Peginterferon alfa-2a

Peginterferon alfa-2a

Clinical data
AHFS/Drugs.com	Consumer Drug Information
MedlinePlus	a605029
Pregnancy cat.	?
Legal status	?
Routes	subcutaneous
Identifiers
CAS number	215647-85-1 N
ATC code	L03AB11 L03AB61 (in combinations)
DrugBank	BTD00043
UNII	Q46947FE7K N
KEGG	D02748 Y
ChEMBL	CHEMBL1201560 N
Chemical data
Formula	C860H1353N227O255S9
Mol. mass	19241 g/mol (unpegylated) 40000 g/mol (pegylated)
N(what is this?)  alfa-2a (verify)

Pegylated interferon alfa-2a (pegylated with a branched 40 kDa PEG chain; commercial name Pegasys) is an antiviral drug discovered at the pharmaceutical company F. Hoffmann-La Roche; it has a dual mode of action - both antiviral and on the immune system. The addition of polyethylene glycol to the interferon, through a process known as pegylation, enhances the half-life of the interferon when compared to its native form.

Uses

This drug is approved around the world for the treatment of chronic hepatitis C (including patients with HIV co-infection, cirrhosis, 'normal' levels of ALT) and has recently been approved (in the EU, U.S., China and many other countries) for the treatment of chronic hepatitis B.

Peginterferon alfa-2a is a long acting interferon. Interferons are proteins released in the body in response to viral infections. Interferons are important for fighting viruses in the body, for regulating reproduction of cells, and for regulating the immune system.^{[citation needed]}

Host genetic factors influencing treatment response

For genotype 1 hepatitis C treated with Pegylated interferon-alpha-2a or Pegylated interferon-alpha-2b (brand names Pegasys or PEG-Intron) combined with ribavirin, it has been shown genetic polymorphisms near the human IL28B gene, encoding interferon lambda 3, are associated with significant differences in response to the treatment. This finding, originally reported in Nature ^[1], showed genotype 1 hepatitis C patients carrying certain genetic variant alleles near the IL28B gene are more likely to achieve sustained virological response after the treatment than others. Later report from Nature ^[2] demonstrated the same genetic variants are also associated with the natural clearance of the genotype 1 hepatitis C virus.

See also

• Interferon
• PEGylation

References

1. ^ Ge D, Fellay J, Thompson AJ, et al. (2009). "Genetic variation in IL28B predicts hepatitis C treatment-induced viral clearance". Nature 461 (7262): 399–401. doi:10.1038/nature08309. PMID 19684573. 
2. ^ Thomas DL, Thio CL, Martin MP, et al. (2009). "Genetic variation in IL28B and spontaneous clearance of hepatitis C virus". Nature 461 (7265): 798–801. doi:10.1038/nature08463. PMID 19759533. 

External links

• Interferon and hepatitis c at pegasys.com
• PMPRB at pmprb-cepmb.gc.ca
• Chemical structure at hepalife.com
• MeSH Pegasys

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This antineoplastic or immunomodulatory drug article is a stub. You can help Wikipedia by expanding it.v · Categories: Antivirals Immunostimulants Antiinfective agent stubs Antineoplastic and immunomodulating drug stubs Wikimedia Foundation. 2010. Игры ⚽ Поможем написать курсовую J-XX Spherical function Look at other dictionaries: Peginterferon alfa-2b — Systematic (IUPAC) name PEGylated human interferon alpha 2b Clinical data AHFS/Drugs.com Consumer Drug Information …   Wikipedia Peginterferon alfa — Wikipedia:Redaktion Chemie/ausgeblendete Strukturformel Allgemeines Freiname Peginterferon α 2a Summenformel C860H1353N227O255S9 CAS Nummer 198153 51 4 …   Deutsch Wikipedia Peginterferon alfa-2a — Wikipedia:Redaktion Chemie/ausgeblendete Strukturformel Allgemeines Freiname Peginterferon α 2a Summenformel C860H1353N227O255S9 CAS Nummer 198153 51 4 …   Deutsch Wikipedia Peginterferon alfa-2b — Wikipedia:Redaktion Chemie/ausgeblendete Strukturformel Allgemeines Freiname Peginterferon α 2a Summenformel C860H1353N227O255S9 CAS Nummer 198153 51 4 …   Deutsch Wikipedia peginterferon alfa-2a — a covalent conjugate of recombinant interferon alfa 2a and polyethylene glycol (PEG), used in the treatment of chronic infection by hepatitis C virus or hepatitis B virus; administered subcutaneously …   Medical dictionary peginterferon alfa-2b — a covalent conjugate of recombinant interferon alfa 2b and polyethylene glycol (PEG), used in the treatment of chronic infection by hepatitis C virus; administered subcutaneously …   Medical dictionary Hepatitis C/co-infection with HIV — Patients who are HIV positive are commonly co infected with the Hepatitis C virus (HCV) due to shared routes of transmission: percutaneous exposure to blood, sexual intercourse, and from a mother to her infant.Infection with HCV can be… …   Wikipedia Hepatitis C — Classification and external resources Electron micrograph of hepatitis C virus purified from cell culture. The scale = 50 nanometers ICD 10 B …   Wikipedia Telaprevir — Strukturformel Allgemeines Freiname Telaprevir Andere Namen …   Deutsch Wikipedia Boceprevir — Strukturformel Allgemeines Freiname Boceprevir Andere Namen …   Deutsch Wikipedia 18+ © Academic, 2000-2025 Contact us: Technical Support, Advertising Dictionaries export, created on PHP, Joomla, Drupal, WordPress, MODx. Mark and share Search through all dictionaries Translate… Search Internet Share the article and excerpts Direct link … Do a right-click on the link above and select “Copy Link”