View clinical trials related to Infertility.
Filter by:The present randomized controlled study aims to investigate the effectiveness of a combined regimen of letrozole and gonadotropin with dose adjustments based on body mass index (BMI) compared to a conventional only gonadotropin regimen in intrauterine insemination (IUI) cycles for couples experiencing unexplained infertility. The study was conducted at a tertiary university hospital's Assisted Reproductive Technologies (ART) center from January 2023 to January 2024. Couples with unexplained infertility were enrolled based on comprehensive assessments, and randomization was performed based on national ID (odd or even). The Conventional Only Gonadotropin (COG) group received recombinant FSH based on body mass index (BMI), while the Combined Letrozole-Gonadotropin (CLG) group received letrozole followed by gonadotropin with dose adjustments based on BMI. Ovulation induction and IUI were performed according to standard protocols. Clinical outcomes, gonadotropin consumption, and pregnancy rates were compared between groups. Among 317 IUI cycles, 131 couples with unexplained infertility were randomized (CLG: 61, COG: 70). Demographic parameters were similar between groups. The CLG group had lower daily gonadotropin doses (67 ± 18 IU/D vs. 76 ± 11 IU/d, p=0.01) and total gonadotropin consumption (750 IU vs. 825 IU, p=0.01) with comparable ovulation and clinical pregnancy rates. The COG group exhibited higher multiple pregnancy rates, although not statistically significant (CLG vs. COG; 1/61 vs. 3/70, p=0.4). The study suggests that the combined letrozole and gonadotropin regimen with BMI-based dose adjustments in IUI cycles for unexplained infertility is associated with reduced gonadotropin consumption and potentially lower multiple pregnancy rates.
The assessment of ovarian reserve is well established based on the dosage of anti-Mullerian hormone (AMH). The clinical applicability of detecting thyroid autoantibodies levels has been discussed as a potential marker of low-grade inflammation. There are no studies about the detection of these autoantibodies in infertile women. Our objective is to evaluate the association between ovarian reserve and thyroid function and its autoimmunity in infertile women seeking for assisted reproductive treatment (ART).Evaluation ot thyroid function in the first trimester in also be evaluated in women submitted to ART.
The project aims to conduct a retrospective study to assess the impact of Traditional Chinese Medicine (TCM) on improving pregnancy rates and preventing miscarriages. It will include patients with infertility issues or a history of miscarriage. The study will analyze demographic and physiological data, TCM constitution, basal body temperature, reproductive history for females, and semen analysis for males, to determine the effectiveness of TCM care in enhancing fertility outcomes.
Non-obstructive azoospermia (NOA) stands as the most severe form of male infertility. However, due to the diverse nature of testis focal spermatogenesis in NOA patients, accurately assessing the sperm retrieval rate (SRR) becomes challenging. The current study aims to develop and validate a noninvasive evaluation system based on machine learning, which can effectively estimate the SRR for NOA patients. In single-center investigation, NOA patients who underwent microdissection testicular sperm extraction (micro-TESE) were enrolled: (1) 2,438 patients from January 2016 to December 2022, and (2) 174 patients from January 2023 to May 2023 (as an additional validation cohort). The clinical features of participants were used to train, test and validate the machine learning models. Various evaluation metrics including area under the ROC (AUC), accuracy, etc. were used to evaluate the predictive performance of 8 machine learning models.
For several years, the effects of environmental pollution on human health have been a growing concern for the scientific community and public authorities. Among the many known chemical contaminants, persistent organic pollutants (POPs) are of particular concern because of their properties as endocrine disrupters, bioaccumulation and biomagnification. The associations between environmental pollutants, endometriosis and infertility remains poorly understood. The objective of this exploratory non interventional monocentric study conducted in the University Hospital of Nantes, is to identify endogenous molecular profiles associated with endometriosis and related infertility. This project implements an exploratory approach combining exposure and metabolomics approaches based on high-resolution mass spectrometry to identify exposure and metabolomics profiles associated with infertility, and biomarkers for potential prognostic application.
Conducted at a single-center, this prospective-retrospective study focused on all couples who initiated their journey at the Fertility Center of Humanitas Research Hospital, Rozzano (Milan), Italy. The prospective study focused on the couples whose first consultation occurred in 2021. A tailored questionnaire was administered via telephone by staff members to gather insights into the personal reasons for treatment discontinuation among non-returning patients. Conversely, the retrospective study included all infertile couples initiating treatment between January 2012 and December 2021 at the Fertility Center. Data encompassing personal history and demographic details were extracted from the internal database of Humanitas Fertility Center to assess the factors involved in a treatment discontinuation.
During two none subsequent natural menstrual cycles healthy female participants will be subjected every second day to blood sampling and 3D-ultrasound examinations. Together with four other key hormones the concentration of AMH (anti-Muellerian Hormone) will be measured in the serum.
The aim of the this study was to evaluate the effect of fertility support education given to infertile couples before treatment.
The goal of this observational study is to learn about vaginal microbial characteristics in the patients under in vitro fertilization treatment. The study aims to address the following questions: (1) Is there any difference in microbial composition between the pregnancy and non-pregnancy groups? (2) Is there any differences in specific bacterial species between the two groups? (3) What are the favorable or unfavorable profiles of vaginal microbiota associated with achieving pregnancy? Patients will be asked to complete a questionnaire regarding their basic characteristics, and vaginal secretions will be collected via vaginal swab during frozen-blastocyst transfer procedures. The study will compare vaginal microbiota between pregnant and non-pregnant patients to assess its potential influence on clinical outcomes.
The objective of the project is to elucidate if the oral administration of Ligilactobacillus salivarius CECT5713 is capable of improving the rates of term pregnancies in couples with infertility problems of unknown cause. On the other hand, the project is aimed to detect microbiological, immunological and hormonal markers that allow the identification of couples in which the administration of the strain could be particularly effective. This is a randomized, double-blind, parallel-group controlled nutritional intervention study. The intervention (Ligilactobacillus salivarius CECT5713 or placebo) will be performed during the 6 months prior to the fertility treatment and during the first IVF cycle (estimated 1-2 months). In case of pregnancy, the woman will continue the treatment until 12 weeks of gestation.