Indiplon

From Infogalactic: the planetary knowledge core
Jump to: navigation, search
Indiplon
Indiplon.svg
Systematic (IUPAC) name
N-methyl-N-[3-[3-(thiophene-2-carbonyl)
pyrazolo[5,1-b]pyrimidin-7-yl]phenyl]acetamide
Clinical data
Legal status
Routes of
administration		 Oral
Identifiers
CAS Number 325715-02-4 N
ATC code none
PubChem CID: 6450813
IUPHAR/BPS 4221
ChemSpider 4953363 N
UNII 8BT63DA42E N
KEGG D02640 N
ChEMBL CHEMBL262075 N
Chemical data
Formula C20H16N4O2S
Molecular mass 376.0993 g/mol
  • O=C(C1=CC=CS1)C2=C3N=CC=C(C4=CC(N(C)C(C)=O)=CC=C4)N3N=C2
  • InChI=1S/C20H16N4O2S/c1-13(25)23(2)15-6-3-5-14(11-15)17-8-9-21-20-16(12-22-24(17)20)19(26)18-7-4-10-27-18/h3-12H,1-2H3 N
  • Key:CBIAWPMZSFFRGN-UHFFFAOYSA-N YesY
 NYesY (what is this?)  (verify)

Indiplon (INN and USAN) is a nonbenzodiazepine, hypnotic sedative that was developed in 2 formulations - an immediate release product for sleep onset and a modified-release (a.k.a. controlled-release or extended-release) version for sleep maintenance.

Mode of action

Indiplon works by enhancing the action of the inhibitory neurotransmitter GABA, like most other nonbenzodiazepine sedatives. It primarily binds to the α1 subunits of the GABAA receptors in the brain.[1]

History

Indiplon was discovered at Lederle Laboratories (which was later acquired by Wyeth) in the 1980s and was called CL 285,489.[2]:454 In 1998 Lederle licensed it, along with other early stage drug candidates, to DOV Pharmaceutical, a startup formed by former Lederle employees, and Dov exclusively sublicensed its rights in the drug to Neurocrine Biosciences in that same year.[2] In 2002, Neurocrine entered into an agreement with Pfizer to develop the drug.[2]

Indiplon was originally scheduled for release in 2007, when Sanofi-Aventis' popular hypnotic zolpidem lost its patent rights in the United States and thus became available as a much less expensive generic. In 2002, Neurocrine Biosciences had entered into an agreement with Pfizer to co-market indiplon in the US, in a deal worth a potential $400mn.[3] However, following the issuing of a non-approvable letter for the modified-release 15 mg formulation and an approvable letter with stipulations for the 5 mg and 10 mg immediate-release version by the FDA in May 2006,[4] Pfizer ended its relationship with Neurocrine.[5] Neurocrine's stock price dropped 60% on the news.[6]

Following a resubmission, the FDA in December 2007 deemed Neurocrine's new drug application (NDA) 'approvable' in the 5 and 10 mg formulations,[7] but requested new studies as a prerequisite to approval, including a clinical trial in the elderly, a safety study comparing adverse effects to those of similarly marketed drugs, and a preclinical study examining indiplon's safety in the third trimester of pregnancy.[8]

Following the 2007 FDA letter, Neurocrine decided to discontinue all clinical and marketing development of Indiplon in the United States.[7][8]

References

  1. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  2. ↑ 2.0 2.1 2.2 Neubauer, DN. "Indiplon". pp 453-464 in GABA and Sleep: Molecular, Functional and Clinical Aspects. Eds Jaime M. Monti, Seithikurippu Ratnas Pandi-Perumal, Hanns Möhler. Springer Science & Business Media, 2010 ISBN 9783034602266
  3. ↑ San Diego's Neurocrine Biosciences Scores Second Big Deal in Two Days - The Motley Fool, 18 June 2010
  4. ↑ Neurocrine's FDA Nightmare - TheStreet.com, 16 May 2006
  5. ↑ Pfizer Drops Neurocrine Deal - TheStreet.com, 22 June 2006
  6. ↑ Neurocrine stock price plunges 60 percent:FDA's mixed review of sleeping pill Indiplon could threaten Pfizer-Neurocrine partnership - CNN Money, 15 May 2006
  7. ↑ 7.0 7.1 Lua error in package.lua at line 80: module 'strict' not found.
  8. ↑ 8.0 8.1 Lua error in package.lua at line 80: module 'strict' not found.

External links


Retrieved from "https://infogalactic.com/w/index.php?title=Indiplon&oldid=1913080"