Abstract
Low molecular weight heparins (LMWHs) are drug substances widely used as anticoagulants after parenteral administration. They are biological substances obtained from mammalian tissues and they are closely related to non-biological complex drugs because of their heterogeneity and their complex characterization. LMWHs are highly sulfated glycosaminoglycans obtained by partial chemical or enzymatic depolymerization of unfractionated heparin, which is prepared usually by purification from porcine mucosa. Their heterogeneity and polydispersity is the result of the biosynthetic route and of the manufacturing process. Regulatory requirements and control methods are in place in Europe and in the United States to guarantee the quality and safety of these products. LMWHs interfere with the coagulation cascade mainly by interacting through a specific pentasaccharide sequence with antithrombin (AT), and accelerating the inhibition of factor Xa and, to a lesser extent, thrombin (factor IIa). Attempts to produce chemically or enzymatically synthesised LMWHs have not succeeded to displace the currently used LMWH of natural origin.
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Abbreviations
- ACS:
-
Acute Coronary Syndromes
- ACT:
-
Activated Clotting Time
- AEMPS:
-
Spanish Agency for Medicines and Medical Devices
- aPTT:
-
Activated Partial Thromboplastin Time
- ASMF:
-
Active Substance Master File
- AT/AT III:
-
Antithrombin/Antithrombin III
- BID:
-
Twice Daily
- CE:
-
Capillary Electrophoresis
- CEP(s):
-
Certificate(s) of Suitability
- CHO:
-
Chinese Hamster Ovary
- CMDh:
-
Coordination Group for Mutual Recognition and Decentralised Procedures, human
- CS:
-
Chondroitin Sulfate
- DS:
-
Dermatan Sulfate
- DVT:
-
Deep Venous Thrombosis
- EDQM:
-
European Directorate for the Quality of Medicines and Health Care
- ELISA:
-
Enzyme-Linked ImmunoSorbent Assay
- EMA:
-
European Medicines Agency
- EMEA:
-
European Agency for the Evaluation of Medicinal Products
- EU:
-
European Union
- FDA:
-
Food and Drugs Administration
- GAG:
-
Glycosaminoglycan
- GMP:
-
Good Manufacturing Practice
- h:
-
hours
- HIT:
-
Heparin Induced Thrombocytopenia
- HPIC:
-
High Performance Ion Chromatography
- HPLC:
-
High Performance Liquid Chromatography
- HPMCP:
-
Hydroxypropyl methylcellulose phtalate
- HPSEC:
-
High Performance Size Exclusion Chromatography
- HS3st1:
-
Heparan Sulfate 3-O-sulfotransferase 1
- IU:
-
International Units
- IUBMB:
-
International Union of Biochemistry and Molecular Biology
- IV:
-
Intravenously
- LMWH(s):
-
Low Molecular Weight Heparin(s)
- MI:
-
Miocardial Infarction
- min:
-
Minutes
- Mn:
-
Number average molecular weight
- Mw:
-
Weight average molecular weight
- NCBD(s):
-
Non-Biological Complex Drug(s)
- NDST:
-
N-deacetylase/N-sulfotransferase
- NIBSC:
-
National Institute for Biological Standards and Control
- NMR:
-
Nuclear Magnetic Resonance
- NSTEACS:
-
Non-ST-Elevation-ACS
- OD:
-
Once-Daily
- OMCL:
-
Official Medicines Control Laboratory
- OSCS:
-
Oversulfated Chondroitin Sulfate
- OSTs:
-
2-, 6-, and 3-O-sulfotransferases
- PCI:
-
Percutaneous Coronary Intervention
- PCR:
-
Polymerase Chain Reaction
- PD:
-
Pharmacodynamic
- PF4:
-
Platelet factor 4
- Ph. Eur.:
-
European Pharmacopoeia
- RI:
-
Refractive index
- SAX-HPLC:
-
Strong Anion Exchange-High Perfomance Liquid Chromatography
- SC:
-
Subcutaneously
- STEMI:
-
ST-Elevation-MI
- TFPI:
-
Tissue Factor Pathway Inhibitor
- THR:
-
Total Hip Replacement
- TID:
-
Thrice Daily
- TKR:
-
Total Knee Replacement
- Tmax:
-
Time to maximum concentration
- UFH:
-
Unfractionated Heparin
- US:
-
United States
- USP:
-
United States Pharmacopeial Convention
- USP-NF:
-
United States Pharmacopeia Convention and National Formulary
- UV:
-
Ultraviolet
- VTE:
-
Venous Thromboembolism
- WHO:
-
World Health Organization
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Rodrigo, I., Caruncho, S., Alonso, C., Gómez-Outes, A., Mulloy, B. (2015). Low Molecular Weight Heparins, Biological Drugs close to Non-Biological Complex Drugs. In: Crommelin, D., de Vlieger, J. (eds) Non-Biological Complex Drugs. AAPS Advances in the Pharmaceutical Sciences Series, vol 20. Springer, Cham. https://doi.org/10.1007/978-3-319-16241-6_9
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