Corifollitropin alfa

Subcutaneous
Ovarian stimulation regimens for assisted reproduction in infertility

Ovarian, breast, uterine, pituitary, hypothalamic tumours; abnormal vaginal bleeding, primary ovarian failure, enlarged ovaries, ovarian cyst, history of ovarian hyperstimulation syndrome (OHSS); previous controlled ovarian stimulation (COS) cycle yielding >30 follicles measuring ≥11 mm; >20 basal antral follicle count, uterine fibroid tumour, reproductive organ malformation, polycystic ovarian syndrome (PCOS). Pregnancy and lactation.

Patient w/ risk factors for thromboembolic events (e.g. family history, severe obesity, thrombophilia); history of multiple infertility treatment; history of ovarian torsion, previous or current ovarian cysts, risk factor for high ovarian response. Renal impairment.

Significant: Ovarian torsion, multiple pregnancies and births, ectopic pregnancies, congenital malformations, ovarian and other reproductive system neoplasms, thromboembolic events.
Nervous: Headache, dizziness, fatigue.
GI: Nausea.
Genitourinary: Pelvic discomfort/pain.
Endocrine: Breast tenderness.
Potentially Fatal: Severe OHSS.

This drug may cause dizziness, if affected, do not drive or operate machinery.

Assess infertility prior to treatment. Monitor for signs of OHSS in patients receiving 1st cycle of treatment.

May cause false +ve HCG pregnancy test.

Description: Corifollitropin alfa is a long acting modified recombinant FSH agonist. It initiates and sustains follicular growth for 1 wk. This is achieved by adding a carboxy-terminal peptide of β-subunit of HCG to the β-chain of human FSH.
Pharmacokinetics:
Absorption: Bioavailability: 58%. Time to peak plasma concentration: 44 hr.
Distribution: Distributed mainly to ovaries and kidneys. Volume of distribution: 9.2 L.
Excretion: Mainly via urine. Elimination half-life: 70 hr.

Store between 2-8°C. Do not freeze.
Any unused portions should be disposed of in accordance w/ local requirements.

Trophic Hormones & Related Synthetic Drugs

G03GA09 - corifollitropin alfa ; Belongs to the class of gonadotropins. Used as ovulation stimulants.

Buckingham R (ed). Corifollitropin Alfa. Martindale: The Complete Drug Reference [online]. London. Pharmaceutical Press. https://www.medicinescomplete.com. Accessed 04/09/2017.

Joint Formulary Committee. Corifollitropin Alfa. British National Formulary [online]. London. BMJ Group and Pharmaceutical Press. https://www.medicinescomplete.com. Accessed 04/09/2017.