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Breastfeeding clinical trials recruiting in the U.S.
34 studies for Breastfeeding are recruiting participants at sites across the United States.
Breastfeeding gives your baby the right nutrients and may protect your baby against some illness. Learn about all its benefits and how to breastfeed.
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Recently updated studies
Effect of Prenatal and Postnatal Intervention Strategies on Breastfeeding Outcomes in Women With Excessive Weight (Ready, Set, Nourish Study)
Recruiting
Ages 18 and older · Women · Updated Sep 24, 2026 · NCT06929091Pregnancy and Postpartum Breastfeeding Support for Patients With Gestational Diabetes
RecruitingObservational studyHealthy volunteers welcome
Ages 18 and older · All sexes · Updated Sep 14, 2026 · NCT07176793Alcohol, Breast Cancer, and Metabolism
RecruitingHealthy volunteers welcome
Ages 21 to 45 · Women · Updated Sep 8, 2026 · NCT07779967A Study to Measure Mirikizumab Levels in Breast Milk of Lactating Participants Receiving Mirikizumab Therapeutically for an Approved Indication
RecruitingPhase 4
3 Weeks · Women · Updated Sep 8, 2026 · NCT07612267Odevixibat Pregnancy and Lactation Surveillance Program: A Study to Evaluate the Safety of Odevixibat During Pregnancy and/or Lactation
RecruitingObservational study
All ages · Women · Updated Aug 31, 2026 · NCT06258902Emgality for Migraine in Breastmilk
RecruitingObservational study
Ages 18 to 45 · Women · Updated Aug 11, 2026 · NCT06085144Standardized Application of Feeding Evaluations Using SMART Tool
Recruiting
Up to age 1 · All sexes · Updated Jul 29, 2026 · NCT07136610Postpartum Vaginal Estrogen for Breastfeeding Patients
RecruitingPhase 4
Ages 18 to 50 · Women · Updated Jul 23, 2026 · NCT05457972Effects of GLP-1 RAs on Human Lactation Outcomes
RecruitingObservational studyHealthy volunteers welcome
All ages · Women · Updated Jul 22, 2026 · NCT07720414Pumping to Up Maternal Milk Production for Preterms
Recruiting
28 Days · All sexes · Updated Jul 16, 2026 · NCT06673160Early Life Exposures Among Children With Sickle Cell Disease
Recruiting
Ages 18 to 50 · Women · Updated Jul 15, 2026 · NCT05377372Impact of Lactation Antenatal Teaching by Clinicians and Healthcare Providers
RecruitingHealthy volunteers welcome
Ages 18 to 45 · Women · Updated Jun 23, 2026 · NCT07560553Prevention of Postpartum Smoking Relapse and Related Health Consequences by Breastfeeding Promotion
RecruitingHealthy volunteers welcome
Ages 18 and older · Women · Updated Jun 22, 2026 · NCT07661550Developmental Impacts of Microplastics Exposure in Early Life
RecruitingObservational studyHealthy volunteers welcome
Ages 18 and older · Women · Updated Jun 9, 2026 · NCT06107933Facilitating Lactation Through Optimized Workflows - Evaluating the Efficiency of Pumping Protocols and Cellular Mechanisms of Milk Production
RecruitingHealthy volunteers welcome
Ages 18 to 45 · All sexes · Updated Jun 4, 2026 · NCT07260968A Study of Prucalopride in Breastfeeding Women With Constipation
RecruitingObservational study
Ages 18 and older · Women · Updated May 1, 2026 · NCT04838522Avocado Consumption, Nutrients in Human Milk, and Infant Cognitive Development
RecruitingHealthy volunteers welcome
Ages 18 to 40 · All sexes · Updated Apr 21, 2026 · NCT06208085Synergistic Activity of Human Milk Nutrients and Infant Cognition
RecruitingHealthy volunteers welcome
3 Months – 35 Years · All sexes · Updated Apr 20, 2026 · NCT03838536Understanding Practices of Lactation and Infant Feeding Together With Women With HIV in the United States
RecruitingObservational studyHealthy volunteers welcome
All ages · All sexes · Updated Mar 27, 2026 · NCT07293559Postnatal Exercise to Activate Baby's Brown Fat
RecruitingHealthy volunteers welcome
Ages 18 to 45 · Women · Updated Mar 12, 2026 · NCT07467694Effects of a Non-nutritive Sweetener Reduction Intervention in Pregnancy and Lactation on Maternal and Infant Outcomes
RecruitingHealthy volunteers welcome
Ages 18 to 45 · Women · Updated Feb 18, 2026 · NCT06548828taVNS-Paired Breastfeeding to Improve Breastfeeding at Discharge
RecruitingHealthy volunteers welcome
35 Weeks · All sexes · Updated Feb 6, 2026 · NCT06417385Mindfulness and Meditation Based Lactation Education on Maternal Breastmilk in the Neonatal ICU
RecruitingHealthy volunteers welcome
Ages 20 and older · Women · Updated Jan 20, 2026 · NCT07351799Support Via Online Social Networks to Promote Safe Infant Care Practices
Recruiting
All ages · Women · Updated Jan 12, 2026 · NCT05767658At-the-Breast vs. Expressed Human Milk: Genesis of Infant Nutrition (BEGIN)
RecruitingObservational study
0 Days – 40 Years · All sexes · Updated Dec 11, 2025 · NCT06691932From ClinicalTrials.gov, data retrieved Sep 29, 2026. Each study sets its own eligibility; the study team decides who can join.