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500 families join quest to unlock genetic secrets of miscarriage

NCT ID NCT05444283

Knowledge-focused Sponsor: Yale University 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 study aims to discover the genetic reasons behind recurrent pregnancy loss (RPL) by analyzing DNA from parents and pregnancy tissue. Researchers at Yale University will enroll 500 women who have had multiple pregnancy losses. The goal is to identify genetic markers that predict RPL, which could lead to better diagnosis and counseling in the future.

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 500 people

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

Started

Sep 2021

Expected to finish

Dec 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

Couples who have had two or more previous pregnancy losses and have undiagnosed cause of recurrent pregnancy loss.

Ages

18 to 50 years

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.

Cohort A - Fetal Intolerome Cohort Inclusion Criteria: * Women with loss of a current singleton pregnancy at \< 20 0/7 weeks gestation, documented by ultrasonography or histopathological examination * History of one or more prior pregnancy losses * Euploid current pregnancy confirmed by karyotype, microarray, or STORK (Short-read Transpore Rapid Karyotyping) sequencing Note: A limited number of aneuploid losses will be included as part of the pilot phase Exclusion Criteria: * History of parental karyotype abnormalities * History of antiphospholipid antibody syndrome * Evidence of uncontrolled diabetes * Evidence of uncontrolled thyroid disease * History of autoimmune disease related to pregnancy loss (e.g., systemic lupus erythematosus, rheumatoid arthritis) * History of uterine anomalies * History of cervical insufficiency Cohort B - Maternal Effect Gene Cohort Inclusion Criteria: \- Women with a history of three or more pregnancy losses of unknown cause, with or without a liveborn child Exclusion Criteria: \- Known etiology for pregnancy loss

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Conditions

The condition(s) this trial relates to.

pregnancy loss, recurrent, 4 pregnancy loss, recurrent, susceptibility

As listed by the trial registrant

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

Recurrent pregnancy loss

How to take part

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

  1. The places running it

    9 sites. 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

  • Columbia University

    RECRUITING

    New York, New York, 10032, United States

  • Johns Hopkins University

    RECRUITING

    Baltimore, Maryland, 21205, United States

  • Northwestern University

    RECRUITING

    Chicago, Illinois, 60611, United States

  • Pennsylvania State University

    RECRUITING

    Hershey, Pennsylvania, 17033, United States

  • University of Chicago

    ACTIVE_NOT_RECRUITING

    Chicago, Illinois, 60611, United States

  • University of Colorado

    RECRUITING

    Aurora, Colorado, 80045, United States

  • University of Texas at Austin

    RECRUITING

    Austin, Texas, 78712, United States

  • University of Texas at San Antonio

    RECRUITING

    San Antonio, Texas, 78299, United States

  • Wayne State University

    RECRUITING

    Detroit, Michigan, 48201, United States

  • Yale University

    RECRUITING

    New Haven, Connecticut, 06511, United States

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