Active clinical trials for "Infertility"

The aim of this study is to assess the oocyte yield of infertile women with suspected or known poor ovarian reserve (POR) undergoing a GnRH antagonist protocol for IVF with Merional® starting either with a low (150 IU) or a high dose (450 IU) and adding 100mg of CC (Serophene®) in the early follicular phase of the stimulation (day 3 to 7). To date no RCT has been conducted to compare the reproductive outcome of patients with POR as defined by the ESHRE Bologna criteria after controlled ovarian hyperstimulation with HMG in an GnRH antagonist protocol using low doses versus high doses of HMG and adding CC versus placebo. We hypothesize that adding 100 mg of CC on day 3-7 to a HMG antagonist protocol will lead to an additional increment of endogenous GT thus increasing the oocytes yield after controlled ovarian stimulation due to higher endogenous gonadotropin secretion.

Human conception in vivo occurs in a complex milieu that includes proteins. It has been speculated that the addition of proteins more complex than human serum albumin to culture media may improve IVF outcomes. Whether the expense, labor and risk of adding additional human-derived protein to IVF media are warranted is a question unanswered. Patients, undergoing routine IVF or ICSI, will be assigned to one of two treatment groups in a randomized, prospective clinical trial . Embryos will be cultured in either media supplemented with human serum albumin (HSA) as a solitary protein supplement or in media supplemented with HSA + SSS from the 2-PN stage until the time of embryo transfer. Clinical endpoints monitored will be implantation rate, clinical pregnancy rate and live birth rate. It is expected that the supplementation of commercial embryo culture media containing HSA with the more complex protein source, SSS, will result in an overall increase in implantation, clinical pregnancy, and live birth rates. In the balance, protein enrichment of media may represent opportunities to simultaneously increase the live birth rate and reduce the incidence of multiple gestations.

Women with compromised ovarian reserve requiring in vitro fertilization (IVF) still represent a demanding challenge for clinicians. It has classically been claimed that using higher dosages of gonadotropins may overcome the scarce ovarian responsiveness to hyper-simulation and increase the chances of success. However, scientific evidence supporting this view is scanty and costs are inevitably much higher. In this study, the investigators hypothesized that similar chances of pregnancy may be achieved with a mild stimulation using exclusively Clomiphene citrate (CC).

Endometrial scratching in luteal phase of a spontaneous menstrual cycle may increase pregnancy rate in women with unexplained infertility.

The purpose of the study is to compare the pain experience between the patients that have had their transvaginal oocytes retrieval with ultrasound guidance performed with reduced single lumen needle (Vitrolife Sweden AB, Gothenburg) with the patients that have had follicle aspiration needle, 1.4 outer diameter (Vitrolife Sweden AB, Gothenburg), during the procedure.

The purpose of this study is to test if recombinant follicle stimulating hormone (rFSH) given in individual doses, according to a nomogram we have constructed based on our results from a previous study, results in more patients maturing 2-3 follicles compared to standard dose.

The purpose of this study was to determine if assisted embryo hatching can improve pregnancy rates for good prognosis patients undergoing in vitro fertilization (IVF) with day 3 embryo transfer.

This study is a comparison between the current standard practice of performing a diagnostic hysteroscopy and a relatively recently developed technology that is added to the standard diagnostic hysteroscopy. The aim of the study is to find out whether this newer technology has an advantage for the patient, in the form of anxiety and pain reduction.

The purpose of this pilot study is to evaluate whether a decrease in endometrial thickness (compaction) prior to progesterone exposure (endogenous or exogenous) to the day before a single frozen embryo transfer has an impact on the clinical pregnancy rate with euploid embryos in exogenous hormone and modified natural thaw cycles. Information derived from this study may give insight on ways to improve pregnancy rates in cryo-thaw cycles.

In vitro sperm selection for ICSI is important as it has a direct influence on the paternal contribution of preimplantation embryogenesis. Various laboratory tests were developed to assess the functions of the spermatozoa. Among them, only the tests for sperm DNA fragmentation, hyperactivation of the spermatozoa and the hyaluronan-binding ability are simple and fast.