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Pharmacokinetics of Micafungin in Children on Extracorporeal Membrane Oxygenation

Information source: Duke University
ClinicalTrials.gov processed this data on August 23, 2015
Link to the current ClinicalTrials.gov record.

Condition(s) targeted: Invasive Candidiasis

Intervention: Micafungin (Drug); Micafungin (Drug); Micafungin (Drug)

Phase: Phase 1

Status: Recruiting

Sponsored by: Kevin Watt

Official(s) and/or principal investigator(s):
Kevin Watt, MD, Principal Investigator, Affiliation: Duke Clinical Research Institute

Overall contact:
Julie Autmizguine, MD, Phone: 919-668-7817, Email: julie.autmizguine@dm.duke.edu

Summary

Determine proper dosing of micafungin in children supported with extracorporeal membrane oxygenation (ECMO).

Clinical Details

Official title: Safety and Pharmacokinetics of Micafungin in Children Supported With Extracorporeal Membrane Oxygenation

Study design: Allocation: Non-Randomized, Endpoint Classification: Pharmacokinetics Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment

Primary outcome: Pharmacokinetic primary endpoints

Secondary outcome: Safety

Detailed description: Extracorporeal membrane oxygenation (ECMO) is a cardiopulmonary bypass device that provides life-saving, complete respiratory and cardiac support for children who suffer refractory heart or lung failure. While on ECMO, children are at increased risk of infection, including fungal infection. Antifungal prophylaxis can potentially reduce the burden of disease in children on ECMO. Because fungal infections can result in biofilms that are difficult to treat, treatment includes not only antifungal medications but also removal of any large intravenous lines. However, catheter removal for children on ECMO is impossible; therefore, therapy relies upon optimal antifungal management alone. Micafungin is an antifungal medication that works well against the most common fungal infections and has been shown to be safe in children. Micafungin may be particularly efficacious in children on ECMO because of the drug's ability to penetrate biofilms. However, the ECMO circuit is known to substantially alter drug levels for many drugs, resulting in important dosing changes. Appropriate micafungin dosing in this setting is unknown and sub-optimal dosing might result in therapeutic and prophylactic failure. Standard dosing of micafungin are 4 and 2 mg per kilogram of body weight given intravenously once daily for treatment and prophylaxis, respectively. Based on preliminary data and modeling from other studies, investigators hypothesize that 8 and 4 mg per kilogram given once daily will achieve proper drug levels to respectively treat and prevent fungal infections in children under 2 years of age who are supported by ECMO. Because the ECMO circuit should have less of an impact on volume of distribution in larger children, investigators hypothesize that in children from 2 to 18 years old, standard dosing of micafungin will achieve proper drug concentrations. Investigators hold the FDA investigational new drug application (IND #115255) to give micafungin to children on ECMO at the doses described above. Blood samples will be collected at specific times around the first and fourth micafungin doses to describe the pharmacokinetics and drug extraction by the ECMO circuit.

Eligibility

Minimum age: N/A. Maximum age: 18 Years. Gender(s): Both.

Criteria:

Inclusion Criteria:

- <= 17. 85 years at the time of enrollment.

- Sufficient venous access to permit administration of study medication.

- Supported with either venoarterial (VA) or venovenous (VV) ECMO.

- Availability and willingness of the parent/legal guardian to provide written informed

consent.

- For treatment dosing arm: confirmed or suspected infection

Exclusion Criteria:

- Subject with a history of anaphylaxis attributed to an echinocandin.

- Any other concomitant condition, which in the opinion of the investigator would

preclude a subject's participation in the study.

- Previous participation in this study.

- Pregnancy

Locations and Contacts

Julie Autmizguine, MD, Phone: 919-668-7817, Email: julie.autmizguine@dm.duke.edu

Duke University Medical Center, Durham, North Carolina 27710, United States; Recruiting
Julie Autmizguine, MD, Phone: 919-668-7817, Email: julie.autmizguine@dm.duke.edu
Julie Autmizguine, MD, Sub-Investigator
Kevin Watt, MD, Principal Investigator
Additional Information

Starting date: January 2013
Last updated: May 22, 2015

Page last updated: August 23, 2015

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