Denne side blev automatisk oversat, og nøjagtigheden af ​​oversættelsen er ikke garanteret. Der henvises til engelsk version for en kildetekst.

Disposition of Intravenous Paracetamol in Young Women

27. oktober 2015 opdateret af: Universitaire Ziekenhuizen KU Leuven

Disposition of Intravenous Paracetamol in Young Women, Including During Pregnancy, in Postpartum or When on Oral Contraceptives

Compared to early postpartum (10-15 weeks) observations, paracetamol clearance was significantly higher (21.1 vs 11.7 l.h-1, + 80 %) at delivery. This higher clearance was due to a disproportional increase in glucuronidation (11.6 vs 4.76 l.h-1, + 144 %), a proportional increase in oxidation clearance (4.95 vs 2.77 l.h-1, 78 %) and primary renal clearance (1.15 vs 0.75 l.h-1, 53 %) [KUlo et al, Int J Obstet Anesth]. This increase in glucuronidation clearance may in part be driven by oestradiol, and may explain within and between individual differences in paracetamol metabolism (e.g. oral contraceptives, follicular vs luteal phase, postpartum, pregnancy, or duration of pregnancy) in young women.

Based on a pooled analysis, investigators aimed to further explore the impact of these covariates on paracetamol metabolism based on plasma and urine collections in women at delivery, in postpartum (early, or late) and healthy volunteers, either or not on oral contraceptives (OC) following intravenous (iv) paracetamol administration.

Studieoversigt

Status

Afsluttet

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

This study aims to perform a pooled analysis of:

  1. Paracetamol PK data recently published in 47 pregnant women. In these cases, iv paracetamol was administered q6h after delivery (caesarean) for 24 h. 8 were recruited a second time for an additional single dose pK study in postpartum (Kulo et al, Br J Clin Pharmacol 2013).
  2. The PK data as initially published by Gregoire et al, but limited to female volunteers, all on oral contraceptives (n=14) (Gregoire et al, Clin Pharm Ther 2007)
  3. A dataset in 8 young women not on oral contraceptives, iv paracetamol, single dose.

Undersøgelsestype

Observationel

Tilmelding (Faktiske)

69

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

18 år til 45 år (Voksen)

Tager imod sunde frivillige

Ja

Køn, der er berettiget til at studere

Kvinde

Prøveudtagningsmetode

Ikke-sandsynlighedsprøve

Studiebefolkning

Pooled analysis of different cohorts of young women who all underwent PK study on paracetamol disposition after iv paracetamol administration.

Beskrivelse

Inclusion Criteria:

  1. informed consent
  2. for patients (pregnant women at delivery), there has to be a clinical indication (post caesarean analgesia, NPO) to administer iv paracetamol.

Exclusion Criteria:

  1. intolerance to paracetamol
  2. withdrawal of informed consent.

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
Intervention / Behandling
at delivery
women who underwent cesarean at delivery, and needed iv paracetamol as part of multimodal analgesia. In these cases, paracetamol was administered q6h (2g loading dose, 1g q6h for 24 h), and blood and urine samples were collected to describe paracetamol disposition at delivery.
Medicin: intravenous paracetamol (acetaminophen)
paracetamol disposition in young women, exploring the impact of covariates (pregnancy, postpartum, oral contraceptives) in this population.
Andre navne:
  • Perfusalgan, paracetamol Fresenius,
postpartum
a subgroup of 8 women initially included in at delivery, underwent a second PK study 2-3 months postpartum and another PK study about 1 year after delivery. This PK study was based on a single iv paracetamol administration (2 g), and blood and urine samples were collected to describe paracetamol disposition in postpartum
Medicin: intravenous paracetamol (acetaminophen)
paracetamol disposition in young women, exploring the impact of covariates (pregnancy, postpartum, oral contraceptives) in this population.
Andre navne:
  • Perfusalgan, paracetamol Fresenius,
healthy female volunteers

a group of 8 young healthy women not on oral contraceptives underwent a single PK study (2 g intravenous paracetamol) and blood and urine samples were collected to described paracetamol disposition in healthy female volunteers, not on oral contraceptives.

Raw data as published by Gregoire et al (Clin Pharm Ther 2007) were available in 14 young women, all on contraceptives.
Medicin: intravenous paracetamol (acetaminophen)
paracetamol disposition in young women, exploring the impact of covariates (pregnancy, postpartum, oral contraceptives) in this population.
Andre navne:
  • Perfusalgan, paracetamol Fresenius,

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
paracetamol disposition in young women: total clearance and metabolite specific clearance estimates
Tidsramme: 24 h is the maximal time frame of this pharmacokinetic study (PK is the outcome measured
pooled analysis of plasma and urine paracetamol and paracetamol metabolite data published in literature in young women following iv paracetamol administration. Samples (plasma and urine) will be collected in the 24 h time interval after initiation of intravenous paracetamol administration (time interval of the PK study)
24 h is the maximal time frame of this pharmacokinetic study (PK is the outcome measured

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Universitaire Ziekenhuizen KU Leuven

Efterforskere

  • Ledende efterforsker: karel allegaert, MD, PhD, Universitaire Ziekenhuizen KU Leuven

Publikationer og nyttige links

Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.

Generelle publikationer

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. juni 2010

Primær færdiggørelse (Faktiske)

1. december 2010

Studieafslutning (Faktiske)

1. april 2015

Datoer for studieregistrering

Først indsendt

19. oktober 2015

Først indsendt, der opfyldte QC-kriterier

27. oktober 2015

Først opslået (Skøn)

29. oktober 2015

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Skøn)

29. oktober 2015

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

27. oktober 2015

Sidst verificeret

1. oktober 2015

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • ML6563

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 .

Kliniske forsøg med Smerte

Kliniske forsøg med intravenous paracetamol (acetaminophen)

Søg i lignende forsøg

Sponsorer og samarbejdspartnere

Medicinske tilstande

Narkotikainterventioner

CROs by country

CROs in Ethiopia

Betingelser

Sjældne sygdomme

Narkotikainterventioner

Kosttilskud

Sponsor / samarbejdspartnere

Placeringer

Abonner