Cetrorelix Acetate

Generic Name: cetrorelix acetate

Over-the-Counter (OTC)

Brand Names:

Cetrotide

DESCRIPTION Cetrotide ® (cetrorelix acetate for injection) is a synthetic decapeptide with gonadotropin-releasing hormone (GnRH) antagonistic activity. Cetrorelix acetate is an analog of native GnRH with substitutions of amino acids at positions 1, 2, 3, 6, and 10.

Overview

DESCRIPTION Cetrotide ® (cetrorelix acetate for injection) is a synthetic decapeptide with gonadotropin-releasing hormone (GnRH) antagonistic activity. Cetrorelix acetate is an analog of native GnRH with substitutions of amino acids at positions 1, 2, 3, 6, and 10.

Uses

INDICATIONS AND USAGE Cetrotide ® (cetrorelix acetate for injection) is indicated for the inhibition of premature LH surges in women undergoing controlled ovarian stimulation.

Dosage

DOSAGE AND ADMINISTRATION 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) 0.25 mg may be administered subcutaneously once daily during the early- to mid-follicular phase. Cetrotide ® 0.25 mg is administered on either stimulation day 5 (morning or evening) or day 6 (morning) and continued daily until the day of hCG administration. When assessment by ultrasound shows a sufficient number of follicles of adequate size, hCG is administered to induce ovulation and final maturation of the oocytes.

Side Effects

ADVERSE REACTIONS The safety of Cetrotide ® (cetrorelix acetate for injection) in 949 patients undergoing controlled ovarian stimulation in clinical studies was evaluated. Women were between 19 and 40 years of age (mean: 32). 94.0% of them were Caucasian. Cetrotide ® was given in doses ranging from 0.1 mg to 5 mg as either a single or multiple dose. Table 3 shows systemic adverse events, reported in clinical studies without regard to causality, from the beginning of Cetrotide ® treatment until confirmation of pregnancy by ultrasound at an incidence ≥ 1% in Cetrotide ® treated subjects undergoing COS.

Interactions

Drug Interactions No formal drug interaction studies have been performed with Cetrotide ® .

Warnings

WARNINGS Cetrotide ® (cetrorelix acetate for injection) should be prescribed by physicians who are experienced in fertility treatment. Before starting treatment with Cetrotide ® , pregnancy must be excluded (see CONTRAINDICATIONS and PRECAUTIONS ). CONTRAINDICATIONS Cetrotide ® (cetrorelix acetate for injection) is contraindicated under the following conditions: Hypersensitivity to cetrorelix acetate, extrinsic peptide hormones or mannitol. Known hypersensitivity to GnRH or any other GnRH analogs. Known or suspected pregnancy, and lactation (see PRECAUTIONS ). Severe renal impairment

Pregnancy

Pregnancy (see CONTRAINDICATIONS ) Cetrotide ® is contraindicated in pregnant women. When administered to rats for the first seven days of pregnancy, cetrorelix acetate did not affect the development of the implanted conceptus at doses up to 38 μg/kg (approximately 1 times the recommended human therapeutic dose based on body surface area). However, a dose of 139 μg/kg (approximately 4 times the human dose) resulted in a resorption rate and a postimplantation loss of 100%.

Storage

Storage Store Cetrotide ® 0.25 mg refrigerated, 2ºC - 8ºC (36ºF - 46ºF). Store the packaged tray in the outer carton in order to protect from light.

Frequently Asked Questions

What is Cetrorelix Acetate used for?

INDICATIONS AND USAGE Cetrotide ® (cetrorelix acetate for injection) is indicated for the inhibition of premature LH surges in women undergoing controlled ovarian stimulation.

What are the side effects of Cetrorelix Acetate?

ADVERSE REACTIONS The safety of Cetrotide ® (cetrorelix acetate for injection) in 949 patients undergoing controlled ovarian stimulation in clinical studies was evaluated. Women were between 19 and 40 years of age (mean: 32). 94.0% of them were Caucasian. Cetrotide ® was given in doses ranging from 0.1 mg to 5 mg as either a single or multiple dose. Table 3 shows systemic adverse events, reported in clinical studies without regard to causality, from the beginning of Cetrotide ® treatment until confirmation of pregnancy by ultrasound at an incidence ≥ 1% in Cetrotide ® treated subjects undergoing COS.

Can I take Cetrorelix Acetate during pregnancy?

Pregnancy (see CONTRAINDICATIONS ) Cetrotide ® is contraindicated in pregnant women. When administered to rats for the first seven days of pregnancy, cetrorelix acetate did not affect the development of the implanted conceptus at doses up to 38 μg/kg (approximately 1 times the recommended human therapeutic dose based on body surface area). However, a dose of 139 μg/kg (approximately 4 times the human dose) resulted in a resorption rate and a postimplantation loss of 100%.

What are the important warnings for Cetrorelix Acetate?

WARNINGS Cetrotide ® (cetrorelix acetate for injection) should be prescribed by physicians who are experienced in fertility treatment. Before starting treatment with Cetrotide ® , pregnancy must be excluded (see CONTRAINDICATIONS and PRECAUTIONS ). CONTRAINDICATIONS Cetrotide ® (cetrorelix acetate for injection) is contraindicated under the following conditions: Hypersensitivity to cetrorelix acetate, extrinsic peptide hormones or mannitol. Known hypersensitivity to GnRH or any other GnRH analogs. Known or suspected pregnancy, and lactation (see PRECAUTIONS ). Severe renal impairment

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Medical Disclaimer

This drug information is for educational purposes only and should not replace professional medical advice. Drug information is sourced from the FDA National Drug Code Directory and Structured Product Labeling. Always consult with a healthcare provider before starting, stopping, or changing any medication.