Medications and In-hospital Outcomes in Infants Born at 22-24 Weeks Gestation

Journal of PerinatologyFebruary 2020

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Puia-Dumitrescu M, Younge N, Benjamin DK, Lawson K, Hume C, Hill K, Mengistu J, Wilson A, Zimmerman ZO, Ahmad K, Greenberg RG; on behalf of the Best Pharmaceuticals for Children Act – Pediatric Trials Network

This study evaluated the most commonly used medications and in-hospital morbidities and mortality in infants born 22-24 weeks of gestation. It was a multicenter retrospective cohort study of infants born 22-24 weeks of gestation, from 2006-2016, without major congenital anomalies and with available medication data obtained from neonatal intensive care units managed by the Pediatrix Medical Group. A large number of medications were used in periviable infants. There was a high prevalence of in-hospital morbidities, and survival of this population increased over the study period.

Use of Population Pharmacokinetics and Electronic Health Records to Assess Piperacillin-Tazobactam Safety in Infants

The Pediatric Infectious Disease Journal • September 2017

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Salerno S, Hornik CP, Cohen-Wolkowiez M, Smith PB, Ku LC, Kelly MS, Clark R, Gonzalez D; Best Pharmaceuticals for Children Act–Pediatric Trials Network Steering Committee.

Piperacillin, in combination with tazobactam, is frequently used in infants for treating nosocomial infections, although safety data in this population are limited. Electronic health record (EHR) data can be used to evaluate drug safety in infants, but measures of drug exposure are lacking. To relate simulated piperacillin exposure with adverse events (AEs) in infants using EHR data, we identified infants discharged from 333 neonatal intensive care units managed by the Pediatrix Medical Group between 1997 and 2012.

Safety of High-dose Acyclovir in Infants With Suspected and Confirmed Neonatal Herpes Simplex Virus Infections

The Pediatric Infectious Disease Journal • December 2016

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Ericson JE, Gostelow M, Autmizguine J, Hornik CP, Clark RH, Benjamin DK Jr, Smith PB; Pediatric Trials Network Executive Committee and Investigators.

Acyclovir is used to treat herpes simplex virus disease in infants. Treatment with high-dose acyclovir, 60 mg/kg/d, is recommended; however, the safety of this dosage has not been assessed in the past 15 years, and this dosage is not currently approved for infants by the US Food and Drug Administration. We included infants with neonatal herpes simplex virus disease treated with ≥14 days of intravenous acyclovir starting in the first 120 days of life admitted to 1 of 42 neonatal intensive care units managed by the Pediatrix Medical Group between 2002 and 2012.

Electronic Health Records and Pharmacokinetic Modeling to Assess the Relationship between Ampicillin Exposure and Seizure Risk in Neonates

Journal of Pediatrics • August 2016

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Hornik CP, Benjamin DK Jr, Smith PB, Pencina MJ, Tremoulet AH, Capparelli EV, Ericson JE, Clark RH, Cohen-Wolkowiez M; Best Pharmaceuticals for Children Act—Pediatric Trials Network.

This was a retrospective observational cohort study of electronic health record (EHR) data combined with pharmacokinetic model derived drug exposure predictions. We used the EHR from 348 Pediatrix Medical Group neonatal intensive care units from 1997 to 2012. We included all infants 24-41 weeks gestational age, 500-5400 g birth weight, first exposed to ampicillin prior to 25 days postnatal age. In this cohort of hospitalized infants, higher ampicillin exposure was associated with seizures as documented in the EHR.

Sildenafil and retinopathy of prematurity risk in very low birth weight infants

American Journal of Perinatology • February 2016

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Samiee-Zafarghandy S, van den Anker JN, Laughon MM, Clark RH, Smith PB, Hornik CP; Pharmaceuticals for Children Act – Pediatric Trials Network Administrative Core Committee.

We identified premature infants who were discharged from Pediatrix Medical Group neonatal intensive care units from 2003–2012 and who received an ophthalmologic exam. We matched each infant exposed to sildenafil prior to first eye exam to three non-exposed infants using propensity scoring to control for differences in baseline infant characteristics. We evaluated the association between sildenafil exposure and development of severe ROP using conditional logistic regression.

Cefepime and Ceftazidime Safety in Hospitalized Infants

The Pediatric Infectious Disease Journal • August 2015

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Arnold CJ, Ericson J, Cho N, Tian J, Wilson S, Chu VH, Hornik CP, Clark RH, Benjamin DK Jr, Smith PB; Best Pharmaceuticals for Children Act–Pediatric Trials Network Administrative Core Committee.

Cefepime and ceftazidime are cephalosporins used for the treatment of serious Gram-negative infections. These cephalosporins are used off-label in the setting of minimal safety data for young infants. We identified all infants discharged from 348 neonatal intensive care units managed by the Pediatrix Medical Group between 1997 and 2012 who were exposed to either cefepime or ceftazidime in the first 120 days of life. We reported clinical and laboratory adverse events occurring in infants exposed to cefepime or ceftazidime and used multivariable logistic regression to compare the odds of seizures and death between the 2 groups.

Rifampin use and safety in hospitalized infants

American Journal of Perinatology • May 2015

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Arnold CJ, Ericson J, Kohman J, Corey KL, Oh M, Onabanjo J, Hornik CP, Clark RH, Benjamin DK Jr, Smith PB, Chu VH; Best Pharmaceuticals for Children Act–Pediatric Trials Network Administrative Core Committee.

This study aims to examine the use and safety of rifampin in hospitalized infants. Observational study of clinical and laboratory adverse events among infants exposed to rifampin from 348 neonatal intensive care units managed by the Pediatrix Medical Group between 1997 and 2012.

Anaerobic antimicrobial therapy after necrotizing enterocolitis in VLBW infants

Pediatrics • January 2015

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Autmizguine J, Hornik CP, Benjamin DK Jr, Laughon MM, Clark RH, Cotten CM, Cohen-Wolkowiez M, Benjamin DK, Smith PB; Best Pharmaceuticals for Children Act—Pediatric Trials Network Administrative Core Committee.

To evaluate the effect of anaerobic antimicrobial therapy for necrotizing enterocolitis (NEC) on clinical outcomes in very low birth weight (≤1500 g) infants. We identified very low birth weight infants with NEC from 348 US NICUs from 1997 to 2012. Anaerobic antimicrobial therapy was defined by antibiotic exposure on the first day of NEC. We matched (1:1) infants exposed to anaerobic antimicrobial therapy with infants who were not exposed by using a propensity score stratified by NEC severity (medical and surgical).

Safety of milrinone use in neonatal intensive care units

Early Human Development • January 2015

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Samiee-Zafarghandy S, Raman SR, van den Anker JN, McHutchison K, Hornik CP, Clark RH, Smith PB; Best Pharmaceuticals for Children Act—Pediatric Trials Network Administrative Core Committee.

Milrinone use in the neonatal intensive care unit has increased over the last 10 years despite a paucity of published safety data in infants. We sought to determine the safety of milrinone therapy among infants in the neonatal intensive care unit. We conducted a retrospective data analysis, identifying all infants who were exposed to milrinone and discharged from 322 neonatal intensive care units managed by the Pediatrix Medical Group from 1997-2010.

Medication use in the neonatal intensive care unit

American Journal of Perinatology • October 2014

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Hsieh EM, Hornik CP, Clark RH, Laughon MM, Benjamin DK Jr, Smith PB; Best Pharmaceuticals for Children Act—Pediatric Trials Network.

The aim of the article is to provide an update on medication use in infants admitted to the neonatal intensive care unit (NICU) in the United States and examine how use has changed over time. We performed a retrospective review (2005-2010) of a large prospectively collected administrative database.