Clinical trial NCT00697255
Conditions: Ovulation Induction
Keywords: Pharmacological effects of drugs Hormones Hormone Substitutes and Hormone Antagonists Pharmacological Actions Monofollicular growth Randomized Open-label Active-controlled
Sponsor: Organon and Co
Start date: 2007-05-15; Completion date: 2008-05-15
Enrollment: 8 participants; Allocation: RANDOMIZED; Intervention model: PARALLEL

Brief summary:
The primary objective of this trial is to evaluate whether a corifollitropin alfa (Org 36286) regimen applying a single or repeated dose of corifollitropin alfa followed by a low daily dose of Human Chorion Gonadotropin (hCG) or recombinant Follicular Stimulating Hormone (recFSH) can induce monofollicular growth (one follicle ≥18 mm and no other follicle ≥15 mm at day of bolus injection of hCG) in women with WHO group II anovulatory infertility.

Detailed description:
This trial will include two separate stages (Ia+Ib and II).

Stage Ia will be open-label and uncontrolled in a small cohort of women (n=5) to explore whether the intended dosing regimen of corifollitropin alfa followed by daily low dose recFSH provide an appropriate response in eligible participants meeting all inclusion and none of the exclusion criteria.

Stage Ib will be open-label and uncontrolled in a small cohort of women (n=5) to explore whether the intended dosing regimen of corifollitropin alfa followed by daily low dose hCG provide an appropriate response in eligible participants meeting all inclusion and none of the exclusion criteria.

Stage II is open-label and randomized (n=40) to evaluate whether the intended dosing regimen of corifollitropin alfa followed by low dose FSH (n=20) or hCG (n=20) provide an appropriate response in eligible participants meeting all inclusion and none of the exclusion criteria.

Arms: arm 1: Eligible participants will receive a subcutaneous (SC) injection of corifollitropin alfa (Stage 1a: 15mcg, Stage Ib/II: 30 mcg) the first, second, or third day after onset of a progestagen-induced withdrawal bleeding. If the follicle growth is insufficient, the participant will receive a second or third dose of corifollitropin alfa (Stage 1a: 15 mcg, Stage Ib/II: 20 mcg). As soon as the largest follicle reaches a size of ≥12 mm, the participant will start daily SC injections with FSH (Stage 1A: 50 IU, Stage II: 75 IU) the same day. A bolus injection of hCG (5000 IU) will be administered if at least one follicle is ≥18 mm and in total no more than two follicles ≥15 mm are observed. arm 2: Eligible participants will receive a SC injection of corifollitropin alfa (Stage Ia:15 mcg, Stage Ib/II: 30 mcg) the first, second or third day after onset of a progestagen-induced withdrawal bleeding. If the follicle growth is insufficient the participant will receive a second or third dose of corifollitropin alfa (Stage IA: 15 mcg, stage Ib/II: 20 mcg). As soon as the largest follicle reaches a size of ≥12 mm the participant will start daily SC injections with hCG (Stage Ib/II: 200 IU) the same day. A bolus injection of hCG (5000 IU) will be administered if at least one follicle is ≥18 mm and in total no more than two follicles ≥15 mm are observed.
Interventions: intervention 1: corifollitropin alfa intervention 2: recombinant Follicle Stimulating Hormone (recFSH) intervention 3: human Chorion Gonadotropin (hCG) intervention 4: hCG Bolus injection
Intervention descriptions: intervention 1: SC corifollitropin alfa on the 1st, 2nd or 3rd day after onset of a progestagen-induced withdrawal bleeding (Stage 1a: 15mcg, Stage Ib/II: 30 mcg). intervention 2: Daily injections of SC recFSH (50 IU/75 IU) administered as soon as the largest follicle reaches a size ≥12 mm 4 days after a corifollitropin alfa injection on stimulation day 5, 9 or 13. intervention 3: Daily injections of SC hCG (200 IU) administered as soon as the largest follicle reaches a size ≥12 mm 4 days after a corifollitropin alfa injection on stimulation day 5, 9 or 13. intervention 4: Bolus injection of SC hCG was administered to induce final oocyte maturation if at least one follicle is ≥18 mm and no more than two follicles ≥15 mm are observed.

Protocol documents: