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Could a simple blood test prevent repeated miscarriages?

NCT ID NCT04537416

Knowledge-focused Sponsor: Brigham and Women's 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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Last updated Jun 26, 2026

Summary

This study aims to find out how often a blood clotting disorder called thrombophilia is the cause of recurrent pregnancy loss. Researchers will review the medical records of 1,000 women aged 18-40 who have had two or more miscarriages. The goal is to improve awareness and help doctors diagnose and treat this condition earlier.

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 lead to better awareness and earlier testing for thrombophilia in women with recurrent pregnancy loss, potentially reducing the number of miscarriages.
What could go wrong
This is an observational study, not a treatment trial, so it won't directly test a new therapy. The findings may not apply to all women or lead to immediate changes in care.

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 1,000 people

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

Started

Apr 2018

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

Women at least 18 years old but not greater than 40 years old with a chief complaint of recurrent pregnancy loss

Ages

18 to 40 years

Sex

Female participants only

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: 1. Age 18-40 years 2. 2 or more pregnancy losses (including chemical pregnancies but not ectopic pregnancy) 3. Evaluated at the BWH Center for Infertility and Reproductive Surgery or the Watkins Cardiovascular Clinic Exclusion Criteria: 1. Infertility due to uterine factors (such as Asherman's Syndrome) 2. Known translocation carrier 3. Prior venous thromboembolism on anticoagulation 4. Abnormal uterine cavity on hysterosalpingogram/hysteroscopy

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Conditions

The condition(s) this trial relates to.

pregnancy loss, recurrent, susceptibility thrombophilia

As listed by the trial registrant

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

Thrombophilia

Contacts and locations

Locations

  • Brigham and Women's Hospital

    Boston, Massachusetts, 02115, United States

More trials for these conditions

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