Active clinical trials for "Infertility, Female"

This study is intended to determine whether there is a correlation between endometrial compaction and serum progesterone levels on the day of frozen embryo transfers by using transvaginal sonography for the endometrial assessment.

Introduction: Overall, 10 - 15% of couples seek specialist help once in their lives when a spontaneous pregnancy does not occur. These couples are defined subfertile when there is at least one year of unprotected intercourse without conceiving. Subfertility can have different causes which can be diagnosed with a basic fertility work-up. Unfortunately, the subfertility in 25% of the couples still remains unexplained. Hypothesis: The investigators hypothesize that cardio-metabolic and hemodynamic abnormalities reducing cardiovascular reserves relate to circulatory redistribution at the expense of uterine perfusion and with it women's fertility. This could especially be important in the subgroups with an unexplained subfertility and a decreased ovarian reserve. Interventions to improve these abnormalities could lead to better results in fertility treatment, better obstetric outcome and reduced lifelong health risks. Objective: The investigators want to examine specific cardio-metabolic and cardiovascular parameters in women of subfertile couples. The investigators want to evaluate the prevalence of metabolic syndrome in all women who are assessed for subfertility compared to healthy parous women. Furthermore in the women with an unexplained subfertility or with (signs of) a decreased ovarian reserve the cardiovascular profile will be studied consisting of the uterine artery pulsatility index (PI) as measure of uterine perfusion, the plasma volume as measure of venous reserve capacity, the intima media thickness of the carotid arteries as proxy of chronic strain and the endothelial function, measured by flow mediated dilatation (FMD) of the brachial artery. Study design: Cross-sectional Study population: The study group consists of subfertile women between 18 and 41 years who visit the fertility clinic in the Maastricht University Medical Centre with a primary or secondary subfertility. Women with an unexplained subfertility or with (signs of) a decreased ovarian reserve are evaluated for their cardiovascular profile. The control group consists of women with a history of an uneventful spontaneous pregnancy. Main study parameters: Prevalence of metabolic syndrome in subfertile women The cardiovascular profile, in women with an unexplained subfertility or with (signs of) a decreased ovarian reserve, consisting of: The uterine artery pulsatility index The plasma volume The intima media thickness (IMT) The endothelial function of the vascular system (FMD)

1,25-dihydroxy-vitamin D3 (1,25 (OH) 2D3) or calcitriol regulates plasma calcium and phosphate concentrations in the blood by stimulating intestinal absorption and renal reabsorption of calcium and phosphate. 1.25 (OH) 2D3 is formed by the renal 1α25OH vitamin D-hydroxylase (Cyp27b1) and inactivated by the renal 25-hydroxy vitamin D-24-hydroxylase (Cyp24). Unpublished studies in mice revealed an inhibitory effect of 1.25 (OH) 2D3 on embryo implanation. An excess of 1.25 (OH) 2D3 could therefore lead to female infertility. The excess of 1.25 (OH) 2D3 could result from uncritical vitamin D intake with insufficient negative feedback by FGF23 / Klotho. The aim of the study is to identify patients with an excess of 1.25 (OH) 2D3.

To set up a Cooperative Network by enrolling 5000 patients with Adenomyosis(AM) from multiple centers.Based on the Network platform and Database,the investigators try to explore the diagnostic strategies for AM and carry out epidemiological survey on the semeiology of AM.In addiction，the investigators expect to conduct research on the effect and the follow-up fertility outcomes of different medical or surgical treatment, the etiology of AM and endometriosis,the perspective investigation of the malignant transformation of AM ;the high-risk factors of AM,and finally propel the formation of Expert Consensus and Clinical Guidelines about AM which suitable to chinese conditions.

Our study aims to describe the effect of the intrauterine adminstration of HCG versus the endometrial injury by pipelle on the ongoing pregnancy rate and the biochemical pregnancy rate in women with unexplained infertility undergoing ovulation induction. Also to describe the effect on the first trimester miscarriage rate, ectopic pregnancy rate, and multiple pregnancy.This study is an open-label, prospective, controlled study, multi-center study. The study participants' relevant medical records will be collected and reviewed after obtaining informed consent for the participants. The study materials that will be used will include blood tests, and ultrasound. The study will involve three study arms.

The objective of our observational prospective study will be to compare, for women treated for infertility and included in a ICSI program, the implantation rate and delivery rate obtained after the transfer of a single blastocyst , chosen in a group of patients on the basis of the embryo morphology and in the other group on the basis of both embryo morphology and follicular fluid cytokines content. 100 IVF infertile patients , aged 32-39 years, with normal ovarian reserve, previously stimulated for their first cycle with standard short protocol (GnRH-Ant) and r-FSH alone, who have had a low ovarian response, Fort < 50% ( FORT Criteria, 2012; FORT= PFCX100/AFC), will be treated for the second cycle with standard short protocol (GnRH-Ant) and r-FSH plus r-LH , according to the standard established by our clinical practice. Patients will be part of one of the following groups: Group 1: single embryo transfer on day 5, according to standard embryo morphological criteria Group 2: single embryo transfer on day 5, chosen on the basis of both embryo morphological criteria and levels of cytokines measured in the individual FF.

The purpose of this study is to determine whether progesterone hormone levels differ following egg retrieval with a single lumen needle compared with a double lumen needle. These levels will be measured on several days before and after egg retrieval. The progesterone levels in each IVF group will also be compared to the group of women who are having IUI. In addition, these progesterone levels will be correlated with pregnancy outcomes.

The relation between the timing of COC denudation and oocyte /embryo quality is controversial. The aim of this study is to examine whether timing of denudation of sibling oocytes has any effect on embryo quality.

Anti Mullerian hormone (AMH) is gaining place as ovarian marker, chiefly in infertility assistance. Investigators explored its correlation with oocytes retrieval after long GnRH agonist protocol for stimulation, in younger and older infertile population. Methods: This prospective analysis compiled data of 66 females, receiving ICSI treatment from April 2016 to October 2017. Serum FSH, LH, Estadiol, AMH and antral follicle count were assessed. Outcomes were measured as good (5 to 19 oocytes) and bad responders.

The main objective of this study is to assess the ovarian reserve of CF patients via measurement of AMH and AFC. Secondly, we aim to correlate between the ovarian reserve and demographic and clinical characteristics of these patients. Outcomes measured will be levels of AMH and AFC, as compared to standard means in the general population. There is no need for a control group in this study since the standardized means of AMH and AFC in the general population are a more accurate comparable measure, which is based on data collected from large-scale populations, and thus accounts for confounding age factor in a more complete manner than can be obtained via a control group (Almog et al., 2011, La Marca et al., 2012, Penzias et al., 2020).