Valdecoxib

Source: Wikipedia, the free encyclopedia.
(Redirected from
Bextra
)
Valdecoxib
Clinical data
Trade namesBextra
Pregnancy
category
Routes of
administration		Oral
ATC code
Legal status
Legal status
Pharmacokinetic data
Bioavailability83%
Protein binding98%
MetabolismHepatic (CYP3A4 and 2C9 involved)
Elimination half-life8 to 11 hours
ExcretionRenal
Identifiers
  • 4-(5-methyl-3-phenylisoxazol-4-yl)benzenesulfonamide
JSmol)
  • O=S(=O)(N)c3ccc(c2c(onc2c1ccccc1)C)cc3
  • InChI=1S/C16H14N2O3S/c1-11-15(12-7-9-14(10-8-12)22(17,19)20)16(18-21-11)13-5-3-2-4-6-13/h2-10H,1H3,(H2,17,19,20) checkY
  • Key:LNPDTQAFDNKSHK-UHFFFAOYSA-N checkY
 ☒NcheckY (what is this?)  (verify)

Valdecoxib is a nonsteroidal anti-inflammatory drug (NSAID) used in the treatment of osteoarthritis, rheumatoid arthritis, and painful menstruation and menstrual symptoms. It is a selective cyclooxygenase-2 inhibitor. It was patented in 1995.[2]

Valdecoxib was manufactured and marketed under the brand name Bextra by

G. D. Searle & Company as an anti-inflammatory arthritis drug.[3] It was approved by the United States Food and Drug Administration (FDA) on November 20, 2001, to treat arthritis and menstrual cramps.[4][5] and was available by prescription in tablet form until 2005 when the FDA requested that Pfizer withdraw Bextra from the American market.[6] The FDA cited "potential increased risk for serious cardiovascular (CV) adverse events," an "increased risk of serious skin reactions" and the "fact that Bextra has not been shown to offer any unique advantages over the other available NSAIDs."[6]

In 2009, Bextra was at the center of the "largest health-care fraud settlement and the largest criminal fine of any kind ever."

Food, Drug and Cosmetic Act for misbranding Bextra "with the intent to defraud or mislead."[3]

A water-soluble and injectable prodrug of valdecoxib, parecoxib, is marketed in the European Union under the tradename Dynastat.

Uses until 2005

In the United States, the FDA approved valdecoxib for the treatment of osteoarthritis, adult rheumatoid arthritis, and primary dysmenorrhea.[8]

Valdecoxib was also used

off-label for controlling acute pain and various types of surgical pain.[8]

Side effects and withdrawal from market

On April 7, 2005, Pfizer withdrew Bextra from the U.S. market on recommendation by the FDA, citing an increased risk of

angina and Stevens–Johnson syndrome
.

Pfizer first acknowledged cardiovascular risks associated with Bextra in October 2004. The

placebos
.

In a large study published in

The Journal of the American Medical Association in 2006, valdecoxib appeared less adverse for renal (kidney) disease and heart arrhythmia compared to Vioxx, but elevated renal risks were slightly suggested.[9]

2009 settlement for off-label uses promotions

On September 2, 2009, the

indicted and sentenced to home confinement for destroying documents regarding the illegal promotion of Bextra.[12][13] In addition, a regional manager pleaded guilty to distribution of a misbranded product, and was fined $75,000 and 24 months on probation.[14]

The remaining $1 billion of the fine were paid to resolve allegations under the civil

False Claims Act case and is the largest civil fraud settlement against a pharmaceutical company. Six whistleblowers were awarded more than $102 million for their role in the investigation.[15] Former Pfizer sales representative John Kopchinski acted as a qui tam relator and filed a complaint in 2004 outlining the illegal conduct in the marketing of Bextra.[16] Kopchinski was awarded $51.5 million for his role in the case because the improper marketing of Bextra was the largest piece of the settlement at $1.8 billion.[17]

Analytical methods

Several HPLC-UV methods[18] have been reported for valdecoxib estimation in biological samples like human urine.[19][20] Valdecoxib has analytical methods for bioequivalence studies,[21][22] metabolite determination,[23][24][19] estimation of formulation,[25] and an HPTLC method for simultaneous estimation in tablet dosage form.[26]

See also

References

  1. ^ Anvisa (2023-03-31). "RDC Nº 784 - Listas de Substâncias Entorpecentes, Psicotrópicas, Precursoras e Outras sob Controle Especial" [Collegiate Board Resolution No. 784 - Lists of Narcotic, Psychotropic, Precursor, and Other Substances under Special Control] (in Brazilian Portuguese). Diário Oficial da União (published 2023-04-04). Archived from the original on 2023-08-03. Retrieved 2023-08-16.
  2. ISBN 9783527607495
    .
  3. ^ a b "Pfizer fined $2.3B in record fraud settlement Pharma giant illegally promoted product: Justice Department says, in largest health care fraud settlement in history". Washington: CNN. 2 September 2009. Retrieved 28 December 2015.
  4. ^ a b Gardiner H (2 September 2009). "Pfizer Pays $2.3 Billion to Settle Marketing Case". New York Times. Retrieved 28 December 2015.
  5. ^ "Valdecoxib. U.S. FDA Drug Approval". Thomson Micromedex. Retrieved June 8, 2007.
  6. ^ a b "Information for Healthcare Professionals: Valdecoxib (marketed as Bextra)". U.S. Food and Drug Administration. 2005. Retrieved 28 December 2015.
  7. ^ Elkind P, Reingold J (28 July 2011). "Inside Pfizer's palace coup". Fortune. Retrieved 28 December 2015.
  8. ^ a b "Pfizer to pay $2.3 billion to resolve criminal and civil health care liability relating to fraudulent marketing and the payment of kickbacks". Stop Medicare Fraud, US Dept of Health & Human Svc, and of Justice. Archived from the original on 2012-08-30. Retrieved 2012-07-04.
  9. PMID 16968832. Archived from the original
    on 2020-11-05. Retrieved 2006-09-17.
  10. ^ "Pfizer agrees record fraud fine", BBC, 2009-09-02
  11. ^ "Pharmacia & Upjohn Company Inc Pleads Guilty to Fraudulent Marketing of Bextra". The United States Attorney's Office, District of Massachusetts. 15 September 2009. Archived from the original on 7 December 2009. Retrieved 2009-10-16.
  12. ^ "Ex-Pfizer Manager Found Guilty of Obstruction". The United States Department of Justice - United States Attorney's Office - District of Massachusetts. 17 March 2009. Archived from the original on 1 June 2009. Retrieved 16 October 2009.
  13. ^ Edwards J (2009-06-26). "Pfizer's Off-Label Bextra Team Was Called "The Highlanders" - CBS News". Industry.bnet.com. Archived from the original on June 29, 2009. Retrieved 2019-06-06.
  14. ^ "Pharmaceutical Company Manager Sentenced for Off-Label Marketing". The United States Department of Justice - United States Attorney's Office - District of Massachusetts. 18 June 2009. Archived from the original on 1 September 2009. Retrieved 16 October 2009.
  15. ^ "Justice Department Announces Largest Health Care Fraud Settlement in Its History: Pfizer to Pay $2.3 Billion for Fraudulent Marketing". Federal Bureau of Investigation - Press Release. 2 September 2009. Archived from the original on 9 September 2010. Retrieved 28 July 2016.
  16. ^ "Pfizer settlement and Bextra whistleblower case: News stories and court documents". Whistleblower News | Articles, Blogs, & Insights. Phillips & Cohen LLP. Archived from the original on 5 February 2011. Retrieved 6 June 2019.
  17. ^ "Bextra whistleblower case leads to record-setting Pfizer settlement". Whistleblower news. Phillips & Cohen LLP. Archived from the original on 29 December 2010. Retrieved 2019-06-06.
  18. ISBN 978-3-8443-2869-1
    .
  19. ^
    PMID 12535845
    .
  20. S2CID 95275785
    .
  21. ^ Sahu PK, Sankar KR, Annapurna MM (2011). "Determination of Valdecoxib in Human Plasma Using Reverse Phase HPLC" (PDF). Journal of Chemistry. 8 (2): 875–881.
  22. ^ Mandal U, Jayakumar M, Ganesan M, Nandi S, Pal TK, Chakraborty MK, Roy Chowdhary A, Chattoraj TK (2004). "[title]". Indian Drugs. 41: 59.
  23. PMID 12946532
    .
  24. PMID 15473012
    .
  25. ^ Sutariya VB, Rajashree M, Sankalia MG, Priti P (2004). "Spectrophotometric Estimation Of Valdecoxib In Pure Form And Tablets". Indian Journal of Pharmaceutical Sciences. 66 (3): 360–362.
  26. doi:10.4103/0250-474X.32133
    .

External links
Retrieved from "https://en.wikipedia.org/w/index.php?title=Valdecoxib&oldid=1190950195"
This page is based on the copyrighted Wikipedia article: Bextra. Articles is available under the CC BY-SA 3.0 license; additional terms may apply.Privacy Policy