The dark side of ibuprofen in the treatment of patent ductus arteriosus: could paracetamol be the solution?

Effectiveness and safety of rectal dexibuprofen versus oral ibuprofen for closure of patent ductus arteriosus in preterm infants with gestational age<34 weeks: A pilot study

This pilot study aimed to explore the effectiveness and safety of dexibuprofen suppository in the treatment of PDA in preterm infants. Preterm infants with gestational age <34 weeks and color Doppler echocardiographic evidence of hemodynamically significant PDA (hs PDA) with systemic hypoperfusion was intended to be included into this study since January 2020. As of January 1, 2021, this trial had recruited 87 preterm infants who met the inclusion criteria. Neonates were admitted into hospital within 1 hour after birth and were randomly assigned into two groups. Group one included 44 preterm newborns administered with oral ibuprofen. Group two included 43 preterm newborns administered with dexibuprofen suppository. This preliminary study showed that rectal dexibuprofen and oral ibuprofen were both effective for the closure of PDA, and the closure rate of dexibuprofen suppository was comparable to that of oral ibuprofen after the 1st and 2nd courses of treatment. In addition, rectal dexibuprofen did not increase the incidence of adverse outcomes, including bronchopulmonary dysplasia, intraventricular hemorrhage, sepsis, and necrotising enterocolitis. This pilot study showed dexibuprofen suppository is as effective and safe as oral ibuprofen; yet, better designed, muticenter controlled studies are still needed.

Racing against time: leveraging preclinical models to understand pulmonary susceptibility to perinatal acetaminophen exposures

Over the past decade, clinicians have increasingly prescribed acetaminophen (APAP) for patients in the neonatal intensive care unit (NICU). Acetaminophen has been shown to reduce postoperative opiate burden, and may provide similar efficacy for closure of the patent ductus arteriosus (PDA) as nonsteroidal anti-inflammatory drugs (NSAIDs). Despite these potential benefits, APAP exposures have spread to increasingly less mature infants, a highly vulnerable population for whom robust pharmacokinetic and pharmacodynamic data for APAP are lacking. Concerningly, preclinical studies suggest that perinatal APAP exposures may result in unanticipated adverse effects that are unique to the developing lung. In this review, we discuss the clinical observations linking APAP exposures to adverse respiratory outcomes and the preclinical data demonstrating a developmental susceptibility to APAP-induced lung injury. We show how clinical observations linking perinatal APAP exposures to pulmonary injury have been taken to the bench to produce important insights into the potential mechanisms underlying these findings. We argue that the available data support a more cautious approach to APAP use in the NICU until large randomized controlled trials provide appropriate safety and efficacy data.

Comparative safety and efficacy of paracetamol versus non-steroidal anti-inflammatory agents in neonates with patent ductus arteriosus: a systematic review and meta-analysis of randomized controlled trials

AIM

Ibuprofen and indomethacin are the preferred drug treatment for patent ductus arteriosus (PDA) in preterm neonates. The comparative safety and efficacy of paracetamol as an alternative has not yet been well-established. The aim of our study was to define the comparative efficacy and safety of paracetamol versus ibuprofen and indomethacin for PDA METHODS: We performed a systematic literature search in Pubmed, Scopus and Cochrane databases on randomized controlled trials comparing the efficacy and/or the safety of paracetamol versus ibuprofen and/or indomethacin and meta-analyzed the available data.

RESULTS

There were 1718 neonates from 20 eligible studies. Paracetamol did not differ from ibuprofen or indomethacin regarding the primary [OR: 0.93 (95% CI: 0.69-1.26), p-value: 0.650, when compared to ibuprofen, and OR: 0.78 (95% CI: 0.20-3.02), p-value: 0.716, when compared to indomethacin] and overall [OR: 1.17 (95% CI: 0.82-1.66), p-value: 0.394, when compared to ibuprofen, and OR: 1.12 (95% CI: 0.58-2.15), p-value: 0.733, when compared to indomethacin] PDA closure rates. Paracetamol resulted in significantly reduced risk of oliguria and a tendency towards less gastrointestinal bleeding.

CONCLUSION

There was no significant difference between paracetamol and ibuprofen or indomethacin in the PDA closure rates. However, paracetamol caused less adverse effects.

The efficacy and safety of oral paracetamol versus oral ibuprofen for patent ductus arteriosus closure in preterm neonates - A systematic review and meta-analysis

OBJECTIVE

This systematic review and meta-analysis aimed to synthesize the latest evidence on the efficacy and safety of oral acetaminophen compared to oral ibuprofen for patent ductus arteriosus (PDA) in preterm infants.

METHODS

We performed a systematic literature search on topics that assesses the use of oral paracetamol compared to oral ibuprofen in preterm neonates diagnosed with PDA from PubMed, EuropePMC, Cochrane Central Database, ScienceDirect, ProQuest, ClinicalTrials.gov, and hand-sampling from potential articles.

RESULTS

There were 1547 subjects from 10 selected studies. Primary closure rate was similar in both groups. Subgroup analysis on studies enrolling neonates with ≤30 weeks gestational age showed that ibuprofen was superior (OR 0.52 [0.31, 0.90], I2: 0%). On the other hand, paracetamol was superior neonates with ≤34 weeks gestational age (OR 1.73 [1.01, 2.94], I2: 30%). Reopening rate, surgical closure rate, mortality, intraventricular hemorrhage, and necrotizing enterocolitis were similar in both groups. Rate of renal dysfunction (OR 0.27 [0.10, 0.77], I2: 0%) and gastrointestinal bleeding (OR 0.31 [0.11, 0.88], I2: 0%) were lower in paracetamol group. Subgroup analysis of randomized controlled studies (RCTs) showed similar results. Meta-regression analysis showed that the primary closure rate was not influenced by gestational age, birth weight, and gender. GRADE demonstrates a low level of certainty for primary closure and mortality. Renal dysfunction and gastrointestinal bleeding havea moderate level of certainty.

CONCLUSION

There was no significant difference between the efficacy of oral paracetamol and oral ibuprofen. However, the rate of renal dysfunction and gastrointestinal bleeding were higher in oral ibuprofen.

Paracetamol vs. Ibuprofen in Preterm Infants With Hemodynamically Significant Patent Ductus Arteriosus: A Non-inferiority Randomized Clinical Trial Protocol

Background: Currently, the first line treatment of persistent ductus arteriosus (PDA) is either indomethacin or ibuprofen. However, the potentially life-threatening side effects associated to their use have prompted physicians to look for alternative options. The incorporation of paracetamol as an alternative to ibuprofen in the management of PDA is still based on insufficient clinical evidence. Hence, more clinical trials are needed to establish a therapeutic role for paracetamol in the management of PDA that take into consideration short- and long-term safety and efficacy outcomes. Study Design: This is a non-inferiority, randomized, multicenter, double-blinded study to evaluate the efficacy, and safety of intravenous (IV) paracetamol vs. IV ibuprofen (standard treatment) for PDA in preterm patients with a gestational age ≤ 30 weeks. At baseline, patients will be randomized (1:1) to treatment with paracetamol or ibuprofen. The primary endpoint is closure of the ductus after the first treatment course. Secondary endpoints are related to effectiveness (need for a second treatment course, rescue treatment, reopening rate, time to definitive closure, need for surgical ligation), safety (early and long-term complications), pharmacokinetics, and pharmacodynamics, pharmacogenetics, pharmacoeconomics, and genotoxicity. Long-term follow-up to 24 months of corrected postnatal age will be performed using Bayley III neurodevelopmental scale. Trial Registration: ClinicalTrials.gov Identifier: NCT04037514. EudraCT: 2015-003177-14.

Oral ibuprofen is superior to oral paracetamol for patent ductus arteriosus in very low and extremely low birth weight infants

Paracetamol (acetaminophen) has been proposed as an alternative medication for closing hemodynamically significant patent ductus arteriosus (PDA). However, the clinical outcomes remain inconclusive in very low birth weight (VLBW) and extremely low birth weight (ELBW) infants.The aim of this study was to compare the efficacy and safety of oral paracetamol and ibuprofen for pharmacological closure of PDA in premature infants from a real-world study.This retrospective study enrolled 255 preterm infants with birthweights of ≤1.5 kg, and echocardiographically confirmed significant PDA. Subjects were classified into 3 groups: Group I (standard-dose ibuprofen group) received 10 mg/kg oral ibuprofen followed by 5 mg/kg/day for 2 days. Group II (high-dose ibuprofen group) received 10 mg/kg/day oral ibuprofen for 3 days. Group III (paracetamol group) received 15 mg/kg/6 h oral paracetamol for 3 days.On day 9 after medication start, PDA closure was achieved in 61 (71.7%) patients assigned to the high-dose ibuprofen group, (63.8%) in the standard-dose ibuprofen group, and 33 (37.9%) of those in the oral paracetamol group (P <.001). Oral standard-dose ibuprofen was more effective than oral paracetamol (P = .001). The ductus closed faster in the high-dose ibuprofen group than in the standard-dose group (median closure time 3.9 ± 1.0 versus 4.4 ± 1.0 days, P = .009). Total bilirubin significantly increased in the high-dose ibuprofen group (P = .02). No gastrointestinal, renal, or hematological adverse effects were reported. Subgroup analyses indicated paracetamol was minimally effective in ELBW infants (PDA closure 13%).This study demonstrated that paracetamol may be a poor medical alternative for PDA management in VLBW and ELBW infants. High dosage ibuprofen was associated with a faster clinical improvement and higher rate of PDA closure.

Practice for preterm patent ductus arteriosus; focusing on the hemodynamic significance and the impact on the neonatal outcomes

Hemodynamically significant preterm patent ductus arteriosus (PDA) affects mortality; comorbidities such as necrotizing enterocolitis, intraventricular hemorrhage, and bronchopulmonary dysplasia; and adverse long-term neurodevelopmental outcomes in preterm infants, particularly in very low birth weight infants. However, recent studies have indicated that there is no consensus on the causal relationship between PDA and neonatal outcomes, the benefit of PDA treatment, the factors guiding the need for treatment, and optimal treatment strategies. Such uncertainty has resulted in wide variations in practice for treating preterm PDA between units, regions, and nations. Nowadays, there has been a paradigm shift to more conservative treatment for preterm PDA, and suggestions regarding selective management of preterm PDA considering risk factors and hemodynamic significance are increasing. Neonatologist-performed echocardiography and advances in modalities to assess hemodynamic significance such as biologic markers and near-infrared spectroscopy also help improve the efficacy of selective treatment of preterm PDA.