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Father's age may matter in IVF: new study investigates sperm selection methods

NCT ID NCT06629766

Knowledge-focused Sponsor: Reproductive Medicine Associates of New Jersey Source: ClinicalTrials.gov ↗

What the study statuses mean

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Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study looks at how the age of the male partner and the way sperm is chosen might affect embryo growth in IVF. About 100 couples having their first IVF cycle will take part. Researchers will compare a special sperm selection device (Zymot) with the usual method to see which leads to more embryos reaching the blastocyst stage.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

About 100 people

The number the study aims to enrol. It can still change while the study runs.

Started

Apr 2025

Expected to finish

Dec 2028

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 to 41 years

Sex

Female participants only

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Undergoing first IVF cycle * Electing single embryo transfer * Electing PGT-A of their embryos * Female partners age \<42 years old at start of VOR cycle, but \>18 years old. * AMH ≥ 1.2 ng/mL * AFC ≥ 8 * FSH ≤ 12IU/L * At least 4 mature oocytes (M2s) retrieved at the VOR procedure in order to randomize * 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 (\<500,000 total motile spermatozoa on the most recent semen analysis within one year of enrollment) * Planned for previously cryopreserved sperm to be used for ICSI * Donor sperm * 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 or embryo cycles * Gestational carriers

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Conditions

The condition(s) this trial relates to.

infertility disorder

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Infertility (ivf patients) Oocyte competence Paternal age Sperm DNA fragmentation Sperm selection

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Reproductive Medicine Associates of New Jersey

    RECRUITING

    Basking Ridge, New Jersey, 07920, United States

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