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Scientists launch study to unravel rare MEHMO syndrome

NCT ID NCT06019182

Knowledge-focused Sponsor: Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 observational study follows 150 people with MEHMO syndrome or related conditions to better understand how the disease progresses. Researchers will collect medical history, imaging, and lab samples to find biological markers that could help monitor the disease. No treatment is given, but the goal is to lay the groundwork for future therapies.

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 successful, this study could identify key markers to track disease progression, paving the way for future treatment trials.
What could go wrong
This is an early observational study, not a treatment trial. It may not lead directly to therapies, and results may take years to apply.

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 150 people

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

Started

Oct 2023

Expected to finish

Sep 2053

An estimate. End dates often move.

Lead sponsor

A government research agency

The lead sponsor is the US National Institutes of Health.

Who can take part

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

Who is studied

Inclusion Criteria: An individual must be \> 1-week of age if affected, or \> 1-month of age if unaffected. For Screening: Have a combination of signs/symptoms suggestive of MEHMO syndrome, AND no or inconclusive molecular testing. For Main Study: 1. Have a combination of signs/symptoms suggestive of MEHMO syndrome, AND disease-associated variant(s) or variant(s) of uncertain significance in one of the eIF2-pathway related genes OR 2. Be a first-degree relative of an individual with EIF2S3-related MEHMO syndrome, AND a carrier of the pathogenic or likely pathogenic variant. OR 3. Be a non-affected, non-carrier family member of an individual with MEHMO syndrome or an eIF2-pathway related condition. Exclusion Criteria: Any individual who, in the opinion of the Investigators, is unable to comply with the protocol or have medical conditions that would potentially increase the risk of participation.

Ages

1 week to 100 years

Sex

Anyone

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: To be eligible to participate in this study, an individual must meet the following criteria: Be \>= 1-week of age if affected, or \>=1-month of age if unaffected. For Screening: 1. Have a combination of signs/symptoms suggestive of MEHMO syndrome, AND no or inconclusive molecular testing. OR 2. Be a relative of an individual with MEHMO syndrome/eIF2-related condition and whose genetic may be informative for research. For Main Study: 1. Have a combination of signs/symptoms suggestive of MEHMO syndrome, AND disease-associated variant(s) or variant(s) of uncertain significance in one of the eIF2-pathway related genes OR 2. Be a relative of an individual with MEHMO syndrome/eIF2-related condition, AND a carrier of the pathogenic or likely pathogenic variant. OR 3. Be a non-affected, non-carrier family member of an individual with MEHMO syndrome or an eIF2-pathway related condition. EXCLUSION CRITERIA: Any individual who, in the opinion of the Investigators, is unable to comply with the protocol or have medical conditions that would potentially increase the risk of participation will be excluded from participation in this study.

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Conditions

The condition(s) this trial relates to.

central nervous system malformation epilepsy hypogonadism intellectual disability MEHMO syndrome microcephaly Obesity obesity disorder

As listed by the trial registrant

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

Epilepsy Hypogonadisms Intellectual disability Microcephaly Nervous system malformations Obesity

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

  • National Institutes of Health Clinical Center

    RECRUITING

    Bethesda, Maryland, 20892, United States

More trials for these conditions

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