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Ink and infertility: could your tattoo impact IVF?

NCT ID NCT07405879

Knowledge-focused Sponsor: McGill University Health Centre/Research Institute of the McGill University Health Centre Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 whether having a tattoo affects the chances of getting pregnant through IVF. Researchers will compare pregnancy rates in women with and without tattoos who are undergoing embryo transfer. The goal is to see if tattoo size, duration, or ink color play a role in fertility treatment outcomes.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

What this could lead to
If this study finds a link, it could help doctors advise patients on how tattoos might affect fertility treatment success.
What could go wrong
This is an observational study, not a treatment trial. It cannot prove cause and effect, and results may not apply to everyone.

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.

Participants

About 328 people

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

Expected to start

Feb 2026

An estimate. Start dates often move.

Expected to finish

Jan 2031

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.

Who is studied

The study population consists of women aged 21 to 40 years undergoing in vitro fertilization (IVF) with a planned fresh or frozen blastocyst embryo transfer at a single academic fertility center. Eligible participants must have at least one good-quality blastocyst available for transfer and provide informed consent. Participants are prospectively followed and categorized based on the presence or absence of tattoos at the time of embryo transfer. Pregnancy and obstetric outcomes are assessed through review of medical records over the study follow-up period.

Ages

21 to 40 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: Women aged 21-40 years Undergoing IVF with planned fresh or frozen blastocyst embryo transfer Availability of good-quality blastocyst embryos Willingness to provide informed consent Exclusion Criteria: Significant untreated uterine abnormalities ≥3 prior failed embryo transfers Hydrosalpinx in situ BMI \>40 kg/m² Age \>41 years at embryo creation Submucosal fibroids in situ Use of medications affecting implantation (e.g., chronic steroids, metformin)

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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.

Assisted reproductive technology outcomes Infertility

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

  • MUHC Reproductive Centre

    Montreal, Quebec, H2L4S8, Canada

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