Fondaparinux), Lovenox® (Enoxaparin), Fragmin® (Dalteparin

Total Page:16

File Type:pdf, Size:1020Kb

Fondaparinux), Lovenox® (Enoxaparin), Fragmin® (Dalteparin UnitedHealthcare® Value & Balance Exchange Medical Benefit Drug Policy Injectable Anticoagulants Arixtra® (Fondaparinux), ® ® Lovenox (Enoxaparin), Fragmin (Dalteparin) Policy Number: IEXD0210.01 Effective Date: January 1, 2021 Instructions for Use Table of Contents Page Related Policies Applicable States ........................................................................... 1 None Coverage Rationale ....................................................................... 1 Applicable Codes .......................................................................... 2 Background ................................................................................... 3 Clinical Evidence ........................................................................... 4 U.S. Food and Drug Administration ............................................. 4 Centers for Medicare and Medicaid Services ............................. 4 References ..................................................................................... 5 Policy History/Revision Information ............................................. 5 Instructions for Use ....................................................................... 5 Applicable States This Medical Benefit Drug Policy only applies to the states of Arizona, Maryland, North Carolina, Oklahoma, Tennessee, Virginia, and Washington. Coverage Rationale This policy refers to the following Injectable Anticoagulants: Arixtra® (fondaparinux) Lovenox® (enoxaparin) Fragmin® (dalteparin) Fondaparinux is proven and medically necessary when all of the following criteria are met: Used for at least one of the following: o Treatment of deep venous thrombosis (DVT) o Prophylaxis of deep venous thrombosis (DVT) o Treatment of acute pulmonary embolism (PE) o Prophylaxis of pulmonary embolism (PE) and Patient does not have any of the following: o Severe renal impairment (CrCl <30ml/min) o Active major bleeding o Bacterial endocarditis o Thrombocytopenia associated with a positive in vitro test for anti-platelet antibody in the presence of fondaparinux sodium Injectable Anticoagulants Arixtra® (Fondaparinux), Lovenox® (Enoxaparin), Fragmin® (Dalteparin) Page 1 of 5 UnitedHealthcare Value & Balance Exchange Medical Benefit Drug Policy Effective 01/01/2021 Proprietary Information of UnitedHealthcare. Copyright 2021 United HealthCare Services, Inc. o Body weight <50 kg (venous thromboembolism prophylaxis only) o Planned or recent neuraxial anesthesia or spinal puncture and Medication is dosed in accordance with the United States Food and Drug Administration (FDA) approved labeling: dose does not exceed 10mg subcutaneously daily and Authorization is for no more than 12 months Enoxaparin is proven and medically necessary when all of the following criteria are met: Used for at least one of the following: o Treatment of deep venous thrombosis (DVT) o Prophylaxis of deep venous thrombosis (DVT) o Treatment of acute pulmonary embolism (PE) o Prophylaxis of pulmonary embolism (PE) o Prophylaxis of ischemic complications of unstable angina and non–Q-wave myocardial infarction (MI) o Treatment of acute ST-segment elevation myocardial infarction (STEMI) and Patient does not have any of the following: o Active major bleeding o History of heparin-induced thrombocytopenia (HIT) within the past 100 days or in the presence of circulating antibodies o Planned or recent neuraxial anesthesia or spinal puncture o Prior hypersensitivity to heparin or pork products and Medication is dosed in accordance with the United States Food and Drug Administration (FDA) approved labeling and is adjusted based on the indication for use, patient’s weight, and renal function and Authorization is for no more than 12 months Fragmin is proven and medically necessary when all of the following criteria are met: Used for at least one of the following: o Prophylaxis of deep venous thrombosis (DVT) o Extended treatment of symptomatic venous thromboembolism (VTE) to reduce the recurrence in adult patients with cancer o Treatment of symptomatic venous thromboembolism (VTE) to reduce the recurrence in pediatric patients 1 month of age and older o Prophylaxis of ischemic complications of unstable angina and non–Q-wave myocardial infarction (MI) and Patient does not have any of the following: o Active major bleeding o History of heparin induced thrombocytopenia or heparin induced thrombocytopenia with thrombosis o Planned or recent neuraxial anesthesia or spinal puncture o Prior hypersensitivity to heparin or pork products and Medication is dosed in accordance with the United States Food and Drug Administration (FDA) approved labeling and is adjusted based on the indication for use, patient’s weight, and renal function and Authorization is for no more than 12 months Applicable Codes The following list(s) of procedure and/or diagnosis codes is provided for reference purposes only and may not be all inclusive. Listing of a code in this policy does not imply that the service described by the code is a covered or non-covered health service. Benefit coverage for health services is determined by the member specific benefit plan document and applicable laws that may Injectable Anticoagulants Arixtra® (Fondaparinux), Lovenox® (Enoxaparin), Fragmin® (Dalteparin) Page 2 of 5 UnitedHealthcare Value & Balance Exchange Medical Benefit Drug Policy Effective 01/01/2021 Proprietary Information of UnitedHealthcare. Copyright 2021 United HealthCare Services, Inc. require coverage for a specific service. The inclusion of a code does not imply any right to reimbursement or guarantee claim payment. Other Policies and Guidelines may apply. HCPCS Code Description J1650 Injection, enoxaparin sodium, 10 mg J1652 Injection, fondaparinux sodium, 0.5 mg J1645 Injection, dalteparin sodium, per 2500 iU Diagnosis Code Description I21.0 ST elevation (STEMI) myocardial infarction of anterior wall I21.1 ST elevation (STEMI) myocardial infarction of inferior wall I21.2 ST elevation (STEMI) myocardial infarction of other sites I21.3 ST elevation (STEMI) myocardial infarction of unspecified site I22.0 Subsequent ST elevation (STEMI) myocardial infarction of anterior wall I22.1 Subsequent ST elevation (STEMI) myocardial infarction of inferior wall I22.8 Subsequent ST elevation (STEMI) myocardial infarction of other sites I22.9 Subsequent ST elevation (STEMI) myocardial infarction of unspecified site I24.0 Acute coronary thrombosis not resulting in myocardial infarction I24.9 Acute ischemic heart disease, unspecified I26.0 Pulmonary embolism with acute cor pulmonale I26.9 Pulmonary embolism without acute cor pulmonale I82.0 Budd-Chiari syndrome I82.1 Thrombophlebitis migrans I82.2 Embolism and thrombosis of vena cava and other thoracic veins I82.3 Embolism and thrombosis of renal vein I82.4 Acute embolism and thrombosis of deep veins of lower extremity I82.5 Chronic embolism and thrombosis of deep veins of lower extremity I82.6 Acute embolism and thrombosis of veins of upper extremity I82.7 Chronic embolism and thrombosis of veins of upper extremity I82.8 Embolism and thrombosis of other specified veins I82.9 Embolism and thrombosis of unspecified vein I82.A Embolism and thrombosis of axillary vein I82.B Embolism and thrombosis of subclavian vein I82.C Embolism and thrombosis of internal jugular vein O88.21 Thromboembolism in pregnancy O88.81 Other embolism in pregnancy O88.82 Other embolism in childbirth T82.86 Thrombosis of cardiac and vascular prosthetic devices, implants and grafts Background Low Molecular Weight Heparins (LMWH) Summary5 Compared to unfractionated heparin, low molecular weight heparins (LMWHs) produce a more predictable anticoagulant response, reflecting their better bioavailability, longer half-life, and dose-independent clearance. Injectable Anticoagulants Arixtra® (Fondaparinux), Lovenox® (Enoxaparin), Fragmin® (Dalteparin) Page 3 of 5 UnitedHealthcare Value & Balance Exchange Medical Benefit Drug Policy Effective 01/01/2021 Proprietary Information of UnitedHealthcare. Copyright 2021 United HealthCare Services, Inc. LMWHs can be administered by subcutaneous (SC) injection and usually do not require laboratory monitoring, making them more convenient for outpatient treatment compared to unfractionated heparin. LMWHs have different approved indications. Enoxaparin is the only LMWH that is approved for both venous thromboembolism (VTE) prophylaxis and treatment. Enoxaparin and dalteparin are the only LMWHs approved for the prevention of ischemic complications in patients with unstable angina and non-q-wave myocardial infarction; however, enoxaparin is the only LMWH approved for acute ST- segment elevation myocardial infarction (STEMI). Pharmacology5 LMWHs exert their antithrombotic activity by binding to and accelerating the activity of antithrombin III. By activating antithrombin III, coagulation factor Xa and factor IIa (thrombin) are inhibited. The resultant thrombin inhibition prevents the formation of fibrin clots. At recommended doses, LMWHs have a weaker effect on platelet activation and are associated with a lower incidence of heparin-induced thrombocytopenia compared to unfractionated heparin. Enoxaparin and dalteparin have no effect on prothrombin time or activated partial thromboplastin time (aPTT). Neither aPTT nor prothrombin time can be used for therapeutic monitoring of any of the LMWHs. Anti-Xa activity is used as a biomarker for treatment; however, routine monitoring is generally not recommended. Clearance of LMWH is primarily renal. For this reason, the biologic half-life
Recommended publications
  • Safety of Venous Thromboembolism Prophylaxis with Fondaparinux in Ischemic Stroke☆
    Thrombosis Research 135 (2015) 249–254 Contents lists available at ScienceDirect Thrombosis Research journal homepage: www.elsevier.com/locate/thromres Regular Article Safety of venous thromboembolism prophylaxis with fondaparinux in ischemic stroke☆ C.T. Hackett a,d,1, R.S. Ramanathan a,1, K. Malhotra a,M.R.Quigleyb,c,K.M.Kellya,c,M.Tiana,J.Protetcha, C. Wong a,c,D.G.Wrighta,c,A.H.Tayala,c,⁎ a Department of Neurology and Allegheny General Hospital Comprehensive Stroke Center, University of South Carolina b Department of Neurosurgery and Allegheny General Hospital, University of South Carolina c Drexel University College of Medicine, University of South Carolina d Department of Psychology, University of South Carolina article info abstract Article history: Introduction: Unfractionated heparin (UFH), low molecular weight heparin or fondaparinux are recommended Received 19 June 2014 for venous thromboembolism (VTE) prophylaxis in acutely ill medical patients. There are limited data on the Received in revised form 11 September 2014 safety of fondaparinux for VTE prophylaxis in ischemic stroke. We examined adverse event frequency in Accepted 4 November 2014 hospitalized patients with ischemic stroke who received VTE prophylaxis with fondaparinux versus UFH. Available online 13 December 2014 Materials and Methods: We performed a propensity score matched analysis on a retrospective cohort of 644 consecutive patients with acute ischemic stroke receiving fondaparinux (n = 322) or UFH (n = 322) for VTE prophylaxis. Patients who received intravenous tPA and continuous intravenous infusions of UFH were excluded. The primary outcome was major hemorrhage (intracranial or extracranial) and the secondary outcome was total hemorrhage (major and minor hemorrhage) during hospitalization.
    [Show full text]
  • Thromboprophylaxis for Venous Thromboembolism UHL Guideline
    Guidelines for Pharmacological and Mechanical Thromboprophylaxis for venous thromboembolism. Approved By: Policy and Guideline Committee Date Approved: 12 February 2016 Trust Reference: B9/2016 Version: V4 – 16 August 2019 Policy and Guideline Committee Supersedes: V3 February 2016 Author / Originator(s): Simon Rudge, Venous Thrombosis Nurse Name of Responsible Thrombosis Prevention Committee Committee/Individual: Review Date: August 2022 CONTENTS Section Page 1. Introduction 3 2. Policy Scope 5 VTE Risk Assessment and Pharmacological and Mechanical venous 3. 6 thromboprophylaxis 4. Patient information 8 5. Mechanical thromboprophylaxis. Application and management guide 9 6. Nursing care 12 7. References 12 8. Legal Liability Guideline Statement 12 Appendix 1 Derogation from NICE NG89: VTE risk assessment of 16 & 17yr olds 13 Appendix 2a/2a1/2b/2c VTE risk assessment tools 14-18 Appendix 3 NICE CG92 algorithm for VTE thromboprophylaxis in medical patients 19 Appendix 4 Consensus of risk factors for VTE in surgical patients 20 Appendix 5 UHL and East Midlands approved List of cohort Day Case procedures 21 Appendix 6 Thromboprophylaxis administration guide: Dalteparin 22 Appendix 7 Derogation from NICE NG89: minimum of 7 days low molecular weight 23 heparin for acutely unwell medical patients Appendix 8 Indications for mechanical thromboprophylaxis algorithm 24 Appendix 8a Indications for mechanical thromboprophylaxis with intermittent 25 pneumatic compression devices algorithm Appendix 9 Quick reference guide of NICE NG89 26 Summary of key changes: Addition of procedure specific recommendations from NG89. Inclusion of discharge recommendations. Inclusion of statement regarding medicines of animal origin. Inclusion of training requirements Inclusion of statements of derogation from NG89 Addition of quick reference guide of NG89.
    [Show full text]
  • Hemosil ® Liquid Anti-Xa
    H E M O S I L® LIQUID ANTI-XA Measuring heparin and apixaban: Simple, fast, 24/7 • Liquid formulation, ready-to-use • One-stage, chromogenic anti-Xa assay • Universal calibration for unfractionated heparin (UFH) and low molecular weight heparin (LMWH) • Drug specific calibrators and controls for measurement of apixaban Measuring heparin and apixaban Unfractionated and low molecular weight heparin Heparin is a highly sulfated polysaccharide Laboratory monitoring is extremely important to characterized by a wide molecular weight range and assess the appropriate level of anticoagulation in potent anticoagulant activity. It exists either as UFH patients receiving UFH. Anti-Xa is recommended for or as depolymerized LMWH. UFH and LMWH have measuring both UFH and LMWH. a rapid anticoagulant effect and are used in the prevention and treatment of venous thrombosis and Anti-Xa testing for measuring UFH helps improve acute coronary syndrome. quality of care and patient experience while reducing costs, when compared with APTT testing.1 UFH and LMWH anticoagulant activity occurs when The advantages include: a complex with antithrombin (AT) is formed, • Higher precision potentiating its anticoagulant activity up to • Lower levels of discordant results1,2,4 1,000-fold, which inactivates both thrombin (FIIa) • Faster time to achieve therapeutic levels1,3,4 and Factor Xa (FXa). UFH acts through both FIIa 1,3,4,5 and FXa inhibition, while LMWH is a more efficient • Fewer tests and dosage changes catalyst for FXa inhibition. Direct Xa inhibitors Anticoagulation for patients with venous DOACs do not require routine monitoring. However, thromboembolism (VTE) previously included there are specific instances when an understanding heparin, heparin derivatives and/or oral vitamin K of the DOAC concentration in a patient sample may antagonists.
    [Show full text]
  • The Management of Anticoagulants Using the Chart: – Low Molecular Weight Heparins (I.E
    WA Adult Anticoagulation Medication Chart Overview This presentation will provide an overview of: • The layout of the WA Anticoagulation Medication Chart (WA AMC) • The management of anticoagulants using the chart: – Low Molecular Weight Heparins (i.e. enoxaparin) – Unfractionated heparin (UFH) – Warfarin – Direct oral anticoagulants (DOACs) Anticoagulants – High Risk Medications • Anticoagulants are consistently identified as causing preventable harm to patients. • Top 20 medications involved in medication errors (July 2016 - June 2017) 1. Paracetamol 11. Buprenorphine 2. Enoxaparin 12. Targin (Oxycodone / naloxone) 3. Novorapid Insulin 13. Warfarin 4. Tramadol 14. Diazepam 5. Heparin 15. Tapentadol 6. Fentanyl 16. Metformin 7. Piperacillin & Tazobactam 17. Clonazepam 8. Oxycodone 18. Frusemide 9. Lantus Insulin 19. Hydromorphone 10. Vancomycin 20. Quetiapine • When used in error or omitted, they can cause life-threatening or fatal bleeding or thrombosis. Those most commonly prescribed anticoagulants are: –unfractionated heparin –low-molecular weight heparin (LMWH) • enoxaparin sodium (Clexane®) • dalteparin sodium (Fragmin®) and – warfarin. Direct oral anticoagulants are also available and are being prescribed more frequently: –dabigatran (Pradaxa®) –rivaroxaban (Xarelto®) –apixaban (Eliquis®). Factors that increase the potential for error and harm include: • Low margin for error – over-dose → bleeding – under-dose or omission → thrombosis • Wide variation in individual patient response – multiple indications – wide range and complexity of dosage – frequent dose adjustment/monitoring – interaction with other medicines, herbals, over-the-counter products, food and alcohol. Benefits of the WA Anticoagulant Medication Chart • Provides one chart for all anticoagulant prescriptions to reduce the risk of duplicate prescribing. • Point of care guidelines for initiation, monitoring and reversal of anticoagulants. • Enables the effective achievement of therapeutic levels.
    [Show full text]
  • Product Monograph
    PRODUCT MONOGRAPH PrFONDAPARINUX SODIUM INJECTION 2.5 mg/0.5 mL , 5.0 mg/0.4 mL, 7.5 mg/0.6 mL, and 10.0 mg/0.8 mL Sterile 2.5 mg/0.5 mL (5 mg/mL) 5.0 mg/0.4 mL (12.5 mg/mL) 7.5 mg/0.6 mL (12.5 mg/mL) 10.0 mg/0.8 mL (12.5 mg/mL) Synthetic Antithrombotic DIN Owner: Date of Preparation: Dr. Reddy’s Laboratories Limited July 20, 2012 Bachupally – 500 090 INDIA Date of Revision: November 3, 2014 Canadian Importer/Distributor: Innomar Strategies Inc. 3470 Superior Court- Oakville, Ontario L6L 0C4 CANADA Submission Control Number: 174569 1 Table of Contents PART I: HEALTH PROFESSIONAL INFORMATION .........................................................3 SUMMARY PRODUCT INFORMATION........................................................................3 INDICATIONS AND CLINICAL USE..............................................................................3 CONTRAINDICATIONS...................................................................................................4 WARNINGS AND PRECAUTIONS..................................................................................4 ADVERSE REACTIONS....................................................................................................9 DRUG INTERACTIONS..................................................................................................22 DOSAGE AND ADMINISTRATION..............................................................................23 OVERDOSAGE................................................................................................................27
    [Show full text]
  • Dalteparin Sodium Injection) in Children with Venous Thromboembolism with Or Without Malignancies
    FRAG-A001-201 (A6301094) Final Protocol Amendment 9, 18 October 2016 CLINICAL STUDY PROTOCOL A THREE MONTH PROSPECTIVE OPEN LABEL STUDY OF THERAPY WITH FRAGMIN® (DALTEPARIN SODIUM INJECTION) IN CHILDREN WITH VENOUS THROMBOEMBOLISM WITH OR WITHOUT MALIGNANCIES Compound: PN180524 Compound Name : Dalteparin Sodium Injection (Fragmin®) United States (US) Investigational New IND 79,617 Drug (IND) Number: European Clinical Trials Database 2016-000394-21 (EudraCT) #: Protocol Number: FRAG-A001-201 (A6301094) Phase: II Version #: Amendment 9 – 18 October 2016 Pfizer Inc 235 East 42nd Street New York, NY 10017 - Do Not Distribute Page 1 FRAG-A001-201 (A6301094) Final Protocol Amendment 9, 18 October 2016 Document History This amendment incorporates all revisions to date, including amendments made at the request of country health authorities, institutional review boards/ethics committees (IRBs/ECs), etc. Document Date Summary of Changes and Rationale Original Protocol June 23, 2008 Legacy Eisai Inc Protocol Protocol Amendment 1 September 04, 2008 Legacy Eisai Inc Protocol Correction to Amendment 1 January 05, 2009 Legacy Eisai Inc Protocol Protocol Amendment 2 February 20, 2009 Legacy Eisai Inc Protocol Protocol Amendment 3 September 15, 2010 Legacy Eisai Inc Protocol Protocol Amendment 4 September 01, 2011 Legacy Eisai Inc Protocol Protocol Amendment 5 April 21, 2015 Administrative changes per transition of study to Pfizer Inc from Eisai; Updating of Safety Section per Pfizer safety reporting processes and procedures, and other relevant sections per Pfizer Inc processes and procedures. Protocol Amendment 6 09 September 2015 This version was never finalized or submitted and was replaced by Amendment 7. Protocol Amendment 7 18 November 2015 Includes protocol modifications endorsed by FDA in a Type C Meeting conducted on 05 November 2015, including updating age cohort groups, inclusion of all patients with VTE and removal of the central imaging reader and Adjudication Committee.
    [Show full text]
  • ALTEPLASE: Class: Thrombolytic Agent (Fibrinolytic Agent
    ALTEPLASE: Class: Thrombolytic Agent (Fibrinolytic Agent ). Indications: - Management of acute myocardial infarction for the lysis of thrombi in coronary arteries; management of acute ischemic stroke -Acute myocardial infarction (AMI): Chest pain ≥20 minutes, ≤12-24 hours; S-T elevation ≥0.1 mV in at least two ECG leads -Acute pulmonary embolism (APE): Age ≤75 years: Documented massive pulmonary embolism by pulmonary angiography or echocardiography or high probability lung scan with clinical shock . -Restoration of central venous catheter function *Unlabeled/Investigational :Acute peripheral arterial occlusive disease. Dosage: -Coronary artery thrombi: Front loading dose (weight-based): -Patients >67 kg: Total dose: 100 mg over 1.5 hours; infuse 15 mg over 1-2 minutes. Infuse 50 mg over 30 minutes. Infuse remaining 35 mg of alteplase over the next hour. Maximum total dose: 100 mg -Patients ≤67 kg: Infuse 15 mg I.V. bolus over 1-2 minutes, then infuse 0.75 mg/kg (not to exceed 50 mg) over next 30 minutes, followed by 0.5 mg/kg over next 60 minutes (not to exceed 35 mg) Maximum total dose: 100 mg. See “Notes.” Note: Concurrently, begin heparin 60 units/kg bolus (maximum: 4000 units) followed by continuous infusion of 12 units/kg/hour (maximum: 1000 units/hour) and adjust to aPTT target of 1.5-2 times the upper limit of control. Note: Thrombolytic should be administered within 30 minutes of hospital arrival. Administer concurrent aspirin, clopidogrel, and anticoagulant therapy (ie, unfractionated heparin, enoxaparin, or fondaparinux) with alteplase (O’Gara, 2013). -Acute massive or submassive pulmonary embolism: I.V. (Activase®): 100 mg over 2 hours; may be administered as a 10 mg bolus followed by 90 mg over 2 hours as was done in patients with submassive PE (Konstantinides, 2002).
    [Show full text]
  • Perioperative Management of Patients Treated with Antithrombotics in Oral Surgery
    SFCO/Perioperative management of patients treated with antithrombotic agents in oral surgery/Rationale/July 2015 SOCIÉTÉ FRANÇAISE DE CHIRURGIE ORALE [FRENCH SOCIETY OF ORAL SURGERY] IN COLLABORATION WITH THE SOCIÉTÉ FRANÇAISE DE CARDIOLOGIE [FRENCH SOCIETY OF CARDIOLOGY] AND THE PERIOPERATIVE HEMOSTASIS INTEREST GROUP Space Perioperative management of patients treated with antithrombotics in oral surgery. RATIONALE July 2015 P a g e 1 | 107 SFCO/Perioperative management of patients treated with antithrombotic agents in oral surgery/Rationale/July 2015 Abbreviations ACS Acute coronary syndrome(s) ADP Adenosine diphosphate Afib Atrial Fibrillation AHT Arterial hypertension Anaes Agence nationale d’accréditation et d’évaluation en santé [National Agency for Accreditation and Health Care Evaluation] APA Antiplatelet agent(s) aPTT Activated partial thromboplastin time ASA Aspirin BDMP Blood derived medicinal products BMI Body mass index BT Bleeding Time cAMP Cyclic adenosine monophosphate COX-1 Cyclooxygenase 1 CVA Cerebral vascular accident DIC Disseminated intravascular coagulation DOA Direct oral anticoagulant(s) DVT Deep vein thrombosis GEHT Study Group on Hemostasis and Thrombosis (groupe d’étude sur l’hémostase et la thrombose) GIHP Hemostasis and Thrombosis Interest Group (groupe d’intérêt sur l’hémostase et la thrombose) HAS Haute autorité de santé [French Authority for Health] HIT Heparin-induced thrombocytopenia IANB Inferior alveolar nerve block INR International normalized ratio IV Intravenous LMWH Low-molecular-weight heparin(s)
    [Show full text]
  • LOW MOLECULAR WEIGHT HEPARIN and FONDAPARINUX Zachary Stacy and Sara K
    4 Chapter LOW MOLECULAR WEIGHT HEPARIN AND FONDAPARINUX Zachary Stacy and Sara K. Richter INTRODUCTION The low molecular weight heparins (LMWHs) and the synthetic pentasaccharide, fondaparinux, offer several advantages over unfractionated heparin (UFH). Enoxa- parin and dalteparin were approved in the United States in 1993 and 1994, respec- tively, followed by fondaparinux in 2001. Tinzaparin was approved and available in 2000, but was subsequently withdrawn from the market in 2011. These injectables have been traditionally used as prophylaxis for venous thromboembolism or as a bridge therapy to therapeutic oral anticoagulation. Based on their relative ease of dosing and monitoring, these agents frequently replace UFH in many clinical situations. This chapter will focus on those agents currently available in the United States, including enoxaparin, dalteparin, and fondaparinux. PHARMACOLOGY AND PHARMACOKINETICS1-9 Traditionally, unfractionated heparin was the parenteral anticoagulant used in the inpatient setting. Active unfractionated heparin compounds are composed of an inconsistent number of sugars, each ending in a specific pentasaccharide sequence. Using a consistent and shorter sequence of sugars improved the variability in the anticoagulant effect, giving rise to fractioned LMWH products. Mechanism of Action • LMWHs and fondaparinux are indirect inhibitors of clotting factors requiring antithrom- bin to exert an anticoagulant effect (Figure 4-1). • A specific pentasaccharide sequence binds to antithrombin to potentiate its activity. • LMWHs inhibit both Factor Xa and IIa (thrombin) activity. • Fondaparinux selectively inhibits only Factor Xa. • Refer to Tables 4-1 and 4-2 for comparison of the specific clotting factors inhibited. 65 66 Anticoagulation Therapy AT AT AT X a AT Thro mbin UFH AT AT X a AT Thro mbin LMWH Xa AT AT AT Throm bin Fondaparinux FIGURE 4-1.
    [Show full text]
  • Transition of Anticoagulants 2019
    Transition of Anticoagulants 2019 Van Hellerslia, PharmD, BCPS, CACP, Brand Generic Clinical Assistant Professor of Pharmacy Practice, Angiomax bivalirudin Temple University School of Pharmacy, Philadelphia, PA Arixtra fondaparinux Bevyxxa betrixaban Pallav Mehta, MD, Assistant Professor of Medicine, Coumadin warfarin Division of Hematology/Oncology, Eliquis apixaban MD Anderson Cancer Center at Cooper, Camden, NJ Fragmin dalteparin Lovenox enoxaparin Reviewer: Kelly Rudd, PharmD, BCPS, CACP, Pradaxa dabigatran Clinical Specialist, Anticoagulation, Bassett Medical Center, Savaysa edoxaban Cooperstown, NY Xarelto rivaroxaban From To Action Apixaban Argatroban/ Wait 12 hours after last dose of apixaban to initiate parenteral anticoagulant. In cases of Bivalirudin/ high bleeding risk, consider omitting initial bolus when transitioning to heparin infusion. Enoxaparin/ Dalteparin/ Fondaparinux/ Heparin Apixaban Warfarin When going from apixaban to warfarin, consider the use of parenteral anticoagulation as a bridge (eg, start heparin infusion or therapeutic enoxaparin AND warfarin 12 hours after last dose of apixaban and discontinue parenteral anticoagulant when INR is therapeutic). Apixaban affects INR so that initial INR measurements during the transition may not be useful for determining the appropriate dose of warfarin. Apixaban Betrixaban, Wait 12 hours from last dose of apixaban to initiate betrixaban, dabigatran, edoxaban, or Dabigatran, rivaroxaban. Edoxaban, or Rivaroxaban Argatroban Apixaban, Start apixaban, betrixaban, dabigatran,
    [Show full text]
  • Estonian Statistics on Medicines 2016 1/41
    Estonian Statistics on Medicines 2016 ATC code ATC group / Active substance (rout of admin.) Quantity sold Unit DDD Unit DDD/1000/ day A ALIMENTARY TRACT AND METABOLISM 167,8985 A01 STOMATOLOGICAL PREPARATIONS 0,0738 A01A STOMATOLOGICAL PREPARATIONS 0,0738 A01AB Antiinfectives and antiseptics for local oral treatment 0,0738 A01AB09 Miconazole (O) 7088 g 0,2 g 0,0738 A01AB12 Hexetidine (O) 1951200 ml A01AB81 Neomycin+ Benzocaine (dental) 30200 pieces A01AB82 Demeclocycline+ Triamcinolone (dental) 680 g A01AC Corticosteroids for local oral treatment A01AC81 Dexamethasone+ Thymol (dental) 3094 ml A01AD Other agents for local oral treatment A01AD80 Lidocaine+ Cetylpyridinium chloride (gingival) 227150 g A01AD81 Lidocaine+ Cetrimide (O) 30900 g A01AD82 Choline salicylate (O) 864720 pieces A01AD83 Lidocaine+ Chamomille extract (O) 370080 g A01AD90 Lidocaine+ Paraformaldehyde (dental) 405 g A02 DRUGS FOR ACID RELATED DISORDERS 47,1312 A02A ANTACIDS 1,0133 Combinations and complexes of aluminium, calcium and A02AD 1,0133 magnesium compounds A02AD81 Aluminium hydroxide+ Magnesium hydroxide (O) 811120 pieces 10 pieces 0,1689 A02AD81 Aluminium hydroxide+ Magnesium hydroxide (O) 3101974 ml 50 ml 0,1292 A02AD83 Calcium carbonate+ Magnesium carbonate (O) 3434232 pieces 10 pieces 0,7152 DRUGS FOR PEPTIC ULCER AND GASTRO- A02B 46,1179 OESOPHAGEAL REFLUX DISEASE (GORD) A02BA H2-receptor antagonists 2,3855 A02BA02 Ranitidine (O) 340327,5 g 0,3 g 2,3624 A02BA02 Ranitidine (P) 3318,25 g 0,3 g 0,0230 A02BC Proton pump inhibitors 43,7324 A02BC01 Omeprazole
    [Show full text]
  • Antithrombotic Therapy During Pregnancy
    ARC Journal of Pharmaceutical Sciences (AJPS) Volume 1, Issue 2, July – September 2015, PP 16-20 www.arcjournals.org Antithrombotic Therapy During Pregnancy Sihana Ahmeti Lika1*, Bujar H. Durmishi2, Agim Shabani2, Merita Dauti1, Ledjan Malaj3 1 Faculty of Medical Sciences, Department of Pharmacy, State University of Tetova, Ilindeni Str. n.n., 1200 Tetova, R. of Macedonia [email protected] 2 Faculty of Mathematical - Natural Sciencese, Department of Chemistry, State University of Tetova, Ilindeni Str. n.n., 1200 Tetova, R. of Macedonia 3 Faculty of Pharmacy, Medical University of Tirana, of Albania Abstract: Antithrombotic therapy is the main therapy for acute deep vein thrombosis. The objectives of anticoagulant therapy in the initial treatment are to prevent thrombus extension and early and late recurrences of deep vein thrombosis and pulmonary embolism. The main objective of our study is to analyze the usage of low molecular weight heparins in women, during the period of pregnancy. Our study, represents a retrospective study, which was undertaken during 01 July – 31 December 2013, in the Department of Gynecology and Obstetrics, at Clinical Hospital in Tetova. Among of 817 pregnant women, 277 of them received anticoagulant therapy, respectively Low Molecular Weight Heparins. 119 of them were patients with risky pregnancy and 68 were with the diagnosis Hypercoagulable State. Keywords: Antithrombotics, Deep Vein Thrombosis, Pregnancy, Low Molecular Weight Heparins. Abrevations LMWH Low molecular weight heparins VT venous thromboembolism 1. INTRODUCTION There are two main adverse expriences that are associated with thrombophilia and pregnancy. These are VT and pregnancy complications associated with placental infarction, including miscarriage, intrauterine growth restriction, preeclampsia, abruption, and intrauterine death [1].
    [Show full text]