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Embryo clinical trials

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NCT ID: NCT05737381 Recruiting - Infertility Clinical Trials

Quality of Human Embryos in IVF, Culturing in Differentiated Oxygen

Start date: September 15, 2022
Phase: N/A
Study type: Interventional

The goal of this clinical trial is to evaluate the importance of differential O2 tension to the developing embryos. As a secondary aim, we investigate the levels of reactive oxygen species (ROS) in spent media from the developing blastocysts. This is a prospective, interventional multicenter study using sibling embryos. Woman (age 18-41 and normal weight) undergoing assisted reproductive technology (ART) can be included in the study. Patients included in the project will follow standard IVF protocol and treatment. By retrieving ≥ 8 oocytes after pickup and upon prior acceptance by the patient, she/the couple can be included in the study. According to standard treatment, both groups of oocytes will be placed in an incubator with 5% O2.After 3 days of cultivation, the dishes with the study-embryos will be transferred to an incubator with 2% O2. The control embryos will remain in the conventional 5% O2 incubator. On the fifth day, the embryos will be evaluated, and the blastocyst with expected greatest implantation potential will be transferred to the patients uterus. Surplus embryos with expected implantation potential will be cryopreserved. After transfer or cryopreservation, the media from the wells with used blastocysts will be collected and stored for ROS analysis. Value for public Health: If our hypothesis is confirmed, we will be able to optimize the developmental conditions and decreased ROS levels for the embryo in vitro. From a clinical perspective, this could affect the implantation rate of the blastocyst and thus the success of pregnancies for infertile couples while reducing the number of treatments to obtain a viable pregnancy.

NCT ID: NCT04795440 Recruiting - IVF Clinical Trials

Comparison of ICSI Outcomes in Cycles Using Testicular and Ejaculate Sperm From Couples With High SDF

Start date: October 1, 2020
Phase: N/A
Study type: Interventional

In patients with oligospermia in the ejaculate or previous ICSI failures if it concurs with high DNA fragmentation, it has been hypothesized that the use of sperm obtained from the testicle would improve the clinical results, since a source of damage to the spermatic DNA is post-testicular in its storage in the epididymis and thus could be avoided. The clinical information available so far is low, of low quality and all the studies present certain limitations susceptible to improvements in further investigations before giving a definitive answer to patients in these circumstances, about whether they should opt for testicular biopsy or for the use of semen in the ejaculate.The intention proposed in our project, is to demonstrate whether using testicular sperm, compared to those available in an ejaculate in these cases, offers a clinically and statistically significant increase in chromosomally normal embryos available that may lead to better reproductive performance of the cycles, in a design never before done, where half of a patient's oocytes are inseminated from ejaculated sperm and the other half from sperm obtained in the testicular biopsy.

NCT ID: NCT03810040 Not yet recruiting - Embryo Clinical Trials

Effect of Degranulation Needle With Different Diameters on the Rate Good Embryo in IVF

Start date: February 2019
Phase: N/A
Study type: Interventional

Good-quality embryos are critical for the success of in vitro fertilization (IVF). But, to date, there is no report of the effect of different diameters denuding pipette on the embryos quality. To investigate the effect of denuding pipette in IVF outcomes, we plan to recruit women undergoing IVF treatment cycles and classified them into two groups according to the different diameters. Consequently, the rate of fertilization, zygotes cleaved, top quality embryos on D3, and blastocysts obtained were recorded.

NCT ID: NCT03354013 Completed - Genetic Disease Clinical Trials

Genetic Screening and Assisted Oocyte Activation in Couples With Diminished/Aberrant Embryonic Development.

AOA
Start date: January 15, 2018
Phase: N/A
Study type: Interventional

This is an interventional comparative study at the Department of Reproductive Medicine at Ghent University Hospital. Patients with previous embryo developmental problems are eligible for the study. Patients will undergo an ICSI-AOA treatment and will also be screened for genes important in the oocyte activation and embryonic development process. Also, the calcium releasing pattern of the patients' spermatozoa will be investigated.

NCT ID: NCT03097042 Completed - Embryo Clinical Trials

Comparison of Two Different Catheter Withdrawal Technique

Start date: February 1, 2017
Phase: N/A
Study type: Interventional

The embryologist will oad the embryos into the catheter at the right position, then the catheter will be slowly pushed through the cervical canal, 1-2 cm beneath the fundus 5.5 cm away from the cervical external os.The embryos will be delivered by pushing the plunger of the syringe from the mid-cavitary positioned catheter and keeping the plunger pushed down. Study Group: The catheter will be pulled back slowly and without rotation with the plunger still pushed forward. Control Group: The catheter will be pulled back slowly with a 360°rotation with the plunger kept pushed forward.

NCT ID: NCT02999958 Completed - Human Clinical Trials

Adding Antioxidants Into Human Sequential Culture Media System

Antioxidants
Start date: December 2016
Phase: N/A
Study type: Interventional

Upon collection, human oocytes are fertilized and culture up to the blastocyst stage, followed by transfer and / or cryopreservation. Culture media systems have been developed that support each step of this process. Although these culture media systems try to mimic the natural environment, several components of the in-vivo situation are not present in today´s media. One such component is anti-oxidants that may protect embryos against damage by reactive oxygen species. This investigation aims to compare blastocyst development using 2 different types of culture media systems, one of which contains antioxidants. Patients having at least eight oocytes and meeting other inclusion criteria can be included in this investigation. It is a prospective randomized multicenter study randomly dividing oocytes into two groups and assessing parameters of embryo development from fertilization up to blastocyst formation until day six. Embryos with acceptable developmental characteristics can be transferred into the uterus or cryopreserved for later use. The investigation is designed as a superiority study comparing utilization rate of blastocysts per normally fertilized oocyte using both media systems. In patients receiving embryo transfer in the fresh treatment cycle, detection of clinical pregnancy by ultrasound after 12 weeks gestation is the final endpoint of the investigation.

NCT ID: NCT02971878 Completed - Human Clinical Trials

Comparisons of Human Embryonic Development Using Single Medium With and Without the Addition of Antioxidants

Start date: November 2016
Phase: N/A
Study type: Interventional

Aim: To investigate the impact of antioxidants (acetyl-L-carnitine, N-acetyl-L-cysteine and a-lipoic acid) on embryo development and subsequently the clinical outcome. Including clinics using low oxygen and ambient air during embryo culture. Analysed with time-lapse system. Study media: G-TL with antioxidants. Control media: Same media without antioxidants. Type of study: Study comparing blastocyst development on the same cohort of oocytes using two different media, G-TL versus G-TL supplemented with antioxidants. Statistics based on an absolute increase in Good Quality Blastocysts on day 5 of 7%. Design: Multicentre prospective randomized sibling trial. Single blastocyst transfer. Superiority study Primary Endpoint: Good Quality Blastocysts on day 5 per allocated normally fertilized oocyte. Patients: Comparative embryo sibling study with 128 patients included.

NCT ID: NCT02313311 Enrolling by invitation - Embryo Clinical Trials

Select Embryos by Time-lapse System for Single Embryo Transfer

SETLSSET
Start date: October 2013
Phase: N/A
Study type: Observational

The objective of this study is to establish a hierarchical embryo selection process by using the time-lapse imaging (TLI), combining the embryo cleavage patterns and timing parameters.