Active clinical trials for "Infertility"

To prove efficacy of an immunomodulator called pentoxifylline in the treatment of endometriosis in infertile patients undergoing laparoscopy surgery

To investigate the effect of daily administration of low-dose aspirin, compared to placebo, on IVF and ICSI outcome.

The timing of IUI following ovulation induction has been the subject of many studies and a consensus has developed that a single insemination approximately thirty-six hours after ovulation induction is sufficien. The introduction of GnRH antagonists preventing a premature LH surge and early ovulation has added a new dimension to fertility treatment. It allows greater accuracy in predicting the timing of ovulation and has been shown to be at least as effective, if not more effective, as ovarian stimulation without antagonists. We hypothesize that by utilizing GnRH antagonists we can increase pregnancy rates during IUI by timing the IUI as close as possible to the moment of ovulation guaranteeing the highest and freshest concentration of motile spermatozoa in the fallopian tube at the time the oocyte is released from the ovary. We therefore propose a randomized open three arm prospective trial utilizing superovulation with GnRH antagonists whereby the IUI is timed to take place 36, 42 or 48 hours after ovulation induction.

The primary objective of this trial was to investigate the appropriate dose of a single injection of Org 36286 to initiate multifollicular growth for the first seven days in a controlled ovarian hyperstimulation (COH) protocol for IVF and IVF/ICSI. After seven days, participants were converted to treatment with Puregon® 150 IU and administration of the GnRH antagonist Orgalutran® to finalize the stimulation cycle. Secondary objectives were the safety (including the absence of antibody formation) and the direct effects of Org 36286 on reproductive functions (steroidogenesis, oocyte maturation, embryo quality and implantation).

The success of assisted reproductive technologies (ART) is critically dependent on optimizing protocols for controlled ovarian stimulation to provide adequate numbers of good quality oocytes and embryos. This optimization is mainly valuable to a group of infertility patients (9%-24%) who respond poorly to Controlled Ovarian Stimulation(COS). It is also important for an additional 2.6% of the infertility patients who manifest a high response to gonadotropin and are at risk for hyperstimulation syndrome, a life-threatening situation. Extensive research was carried out and led to the introduction of GnRH antagonist, as an alternative to Gonadotropin Releasing Hormone (GnRH) agonist, for the prevention of premature Luteinizing Hormone (LH) surges. Further research to optimize the GnRH antagonist regimen concluded that a daily treatment with 200 IU of recombinant Follicle Stimulating Hormone (recFSH) in a GnRH antagonist regimen is safe, well tolerated and results in a good clinical outcome. This protocol is now frequently applied in the US and Europe. Predicting a woman's response (based on the assessment of ovarian reserve) to COS is useful in determining individualized clinical management strategies for low and high responders and thus avoiding cancellation. Such prediction when based on reliable scientific evidence is valuable in consulting patients about their chances of success. A large number of studies have been performed, which used certain clinical, ultrasonographic and hormonal markers (called predictive factors), to try to optimize a COS protocol for patients who were down-regulated with a long GnRH agonist protocol. Prospective trials of predictive models have also been used to adjust the starting dose of FSH to prevent a too low or too high ovarian response. To date, however, none have been performed for women undergoing ovarian stimulation with a GnRH antagonist protocol. The primary objective of this randomized, open-label, multicenter clinical trial was to identify one or more factors capable of predicting ovarian response in women treated with a daily dose of 200 IU recFSH in a GnRH antagonist protocol. Since many ART centers now use oral contraceptives as a means to schedule patients stimulated with recFSH and a GnRH antagonist for assisted reproduction, the trial evaluated also whether intervention with oral contraceptives affects the accuracy of predictive models for ovarian response.

Recurrent implantation failure is the failure to achieve a pregnancy after multiple attempts with in vitro fertilization treatment. The reason is usually obscure. Many empirical treatments have been offered without substantial evaluation. Heparin is thought to play a role in the embryo implantation process beyond its anticoagulation effects. The proposed study aims to assess the effectiveness and safety of empirical administration of low molecular weight heparin in patients undergoing a new IVF treatment cycle after multiple failed attempts.

This study evaluates the analgetic effects of the fast-release orodispersible tramadol tablet. Tramadol acts through a weak affinity for μ receptors and secondly by inhibiting noradrenaline and serotonin neuronal reuptake. It has been used since the 1970s by over 50 million people for the treatment of acute and chronic pain. The orodispersible Tramadol tablet is a new galenic form and is available on the Belgian market for the last three years. Pregastric absorption leads to a quicker onset of action. So far, evidence shows that pain during and immediately after the Hysterosalpingography (HSG) procedure is only significantly reduced by IV opioid analgesia. This study evaluates the analgetic potential of an orodispersible opioid tablet. This tablet disintegrates rapidly (in around 20-30 seconds) and may be taken without water. Its abuse potential is very low and its respiratory depressant effect is negligible.

According to the studies, about 80% of patients undergoing in vitro fertilization/intracytoplasmic sperm injection (IVF/ICSI) reach to the embryo transfer process, but only a few of them become pregnant. The cause of this difference can be due to some factors such as the endometrial receptivity, quality of transferred embryos and embryo transfer technique. Retained or expelled embryo(s) following embryo transfer is (are) one of the factors which may be effective on outcome. The purpose of this randomized clinical trial study is "Lowering embryo expulsion following embryo transfer to improve outcome."

A single dose GnRH agonist administration in the luteal phase of assisted reproduction cycles was reported to increase pregnancy and birth rates. This study was done to evaluate the reproducibility of previous findings.

This study was designed to obtain pilot clinical evidence of the efficacy, safety and acceptability of r-hLIF administered during the luteal phase after IVF/intra-cytoplasmic sperm injection (ICSI) and ET for improving embryo implantation in infertile women with a history of at least three implantation failures following ART. Based on LIF expression patterns and experimental data from animal research a role of LIF in embryo implantation is anticipated.