Active clinical trials for "Infertility"

This study tests the hypothesis that controlled ovarian stimulation impairs endometrial receptivity in normal responders.

The purpose of this study is to compare two different ways to administer Letrozole to determine their effectiveness in blocking estrogen production during ovarian stimulation in patients with breast cancer prior to chemotherapy/radiotherapy so that oocytes or embryos can be cryopreserved and patients can possibly achieve a pregnancy after the treatment of breast cancer. During standard ovulation stimulation, the estrogen levels will exceed normal levels and may reach 10 times the normal level for a 2 week period. This may not be desirable in breast cancer patients. The study hopes to determine if the investigators can stimulate oocyte development in the conventional way and administer different doses of Letrozole as the oocytes develop, to keep estradiol levels low, increase the number of oocytes the investigators are able to recover, and improve the quality of those oocytes.

The objectives of this study were to study the pharmacokinetics, pharmacodynamics and safety of Org 36286 after a single subcutaneous administration in healthy females.

This is a prospective, open-label, multicenter, trial evaluating subject satisfaction and efficacy with follitropin alfa injection applied by Pen device compared with the subject's previous experience with injectable gonadotropins in oligoanovulatory infertile women undergoing ovulation induction

In vitro fertilization (IVF) is a common procedure used to assist couples who have difficulty conceiving a pregnancy. IVF is a process where oocytes (eggs) are retrieved from a woman's ovaries and fertilized with sperm in the laboratory. In order to maximize the number of oocytes that can be retrieved, a women undergoes ovarian stimulation with recombinant follicle stimulating hormone (FSH). Typically 6-20 oocytes are retrieved, but in some cases there is a limited response to the stimulation, producing a limited number of oocytes. This is called poor ovarian response. This study is designed to objectively compare two treatment regimens currently advocated in clinical practice, but never compared directly. The purpose is to assess ovarian response to starting treatment at the end of the preceding cycle may increase the number of developing oocytes.

OBJECTIVE: To compare the effectiveness of letrozole and clomiphene citrate (CC) in patients with anovulatory infertility. DESIGN: Open, prospective, randomized, parallel group, multicentric, comparative trial. SETTING: Out patient clinics of infertility centers in India. PATIENT(S): Fifty-five patients with anovulatory infertility were recruited. Twenty-seven patients (59 cycles) were given letrozole and twenty-eight patients (68 cycles) were given CC. Both drugs were given orally on days 3-7 of menstrual cycle. INTERVENTION(S): Letrozole, CC, ovulation induction, vaginal micronized progesterone, IUI.

Lifestyle modifications are successfully employed in polycystic ovarian syndrome (PCOS) improving menstrual cycles and fertility. Unfortunately, the compliance over the time is very low. Recently, we have showed a high adherence to structured exercise training (SET) program in women with PCOS. The current study will be aimed to compare the efficacy of the SET program with a diet program on the reproductive function in obese anovulatory infertile PCOS patients.

To study whether addition of human LH hormone (Luveris) during the final days of stimulation with recombinant FSH (Gonal-f) for controlled ovarian stimulation will be of benefit for patients undergoing in vitro fertilisation.

Laser-assisted intracytoplasmic sperm injection (ICSI) has been suggested as a more effective alterative to conventional ICSI when this method of insemination is indicated for patients undergoing in vitro fertilization (IVF). Laser-assisted ICSI differs from conventional ICSI in that a laser is used to drill a small hole through the hard outer coating surrounding an egg before the injection needle containing a single sperm is inserted into the egg. The hole eliminates compression of the egg that normally occurs with conventional ICSI, and thus may reduce the chance of damage. Laser-assisted ICSI is hypothesized to result in increased egg survival, and perhaps improved embryo quality, compared to conventional ICSI.

The purpose of our study was to conduct a placebo controlled, double-blind randomized trial in chronic oligoovulatory or anovulatory , hyperandrogenic, infertility patients comparing the effects of adjuvant metformin plus clomiphene citrate to clomiphene citrate plus placebo on pregnancy rates and ovulation rates. We hypothesized that combining metformin with clomiphene citrate would result in higher ovulation and pregnancy rates in hyperandrogenic women who have chronic oligoovulation or anovulation as the sole etiology for their infertility and who have unknown responsiveness to clomiphene citrate.