Active clinical trials for "Infertility"

The study will collect the clinical and biological data of the patients, the investigators could further analyse and identify the risk factors and optimize clinical treatment method. Besides, population-based healthy people with informed consent are also collected.

All patients will undergo in vitro fertilization. Serum 25 (OH) D samples will be collected within1 week before oocyte retrieval. Whole blood specimens will be collected in serum separator tubes using acceptable medical techniques to avoid hemolysis. Ultrasound guided fresh embryo transfer will be performed on day 5 after fertilization. clinical pregnancy will be confirmed by observation of intrauterine sac visible on ultrasound performed 4-5 weeks after embryo transfer.

Infertility or infertility affects about 15% of couples of reproductive age. It is estimated that 80 million people around the world suffer from this problem. Assisted reproduction techniques (ART) use culture media (during in vitro fertilization or early embryo development) with protein sources that are very different from natural sources. This media could produce an added stress to the gametes and embryos that could cause epigenetic alterations and health effects during adult life. Our working hypothesis is based on studies in animal models (pig and cow), in which it was observed that the culture media with reproductive fluids used as additives instead of conventional sources of proteins (such as serum albumin) , produce embryos with an epigenetic profile closer to that of embryos generated in the maternal oviduct. Moreover, with these fluids, blastocysts obtained have a greater number of cells and hatchability than those produced with serum albumin alone. Therefore, the University of Murcia, with an extensive experience in this area, and the IVI Murcia (Valencian Infertility Institute) research team have come together to launch this research project in order to determine the advantages of the use of human reproductive fluids as additives in embryonic culture media. To do this, 2 specific objectives are proposed,: Creation of the first collection of human uterine fluid samples for Assisted Reproduction use. To evaluate the use of uterine fluid as a media supplement in the culture media for assisted reproduction techniques, by evaluating embryo quality cultured with autologous fluid from voluntary patients (autologous culture) This achievement would allow us the development of protocols in the nearest ART physiological conditions which represent not only a technical challenge but a biomedical responsibility that must be addressed to prevent future diseases of the offspring.

Basic and clinical research is revealing that various noncoding and small RNAs play important and diverse roles in germ cell development and quality, including X/Y silencing during meiosis, gene regulation, DNA damage responses, and protection of the genome against transposable elements. Indeed, mammalian germ cells are known to harbor multiple small RNA species, including small interfering RNAs (siRNA), microRNAs (miRNA), and germline- specific PIWI- interacting RNAs (piRNA). However, their mechanistic roles in gametogenesis and human infertility are largely uncharacterized. The goal of this study is to elucidate the role of small RNA pathways in the events that give rise to viable euploid gametes. Four projects and three cores are included in this study.

Normal testicular hormonal and spermatogenic function depends not only on the testis itself, but also on the integrity of the hypothalamus and anterior pituitary. Systemic diseases has been shown to influence male gonadal function in variety of ways, leading to reduced libido, erectile impotence, infertility, osteoporosis, and decreased physical stamina and muscle mass. The effect of systemic diseases may occur directly at the testicular level: reduced Leydig cell function will lead to androgen deficiency, while diseases affecting Spermatogenesis may lead to infertility. Alternatively, acute and chronic illness may interfere with the hypothalamic-pituitary axis and lead to reduced testicular function.

Age-related variability of the efficacy and tolerability of alternative pituitary suppression regimens in follicular stimulation for assisted reproduction purposes. A randomised, prospective, multi-centre clinical trial

The purpose of this study is to compare pregnancy outcomes of frozen-thawed embryo transfer after endometrial preparation with vaginal estradiol or transdermal estradiol and to evaluate women's satisfaction

In this study investigators will investigate the beneficial metabolic sequelae of Liraglutide in patients with obesity or overweight; including changes in vital signs, anthropometric characteristics (weight, body mass index and body composition), biochemical parameters, metabolomics and micro-ribonucleotide acid (miRNA) molecules from blood tests. Liraglutide is a commercially available analogue of a gut hormone physiologically produced in our bowel in response to food, licenced for the treatment of overweight or obesity. Liraglutide will be offered to patients attending National Health System (NHS) or private clinics within indication and according to their agreed clinical management. Investigators aim to collect real-life information for this study along with planned clinical management from patients who agree to their treatment and to take part in our study. Patients will be able to withdraw from treatment and study at any time without giving any explanation. If successful, this study will help us combine clinical, biochemical and molecular information which will allow us to gain deeper understanding on the mechanisms behind the beneficial metabolic effects of Liraglutide in overweight and obesity. Data generated from this study will hopefully help us acquire funding for a larger multicentre study; the results of which can have substantial impact on millions of people with overweight or obesity around the world.

ES is a procedure used to help embryos to implant more successfully after In-Vitro Fertilization (IVF) , ICSI in patients who had failed cycles in spite of transfer of good quality embryos. New researches and evidence suggests that scratching the uterine endometrium causes a repair reaction in patients may increase embryo implantation rate . In spit of the optimum timing of scratching not finally determined, the usual timing to perform ES is approximately one week before starting IVF, ICSI treatment . our study aims to compare other time of scratching which is the scratching at retrieval time.

The Preparatory information on Oocyte Aspiration Movie Randomized Controlled Trial (POAM-RCT) primarily aims to evaluate whether a new preparatory information on oocyte aspiration movie (POAM) decreases the anxiety of women on the day of their first oocyte aspiration for in vitro fertilisation (IVF). The control group of this RCT will receive care as usual. The intervention group will additional be given access to a preparatory information movie on oocyte aspiration 1-3 days before their oocyte aspiration via a secured link. Women's anxiety will be assessed with the 'State module of the State Trait Anxiety Inventory (STAI-state)' upon arrival at the fertility clinic on the day of the oocyte aspiration. At the same time other questionnaires will be administered. More specifically, men's anxiety and both partner's infertility specific distress will be assessed. In addition, to these secondary outcomes, clinical pregnancy with fetal heart beat and miscarriage will be followed-up 12 weeks after the oocyte aspiration. Finally, treatment delay and treatment discontinuation and long-term clinical outcomes (i.e. live birth from the first fresh embryo transfer, clinical pregnancy with fetal heart beat from the frozen embryo transfers of 1st IVF-cycle and the 12-months cumulative clinical pregnancy rates) will be followed-up twelve months after oocyte aspiration. This RCT will include 190 women (and their male partners) treated with a 1st cycle of IVF (with or without ICSI and PGD). Analysis will be according to intention to treat.