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The Effect of Different Doses (Mass) of Local Anesthetic on Duration of Adductor Canal Block in Healthy Volunteers - Part 2

17. november 2014 opdateret af: Pia Jaeger, Rigshospitalet, Denmark

To investigate whether increased dose of local anesthetic (lidocaine) increases duration of peripheral nerve block (adductor canal block) and to develop a model for assessing duration of peripheral nerve blockades. The investigators hypothesize that increasing the dose of lidocaine (by increased concentration) will increase the duration of an adductor canal block.

The study is a follow up on an identical study (SM1-PJ-13, EudraCT number: 2013-001822-24 ) made earlier with different concentrations of lidocaine and a placebo group. For further information see trial registration at European Union Drug Regulatory Authorities Clinical Trial System.

Studieoversigt

Status

Afsluttet

Betingelser

Undersøgelsestype

Interventionel

Tilmelding (Faktiske)

14

Fase

  • Fase 4

Kontakter og lokationer

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

Studiesteder

      • Copenhagen, Danmark, 2100
        • Rigshospitalet, Centre of Head and Orthopaedics, Department of Anaesthesia

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 30 år (Voksen)

Tager imod sunde frivillige

Ja

Køn, der er berettiget til at studere

Han

Beskrivelse

Inclusion Criteria:

  • ASA 1
  • Body mass index 18-25

Exclusion Criteria:

  • Allergy to study medication
  • Earlier trauma or surgery to lower limb
  • Diabetes Mellitus

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: Randomiseret
  • Interventionel model: Crossover opgave
  • Maskning: Firedobbelt

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: ACB with lidocaine 5 mg/ml
Adductor canal block (ACB) with 20 ml lidocaine 5 mg/ml, single bolus
Duration of an adductor canal block with 20 ml lidocaine, single bolus, administered as 5 or 15 mg/ml
Eksperimentel: ACB with lidocaine 15 mg/ml
Adductor canal block with 20 ml lidocaine 15 mg/ml, single bolus
Duration of an adductor canal block with 20 ml lidocaine, single bolus, administered as 5 or 15 mg/ml

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Duration of sensory block assessed with pinprick.
Tidsramme: 0-10 hours
Duration is defined as the time from block performance until recovery of sensation to pin-prick stimulus, assessed at 30 and 60 minutes post block, and thereafter every hour.
0-10 hours

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Duration of sensory block assessed by heat pain detection threshold
Tidsramme: 0-10 hours
Duration is defined as time from block performance until recovery of normal sensation (+/- 2 degrees Celsius from preblock value) assessed at 30 and 60 minutes post block, and thereafter every hour.
0-10 hours
Duration of sensory block assessed by warmth detection threshold
Tidsramme: 0-10 hours
Duration is defined as time from block performance until recovery of normal sensation (return to baseline value + 2 degrees Celsius or less from preblock value) assessed at 30 and 60 minutes post block, and thereafter every hour.
0-10 hours
Duration of sensory block assessed by pain during 1 minute of warmth stimulation
Tidsramme: 0-10 hours
Duration is defined as time from block performance until recovery of normal sensation (return to baseline VAS pain scores +/-10 mm from preblock value) assessed at 30 and 60 minutes post block, and thereafter every hour.
0-10 hours
Duration of sensory block assessed by tolerance to transcutaneal electrical stimulation
Tidsramme: 0-10 hours
Duration is defined as time from block performance until recovery of normal sensation (return to baseline preblock value) assessed at 30 and 60 minutes post block, and thereafter every hour.
0-10 hours
Duration of sensory block assessed by cold sensation with an alcohol swab
Tidsramme: 0-10 hours
Duration is defined as time from block performance until recovery of normal sensation assessed at 30 and 60 minutes post block, and thereafter every hour.
0-10 hours
Duration of motor block assessed as maximum voluntary isometric contraction.
Tidsramme: 0-10 hours
Duration is defined as time from block performance until recovery of normal muscle strength, assessed at 30 and 60 minutes post block, and thereafter every hour.
0-10 hours
Time to onset of sensory block assessed by pinprick.
Tidsramme: 0-2 hours
Onset is defined as the time from block performance until loss of sensation to pin-prick stimulus assessed at 30 and 60 minutes post block, and thereafter every hour.
0-2 hours

Samarbejdspartnere og efterforskere

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

Efterforskere

  • Studiestol: Jørgen B Dahl, Professor, Rigshospitalet, Denmark

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.

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 2014

Primær færdiggørelse (Faktiske)

1. juli 2014

Studieafslutning (Faktiske)

1. juli 2014

Datoer for studieregistrering

Først indsendt

20. juni 2014

Først indsendt, der opfyldte QC-kriterier

23. juni 2014

Først opslået (Skøn)

24. juni 2014

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Skøn)

18. november 2014

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

17. november 2014

Sidst verificeret

1. november 2014

Mere information

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 Adductor canal block with 20 ml lidocaine, single bolus

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