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Fetal MRI study pulled before starting

NCT ID NCT05253742

Knowledge-focused Sponsor: Massachusetts General Hospital 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
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 Results may not be published yet.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 This study
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This status has not been confirmed recently, so it may be out of date.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 aimed to develop better MRI scanning methods for imaging fetuses during pregnancy. The goal was to improve image quality and make scans faster and more accurate, even when the baby moves. However, the study was withdrawn before any participants were enrolled, so no results are available.

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.

Expected to start

May 2023

An estimate. Start dates often move.

Expected to finish

May 2026

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

Pregnant women presenting for imaging of the fetus

Ages

13 to 40 weeks

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

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.

Eligibility will be determined prior to the scan session by a pre-screening interview conducted either via telephone or in person asking about MR contraindications. Participants will be excluded from study entry or study completion when any of the following exclusion criteria are met at any time of screening or enrollment: * Claustrophobia sufficient to interfere with MRI or render the subject unable to complete an MRI scan * MRI contraindications (e.g., magnetically or mechanically activated implants) * Weight greater than or equal to 300lbs (weight limit of the MRI table) * Non-English speaking * Neurological conditions (i.e. epilepsy, multiple sclerosis, neurodegenerative diseases, memory disorders, brain tumor) * Past incidence of stroke or heart attack * Severe hypertension, blood disorders, advanced diabetes mellitus, or advanced cardiovascular disease * Hospitalization within 6 weeks prior to enrollment * Significant acute and/or chronic medical conditions, current use of medications that indicate the existence of significant medical conditions, and other unspecified reasons that make the subject unsuitable for enrollment at the discretion at the PI and a consulting MD. Pregnant mothers with the following features will be excluded. * Mothers with contraindication to MRI (such as pacemaker, metal in body, exceeding scanner weight or bore diameter limits (550lbs, 70cm)) * Mothers with claustrophobia * Mothers medically unstable for the MRI study

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Conditions

The condition(s) this trial relates to.

pregnancy disorder

As listed by the trial registrant

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

Pregnancy related

More trials for these conditions

Other studies related to the condition(s) this trial covers.