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Pradaxa is a brand name for Dabigatran Etexilate. The medicine, its uses, side effects and dosage are the same regardless of brand.
Used for: Primary prevention of venous thromboembolic events (VTE) in adult patients who have undergone elective total hip replacement surgery or total knee replacement surgery. Treatment of VTE and prevention of recurrent VTE in paediatric patients from the time the child is able to swallow soft food to less than 18 years of…
Verbatim from this product's EMA label. Tap a section to expand.
Posology Pradaxa capsules can be used in adults and paediatric patients aged 8 years or older who are able to swallow the capsules whole. Pradaxa coated granules can be used in children aged less than 12 years as soon as the child is able to swallow soft food.
When changing between the formulations, the prescribed dose may need to be altered. The dose stated in the relevant dosing table of a formulation should be prescribed based on the weight and age of the child. Primary prevention of VTE in orthopaedic surgery The recommended doses of dabigatran etexilate and the duration of therapy for primary prevention of VTE in orthopaedic surgery are shown in table 1.
Table 1:
Dose recommendations and duration of therapy for primary prevention of VTE in 3 orthopaedic surgery Treatment initiation on the day of surgery 1-4 hours after completed surgery Maintenance dose starting on the first day after surgery Duration of maintenance dose Patients following elective knee replacement surgery single capsule of 110 mg dabigatran etexilate 220 mg dabigatran etexilate once daily taken as 2 capsules of 110 mg 10 days Patients following elective hip replacement surgery 28-35 days Dose reduction recommended Patients with moderate renal impairment (creatinine clearance (CrCL 30-50 mL/min) single capsule of 75 mg dabigatran etexilate 150 mg dabigatran etexilate once daily taken as 2 capsules of 75 mg 10 days (knee replacement surgery) or 28-35 days (hip replacement surgery) Patients who receive concomitant verapamil*, amiodarone, quinidine Patients aged 75 or above *For patients with moderate renal impairment concomitantly treated with verapamil see Special populations For both surgeries, if haemostasis is not secured, initiation of treatment should be delayed.
If treatment is not started on the day of surgery then treatment should be initiated with 2 capsules once daily. e. 2). g. hypovolaemia, dehydration, and in case of concomitant use of certain medicinal products). The method to be used to estimate renal function (CrCL in mL/min) is the Cockcroft-Gault method.
Missed dose It is recommended to continue with the remaining daily doses of dabigatran etexilate at the same time of the next day. No double dose should be taken to make up for missed individual doses. Discontinuation of dabigatran etexilate Dabigatran etexilate treatment should not be discontinued without medical advice.
Summary of the safety profile Dabigatran etexilate has been evaluated in clinical trials overall in approximately 64 000 patients; thereof approximately 35 000 patients were treated with dabigatran etexilate. In actively controlled VTE prevention trials 6 684 patients were treated with 150 mg or 220 mg dabigatran etexilate daily.
The most commonly reported events are bleedings occurring in approximately 14 % of patients; the frequency of major bleeds (including wound site bleedings) is less than 2 %. Although rare in frequency in clinical trials, major or severe bleeding may occur and, regardless of location, may lead to disabling, life-threatening or even fatal outcomes.
16 Tabulated list of adverse reactions Table 10 shows the adverse reactions ranked under headings of System Organ Classes (SOC) and frequency using the following convention: very common ( 1/10), common ( 1/100 to < 1/10), uncommon ( 1/1 000 to < 1/100), rare ( 1/10 000 to < 1/1 000), very rare (< 1/10 000), not known (cannot be estimated from the available data).
Table 10:
Adverse reactions SOC / Preferred term Frequency Blood and lymphatic system disorders Haemoglobin decreased Common Anaemia Uncommon Haematocrit decreased Uncommon Thrombocytopenia Rare Neutropenia Not known Agranulocytosis Not known Immune system disorder Drug hypersensitivity Uncommon Anaphylactic reaction Rare Angioedema Rare Urticaria Rare Rash Rare Pruritus Rare Bronchospasm Not known Nervous system disorders Intracranial haemorrhage Rare Vascular disorders Haematoma Uncommon Wound haemorrhage Uncommon Haemorrhage Rare Respiratory, thoracic and mediastinal disorders Epistaxis Uncommon Haemoptysis Rare Gastrointestinal disorders Gastrointestinal haemorrhage Uncommon Rectal haemorrhage Uncommon Haemorrhoidal haemorrhage Uncommon Diarrhoea Uncommon Nausea Uncommon Vomiting Uncommon Gastrointestinal ulcer, including oesophageal ulcer Rare Gastroesophagitis Rare Gastroesophageal reflux disease Rare Abdominal pain Rare Dyspepsia Rare Dysphagia Rare Hepatobiliary disorders Hepatic function abnormal / Liver function Test abnormal Common Alanine aminotransferase increased Uncommon Aspartate aminotransferase increased Uncommon Hepatic enzyme increased Uncommon Hyperbilirubinaemia Uncommon 17 Skin and subcutaneous tissue disorder Skin haemorrhage Uncommon Alopecia Not known Musculoskeletal and connective tissue disorders Haemarthrosis Uncommon Renal and urinary disorders Genitourological haemorrhage, including haematuria Uncommon General disorders and administration site conditions Injection site haemorrhage Rare Catheter site haemorrhage Rare Bloody discharge Rare Injury, poisoning and procedural complications Traumatic haemorrhage Uncommon Post procedural haematoma Uncommon Post procedural haemorrhage Uncommon Post procedural discharge Uncommon Wound secretion Uncommon Incision site haemorrhage Rare Anaemia postoperative Rare Surgical and medical procedures Wound drainage Rare Post procedural drainage Rare Description of selected adverse reactions Bleeding reactions Due to the pharmacological mode of action, the use of dabigatran etexilate may be associated with an increased risk of occult or overt bleeding from any tissue or organ.
Haemorrhagic risk Dabigatran etexilate should be used with caution in conditions with an increased risk of bleeding or with concomitant use of medicinal products affecting haemostasis by inhibition of platelet aggregation. Bleeding can occur at any site during therapy.
An unexplained fall in haemoglobin and/or haematocrit or blood pressure should lead to a search for a bleeding site. For adult patients in situations of life-threatening or uncontrolled bleeding, when rapid reversal of the anticoagulation effect of dabigatran is required, the specific reversal agent idarucizumab is available.
The efficacy and safety of idarucizumab have not been established in paediatric patients. Haemodialysis can remove dabigatran. 9). Use of platelet aggregation inhibitors such as clopidogrel and acetylsalicylic acid (ASA) or non steroidal antiinflammatory drugs (NSAID), as well as the presence of esophagitis, gastritis or gastroesophageal reflux increase the risk of GI bleeding.
Risk factors Table 3 summarises factors which may increase the haemorrhagic risk.
Table 3:
Factors which may increase the haemorrhagic risk. g. 2). 5). 9. 5), which significantly increase the risk of major bleeding requires a careful benefit-risk assessment. Dabigatran etexilate should only be given if the benefit outweighs bleeding risks.
1). In these patients, dabigatran etexilate should only be given if the expected benefit outweighs bleeding risks. Close clinical surveillance Close observation for signs of bleeding or anaemia is recommended throughout the treatment period, especially if risk factors are combined (see table 3 above).
5). 5). 3). When severe bleedings occur, treatment must be discontinued, the source of bleeding investigated and use of the specific reversal agent (idarucizumab) may be considered in adult patients. The efficacy and safety of idarucizumab have not been established in paediatric patients.
73 m2 in paediatric patients • Active clinically significant bleeding • Lesion or condition, if considered a significant risk factor for major bleeding. g. unfractionated heparin (UFH), low molecular weight heparins (enoxaparin, dalteparin etc), heparin derivatives (fondaparinux etc), oral anticoagulants (warfarin, rivaroxaban, apixaban etc) except under specific circumstances.
1). 7
Not medical advice. Always read the patient information leaflet and follow your prescriber or pharmacist.
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8). 5). g. 5). 3). 1). e. 5). In this situation dabigatran etexilate and these medicinal products should be taken at the same time. 5). 1). Weight There is very limited clinical experience in patients with a body weight < 50 kg or > 110 kg at the recommended posology.
4). 2). Paediatric population There is no relevant use of dabigatran etexilate in the paediatric population for the indication of primary prevention of VTE in patients who have undergone elective total hip replacement surgery or total knee replacement surgery.
Treatment of VTE and prevention of recurrent VTE in paediatric patients For the treatment of VTE in paediatric patients, treatment should be initiated following treatment with a parenteral anticoagulant for at least 5 days. For prevention of recurrent VTE, treatment should be initiated following previous treatment.
Dabigatran etexilate capsules should be taken twice daily, one dose in the morning and one dose in the evening, at approximately the same time every day. The dosing interval should be as close to 12 hours as possible. 5 The recommended dose of dabigatran etexilate capsules is based on the patient’s weight and age as shown in table 2.
The dose should be adjusted according to weight and age as treatment progresses. For weight and age combinations not listed in the […]
The signs, symptoms, and severity (including fatal outcome) will vary according to the location and degree or extent of the bleeding and/or anaemia. g. gastrointestinal, genitourinary) were seen more frequently during long term dabigatran etexilate treatment compared with VKA treatment.
Thus, in addition to adequate clinical surveillance, laboratory testing of haemoglobin/haematocrit is of value to detect occult bleeding. g. 4 Haemorrhagic risk). Haemorrhagic complications may present as weakness, paleness, dizziness, headache or unexplained swelling, dyspnoea, and unexplained shock.
Known bleeding complications such as compartment syndrome and acute renal failure due to hypoperfusion and anticoagulant-related nephropathy in patients with predisposing risk factors have been reported for dabigatran etexilate. Therefore, the possibility of haemorrhage is to be considered in evaluating the condition in any anticoagulated patient.
9). The table 11 shows the number (%) of patients experiencing the adverse reaction bleeding during the treatment period in the indication primary VTE prevention after hip or knee replacement surgery in the two pivotal clinical trials, according to dose.
4) Agranulocytosis and neutropenia Agranulocytosis and neutropenia have been reported very rarely during post approval use of dabigatran etexilate. Because adverse reactions are reported in the postmarketing surveillance setting from a population of uncertain size, it is not possible to reliably determine their frequency.
The reporting rate was estimated as 7 events per 1 million patient years for agranulocytosis and as 5 events per 1 million patient years for neutropenia. 108). In total, 328 paediatric patients had been treated with dabigatran etexilate.
The patients received age and weight adjusted doses of an age-appropriate formulation of dabigatran etexilate. Overall, the safety […]
Haemodialysis can remove dabigatran. Use of proton-pump inhibitors The administration of a proton-pump inhibitor (PPI) can be considered to prevent GI bleeding. In case of paediatric patients local labeling recommendations for proton pump inhibitors have to be followed.
Laboratory coagulation parameters Although this medicinal product does not in general require routine anticoagulant monitoring, the measurement of dabigatran related anticoagulation may be helpful to detect excessive high exposure to dabigatran in the presence of additional risk factors.
1). The international normalised ratio (INR) test is unreliable in patients on dabigatran etexilate and false positive INR elevations have been reported. Therefore INR tests should not be performed. Table 4 shows coagulation test thresholds at trough for adult patients that may be associated with an increased risk of bleeding.
1).
Table 4:
Coagulation test thresholds at trough for adult patients that may be associated with 9 an increased risk of bleeding. 3 INR Should not be performed Use of fibrinolytic medicinal products for the treatment of acute ischemic stroke The use of fibrinolytic medicinal products for the treatment of acute ischemic stroke may be considered if the patient presents with a dTT, ECT or aPTT not exceeding the upper limit of normal (ULN) according to the local […]