MAGIC Trial: Human Milk and Growth in Very Preterm Infants

This study, called MAGIC (Milk And Growth In Children), is looking at how different amounts of human milk feeding affect the growth of very preterm infants (babies born between 27 and 31 weeks of pregnancy). Researchers want to see if feeding 180-200 mL/kg/day of human milk (either from the mother or a donor) helps babies gain more fat-free mass (muscle and bone) compared to feeding 140-160 mL/kg/day. They will measure this at 36 weeks post menstrual age (the age the baby would be if born at full term) or when the baby leaves the hospital. To join, babies must be 6 hours to 4 days old, born between 27 and 31 weeks of pregnancy, weigh 1500 grams or less at birth, and be able to drink human milk. The study is currently unclear on its recruitment status.

Study design
This is a randomized study, meaning participants are assigned by chance to one of two feeding groups. It plans to enroll 486 participants.
What's involved
Participants will receive one of two human milk feeding volumes until 34 weeks corrected age. They will have four body composition assessments, four stool samples collected, four maternal breastmilk samples collected, and one blood sample collected.
Compensation
Not stated in the trial record.
Follow-up
Parents have the option to complete a follow-up survey when their child is 2-3 years old.

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NCT06420531

Milk And Growth In Children (MAGIC) Born Very Preterm: A Randomized Trial

Recruiting
NAAges 6–4InterventionalTreatment
University of Alabama at Birmingham
~486 participants
Updated 2026-06-15 on ClinicalTrials.gov
What's tested:Human milk

At a glance

Recruiting sites
1 of 4 listed sites are recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Fat-free Mass (FFM)-For-age-Z-score
Measured over 36 weeks post menstrual age or hospital discharge, up to 120 days following birth, whichever is longer
Prematurity
4 sites across 3 states
Texas2
Alabama1
Mississippi1
  • Ariel A. Salas, MD, MSPH · PRINCIPAL_INVESTIGATOR · UAB Hospital

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Eligibility criteria

Inclusion

Gestational age between 27 0/7 and 31 6/7 weeks
Birthweight of 1500 grams or less
Human milk feeding during the first 14 days after birth
Full enteral feeding (120mL/kg/day or more) within the first 14 days after birth

Exclusion

Necrotizing enterocolitis stage 2 or greater
Spontaneous intestinal perforation
Major congenital/chromosomal anomalies
Terminal illness requiring limited or withheld support
Intention to restrict fluid intake after the first 14 postnatal days due to the presence of a symptomatic patent ductus arteriosus (PDA)
Any formula feeding within the first 14 days after birth
  • Fat-free Mass (FFM)-For-age-Z-score36 weeks post menstrual age or hospital discharge, up to 120 days following birth, whichever is longer

    Estimated by bioelectric impedance analysis. FFM measurements will be converted into Z-scores using updated, sex specific reference curves of body composition in preterm infants