Active clinical trials for "Infertility"

This study analyses clinical data prospectively collected for over a decade in several clinical databases. Electronic medical records are available since 1998. Since 2011 the subgroup of patients that undergo fertility preservation are invited to participate in a prospective study aiming at long-term follow-up after fertility preservation for oncologic and non-oncologic conditions.

The purpose of this study is to investigate the effects of COVID-19 Vaccination on semen parameters and to determine how long these possible changes may last following vaccination.

The incorporation of ovarian reserve tests in IVF management started after initial publications indicating a potential role for basal FSH in predicting pregnancy outcome after IVF and in counseling patients (1,2). Since these first publications, a large body of additional work on basal FSH and several other tests has been published, often with inconsistent findings on the magnitude and direction of the predictive effect. (3). Level of basal FSH at the start of IVF, in patients aged younger than 40 years, was shown to predict an oocyte yield by several authors, but wasn't related to pregnancy or implantation rates. (4). Social egg freezing refers to the cryopreservation of mature oocytes on an elective basis for the purpose of delayed childbearing. Many women now have a solution to "bridge the gap between reproductive aging and readiness to have children. Assessment of ovarian reserve enables estimation of the remaining egg pool and can be compared with other women her age. Ovarian reserve tests aim at identifying women at risk of hypo or hyper response to ovarian stimulation: it can possibly detect reproductive lifespan and approximate menopausal timing, assist in counseling family planning and to optimize ovarian response whilst minimizing risks (5). In Israel, retention of fertility for non-medical reasons is offered for women who have reached the age of 30, but have not yet reached the age of 41. These women may undergo up to 4 retrievals or until 20 eggs are obtained (whichever occurs earlier). The 2022 Health Services, decided to include, for the first-time, to cover cryopreservation for women with a diminished ovarian reserve (6). This unique population is currently addressing our clinic in order to preserve fertility. One of the criteria for coverage entitlement is elevated day 3 FSH level. The tests used for assessing ovarian reserve include basal day -3 follicle stimulating hormone (FSH, introduced in 1998). Clomiphene citrate challenge test (CCCT, 1989), gonadotropins releasing - hormone agonist stimulation test (GAST, 1989), Inhibin -B (1997), antral follicle count (AFC, 1997) and antimullerian hormone (AMH, 2002.) (7) Measurement of basal FSH is relatively inexpensive, imposes no major burden on the patient, and is widely used in assisted reproductive technology programs. Follicular fluid provides a very important microenvironment for the development of oocytes. It is reasonable to think that some biochemical characteristics may play a critical role in determining oocyte quality and the subsequent potential to achieve fertilization and embryo development. Components may also provide information on metabolic changes in blood serum, as the circulating biochemical milieu may be reflected in it's composition . In our current research we wish to assess cycle yield as related to basal FSH level among women diagnosed as having a low ovarian reservoir and were acknowledge as eligible for oocyte cryopreservation coverage. We also would like to measure hormonal level like LH, FSH, Perlakan ,in a follicular fluid after the oocyte retrieval in order to asses the microenvironment .

Use of discarded embryos to advance laboratory expertise and technology in the area of human embryo development and assisted reproductive technologies

Human embryonic stem cells (hESCs) are isolated from the early human embryo and have the capability to proliferate indefinitely in culture and to develop into nearly every cell of the human body. Therefore, hESCs may serve as a renewable unlimited source of cells for transplantation therapy. Because of the use of animal products in their derivation, and due to the lack of appropriate quality and process controls in the manufacturing of existing cell lines worldwide, existing hESC lines are not suitable for utilization in transplantation therapy. Our objective is to derive several new hESC lines that will be suitable for clinical trials. The investigators plan on deriving the new hESC lines utilizing only FDA-approved raw materials in a non-animal culture system. They will be produced entirely under GMP conditions, using appropriately documented procedures and analytical methods, completely safety tested, and screened for infectious and adventitious agents.

To investigate, whether on the day of egg retrieval, after ovarian stimulation for ICSI (intracytoplasmic sperm injection), there is a correlation between the intrafollicular AMH (Anti-Müllerian hormone) levels and the ploidy status of the blastocyst.

This is a single-center, prospective, randomized controlled study. Patients with single blastocyst transfer in the freeze-thaw cycle, aged from 20 to 38 years, with less than three transfers, and with HRT-cycle single D6 blastocyst transfer in the current cycle were enrolled as the study participants. They were randomized into two groups using an Excel table, and the efficacy was evaluated in a blinded manner by a third party who was unaware of the grouping; the data summary phase was performed by blinded statistical analysis with triple separation of the investigator, operator, and statistician.

Multiple studies suggest a link between the iron status and the development of the endometrium. Therefore, a sufficient iron supply seems to relevant for female fertility and reproduction. To gain further insight on the effects of iron status on female fertility, a prospective study on infertile women und women with recurrent miscarriage will be conducted. In these, the iron status will be evaluated in detail. In addition, a control group of healthy women without infertility will be enrolled.

To determine the diagnostic accuracy of non-invasive preimplantation genetic testing for aneuploidy (NI-PGT-A) for embryo selection.

This post-marketing surveillance study is conducted in accordance with the regulations for re-examination of domestic new drugs (Standard for Re-Examination of New Drugs: Ministry of Food and Drug Safety [MFDS]: Notification No. 2017-95, 21 Nov, 2017). It is important to monitor the pattern of drug use in general practice for a long term after marketing authorization, and to investigate and identify potential new adverse events (AEs) and their onset status that were not observed during the drug development phases and any potential factors that affect safety and effectiveness of the new drug.