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NCT Number: NCT04037514

Paracetamol Versus Ibuprofen in Premature Infants With Hemodynamically Significant Patent Ductus Arteriosus

Multicentric, double-blind clinical trial, which will evaluate the efficacy of iv paracetamol versus standard treatment with ibuprofen in the closure of patent ductus arteriosus in the preterm newborn. Secondarily, we intend to compare the safety of both treatments, increase our knowledge about the pharmacokinetics, pharmacodynamics and pharmacogenetics of paracetamol and ibuprofen in the neonatal period and make a pharmacoeconomic assessment of the use of both drugs.

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Key information

Age range

Up to 14 day

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 3

Primary location

Hospital Reina Sofía, Córdoba, Cordoba, Spain

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About this study

Those newborns ≤ 30 weeks of gestational age who are diagnosed in the first 2 weeks of hemodynamically significant ductus arteriosus and who do not meet any exclusion criteria will be eligible to participate in the study.

The PARACETAMOL group will receive intravenous doses of 15 mg/kg administered every 6h for 3 days (up to a maximum of 2 courses, i.e. 6 days). The IBUPROFEN group (control group) will receive the usual treatment, this is an initial dose of 10 mg/kg followed by 5 mg/kg intravenously at 24 and 48 hours after the first (all three doses are considered a treatment course), up a maximum of 2 courses).

A daily echocardiographic control will be performed to evaluate the closure of the ductus. If the ductus remains open and with significant clinical repercussion after completing a 3-day course of treatment, another batch of 3 doses of the same treatment will be administered. If medical treatment fails after two courses (6 days), the possibility of administering a batch of Ibuprofen at usual doses in both groups with the intention of offering standard treatment to all patients will be considered. Once the medical treatment with both drugs is completed if the ductus remains significant, the surgical closure will be carried out.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Written Informed consent of parents/guardians
  • Gestacional Age ≤30 weeks
  • Postnatal age ≤ 2 weeks
  • Need for ventilatory support
  • Born in participating hospital/arrival to them within the period of application of the treatment
  • 1 st episode of hemodynamically significant Patent Ductus Arteriosus

Exclusion criteria

  • Major congenital malformations or chromosomopathies
  • Refusal to participate and / or sign the informed consent.
  • Impossibility or erroneous randomization
  • Participation in another clinical trial with drugs
  • Diuresis less than 1 ml / kg / h for 8 h prior to treatment
  • Greater than 1.8 mg / dl Creatinine
  • Platelets below 50,000 / uL
  • Active bleeding (tracheal, gastrointestinal and renal)
  • Intraventricular hemorrhage recently (48h) (grades 3-4)
  • Severe hyperbilirubinemia
  • Liver failure or severe coagulopathy
  • Active necrotizing enterocolitis or intestinal perforation
  • Septic shock
  • Imminent death

Treatment and study plan

Paracetamol

Drug

Intravenous paracetamol 15 mg/kg/6h

Ibuprofen

Drug

Intravenous ibuprofen 10 mg/kg/24h (day 1) and 5 mg/kg/24h (day 2 and 3)

Primary outcomes

  1. Rate of closure of the hsPDA after treatment with paracetamol (experimental drug) versus ibuprofen (control drug).

    Time frame: 24-48 hours after the completion of study intervention

    It will include the closure rate after the first course of treatment, considered as ductus diameter < 1 mm monitored by echocardiography performed by a pediatric cardiology specialist.

Secondary outcomes

  1. Need for a second course of treatment

    Time frame: from randomization until discharge, an average of 2 months

  2. Closure rate after two treatment courses

    Time frame: from randomization until discharge, an average of 2 months

  3. Need for rescue treatment after two courses of treatment

    Time frame: from randomization until discharge, an average of 2 months

  4. Reopening rate after closure

    Time frame: from randomization until discharge, an average of 2 months

  5. Closing rate after reopening

    Time frame: from randomization until discharge, an average of 2 months

  6. Time required until closing

    Time frame: from randomization until discharge, an average of 2 months

  7. Need for surgical ligation

    Time frame: from randomization until discharge, an average of 2 months

  8. Incidence of early complications

    Time frame: from randomization until discharge, an average of 2 months

    oliguria, renal failure, necrotizing enterocolitis, intraventricular hemorrhage, hyperbilirubinemia, gastrointestinal bleeding or perforation

  9. Incidence of late complications

    Time frame: from randomization until 2 years

    bronchopulmonary dysplasia, periventricular leukomalacia, necrotizing enterocolitis, retinopathy of the newborn, neurodevelopmental assessment, sepsis, death

  10. Pharmacodynamics model of paracetamol in the context of hsPDA: Maximum Plasma Concentration [Cmax]

    Time frame: 24-48 hours after the completion of study intervention

    Relation of effectiveness/adverse reactions to serum levels

  11. Pharmacodynamics model of paracetamol in the context of hsPDA: Minimum Plasma Concentration [Cmin]

    Time frame: 24-48 hours after the completion of study intervention

    Relation of effectiveness/adverse reactions to serum levels

  12. Pharmacodynamics model of paracetamol in the context of hsPDA: Area Under the Curve [AUC])

    Time frame: 24-48 hours after the completion of study intervention

    Relation of effectiveness/adverse reactions to serum levels

  13. Pharmacodynamics model of paracetamol in the context of hsPDA: urine metabolites

    Time frame: 24-48 hours after the completion of study intervention

    Quantification of metabolites in urine and its relationship with drug elimination/metabolism

  14. Pharmacogenetics of paracetamol

    Time frame: 24-48 hours after the completion of study intervention

    Genetic polymorphisms in TFAP2B, TGFBR2, EPAS1, MD-2 and GM2A genes related to efficacy/occurrence of adverse reactions

  15. Price-effectiveness ratio. Cost-effectiveness analysis depending on the efficiency obtained in the treatment.

    Time frame: from randomization until discharge, an average of 2 months

  16. Genotoxicity mesured by %DNA damage

    Time frame: from randomization until discharge, an average of 2 months

Sponsors and collaborators

Lead sponsor

Máximo Vento Torres

Other

Collaborators

  • Instituto de Investigacion Sanitaria La Fe
  • Spanish Clinical Research Network - SCReN

Registry information

Official study title

Paracetamol Versus Ibuprofen in Premature Infants With Hemodynamically Significant Patent Ductus Arteriosus: a Randomized Clinical Trial

Acronym: IBUPAR

Important dates

Study start
2017
Primary completion
2024
Study completion
2024
First posted
Jul 30, 2019
Registry last updated
Dec 18, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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