New hope for tiny tummies: drug trial targets deadly infant gut disease
NCT ID NCT06315738
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests a new drug called ST266 in premature infants with necrotizing enterocolitis (NEC), a severe gut infection. The trial will include 36 babies and aims to see if the drug is safe and tolerable at two different doses. Researchers will also look for early signs that it helps the gut heal faster.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- ST266 (a biologic drug made from cells)
- What this could lead to
- If it works, this could point toward a new treatment for necrotizing enterocolitis, a life-threatening gut condition in premature infants.
- What could go wrong
- This is an early phase 1-2 trial with only 36 infants, so it is primarily testing safety. The drug may not prove effective, and there could be unknown side effects.
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 1/2
Runs two stages together: safety and dose first, then whether the treatment works.
- Participants
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About 36 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Aug 2024
- Expected to finish
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Nov 2029
An estimate. End dates often move.
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
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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2 to 8 weeks
- 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.
Show the full entry requirements Hide 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: 1. Infants born from ≥22 weeks gestational age up to and including 40 weeks gestational age; up to 40 weeks postmenstrual age (gestational age plus chronological age in terms of weeks) with current weight at diagnosis of NEC between ≥500g and ≤3000g, as a result of prematurity and/or IUGR. Parent(s)/legal medical representative(s) voluntarily provides written consent prior to study enrollment. 2. Bell's Stage IIA or higher medical NEC (Stages IIA - IIIA only) diagnosis by radiologic confirmed pneumatosis intestinalis and may include intestinal dilation and ileus. The clinician confirms NEC diagnosis by evaluation of the radiologic imaging for confirmed pneumatosis intestinalis. If X-ray is used and is equivocal, an ultrasound (US) may be used, if available, to confirm pneumatosis. If the clinician (Neonatologist and/or Pediatric Surgeon) has differing interpretation from that of the Radiologist, that should be documented in both the medical and research records for accuracy of NEC diagnosis. Exclusion Criteria: 1. Infants with abdominal perforation. 2. Not expected to survive ≥2 weeks or born with a lethal condition requiring hospice or palliative care (e.g., disease has progressed to NEC totalis, or patient has multi-organ system failure). 3. Born with major congenital anomalies such as cardiac defects (e.g., Tetralogy of Fallot) or chromosomal disorders/anomalies (e.g., neural tube defect). 4. Mother's receipt of any investigational product during pregnancy. 5. Infants with malignancies (e.g., neoplastic cell growth as a solid tumor or a blood neoplasm, such as congenital leukemia). 6. Infants with hypercoagulability disorders (any active thrombosis, diagnosis of disseminated intravascular coagulation or other acquired/inherited disorders (i.e., hemophilia) of coagulation. 7. Infants with a known immunodeficiency (such as galactosemia or agranulocytosis). 8. Infants with anatomic defects that require surgical intervention. 9. Infants with persistent pulmonary hypertension of newborn. 10. Infants with any congenital or acquired gastrointestinal pathology that preclude feeds within 7 days after birth (e.g., duodenal atresia). 11. Infants who have hypoxic ischemic injury (perinatal asphyxia). 12. Infants with polycythemia (at time of treatment) (\>22 g/dL). 13. Positive maternal human immunodeficiency virus status. 14. History of maternal drug abuse (such as amphetamines, opiates, cocaine). This does not include marijuana, or prescription medications for treatment of drug abuse. 15. Considered by the Investigator, for any reason, to be an unsuitable candidate for the study. 16. Infants diagnosed with NEC who will require immediate surgical intervention.
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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.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
8 sites. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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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
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Arkansas Children's Hospital
RECRUITINGLittle Rock, Arkansas, 72202, United States
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BayCare Health System-St. Joseph's Women's Hospital
RECRUITINGTampa, Florida, 33607, United States
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NorthShore University-Evanston Hospital
RECRUITINGEvanston, Illinois, 60201, United States
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Oklahoma Children's Hospital
RECRUITINGOklahoma City, Oklahoma, 73104, United States
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Penn State Health Milton S Hershey Medical Center/Penn State University College of Medicine
RECRUITINGHershey, Pennsylvania, 17033, United States
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University of Arkansas for Medical Sciences
RECRUITINGLittle Rock, Arkansas, 72205, United States
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University of Pittsburgh Medical Center Magee Womens Hospital
RECRUITINGPittsburgh, Pennsylvania, 15219, United States
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Yale-New Haven Hospital
RECRUITINGNew Haven, Connecticut, 06510, United States
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