| Primary information |
|---|
| ThPP ID | Th1223 |
| Therapeutic Peptide/Protein Name | Chorionic Gonadotropin (Human) |
| Sequence | Alpha Chain: APDVQDCPECTLQENPFFSQPGAPILQCMGCCFSRAY view full sequnce in fasta |
| Functional Classification | Ia |
| Molecular Weight | NA |
| Chemical Formula | NA |
| Isoelectric Point | NA |
| Hydrophobicity | NA |
| Melting Point (℃) | NA |
| Half Life | NA |
| Description | Human chorionic gonadotropin (HCG), a polypeptide hormone produced by the human placenta. Endogenously produced HCG interacts with the LHCG receptor of the ovary and promotes the maintenance of the corpus luteum during the beginning of pregnancy. This allows the corpus luteum to continuously secrete the hormone progesterone during the first trimester, which is required for maintenance of the uterus and prevents menstruation. In males, HCG also stimulates the production of gonadal steroid hormones by stimulating the interstitial cells (Leydig cells) of the testis to produce androgens. HCG is composed of an alpha and a beta sub-unit. The alpha sub-unit is essentially identical to the alpha sub units of the human pituitary gonadotropins, luteinizing hormone (LH) and follicle-stimulating hormone (FSH), as well as to the alpha sub-unit of human thyroid-stimulating hormone (TSH), while the beta sub units of these hormones differ in amino acid sequence. As a drug product, chorionic gonadotropin is a highly purified pyrogen-free preparation obtained from the urine of pregnant females. |
| Indication/Disease | For the treatment of prepubertal cryptorchidism (not due to anatomical obstruction), for the treatment of selected cases of hypogonadotropic hypogonadism (hypogonadism secondary to a pituitary deficiency) in males and for the induction of ovulation and pregnancy in the anovulatory, infertile woman in whom the cause of anovulation is secondary and not due to primary ovarian failure, and who has been appropriately pretreated with human menotropins. |
| Pharmacodynamics | he action of HCG is virtually identical to that of pituitary LH, although HCG appears to have a small degree of FSH activity as well. It stimulates production of gonadal steroid hormones by stimulating the interstitial cells (Leydig cells) of the testis to produce androgens and the corpus luteum of the ovary to produce progesterone. |
| Mechanism of Action | NA |
| Toxicity | NA |
| Metabolism | NA |
| Absorption | NA |
| Volume of Distribution | NA |
| Clearance | NA |
| Categories | Hormones |
| Patents Number | US6706681 |
| Date of Issue | 16/03/01 |
| Date of Expiry | 16/03/21 |
| Drug Interaction | NA |
| Target | Lutropin-choriogonadotropic hormone receptor |
| Information of corresponding available drug in the market |
|---|
| Brand Name | Ovidrel |
| Company | Emd Serono |
| Brand Discription | Ovidrel® PreFilled Syringe (choriogonadotropin alfa injection) is a sterile liquid preparation of choriogonadotropin alfa (recombinant human Chorionic Gonadotropin, r-hCG). Choriogonadotropin alfa is a water soluble glycoprotein consisting of two non-covalently linked subunits - designated α and β - consisting of 92 and 145 amino acid residues, respectively, with carbohydrate moieties linked to ASN-52 and ASN-78 (on alpha subunit) and ASN-13, ASN-30, SER-121, SER-127, SER-132 and SER-138 (on beta subunit). The primary structure of the α - chain of r-hCG is identical to that of the α - chain of hCG, FSH and LH. The glycoform pattern of the α - subunit of r-hCG is closely comparable to urinary derived hCG (u-hCG), the differences mainly being due to the branching and sialylation extent of the oligosaccharides. The β - chain has both O- and N-glycosylation sites and its structure and glycosylation pattern are also very similar to that of u-hCG |
| Prescribed for | It is indicated for the induction of final follicular maturation and early luteinization in infertile women who have undergone pituitary desensitization and who have been appropriately pretreated with follicle stimulating hormones as part of an Assisted Reproductive Technology (ART) program such as in vitro fertilization and embryo transfer. It is also indicated for the induction of ovulation (OI) and pregnancy in anovulatory infertile patients in whom the cause of infertility is functional and not due to primary ovarian failure. |
| Chemical Name | NA |
| Formulation | Each Ovidrel® PreFilled Syringe is filled with 0.515 mL containing 257.5 μg of choriogonadotropin alfa, 28.1 mg mannitol, 505 μg 85% O-phosphoric acid, 103 μg L-methionine, 51.5 μg Poloxamer 188, Sodium Hydroxide (for pH adjustment), and Water for Injection to deliver 250 μg of choriogonadotropin alfa in 0.5 mL. The pH of the solution is 6.5 to 7.5. |
| Physcial Appearnce | Injection, solution |
| Route of Administration | Subcutaneous |
| Recommended Dosage | Ovidrel® PreFilled Syringe 250 μg should be administered one day following the last dose of the follicle stimulating agent. Ovidrel® PreFilled Syringe should not be administered until adequate follicular development is indicated by serum estradiol and vaginal ultrasonography. |
| Contraindication | Ovidrel® PreFilled Syringe (choriogonadotropin alfa injection) is contraindicated in women who exhibit:Prior hypersensitivity to hCG preparations or one of their excipients.Primary ovarian failure.Uncontrolled thyroid or adrenal dysfunction.An uncontrolled organic intracranial lesion such as a pituitary tumor.Abnormal uterine bleeding of undetermined origin (see “Selection of Patientsâ€).Ovarian cyst or enlargement of undetermined origin (see “Selection of Patientsâ€).Sex hormone dependent tumors of the reproductive tract and accessory organs.Pregnancy. |
| Side Effects | Redness or pain at the injection site, mild abdominal pain, mood changes, or mild nausea/vomiting may occur. |
| Useful Link | http://www.rxlist.com/ovidrel-drug.htm , https://www.drugs.com/cdi/ovidrel.html , http://www.webmd.com/drugs/2/drug-20307-503/ovidrel-subcutaneous/choriogonadotropin-alfa-injection---prefilled-syringe-pen/details#uses |
| PubMed ID | 12928375, 10636378 |
| 3-D Structure | N.A. |