ClinicalTrials.gg
CompletedNCT06801652Updated Jan 30, 2025

The Influence of Sperm Morphology and Functional Indices on Blastocyst Development in Assisted Reproduction

An observational study in Spermatozoa, Abnormal, in Vitro Fertilization and Blastocyst, sponsored by Calla IVF Center. Completed at 1 site in Romania. Open to participants aged 21 Years to 40 Years. Per ClinicalTrials.gov, last updated 2025-01-30.

Sponsored by Calla IVF Center · Observational

Study type
Observational
Model
Case-control
Time perspective
Prospective
Enrollment
120
Ages
21 Years to 40 Years
Sex
All
01

Study summary

Samples from male partners of 120 infertile couples undergoing IVF were analyzed. Sperm morphology was assessed using the SpermBlue staining method, while TZI, MAI, and SDI were calculated. Embryo development was monitored until day 5 or 6. Statistical analyses included regression models and correlation coefficients to evaluate the predictive value of sperm indices on blastocyst development.

Read the detailed description

For spermatozoa selection we used ZyMot multi in all patients undergoing IVF. After intracytoplasmatic injection of spermatozoa we asses the blastocyst grading in day 5. NEQSI score meaning numerical embryonic quality score index was used for statistical purpose. The spermatozoa morphology indexes were: TZI (teratozoospermia index), MAI (multiple anomalies index), SDI (sperm deformity index) and analyzed with CASA analyzer. All these indexes were assessed in patients and correlated in all groups: patients that had a positive pregnancy test, patients that had a negative pregnancy rate, patients that had no blastocyst in day 5 and patients that had all aneuploid embyos.

02

Conditions studied

  • Spermatozoa, Abnormal
  • in Vitro Fertilization
  • Blastocyst
  • Aneuploidy

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03

In context

Aneuploidy

73 studies on the registry are indexed under Aneuploidy; 10 are open to participants now.

This study's enrollment of 120 is below the median of 325 across 38 observational studies indexed under Aneuploidy.

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Lead sponsor

Calla IVF Center is the lead sponsor of 4 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
21 Years to 40 Years
Sexes eligible
All
Sampling method
Non-probability sample

Study population

This prospective observational study analyzed sperm and embryonic parameters from 120 IVF cycles over 18 months. Functional sperm indices and embryo outcomes were evaluated to determine their relationship.

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • couples with an infertility diagnosis that underwent an IVF procedure and had obtained at least one blastocyst

Exclusion criteria

Exclusion Criteria:

  • donors
  • uterine abnormalities
05

Study design

Observational model
Case-control
Time perspective
Prospective
Enrollment
120 participants (actual)
Patient registry
No

Groups and cohorts

  • Positive HCG pregnancy test after embryotransfer

    Patients with sperm morphology indexes analyzed and had at least one good quality blastocyst that had a Positive HCG pregnancy test after embryo-transfer.

    Other: Sperm morphology indexes

  • Negative HCG pregnancy test after embryotransfer

    Patients with sperm morphology indexes analyzed and had at least one good quality blastocyst that had a Negative HCG pregnancy test after embryo-transfer.

    Other: Sperm morphology indexes

  • No embryo obtained after IVF

    Patients with sperm morphology indexes analyzed and had no blastocyst in day 5 or 6 after ICSI-IVF.

    Other: Sperm morphology indexes

  • All embryos obtained are aneuploid

    Patients with sperm morphology indexes analyzed and had all blastocyst of day 5/6 tested and aneuployd after ICSI-IVF.

    Other: Sperm morphology indexes

Interventions

  • OtherSperm morphology indexes

    We analyzed all sperm morphology indexes in all groups.

06

What researchers measure

Primary outcomes

  1. Evaluation of sperm morphology indices on fertilization and blastulation rate

    Functional sperm indices and embryo outcomes were evaluated to determine their relationship.

    Time frame: 18 months

Secondary outcomes

  1. Evaluation of sperm morphology indices on IVF outcomes

    The study's findings are limited to IVF populations and may not generalize to natural conception.

    Time frame: 16 months

07

Study locations

1 site
  • Calla Ivf Center
    Oradea, Bihor 410103, Romania
08

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Oct 2023 to primary completion in Oct 2024, 12 months.

How these figures are worked out, and which studies are left out of them.

Registered
Jan 25, 2025
First posted
Jan 30, 2025
StartActual
Oct 21, 2023
Primary completionActual
Oct 23, 2024
CompletionActual
Nov 10, 2024
Last update
Jan 30, 2025
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jan 30, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT06801652
Lead sponsor
Calla IVF Center
Responsible party
Sponsor
First posted
Jan 30, 2025
Start date
Oct 21, 2023
Primary completion
Oct 23, 2024
Completion
Nov 10, 2024
Last update
Jan 30, 2025

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jan 2025. You cannot join it, but the record below documents what was studied.

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