Active clinical trials for "Infertility"

University Reproductive Associates is conducting a pilot study to study the technique of egg freezing. Your participation in this study will provide us with important information to allow us to offer this technology for women wishing to freeze their eggs before cancer treatments. Your participation will include a standard IVF cycle with your eggs being frozen for a brief period of time and then transferred back to you as usual. You will receive a significant reduction in your IVF cycle cost.

Cycles with GnRH agonist and GnRH antagonist were compared and main outcome measures were the number of oocytes retrieved, injected and fertilized, embryos transferred, and clinical pregnancy and miscarriage rates, were analized.

The study tested the hypothesis that a pertubation with a lidocain solution will enhance pregnancy rate.

Medical know-how concerning uterus transplantation will be transferred to new site by structured process involving theory, animal workshops and a clinical feasibility study on human subjects.

Evaluation of endometrial preparation using either human menopausal gonadotrophin (HMG) stimulation and hormone replacement therapy (HRT) prior to blastocyst transfer in patients with moderate to severe intrauterine adhesion (IUA).

Vaginal microbiome has in studies shown a link with the outcome of fertility treatment. The investigators wish to determine if it is possible to change an unfavorable vaginal microbiome using lactobacilli loaded vaginal supplements.

to evaluate the value of using transvaginal ultrasound guided embryo transfer in obese patients undergoing in vitro fertilization.

Rationale: Intrauterine insemination (IUI) is the treatment of first choice for couples with unexplained and mild male factor infertility in many countries, but it is controversial whether ovarian stimulation improves fertility outcomes. In recent retrospectively collected data, investigators found that in couples with unexplained and mild male factor infertility undergoing IUI, ovarian stimulation with letrozole increased live birth rate as compared to natural cycle IUI without substantially increasing the multiple pregnancy rate. Investigators therefore perform a randomized clinical trial (RCT) on the subject in the Centre of Reproductive Medicine, Peking University Third Hospital, Beijing, China. Objective: To test the hypothesis that in couples with unexplained or mild male factor infertility scheduled for an IUI program ovarian stimulation with letrozole increases the live birth rate as compared to natural cycle treatment. Study design Randomized clinical trial. Study population Women diagnosed with unexplained or mild male factor infertility scheduled for treatment with IUI. Intervention Women will be randomized for ovarian stimulation with letrozole or to natural cycle IUI. In the group allocated to ovarian stimulation, women will receive oral tablets letrozole 5 mg daily from cycle day 3-5 for 5 days. Investigators will treat the couples for 3 cycles, with a time horizon of 4 months. Main study parameters/endpoints Primary outcome is ongoing pregnancy leading to live birth. Secondary endpoints are clinical pregnancy, multiple pregnancy, miscarriage rates, pregnancy complications and patients' costs. Nature and extent of the burden and risks associated with participation, benefit and group relatedness The strategies compared are already broadly applied in current practice. No additional risks are expected. There is no benefit for participants, but the results may benefit future subfertile couples.

Embryonic aneuploidy is the underlying etiology for the majority of failed implantation and miscarriage. Preimplantation genetic screening (PGS) with transfer of a euploid embryo has been advocated as a strategy for increasing live birth rates with a single embryo transfer. Culturing embryos to the blastocyst stage for trophectoderm biopsy is a requirement for PGS. Several commercially-available single-step embryonic culture media with varying composition have been established for use in the IVF laboratory. Early reports have suggested differences in clinical outcomes, such as aneuploidy and miscarriage rates, with distinct culture media currently in standard use. However, there have been no clinical trials demonstrating the superiority of any one commercially-available culture media formulation. As a result, clinics use media with varying composition based upon familiarity and cost.

The purpose of this study is to understand why some women are infertile (unable to conceive a child). The investigators hope to learn if an endometrial biopsy after egg retrieval is feasible for detecting biomarkers for endometriosis and predicting implantation and pregnancy rate after embryo transfer. This study design will provide for the first time, an opportunity to compare endometrial biopsy material from hyperstimulated (gonadotropin treated) subjects after egg retrieval. If successful, it would provide a new protocol for women with unexplained infertility or those with known endometriosis to avoid poor IVF outcomes.