Promegestone

Source: Wikipedia, the free encyclopedia.
Promegestone
Progestin
ATC code
Pharmacokinetic data
Protein bindingTo albumin[1]
MetabolismLiver (hydroxylation)[1][3]
MetabolitesTrimegestone
Elimination half-lifePromegestone: ?
Trimegestone: 13.8–15.6 hours[1][2]
Identifiers
  • (8S,13S,14S,17S)-13,17-dimethyl-17-propionyl-1,2,6,7,8,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-3-one
JSmol)
  • CCC(=O)[C@]1(CC[C@@H]2[C@@]1(CCC3=C4CCC(=O)C=C4CC[C@@H]23)C)C
  • InChI=1S/C22H30O2/c1-4-20(24)22(3)12-10-19-18-7-5-14-13-15(23)6-8-16(14)17(18)9-11-21(19,22)2/h13,18-19H,4-12H2,1-3H3/t18-,19+,21+,22-/m1/s1
  • Key:QFFCYTLOTYIJMR-XMGTWHOFSA-N

Promegestone, sold under the brand name Surgestone, is a

gynecological disorders.[4][1][5][6] It is taken by mouth.[1]

hormonal activity.[1][8][2] The medication is largely a prodrug of trimegestone.[7][1]

Promegestone was first described in 1973 and was introduced for medical use in

scientific research as a radioligand of the progesterone receptor.[4][13]

Medical uses

Promegestone is used in

progestogen-only birth control, although it is not specifically licensed as such.[15]

Side effects

menstrual irregularities among others.[7] It has no androgenic side effects.[4][5]

Pharmacology

Pharmacodynamics

Trimegestone (21(S)-hydroxyl-promegestone), the major active metabolite of promegestone.

Promegestone is a

antimineralocorticoid and antiandrogenic activity.[8][2] In addition, promegestone has been found to possess some neurosteroid activity by acting as a non-competitive antagonist of the nicotinic acetylcholine receptor, similarly to progesterone.[16]

Pharmacokinetics

Following

conjugate of trimegestone and 1% of a dose is recovered as the glucuronide and/or sulfate conjugate of 21(R)-hydroxypromegestone.[7]

Chemistry

Promegestone, also known as 17α,21-dimethyl-δ9-19-norprogesterone or as 17α,21-dimethyl-19-norpregna-4,9-diene-3,20-dione, is a

17α-methyl-19-norprogesterone.[9][11][1] Related derivatives of 17α-methyl-19-norprogesterone include demegestone and trimegestone.[9][12][1]

History

Promegestone was first described in the literature in 1973 and was introduced for medical use in France in 1983.[9][10][11][5] It was developed by Roussel Uclaf in France.[5]

Society and culture

Generic names

Promegestone is the

INNTooltip International Nonproprietary Name, while promégestone is its DCFTooltip Dénomination Commune Française.[6][9][12] It is also known by its developmental code name R-5020 or RU-5020.[6][9][12]

Brand names

Promegestone is marketed exclusively under the brand name Surgestone.[6][12]

Availability

Promegestone is or has been marketed in France, Portugal, Tunisia, and Argentina.[6][12]

References

  1. ^
    S2CID 24616324
    .
  2. ^ .
  3. ^ a b c d e f g h i Kuhl H (2011). "Pharmacology of progestogens" (PDF). Journal für Reproduktionsmedizin und Endokrinologie-Journal of Reproductive Medicine and Endocrinology. 8 (Special Issue 1): 157–176.
  4. ^
    PMID 6366037
    .
  5. ^ .
  6. ^ a b c d e f "List of Progestins".
  7. ^ . Investigation of the Pharmacokinetics and Metabolism of Promegestone in Healthy Female Volunteers Following Single Oral Administration of 1 mg Promegestone I Gualano V., 1Geneteau A., I Chassard D., I Fordham P., 2Schatz B. I Aster-Cephac, 3/5, Rue Eugene Millon, 75015 Paris, France 2Laboratoire Aventis, 46 Quai De La Rapee, F-75601 Paris Cedex 12, France. A single 1 mg oral dose of promegestone (Surgestonee, 2x0.5 mg) was given to 12 healthy premenopausal women. The aims were to determine the concentrations of promegestone and its metabolites and their pharmacokinet-ic parameters. Blood and urine samples were followed until 96 hours post dose. To avoid any interference with natural hormones, promegestone was given between day 7 and 10 of the menstrual cycle. Clinical safety and tolerability were good. Most of the minor adverse events observed were estimated possibly linked to the study drug (menstrual disorders) because classically related to progestins therapy. In addition, no clinically relevant biological modifications were observed. There was a stereoselective metabolism of promegestone in favor of the 21S hydroxy-promegestone, the main circulating compound in plasma (AUC ratio 5/R of about 21). Levels of 21S hydroxy-promegestone are about twice greater than that of unchanged promegestone. The plasma levels of the second metabolite, i.e. 21 R hydroxy-promegestone are far below these of either promegestone and 21S hydroxy-promegestone. Promegestone, 215 hydroxy- and 21R hydroxy-promegestone are not excreted in urine. About 3% of the dose was recov-ered in urine as sulfo and/or glucuro-conjugate 21S hydroxy-promegestone and about 1% of the dose as sulfo and/or glucuro conjugate 21R hydroxy-promegestone.
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Further reading