Stereochemistry | ABSOLUTE |
Molecular Formula | C70H92ClN17O14 |
Molecular Weight | 1431.038 |
Optical Activity | UNSPECIFIED |
Defined Stereocenters | 10 / 10 |
E/Z Centers | 0 |
Charge | 0 |
SHOW SMILES / InChI
SMILES
CC(C)C[C@H](NC(=O)[C@@H](CCCNC(N)=O)NC(=O)[C@H](CC1=CC=C(O)C=C1)NC(=O)[C@H](CO)NC(=O)[C@@H](CC2=CN=CC=C2)NC(=O)[C@@H](CC3=CC=C(Cl)C=C3)NC(=O)[C@@H](CC4=CC5=CC=CC=C5C=C4)NC(C)=O)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N6CCC[C@H]6C(=O)N[C@H](C)C(N)=O
InChI
InChIKey=SBNPWPIBESPSIF-MHWMIDJBSA-N
InChI=1S/C70H92ClN17O14/c1-39(2)31-52(61(94)82-51(15-9-28-77-69(73)74)68(101)88-30-10-16-58(88)67(100)79-40(3)59(72)92)83-60(93)50(14-8-29-78-70(75)102)81-63(96)54(34-43-20-25-49(91)26-21-43)86-66(99)57(38-89)87-65(98)56(36-45-11-7-27-76-37-45)85-64(97)55(33-42-18-23-48(71)24-19-42)84-62(95)53(80-41(4)90)35-44-17-22-46-12-5-6-13-47(46)32-44/h5-7,11-13,17-27,32,37,39-40,50-58,89,91H,8-10,14-16,28-31,33-36,38H2,1-4H3,(H2,72,92)(H,79,100)(H,80,90)(H,81,96)(H,82,94)(H,83,93)(H,84,95)(H,85,97)(H,86,99)(H,87,98)(H4,73,74,77)(H3,75,78,102)/t40-,50-,51+,52+,53-,54+,55-,56-,57+,58+/m1/s1
Molecular Formula | C70H92ClN17O14 |
Molecular Weight | 1431.038 |
Charge | 0 |
Count |
MOL RATIO
1 MOL RATIO (average) |
Stereochemistry | ABSOLUTE |
Additional Stereochemistry | No |
Defined Stereocenters | 10 / 10 |
E/Z Centers | 3 |
Optical Activity | UNSPECIFIED |
Cetrorelix is a synthetic decapeptide with gonadotropin-releasing hormone (GnRH) antagonistic activity. GnRH induces the production and release of luteinizing hormone (LH) and follicle stimulating hormone (FSH) from the gonadotrophic cells of the anterior pituitary. Due to a positive estradiol (E2) feedback at midcycle, GnRH liberation is enhanced resulting in an LH-surge. This LH-surge induces the ovulation of the dominant follicle, resumption of oocyte meiosis and subsequently luteinization as indicated by rising progesterone levels. Cetrorelix competes with natural GnRH for binding to membrane receptors on pituitary cells and thus controls the release of LH and FSH in a dose-dependent manner. Cetrorelix binds to the gonadotropin releasing hormone receptor and acts as a potent inhibitor of gonadotropin secretion. It competes with natural GnRH for binding to membrane receptors on pituitary cells and thus controls the release of LH and FSH in a dose-dependent manner. Cetrorelix is marketed primarily under the brand name Cetrotide. Cetrotide (cetrorelix acetate for injection) is indicated for the inhibition of premature LH surges in women undergoing controlled ovarian stimulation.
Originator
Approval Year
Doses
Overview
CYP3A4 | CYP2C9 | CYP2D6 | hERG |
---|---|---|---|
OverviewOther
Other Inhibitor | Other Substrate | Other Inducer |
---|---|---|
Drug as perpetrator
Drug as victim
Sourcing
Sample Use Guides
Ovarian stimulation therapy with gonadotropins (FSH, hMG) is started on cycle Day 2
or 3. The dose of gonadotropins should be adjusted according to individual response.
Cetrotide (cetrorelix acetate for injection) may be administered subcutaneously either
once daily (0.25 mg dose) or once (3 mg dose) during the early- to mid-follicular phase.
In the single dose regimen, 3 mg of Cetrotide (Cetrorelix) is administered when the serum estradiol
level is indicative of an appropriate stimulation response, usually on stimulation day 7
(range day 5-9). If hCG has not been administered within four days after injection of
Cetrotide 3 mg, Cetrotide 0.25 mg should be administered once daily until the day of
hCG administration.
In the multiple dose regimen, 0.25 mg of Cetrotide is administered on either stimulation
day 5 (morning or evening) or day 6 (morning) and continued daily until the day of hCG
administration.
Route of Administration:
Other