Recombinant FSH Investigation in the Treatment of Infertility With Assisted Reproductive Technology (ART) (RITA-1)

Inclusion Criteria: * Informed Consent Documents signed prior to any trial-related procedure. * In good physical and mental health in the judgement of the investigator. * Pre-menopausal females between the ages of 18 and 34 years. The participants must be at least 18 years (including the 18th birthday) when they sign the informed consent and no more than 34 years (up to the day before the 35th birthday) at the time of randomization. * Body mass index (BMI) between 17.5 and 38.0 kg/m2 (both inclusive) at screening. * Infertile women diagnosed with tubal infertility, unexplained infertility, endometriosis stage I/II or with partners diagnosed with male factor infertility, eligible for in vitro fertilization (IVF) and/or intracytoplasmic sperm injection (ICSI) using fresh or frozen ejaculated sperm from male partner or sperm donor. * Documented history of infertility for at least 12 months before randomization (not applicable in case of tubal or severe male factor infertility, or when the use of donor sperm is indicated). * Regular menstrual cycles of 24-35 days (both inclusive). * Hysterosalpingography, hysteroscopy or saline infusion sonography, documenting a uterus consistent with expected normal function (e.g. no evidence of clinically interfering uterine fibroids defined as submucous fibroids of any size or intramural fibroids larger than 3 cm in diameter, no polyps and no congenital structural abnormalities which are associated with a reduced chance of pregnancy) at scree…