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

Pharmacokinetics of Piperacillin, Given as Continuous Infusion to Patients With Cystic Fibrosis

6. november 2015 opdateret af: Kristina Öbrink-Hansen, University of Aarhus

At the Department of Infectious Diseases, Aarhus University Hospital, continuous infusion with piperacillin/tazobactam for a period of 2 weeks, has been used for several years in patients with cystic fibrosis, suffering from acute pulmonary exacerbations (APE).

It is an outpatient treatment. To assess the efficacy and quality of the treatment, a blood test every 3rd day is taken to determine the concentration of Piperacillin in blood-plasma.

Studieoversigt

Status

Afsluttet

Betingelser

Detaljeret beskrivelse

Patients with cystic fibrosis (CF) are often colonized with multidrug-resistant microorganisms, which increases the risk of suboptimal dosing of antibiotics as the time above the minimum inhibitory concentration (T>MIC) is suboptimal. Continuous infusion of beta-lactam antibiotics is more likely to optimize T>MIC than intermittent infusion. At the Department of Infectious Diseases, Aarhus University Hospital, continuous infusion with piperacillin/tazobactam for a period of 2 weeks, has been used for several years in patients with CF, suffering from acute pulmonary exacerbations (APE). It is an outpatient treatment, and the patients are given 16 g of piperacillin per 24 hours. To assess the efficacy and quality of the treatment, a blood test every 3rd day will be required to monitor the blood-plasma concentration of piperacillin, as well as C-reactive protein (CRP) and white blood cell count (WBC).

Undersøgelsestype

Observationel

Tilmelding (Faktiske)

10

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiesteder

  • Danmark
    • Aarhus N
      • Aarhus, Aarhus N, Danmark, 8220
        • Department of Infectious Diseases, Aarhus University Hospital

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 50 år (Voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Prøveudtagningsmetode

Sandsynlighedsprøve

Studiebefolkning

Patients with Cystic Fibrosis, suffering from acute pulmonary exacerbations.

Beskrivelse

Inclusion Criteria:

  • Patients with Cystic Fibrosis, suffering from acute pulmonary exacerbations, treated with continuous infusion of Piperacillin/Tazobactam for a period of two weeks.

Exclusion Criteria:

  • Age under 18

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
Pharmacokinetics Piperacillin
Patients with cystic fibrosis , treated with Piperacillin/Tazobactam, given as continuous infusion for a period of two weeks.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Blood-plasma Concentration of Piperacillin
Tidsramme: Piperacillin plasma-concentration was determined 3-5 times for each patient, during the 2 weeks of piperacillin treatment

The free, non-protein bound fraction of plasma piperacillin for each patient was determined using Ultra High Performance Liquid Chromatography. The concentration was compared to the MIC-value (Minimal Inhibitory Concentration) of the pathogen isolated in a sputum sample collected prior to initiation of antibiotic treatment.

Infusion pumps with 16 g of piperacillin per 24 hours were initially used and five patients had piperacillin plasma-concentrations monitored during this treatment regimen. However, in three of these patients, the piperacillin plasma concentrations were unexpectedly low and dropped to a level below the MIC. This was found to be due to antibiotic crystallization within the infusion pumps as a result of the antibiotic concentration being too high. Consequently, infusion pumps with 12 g of piperacillin per 24 hours were used in stead. The median piperaillin concentrations reported below are derived from all measurements within the two weeks of treatment.
Piperacillin plasma-concentration was determined 3-5 times for each patient, during the 2 weeks of piperacillin treatment

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
The Time Above the Minimum Inhibitory Concentration (T>MIC)
Tidsramme: Patients will be followed for the duration of treatment, which is approximately 2 weeks.

The time, expressed in percentage, for which the plasma concentration of Piperacillin lies above the minimum inhibitory concentration for the pathogen,during the treatment. If the piperacillin concentration at all measurements during the treatment period was at a level above the MIC, T>MIC is reported as 100%. MIC for the pathogen in sputum was not reported in patient 5. Therefore,T>MIC for this patient could not be estimated.

Patient 1-5 were treated with piperacillin 16g/day. Patient 6-10 were treated with piperacillin 12g/day.
Patients will be followed for the duration of treatment, which is approximately 2 weeks.
MIC of Pathogen Detected in Sputum Sample, Prior to Initiation of Treatment.
Tidsramme: Sputum sample was collected 3 to 7 days before treatment initiation.
MIC to piperacillin/tazobactam was obtained by using E-tests (AB Biodisk, Solna, Sweden) on Mueller-Hinton agar plates incubated at 35 ± 2 degrees Celcius with inoculum, incubation time and atmosphere in accordance to the E-test application guide.
Sputum sample was collected 3 to 7 days before treatment initiation.

Samarbejdspartnere og efterforskere

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

Sponsor

University of Aarhus

Efterforskere

  • Studieleder: Eskild Petersen, Professor, Department of Infectious Diseases, Aarhus University Hospital, Denmark

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. juli 2013

Primær færdiggørelse (Faktiske)

1. juni 2015

Studieafslutning (Faktiske)

1. juni 2015

Datoer for studieregistrering

Først indsendt

11. juli 2013

Først indsendt, der opfyldte QC-kriterier

7. november 2013

Først opslået (Skøn)

14. november 2013

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Skøn)

11. december 2015

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

6. november 2015

Sidst verificeret

1. november 2015

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • CF-275-13

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 Cystisk fibrose

Søg i lignende forsøg

Sponsorer og samarbejdspartnere

Medicinske tilstande

Narkotikainterventioner

CROs by country

CROs in Finland

Betingelser

Sjældne sygdomme

Narkotikainterventioner

Kosttilskud

Sponsor / samarbejdspartnere

Placeringer

Abonner