Trial Outcomes & Findings for Developing Brain Stimulation as a Treatment for Chronic Pain in Opiate Dependent (NCT NCT03681769)

NCT ID: NCT03681769

Last Updated: 2023-02-10

Results Overview

Based on pilot data, the investigators expect an interaction between treatment (DLPFC or MC rTMS) and time (Before vs. After rTMS) on reported painfulness using a quantitative sensory testing technique that determines thermal pain threshold.

Recruitment status

COMPLETED

Study phase

EARLY_PHASE1

Target enrollment

24 participants

Primary outcome timeframe

Change from baseline to 16 weeks

Results posted on

2023-02-10

Participant Flow

Participant milestones

Participant milestones
Measure
Intermittent Theta Burst Stimulation (iTBS) to the Left dlPFC
For intermittent theta burst stimulation (iTBS) (Aim 1), participants will receive 20 trains of stimulation over the dlPFC (middle frontal gyrus) (F3) (each train: 3 pulse bursts presented at 5 hertz, 15 pulses/sec for 2 sec, 8 sec rest, 200 pulses/train; 110% resting motor threshold, MagPro; 600 pulses total) using a figure 8 coil (Coil Cool-B65 A/P). iTBS to the left dlPFC: This will be delivered with the Magventure Magpro system; 600 pulses with the active sham coil (double blinded using the Universal Serial Bus (USB) key).
Intermittent Theta Burst Stimulation (iTBS) to the Motor Cortex
For intermittent theta burst stimulation (iTBS) (Aim 1), participants will receive 20 trains of stimulation over the motor cortex (each train: 3 pulse bursts presented at 5 hertz, 15 pulses/sec for 2 sec, 8 sec rest, 200 pulses/train; 110% resting motor threshold, MagPro; 600 pulses total) using a figure 8 coil (Coil Cool-B65 A/P). iTBS to the Motor Cortex: This will be delivered with the Magventure Magpro system; 600 pulses with the active sham coil (double blinded using the Universal Serial Bus (USB) key).
Overall Study
STARTED
11
11
Overall Study
COMPLETED
10
10
Overall Study
NOT COMPLETED
1
1

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Developing Brain Stimulation as a Treatment for Chronic Pain in Opiate Dependent

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Intermittent Theta Burst Stimulation (iTBS) to the Left dlPFC
n=11 Participants
For intermittent theta burst stimulation (iTBS) (Aim 1), participants will receive 20 trains of stimulation over the dlPFC (middle frontal gyrus) (F3) (each train: 3 pulse bursts presented at 5 hertz, 15 pulses/sec for 2 sec, 8 sec rest, 200 pulses/train; 110% resting motor threshold, MagPro; 600 pulses total) using a figure 8 coil (Coil Cool-B65 A/P). iTBS to the left dlPFC: This will be delivered with the Magventure Magpro system; 600 pulses with the active sham coil (double blinded using the Universal Serial Bus (USB) key).
Intermittent Theta Burst Stimulation (iTBS) to the Motor Cortex
n=11 Participants
For intermittent theta burst stimulation (iTBS) (Aim 1), participants will receive 20 trains of stimulation over the dlPFC (middle frontal gyrus) (F3) (each train: 3 pulse bursts presented at 5 hertz, 15 pulses/sec for 2 sec, 8 sec rest, 200 pulses/train; 110% resting motor threshold, MagPro; 600 pulses total) using a figure 8 coil (Coil Cool-B65 A/P). iTBS to the Motor Cortex: This will be delivered with the Magventure Magpro system; 600 pulses with the active sham coil (double blinded using the Universal Serial Bus (USB) key).
Total
n=22 Participants
Total of all reporting groups
Age, Continuous
49.9 Years
STANDARD_DEVIATION 14.2 • n=5 Participants
57.7 Years
STANDARD_DEVIATION 10.9 • n=7 Participants
53.8 Years
STANDARD_DEVIATION 13.0 • n=5 Participants
Sex: Female, Male
Female
6 Participants
n=5 Participants
6 Participants
n=7 Participants
12 Participants
n=5 Participants
Sex: Female, Male
Male
5 Participants
n=5 Participants
5 Participants
n=7 Participants
10 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Asian
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Black or African American
2 Participants
n=5 Participants
2 Participants
n=7 Participants
4 Participants
n=5 Participants
Race (NIH/OMB)
White
9 Participants
n=5 Participants
9 Participants
n=7 Participants
18 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants

PRIMARY outcome

Timeframe: Change from baseline to 16 weeks

Based on pilot data, the investigators expect an interaction between treatment (DLPFC or MC rTMS) and time (Before vs. After rTMS) on reported painfulness using a quantitative sensory testing technique that determines thermal pain threshold.

Outcome measures

Outcome measures
Measure
Intermittent Theta Burst Stimulation (iTBS) to the Left dlPFC
n=11 Participants
For intermittent theta burst stimulation (iTBS) (Aim 1), participants will receive 20 trains of stimulation over the dlPFC (middle frontal gyrus) (F3) (each train: 3 pulse bursts presented at 5 hertz, 15 pulses/sec for 2 sec, 8 sec rest, 200 pulses/train; 110% resting motor threshold, MagPro; 600 pulses total) using a figure 8 coil (Coil Cool-B65 A/P). iTBS to the left dlPFC: This will be delivered with the Magventure Magpro system; 600 pulses with the active sham coil (double blinded using the Universal Serial Bus (USB) key).
Intermittent Theta Burst Stimulation (iTBS) to the Motor Cortex
n=11 Participants
For intermittent theta burst stimulation (iTBS) (Aim 1), participants will receive 20 trains of stimulation over the Motor Cortex (each train: 3 pulse bursts presented at 5 hertz, 15 pulses/sec for 2 sec, 8 sec rest, 200 pulses/train; 110% resting motor threshold, MagPro; 600 pulses total) using a figure 8 coil (Coil Cool-B65 A/P). iTBS to the Motor Cortex: This will be delivered with the Magventure Magpro system; 600 pulses with the active sham coil (double blinded using the Universal Serial Bus (USB) key).
Change in Quantitative Pain Testing Following Active TMS Compared to Baseline
1.4 Change from Baseline (degrees C)
Standard Deviation .3
.3 Change from Baseline (degrees C)
Standard Deviation .15

SECONDARY outcome

Timeframe: Patient reported pain/discomfort at 16 weeks.

The investigators expect reductions in self reported pain assessment via a numeric pain rating scale when comparing active vs sham. Pain rating values will be assessed and reported through the duration of the study. Numeric Rating Scale (NRS) for pain has a range of 0 to 10 where 0=no pain/discomfort and 10=worst pain/discomfort imaginable. Higher scores mean more pain/discomfort.

Outcome measures

Outcome measures
Measure
Intermittent Theta Burst Stimulation (iTBS) to the Left dlPFC
n=11 Participants
For intermittent theta burst stimulation (iTBS) (Aim 1), participants will receive 20 trains of stimulation over the dlPFC (middle frontal gyrus) (F3) (each train: 3 pulse bursts presented at 5 hertz, 15 pulses/sec for 2 sec, 8 sec rest, 200 pulses/train; 110% resting motor threshold, MagPro; 600 pulses total) using a figure 8 coil (Coil Cool-B65 A/P). iTBS to the left dlPFC: This will be delivered with the Magventure Magpro system; 600 pulses with the active sham coil (double blinded using the Universal Serial Bus (USB) key).
Intermittent Theta Burst Stimulation (iTBS) to the Motor Cortex
n=11 Participants
For intermittent theta burst stimulation (iTBS) (Aim 1), participants will receive 20 trains of stimulation over the Motor Cortex (each train: 3 pulse bursts presented at 5 hertz, 15 pulses/sec for 2 sec, 8 sec rest, 200 pulses/train; 110% resting motor threshold, MagPro; 600 pulses total) using a figure 8 coil (Coil Cool-B65 A/P). iTBS to the Motor Cortex: This will be delivered with the Magventure Magpro system; 600 pulses with the active sham coil (double blinded using the Universal Serial Bus (USB) key).
Change in Patient Reported Pain and Discomfort
5.3 score on a scale
Standard Deviation 2.4
5.9 score on a scale
Standard Deviation 2.0

Adverse Events

Intermittent Theta Burst Stimulation (iTBS) to the Left dlPFC

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Intermittent Theta Burst Stimulation (iTBS) to the Motor Cortex

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. Jeff Borckardt

Medical University of South Carolina

Phone: 843-792-3295

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place