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ClinicalTrials.gov 17 recruiting now later-stage tilt

Breastfeeding: later-stage trial registry

17 of 37 indexed Breastfeeding trials are currently recruiting, with more weight in Phase 3-4.

Corpus placement: #406 of 28,707 conditions by registered trial count.

37 US clinical trials · 17 currently recruiting · #406 of 28,707 conditions by registered trial count

Breastfeeding: 37 US clinical trials tracked, 17 recruiting.

Breastfeeding is the subject of 37 registered US clinical trials on ClinicalTrials.gov, 17 of them currently open to new participants. 2 are in Phase 3-4 (later-stage) and 1 in Phase 1-2 (earlier-stage). The most active sponsor is University of California, Davis, running 3 of these trials.

Enrollment posture brief

Registry condition breastfeeding

OPEN 17 | RECR 46% | LATE 2 | EARLY 1 | RANK #406 | SPON 3

Nearest open-share peer: Headache (46% recruiting · 37 trials)

Biliary Tract Cancer64.9%Breastfeeding (this)46%Graft Vs Host Disease32.4%Chronic Obstructive Pulmonar29.7%Burns24.3%
Open-enrollment share among volume-matched conditions near Breastfeeding

Breastfeeding lists 17 open slots (46% of 37 indexed trials). Peers are matched on registered volume, not therapeutic-area browse lists. How peer matching works →

Key findings

What ClinicalTrials.gov does not surface for Breastfeeding on its own pages , computed from the registry mirror as of 2026-08-08. Each line carries its own denominator so it can be quoted as it stands.

  1. Breastfeeding is recruiting above its size-band peers.

    17 of 37 indexed trials (45.9%) are open to enrollment, against a 39.7% average across 762 conditions with 20-99 trials. The peer set uses the same ClinicalTrials.gov-derived counts as this page.

  2. Sponsorship of Breastfeeding trials is spread across many organizations.

    University of California, Davis accounts for 3 of 37 trials (8.1%). 31 distinct sponsors appear on at least one study for this condition label.

  3. Typical Breastfeeding enrolment sits around 176 participants.

    Median target enrolment is 176 among the 37 trials that report a genuine target (sentinel values excluded). 14 of those (37.8%) plan for fewer than 100 participants.

  4. Breastfeeding research is mostly interventional.

    31 interventional and 6 observational studies make up this index (83.8% interventional). Study type is sponsor-reported on ClinicalTrials.gov.

Phase 11Phase 42

Open and recent trials

37 total, page 1 of 1

RECRUITING 5,000 participants

Researchers At UC San Diego Are Learning About the Benefits of Human Milk and How It Influences Infant and Child Health

University of California, San Diego

NCT05553743

RECRUITING NA 3,000 participants

Support Via Online Social Networks to Promote Safe Infant Care Practices

University of Virginia

NCT05767658

RECRUITING 1,150 participants

Understanding Practices of Lactation and Infant Feeding Together With Women With HIV in the United States

International Maternal Pediatric Adolescent AIDS Clinical Trials Group

NCT07293559

RECRUITING NA 990 participants

Furthering Equity Through Infant Feeding EDucation and Support

Endeavor Health

NCT05441709

RECRUITING NA 500 participants

Development of the Couplet Care Bassinet

Johns Hopkins University

NCT06533449

RECRUITING NA 246 participants

Mayo Clinic Health System Northwest Wisconsin Integrated Maternal Postpartum Appointment Combination

Mayo Clinic

NCT06395168

RECRUITING NA 240 participants

Effect of Prenatal and Postnatal Intervention Strategies on Breastfeeding Outcomes in Women With Excessive Weight (Ready, Set, Nourish Study)

Arkansas Children's Hospital Research Institute

NCT06929091

RECRUITING 240 participants

At-the-Breast vs. Expressed Human Milk: Genesis of Infant Nutrition (BEGIN)

University of Rochester

NCT06691932

RECRUITING NA 200 participants

Postnatal Exercise to Activate Baby's Brown Fat

Joslin Diabetes Center

NCT07467694

RECRUITING Phase 4 100 participants

Postpartum Vaginal Estrogen for Breastfeeding Patients

University Hospitals Cleveland Medical Center

NCT05457972

RECRUITING NA 70 participants

Pumping to Up Maternal Milk Production for Preterms

University of Alabama at Birmingham

NCT06673160

RECRUITING NA 40 participants

Sodium Awareness in Lactation Trial

The Hospital for Sick Children

NCT06563726

RECRUITING NA 40 participants

Starting Early to Prevent Obesity Using Telehealth (StEP OUT): Intervention Development Trial

Northwell Health

NCT06486922

RECRUITING 40 participants

Developmental Impacts of Microplastics Exposure in Early Life

Johns Hopkins Bloomberg School of Public Health

NCT06107933

RECRUITING NA 20 participants

Early Life Exposures Among Children With Sickle Cell Disease

University of Alabama at Birmingham

NCT05377372

RECRUITING 20 participants

Mavacamten Pregnancy Surveillance Program

Bristol-Myers Squibb

NCT05939700

RECRUITING Phase 1 10 participants

Excretion of Rivaroxaban in Human Breast Milk

Thomas Jefferson University

NCT06831474

ACTIVE NOT RECRUITING Phase 4 500 participants

Tshireletso: Safety, Efficacy and Feasibility of Cabotegravir-LA PrEP in a Breastfeeding Population in Botswana

Beth Israel Deaconess Medical Center

NCT05986084

ACTIVE NOT RECRUITING 120 participants

A Study of Melatonin Concentration During Lactation

Mayo Clinic

NCT06393296

ACTIVE NOT RECRUITING NA 120 participants

Community Interventions to Improve Breastfeeding

University of Mississippi Medical Center

NCT05503069

COMPLETED NA 2,682 participants

Using the Electronic Health Record to Guide Management of Newborn Weight Loss

University of California, San Francisco

NCT03655314

COMPLETED NA 2,108 participants

The Impact of Telelactation Services on Breastfeeding Outcomes

RAND

NCT04856163

COMPLETED NA 1,296 participants

Breast for Success: A Family-Centered Intervention in Support of Breastfeeding Among High-risk Low-income Mothers

University Hospitals Cleveland Medical Center

NCT01272661

COMPLETED NA 666 participants

Boosting Breastfeeding in Low-Income, Multi-ethnic Women: A Primary Care Based RCT

Albert Einstein College of Medicine

NCT00619632

COMPLETED NA 522 participants

Hospital-based Paraprofessional Lactation Clinic

Baylor College of Medicine

NCT00474422

COMPLETED NA 451 participants

Healthy Moms: Prenatal Counseling for Postpartum Health

University of California, Davis

NCT04601987

COMPLETED NA 248 participants

Doula Support for Young Mothers: A Randomized Trial

University of Chicago

NCT01925664

COMPLETED NA 203 participants

Home Visiting for Low Income, Pregnant Women

University of California, Los Angeles

NCT01687634

COMPLETED NA 176 participants

Lactation Cookie Study

Indiana University

NCT04805008

COMPLETED NA 162 participants

Postpartum Visit Timing and the Effect on Visit Attendance

Women and Infants Hospital of Rhode Island

NCT05399784

COMPLETED NA 70 participants

Meditation for NICU Moms

St. Louis University

NCT03574766

COMPLETED NA 50 participants

Evaluation of Health Professional Learners' Competence in Newborn Positioning and Attachment Following a Standardized Patient-led Lactation Skills Workshop

LiquidGoldConcept

NCT04717128

COMPLETED NA 50 participants

South Carolina WIC Telehealth Solution

Tufts University

NCT05887869

COMPLETED NA 46 participants

Breastfeeding Education in the Time of COVID-19

University of California, Davis

NCT04519216

COMPLETED NA 40 participants

A Technological Approach to Improved Breastfeeding Rates and Self-Efficacy

Augusta University

NCT05673317

COMPLETED NA 40 participants

Effect of Early Limited Formula Use on Breastfeeding Outcomes

University of California, San Francisco

NCT00952328

COMPLETED NA 39 participants

FamilyLink and Breastfeeding

University of California, Davis

NCT03957941

Phase Distribution

PhaseTrial count
Phase 1 1
Phase 4 2

Named interventions

Most-linked intervention names on Breastfeeding records (sponsor-reported on ClinicalTrials.gov). Counts are trial links, not unique products.

Breastfeeding Behavioral
2 trials
Enhanced Curriculum +Father Support Behavioral
1 trials
Enhanced Curriculum+Breastfeeding Doula Behavioral
1 trials
Enhanced Curriculum Behavioral
1 trials
Telesimulation Behavioral
1 trials
Health Information Mailings Behavioral
1 trials
In-home Mentor Mother visits Behavioral
1 trials
NEWT Other
1 trials

US sites by state

Facility locations filed on Breastfeeding trials. A trial with sites in several states counts in each.

California 8 trials
New York 4 trials
Massachusetts 4 trials
Maryland 3 trials
Illinois 3 trials
Wisconsin 2 trials
Ohio 2 trials
Georgia 2 trials

Source: ClinicalTrials.gov, National Library of Medicine. Data is informational only.

What to do with this Breastfeeding page

37 registered trials, 17 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.

Trial and recruiting counts reflect ClinicalTrials.gov registry status as of the data vintage above; individual trial eligibility and enrollment status can change.

Every figure on PlainTrial is rendered directly from the ClinicalTrials.gov registry, no number is typed in by an editor. This Breastfeeding condition card totals 37 registered trials; most-linked intervention Breastfeeding; top US site state California. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.