Tiny lungs, big questions: can we tell which preemies benefit from water pills?
NCT ID NCT05898022
First seen Jun 27, 2026 · Last updated Jul 15, 2026 · Updated 2 times
Summary
This study looked at a new method to find out if diuretics (water pills) help individual premature babies with a chronic lung condition called bronchopulmonary dysplasia (BPD). Researchers enrolled 19 very premature infants and used a special 'N-of-1' approach, where each baby was switched between the drug and a placebo to see if they truly responded. The goal was to gather information to design a larger study, not to prove the drug works long-term.
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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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19 people
The number who actually took part.
- Started
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Aug 2023
- Finished
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Dec 2025
- 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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2 to 10 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.
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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.
Inclusion Criteria: 1. \<28 weeks gestation at birth 2. Post-Menstrual Age (PMA) of 29-32 weeks gestation 3. Requiring invasive positive pressure respiratory support or NIPPV/NIMV and FiO2 ≥ 25% or requiring non-invasive positive pressure respiratory support (NCPAP≥ 5 cm H20, BiPhasic CPAP) and FiO2 ≥ 30%. 4. Receiving enteral feedings of 120 mL/kg/day or greater 5. Expected to be hospitalized for at least 28 days after enrollment Exclusion Criteria: 1. Major congenital anomalies (e.g., known renal anomalies, congenital heart disease, congenital diaphragmatic hernia, or chromosomal anomalies) 2. In infants who had electrolyte testing in the week prior to enrollment, those with a serum creatinine \> 1.7 mg/dL, BUN \>50 mg/dL, Na \<125 mmoL/L, K ≤ 2.5 mmol/L, or Ca ≤ 6 mg/dL. Not having electrolyte testing in the week prior to enrollment is not an exclusion criterion. 3. Current treatment with Dexamethasone or hydrocortisone for respiratory failure. Treatment with chronic steroids for history of adrenal insufficiency or cardiovascular instability is not an exclusion criterion. 4. Treatment with any longer-acting diuretic (e.g., chlorothiazide, hydrochlorothiazide, acetazolamide) within 5 days of enrollment where exposure may result in carryover effects that confound the N-of-1 trial 5. Active order for standing, regularly scheduled diuretics (e.g., chronic diuretics) 6. Non-English speaking 7. Current treatment with ibuprofen or indocin
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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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Case Western Reserve University, Rainbow Babies and Children's Hospital
Cleveland, Ohio, 44106, United States
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Cincinnati Children's Hospital Medical Center
Cincinnati, Ohio, 45229, United States
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Emory University
Atlanta, Georgia, 30303, United States
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RTI International
Durham, North Carolina, 27705, United States
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Other studies related to the condition(s) this trial covers.
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