Trial Outcomes & Findings for The Effects of Cognitive Behavioral Therapy and Transcranial Current Stimulation (tDCS) on Chronic Lower Back Pain (NCT NCT02483468)

NCT ID: NCT02483468

Last Updated: 2023-02-10

Results Overview

Average daily pain defined by item #5 on the Brief Pain Inventory (BPI). Scale on scale of 0-10; anchored with "0-no pain" and "10- pain as bad as you can imagine."

Recruitment status

COMPLETED

Study phase

PHASE2/PHASE3

Target enrollment

160 participants

Primary outcome timeframe

3 months

Results posted on

2023-02-10

Participant Flow

Participant milestones

Participant milestones
Measure
tDCS (Active)
Active Transcranial Direct Current Stimulation - Stimulation of the left dorsolateral prefrontal cortex with 2mA of electrical current Cognitive Behavioral Therapy for Pain: Cognitive-behavioral therapy (CBT) for pain management takes an active problem-solving approach to tackling the many challenges associated with the experience of chronic pain. Rather than seeing ones self as helpless and disabled because of pain, CBT encourages individuals to take back control and re-engage in activities. Transcranial Direct Current Stimulation: Electrical stimulation of the prefrontal cortex using 2mA of direct current
tDCS (Sham)
Inactive (sham) Transcranial Direct Current Stimulation Cognitive Behavioral Therapy for Pain: Cognitive-behavioral therapy (CBT) for pain management takes an active problem-solving approach to tackling the many challenges associated with the experience of chronic pain. Rather than seeing ones self as helpless and disabled because of pain, CBT encourages individuals to take back control and re-engage in activities. Sham Transcranial Direct Current Stimulation: Sham stimulation of the left dorsolateral prefrontal cortex
Overall Study
STARTED
65
51
Overall Study
COMPLETED
46
30
Overall Study
NOT COMPLETED
19
21

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

The Effects of Cognitive Behavioral Therapy and Transcranial Current Stimulation (tDCS) on Chronic Lower Back Pain

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
tDCS
n=65 Participants
Active Transcranial Direct Current Stimulation - Stimulation of the left dorsolateral prefrontal cortex with 2mA of electrical current Cognitive Behavioral Therapy for Pain: Cognitive-behavioral therapy (CBT) for pain management takes an active problem-solving approach to tackling the many challenges associated with the experience of chronic pain. Rather than seeing ones self as helpless and disabled because of pain, CBT encourages individuals to take back control and re-engage in activities. Transcranial Direct Current Stimulation: Electrical stimulation of the prefrontal cortex using 2mA of direct current
tDCS (Sham)
n=51 Participants
Inactive (sham) Transcranial Direct Current Stimulation Cognitive Behavioral Therapy for Pain: Cognitive-behavioral therapy (CBT) for pain management takes an active problem-solving approach to tackling the many challenges associated with the experience of chronic pain. Rather than seeing ones self as helpless and disabled because of pain, CBT encourages individuals to take back control and re-engage in activities. Sham Transcranial Direct Current Stimulation: Sham stimulation of the left dorsolateral prefrontal cortex
Total
n=116 Participants
Total of all reporting groups
Age, Continuous
53.03 years
STANDARD_DEVIATION 11.98 • n=5 Participants
53.08 years
STANDARD_DEVIATION 10.84 • n=7 Participants
53.05 years
STANDARD_DEVIATION 11.44 • n=5 Participants
Sex: Female, Male
Female
12 Participants
n=5 Participants
9 Participants
n=7 Participants
21 Participants
n=5 Participants
Sex: Female, Male
Male
53 Participants
n=5 Participants
42 Participants
n=7 Participants
95 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
2 Participants
n=5 Participants
1 Participants
n=7 Participants
3 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
59 Participants
n=5 Participants
46 Participants
n=7 Participants
105 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
4 Participants
n=5 Participants
4 Participants
n=7 Participants
8 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
1 Participants
n=5 Participants
0 Participants
n=7 Participants
1 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
23 Participants
n=5 Participants
18 Participants
n=7 Participants
41 Participants
n=5 Participants
Race (NIH/OMB)
White
39 Participants
n=5 Participants
30 Participants
n=7 Participants
69 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
2 Participants
n=5 Participants
0 Participants
n=7 Participants
2 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
3 Participants
n=7 Participants
3 Participants
n=5 Participants

PRIMARY outcome

Timeframe: 3 months

Average daily pain defined by item #5 on the Brief Pain Inventory (BPI). Scale on scale of 0-10; anchored with "0-no pain" and "10- pain as bad as you can imagine."

Outcome measures

Outcome measures
Measure
tDCS (Active)
n=46 Participants
Active Transcranial Direct Current Stimulation - Stimulation of the left dorsolateral prefrontal cortex with 2mA of electrical current Cognitive Behavioral Therapy for Pain: Cognitive-behavioral therapy (CBT) for pain management takes an active problem-solving approach to tackling the many challenges associated with the experience of chronic pain. Rather than seeing ones self as helpless and disabled because of pain, CBT encourages individuals to take back control and re-engage in activities. Transcranial Direct Current Stimulation: Electrical stimulation of the prefrontal cortex using 2mA of direct current
tDCS (Sham)
n=30 Participants
Inactive (sham) Transcranial Direct Current Stimulation Cognitive Behavioral Therapy for Pain: Cognitive-behavioral therapy (CBT) for pain management takes an active problem-solving approach to tackling the many challenges associated with the experience of chronic pain. Rather than seeing ones self as helpless and disabled because of pain, CBT encourages individuals to take back control and re-engage in activities. Sham Transcranial Direct Current Stimulation: Sham stimulation of the left dorsolateral prefrontal cortex
Average Daily Pain
5.41 score on a scale
Standard Error .33
5.96 score on a scale
Standard Error .38

PRIMARY outcome

Timeframe: 3 months

Pain interference defined by the mean of items 9.a ---9.i; the measure is scored on a scale of 0--10, anchored by "0-does not interfere" and "10- completely interferes"

Outcome measures

Outcome measures
Measure
tDCS (Active)
n=46 Participants
Active Transcranial Direct Current Stimulation - Stimulation of the left dorsolateral prefrontal cortex with 2mA of electrical current Cognitive Behavioral Therapy for Pain: Cognitive-behavioral therapy (CBT) for pain management takes an active problem-solving approach to tackling the many challenges associated with the experience of chronic pain. Rather than seeing ones self as helpless and disabled because of pain, CBT encourages individuals to take back control and re-engage in activities. Transcranial Direct Current Stimulation: Electrical stimulation of the prefrontal cortex using 2mA of direct current
tDCS (Sham)
n=30 Participants
Inactive (sham) Transcranial Direct Current Stimulation Cognitive Behavioral Therapy for Pain: Cognitive-behavioral therapy (CBT) for pain management takes an active problem-solving approach to tackling the many challenges associated with the experience of chronic pain. Rather than seeing ones self as helpless and disabled because of pain, CBT encourages individuals to take back control and re-engage in activities. Sham Transcranial Direct Current Stimulation: Sham stimulation of the left dorsolateral prefrontal cortex
Pain Interference
5.00 score on a scale
Standard Error .39
5.30 score on a scale
Standard Error .44

PRIMARY outcome

Timeframe: 3 months

Pain catastrophizing defined by total score of 13 items pain catastrophizing scale. This measure has a total score range of 0-52 where for each item is anchored by "0-not at all" and "4-all the time." Larger total score indicates more catastrophizing.

Outcome measures

Outcome measures
Measure
tDCS (Active)
n=46 Participants
Active Transcranial Direct Current Stimulation - Stimulation of the left dorsolateral prefrontal cortex with 2mA of electrical current Cognitive Behavioral Therapy for Pain: Cognitive-behavioral therapy (CBT) for pain management takes an active problem-solving approach to tackling the many challenges associated with the experience of chronic pain. Rather than seeing ones self as helpless and disabled because of pain, CBT encourages individuals to take back control and re-engage in activities. Transcranial Direct Current Stimulation: Electrical stimulation of the prefrontal cortex using 2mA of direct current
tDCS (Sham)
n=30 Participants
Inactive (sham) Transcranial Direct Current Stimulation Cognitive Behavioral Therapy for Pain: Cognitive-behavioral therapy (CBT) for pain management takes an active problem-solving approach to tackling the many challenges associated with the experience of chronic pain. Rather than seeing ones self as helpless and disabled because of pain, CBT encourages individuals to take back control and re-engage in activities. Sham Transcranial Direct Current Stimulation: Sham stimulation of the left dorsolateral prefrontal cortex
Pain Catastrophizing
20.58 score on a scale
Standard Error 2.14
18.11 score on a scale
Standard Error 2.55

SECONDARY outcome

Timeframe: 3 months

Current Opioid Misuse Measure scores. 17-item Likert-type scale (For each opioid misuse risk behavior item, 0="Never and 4="Very often"). Possible range is 0 to 68. Higher scores indicate more opioid misuse concerns.

Outcome measures

Outcome measures
Measure
tDCS (Active)
n=46 Participants
Active Transcranial Direct Current Stimulation - Stimulation of the left dorsolateral prefrontal cortex with 2mA of electrical current Cognitive Behavioral Therapy for Pain: Cognitive-behavioral therapy (CBT) for pain management takes an active problem-solving approach to tackling the many challenges associated with the experience of chronic pain. Rather than seeing ones self as helpless and disabled because of pain, CBT encourages individuals to take back control and re-engage in activities. Transcranial Direct Current Stimulation: Electrical stimulation of the prefrontal cortex using 2mA of direct current
tDCS (Sham)
n=30 Participants
Inactive (sham) Transcranial Direct Current Stimulation Cognitive Behavioral Therapy for Pain: Cognitive-behavioral therapy (CBT) for pain management takes an active problem-solving approach to tackling the many challenges associated with the experience of chronic pain. Rather than seeing ones self as helpless and disabled because of pain, CBT encourages individuals to take back control and re-engage in activities. Sham Transcranial Direct Current Stimulation: Sham stimulation of the left dorsolateral prefrontal cortex
Opioid Misuse
10.76 score on a scale
Standard Deviation 9.82
9.80 score on a scale
Standard Deviation 7.25

SECONDARY outcome

Timeframe: 3 months

Depression: Beck Depression Inventory-II (BDI-II): The Beck Depression Inventory (BDI) is a 21-item, self-report rating inventory that measures characteristic attitudes and symptoms of depression. Possible range is 0 to 63 points. Higher scores mean more depression symptoms.

Outcome measures

Outcome measures
Measure
tDCS (Active)
n=47 Participants
Active Transcranial Direct Current Stimulation - Stimulation of the left dorsolateral prefrontal cortex with 2mA of electrical current Cognitive Behavioral Therapy for Pain: Cognitive-behavioral therapy (CBT) for pain management takes an active problem-solving approach to tackling the many challenges associated with the experience of chronic pain. Rather than seeing ones self as helpless and disabled because of pain, CBT encourages individuals to take back control and re-engage in activities. Transcranial Direct Current Stimulation: Electrical stimulation of the prefrontal cortex using 2mA of direct current
tDCS (Sham)
n=30 Participants
Inactive (sham) Transcranial Direct Current Stimulation Cognitive Behavioral Therapy for Pain: Cognitive-behavioral therapy (CBT) for pain management takes an active problem-solving approach to tackling the many challenges associated with the experience of chronic pain. Rather than seeing ones self as helpless and disabled because of pain, CBT encourages individuals to take back control and re-engage in activities. Sham Transcranial Direct Current Stimulation: Sham stimulation of the left dorsolateral prefrontal cortex
Psychiatric Functioning (Depression)
16.00 score on a scale
Standard Deviation 12.47
16.87 score on a scale
Standard Deviation 13.54

SECONDARY outcome

Timeframe: 3 Months

Beck Anxiety Inventory (BAI): 21-item self-report inventory used to assess anxiety levels in adults and adolescents. The score range is 0-63. Higher scores mean more anxiety symptoms.

Outcome measures

Outcome measures
Measure
tDCS (Active)
n=46 Participants
Active Transcranial Direct Current Stimulation - Stimulation of the left dorsolateral prefrontal cortex with 2mA of electrical current Cognitive Behavioral Therapy for Pain: Cognitive-behavioral therapy (CBT) for pain management takes an active problem-solving approach to tackling the many challenges associated with the experience of chronic pain. Rather than seeing ones self as helpless and disabled because of pain, CBT encourages individuals to take back control and re-engage in activities. Transcranial Direct Current Stimulation: Electrical stimulation of the prefrontal cortex using 2mA of direct current
tDCS (Sham)
n=30 Participants
Inactive (sham) Transcranial Direct Current Stimulation Cognitive Behavioral Therapy for Pain: Cognitive-behavioral therapy (CBT) for pain management takes an active problem-solving approach to tackling the many challenges associated with the experience of chronic pain. Rather than seeing ones self as helpless and disabled because of pain, CBT encourages individuals to take back control and re-engage in activities. Sham Transcranial Direct Current Stimulation: Sham stimulation of the left dorsolateral prefrontal cortex
Psychiatric Functioning (Anxiety)
15.88 score on a scale
Standard Deviation 12.94
16.38 score on a scale
Standard Deviation 12.61

SECONDARY outcome

Timeframe: 3 Months

PTSD Checklist (PCL) 20-item self-report measure of the DSM-5 symptoms of PTSD: Score range: 0-80. Higher scores mean more post-traumatic stress symptoms.

Outcome measures

Outcome measures
Measure
tDCS (Active)
n=41 Participants
Active Transcranial Direct Current Stimulation - Stimulation of the left dorsolateral prefrontal cortex with 2mA of electrical current Cognitive Behavioral Therapy for Pain: Cognitive-behavioral therapy (CBT) for pain management takes an active problem-solving approach to tackling the many challenges associated with the experience of chronic pain. Rather than seeing ones self as helpless and disabled because of pain, CBT encourages individuals to take back control and re-engage in activities. Transcranial Direct Current Stimulation: Electrical stimulation of the prefrontal cortex using 2mA of direct current
tDCS (Sham)
n=29 Participants
Inactive (sham) Transcranial Direct Current Stimulation Cognitive Behavioral Therapy for Pain: Cognitive-behavioral therapy (CBT) for pain management takes an active problem-solving approach to tackling the many challenges associated with the experience of chronic pain. Rather than seeing ones self as helpless and disabled because of pain, CBT encourages individuals to take back control and re-engage in activities. Sham Transcranial Direct Current Stimulation: Sham stimulation of the left dorsolateral prefrontal cortex
Psychiatric Functioning (PTSD)
21.22 score on a scale
Standard Deviation 14.13
20.37 score on a scale
Standard Deviation 14.18

SECONDARY outcome

Timeframe: 3 Months

The Pittsburgh Sleep Quality Index (PSQI) is a self-rated. questionnaire which assesses sleep quality and disturbances. Range of scores: 0-21. Higher scores mean more sleep disturbance.

Outcome measures

Outcome measures
Measure
tDCS (Active)
n=8 Participants
Active Transcranial Direct Current Stimulation - Stimulation of the left dorsolateral prefrontal cortex with 2mA of electrical current Cognitive Behavioral Therapy for Pain: Cognitive-behavioral therapy (CBT) for pain management takes an active problem-solving approach to tackling the many challenges associated with the experience of chronic pain. Rather than seeing ones self as helpless and disabled because of pain, CBT encourages individuals to take back control and re-engage in activities. Transcranial Direct Current Stimulation: Electrical stimulation of the prefrontal cortex using 2mA of direct current
tDCS (Sham)
n=13 Participants
Inactive (sham) Transcranial Direct Current Stimulation Cognitive Behavioral Therapy for Pain: Cognitive-behavioral therapy (CBT) for pain management takes an active problem-solving approach to tackling the many challenges associated with the experience of chronic pain. Rather than seeing ones self as helpless and disabled because of pain, CBT encourages individuals to take back control and re-engage in activities. Sham Transcranial Direct Current Stimulation: Sham stimulation of the left dorsolateral prefrontal cortex
Psychiatric Functioning (Sleep)
10.75 score on a scale
Standard Deviation 5.8
11.23 score on a scale
Standard Deviation 3.94

Adverse Events

tDCS (Active)

Serious events: 0 serious events
Other events: 2 other events
Deaths: 1 deaths

tDCS (Sham)

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

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
tDCS (Active)
n=65 participants at risk
Active Transcranial Direct Current Stimulation - Stimulation of the left dorsolateral prefrontal cortex with 2mA of electrical current Cognitive Behavioral Therapy for Pain: Cognitive-behavioral therapy (CBT) for pain management takes an active problem-solving approach to tackling the many challenges associated with the experience of chronic pain. Rather than seeing ones self as helpless and disabled because of pain, CBT encourages individuals to take back control and re-engage in activities. Transcranial Direct Current Stimulation: Electrical stimulation of the prefrontal cortex using 2mA of direct current
tDCS (Sham)
n=51 participants at risk
Inactive (sham) Transcranial Direct Current Stimulation Cognitive Behavioral Therapy for Pain: Cognitive-behavioral therapy (CBT) for pain management takes an active problem-solving approach to tackling the many challenges associated with the experience of chronic pain. Rather than seeing ones self as helpless and disabled because of pain, CBT encourages individuals to take back control and re-engage in activities. Sham Transcranial Direct Current Stimulation: Sham stimulation of the left dorsolateral prefrontal cortex
Skin and subcutaneous tissue disorders
skin irritation
1.5%
1/65 • Number of events 1 • 6 months
0.00%
0/51 • 6 months
Social circumstances
Car accident
1.5%
1/65 • Number of events 1 • 6 months
0.00%
0/51 • 6 months

Additional Information

Jeffrey J Borckardt, PhD

Ralph H. Johnson VA Medical Center, Charleston, SC & Medical University of South Carolina

Phone: 843.792.3295

Results disclosure agreements

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