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Trial to Improve Fertilization Rate and Embryo Development in Intracytoplasmic Sperm Injection (ICSI) Cycles

Trial to Improve Fertilization Rate and Embryo Development in Intracytoplasmic Sperm Injection (ICSI) Cycles

Status
Active, not recruiting
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07056400
Enrollment
108
Registered
2025-07-09
Start date
2024-04-03
Completion date
2026-01-31
Last updated
2026-01-05

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Male Infertility

Brief summary

The Aim of the trial: Assess if a consecutive second ejaculate contains an equal, or even higher number of motile sperm and produces high-quality sperm for intracytoplasmic sperm injection (ICSI) in male factor patients and if it will improve clinical outcomes, such as fertilization rate, embryo quality, number of blastocysts retrieved per cycle, implantation, and hopefully pregnancy rates.

Detailed description

Background: According to research, the length of abstinence has an impact on sperm DNA fragmentation (SDF) as well as sperm parameters. Long abstinence period increases the volume of semen and the concentration of sperm, but it will negatively impact motility, viability, and morphology. The second ejaculation of males shows a considerable improvement in total motility and a significant decrease in (SDF) when it is collected within 1 to 3 hours of the first ejaculate. it is essential to ensure the availability of high-quality spermatozoa with second ejaculation to enhance clinical results in ICSI cycles

Interventions

PROCEDUREFirst Ejaculate for ICSI

Intervention 1: First Ejaculate for ICSI In this intervention, sperm collected from the first ejaculate will be used in Intracytoplasmic Sperm Injection (ICSI). The sperm will be analyzed for motility, morphology, and concentration before being used in fertilization and embryo culture. This arm will evaluate the quality of sperm obtained from the first ejaculate

PROCEDURESecond Ejaculate for ICSI

In this intervention, sperm collected from the second ejaculate (obtained within 1-2 hours after the first ejaculate) will be used in Intracytoplasmic Sperm Injection (ICSI). The sperm will be analyzed for motility, morphology, and concentration before being used for fertilization and embryo culture. This arm will evaluate the quality of sperm obtained from the second ejaculate and its impact on fertilization rates and embryo development

Sponsors

Ain Shams University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
MALE
Age
25 Years to 45 Years
Healthy volunteers
No

Inclusion criteria

* Male: with abnormal semen parameter according to WHO. * Age range between 25-45 for both partners.

Exclusion criteria

* Female with factors that might affect Oocyte quality: Polycystic ovary (PCO). Poor ovarian reserve. Endometriosis. \- Male partners who need testicular biopsy to retrieve sperms.

Design outcomes

Primary

MeasureTime frameDescription
fertilization rate.PeriproceduralFertilization will be confirmed after 16-18 hours by the observation of two distinct pronuclei (2PN) and two polar bodies. The fertilization rate will be calculated as the number of fertilized oocytes divided by total number of mature oocytes (MII) for each couple. Oocytes with 2PN will be observed

Secondary

MeasureTime frameDescription
Embryo development rateperiproceduralOocytes with 2PN will be observed for embryonic development on day 2 and 3 until day 5 after micro-injection. The embryo development rates will be calculated as the number of embryos developed divided by the total number of mature oocytes for each couple.
semen analysisBaselineSemen samples will be analyzed in both the first and second ejaculate according to the World Health Organization (WHO) 2021 guidelines. The following parameters will be assessed: Semen volume (mL) Sperm concentration (million/mL) Total sperm count (million) Progressive motility (%) Total motility (%) Normal morphology (%) Analysis will be performed in a certified andrology laboratory using standardized techniques.

Other

MeasureTime frameDescription
Clinical Pregnancy Rateup to 6 weeksThe clinical pregnancy rate will be assessed by detecting pregnancy via ultrasound after embryo transfer. This will help assess the long-term outcome of fertilization with sperm from the first and second ejaculates.
Sperm DNA Fragmentation index (DFI)BaselineSperm DNA fragmentation will be assessed using the HALO test (sperm chromatin dispersion assay), following the manufacturer's protocol. The DNA fragmentation index (DFI) will be calculated as the percentage of sperm cells showing fragmented DNA.

Countries

Egypt

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026