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- Klinische proef NCT02351804
Does Perineural Dexamethasone Prolong Duration of a Nerve Block?
Does Perineural Dexamethasone Prolong Duration of an Adductor Canal Block When Controlling for a Systemic Effect? A Paired, Randomized, Blinded, Study in Healthy Volunteers
The purpose of this study is to investigate whether dexamethasone as an adjuvant to ropivacaine for adductor canal block increases duration of the sensory block, when controlling for a systemic effect using a paired design and bilateral blocks.
The investigators hypothesize that adding dexamethasone to ropivacaine will prolong block duration compared with ropivacaine + placebo.
Studie Overzicht
Toestand
Conditie
Interventie / Behandeling
Studietype
Inschrijving (Werkelijk)
Fase
- Fase 2
Contacten en locaties
Studie Locaties
-
-
Hellerup
-
Gentofte, Hellerup, Denemarken, 2900
- Department of Anaesthesia-Surgery-Intensive Care, Gentofte 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
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
- Primair doel: Behandeling
- Toewijzing: Gerandomiseerd
- Interventioneel model: Crossover-opdracht
- Masker: Verviervoudigen
Wapens en interventies
Deelnemersgroep / Arm |
Interventie / Behandeling |
|---|---|
|
Experimenteel: Ropivacaine + dexamethasone
20 ml ropivacaine 0.5% + 0.5 ml dexamethasone 4 mg7ml
|
Adductor canal block, single bolus
|
|
Placebo-vergelijker: Ropivacaine + placebo
20 ml ropivacaine 0.5% + 0.5 ml isotonic saline ad
|
Adductor canal block, single bolus
|
Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
|
Difference in duration of sensory block between dexamethasone 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, except at 2 and 3 hours post block where there will be a break and no assessments will be performed.
|
0-36 hours
|
Secundaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
|
Difference between dexamethasone 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 (except at 2 and 3 hours post block where there will be a break and no assessments will be performed).
|
0-36 hours
|
|
Difference between dexamethasone 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 (except at 2 and 3 hours post block where there will be a break and no assessments will be performed). Recovery of normal sensation is defined as VAS pain scores ± 10 mm of the pre-block value. |
0-36 hours
|
|
Difference between dexamethasone 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 (except at 2 and 3 hours post block where there will be a break and no assessments will be performed and only assessed if pain scores during tonic heat stimulation is above 0 ). Recovery of normal sensation is defined as detection thresholds of ± 2 degrees C of the pre-block value. |
0-36 hours
|
|
Difference between dexamethasone 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 (except at 2 and 3 hours post block where there will be a break and no assessments will be performed and only assessed if pain scores during tonic heat stimulation is above 0 ). 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 dexamethasone and placebo during block and after recovery of normal sensation
Tijdsspanne: 0-36 hours
|
Pain scores during a tonic heat stimulation will be compared at 4 h post block and 1 h after pain scores have returned to the pre-block values.
|
0-36 hours
|
Medewerkers en onderzoekers
Sponsor
Onderzoekers
- Hoofdonderzoeker: Pia Jæger, MD, PhD, Rigshospitalet, Denmark
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
- Depressiva van het centrale zenuwstelsel
- Autonome agenten
- Agenten van het perifere zenuwstelsel
- Sensorische systeemagenten
- Anesthesie
- Ontstekingsremmende middelen
- Antineoplastische middelen
- Anti-emetica
- Gastro-intestinale middelen
- Glucocorticoïden
- Hormonen
- Hormonen, hormoonvervangers en hormoonantagonisten
- Antineoplastische middelen, hormonaal
- Anesthesie, lokaal
- Dexamethason
- Ropivacaine
Andere studie-ID-nummers
- SM2-PJ-14
- 2014-004879-23 (EudraCT-nummer)
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