NICU antibiotic study questions routine use for tiniest babies
NCT ID NCT03997266
First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 2 times
Summary
This study looked at whether giving antibiotics early to extremely low birthweight babies (born before 31 weeks) might cause more harm than good. Researchers compared babies who got standard antibiotics to those who got a placebo. The goal was to see if early antibiotics increase the risk of serious infections, bowel disease, or death. The trial enrolled 359 infants and aimed to help doctors make better decisions about antibiotic use in the NICU.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Ampicillin, Gentamycin, Normal saline
- What this could lead to
- If this trial shows that early antibiotics increase risks, it could lead to safer, more selective antibiotic use in NICUs, reducing harm to fragile newborns.
- What could go wrong
- This is a completed Phase 4 trial, but results may not apply to all premature infants. The study is observational in nature, so it cannot prove cause and effect.
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.
- Phase
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Phase 4
Runs after approval, following long-term safety and how well the treatment works in everyday use.
- Participants
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359 people
The number who actually took part.
- Started
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Aug 2020
- Finished
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Jan 2026
- Lead sponsor
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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.
- Ages
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Up to 4 hours
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
I. Inclusion criteria: We will enroll newborn infants with gestational age of 23-30 weeks 6 days infants at participating study sites will be eligible. II. Exclusion criteria: 1. Infants born for maternal indications via caesarean section with rupture of membranes at delivery, without attempts to induce labor, and without concern for maternal infection 2. Infants at high risk of EOS * Infants born to mothers with intrapartum fever (\> 38C) or clinical diagnosis of chorioamnionitis * Infants born to mothers with previous infant with GBS disease/infection 3. Infants with respiratory insufficiency requiring invasive mechanical ventilation and FiO2 \> 0.40 or non-invasive ventilation and FiO2 \> 0.60 at time of randomization 4. Infants with ongoing hemodynamic instability requiring vasopressors or fluid boluses at time of randomization 5. Clinician concern infant is at high risk for sepsis due to infant physical exam findings or clinical history of mother or infant 6. Major congenital anomalies 7. Infants not anticipated to survive beyond 72 hours 8. Infants who have received antibiotics prior to randomization 9. Mothers that are \<18 years old at time of enrollment
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Alfred I. duPont for Children of the Nemours Foundation
Philadelphia, Pennsylvania, 19107, United States
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Atrium Health Wake Forest Baptist
Winston-Salem, North Carolina, 27157, United States
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Golisano Children's Hospital at University of Rochester
Rochester, New York, 14642, United States
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Magee Womens Hospital
Pittsburgh, Pennsylvania, 15213, United States
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Maria Fareri Children's Hospital at Westchester Medical Center
Valhalla, New York, 10595, United States
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Penn State Medical College
Hershey, Pennsylvania, 17033, United States
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Pennsylvania Hospital/The Children's Hospital of Philadelphia
Philadelphia, Pennsylvania, 19104, United States
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Sharp Mary Birch Hospital for Women & Newborns
San Diego, California, 92123, United States
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The Trustees of Columbia University in the City of New York
New York, New York, 10032-3702, United States
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USA Children's and Women's Hospital
Mobile, Alabama, 36688, United States
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University of Louisville Research Foundation Inc./Kosair Charities Pediatric Clinical Research Unit
Louisville, Kentucky, 40202, United States
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University of South Flordia Health
Tampa, Florida, 33606, United States
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University of Texas Health Science Center at San Antonio
San Antonio, Texas, 78229, United States
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Yale University School of Medicine
New Haven, Connecticut, 06520-8064, United States
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