Chemistry:Norgestrienone

From HandWiki
Short description: Chemical compound
Norgestrienone
Norgestrienone.svg
Clinical data
Trade namesOgyline, Planor, Miniplanor
Other namesRU-2010; A-301; 17α-Ethynyltrienolone; 17α-Ethynyltrenbolone; Δ9,11-Norethisterone; 17α-Ethynylestra-4,9,11-trien-17β-ol-3-one
Routes of
administration
By mouth
Drug classProgestogen; Progestin; Androgen; Anabolic steroid
ATC code
Identifiers
CAS Number
PubChem CID
ChemSpider
UNII
KEGG
Chemical and physical data
FormulaC20H22O2
Molar mass294.394 g·mol−1
3D model (JSmol)
  (verify)

Norgestrienone, sold under the brand names Ogyline, Planor, and Miniplanor, is a progestin medication which has been used in birth control pills, sometimes in combination with ethinylestradiol.[1][2][3][4][5] It was developed by Roussel Uclaf and has been registered for use only in France .[4][5][6] Under the brand name Planor, it has been marketed in France as 2 mg norgestrienone and 50 μg ethinylestradiol tablets.[7] It is taken by mouth.[5]

Norgestrienone is a progestin, or a synthetic progestogen, and hence is an agonist of the progesterone receptor, the biological target of progestogens like progesterone.[8] It has some androgenic activity.[9][10][11][12]

Norgestrienone was first described in the literature in 1965.[10] It is sometimes referred to as a "second-generation" progestin.[13] Norgestrienone is no longer available.[citation needed]

Medical uses

Norgestrienone was used in hormonal contraception to prevent pregnancy.[2][7] It has typically been used as an oral contraceptive at a dosage of 2 mg/day in combination with ethinylestradiol and 350 µ/day when used alone.[5]

Side effects

Pharmacology

Pharmacodynamics

Norgestrienone has been found to possess similar affinity for the progesterone receptor and androgen receptor,[8] and in accordance, has some androgenic activity.[9][10][11][12] The androgenic activity of norgestrienone is greater than that of other 19-nortestosterone derivatives due to the presence of the C9(11) double bond, which enhances said activity.[12] The ratio of progestogenic to androgenic activity appears to be much lower for norgestrienone that it is for other 19-nortestosterone progestins such as norethisterone and levonorgestrel.[14][15][16][17] Gestrinone, the 18-methyl analogue of norgestrienone, has even greater androgenic activity than norgestrienone, as this modification increases androgenic activity similarly.[12]

Relative affinities (%) of norgestrienone and related steroids
Compound PR AR ER GR MR SHBG CBG
Norethisterone 155–156 43–45 <0.1 2.7–2.8 0.2 ? ?
Norgestrienone 63–65 70 <0.1 11 1.8 ? ?
Levonorgestrel 170 84–87 <0.1 14 0.6–0.9 ? ?
Gestrinone 75–76 83–85 <0.1, 3–10 77 3.2 ? ?

Pharmacokinetics

The metabolism of norgestrienone in humans has been studied.[18]

Chemistry

Norgestrienone, also known as 17α-ethynyl-19-nor-δ9,11-testosterone or as 17α-ethynylestra-4,9,11-trien-17β-ol-3-one, as well as δ9,11-norethisterone or 17α-ethynyltrienolone (17α-ethynyltrenbolone), is a synthetic estrane steroid and a derivative of testosterone and 19-nortestosterone.[1][4][19] It is structurally related to the anabolic steroid trenbolone (19-nor-δ9,11-testosterone; the non-17α-ethynylated analogue of norgestrienone), the progestogenic and androgenic steroid gestrinone (the 13β-ethyl variant or 18-methyl derivative of norgestrienone), and the anabolic steroid tetrahydrogestrinone (the 18-methyl and 17α-ethyl variant of norgestrienone).[1][4][20]

History

Norgestrienone was first described in the literature in 1965.[10] It is sometimes referred to as a "second-generation" progestin based on its time of introduction.[13]

Society and culture

Generic names

Norgestrienone is the generic name of the drug and its INN.[1][2][4] It is also known by its developmental code names RU-2010 and A-301.[1][2][4]

Brand names

Norgestrienone has been marketed under the brand names Ogyline, Planor, and Miniplanor.[1][2][4]

Availability

Norgestrienone is no longer marketed and hence is no longer available in any country.[citation needed] It was previously used in France .[4] The medication was never marketed in the United States .[21]

Research

Norgestrienone has been studied for use in male hormonal contraception.[22]

References

  1. 1.0 1.1 1.2 1.3 1.4 1.5 The Dictionary of Drugs: Chemical Data: Chemical Data, Structures and Bibliographies. Springer. 14 November 2014. pp. 887–. ISBN 978-1-4757-2085-3. https://books.google.com/books?id=0vXTBwAAQBAJ&pg=PA887. 
  2. 2.0 2.1 2.2 2.3 2.4 Concise Dictionary of Pharmacological Agents: Properties and Synonyms. Springer Science & Business Media. 6 December 2012. pp. 202–. ISBN 978-94-011-4439-1. https://books.google.com/books?id=tsjrCAAAQBAJ&pg=PA202. 
  3. "Clinical trial with subdermal implants containing norgestrienone". Contraception 18 (4): 429–440. October 1978. doi:10.1016/0010-7824(78)90027-6. PMID 720075. 
  4. 4.0 4.1 4.2 4.3 4.4 4.5 4.6 4.7 Index Nominum 2000: International Drug Directory. Taylor & Francis. January 2000. pp. 751–. ISBN 978-3-88763-075-1. https://books.google.com/books?id=5GpcTQD_L2oC&pg=PA751. 
  5. 5.0 5.1 5.2 5.3 "Sex hormones and their modulators". Martindale: The Complete Drug Reference (36th ed.). London: Pharmaceutical Press. 2009. p. 2122. ISBN 978-0-85369-840-1. https://www.medicinescomplete.com/. "Norgestrienone is a progestogen structurally related to norethisterone that has been used as an oral contraceptive. Typical doses have been 2 mg daily with an oestrogen, and 350 micrograms daily when used alone." 
  6. Pharmaceuticals, 4 Volume Set. Wiley. 2000. p. 1580,1599. ISBN 978-3-527-29874-7. https://books.google.com/books?id=uG9qAAAAMAAJ. 
  7. 7.0 7.1 IARC Working Group on the Evaluation of Carcinogenic Risks to Humans; World Health Organization; International Agency for Research on Cancer (2007). Combined Estrogen-progestogen Contraceptives and Combined Estrogen-progestogen Menopausal Therapy. World Health Organization. pp. 455–. ISBN 978-92-832-1291-1. https://books.google.com/books?id=aGDU5xibtNgC&pg=PA455. 
  8. 8.0 8.1 "A comparison of progestin and androgen receptor binding using the CoMFA technique". Journal of Computer-Aided Molecular Design 6 (6): 569–581. December 1992. doi:10.1007/bf00126215. PMID 1291626. Bibcode1992JCAMD...6..569L. 
  9. 9.0 9.1 Biochemical Actions of Hormones. Academic Press. 1 January 1982. ISBN 978-0-12-452809-3. https://books.google.com/books?id=AxpPAQAAIAAJ. 
  10. 10.0 10.1 10.2 10.3 Current Management of the Menopause. CRC Press. 22 June 2005. pp. 45–. ISBN 978-0-203-48612-2. https://books.google.com/books?id=WD7S7677xUUC&pg=PA45. 
  11. 11.0 11.1 Interconnections Between Human and Ecosystem Health. Springer Science & Business Media. 6 December 2012. pp. 60–. ISBN 978-94-009-1523-7. https://books.google.com/books?id=dQ1JCAAAQBAJ&pg=PA60. 
  12. 12.0 12.1 12.2 12.3 "Relationships between chemical structure and biological properties of progestogens". American Journal of Obstetrics and Gynecology 142 (6 Pt 2): 719–724. March 1982. doi:10.1016/S0002-9378(16)32477-2. PMID 7065053. 
  13. 13.0 13.1 "Risk of venous thromboembolism with third-generation oral contraceptives: A review". American Journal of Obstetrics and Gynecology 180 (2 Pt 2): 295–301. February 1999. doi:10.1016/S0002-9378(99)70721-0. PMID 9988833. 
  14. Cite error: Invalid <ref> tag; no text was provided for refs named pmid7382482
  15. Cite error: Invalid <ref> tag; no text was provided for refs named pmid7421203
  16. Cite error: Invalid <ref> tag; no text was provided for refs named pmid8136304
  17. Cite error: Invalid <ref> tag; no text was provided for refs named RaynaudOjasoo1979
  18. "Metabolism of contraceptive steroids in man.". Excerpta Medica International Congress Series 219: 915–922. 1970. https://www.popline.org/node/480947. 
  19. Pediatric and Adolescent Obstetrics and Gynecology. Springer Science & Business Media. 6 December 2012. pp. 236–. ISBN 978-1-4612-5064-7. https://books.google.com/books?id=l9XTBwAAQBAJ&pg=PA236. 
  20. Reconstructive and Reproductive Surgery in Gynecology. CRC Press. 27 September 2010. pp. 90–. ISBN 978-1-84184-757-3. https://books.google.com/books?id=C4TOBQAAQBAJ&pg=PA90. 
  21. Strategies for Organic Drug Synthesis and Design. John Wiley & Sons. 4 March 2009. pp. 134–. ISBN 978-0-470-39959-0. https://books.google.com/books?id=fEwl6Qev-mUC&pg=PA134. 
  22. "The use of progestins and androgens as a male contraceptive. Hormonal control of male fertility.". DHEW Publication No.(NIH).: 78–1097. 1978. https://www.popline.org/node/443605. 

{{Navbox

| name = Androgens and antiandrogens
| title = Androgens and antiandrogens
| state = collapsed
| listclass = hlist
| groupstyle = text-align:center;
| group1 = Androgens
(incl. AAS)

| list1 =

  | group3 = Antigonadotropins
  | list3 =
  | group4 = Others
  | list4 =
}}
| liststyle = background:#DDDDFF;
| list3 =
See also
Androgen receptor modulators
Estrogens and antiestrogens
Progestogens and antiprogestogens
List of androgens/anabolic steroids

}}