NCT04786405

Brief Summary

This trial aims to determine the effects and mechanisms (mediators and moderators) of brief training in mindfulness meditation versus clinical hypnosis on acute, experimental pain.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
105

participants targeted

Target at P50-P75 for phase_2

Timeline
Completed

Started Mar 2021

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

February 28, 2021

Completed
8 days until next milestone

First Posted

Study publicly available on registry

March 8, 2021

Completed
7 days until next milestone

Study Start

First participant enrolled

March 15, 2021

Completed
2.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 29, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

November 29, 2023

Completed
Last Updated

December 4, 2023

Status Verified

November 1, 2023

Enrollment Period

2.7 years

First QC Date

February 28, 2021

Last Update Submit

November 30, 2023

Conditions

Keywords

Mindfulness MeditationHypnosisAcute PainExperimental PainMechanisms

Outcome Measures

Primary Outcomes (3)

  • Pain unpleasantness

    Numerical rating scale in response to exposure to a cold pressor task.

    Change from Experimental Session 1 (Day 1) to Experimental Session 5 (Day 5)

  • Pain intensity

    Numerical rating scale in response to exposure to a cold pressor task.

    Change from Experimental Session 1 (Day 1) to Experimental Session 5 (Day 5)

  • Pain tolerance

    How long (in seconds) participants tolerate the cold pressor task with the time starting at the point of immersion and stopping when the hand, wrist and forearm were withdrawn from the refrigerated water.

    Change from Experimental Session 1 (Day 1) to Experimental Session 5 (Day 5)

Secondary Outcomes (9)

  • Physiological response to pain stimulus

    Change from Experimental Session 1 (Day 1) to Experimental Session 5 (Day 5)

  • Mechanism: Attention Network Task

    Change from Experimental Session 1 (Day 1) to Experimental Session 5 (Day 5)

  • Mechanism: Mind Wandering Task

    Change from Experimental Session 1 (Day 1) to Experimental Session 5 (Day 5)

  • Mechanism: Mindfulness

    Change from Experimental Session 1 (Day 1) to Experimental Session 5 (Day 5)

  • Mechanism: Pain catastrophizing

    Change from Experimental Session 1 (Day 1) to Experimental Session 5 (Day 5)

  • +4 more secondary outcomes

Study Arms (2)

Mindfulness Meditation

EXPERIMENTAL

Participants in this arm will complete five, 20-minute mindfulness meditation sessions delivered over consecutive days.

Behavioral: Mindfulness meditation

Clinical Hypnosis

ACTIVE COMPARATOR

Participants in this arm will complete five, 20-minute clinical hypnosis sessions delivered over consecutive days.

Behavioral: Clinical hypnosis

Interventions

Participants in the mindfulness meditation condition will practice a breath and body focused meditation.

Mindfulness Meditation

Participants in clinical hypnosis will be guided in a hypnosis practice with suggestions tailored towards shifting pain appraisals.

Clinical Hypnosis

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • years of age or older;
  • Able to read, speak and understand English.

You may not qualify if:

  • Pregnancy, heart or vascular disease, Raynaud's disease, sickle cell disease, seizure disorder, high blood pressure, or diabetes;
  • Experience of recurrent fainting spells;
  • Report of a chronic pain condition;
  • Use of alcohol and/or pain medication in the last 24-hours;
  • Currently receiving psychiatric care;
  • Problems with allergic skin reactions or excessive bruising;
  • Previous participation in a cold pressor experiment.
  • All participants will be asked to consume a fruit box drink prior to the cold pressor to prevent vasovagal reactions.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

The University of Queensland

Brisbane, Queensland, 4072, Australia

Location

MeSH Terms

Conditions

Acute Pain

Interventions

MindfulnessHypnosis

Condition Hierarchy (Ancestors)

PainNeurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

Cognitive Behavioral TherapyBehavior TherapyPsychotherapyBehavioral Disciplines and ActivitiesMind-Body TherapiesComplementary TherapiesTherapeutics

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Masking Details
The experimenter will remain blind to participant condition.
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Single-blind, two-arm, parallel-group randomized design.
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

February 28, 2021

First Posted

March 8, 2021

Study Start

March 15, 2021

Primary Completion

November 29, 2023

Study Completion

November 29, 2023

Last Updated

December 4, 2023

Record last verified: 2023-11

Data Sharing

IPD Sharing
Will not share

We will make available to interested researchers a data file containing the de-identified data used for each published article at the time that the article is accepted for publication. The data will be de-identified to remove any variables from which it would be possible to identify any individual participants. Specifically, we will create a data file that includes all of the variables used in any published article and a list of the variables in the data file (along with their variable labels) and email to investigators who request the data a copy of: (1) the published article (which will describe the source of the data); (2) the variable list/variable labels; and (3) a copy of the data set (as an SPSS.sav file).

Locations