A Study to Evaluate Safety and Efficacy of Recombinant Human Luteinizing Hormone (r-hLH) Compared With Urinary Human Chorionic Gonadotrophin (u-hCG) to Trigger Ovulation in Infertile Women

Daily r-hFSH treatment will be administered subcutaneously at a starting dose according to the site's standard practice from Day 3-5 of menstrual cycle up to follicular development or 28 days. Dose can be altered according to ovarian response (reduced to 75 IU/day; increased to 225 IU/day).

Ovulation triggering will be performed using a single injection of r-hLH injection subcutaneously at a dose of 825 or 2750 or 5500 or 11,000 or 22,000 IU as soon as follicles satisfy the criteria for follicular development, that is at least 1 follicle with diameter \>= 18 mm, not more than 5 follicles with diameter \>= 15 mm and with E2 levels less than 9000 picomoles per liter (pmol/L).

Ovulation triggering will be performed using a single injection of 5000 IU of u-hCG as soon as follicles satisfy the criteria for follicular development, that is at least 1 follicle with diameter \>= 18 mm, not more than 5 follicles with diameter \>= 15 mm and with E2 levels less than 9000 picomoles per liter (pmol/L).