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Effects of Genuine vs Sham Acupuncture and Communication Type on Relaxation (ACU)

17 août 2015 mis à jour par: Mats Lekander, Karolinska Institutet
The purpose of this study is to investigate if it is possible to influence the participants' expectations to improve outcome, in this particular setting the relaxing effects of one single acupuncture treatment with genuine or sham needles combined with positive or neutral communication regarding expected relaxing effects.

Aperçu de l'étude

Description détaillée

Background It is commonly reported that individuals experience a sense of relaxation during acupuncture treatment. However it is not known if the effects are related to the specific effects of needling or non-specific effects associated with the treatment procedure e.g. the communication with the therapist. It is well known that the way in which patients and clinicians communicate with each other affect treatment outcome, and one of the possible mechanisms to mediate the communication-related treatment outcomes is patient expectations.

Aims The aim of the study is therefore to investigate if it is possible to influence the individuals' expectations to improve outcome; in this particular setting the relaxing effects of one single acupuncture treatment with genuine or sham needles combined with positive or neutral communication regarding expected relaxing effects. The investigators also aim to investigate if different therapists influence how individuals perceive treatment effects, blinding and the communication during treatment with genuine and sham acupuncture.

Procedure Nine therapists performed treatments on voluntary healthy individuals who were randomized to a 30 minute treatment session with a) genuine penetrating acupuncture in traditional acupuncture points or b) non-penetrating sham needles in sham points. Within groups, individuals were further randomized to two communication styles 1) neutral communication or 2) strengthened positive communication regarding expectations concerning relaxing effects.

Outcome measures Perceived degree of expectancy and relaxation was measured directly before and after the treatment. The individuals also rated how they experienced the therapist´s communication style regarding grade of positivity and if they believed that the therapist had given them genuine or sham acupuncture directly after treatment.

Type d'étude

Interventionnel

Inscription (Réel)

243

Phase

  • Phase 4

Critères de participation

Les chercheurs recherchent des personnes qui correspondent à une certaine description, appelée critères d'éligibilité. Certains exemples de ces critères sont l'état de santé général d'une personne ou des traitements antérieurs.

Critère d'éligibilité

Âges éligibles pour étudier

18 ans et plus (Adulte, Adulte plus âgé)

Accepte les volontaires sains

Oui

Sexes éligibles pour l'étude

Tout

La description

Inclusion Criteria:

  • Over 18 years of age
  • Able to understand and read/write Swedish

Exclusion Criteria:

  • No acupuncture training

Plan d'étude

Cette section fournit des détails sur le plan d'étude, y compris la façon dont l'étude est conçue et ce que l'étude mesure.

Comment l'étude est-elle conçue ?

Détails de conception

  • Objectif principal: Traitement
  • Répartition: Randomisé
  • Modèle interventionnel: Affectation parallèle
  • Masquage: Seul

Armes et Interventions

Groupe de participants / Bras
Intervention / Traitement
Comparateur actif: acupuncture positive communication
Genuine acupuncture needles combined with positive communication regarding the expected treatment effects
acupuncture was administered (sharp needles diameter 0.25 x length 40 mm) bilaterally to the acupuncture point pericardium six (PC6) between the tendons of palmaris longus and flexor carpii radialis at two body-inches (one body-inch approximately 1.5 cm) proximal to the wrist at 0.5 body-inch depth. The therapists manually manipulated the needles three times per treatment by rotating, thrusting or lifting the needles. When the participant reported a sense of numbness or soreness and the therapist noted a minimal muscular contraction around the needle.
Autres noms:
  • invasive acupuncture
During the acupuncture treatment the therapist conveyed, at least three out of several positive statements, such as: "Many acupuncture studies have shown excellent results concerning relaxation effects", "Brain imaging studies show that acupuncture treatments affect areas that affect pulse, blood-pressure and muscle tension".
Comparateur factice: sham acupuncture positive communication
Sham acupuncture needles combined with positive communication regarding the expected treatment effects
During the acupuncture treatment the therapist conveyed, at least three out of several positive statements, such as: "Many acupuncture studies have shown excellent results concerning relaxation effects", "Brain imaging studies show that acupuncture treatments affect areas that affect pulse, blood-pressure and muscle tension".
sham acupuncture was administrated (blunt needles diameter 0.25 x length 40 mm) bilaterally to a non-acupuncture point four body-inch proximal and one body-inch radial from the PC6 point, with the telescopic non-penetrating Park´s sham needle [20]. Park's credible needle looks identical to a real needle but glides upward into its handle, giving an illusion of penetration. A marking tube, identical for both acupuncture types, held the sham needle in place. The therapists manipulated the needles a few seconds three times per session until the needles touched the skin, but no "needle sensation" occurred, and then lifted the needles up from the skin.
Autres noms:
  • placebo acupuncture
Comparateur actif: acupuncture neutral communication
Genuine acupuncture needles combined with neutral communication regarding the expected treatment effects
acupuncture was administered (sharp needles diameter 0.25 x length 40 mm) bilaterally to the acupuncture point pericardium six (PC6) between the tendons of palmaris longus and flexor carpii radialis at two body-inches (one body-inch approximately 1.5 cm) proximal to the wrist at 0.5 body-inch depth. The therapists manually manipulated the needles three times per treatment by rotating, thrusting or lifting the needles. When the participant reported a sense of numbness or soreness and the therapist noted a minimal muscular contraction around the needle.
Autres noms:
  • invasive acupuncture
During the acupuncture treatment the therapists conveyed, at least three out of several neutral statements, such as: "During treatment you will just lie down and rest and I will not talk so much to you", "We don´t really know if acupuncture is a good method for relaxation effects; thus we need to perform this study",
Comparateur factice: sham acupuncture neutral communication
Sham acupuncture needles combined with neutral communication regarding the expected treatment effects
sham acupuncture was administrated (blunt needles diameter 0.25 x length 40 mm) bilaterally to a non-acupuncture point four body-inch proximal and one body-inch radial from the PC6 point, with the telescopic non-penetrating Park´s sham needle [20]. Park's credible needle looks identical to a real needle but glides upward into its handle, giving an illusion of penetration. A marking tube, identical for both acupuncture types, held the sham needle in place. The therapists manipulated the needles a few seconds three times per session until the needles touched the skin, but no "needle sensation" occurred, and then lifted the needles up from the skin.
Autres noms:
  • placebo acupuncture
During the acupuncture treatment the therapists conveyed, at least three out of several neutral statements, such as: "During treatment you will just lie down and rest and I will not talk so much to you", "We don´t really know if acupuncture is a good method for relaxation effects; thus we need to perform this study",

Que mesure l'étude ?

Principaux critères de jugement

Mesure des résultats
Description de la mesure
Délai
Change from before treatment to after treatment in subjective report of relaxation (0-100 mm Visual analogue scale)
Délai: approximately 5 minutes before treatment and approximately 5 minutes after treatment
Subjective perception of relaxation measured with a 0-100 mm Visual analogue scale
approximately 5 minutes before treatment and approximately 5 minutes after treatment

Mesures de résultats secondaires

Mesure des résultats
Description de la mesure
Délai
Change from before treatment to after treatment in subjective report of expectations (0-100 mm Visual analogue scale)
Délai: approximately 5 minutes before treatment and approximately 5 minutes after treatment
Subjective perception of expectation measured with a 0-100 mm Visual analogue scale
approximately 5 minutes before treatment and approximately 5 minutes after treatment

Collaborateurs et enquêteurs

C'est ici que vous trouverez les personnes et les organisations impliquées dans cette étude.

Dates d'enregistrement des études

Ces dates suivent la progression des dossiers d'étude et des soumissions de résultats sommaires à ClinicalTrials.gov. Les dossiers d'étude et les résultats rapportés sont examinés par la Bibliothèque nationale de médecine (NLM) pour s'assurer qu'ils répondent à des normes de contrôle de qualité spécifiques avant d'être publiés sur le site Web public.

Dates principales de l'étude

Début de l'étude

1 septembre 2013

Achèvement primaire (Réel)

1 février 2014

Achèvement de l'étude (Réel)

1 février 2014

Dates d'inscription aux études

Première soumission

11 août 2015

Première soumission répondant aux critères de contrôle qualité

14 août 2015

Première publication (Estimation)

17 août 2015

Mises à jour des dossiers d'étude

Dernière mise à jour publiée (Estimation)

18 août 2015

Dernière mise à jour soumise répondant aux critères de contrôle qualité

17 août 2015

Dernière vérification

1 août 2015

Plus d'information

Termes liés à cette étude

Autres numéros d'identification d'étude

  • ACU 2013/80-31

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