View clinical trials related to Infertility.
Filter by:Women with polycystic ovary syndrome (PCOS) can suffer from infertility because they do not produce an egg each month, resulting in irregular periods. As a result, these women often need a medication called clomiphene citrate (clomiphene) to induce ovulation. A traditional 'clomiphene protocol' begins with a short course of progestin treatment to bring on a period (termed a 'withdrawal bleed') before starting the clomiphene medication. Newer evidence, however, has suggested that this progestin-induced shedding of the uterine lining (i.e., withdrawal bleed) may decrease the chances of pregnancy. The purpose of our study is to determine whether withdrawal bleeding has an impact on pregnancy rates for patients with PCOS undergoing a clomiphene cycle. It is hypothesized that patients who undergo ovulation induction with clomiphene citrate without prior endometrial shedding will have higher clinical pregnancy rates than those who begin with a progestin-induced withdrawal bleed.
Preimplantation genetic diagnosis (PGS) is a technique that allow us to improve the results of assisted reproduction techniques through the selection of embryos free of chromosomal abnormalities. At present, it has not been proved that the usage of PGS really improves the live birth rate in IVF cycles. However, it has been stated that the reason of not having better results when using PGS is that the methodology applied is not adequate. Several authors propose that the optimal methodology for PGS includes the application of comparative genomic hybridization (CGH) arrays for genetic testing and carrying out embryo biopsy at the blastocyst stage. Nevertheless, most IVF centres still applies the day 3 embryo biopsy as a daily routine. Despite this fact, there is a gradual transition towards the usage of blastocyst-stage biopsy instead of day 3 biopsy. The purpose of this clinical study is analysing the results of the IVF cycles with embryo biopsy for PGS. Live birth rates and other parameters as the pregnancy and implantation rates together with embryo quality will be analysed and compared between two groups of patients undergoing IVF cycles with PGS. In one group the biopsy will be applied in day 3 of the embryo development, while in the other group the embryo biopsy will be fulfilled at the blastocyst stage.
This study is designed to evaluate the potential benefit in pregnancy rates produced by an endometrial scratching made in an IVF cycle prior to embryo transfer in patients with donated oocytes.
The woman fertility decrease with the age and there is a closely link with the ovarian reserve, the number of available eggs in the ovaries. Therefore, it is important to evaluate the ovarian reserve with specific marker to have a better prediction of the response of the in vitro fertilization treatment and to have a better rate of pregnancy. Until now, a lot of clinical criteria (age, duration of the infertility, number of antral follicles) and biological (FSH, Oestradiol, Inhibin B, EFFORT test, number of the eggs at the retrieval day) was suggested to help for the estimation of the ovarian reserve. Since couple of years, the anti-müllerian hormone (AMH) is recognize to be one of the best ovarian reserve marker, it corresponding the number of antral follicles, it is more sensitive and predictive. Moreover, during the In-Vitro Fertilization, the anti-müllerian hormone can provide the weak responds at the stimulation and the reverse, the risk of excessive responds (hyperstimulation). To choose the gonadotropin doses to administrate (stimulation ovarian hormone) during an In-Vitro Fertilization protocol, we need to know the anti-müllerian hormone dosage. However, if the anti-müllerian hormone is recognize to evaluate the quantity of available eggs in the ovaries, his role to determine the quality of these eggs still discussed. The goal of this study is to verify if the serum anti-müllerian hormone (blood) is a good indicator for the quality of the reserve ovarian evaluating the impact of anti-müllerian hormone rate on the pregnancy rate and implantation rate, during stimulate In-Vitro Fertilization protocol.
This study is aimed to evaluate the use of a closed device for storage of vitrified oocytes.
The (motile sperm organelle morphology examination) MSOME allows the detection of sperm vacuoles that seems to be related to sperm DNA damage. The investigators hypothesized that couples with unexplained infertility could benefit from the injection of spermatozoa selected under high-magnification (x6600)
This study will be a 6-month intervention that is examining how different dietary approached may be useful for women with Polycystic Ovarian Syndrome (PCOS) who are attempting pregnancy, particularly by measuring changes in weight. Participants will be randomly assigned to following one of two dietary approaches for weight loss: 1) a low-calorie approach to weight loss (reducing caloric intake by approximately 500 calories per day) or 2) a low-fat, low-glycemic index vegan diet. A vegan diet is one that does not contain any animal products (no meat, fish, poultry, eggs, or dairy) but emphasizes plant-based foods, such as fruits, vegetables, whole grains, and legumes/beans. In addition, this diet will be low-glycemic index, which means the consumer will be asked to favor foods that don't cause a quick rise in blood sugar (for example, favoring oatmeal over cornflakes for breakfast). Participants will receive counseling and supporting materials on the dietary approach the participants are assigned to follow. Both diets are safe and have shown to be effective ways to assist with achieving a healthy weight. The investigators hypothesize that both groups will see improvements in weight and fertility with possible greater improvements seen among participants in the vegan group.
To provide a novel fertility preservation option for patients facing a fertility threatening cancer diagnosis or treatment regimen by establishing an ovarian tissue cryopreservation program. To determine if ovarian tissue cryopreservation provides women with a useful, successful option for fertility preservation The hypothesis is that ovarian tissue cryopreservation for fertility preservation provides an alternative option for fertility preservation.
The results of studies conducted until now does not determine what the best way to treat infertility in the first line with patients with Polycystic ovary syndrome (PCOS). This study objective is to determine the best treatment for such patients. The long-term consequence health of women with PCOS are multiple. The woman with PCOS has a risk of developing metabolic diseases, heart diseases, diabetes Type II or anovulatory infertility. The insulin resistance plays an important role in all this medical condition. Clomiphene Citrate (CC) remains the first line treatment to induce ovulation in women with PCOS and anovulatory infertility.
Selecting one or two IVF embryos with the highest potential to implant is extremely important for the success of the treatment- obtaining pregnancies and avoiding multi-fetal gestations. The currently used IVF embryo grading method is based solely on embryo morphology (cleavage rate and fragmentation) just before the transfer, which is not very well correlated with the implantation potential of each embryo. Oocyte quality and adequacy are the most important factors determining the biological quality and implantation potential of the embryo. It impossible to grade oocytes using plain optical systems, other than maturity and gross anomalies. Polscope systems allow to visualize intra ooplasmic structures and determine their retardance, as well as that of the Zona Pellucida. The investigators hypothesize that grading embryos using the oocyte's parameters as visualized by polscope is superior to conventional morphology and correlates better with their implantation potential. Here the investigators will perform a prospective randomized controlled trial to examine this hypothesis.