Pharmacokinetics of Dexmedetomidine in Children During Cardiopulmonary Bypass (CPB)
21. november 2014 opdateret af: Duke University
Dexmedetomidine is increasingly used for sedation in children placed on cardiopulmonary bypass for heart surgery.
It is also often used after surgery and may be particularly helpful for children with heart disease.
In order for this medication to be helpful and to minimize risks associated with taking the medication, it is important to provide correct dosing for this medication.
Based on evidence from studies of other medications used during heart surgery, it is likely that dosing of dexmedetomidine while on cardiopulmonary bypass is different from dosing in other settings.
The purpose of this study is to evaluate how the heart-lung bypass machine affects dexmedetomidine levels in the body.
Studieoversigt
Status
Afsluttet
Betingelser
Undersøgelsestype
Observationel
Tilmelding (Faktiske)
18
Kontakter og lokationer
Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.
Studiesteder
-
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North Carolina
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Durham, North Carolina, Forenede Stater, 27705
- Duke University Hospital
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-
Deltagelseskriterier
Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.
Berettigelseskriterier
Aldre berettiget til at studere
Ikke ældre end 2 år (Barn)
Tager imod sunde frivillige
Ingen
Køn, der er berettiget til at studere
Alle
Prøveudtagningsmetode
Ikke-sandsynlighedsprøve
Studiebefolkning
The study population will include children less than or equal to 2 years of age who undergo cardiopulmonary bypass and receive dexmedetomidine per standard of care during the bypass session.
Beskrivelse
Inclusion Criteria:
- < 2 years of age
- Sufficient venous access to permit administration of study medication.
- Supported with cardiopulmonary bypass (CPB)
- Receiving dexmedetomidine per standard of care.
- Availability and willingness of the parent/legal guardian to provide written informed consent.
Exclusion Criteria:
- <38 weeks post menstrual age
- Any concomitant condition, which in the opinion of the investigator would preclude a subject's participation in the study.
- Previous participation in this study
- CPB circuit primed with clear fluid
Studieplan
Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
Kohorter og interventioner
Gruppe / kohorte |
|---|
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age less than or equal to 2 years
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Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Plasma pharmacokinetics (clearance, volume of distribution, area under the curve, oxygenator extraction efficiency) of dexmedetomidine in children supported with cardiopulmonary bypass
Tidsramme: Data will be collected at the following approximate time points: 0h, 0.5h, 0.75h, and 2h after infusion initiation; 0.25h, 0.75h, and 2h after bypass initiation; 0.5h prior to bypass termination, 0.25h, 1h, 3h, 7h, and 10h after bypass termination
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The plasma pharmacokinetics of dexmedetomidine will include
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Data will be collected at the following approximate time points: 0h, 0.5h, 0.75h, and 2h after infusion initiation; 0.25h, 0.75h, and 2h after bypass initiation; 0.5h prior to bypass termination, 0.25h, 1h, 3h, 7h, and 10h after bypass termination
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Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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COMFORT behavioral score as a measure of dexmedetomidine pharmacodynamics
Tidsramme: assessed at time 0, upon presentation to the intensive care unit after surgery, and 12-24 hours from study drug initiation.
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assessed at time 0, upon presentation to the intensive care unit after surgery, and 12-24 hours from study drug initiation.
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Accessory sedative and analgesic use as a measure of dexmedetomidine pharmacodynamics
Tidsramme: up to 48 hours after study drug initiation
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We will monitor sedatives and analgesics used in addition to dexmedetomidine.
Quantification of use of other drugs will allow an indication of the sedative effects of dexmedetomidine.
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up to 48 hours after study drug initiation
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Andre resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Vital sign variation as a measure of safety
Tidsramme: up to 48 hours after study drug initiation
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Adverse events of special interest will be evaluated.
These will include the presence of bradycardia, hypertension, and hypotension that occur after administration of dexmedetomidine
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up to 48 hours after study drug initiation
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Samarbejdspartnere og efterforskere
Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.
Sponsor
Efterforskere
- Ledende efterforsker: Kevin Watt, MD, Duke University
Datoer for undersøgelser
Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.
Studer store datoer
Studiestart
1. marts 2014
Primær færdiggørelse (Faktiske)
1. oktober 2014
Studieafslutning (Faktiske)
1. november 2014
Datoer for studieregistrering
Først indsendt
5. februar 2014
Først indsendt, der opfyldte QC-kriterier
7. februar 2014
Først opslået (Skøn)
11. februar 2014
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Skøn)
24. november 2014
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
21. november 2014
Sidst verificeret
1. oktober 2014
Mere information
Begreber relateret til denne undersøgelse
Andre undersøgelses-id-numre
- Pro00049942
- K24HD05873505 (Andet bevillings-/finansieringsnummer: NICHD)
Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .