Active clinical trials for "Anovulation"

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.

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.

Clomiphene citrate (CC) is the first-line therapy for infertile women with polycystic ovary syndrome (PCOS). Unfortunately, at least 20% of PCOS results are not responsive to CC. Structured exercise training (SET) and diet has been successfully employed to restore ovarian function and to improve reproductive outcomes in obese and overweight women with PCOS. The current study was aimed to test the hypothesis that a short-term SET program plus diet intervention can improve the ovarian response to CC in CC-resistant PCOS patients.

Letrozole is considered an established treatment for ovulation induction.The most common protocol is daily dose of 2.5-7.5 mg starting day 3-5 of the cycle for 5 days.Another described protocol is single high dose 20mg Letrozole given on day 3 of the cycle. Our aim is to compare the single high dose Letrozole protocol to daily low dose protocol.

The purpose of this study is to investigate and compare the safety and efficacy of various doses of the aromatase inhibitor (anastrozole) versus clomiphene citrate in stimulating follicular growth and ovulation in infertile women with ovulatory dysfunction.

This is a prospective self-controlled clinical study. Women with clomiphene Citrate failure with thin endometrium less than 7 millimeters for at least 3 cycles will be selected (N = 30). Patients will receive 2 ovarian stimulation cycles with Clomiphene citrate (CC) 100 mg/ day for 5 days from cycle day 3. A control cycle (CC only cycle) woman will continue on CC alone plus cervical irrigation of cervix with 1 ml of 0.9% normal saline at cycle day 8 and 10 to assure patient-blinded method. The study group, the same will be done plus the intrauterine infusion of Autologous platelet-rich plasma (PRP) in 8th and 10th days of the cycle. In both groups, the endometrial thickness and Power Doppler evaluation of their endometrial and sub-endometrial blood flow will be measured on the day of Human Chorionic Gonadotropin (HCG) administration.

The purpose of this study is to compare the length of time to achieve ovulation and pregnancy with a traditional protocol administration of clomiphene citrate versus a stair step administration. Our hypothesis is by using a stair-step approach in which a period is not induced between administrations of escalating doses of clomiphene citrate, the time to ovulation and pregnancy may be reduced.

Ovulation disorders are a common cause of infertility in women. Most of these women can be classified as World Health Organization (WHO) Group II anovulatory patients as they have irregular or absent menstrual cycles but normal serum concentrations of follicle stimulation hormone (FSH) and estradiol. The purpose of this study is to optimize the low-dose-step-up protocol traditionally used for ovulation induction with follicle-stimulating hormone (FSH) in women with anovulatory infertility WHO Group II. Previous studies have established that menstrual cycle history, mean ovarian volume and BMI are significant predictors of FSH threshold dose in women with anovulatory infertility WHO Group II undergoing ovulation induction (Nyboe Andersen et al., 2008). A FSH dosage nomogram has been constructed based on these variables. The aim of this study is to evaluate the clinical use of the nomogram in order to test the use of the variables to determine whether an individualized starting dose of FSH can be used for ovulation induction in anovulatory patients. It is the hypothesis that an individualized starting dose of gonadotrophin will minimize the disadvantages of the treatment and that the stimulation period of the individualized nomogram-based treatment will be 25% shorter than observed in the standard protocol. The primary endpoint is the proportion of patients who reach the criteria for hCG-administration within 14 days of Menopur stimulation. The results of the study will be compared with the data obtained in the Menopur Ovulation Induction Trial (Platteau et al., 2006).

Context: Metformin administration in women with polycystic ovary syndrome (PCOS) improves hormonal and metabolic patterns with beneficial effects in terms of reproductive outcomes and intermediate cardiovascular disease risk factors. Furthermore, reduced folate and vitamin B12, and increased homocysteine (Hcy) levels have been found in type-2 diabetes mellitus patients treated with metformin. Objective: To evaluate if metformin administration exerts any effects on Hcy levels, and if folate supplementation may improve endothelial structure and function in PCOS patients.

The purpose of this experiment is to investigate whether the dependence of luteinizing hormone pulsatility on energy availability declines during adolescence.