Chemistry:Cadazolid

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Short description: Chemical compound
Cadazolid
Cadazolid.svg
Clinical data
ATC code
  • none
Legal status
Legal status
  • Investigational
Identifiers
CAS Number
ChemSpider
UNII
KEGG
Chemical and physical data
FormulaC29H29F2N3O8
Molar mass585.561 g·mol−1
3D model (JSmol)

Cadazolid is an experimental antibiotic of the oxazolidinone class made by Actelion Pharmaceuticals Ltd. which is effective against Clostridium difficile, a major cause of drug resistant diarrhea in the elderly.[1] Current drug treatments for this infection involve orally delivered antibiotics, principally fidaxomicin, metronidazole and vancomycin; the last two drugs are the principal therapeutic agents in use, but fail in approximately 20 to 45% of the cases. The drug works by inhibiting synthesis of proteins in the bacteria, thus inhibiting the production of toxins and the formation of spores.[2] Cadazolid progressed through to Phase III clinical trials,[1] but in its financial results for Q1 2018, Idorsia mentions that Actelion informed them that "following completion of Phase 3 data analysis of cadazolid - it has decided to discontinue the development of the compound."[3]

Structure

The chemical structure of cadazolid combines the pharmacophores of oxazolidinone and fluoroquinolone antibiotics.[2]

Clinical trials

In a study published in the journal Anaerobe, cadazolid has been shown to be effective in vitro against 133 strains of Clostridium difficile all collected from Sweden.[4]

In phase I tests, sixty four male patients reacted favourably to cadazolid which primarily acted and remained in the colon while displaying little toxicity even in regimes involving large doses.[1]

See also

References

  1. 1.0 1.1 1.2 Boschert, Sherry (19 September 2012). "Promising C. difficile Antibiotic in Pipeline". International Medical News Group. http://www.internalmedicinenews.com/index.php?id=2049&type=98&tx_ttnews%5Btt_news%5D=137097&cHash=da03e20e36. 
  2. 2.0 2.1 "Cadazolid". .actelion.com. http://www1.actelion.com/en/scientists/development-pipeline/phase-2/cadazolid.page. 
  3. "Idorsia announces financial results for the first quarter 2018". April 19, 2018. https://www.idorsia.com/media/news-details?newsId=2185240. 
  4. "In vitro activity of cadazolid against Clostridium difficile strains isolated from primary and recurrent infections in Stockholm, Sweden". Anaerobe 20: 32–5. April 2013. doi:10.1016/j.anaerobe.2013.02.003. PMID 23454525.