Trial Outcomes & Findings for Real-Time fMRI Feedback Effects on Pain Perception (NCT NCT01588197)
NCT ID: NCT01588197
Last Updated: 2019-06-14
Results Overview
All participants will undergo thermal pain threshold testing directly before (Baseline) and after MRI. Participants will be asked to rate pain unpleasantness, on a scale of 0-10, before the fMRI Paradigm (Baseline) and directly after the fMRI paradigm (after MRI). 0="no unpleasantness" and 10="worst unpleasantness imaginable"
Recruitment status
COMPLETED
Study phase
NA
Target enrollment
20 participants
Primary outcome timeframe
Before and After fMRI Paradigm, an average of 2 hours
Results posted on
2019-06-14
Participant Flow
Participant milestones
| Measure |
ACC Real Time fMRI Feedback
Each participant will undergo thermal pain threshold assessments ten times using the Medoc Pathway System with MRI-compatible ATS Thermode (30mmX30mm; Medoc Inc, Israel). Participants will be instructed to "focus on the thermal stimuli" for the first 5 trials, and to engage in three cognitive pain inhibition strategies (Attention/Distraction Strategy, Stimulus Quality/Severity Strategy, and the Control Strategy.
The participants will be randomly assigned to receive Real Time fMRI Feedback of inverse activation in the rACC after each pain/rest block during the last 3 fMRI scans in the form of two simple thermometer images on the in-scanner computer display.
|
PFC Real Time fMRI Feedback
Each participant will undergo thermal pain threshold assessments ten times using the Medoc Pathway System with MRI-compatible ATS Thermode (30mmX30mm; Medoc Inc, Israel). Participants will be instructed to "focus on the thermal stimuli" for the first 5 trials, and to engage in three cognitive pain inhibition strategies (Attention/Distraction Strategy, Stimulus Quality/Severity Strategy, and the Control Strategy.
The participants will be randomly assigned to receive Real Time fMRI Feedback of inverse activation in the PFC after each pain/rest block during the last 3 fMRI scans in the form of two simple thermometer images on the in-scanner computer display.
|
|---|---|---|
|
Overall Study
STARTED
|
10
|
10
|
|
Overall Study
COMPLETED
|
9
|
9
|
|
Overall Study
NOT COMPLETED
|
1
|
1
|
Reasons for withdrawal
| Measure |
ACC Real Time fMRI Feedback
Each participant will undergo thermal pain threshold assessments ten times using the Medoc Pathway System with MRI-compatible ATS Thermode (30mmX30mm; Medoc Inc, Israel). Participants will be instructed to "focus on the thermal stimuli" for the first 5 trials, and to engage in three cognitive pain inhibition strategies (Attention/Distraction Strategy, Stimulus Quality/Severity Strategy, and the Control Strategy.
The participants will be randomly assigned to receive Real Time fMRI Feedback of inverse activation in the rACC after each pain/rest block during the last 3 fMRI scans in the form of two simple thermometer images on the in-scanner computer display.
|
PFC Real Time fMRI Feedback
Each participant will undergo thermal pain threshold assessments ten times using the Medoc Pathway System with MRI-compatible ATS Thermode (30mmX30mm; Medoc Inc, Israel). Participants will be instructed to "focus on the thermal stimuli" for the first 5 trials, and to engage in three cognitive pain inhibition strategies (Attention/Distraction Strategy, Stimulus Quality/Severity Strategy, and the Control Strategy.
The participants will be randomly assigned to receive Real Time fMRI Feedback of inverse activation in the PFC after each pain/rest block during the last 3 fMRI scans in the form of two simple thermometer images on the in-scanner computer display.
|
|---|---|---|
|
Overall Study
Lack of Efficacy
|
0
|
1
|
|
Overall Study
No MRI
|
1
|
0
|
Baseline Characteristics
Real-Time fMRI Feedback Effects on Pain Perception
Baseline characteristics by cohort
| Measure |
ACC Real Time fMRI Feedback
n=9 Participants
Each participant will undergo thermal pain threshold assessments ten times using the Medoc Pathway System with MRI-compatible ATS Thermode (30mmX30mm; Medoc Inc, Israel). Participants will be instructed to "focus on the thermal stimuli" for the first 5 trials, and to engage in three cognitive pain inhibition strategies (Attention/Distraction Strategy, Stimulus Quality/Severity Strategy, and the Control Strategy.
The participants will be randomly assigned to receive Real Time fMRI Feedback of inverse activation in the rACC after each pain/rest block during the last 3 fMRI scans in the form of two simple thermometer images on the in-scanner computer display.
|
PFC Real Time fMRI Feedback
n=9 Participants
Each participant will undergo thermal pain threshold assessments ten times using the Medoc Pathway System with MRI-compatible ATS Thermode (30mmX30mm; Medoc Inc, Israel). Participants will be instructed to "focus on the thermal stimuli" for the first 5 trials, and to engage in three cognitive pain inhibition strategies (Attention/Distraction Strategy, Stimulus Quality/Severity Strategy, and the Control Strategy.
The participants will be randomly assigned to receive Real Time fMRI Feedback of inverse activation in the PFC after each pain/rest block during the last 3 fMRI scans in the form of two simple thermometer images on the in-scanner computer display.
|
Total
n=18 Participants
Total of all reporting groups
|
|---|---|---|---|
|
Age, Categorical
<=18 years
|
0 Participants
n=93 Participants
|
0 Participants
n=4 Participants
|
0 Participants
n=27 Participants
|
|
Age, Categorical
Between 18 and 65 years
|
9 Participants
n=93 Participants
|
9 Participants
n=4 Participants
|
18 Participants
n=27 Participants
|
|
Age, Categorical
>=65 years
|
0 Participants
n=93 Participants
|
0 Participants
n=4 Participants
|
0 Participants
n=27 Participants
|
|
Age, Continuous
|
28 years
STANDARD_DEVIATION 7.65 • n=93 Participants
|
24.78 years
STANDARD_DEVIATION 3.90 • n=4 Participants
|
26.39 years
STANDARD_DEVIATION 5.95 • n=27 Participants
|
|
Sex: Female, Male
Female
|
5 Participants
n=93 Participants
|
4 Participants
n=4 Participants
|
9 Participants
n=27 Participants
|
|
Sex: Female, Male
Male
|
4 Participants
n=93 Participants
|
5 Participants
n=4 Participants
|
9 Participants
n=27 Participants
|
|
Race/Ethnicity, Customized
White Non-Hispanic
|
8 Participants
n=93 Participants
|
9 Participants
n=4 Participants
|
17 Participants
n=27 Participants
|
|
Race/Ethnicity, Customized
Black or African American
|
1 Participants
n=93 Participants
|
0 Participants
n=4 Participants
|
1 Participants
n=27 Participants
|
|
Region of Enrollment
United States
|
9 Participants
n=93 Participants
|
9 Participants
n=4 Participants
|
18 Participants
n=27 Participants
|
PRIMARY outcome
Timeframe: Before and After fMRI Paradigm, an average of 2 hoursAll participants will undergo thermal pain threshold testing directly before (Baseline) and after MRI. Participants will be asked to rate pain unpleasantness, on a scale of 0-10, before the fMRI Paradigm (Baseline) and directly after the fMRI paradigm (after MRI). 0="no unpleasantness" and 10="worst unpleasantness imaginable"
Outcome measures
| Measure |
ACC Real Time fMRI Feedback
n=9 Participants
Each participant will undergo thermal pain threshold assessments ten times using the Medoc Pathway System with MRI-compatible ATS Thermode (30mmX30mm; Medoc Inc, Israel). Participants will be instructed to "focus on the thermal stimuli" for the first 5 trials, and to engage in three cognitive pain inhibition strategies (Attention/Distraction Strategy, Stimulus Quality/Severity Strategy, and the Control Strategy.
The participants will be randomly assigned to receive Real Time fMRI Feedback of inverse activation in the rACC after each pain/rest block during the last 3 fMRI scans in the form of two simple thermometer images on the in-scanner computer display.
|
PFC Real Time fMRI Feedback
n=9 Participants
Each participant will undergo thermal pain threshold assessments ten times using the Medoc Pathway System with MRI-compatible ATS Thermode (30mmX30mm; Medoc Inc, Israel). Participants will be instructed to "focus on the thermal stimuli" for the first 5 trials, and to engage in three cognitive pain inhibition strategies (Attention/Distraction Strategy, Stimulus Quality/Severity Strategy, and the Control Strategy.
The participants will be randomly assigned to receive Real Time fMRI Feedback of inverse activation in the PFC after each pain/rest block during the last 3 fMRI scans in the form of two simple thermometer images on the in-scanner computer display.
|
|---|---|---|
|
Average Unpleasantness
Before fMRI Paradigm
|
3.75 units on a scale
Standard Deviation 2.48
|
3.56 units on a scale
Standard Deviation 2.22
|
|
Average Unpleasantness
After fMRI Paradigm
|
3.30 units on a scale
Standard Deviation 2.39
|
4.28 units on a scale
Standard Deviation 2.82
|
PRIMARY outcome
Timeframe: Before and After fMRI Paradigm, an average of 2 hoursAll participants will undergo thermal pain threshold testing directly before (Baseline) and after MRI scan.Participants will be asked to rate painfulness of the thermal stimuli applied, on a scale of 0-10, before the fMRI Paradigm (Baseline) and directly after the fMRI paradigm (after MRI). 0="no pain" and 10="worst pain imaginable"
Outcome measures
| Measure |
ACC Real Time fMRI Feedback
n=9 Participants
Each participant will undergo thermal pain threshold assessments ten times using the Medoc Pathway System with MRI-compatible ATS Thermode (30mmX30mm; Medoc Inc, Israel). Participants will be instructed to "focus on the thermal stimuli" for the first 5 trials, and to engage in three cognitive pain inhibition strategies (Attention/Distraction Strategy, Stimulus Quality/Severity Strategy, and the Control Strategy.
The participants will be randomly assigned to receive Real Time fMRI Feedback of inverse activation in the rACC after each pain/rest block during the last 3 fMRI scans in the form of two simple thermometer images on the in-scanner computer display.
|
PFC Real Time fMRI Feedback
n=9 Participants
Each participant will undergo thermal pain threshold assessments ten times using the Medoc Pathway System with MRI-compatible ATS Thermode (30mmX30mm; Medoc Inc, Israel). Participants will be instructed to "focus on the thermal stimuli" for the first 5 trials, and to engage in three cognitive pain inhibition strategies (Attention/Distraction Strategy, Stimulus Quality/Severity Strategy, and the Control Strategy.
The participants will be randomly assigned to receive Real Time fMRI Feedback of inverse activation in the PFC after each pain/rest block during the last 3 fMRI scans in the form of two simple thermometer images on the in-scanner computer display.
|
|---|---|---|
|
Average Pain Rating
Before fMRI Paradigm
|
3.79 units on a scale
Standard Deviation 2.20
|
3.64 units on a scale
Standard Deviation 2.30
|
|
Average Pain Rating
After fMRI Paradigm
|
3.88 units on a scale
Standard Deviation 2.21
|
4.43 units on a scale
Standard Deviation 2.23
|
PRIMARY outcome
Timeframe: Before and After fMRI Paradigm, an average of 2 hoursAll participants will undergo thermal pain threshold testing before and after fMRI paradigm. Participants will rate the ability to distract themselves from the thermal stimuli, on a scale of 0-10, before fMRI paradigm (Baseline) and after fMRI paradigm, 0="not able to distract at all" and 10="completely able to distract". A Higher rating represents greater ability to distract from thermal pain stimuli.
Outcome measures
| Measure |
ACC Real Time fMRI Feedback
n=9 Participants
Each participant will undergo thermal pain threshold assessments ten times using the Medoc Pathway System with MRI-compatible ATS Thermode (30mmX30mm; Medoc Inc, Israel). Participants will be instructed to "focus on the thermal stimuli" for the first 5 trials, and to engage in three cognitive pain inhibition strategies (Attention/Distraction Strategy, Stimulus Quality/Severity Strategy, and the Control Strategy.
The participants will be randomly assigned to receive Real Time fMRI Feedback of inverse activation in the rACC after each pain/rest block during the last 3 fMRI scans in the form of two simple thermometer images on the in-scanner computer display.
|
PFC Real Time fMRI Feedback
n=9 Participants
Each participant will undergo thermal pain threshold assessments ten times using the Medoc Pathway System with MRI-compatible ATS Thermode (30mmX30mm; Medoc Inc, Israel). Participants will be instructed to "focus on the thermal stimuli" for the first 5 trials, and to engage in three cognitive pain inhibition strategies (Attention/Distraction Strategy, Stimulus Quality/Severity Strategy, and the Control Strategy.
The participants will be randomly assigned to receive Real Time fMRI Feedback of inverse activation in the PFC after each pain/rest block during the last 3 fMRI scans in the form of two simple thermometer images on the in-scanner computer display.
|
|---|---|---|
|
Ability to Distract
Before fMRI Paradigm
|
4.92 units on a scale
Standard Deviation 1.96
|
3.83 units on a scale
Standard Deviation 1.25
|
|
Ability to Distract
After fMRI Paradigm
|
4.41 units on a scale
Standard Deviation 2.15
|
4.02 units on a scale
Standard Deviation 1.72
|
Adverse Events
Real Time fMRI Feedback
Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths
No Feedback
Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths
Serious adverse events
Adverse event data not reported
Other adverse events
Adverse event data not reported
Additional Information
Dr. Jeffrey J. Borckardt
Medical University of South Carolina
Phone: 8437923295
Email: [email protected]
Results disclosure agreements
- Principal investigator is a sponsor employee
- Publication restrictions are in place