Norgestrienone

Last updated
Norgestrienone
Norgestrienone.svg
Clinical data
Trade names Ogyline, 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 class Progestogen; Progestin; Androgen; Anabolic steroid
ATC code
Identifiers
  • (8S,13S,14S,17R)-17-ethynyl-17-hydroxy-13-methyl-1,2,6,7,8,14,15,16-octahydrocyclopenta[a]phenanthren-3-one
CAS Number
PubChem CID
ChemSpider
UNII
KEGG
CompTox Dashboard (EPA)
ECHA InfoCard 100.011.544 OOjs UI icon edit-ltr-progressive.svg
Chemical and physical data
Formula C20H22O2
Molar mass 294.394 g·mol−1
3D model (JSmol)
  • O=C4\C=C3/C(=C2/C=C\[C@]1([C@@H](CC[C@]1(C#C)O)[C@@H]2CC3)C)CC4
  • InChI=1S/C20H22O2/c1-3-20(22)11-9-18-17-6-4-13-12-14(21)5-7-15(13)16(17)8-10-19(18,20)2/h1,8,10,12,17-18,22H,4-7,9,11H2,2H3/t17-,18+,19+,20+/m1/s1 Yes check.svgY
  • Key:GVDMJXQHPUYPHP-FYQPLNBISA-N Yes check.svgY
   (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]

Contents

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 Tooltip Progesterone receptor AR Tooltip Androgen receptor ER Tooltip Estrogen receptor GR Tooltip Glucocorticoid receptor MR Tooltip Mineralocorticoid receptor SHBG Tooltip Sex hormone-binding globulin CBG Tooltip Corticosteroid binding globulin
Norethisterone 155–15643–45<0.12.7–2.80.2 ? ?
Norgestrienone63–6570<0.1111.8 ? ?
Levonorgestrel 17084–87<0.1140.6–0.9 ? ?
Gestrinone 75–7683–85<0.1, 3–10773.2 ? ?
Notes: Values are percentages (%). Reference ligands (100%) were progesterone for the PR Tooltip progesterone receptor, testosterone for the AR Tooltip androgen receptor, E2 for the ER Tooltip estrogen receptor, DEXA Tooltip dexamethasone for the GR Tooltip glucocorticoid receptor, aldosterone for the MR Tooltip mineralocorticoid receptor, DHT Tooltip dihydrotestosterone for SHBG Tooltip sex hormone-binding globulin, and cortisol for CBG Tooltip Corticosteroid-binding globulin. Sources: [14] [15] [16] [17]

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 Tooltip International Nonproprietary Name. [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]

Related Research Articles

<span class="mw-page-title-main">Progestogen (medication)</span> Medication producing effects similar to progesterone

A progestogen, also referred to as a progestagen, gestagen, or gestogen, is a type of medication which produces effects similar to those of the natural female sex hormone progesterone in the body. A progestin is a synthetic progestogen. Progestogens are used most commonly in hormonal birth control and menopausal hormone therapy. They can also be used in the treatment of gynecological conditions, to support fertility and pregnancy, to lower sex hormone levels for various purposes, and for other indications. Progestogens are used alone or in combination with estrogens. They are available in a wide variety of formulations and for use by many different routes of administration. Examples of progestogens include natural or bioidentical progesterone as well as progestins such as medroxyprogesterone acetate and norethisterone.

<span class="mw-page-title-main">Desogestrel</span> Medication

Desogestrel is a progestin medication which is used in birth control pills. It is also used in the treatment of menopausal symptoms in women. The medication is available and used alone or in combination with an estrogen. It is taken by mouth.

<span class="mw-page-title-main">Norethisterone acetate</span> Chemical compound

Norethisterone acetate (NETA), also known as norethindrone acetate and sold under the brand name Primolut-Nor among others, is a progestin medication which is used in birth control pills, menopausal hormone therapy, and for the treatment of gynecological disorders. The medication available in low-dose and high-dose formulations and is used alone or in combination with an estrogen. It is ingested orally.

<span class="mw-page-title-main">Norgestimate</span> Chemical compound

Norgestimate, sold under the brand names Ortho Tri-Cyclen and Previfem among others, is a progestin medication which is used in birth control pills for women and in menopausal hormone therapy. The medication is available in combination with an estrogen and is not available alone. It is taken by mouth.

<span class="mw-page-title-main">Gestrinone</span> Chemical compound

Gestrinone, sold under the brand names Dimetrose and Nemestran among others, is a medication which is used in the treatment of endometriosis. It has also been used to treat other conditions such as uterine fibroids and heavy menstrual bleeding and has been investigated as a method of birth control. Gestrinone is used alone and is not formulated in combination with other medications. It is taken by mouth or in through the vagina.

<span class="mw-page-title-main">Etynodiol diacetate</span> Chemical compound

Etynodiol diacetate, or ethynodiol diacetate, sold under the brand name Ovulen among others, is a progestin medication which is used in birth control pills. The medication is available only in combination with an estrogen. It is taken by mouth.

<span class="mw-page-title-main">Norethisterone</span> Progestin medication

Norethisterone, also known as norethindrone and sold under many brand names, is a progestin medication used in birth control pills, menopausal hormone therapy, and for the treatment of gynecological disorders. The medication is available in both low-dose and high-dose formulations and both alone and in combination with an estrogen. It is used by mouth or, as norethisterone enanthate, by injection into muscle.

<span class="mw-page-title-main">Gestodene</span> Progestin medication

Gestodene, sold under the brand names Femodene and Minulet among others, is a progestin medication which is used in birth control pills for women. It is also used in menopausal hormone therapy. The medication is available almost exclusively in combination with an estrogen. It is taken by mouth.

<span class="mw-page-title-main">Lynestrenol</span> Androgen and anabolic steroid

Lynestrenol, sold under the brand names Exluton and Ministat among others, is a progestin medication which is used in birth control pills and in the treatment of gynecological disorders. The medication is available both alone and in combination with an estrogen. It is taken by mouth.

<span class="mw-page-title-main">Ethisterone</span> Chemical compound

Ethisterone, also known as ethinyltestosterone, pregneninolone, and anhydrohydroxyprogesterone and formerly sold under the brand names Proluton C and Pranone among others, is a progestin medication which was used in the treatment of gynecological disorders but is now no longer available. It was used alone and was not formulated in combination with an estrogen. The medication is taken by mouth.

<span class="mw-page-title-main">Trestolone</span> Chemical compound

Trestolone, also known as 7α-methyl-19-nortestosterone (MENT), is an experimental androgen/anabolic steroid (AAS) and progestogen medication which has been under development for potential use as a form of hormonal birth control for men and in androgen replacement therapy for low testosterone levels in men but has never been marketed for medical use. It is given as an implant that is placed into fat. As trestolone acetate, an androgen ester and prodrug of trestolone, the medication can also be given by injection into muscle.

<span class="mw-page-title-main">Dienogest</span> Chemical compound

Dienogest, sold under the brand name Visanne among others, is a progestin medication which is used in birth control pills and in the treatment of endometriosis. It is also used in menopausal hormone therapy and to treat heavy periods. Dienogest is available both alone and in combination with estrogens. It is taken by mouth.

<span class="mw-page-title-main">Metribolone</span> Chemical compound

Metribolone is a synthetic and orally active anabolic–androgenic steroid (AAS) and a 17α-alkylated nandrolone (19-nortestosterone) derivative which was never marketed for medical use but has been widely used in scientific research as a hot ligand in androgen receptor (AR) ligand binding assays (LBAs) and as a photoaffinity label for the AR. More precisely, metribolone is the 17α-methylated derivative of trenbolone. It was investigated briefly for the treatment of advanced breast cancer in women in the late 1960s and early 1970s, but was found to produce signs of severe hepatotoxicity at very low dosages, and its development was subsequently discontinued.

<span class="mw-page-title-main">Promegestone</span> Chemical compound

Promegestone, sold under the brand name Surgestone, is a progestin medication which is used in menopausal hormone therapy and in the treatment of gynecological disorders. It is taken by mouth.

<span class="mw-page-title-main">Demegestone</span> Chemical compound

Demegestone, sold under the brand name Lutionex, is a progestin medication which was previously used to treat luteal insufficiency but is now no longer marketed. It is taken by mouth.

<span class="mw-page-title-main">Noretynodrel</span> Chemical compound

Noretynodrel, or norethynodrel, sold under the brand name Enovid among others, is a progestin medication which was previously used in birth control pills and in the treatment of gynecological disorders but is now no longer marketed. It was available both alone and in combination with an estrogen. The medication is taken by mouth.

<span class="mw-page-title-main">Quingestanol acetate</span> Chemical compound

Quingestanol acetate, sold under the brand names Demovis and Pilomin among others, is a progestin medication which was used in birth control pills but is no longer marketed. It is taken by mouth.

<span class="mw-page-title-main">Norgesterone</span> Chemical compound

Norgesterone, also known as norvinodrel or vinylestrenolone and sold under the brand name Vestalin, is a progestin medication which was formerly used in birth control pills for women but is now no longer marketed. It was used in combination with the estrogen ethinylestradiol. It is taken by mouth.

<span class="mw-page-title-main">Methylestradiol</span> Chemical compound

Methylestradiol, sold under the brand names Ginecosid, Ginecoside, Mediol, and Renodiol, is an estrogen medication which is used in the treatment of menopausal symptoms. It is formulated in combination with normethandrone, a progestin and androgen/anabolic steroid medication. Methylestradiol is taken by mouth.

<span class="mw-page-title-main">Dimethyltrienolone</span> Anabolic–androgenic steroid

Dimethyltrienolone is a synthetic, orally active, and extremely potent anabolic–androgenic steroid (AAS) and 17α-alkylated 19-nortestosterone (nandrolone) derivative which was never marketed for medical use. It has among the highest known affinity of any AAS for the androgen receptors, and has been said to be perhaps the most potent AAS to have ever been developed.

References

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  3. ↑ Diaz S, Pavez M, Quinteros E, Diaz J, Robertson DN, Croxatto HB (October 1978). "Clinical trial with subdermal implants containing norgestrienone". Contraception. 18 (4): 429–440. doi:10.1016/0010-7824(78)90027-6. PMID   720075.
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  6. ↑ McGuire JL (2000). Pharmaceuticals, 4 Volume Set. Wiley. p. 1580,1599. ISBN   978-3-527-29874-7.
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