- ICH GCP
- Registre américain des essais cliniques
- Essai clinique 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.
Aperçu de l'étude
Statut
Les conditions
Intervention / Traitement
Type d'étude
Inscription (Réel)
Phase
- Phase 2
Contacts et emplacements
Lieux d'étude
-
-
Hellerup
-
Gentofte, Hellerup, Danemark, 2900
- Department of Anaesthesia-Surgery-Intensive Care, Gentofte Hospital
-
-
Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
Accepte les volontaires sains
Sexes éligibles pour l'étude
La description
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
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
- Objectif principal: Traitement
- Répartition: Randomisé
- Modèle interventionnel: Affectation croisée
- Masquage: Quadruple
Armes et Interventions
Groupe de participants / Bras |
Intervention / Traitement |
|---|---|
|
Expérimental: Ropivacaine + dexamethasone
20 ml ropivacaine 0.5% + 0.5 ml dexamethasone 4 mg7ml
|
Adductor canal block, single bolus
|
|
Comparateur placebo: Ropivacaine + placebo
20 ml ropivacaine 0.5% + 0.5 ml isotonic saline ad
|
Adductor canal block, single bolus
|
Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
|
Difference in duration of sensory block between dexamethasone and placebo assessed as cold sensation with an alcohol swab
Délai: 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
|
Mesures de résultats secondaires
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
|
Difference between dexamethasone and placebo in the duration of a sensory block assessed by pin-prick
Délai: 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
Délai: 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
Délai: 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
Délai: 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
Délai: 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
|
Collaborateurs et enquêteurs
Parrainer
Les enquêteurs
- Chercheur principal: Pia Jæger, MD, PhD, Rigshospitalet, Denmark
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude
Achèvement primaire (Réel)
Achèvement de l'étude (Réel)
Dates d'inscription aux études
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première publication (Estimation)
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Estimation)
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Plus d'information
Termes liés à cette étude
Mots clés
Termes MeSH pertinents supplémentaires
- Effets physiologiques des médicaments
- Dépresseurs du système nerveux central
- Agents autonomes
- Agents du système nerveux périphérique
- Agents du système sensoriel
- Anesthésiques
- Agents anti-inflammatoires
- Agents antinéoplasiques
- Antiémétiques
- Agents gastro-intestinaux
- Glucocorticoïdes
- Les hormones
- Hormones, substituts hormonaux et antagonistes hormonaux
- Agents antinéoplasiques, hormonaux
- Anesthésiques locaux
- Dexaméthasone
- Ropivacaïne
Autres numéros d'identification d'étude
- SM2-PJ-14
- 2014-004879-23 (Numéro EudraCT)
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