User:Mr. Ibrahem/Natalizumab

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Mr. Ibrahem/Natalizumab
Natalizumab Fab fragment bound to the headpiece of an α4-integrin. From PDB 4IRZ​.
Monoclonal antibody
TypeWhole antibody
SourceHumanized (from mouse)
Targetalpha-4 integrin
Clinical data
Trade namesTysabri, Antegren, others
Other namesAN100226M
AHFS/Drugs.comMonograph
MedlinePlusa605006
License data
Pregnancy
category
Routes of
administration
Intravenous infusion
Legal status
Legal status
  • UK: POM (Prescription only)[2]
  • US: ℞-only
  • EU: Rx-only
  • In general: ℞ (Prescription only)
Pharmacokinetic data
Bioavailabilityn/a
Elimination half-life11 ± 4 days
Chemical and physical data
Molar mass149 kg/mol
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Natalizumab, sold under the brand name Tysabri among others, is a medication used to treat multiple sclerosis (MS) and Crohn's disease (CD).[3] For MS it is used for clinically isolated syndrome, relapsing-remitting disease, and active secondary progressive disease.[3] For CD it is used when other treatments are not effective.[3] It is given by gradual injection into a vein every 4 weeks.[4]

Common side effects include urinary tract infection, throat inflammation, headache, dizziness, nausea, joint pain and tiredness.[4] Other side effects may include progressive multifocal leukoencephalopathy (PML), herpes encephalitis, liver problems, anaphylaxis, low platelets, and infection.[3] It is a monoclonal antibody which attaches to a protein called α4β1 integrin on white blood cells, decreasing inflammation.[4]

Natalizumab was approved for medical use in the United States in 2004 and Europe in 2006.[5][4] In the United Kingdom it costs the NHS about £1,100 per dose as of 2021.[6] In the United States this amount costs about 7,800 USD.[7]

References[edit]

  1. ^ a b "Natalizumab (Tysabri) Use During Pregnancy". Drugs.com. 24 September 2019. Archived from the original on 23 November 2020. Retrieved 4 May 2020.
  2. ^ "Tysabri 300 mg concentrate for solution for infusion - Summary of Product Characteristics (SmPC)". (emc). 14 November 2019. Archived from the original on 22 October 2020. Retrieved 4 May 2020.
  3. ^ a b c d e f "Tysabri- natalizumab injection". DailyMed. 12 August 2019. Archived from the original on 27 March 2020. Retrieved 4 May 2020.
  4. ^ a b c d e "Tysabri EPAR". European Medicines Agency (EMA). Archived from the original on 6 August 2020. Retrieved 4 May 2020. Text was copied from this source, which is © EMA [1995-2020]. Reuse is authorised, provided the source is acknowledged.
  5. ^ "Natalizumab Monograph for Professionals". Drugs.com. Archived from the original on 6 February 2017. Retrieved 12 November 2021.
  6. ^ BNF 81: March-September 2021. BMJ Group and the Pharmaceutical Press. 2021. p. 905. ISBN 978-0857114105.
  7. ^ "Tysabri Prices, Coupons & Patient Assistance Programs". Drugs.com. Archived from the original on 24 January 2021. Retrieved 12 November 2021.