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Tiny plastics, big questions: new study probes microplastic risks for infants

NCT ID NCT06107933

Knowledge-focused Sponsor: Johns Hopkins Bloomberg School of Public Health 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 at Johns Hopkins looks at microplastic exposure in 40 mother-infant pairs in Baltimore. Researchers will test breastmilk, maternal blood, and infant stool for tiny plastic particles. They also track infant weight, length, and growth to see if microplastics are linked to development. The goal is to understand what plastics are present and how they might affect early life.

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 reveal how microplastics enter infants' bodies and whether they affect growth, pointing to ways to reduce exposure.
What could go wrong
This is a small observational study with only 40 participants, so findings may not apply to everyone. It measures exposure but cannot prove microplastics cause health problems.

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 40 people

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

Started

Oct 2023

Expected to finish

Jan 2027

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 will include 20 mother-infant pairs from Baltimore City and County. We will be studying lactating mothers at 1 or 3 months postpartum ±2 weeks.

Ages

18 years and older

Sex

Female participants only

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.

Inclusion Criteria: * All gender expressions * Mothers at 1 or 3 months postpartum (± 2 weeks) * Intent to exclusively breastfeed for ≥ 6 months * Nulliparous and singleton births * Receiving only breast milk from the mother, with no formula supplementation Exclusion Criteria: * Physical, mental, or cognitive disability that prevents participation; current incarceration * Chronic conditions in mother and/or infant (e.g., heart disease, cancer, autoimmune disease, diabetes, intestinal bowel syndrome/disease), conditions diagnosed for the first time during pregnancy (e.g. gestational diabetes), neurological conditions in mother and/or infant (e.g. epilepsy, seizures), psychological conditions in mother and/or infant (e.g. bipolar disorder), or neurological/psychological conditions diagnosed in mother during or immediately after pregnancy (e.g. postpartum depression) * Previously diagnosed with any major illness (e.g., intrauterine growth restriction, birth asphyxia, cancer) or eating disorder or previous gastric band surgery * Maternal antibiotic use during pregnancy or the postpartum period. Infant antibiotic use at any time during life or taking medications that could affect plastic exposure or the microbiome, such as medications administered via a plastic syringe. * Use of any breast pump except the Silicon Breast Pump for the 14 days prior to the clinical visit. * PHQ9 score greater than or equal to 10 indicating clinically relevant symptoms of moderate or worse depression * Infants who are intersex * Smoking, drug use (including marijuana use), or alcohol abuse

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Conditions

The condition(s) this trial relates to.

Breast Feeding

As listed by the trial registrant

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

Breast feeding Environmental exposure Infant development

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

  • East Baltimore Pediatric Inpatient and Outpatient Clinical Research Unit

    RECRUITING

    Baltimore, Maryland, 21287, United States

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