FERTIMACS: Sperm Separation Efficiency to Maximize Pregnancy Rates: MACS vs. FERTILE Chip
Study Details
Study Description
Brief Summary
In assisted reproductive technology (ART), the diagnosis of male infertility has been conducted based on the assessment and analysis of sperm concentration, motility and morphology with the aim of obtaining the best quality of spermatozoa. Any type of damage present in sperm DNA can lead to ART failure. Sperm DNA fragmentation might be the most frequent cause of paternal DNA anomaly transmitted to offspring, and is found in a variable percentage of spermatozoa in subfertile and infertile men. Such DNA fragmentation is negatively correlated with semen quality and consequently, there is a need to develop sperm separation techniques that facilitate retrieval of as many spermatozoa with normal DNA integrity as possible from ejaculated semen.
Because of centrifugation steps associated to swim-up or density-gradient can induce sperm DNA fragmentation via reactive oxygen species (ROS), microfluidic sperm sorters are being used to isolate motile human spermatozoa based on fluid dynamics. It seems to be that using this separation method, spermatozoa do not undergo added physical stress from sources such as a centrifuge. Hence, this new technology has been proposed to minimize DNA damage. In this study, we aim to determine if microfluidic sorting improves the selection of the best functional and with lower DNA fragmentation spermatozoa when compared to magnetic activated cell sorting (MACS) in split semen samples, and increases clinical outcomes.
Condition or Disease | Intervention/Treatment | Phase |
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Study Design
Arms and Interventions
Arm | Intervention/Treatment |
---|---|
Experimental arm One half of the oocyte cohort is microinjected with sperm selected by the Fertile technique, while the other half of the patient's oocyte cohort is microinjected with sperm selected by the MACS technique. |
Outcome Measures
Primary Outcome Measures
- Pregnancy rate [Mar 2019 - Oct 2021]
Total of positive pregnancies / total of patients with embryo transfer
Secondary Outcome Measures
- Fertilization rate [Mar 2019 - Oct 2021]
Total of oocyte fertilized / total of oocyte injected
- Implantation rate [Mar 2019 - Oct 2021]
Total of implanted embryos / total of transferred embryos
- Blastocyst rate [Mar 2019 - Oct 2021]
Total of bastocyst / total of oocyte fertilized
Eligibility Criteria
Criteria
Inclusion Criteria:
- Oocyte recipient patients
Exclusion Criteria:
-
Sperm concentration < 5 Mill/ml
-
Percentage of motile sperm < 15%
Contacts and Locations
Locations
Site | City | State | Country | Postal Code | |
---|---|---|---|---|---|
1 | IVI RMA Seville | Seville | Spain | 41011 |
Sponsors and Collaborators
- IVI Sevilla
- IVI Madrid
Investigators
- Principal Investigator: Cristina González Ravina, PhD, IVI RMA Seville
Study Documents (Full-Text)
None provided.More Information
Publications
None provided.- 1904-SEV-050-CR