- ICH GCP
- Register voor klinische proeven in de VS.
- Klinische proef NCT02488473
Does Perineural Dexmedetomidine Prolong Duration of a Nerve Block?
Does Perineural Dexmedetomidine Prolong the Duration of an Adductor Canal Block When Controlling for a Systemic Effect? - A Randomised Paired Trial in Healthy Volunteers.
Studie Overzicht
Toestand
Conditie
Interventie / Behandeling
Gedetailleerde beschrijving
Background:
Efficient pain management promoting mobilization and convalescence is essential in an ideal perioperative course. Regional nerve blocks are a central element in postoperative regimes for many patients and it is therefore important that these nerve blocks are both long lasting and efficient. This trial will investigate whether it is possible to optimize the postoperative pain management when adding dexmedetomidine to the local anaesthetic ropivacaine in peripheral nerve blocks.
The prolonging effect of using dexmedetomidine as adjunct in peripheral nerve blocks have been investigated in several studies. However, it remains uncertain whether the effect is mediated by a systemic-, a peripheral- or a combined systemic/peripheral mechanism. In this trial the adjuvating effect of dexmedetomidine will be investigated using the adductor canal block. This is a nerve block that besides being efficient as pain treatment after knee surgery, is primarily sensory, and therefore augments mobilization after total knee arthroplasty.
Method:
On the trial day the volunteers will receive bilateral adductor canal blocks. In one thigh they will receive the local anaesthetic ropivacaine 20ml 5mg/ml and placebo (saline) and in the other thigh ropivacaine 20ml 5mg/ml and dexmedetomidine 100μg. The allocation is blinded to volunteer and investigator.
The duration of the nerve block will be measured by five different tests: Temperature test, Pinprick, Pain during tonic heat stimulation, Warmth detection threshold and pain detection threshold. All tests are validated within pain research.
Studietype
Inschrijving (Werkelijk)
Fase
- Fase 2
Contacten en locaties
Studie Locaties
-
-
-
Koege, Denemarken, 4600
- Department of Anesthesiology Koege Hospital
-
-
Deelname Criteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
Accepteert gezonde vrijwilligers
Geslachten die in aanmerking komen voor studie
Beschrijving
Inclusion Criteria:
- American Society of Anesthesiologists class 1
- Body Mass Index 18-30
Exclusion Criteria:
- Allergy to study medication
- Earlier trauma or surgery to lower limb
- Diabetes Mellitus
- Alcohol or drug abuse
- Daily intake of opioids or steroids last 4 weeks
- Daily intake of any analgesics last 48 hours Heart block Sick sinus node.
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
- Primair doel: Behandeling
- Toewijzing: Gerandomiseerd
- Interventioneel model: Parallelle opdracht
- Masker: Verviervoudigen
Wapens en interventies
Deelnemersgroep / Arm |
Interventie / Behandeling |
---|---|
Experimenteel: Ropivacaine + Dexmedetomidine
Adductor Canal Block 20 ml Ropivacaine 5mg/ml + 1 ml Dexmedetomidine 100ug/ml
|
100 ug dexmedetomidine added to the ropivacaine nerveblock
Andere namen:
20 ml Ropivacaine 5mg/ml
|
Placebo-vergelijker: Ropivacaine + Placebo
Adductor Canal Block 20 ml Ropivacaine 5mg/ml + 1 ml Saline
|
20 ml Ropivacaine 5mg/ml
Placebo
|
Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
---|---|---|
Difference in duration of sensory block between dexmedetomidine and placebo assessed as cold sensation with an alcohol swab
Tijdsspanne: 0-36 hours
|
Duration is defined as time from block performance until recovery of cold sensation to an alcohol swab, assessed every hour post-block (and every half hour when pain scores during the tonic heat stimulation test is above 0) Time for sleep will be provided.
|
0-36 hours
|
Secundaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
---|---|---|
Difference between dexmedetomidine and placebo in the duration of a sensory block assessed by pin-prick
Tijdsspanne: 0-36 hours
|
Duration is defined as time from block performance until recovery of normal sensation, assessed on the hour post block Time for sleep will be provided.
|
0-36 hours
|
Difference between dexmedetomidine and placebo in the duration of a sensory block assessed as maximum pain during a tonic heat stimulation test
Tijdsspanne: 0-36 hours
|
Duration is defined as time from block performance until recovery of normal sensation, assessed on the hour post block.Time for sleep will be provided.
Recovery of normal sensation is defined as VAS pain scores ± 10 mm of the pre-block value.
A Linear 100mm visual analogue scale (VAS) will be used.
|
0-36 hours
|
Difference between dexmedetomidine and placebo in the duration of a sensory block assessed as warmth detection threshold
Tijdsspanne: 0-36 hours
|
Duration is defined as time from block performance until recovery of normal sensation, assessed on the hour post block Time for sleep will be provided.
Recovery of normal sensation is defined as detection thresholds of ± 2 degrees C of the pre-block value.
Time for sleep will be provided
|
0-36 hours
|
Difference between dexmedetomidine and placebo in the duration of a sensory block assessed as heat pain detection threshold
Tijdsspanne: 0-36 hours
|
Duration is defined as time from block performance until recovery of normal sensation, assessed on the hour post block.
Time for sleep will be provided.
Recovery of normal sensation is defined as detection thresholds of ± 2 degrees C of the pre-block value.
|
0-36 hours
|
Difference in maximum pain scores between dexmedetomidine and placebo during block and after recovery of normal sensation.
Tijdsspanne: 0-36 hours
|
Pain scores during a tonic heat stimulation will be compared every hour post block and 1 h after pain scores have returned to the pre-block values.
Time for sleep will be provided.
|
0-36 hours
|
Medewerkers en onderzoekers
Sponsor
Onderzoekers
- Hoofdonderzoeker: Jakob H Andersen, MD, Department of Anesthesiology Koege Hospital
Studie record data
Bestudeer belangrijke data
Studie start
Primaire voltooiing (Werkelijk)
Studie voltooiing (Werkelijk)
Studieregistratiedata
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Schatting)
Updates van studierecords
Laatste update geplaatst (Schatting)
Laatste update ingediend die voldeed aan QC-criteria
Laatst geverifieerd
Meer informatie
Termen gerelateerd aan deze studie
Trefwoorden
Aanvullende relevante MeSH-voorwaarden
- Fysiologische effecten van medicijnen
- Adrenerge middelen
- Neurotransmitter agenten
- Moleculaire mechanismen van farmacologische werking
- Depressiva van het centrale zenuwstelsel
- Agenten van het perifere zenuwstelsel
- Pijnstillers
- Sensorische systeemagenten
- Anesthesie
- Pijnstillers, niet-narcotisch
- Adrenerge alfa-2-receptoragonisten
- Adrenerge alfa-agonisten
- Adrenerge agonisten
- Hypnotica en sedativa
- Anesthesie, lokaal
- Dexmedetomidine
- Ropivacaine
Andere studie-ID-nummers
- SM2-JH-14
- 2014-005651-89 (EudraCT-nummer)
Deze informatie is zonder wijzigingen rechtstreeks van de website clinicaltrials.gov gehaald. Als u verzoeken heeft om uw onderzoeksgegevens te wijzigen, te verwijderen of bij te werken, neem dan contact op met register@clinicaltrials.gov. Zodra er een wijziging wordt doorgevoerd op clinicaltrials.gov, wordt deze ook automatisch bijgewerkt op onze website .
Klinische onderzoeken op Gezond
-
University of LeicesterNational Institute for Health Research, United KingdomVoltooidPatiënten met hartfalen en behouden ejectiefractie - HFpEF | Patiënten met hartfalen met verminderde ejectiefractie - HFrEF | Healthy Controls Group - Leeftijd en geslacht afgestemd
-
University Hospital, GrenobleUniversity Hospital, Clermont-Ferrand; Grenoble Institut des NeurosciencesBeëindigdZiekte van Parkinson | Healthy Controls Group - Leeftijd en geslacht afgestemdFrankrijk