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CompletedNCT01754324Updated Jun 13, 2014

The Pharmacokinetics of Oral Methadone in the Treatment of Neonatal Abstinence Syndrome

An observational study in Neonatal Abstinence Syndrome, sponsored by Children's Hospital Medical Center, Cincinnati. Completed at 2 sites in United States. Open to participants aged Up to 1 Month. Per ClinicalTrials.gov, last updated 2014-06-13.

Sponsored by Children's Hospital Medical Center, Cincinnati · Observational

Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
20
Ages
Up to 1 Month
Sex
All
01

Study summary

The chronic use of opiate medications during pregnancy is a major public health challenge. Prolonged exposure to opiates in utero may result in withdrawal symptoms in infants commonly referred to as neonatal abstinence syndrome (NAS). Signs of NAS may include irritability, high-pitched crying, muscle tightness, seizures, diarrhea, vomiting, poor feeding, and unstable body temperature. Many infants may be treated by supportive (non-pharmacological) therapy by minimizing stimulation, cuddling, responding promptly to hunger cues, and other comfort care. However, some infants continue to show severe symptoms of withdrawal despite these interventions. In these cases, infants may be treated with medications (pharmacological therapy). Although it has been several decades since the first descriptions of NAS, there still remains limited information with regards to the most effective treatment. We hypothesize that medical treatment protocols of NAS with methadone can be optimized by better understanding what the body does to the drug (the population-based pharmacokinetics of methadone).

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Conditions studied

  • Neonatal Abstinence Syndrome

Keywords

  • Neonatal Abstinence Syndrome
  • Pharmacokinetics
  • Methadone
  • Neonate
  • Newborn
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In context

Neonatal Abstinence Syndrome

65 studies on the registry are indexed under Neonatal Abstinence Syndrome; 6 are open to participants now.

This study's enrollment of 20 is below the median of 50 across 15 observational studies indexed under Neonatal Abstinence Syndrome.

Browse Neonatal Abstinence Syndrome studies →

Lead sponsor

Children's Hospital Medical Center, Cincinnati is the lead sponsor of 661 studies on the registry; 134 are open to participants now.

Of its 54 completed or terminated interventional studies of FDA-regulated products, 30 (56%) have results posted.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
Up to 1 Month
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Infants diagnosed with Neonatal Abstinence Syndrome and are treated with oral methadone.

Inclusion criteria

  1. Chronic in utero exposure to opiates
  2. Term infant, greater than or equal to 37 weeks gestation
  3. Failure of non-pharmacologic treatment of NAS
  4. Infant meets criteria for pharmacologic treatment of NAS as determined by physical findings consistent with drug withdrawal and Finnegan scoring system
  5. The attending neonatologist chooses to treat the qualifying infant with oral methadone.

Exclusion criteria

Exclusion Criteria:

  1. Prematurity
  2. Congenital Abnormalities
  3. Acutely ill neonates
  4. Confounding medical illness necessitating therapy with opiates other than for NAS
  5. Neonates whose only exposure to opiates were narcotics administered during labor
  6. Infants who are wards of the state
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Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
20 participants (actual)
Patient registry
No

Groups and cohorts

  • Methadone

    All infants requiring pharmacological treatment of their NAS symptoms are treated with a standardized protocol utilizing oral methadone. This treatment protocol has been the standard of care for infants with NAS at our institution for many years. Infants enrolled in this study will have blood samples drawn at predetermined times in order to obtain information regarding the pharmacokinetics of oral methadone in this population.

    Drug: Methadone

Interventions

  • DrugMethadone

    The starting dose of the protocol is 0.05mg/kg by mouth given every 6 hours and gradually decreased in a stepwise, standardized fashion.

    Also known as: methadone hydrochloride

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What researchers measure

Primary outcomes

  1. Methadone and EDDP (2-ethylidene-1,5-dimethyl-3,3-diphenylpyrrolidine) blood concentration

    Timed blood samples will be collected to estimate pharmacokinetic parameters of oral methadone and its major metabolite EDDP using population pharmacokinetic methods.

    Time frame: Participants will be followed for the duration of the hospital stay (an expected average of 4 weeks).

Secondary outcomes

  1. Failed Protocol Wean

    Blood specimens for the analysis of methadone and EDDP concentrations will be obtained from infants who do not tolerate the standard methadone dosing taper to investigate its utility in identifying rapid metabolizers of methadone.

    Time frame: Participants will be followed for the duration of the hospital stay (an expected average of 4 weeks).

  2. Number of participants requiring adjunctive pharmacological treatment

    This endpoint will look at the number of patients who require supplemental phenobarbital in the treatment of NAS symptoms.

    Time frame: Participants will be followed for the duration of the hospital stay (an expected average of 4 weeks).

  3. Length of hospitalization

    This endpoint will describe the number of days infants were hospitalized for treatment of NAS.

    Time frame: Participants will be followed for the duration of the hospital stay (an expected average of 4 weeks).

  4. Readmission to the hospital

    This endpoint will describe the number of infants treated for NAS who later developed withdrawal symptoms after discharge that required readmission to the hospital.

    Time frame: Participants will be followed for the duration of the hospital stay (an expected average of 4 weeks) and will complete a follow-up survey up to 2 weeks after hospital discharge.

  5. Clinical resolution of NAS symptoms

    The length of medical therapy with oral methadone (in days) required to result in the clinical resolution of NAS symptoms will be measured.

    Time frame: Participants will be followed for the duration of the hospital stay (an expected average of 4 weeks) and will complete a follow-up survey up to 2 weeks after hospital discharge.

07

Study locations

2 sites
  • The University Hospital
    Cincinnati, Ohio 45229, United States
  • Mercy Hospital Anderson
    Cincinnati, Ohio 45255, United States
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References and documents

Publications

  • Wiles JR, Isemann B, Mizuno T, Tabangin ME, Ward LP, Akinbi H, Vinks AA. Pharmacokinetics of Oral Methadone in the Treatment of Neonatal Abstinence Syndrome: A Pilot Study. J Pediatr. 2015 Dec;167(6):1214-20.e3. doi: 10.1016/j.jpeds.2015.08.032. Epub 2015 Sep 11. PubMed 26364984 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jun 13, 2014, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT01754324
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Collaborators
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
Responsible party
Jason Wiles, MD (Neonatology Fellow, Children's Hospital Medical Center, Cincinnati) — Principal investigator
First posted
Dec 21, 2012
Start date
Dec 2012
Primary completion
Dec 2013
Completion
Dec 2013
Last update
Jun 13, 2014

Study contacts

Jason R Wiles, MD
principal investigator · Children's Hospital Medical Center, Cincinnati
Henry Akinbi, MD
principal investigator · Children's Hospital Medical Center, Cincinnati
Alexander Vinks, PharmD, PhD
principal investigator · Children's Hospital Medical Center, Cincinnati

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jun 2014. You cannot join it, but the record below documents what was studied.

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