in your eye, which can lead to vision loss or serious damage to the eye.



If you use this medication at home, try not to miss any doses.


If you store the drops at home, keep them at room temperature away from heat and moisture. Keep the bottle tightly closed when not in use.

What happens if I miss a dose?


Call your doctor if you miss a dose of this medication. The timing of your doses in relation to your surgery is very important for the medication to be effective.


What happens if I overdose?


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

What should I avoid after I receive Ocufen (flurbiprofen ophthalmic)?


Do not wear any contact lens that has not been approved by your doctor.

Do not use other eye medications during treatment with flurbiprofen ophthalmic unless your doctor tells you to.


Ocufen (flurbiprofen ophthalmic) 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. Call your doctor at once if you have a serious side effect such as:

  • eye pain or redness;




  • vision changes; or




  • severe burning, stinging, or itching of your eyes.



Less serious side effects may include mild burning, stinging, or itching of your eyes.


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.


What other drugs will affect Ocufen (flurbiprofen ophthalmic)?


Tell your doctor about all other medications you use, especially a blood thinner such as warfarin (Coumadin).


This list is not complete and other drugs may interact with flurbiprofen ophthalmic. 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 Ocufen resources


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


  • Ocufen Prescribing Information (FDA)

  • Ocufen eent Monograph (AHFS DI)

  • Ocufen Drops MedFacts Consumer Leaflet (Wolters Kluwer)



Compare Ocufen with other medications


  • Inhibition of Intraoperative Miosis
  • Postoperative Ocular Inflammation


Where can I get more information?


  • Your doctor or pharmacist can provide more information about flurbiprofen ophthalmic.

See also: Ocufen side effects (in more detail)


Wednesday, 28 September 2016

Neupogen Singleject 48 MU (0.96 mg / ml)





1. Name Of The Medicinal Product



NEUPOGEN® Singleject 48 MU (0.96 mg/ml) solution for injection in a pre-filled syringe



filgrastim


2. Qualitative And Quantitative Composition



Each pre-filled syringe contains 48 million units (480 micrograms (μg)) of filgrastim in 0.5 ml (0.96 mg/ml).



Filgrastim (recombinant methionyl human granulocyte-colony stimulating factor) is produced by r-DNA technology in E. coli (K12).



Excipients known to have a recognised action:



Each ml of solution contains 0.0015 to 0.0023 mmol or 0.035 to 0.052 mg sodium and 50 mg of sorbitol (E420).



For a full list of excipients, see section 6.1



3. Pharmaceutical Form



Solution for injection in a pre-filled syringe.



Concentrate for solution for infusion in a pre-filled syringe.



Clear, colourless solution.



4. Clinical Particulars



4.1 Therapeutic Indications



NEUPOGEN is indicated for the reduction in the duration of neutropenia and the incidence of febrile neutropenia in patients treated with established cytotoxic chemotherapy for malignancy (with the exception of chronic myeloid leukaemia and myelodysplastic syndromes) and for the reduction in the duration of neutropenia in patients undergoing myeloablative therapy followed by bone marrow transplantation considered to be at increased risk of prolonged severe neutropenia.



The safety and efficacy of NEUPOGEN are similar in adults and children receiving cytotoxic chemotherapy.



NEUPOGEN is indicated for the mobilisation of peripheral blood progenitor cells (PBPCs).



In patients, children or adults, with severe congenital, cyclic, or idiopathic neutropenia with an ANC of 9/L, and a history of severe or recurrent infections, long term administration of NEUPOGEN is indicated to increase neutrophil counts and to reduce the incidence and duration of infection-related events.



NEUPOGEN is indicated for the treatment of persistent neutropenia (ANC less than or equal to 1.0 x109/L) in patients with advanced HIV infection, in order to reduce the risk of bacterial infections when other options to manage neutropenia are inappropriate.



4.2 Posology And Method Of Administration



Established cytotoxic chemotherapy



The recommended dose of NEUPOGEN is 0.5 MU (5 μg)/kg/day. The first dose of NEUPOGEN should not be administered less than 24 hours following cytotoxic chemotherapy. NEUPOGEN may be given as a daily subcutaneous injection or as a daily intravenous infusion diluted in 5% glucose solution given over 30 minutes (see section 6.6). The subcutaneous route is preferred in most cases. There is some evidence from a study of single dose administration that intravenous dosing may shorten the duration of effect. The clinical relevance of this finding to multiple dose administration is not clear. The choice of route should depend on the individual clinical circumstance. In randomised clinical trials, a subcutaneous dose of 230 μg/m2/day (4.0 to 8.4 μg/kg/day) was used.



Daily dosing with NEUPOGEN should continue until the expected neutrophil nadir is passed and the neutrophil count has recovered to the normal range. Following established chemotherapy for solid tumours, lymphomas, and lymphoid leukaemia, it is expected that the duration of treatment required to fulfil these criteria will be up to 14 days. Following induction and consolidation treatment for acute myeloid leukaemia the duration of treatment may be substantially longer (up to 38 days) depending on the type, dose and schedule of cytotoxic chemotherapy used.



In patients receiving cytotoxic chemotherapy, a transient increase in neutrophil counts is typically seen 1 to 2 days after initiation of NEUPOGEN therapy. However, for a sustained therapeutic response, NEUPOGEN therapy should not be discontinued before the expected nadir has passed and the neutrophil count has recovered to the normal range. Premature discontinuation of NEUPOGEN therapy, prior to the time of the expected neutrophil nadir, is not recommended.



In patients treated with myeloablative therapy followed by bone marrow transplantation



The recommended starting dose of NEUPOGEN is 1.0 MU (10 μg)/kg/day given as a 30 minute or 24 hour intravenous infusion or 1.0 MU (10 μg)/kg/day given by continuous 24 hour subcutaneous infusion. NEUPOGEN should be diluted in 20 ml of 5% glucose solution (see section 6.6).



The first dose of NEUPOGEN should not be administered less than 24 hours following cytotoxic chemotherapy and within 24 hours of bone marrow infusion.



Once the neutrophil nadir has been passed, the daily dose of NEUPOGEN should be titrated against the neutrophil response as follows:














Neutrophil Count




NEUPOGEN Dose Adjustment




> 1.0 x 109/L for 3 consecutive days




Reduce to 0.5 MU/kg/day




Then, if ANC remains > 1.0 x 109/L for 3 more consecutive days




Discontinue NEUPOGEN




If the ANC decreases to < 1.0 x 109/L during the treatment period the dose of NEUPOGEN should be re-escalated according to the above steps


 


ANC = absolute neutrophil count


 


For the mobilisation of PBPCs in patients undergoing myelosuppressive or myeloablative therapy followed by autologous PBPC transplantation



The recommended dose of NEUPOGEN for PBPC mobilisation when used alone is 1.0 MU (10 μg)/kg/day as a 24 hour subcutaneous continuous infusion or a single daily subcutaneous injection for 5 to 7 consecutive days. For infusions NEUPOGEN should be diluted in 20 ml of 5% glucose solution (see section 6.6). Timing of leukapheresis: one or two leukapheresis on days 5 and 6 are often sufficient. In other circumstances, additional leukapheresis may be necessary. NEUPOGEN dosing should be maintained until the last leukapheresis.



The recommended dose of NEUPOGEN for PBPC mobilisation after myelosuppressive chemotherapy is 0.5 MU (5 μg)/kg/day given daily by subcutaneous injection from the first day after completion of chemotherapy until the expected neutrophil nadir is passed and the neutrophil count has recovered to the normal range. Leukapheresis should be performed during the period when the ANC rises from < 0.5 x 109/L to > 5.0 x 109/L. For patients who have not had extensive chemotherapy, one leukapheresis is often sufficient. In other circumstances, additional leukapheresis are recommended.



For the mobilisation of PBPCs in normal donors prior to allogeneic PBPC transplantation



For PBPC mobilisation in normal donors, NEUPOGEN should be administered at 10 μg/kg/day subcutaneously for 4 to 5 consecutive days. Leukapheresis should be started at day 5 and continued until day 6 if needed in order to collect 4 x 106 CD34+ cells/kg recipient bodyweight.



In patients with severe chronic neutropenia (SCN)



Congenital neutropenia: the recommended starting dose is 1.2 MU (12 μg)/kg/day subcutaneously as a single dose or in divided doses.



Idiopathic or cyclic neutropenia: the recommended starting dose is 0.5 MU (5 μg)/kg/day subcutaneously as a single dose or in divided doses.



Dose adjustment: NEUPOGEN should be administered daily by subcutaneous injection until the neutrophil count has reached and can be maintained at more than 1.5 x 109/L. When the response has been obtained the minimal effective dose to maintain this level should be established. Long-term daily administration is required to maintain an adequate neutrophil count. After one to two weeks of therapy, the initial dose may be doubled or halved depending upon the patient's response. Subsequently the dose may be individually adjusted every 1 to 2 weeks to maintain the average neutrophil count between 1.5 x 109/L and 10 x 109/L. A faster schedule of dose escalation may be considered in patients presenting with severe infections. In clinical trials, 97% of patients who responded had a complete response at doses



Other particulars



NEUPOGEN therapy should only be given in collaboration with an oncology centre which has experience in G-CSF treatment and haematology and has the necessary diagnostic facilities. The mobilisation and apheresis procedures should be performed in collaboration with an oncology-haematology centre with acceptable experience in this field and where the monitoring of haematopoietic progenitor cells can be correctly performed.



Clinical trials with NEUPOGEN have included a small number of elderly patients but special studies have not been performed in this group and therefore specific dosage recommendations cannot be made.



Studies of NEUPOGEN in patients with severe impairment of renal or hepatic function demonstrate that it exhibits a similar pharmacokinetic and pharmacodynamic profile to that seen in normal individuals. Dose adjustment is not required in these circumstances.



Paediatric use in the SCN and cancer settings



Sixty-five percent of the patients studied in the SCN trial program were under 18 years of age. The efficacy of treatment was clear for this age group, which included most patients with congenital neutropenia. There were no differences in the safety profiles for paediatric patients treated for SCN.



Data from clinical studies in paediatric patients indicate that the safety and efficacy of NEUPOGEN are similar in both adults and children receiving cytotoxic chemotherapy.



The dosage recommendations in paediatric patients are the same as those in adults receiving myelosuppressive cytotoxic chemotherapy.



In patients with HIV infection



For reversal of neutropenia



The recommended starting dose of NEUPOGEN is 0.1 MU (1 μg)/kg/day given daily by subcutaneous injection with titration up to a maximum of 0.4 MU (4 μg)/kg/day until a normal neutrophil count is reached and can be maintained (ANC > 2.0 x109/L). In clinical studies, > 90% of patients responded at these doses, achieving reversal of neutropenia in a median of 2 days.



In a small number of patients (< 10%), doses up to 1.0 MU (10 μg)/kg/day were required to achieve reversal of neutropenia.



For maintaining normal neutrophil counts



When reversal of neutropenia has been achieved, the minimal effective dose to maintain a normal neutrophil count should be established. Initial dose adjustment to alternate day dosing with 30 MU (300 μg)/day by subcutaneous injection is recommended. Further dose adjustment may be necessary, as determined by the patient's ANC, to maintain the neutrophil count at > 2.0 x 109/L. In clinical studies, dosing with 30 MU (300 μg)/day on 1 to 7 days per week was required to maintain the ANC > 2.0 x 109/L, with the median dose frequency being 3 days per week. Long-term administration may be required to maintain the ANC > 2.0 x 109/L.



4.3 Contraindications



Hypersensitivity to the active substance or to any of the excipients



4.4 Special Warnings And Precautions For Use



Neupogen should not be used to increase the dose of cytotoxic chemotherapy beyond established dosage regimens.



Neupogen should not be administered to patients with severe congenital neutropenia who develop leukaemia or have evidence of leukaemic evolution.



Malignant cell growth



Granulocyte-colony stimulating factor can promote growth of myeloid cells in vitro and similar effects may be seen on some non-myeloid cells in vitro.



The safety and efficacy of NEUPOGEN administration in patients with myelodysplastic syndrome, or chronic myelogenous leukaemia have not been established.



NEUPOGEN is not indicated for use in these conditions. Particular care should be taken to distinguish the diagnosis of blast transformation of chronic myeloid leukaemia from acute myeloid leukaemia.



In view of limited safety and efficacy data in patients with secondary AML, NEUPOGEN should be administered with caution.



The safety and efficacy of NEUPOGEN administration in de novo AML patients aged < 55 years with good cytogenetics (t(8;21), t(15;17), and inv(16)) have not been established.



Other special precautions



Monitoring of bone density may be indicated in patients with underlying osteoporotic bone diseases who undergo continuous therapy with NEUPOGEN for more than 6 months.



Pulmonary adverse effects, in particular interstitial pneumonia, have been reported after G-CSF administration. Patients with a recent history of lung infiltrates or pneumonia may be at higher risk. The onset of pulmonary signs, such as cough, fever and dyspnoea in association with radiological signs of pulmonary infiltrates and deterioration in pulmonary function may be preliminary signs of acute respiratory distress syndrome (ARDS). NEUPOGEN should be discontinued and appropriate treatment given.



The needle cover of the pre-filled syringe contains dry natural rubber (a derivative of latex), which may cause allergic reactions.



Special precautions in cancer patients



Leukocytosis



White blood cell counts of 100 x 109/L or greater have been observed in less than 5% of patients receiving NEUPOGEN at doses above 0.3 MU/kg/day (3 μg/kg/day). No undesirable effects directly attributable to this degree of leukocytosis have been reported. However, in view of the potential risks associated with severe leukocytosis, a white blood cell count should be performed at regular intervals during NEUPOGEN therapy. If leukocyte counts exceed 50 x 109/L after the expected nadir, NEUPOGEN should be discontinued immediately. However, during the period of administration of NEUPOGEN for PBPC mobilisation, NEUPOGEN should be discontinued or its dosage should be reduced if the leukocyte counts rise to > 70 x 109/L.



Risks associated with increased doses of chemotherapy



Special caution should be used when treating patients with high dose chemotherapy, because improved tumour outcome has not been demonstrated and intensified doses of chemotherapeutic agents may lead to increased toxicities including cardiac, pulmonary, neurologic, and dermatologic effects (please refer to the prescribing information of the specific chemotherapy agents used).



Treatment with NEUPOGEN alone does not preclude thrombocytopenia and anaemia due to myelosuppressive chemotherapy. Because of the potential of receiving higher doses of chemotherapy (e.g., full doses on the prescribed schedule) the patient may be at greater risk of thrombocytopenia and anaemia. Regular monitoring of platelet count and haematocrit is recommended. Special care should be taken when administering single or combination chemotherapeutic agents which are known to cause severe thrombocytopenia.



The use of NEUPOGEN-mobilised PBPCs has been shown to reduce the depth and duration of thrombocytopenia following myelosuppressive or myeloablative chemotherapy.



Other special precautions



The effects of NEUPOGEN in patients with substantially reduced myeloid progenitors have not been studied. NEUPOGEN acts primarily on neutrophil precursors to exert its effect in elevating neutrophil counts. Therefore, in patients with reduced precursors neutrophil response may be diminished (such as those treated with extensive radiotherapy or chemotherapy, or those with bone marrow infiltration by tumour).



There have been reports of GvHD and fatalities in patients receiving G-CSF after allogeneic bone marrow transplantation (see section 5.1).



Increased haematopoietic activity of the bone marrow in response to growth factor therapy has been associated with transient abnormal bone scans. This should be considered when interpreting bone-imaging results.



Special precautions in patients undergoing PBPC mobilisation



Mobilisation



There are no prospectively randomised comparisons of the two recommended mobilisation methods (NEUPOGEN alone, or in combination with myelosuppressive chemotherapy) within the same patient population. The degree of variation between individual patients and between laboratory assays of CD34+ cells mean that direct comparison between different studies is difficult. It is therefore difficult to recommend an optimum method. The choice of mobilisation method should be considered in relation to the overall objectives of treatment for an individual patient.



Prior exposure to cytotoxic agents



Patients who have undergone very extensive prior myelosuppressive therapy may not show sufficient mobilisation of PBPC to achieve the recommended minimum yield (6 CD34+ cells/kg) or acceleration of platelet recovery, to the same degree.



Some cytotoxic agents exhibit particular toxicities to the haematopoietic progenitor pool, and may adversely affect progenitor mobilisation. Agents such as melphalan, carmustine (BCNU), and carboplatin, when administered over prolonged periods prior to attempts at progenitor mobilisation may reduce progenitor yield. However, the administration of melphalan, carboplatin or BCNU together with NEUPOGEN, has been shown to be effective for progenitor mobilisation. When a PBPC transplantation is envisaged it is advisable to plan the stem cell mobilisation procedure early in the treatment course of the patient. Particular attention should be paid to the number of progenitors mobilised in such patients before the administration of high-dose chemotherapy. If yields are inadequate, as measured by the criteria above, alternative forms of treatment, not requiring progenitor support should be considered.



Assessment of progenitor cell yields



In assessing the number of progenitor cells harvested in patients treated with NEUPOGEN, particular attention should be paid to the method of quantitation. The results of flow cytometric analysis of CD34+ cell numbers vary depending on the precise methodology used and recommendations of numbers based on studies in other laboratories need to be interpreted with caution.



Statistical analysis of the relationship between the number of CD34+ cells re-infused and the rate of platelet recovery after high-dose chemotherapy indicates a complex but continuous relationship.



The recommendation of a minimum yield of 6 CD34+ cells/kg is based on published experience resulting in adequate haematologic reconstitution. Yields in excess of this appear to correlate with more rapid recovery, those below with slower recovery.



Special precautions in normal donors undergoing PBPC mobilisation



Mobilisation of PBPC does not provide a direct clinical benefit to normal donors and should only be considered for the purposes of allogeneic stem cell transplantation.



PBPC mobilisation should be considered only in donors who meet normal clinical and laboratory eligibility criteria for stem cell donation with special attention to haematological values and infectious disease.



The safety and efficacy of NEUPOGEN have not been assessed in normal donors < 16 years or > 60 years.



Transient thrombocytopenia (platelets < 100 x 109/L) following filgrastim administration and leukapheresis was observed in 35% of subjects studied. Among these, two cases of platelets < 50 x 109/L were reported and attributed to the leukapheresis procedure.



If more than one leukapheresis is required, particular attention should be paid to donors with platelets < 100 x 109/L prior to leukapheresis; in general apheresis should not be performed if platelets < 75 x 109/L.



Leukapheresis should not be performed in donors who are anticoagulated or who have known defects in haemostasis.



NEUPOGEN administration should be discontinued or its dosage should be reduced if the leukocyte counts rise to > 70 x109/L.



Donors who receive G



Transient cytogenetic abnormalities have been observed in normal donors following G-CSF use. The significance of these changes is unknown.



Long



Common but generally asymptomatic cases of splenomegaly and very rare cases of splenic rupture have been reported in healthy donors (and patients) following administration of granulocyte-colony stimulating factors (G-CSFs). Some cases of splenic rupture were fatal. Therefore, spleen size should be carefully monitored (e.g. clinical examination, ultrasound). A diagnosis of splenic rupture should be considered in donors and/or patients reporting left upper abdominal pain or shoulder tip pain.



In normal donors, pulmonary adverse events (haemoptysis, pulmonary haemorrhage, lung infiltrates, dyspnoea and hypoxia) have been reported very rarely in post marketing experience. In case of suspected or confirmed pulmonary adverse events, discontinuation of treatment with NEUPOGEN should be considered and appropriate medical care given.



Special precautions in recipients of allogeneic PBPCs mobilised with NEUPOGEN



Current data indicate that immunological interactions between the allogeneic PBPC graft and the recipient may be associated with an increased risk of acute and chronic GvHD when compared with bone marrow transplantation.



Special precautions in SCN patients



Blood cell counts



Platelet counts should be monitored closely, especially during the first few weeks of NEUPOGEN therapy. Consideration should be given to intermittent cessation or decreasing the dose of NEUPOGEN in patients who develop thrombocytopenia, i.e. platelets consistently < 100,000/mm3.



Other blood cell changes occur, including anaemia and transient increases in myeloid progenitors, which require close monitoring of cell counts.



Transformation to leukaemia or myelodysplastic syndrome



Special care should be taken in the diagnosis of SCNs to distinguish them from other haematopoietic disorders such as aplastic anaemia, myelodysplasia, and myeloid leukaemia. Complete blood cell counts with differential and platelet counts, and an evaluation of bone marrow morphology and karyotype should be performed prior to treatment.



There was a low frequency (approximately 3%) of myelodysplastic syndromes (MDS) or leukaemia in clinical trial patients with SCN treated with NEUPOGEN. This observation has only been made in patients with congenital neutropenia. MDS and leukaemias are natural complications of the disease and are of uncertain relation to NEUPOGEN therapy. A subset of approximately 12% of patients who had normal cytogenetic evaluations at baseline was subsequently found to have abnormalities, including monosomy 7, on routine repeat evaluation. It is currently unclear whether long-term treatment of patients with SCN will predispose patients to cytogenetic abnormalities, MDS or leukaemic transformation. It is recommended to perform morphologic and cytogenetic bone marrow examinations in patients at regular intervals (approximately every 12 months).



Other special precautions



Causes of transient neutropenia, such as viral infections should be excluded.



Splenomegaly is a direct effect of treatment with NEUPOGEN. Thirty-one percent (31%) of patients in studies were documented as having palpable splenomegaly. Increases in volume, measured radiographically, occurred early during NEUPOGEN therapy and tended to plateau. Dose reductions were noted to slow or stop the progression of splenic enlargement, and in 3% of patients a splenectomy was required. Spleen size should be evaluated regularly. Abdominal palpation should be sufficient to detect abnormal increases in splenic volume.



Haematuria/proteinuria occurred in a small number of patients. Regular urinanalysis should be performed to monitor this event.



The safety and efficacy in neonates and patients with autoimmune neutropenia have not been established.



Special precautions in patients with HIV infection



Blood cell counts



Absolute neutrophil count (ANC) should be monitored closely, especially during the first few weeks of NEUPOGEN therapy. Some patients may respond very rapidly and with a considerable increase in neutrophil count to the initial dose of NEUPOGEN. It is recommended that the ANC is measured daily for the first 2 - 3 days of NEUPOGEN administration. Thereafter, it is recommended that the ANC is measured at least twice per week for the first two weeks and subsequently once per week or once every other week during maintenance therapy. During intermittent dosing with 30 MU (300 μg)/day of NEUPOGEN, there can be wide fluctuations in the patient's ANC over time. In order to determine a patient's trough or nadir ANC, it is recommended that blood samples are taken for ANC measurement immediately prior to any scheduled dosing with NEUPOGEN.



Risk associated with increased doses of myelosuppressive medications



Treatment with NEUPOGEN alone does not preclude thrombocytopenia and anaemia due to myelosuppressive medications. As a result of the potential to receive higher doses or a greater number of these medications with NEUPOGEN therapy, the patient may be at higher risk of developing thrombocytopenia and anaemia. Regular monitoring of blood counts is recommended (see above).



Infections and malignancies causing myelosuppression



Neutropenia may be due to bone marrow infiltrating opportunistic infections such as Mycobacterium avium complex or malignancies such as lymphoma. In patients with known bone marrow infiltrating infections or malignancy, consider appropriate therapy for treatment of the underlying condition, in addition to administration of NEUPOGEN for treatment of neutropenia. The effects of NEUPOGEN on neutropenia due to bone marrow infiltrating infection or malignancy have not been well established.



Special precautions in sickle cell disease



Sickle cell crises, in some cases fatal, have been reported with the use of NEUPOGEN in subjects with sickle cell disease. Physicians should exercise caution when considering the use of NEUPOGEN in patients with sickle cell disease, and only after careful evaluation of the potential risks and benefits.



All patients.



Neupogen contains sorbitol (E420). Patients with rare hereditary problems of fructose intolerance should not take this medicine.



Neupogen contains less than 1 mmol (23 mg) sodium per 0.96 mg/ml, i.e. essentially sodium free.



In order to improve the traceability of granulocyte-colony stimulating factors (G-CSFs), the trade name of the administered product should be clearly recorded in the patient file.



4.5 Interaction With Other Medicinal Products And Other Forms Of Interaction



The safety and efficacy of NEUPOGEN given on the same day as myelosuppressive cytotoxic chemotherapy have not been definitively established. In view of the sensitivity of rapidly dividing myeloid cells to myelosuppressive cytotoxic chemotherapy, the use of NEUPOGEN is not recommended in the period from 24 hours before to 24 hours after chemotherapy. Preliminary evidence from a small number of patients treated concomitantly with NEUPOGEN and 5-Fluorouracil indicates that the severity of neutropenia may be exacerbated.



Possible interactions with other haematopoietic growth factors and cytokines have not yet been investigated in clinical trials.



Since lithium promotes the release of neutrophils, lithium is likely to potentiate the effect of NEUPOGEN. Although this interaction has not been formally investigated, there is no evidence that such an interaction is harmful.



4.6 Pregnancy And Lactation



The safety of NEUPOGEN has not been established in pregnant women. There are reports in the literature where the transplacental passage of filgrastim in pregnant women has been demonstrated. There is no evidence from studies in rats and rabbits that NEUPOGEN is teratogenic. An increased incidence of embryo-loss has been observed in rabbits, but no malformation has been seen. In pregnancy, the possible risk of NEUPOGEN use to the foetus must be weighed against the expected therapeutic benefit.



It is not known whether NEUPOGEN is excreted in human milk. NEUPOGEN is not recommended for use in nursing women.



4.7 Effects On Ability To Drive And Use Machines



No studies on the effects on the ability to drive and use machines have been performed.



4.8 Undesirable Effects



Clinical trial experience



All undesirable effects are grouped according to the order based on the MeDRA System Organ Classes (SOC). Within each frequency grouping, undesirable effects are presented in order of decreasing seriousness. Assessment of undesirable effects is based on the following frequency groupings:



Very common:



Common:



Uncommon:



Rare:



Very rare: <1/10,000



Not known: cannot be estimated from the available data



In cancer patients



In clinical trials the most frequent undesirable effects attributable to NEUPOGEN at the recommended dose were mild or moderate musculoskeletal pain, occurring in 10%, and severe musculoskeletal pain in 3% of patients. Musculoskeletal pain is usually controlled with standard analgesics. Less frequent undesirable effects include urinary abnormalities predominantly mild or moderate dysuria.



In randomised, placebo-controlled clinical trials, NEUPOGEN did not increase the incidence of undesirable effects associated with cytotoxic chemotherapy. Undesirable effects reported with equal frequency in patients treated with NEUPOGEN/ chemotherapy and placebo/chemotherapy included nausea and vomiting, alopecia, diarrhoea, fatigue, anorexia, mucosal inflammation, headache, cough, rash, chest pain, asthenia, pharyngolaryngeal pain, constipation and pain.



Reversible, dose-dependent and usually mild or moderate elevations of lactate dehydrogenase, alkaline phosphatase, uric acid, and gamma-glutamyl transferase occurred with NEUPOGEN in approximately 50%, 35%, 25%, and 10% of patients, respectively at recommended doses.



Transient decreases in blood pressure, not requiring clinical treatment, have been reported occasionally.



There have been reports of GvHD and fatalities in patients receiving G-CSF after allogeneic bone marrow transplantation (see section 5.1).



Vascular disorders, including veno-oclusive disease and fluid volume disturbances, have been reported occasionally in patients undergoing high dose chemotherapy followed by autologous bone marrow transplantation. The causal association with NEUPOGEN has not been established.

















































System organ class




Frequency




Undesirable effect




Metabolism and nutrition disorders




Very Common




Blood alkaline phosphatase increased



Blood lactate dehydrogenase increased



Blood uric acid increased




Common




Anorexia


 


Nervous system disorders




Common




Headache




Vascular disorders




Rare




Angiopathy




Respiratory, thoracic and mediastinal disorders




Common




Cough



Pharyngolaryngeal pain




Very Rare




Lung infiltration


 


Gastrointestinal disorders




Very Common




Nausea



Vomiting




Common




Constipation



Diarrhoea


 


Hepatobiliary disorders




Very Common




Gamma-glutamyl transferase increased




Skin and subcutaneous tissue disorders




Common




Alopecia



Rash




Musculoskeletal and connective tissue disorders




Common




Musculoskeletal pain




Renal and urinary disorders




Very Rare




Urine abnormality




General disorders and administration site conditions




Common




Fatigue



Asthenia



Mucosal inflammation



Chest pain




Uncommon




Pain


 


In PBPC mobilisation in normal donors



The most commonly reported undesirable effect was mild to moderate transient musculoskeletal pain. Leukocytosis (WBC > 50 x 109/L) was observed in 41% of donors and transient thrombocytopenia (platelets < 100 x 109/L) following filgrastim and leukapheresis was observed in 35% of donors.



Transient, minor increases in alkaline phosphatase, lactate dehydrogenase, aspartate aminotransferase and uric acid have been reported in normal donors receiving filgrastim; these were without clinical sequelae.



Exacerbation of arthritic symptoms has been observed very rarely.



Headaches, believed to be caused by filgrastim, have been reported in PBPC donor studies.



Common but generally asymptomatic cases of splenomegaly and very rare cases of splenic rupture have been reported in healthy donors and patients following administration of granulocyte-colony stimulating factors (G




























System organ class




Frequency




Undesirable effect




Blood lymphatic system disorders




Very Common




Leukocytosis



Thrombocytopenia




Uncommon




Spleen disorder


 


Metabolism and nutrition disorders




Common




Blood alkaline phosphatase increased



Blood lactate dehydrogenase increased




Uncommon




Aspartate aminotransferase increased



Hyperuricaemia


 


Nervous system disorders




Very Common




Headache




Musculoskeletal and connective tissue disorders




Very Common




Musculoskeletal pain




Uncommon




Rheumatoid arthritis aggravated


 


In SCN patients



Undesirable effects related to NEUPOGEN therapy in SCN patients have been reported and for some their frequency tends to decrease with time.



The most frequent undesirable effects attributable to NEUPOGEN were bone pain, and general musculoskeletal pain.



Other undesirable effects seen include splenomegaly, which may be progressive in a minority of cases and thrombocytopenia. Headache and diarrhoea have been reported shortly after starting NEUPOGEN therapy, typically in less than 10% of patients. Anaemia and epistaxis have also been reported.



Transient increases with no clinical symptoms were observed in serum uric acid, lactic dehydrogenase, and alkaline phosphatase. Transient, moderate decreases in non



Undesirable effects possibly related to NEUPOGEN therapy and typically occurring in < 2% of SCN patients were injection site reaction, headache, hepatomegaly, arthralgia, alopecia, osteoporosis, and rash.



During long term use cutaneous vasculitis has been reported in 2% of SCN patients. There have been very few instances of proteinuria/haematuria.














































System organ class




Frequency




Undesirable effect




Blood and lymphatic system disorders




Very Common




Anaemia



Splenomegaly




Common




Thrombocytopenia


 


Uncommon




Spleen disorder


 


Metabolism and nutrition disorders




Very Common




Blood alkaline phosphatase increased



Blood lactate dehydrogenase increased



Blood glucose decreased



Hyperuricaemia




Nervous system disorders




Common




Headache




Respiratory, thoracic and mediastinal disorders




Very Common




Epistaxis




Gastrointestinal disorders




Common




Diarrhoea




Hepatobiliary disorders




Common




Hepatomegaly




Skin and subcutaneous tissue disorders




Common




Alopecia



Cutaneous vasculitis



Rash




Musculoskeletal and connective tissue disorders




Very Common




Musculoskeletal pain




Common




Osteoporosis


 


Renal and urinary disorders




Uncommon




Haematuria



Proteinuria




General disorders and administration site conditions




Common




Injection site pain.



In patients with HIV



In clinical studies, the only undesirable effects that were consistently considered to be related to NEUPOGEN administration were musculoskeletal pain, predominantly mild to moderate bone pain and myalgia. The incidence of these events was similar to that reported in cancer patients.



Splenomegaly was reported to be related to NEUPOGEN therapy in < 3% of patients. In all cases this was mild or moderate on physical examination and the clinical course was benign; no patients had a diagnosis of hyperplenism and no patients underwent splenec

Kreon für Kinder




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Tuesday, 27 September 2016

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Cisplatin

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Monday, 26 September 2016

NEXIUM 40 mg Tablets





1. Name Of The Medicinal Product



NEXIUM 40 mg Tablets


2. Qualitative And Quantitative Composition



Each tablet contains 40 mg esomeprazole (as magnesium trihydrate).



Excipients: Sucrose 30 mg.



For a full list of excipients see section 6.1.



3. Pharmaceutical Form



Gastro-resistant tablet



40 mg: A pink, oblong, biconvex, film-coated tablet engraved 40 mg on one side and



4. Clinical Particulars



4.1 Therapeutic Indications



NEXIUM tablets are indicated for:



Gastro-Oesophageal Reflux Disease (GORD)



– treatment of erosive reflux oesophagitis.



Prolonged treatment after IV induced prevention of rebleeding of peptic ulcers.



Treatment of Zollinger Ellison Syndrome



4.2 Posology And Method Of Administration



The tablets should be swallowed whole with liquid. The tablets should not be chewed or crushed.



For patients who have difficulty in swallowing, the tablets can also be dispersed in half a glass of non-carbonated water. No other liquids should be used as the enteric coat may be dissolved. Stir until the tablets disintegrate and drink the liquid with the pellets immediately or within 30 minutes. Rinse the glass with half a glass of water and drink. The pellets must not be chewed or crushed.



For patients who cannot swallow, the tablets can be dispersed in non-carbonated water and administered through a gastric tube. It is important that the appropriateness of the selected syringe and tube is carefully tested. For preparation and administration instructions see section 6.6.



Adults and adolescents from the age of 12 years



Gastro-Oesophageal Reflux Disease (GORD)



Treatment of erosive reflux oesophagitis



40 mg once daily for 4 weeks.



An additional 4 weeks treatment is recommended for patients in whom oesophagitis has not healed or who have persistent symptoms.



Adults



Prolonged treatment after IV induced prevention of rebleeding of peptic ulcers.



40 mg once daily for 4 weeks after IV induced prevention of rebleeding of peptic ulcers.



Treatment of Zollinger Ellison Syndrome



The recommended initial dosage is Nexium 40 mg twice daily. The dosage should then be individually adjusted and treatment continued as long as clinically indicated. Based on the clinical data available, the majority of patients can be controlled on doses between 80 to 160 mg esomeprazole daily. With doses above 80 mg daily, the dose should be divided and given twice daily.



Children below the age of 12 years



For posology in patients aged 1 to 11 reference is made to the Nexium sachet SmPC.



Impaired renal function



Dose adjustment is not required in patients with impaired renal function. Due to limited experience in patients with severe renal insufficiency, such patients should be treated with caution, (see section 5.2).



Impaired hepatic function



Dose adjustment is not required in patients with mild to moderate liver impairment. For patients with severe liver impairment, a maximum dose of 20 mg NEXIUM should not be exceeded, (see section 5.2).



Elderly



Dose adjustment is not required in the elderly.



4.3 Contraindications



Known hypersensitivity to esomeprazole, substituted benzimidazoles or any other constituents of the formulation.



Esomeprazole should not be used concomitantly with nelfinavir (See section 4.5).



4.4 Special Warnings And Precautions For Use



In the presence of any alarm symptom (e.g. significant unintentional weight loss, recurrent vomiting, dysphagia, haematemesis or melaena) and when gastric ulcer is suspected or present, malignancy should be excluded, as treatment with NEXIUM may alleviate symptoms and delay diagnosis.



Patients on long-term treatment (particularly those treated for more than a year) should be kept under regular surveillance.



Patients on on-demand treatment should be instructed to contact their physician if their symptoms change in character. When prescribing esomeprazole for on-demand therapy, the implications for interactions with other pharmaceuticals, due to fluctuating plasma concentrations of esomeprazole should be considered, (see section 4.5).



When prescribing esomeprazole for eradication of Helicobacter pylori, possible drug interactions for all components in the triple therapy should be considered. Clarithromycin is a potent inhibitor of CYP3A4 and hence contraindications and interactions for clarithromycin should be considered when the triple therapy is used in patients concurrently taking other drugs metabolised via CYP3A4 such as cisapride.



This medicinal product contains sucrose. Patients with rare hereditary problems of fructose intolerance, glucose-galactose malabsorption or sucrase-isomaltase insufficiency should not take this medicine.



Treatment with proton pump inhibitors may lead to slightly increased risk of gastrointestinal infections such as Salmonella and Campylobacter (see section 5.1).



Co-administration of esomeprazole with atazanavir is not recommended (see section 4.5). If the combination of atazanavir with a proton pump inhibitor is judged unavoidable, close clinical monitoring is recommended in combination with an increase in the dose of atazanavir to 400 mg with 100 mg of ritonavir; esomeprazole 20 mg should not be exceeded.



Esomeprazole is a CYP2C19 inhibitor. When starting or ending treatment with esomeprazole, the potential for interactions with drugs metabolised through CYP2C19 should be considered. An interaction is observed between clopidogrel and omeprazole (see section 4.5). The clinical relevance of this interaction is uncertain. As a precaution, concomitant use of esomeprazole and clopidogrel should be discouraged.



Interference with laboratory tests



Increased CgA level may interfere with investigations for neuroendocrine tumours. To avoid this interference, esomeprazole treatment should be temporarily stopped for at least five days before CgA measurements.



4.5 Interaction With Other Medicinal Products And Other Forms Of Interaction



Effects of esomeprazole on the pharmacokinetics of other drugs



Medicinal products with pH dependent absorption



The decreased intragastric acidity during treatment with esomeprazole, might increase or decrease the absorption of drugs if the mechanism of absorption is influenced by gastric acidity. In common with the use of other inhibitors of acid secretion or antacids, the absorption of ketoconazole and itraconazole can decrease and the absorption of digoxin can increase during treatment with esomeprazole. Concomitant treatment with omeprazole (20 mg daily) and digoxin in healthy subjects increased the bioavailability of digoxin by 10% (up to 30% in two out of ten subjects). Digoxin toxicity has been rarely reported. However, caution should be exercised when esomeprazole is given at high doses in elderly patients. Therapeutic drug monitoring of digoxin should then be reinforced.



Omeprazole has been reported to interact with some protease inhibitors. The clinical importance and the mechanisms behind these reported interactions are not always known. Increased gastric pH during omeprazole treatment may change the absorption of the protease inhibitors. Other possible interaction mechanisms are via inhibition of CYP2C19. For atazanavir and nelfinavir, decreased serum levels have been reported when given together with omeprazole and concomitant administration is not recommended. Co-administration of omeprazole (40 mg once daily) with atazanavir 300 mg/ritonavir 100 mg to healthy volunteers resulted in a substantial reduction in atazanavir exposure (approximately 75% decrease in AUC, Cmax and Cmin). Increasing the atazanavir dose to 400 mg did not compensate for the impact of omeprazole on atazanavir exposure. The co-administration of omeprazole (20 mg qd) with atazanavir 400 mg/ritonavir 100 mg to healthy volunteers resulted in a decrease of approximately 30% in the atazanavir exposure as compared with the exposure observed with atazanavir 300 mg/ritonavir 100 mg qd without omeprazole 20 mg qd. Co-administration of omeprazole (40 mg qd) reduced mean nelfinavir AUC, Cmax and Cmin by 36–39 % and mean AUC, Cmax and Cmin for the pharmacologically active metabolite M8 was reduced by 75-92%. For saquinavir (with concomitant ritonavir), increased serum levels (80-100%) have been reported during concomitant omeprazole treatment (40 mg qd). Treatment with omeprazole 20 mg qd had no effect on the exposure of darunavir (with concomitant ritonavir) and amprenavir (with concomitant ritonavir). Treatment with esomeprazole 20 mg qd had no effect on the exposure of amprenavir (with and without concomitant ritonavir). Treatment with omeprazole 40 mg qd had no effect on the exposure of lopinavir (with concomitant ritonavir). Due to the similar pharmacodynamic effects and pharmacokinetic properties of omeprazole and esomeprazole, concomitant administration with esomeprazole and atazanavir is not recommended and concomitant administration with esomeprazole and nelfinavir is contraindicated.



Drugs metabolised by CYP2C19



Esomeprazole inhibits CYP2C19, the major esomeprazole-metabolising enzyme. Thus, when esomeprazole is combined with drugs metabolised by CYP2C19, such as diazepam, citalopram, imipramine, clomipramine, phenytoin etc., the plasma concentrations of these drugs may be increased and a dose reduction could be needed. This should be considered especially when prescribing esomeprazole for on-demand therapy. Concomitant administration of 30 mg esomeprazole resulted in a 45% decrease in clearance of the CYP2C19 substrate diazepam. Concomitant administration of 40 mg esomeprazole resulted in a 13% increase in trough plasma levels of phenytoin in epileptic patients. It is recommended to monitor the plasma concentrations of phenytoin when treatment with esomeprazole is introduced or withdrawn. Omeprazole (40 mg once daily) increased voriconazole (a CYP2C19 substrate) Cmax and AUC by 15% and 41%, respectively.



Concomitant administration of 40 mg esomeprazole to warfarin-treated patients in a clinical trial showed that coagulation times were within the accepted range. However, post-marketing, a few isolated cases of elevated INR of clinical significance have been reported during concomitant treatment. Monitoring is recommended when initiating and ending concomitant esomeprazole treatment during treatment with warfarin or other coumarine derivatives.



In healthy volunteers, concomitant administration of 40 mg esomeprazole resulted in a 32% increase in area under the plasma concentration-time curve (AUC) and a 31% prolongation of elimination half-life (t1/2) but no significant increase in peak plasma levels of cisapride. The slightly prolonged QTc interval observed after administration of cisapride alone, was not further prolonged when cisapride was given in combination with esomeprazole (see also section 4.4).



Esomeprazole has been shown to have no clinically relevant effects on the pharmacokinetics of amoxicillin or quinidine.



Studies evaluating concomitant administration of esomeprazole and either naproxen or rofecoxib did not identify any clinically relevant pharmacokinetic interactions during short-term studies.



In a crossover clinical study, clopidogrel (300 mg loading dose followed by 75 mg/day) alone and with omeprazole (80 mg at the same time as clopidogrel) were administered for 5 days. The exposure to the active metabolite of clopidogrel was decreased by 46% (Day 1) and 42% (Day 5) when clopidogrel and omeprazole were administered together. Mean inhibition of platelet aggregation (IPA) was diminished by 47% (24 hours) and 30% (Day 5) when clopidogrel and omeprazole were administered together. In another study it was shown that administering clopidogrel and omeprazole at different times did not prevent their interaction that is likely to be driven by the inhibitory effect of omeprazole on CYP2C19. Inconsistent data on the clinical implications of this PK/PD interaction in terms of major cardiovascular events have been reported from observational and clinical studies.



Effects of other drugs on the pharmacokinetics of esomeprazole



Esomeprazole is metabolised by CYP2C19 and CYP3A4. Concomitant administration of esomeprazole and a CYP3A4 inhibitor, clarithromycin (500 mg b.i.d.), resulted in a doubling of the exposure (AUC) to esomeprazole. Concomitant administration of esomeprazole and a combined inhibitor of CYP2C19 and CYP 3A4 may result in more than doubling of the esomeprazole exposure. The CYP2C19 and CYP3A4 inhibitor voriconazole increased omeprazole AUC by 280%. A dose adjustment of esomeprazole is not regularly required in either of these situations. However, dose adjustment should be considered in patients with severe hepatic impairment and if long-term treatment is indicated.



Drugs known to induce CYP2C19 or CYP3A4 or both (such as rifampicin and St. John's wort) may lead to decreased esomeprazole serum levels by increasing the esomeprazole metabolism.



4.6 Pregnancy And Lactation



For Nexium, clinical data on exposed pregnancies are insufficient. With the racemic mixture omeprazole data on a larger number of exposed pregnancies stemmed from epidemiological studies indicate no malformative nor foetotoxic effects. Animal studies with esomeprazole do not indicate direct or indirect harmful effects with respect to embryonal/foetal development. Animal studies with the racemic mixture do not indicate direct or indirect harmful effects with respect to pregnancy, parturition or postnatal development. Caution should be exercised when prescribing to pregnant women.



It is not known whether esomeprazole is excreted in human breast milk. No studies in lactating women have been performed. Therefore, NEXIUM should not be used during breast-feeding.



4.7 Effects On Ability To Drive And Use Machines



No effects have been observed.



4.8 Undesirable Effects



The following adverse drug reactions have been identified or suspected in the clinical trials programme for esomeprazole and post-marketing. None was found to be dose-related. The reactions are classified according to frequency 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).



Blood and lymphatic system disorders



Rare: Leukopenia, thrombocytopenia



Very rare: Agranulocytosis, pancytopenia



Immune system disorders



Rare: Hypersensitivity reactions e.g. fever, angioedema and anaphylactic reaction/shock



Metabolism and nutrition disorders



Uncommon: Peripheral oedema



Rare: Hyponatraemia



Very rare: Hypomagnesaemia



Psychiatric disorders



Uncommon: Insomnia



Rare: Agitation, confusion, depression



Very rare: Aggression, hallucinations



Nervous system disorders



Common: Headache



Uncommon: Dizziness, paraesthesia, somnolence



Rare: Taste disturbance



Eye disorders



Rare: Blurred vision



Ear and labyrinth disorders



Uncommon: Vertigo



Respiratory, thoracic and mediastinal disorders



Rare: Bronchospasm



Gastrointestinal disorders



Common: Abdominal pain, constipation, diarrhoea, flatulence, nausea/vomiting



Uncommon: Dry mouth



Rare: Stomatitis, gastrointestinal candidiasis



Hepatobiliary disorders



Uncommon: Increased liver enzymes



Rare: Hepatitis with or without jaundice



Very rare: Hepatic failure, encephalopathy in patients with pre-existing liver disease



Skin and subcutaneous tissue disorders



Uncommon: Dermatitis, pruritus, rash, urticaria



Rare: Alopecia, photosensitivity



Very rare: Erythema multiforme, Stevens-Johnson syndrome, toxic epidermal necrolysis (TEN)



Musculoskeletal, connective tissue and bone disorders



Rare: Arthralgia, myalgia



Very rare: Muscular weakness



Renal and urinary disorders



Very rare: Interstitial nephritis



Reproductive system and breast disorders



Very rare: Gynaecomastia



General disorders and administration site conditions



Rare: Malaise, increased sweating



4.9 Overdose



There is very limited experience to date with deliberate overdose. The symptoms described in connection with 280 mg were gastrointestinal symptoms and weakness. Single doses of 80 mg esomeprazole were uneventful. No specific antidote is known. Esomeprazole is extensively plasma protein bound and is therefore not readily dialyzable. As in any case of overdose, treatment should be symptomatic and general supportive measures should be utilised.



5. Pharmacological Properties



5.1 Pharmacodynamic Properties



Pharmacotherapeutic group: Proton Pump Inhibitor



ATC Code: A02B C05



Esomeprazole is the S-isomer of omeprazole and reduces gastric acid secretion through a specific targeted mechanism of action. It is a specific inhibitor of the acid pump in the parietal cell. Both the R- and S-isomer of omeprazole have similar pharmacodynamic activity.



Site and mechanism of action



Esomeprazole is a weak base and is concentrated and converted to the active form in the highly acidic environment of the secretory canaliculi of the parietal cell, where it inhibits the enzyme H+K+-ATPase – the acid pump and inhibits both basal and stimulated acid secretion.



Effect on gastric acid secretion



After oral dosing with esomeprazole 20 mg and 40 mg the onset of effect occurs within one hour. After repeated administration with 20 mg esomeprazole once daily for five days, mean peak acid output after pentagastrin stimulation is decreased 90% when measured 6–7 hours after dosing on day five.



After five days of oral dosing with 20 mg and 40 mg of esomeprazole, intragastric pH above 4 was maintained for a mean time of 13 hours and 17 hours, respectively over 24 hours in symptomatic GORD patients. The proportion of patients maintaining an intragastric pH above 4 for at least 8, 12 and 16 hours respectively were for esomeprazole 20 mg 76%, 54% and 24%. Corresponding proportions for esomeprazole 40 mg were 97%, 92% and 56%.



Using AUC as a surrogate parameter for plasma concentration, a relationship between inhibition of acid secretion and exposure has been shown.



Therapeutic effects of acid inhibition



Healing of reflux oesophagitis with esomeprazole 40 mg occurs in approximately 78% of patients after four weeks, and in 93% after eight weeks.



One weeks treatment with esomeprazole 20 mg b.i.d. and appropriate antibiotics, results in successful eradication of H. pylori in approximately 90% of patients.



After eradication treatment for one week, there is no need for subsequent monotherapy with antisecretory drugs for effective ulcer healing and symptom resolution in uncomplicated duodenal ulcers.



In a randomised, double blind, placebo-controlled clinical study, patients with endoscopically confirmed peptic ulcer bleeding characterised as Forrest Ia, Ib, IIa or IIb (9%, 43%, 38% and 10% respectively) were randomised to receive Nexium solution for infusion (n=375) or placebo (n=389). Following endoscopic haemostasis, patients received either 80 mg esomeprazole as an intravenous infusion over 30 minutes followed by a continuous infusion of 8 mg per hour or placebo for 72 hours. After the initial 72 hour period, all patients received open label 40 mg oral Nexium for 27 days for acid suppression. The occurrence of rebleeding within 3 days was 5.9% in the Nexium treated group compared to 10.3% for the placebo group. At 30 days post-treatment, the occurrence of rebleeding in the Nexium treated versus the placebo treated group was 7.7% vs 13.6%.



Other effects related to acid inhibition



During treatment with antisecretory drugs, serum gastrin increases in response to the decreased acid secretion. Chromogranin A (CgA) also increases due to decreased gastric acidity.



An increased number of ECL cells possibly related to the increased serum gastrin levels, have been observed in some patients during long-term treatment with esomeprazole.



During long-term treatment with antisecretory drugs, gastric glandular cysts have been reported to occur at a somewhat increased frequency. These changes are a physiological consequence of pronounced inhibition of acid secretion, are benign and appear to be reversible.



Decreased gastric acidity due to any means including proton pump inhibitors, increases gastric counts of bacteria normally present in the gastrointestinal tract. Treatment with proton pump inhibitors may lead to slightly increased risk of gastrointestinal infections such as Salmonella and Campylobacter.



In two studies with ranitidine as an active comparator, Nexium showed better effect in healing of gastric ulcers in patients using NSAIDs, including COX-2 selective NSAIDs.



In two studies with placebo as comparator, Nexium showed better effect in the prevention of gastric and duodenal ulcers in patients using NSAIDs (aged >60 and/or with previous ulcer), including COX-2 selective NSAIDs.



5.2 Pharmacokinetic Properties



Absorption and distribution



Esomeprazole is acid labile and is administered orally as enteric-coated granules. In vivo conversion to the R-isomer is negligible. Absorption of esomeprazole is rapid, with peak plasma levels occurring approximately 1-2 hours after dose. The absolute bioavailability is 64% after a single dose of 40 mg and increases to 89% after repeated once daily administration. For 20 mg esomeprazole the corresponding values are 50% and 68%, respectively. The apparent volume of distribution at steady state in healthy subjects is approximately 0.22 L/kg body weight. Esomeprazole is 97% plasma protein bound.



Food intake both delays and decreases the absorption of esomeprazole although this has no significant influence on the effect of esomeprazole on intragastric acidity.



Metabolism and excretion



Esomeprazole is completely metabolised by the cytochrome P450 system (CYP). The major part of the metabolism of esomeprazole is dependent on the polymorphic CYP2C19, responsible for the formation of the hydroxy- and desmethyl metabolites of esomeprazole. The remaining part is dependent on another specific isoform, CYP3A4, responsible for the formation of esomeprazole sulphone, the main metabolite in plasma.



The parameters below reflect mainly the pharmacokinetics in individuals with a functional CYP2C19 enzyme, extensive metabolisers.



Total plasma clearance is about 17 L/h after a single dose and about 9 L/h after repeated administration. The plasma elimination half-life is about 1.3 hours after repeated once daily dosing. The pharmacokinetics of esomeprazole has been studied in doses up to 40 mg b.i.d. The area under the plasma concentration-time curve increases with repeated administration of esomeprazole. This increase is dose-dependent and results in a more than dose proportional increase in AUC after repeated administration. This time-and dose-dependency is due to a decrease of first pass metabolism and systemic clearance probably caused by an inhibition of the CYP2C19 enzyme by esomeprazole and/or its sulphone metabolite. Esomeprazole is completely eliminated from plasma between doses with no tendency for accumulation during once daily administration.



The major metabolites of esomeprazole have no effect on gastric acid secretion. Almost 80% of an oral dose of esomeprazole is excreted as metabolites in the urine, the remainder in the faeces. Less than 1% of the parent drug is found in urine.



Special patient populations



Approximately 2.9 ±1.5% of the population lack a functional CYP2C19 enzyme and are called poor metabolisers. In these individuals, the metabolism of esomeprazole is probably mainly catalysed by CYP3A4. After repeated once daily administration of 40 mg esomeprazole, the mean area under the plasma concentration-time curve was approximately 100% higher in poor metabolisers than in subjects having a functional CYP2C19 enzyme (extensive metabolisers). Mean peak plasma concentrations were increased by about 60%. These findings have no implications for the posology of esomeprazole.



The metabolism of esomeprazole is not significantly changed in elderly subjects (71-80 years of age).



Following a single dose of 40 mg esomeprazole the mean area under the plasma concentration-time curve is approximately 30% higher in females than in males. No gender difference is seen after repeated once daily administration. These findings have no implications for the posology of esomeprazole.



Impaired organ function



The metabolism of esomeprazole in patients with mild to moderate liver dysfunction may be impaired. The metabolic rate is decreased in patients with severe liver dysfunction resulting in a doubling of the area under the plasma concentration-time curve of esomeprazole. Therefore, a maximum of 20 mg should not be exceeded in patients with severe dysfunction. Esomeprazole or its major metabolites do not show any tendency to accumulate with once daily dosing.



No studies have been performed in patients with decreased renal function. Since the kidney is responsible for the excretion of the metabolites of esomeprazole but not for the elimination of the parent compound, the metabolism of esomeprazole is not expected to be changed in patients with impaired renal function.



Paediatric



Adolescents 12-18 years:



Following repeated dose administration of 20 mg and 40 mg esomeprazole, the total exposure (AUC) and the time to reach maximum plasma drug concentration (tmax) in 12 to 18 year-olds was similar to that in adults for both esomeprazole doses.



5.3 Preclinical Safety Data



Preclinical bridging studies reveal no particular hazard for humans based on conventional studies of repeated dose toxicity, genotoxicity, and toxicity to reproduction. Carcinogenicity studies in the rat with the racemic mixture have shown gastric ECL-cell hyperplasia and carcinoids. These gastric effects in the rat are the result of sustained, pronounced hypergastrinaemia secondary to reduced production of gastric acid and are observed after long-term treatment in the rat with inhibitors of gastric acid secretion.



6. Pharmaceutical Particulars



6.1 List Of Excipients



Glycerol monostearate 40-55



hyprolose



hypromellose



iron oxide (20 mg & 40 mg tablets: reddish-brown; 20 mg tablets: yellow) (E 172)



magnesium stearate



methacrylic acid ethyl acrylate copolymer (1:1) dispersion 30 per cent



cellulose microcrystalline



synthetic paraffin



macrogol,



polysorbate 80



crospovidone



sodium stearyl fumarate



sugar spheres (sucrose and maize starch)



talc



titanium dioxide (E 171)



triethyl citrate



6.2 Incompatibilities



Not applicable.



6.3 Shelf Life



3 years.



2 years in climate zones III-IV.



6.4 Special Precautions For Storage



Do not store above 30°C.



Keep the container tightly closed (bottle) in order to protect from moisture. Store in the original package (blister) in order to protect from moisture.



6.5 Nature And Contents Of Container



– Polyethylene bottle with a tamper proof, polypropylene screw cap equipped with a desiccant capsule.



– Aluminium blister package.



20 mg, 40 mg: Bottles of 2, 5, 7, 14, 15, 28, 30, 56, 60, 100, 140 (5x28) tablets.



20 mg, 40 mg: Blister packs in wallet and/or carton of 3, 7, 7x1, 14, 15, 25x1, 28, 30, 50x1, 56, 60, 90, 98, 100x1, 140 tablets.



6.6 Special Precautions For Disposal And Other Handling



Administration through gastric tube



1. Put the tablet into an appropriate syringe and fill the syringe with approximately 25 mL water and approximately 5 mL air. For some tubes, dispersion in 50 mL water is needed to prevent the pellets from clogging the tube.



2. Immediately shake the syringe for approximately 2 minutes to disperse the tablet.



3. Hold the syringe with the tip up and check that the tip has not clogged.



4. Attach the syringe to the tube whilst maintaining the above position.



5. Shake the syringe and position it with the tip pointing down. Immediately inject 5–10 mL into the tube. Invert the syringe after injection and shake (the syringe must be held with the tip pointing up to avoid clogging of the tip).



6. Turn the syringe with the tip down and immediately inject another 5–10 mL into the tube. Repeat this procedure until the syringe is empty.



7. Fill the syringe with 25 mL of water and 5 mL of air and repeat step 5 if necessary to wash down any sediment left in the syringe. For some tubes, 50 mL water is needed.



7. Marketing Authorisation Holder



AstraZeneca UK Limited,



600 Capability Green,



Luton, LU1 3LU, UK.



8. Marketing Authorisation Number(S)



PL 17901/0069



9. Date Of First Authorisation/Renewal Of The Authorisation



Date of first authorisation: 10 March 2005



Date of latest renewal: 10 March 2010



10. Date Of Revision Of The Text



30 September 2011