Skip to main content
OpenTrials
Completed

NCT Number: NCT05859152

Zona Pellucida Bound Sperm vs. Embryologist Selected Sperm for Intracytoplasmic Sperm Injection

This study aims to assess the clinical significance of the intracytoplasmic sperm injection (ICSI) with zona-pellucida (ZP) bound sperm compared to ICSI with embryologist selected sperm for patients undergoing in vitro fertilization treatment of their infertility.

Completed

Looking for future studies?

Notify Me

Key information

Age range

18 year–41 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Reproductive Medicine Associates of Northern California

San Francisco, California, 94105, United States

About this study

In this study, the investigators aim to determine the clinical utility of the ZP-bound sperm selection methodology for ICSI. This study will be a prospective, split cohort, randomized, control trial comparing the routine standard of sperm selection for ICSI via the embryologist versus sperm selected via ZP-binding for ICSI. Embryology, ploidy and clinical pregnancy outcomes will be assessed.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Undergoing their first in vitro fertilization (IVF) cycle
  • Electing single embryo transfer
  • Electing preimplantation genetic testing for aneuploidy (PGT-A) of their embryos
  • Female partners age <42 years old at start of vaginal oocyte retrieval cycle, but >18 years old.
  • Normal ovarian reserve:
  • Antimullerian hormone level (AMH) ≥ 1.2 ng/mL
  • Antral follicle count (AFC) ≥ 8
  • At least 4 mature oocytes (M2s) retrieved at the VOR procedure in order to randomize
  • At least 1 immature oocyteretrieved at the VOR procedure to perform ZP binding co-incubation procedure
  • Intention to transfer the morphological best quality, euploid, embryo at the frozen embryo transfer procedure

Exclusion criteria

  • Contraindication to IVF
  • Clinical indication for preimplantation genetic testing (i.e., screening for single gene disorder, chromosomal translocation, or any other disorders requiring a more detailed embryo genetic analysis)
  • Male partner with azoospermia or oligozoospermia (<100,000 total motile spermatozoa)
  • Male partner with Y-chromosome microdeletion
  • Male partner with any Karyotype other than 46,XY
  • Male partner requiring surgically obtained sperm either via testicular or epididymal retrieval procedures
  • Uncorrected hydrosalpinges that communicate with the endometrial cavity
  • Endometrial Insufficiency, as defined by a prior cycle with maximal endometrial thickness <6mm,), or persistent endometrial fluid
  • Donor oocyte cycles
  • Gestational carriers

Treatment and study plan

Zona Pellucida-Bound Sperm Selection for ICSI

Other

one half of the patients' oocytes will be inseminated via the ICSI procedure with sperm that was bound to the ZP of an immature oocyte.

Routine Embryologist Selected Sperm

Other

one half of the patients' oocytes will be inseminated via the ICSI procedure with sperm that has been selected based on morphology and mobility characteristics by the embryologist per routine.

Primary outcomes

  1. Blastulation Rate

    Time frame: one week after the vaginal oocyte retrieval and ICSI procedure

    Blastulation rates per mature oocyte of ZP-bound versus embryologist selected sperm after ICSI.

Secondary outcomes

  1. Fertilization Rate

    Time frame: 24 hours post ICSI procedure

    fertilization rates per mature oocyte of ZP-bound versus embryologist selected sperm after ICSI.

  2. Blastocyst Ploidy Rate

    Time frame: Approximately 2 weeks after trophectoderm biopsy

    Preimplantation genetic testing for aneuploidy will be performed at the blastocyst stage and ploidy status compared between groups

  3. Sustained Implantation Rates

    Time frame: Approximately 6 weeks after frozen embryo transfer procedure

    The number of participants discharged at 8-9 weeks gestational age to their obstetrician.

Sponsors and collaborators

Lead sponsor

IVI America

Other

Registry information

Official study title

Comparing the Outcomes of Intracytoplasmic Sperm Injection (ICSI) Using the Zona Pellucida-Bound Sperm Versus Conventional Manually Selected Sperm

Important dates

Study start
2023
Primary completion
2024
Study completion
2025
First posted
May 15, 2023
Registry last updated
Jan 21, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Published trials that share one or more normalized conditions with this study.