Hydroxyprogesterone heptanoate (OHPH), also known as hydroxyprogesterone enanthate (OHPE) and sold under the brand names H.O.P., Lutogil A.P., and Lutogyl A.P. among others, is a progestin medication used for progestogenic indications.[1][2][3][4] It has been formulated both alone and in together with estrogens, androgens/anabolic steroids, and other progestogens in several combination preparations (brand names Tocogestan, Trioestrine Retard, and Triormon Depositum).[4][5][6][7][8][9][10] OHPH is given by injection into muscle at regular intervals.[11][9]
 | |
| Clinical data | |
|---|---|
| Trade names | H.O.P, Hydroxyprogesterone, Lutogil A.P., Lutogyl A.P., others |
| Other names | OHPH; Hydroxyprogesterone enanthate; OHPE; 17α-Hydroxyprogesterone heptanoate; 17α-Hydroxyprogesterone heptylate; 17α-Hydroxypregn-4-ene-3,20-dione 17α-heptanoate; 17α-Heptyloylpregn-4-ene-3,20-dione |
| Routes of administration | Intramuscular injection |
| Drug class | Progestogen; Progestin; Progestogen ester |
| ATC code | |
| Identifiers | |
| |
| CAS Number |
|
| PubChem CID | |
| ChemSpider | |
| UNII | |
| CompTox Dashboard (EPA) | |
| ECHA InfoCard | 100.022.724 |
| Chemical and physical data | |
| Formula | C28H42O4 |
| Molar mass | 442.640 g·mol−1 |
| 3D model (JSmol) | |
| |
| |
OHPH is a progestin, or a synthetic progestogen, and hence is an agonist of the progesterone receptor, the biological target of progestogens like progesterone.[12][13][14] It appears to have similar pharmacology to that of the closely related medication hydroxyprogesterone caproate (OHPC).[15][16][17]
OHPH was first described by 1954[16] and was introduced for medical use by 1957.[6] It has been used clinically in France and Monaco in the past but is no longer marketed.[2][3][4]
Medical uses
OHPH is a progestogen and was used in situations in which progestogens were indicated.[12][13][14]
Available forms
OHPH was provided as a 125 mg/1 mL oil solution for use by intramuscular injection.[3][11] In addition to single-drug preparations, OHPH has also been used in a number of multi-drug formulations.[4][5][6][7][8][9][10] It was used in Tocogestan, a combination of 50 mg progesterone, 200 mg OHPH, and 250 mg α-tocopherol palmitate (vitamin E) in oil solution for use by intramuscular injection.[18][4][5] It was also used in Triormon Depositum (estradiol dibutyrate, testosterone caproate, and OHPH) and Trioestrine Retard (estradiol diundecylate, testosterone cyclohexylpropionate, and OHPH).[6][7] OHPH was a component of the experimental preparation Trophobolene (or Trophoboline), which also contained estrapronicate (estradiol nicotinate propionate) and nandrolone undecanoate, as well.[8][9][10]
Pharmacology
Pharmacodynamics
OHPH is a progestin, or a synthetic progestogen, and hence is an agonist of the progesterone receptor, the biological target of progestogens like progesterone.[15][12][13][14] The progestogenic potency of OHPH in the uterus is equal to or greater than that of progesterone when administered by subcutaneous injection in animals.[15][16][17] Its potency in animals likewise appears to be similar to that of hydroxyprogesterone caproate.[15][16][17]
Pharmacokinetics
OHPH shows a pronounced depot effect when administered by subcutaneous injection in animals, similarly to the closely related medication hydroxyprogesterone caproate.[15][16] The oral activity of OHPH in animals does not appear to have been assessed.[15]
Chemistry
OHPH, also known as hydroxyprogesterone enanthate (OHPE),[19] as well as 17α-hydroxyprogesterone heptanoate or 17α-hydroxypregn-4-ene-3,20-dione 17α-heptanoate, is a synthetic pregnane steroid and a derivative of progesterone and 17α-hydroxyprogesterone.[1][2] It is a progestogen ester; specifically, it is the C17α heptanoate (enanthate) ester of 17α-hydroxyprogesterone.[1][2] Analogues of OHPH include the more well-known medications hydroxyprogesterone acetate and hydroxyprogesterone caproate (hydroxyprogesterone hexanoate).[1][2] The C3 benzilic acid hydrazone of OHPH, hydroxyprogesterone heptanoate benzilic acid hydrazone (OHPHBH), is known and has been studied in animals.[20][21] In terms of chemical structure, OHPH is very similar to hydroxyprogesterone caproate, differing from it only in having one additional carbon in its fatty acid ester chain.[1][2]
History
OHPH was first described, along with hydroxyprogesterone caproate and hydroxyprogesterone acetate, by Karl Junkmann of Schering AG in 1954.[16][19] It was introduced for medical use by 1957.[6] OHPH was commercialized by Roussel and Théramex, and has been used clinically in France and Monaco but is no longer marketed.[2][3][4]
Society and culture
Brand names
OHPH has been marketed alone under a number of brand names including H.O.P, Hydroxyprogesterone, Lutogil A.P., and Lutogyl A.P.[1][2][3][4]
Availability
OHPH was previously marketed in France and Monaco but is no longer available.[2][3][22]