Lasofoxifene

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Lasofoxifene
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Systematic (IUPAC) name
(5R,6S)-6-phenyl-5-[4-(2-pyrrolidin-1-ylethoxy)phenyl]-5,6,7,8-tetrahydronaphthalen-2-ol
Identifiers
CAS Number 180916-16-9
ATC code G03XC (WHO)
PubChem CID 216416
Chemical data
Formula C28H31NO2
Molar mass 413.55 g/mol
563.64 g/mol (tartrate)[[Script error: No such module "String".]]
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Lasofoxifene (INN) (proposed tradename Fablyn) is a non-steroidal selective estrogen receptor modulator (SERM) which is under development by Pfizer for the prevention and treatment of osteoporosis and for the treatment of vaginal atrophy[1], and the result of an exclusive research collaboration with Ligand Pharmaceuticals (LGND).

In September 2005, Pfizer received a non-approvable letter from the U.S. Food and Drug Administration regarding lasofoxifene (trade name Oporia), a selective estrogen receptor modulator for the prevention of osteoporosis.

On January 2008, Ligand Pharmaceuticals, through its marketing partner, Pfizer, submitted a New Drug Application for lasofoxifene, which is now to be marketed under the tradename Fablyn.

Lasofoxifene was approved in the EU under the brand name Fablyn by the EMEA in March 2009.(see)

Lasofoxifene is a desmethyl dihydro analog of nafoxidine.[2]

Treatment

In postmenopausal women with osteoporosis, lasofoxifene at a dose of 0.5 mg per day was associated with reduced risks of nonvertebral and vertebral fractures, ER-positive breast cancer, coronary heart disease, and stroke but an increased risk of venous thromboembolic events.[3][4]

Chemical Synthesis

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Cameron, C. O.; Dasilva Jardine, P. A.; Rosati, R. L.; 1996, U.S. Patent 5,552,412.

References

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External links


pl:Lazofoksyfen
  1. Gennari L, Merlotti D, Martini G, Nuti R (2006). "Lasofoxifene: a third-generation selective estrogen receptor modulator for the prevention and treatment of osteoporosis". Expert Opin Investig Drugs. 15 (9): 1091–103. doi:10.1517/13543784.15.9.1091. PMID 16916275. 
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  3. Gennari L, Merlotti D, Nuti R (2010). "Selective estrogen receptor modulator (SERM) for the treatment of osteoporosis in postmenopausal women: focus on lasofoxifene". Clin Interv Aging. 5: 19–29. PMC 2817938Freely accessible. PMID 20169039. 
  4. Cummings SR, Ensrud K, Delmas PD, LaCroix AZ, Vukicevic S, Reid DM, Goldstein S, Sriram U, Lee A, Thompson J, Armstrong RA, Thompson DD, Powles R, Zanchetta J, Kendler D, Neven P, Eastell R, the PEARL Study Investigators (2010). "Lasofoxifene in Postmenopausal Women with Osteoporosis". N Engl J Med. 362 (8): 686–696. doi:10.1056/NEJMoa0808692. PMID 20181970.