Trial Outcomes & Findings for Transcranial Direct Current Stimulation Potentiation of Fear Extinction in OCD (NCT NCT05521074)

NCT ID: NCT05521074

Last Updated: 2026-09-04

Results Overview

Greater reduction in the difference in frontomedial theta event-related spectral perturbation (ERSP) between CS+ vs CS- indicates more complete neural extinction of the conditioned fear response, reflecting diminished differential threat processing such that the previously conditioned stimulus is being processed more similarly to the safe stimulus.

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

86 participants

Primary outcome timeframe

Extinction Recall Phase (Day 2)

Results posted on

2026-09-04

Participant Flow

Participant milestones

Participant milestones
Measure
Active tDCS Administered Before Extinction Phase
The investigators will stimulate using 2mA of direct current during 20 min before the extinction phase of the fear conditioning and extinction paradigm.
Active tDCS Administered During Extinction Phase
The investigators will stimulate using 2mA of direct current during 20 min during the extinction phase of the fear conditioning and extinction paradigm.
Active tDCS Administered After Extinction Phase
The investigators will stimulate using 2mA of direct current during 20 min after the extinction phase of the fear conditioning and extinction paradigm.
Sham tDCS
Sham will consist of a ramp up and down of activity (from 0 to 2mA and back to 0mA) in the first 30sec and again in the last 30 sec of the 20min stimulation period (which will occur before/during/after the extinction phase). No active tDCS will occur.
Overall Study
STARTED
21
22
21
22
Overall Study
COMPLETED
21
19
21
22
Overall Study
NOT COMPLETED
0
3
0
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Transcranial Direct Current Stimulation Potentiation of Fear Extinction in OCD

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Active tDCS Administered Before Extinction Phase
n=21 Participants
The investigators will stimulate using 2mA of direct current during 20 min before the extinction phase of the fear conditioning and extinction paradigm.
Active tDCS Administered During Extinction Phase
n=22 Participants
The investigators will stimulate using 2mA of direct current during 20 min during the extinction phase of the fear conditioning and extinction paradigm.
Active tDCS Administered After Extinction Phase
n=21 Participants
The investigators will stimulate using 2mA of direct current during 20 min after the extinction phase of the fear conditioning and extinction paradigm.
Sham tDCS
n=22 Participants
Sham will consist of a ramp up and down of activity (from 0 to 2mA and back to 0mA) in the first 30sec and again in the last 30 sec of the 20min stimulation period (which will occur before/during/after the extinction phase). No active tDCS will occur.
Total
n=86 Participants
Total of all reporting groups
Age, Continuous
30.0 years
STANDARD_DEVIATION 9.8 • n=23 Participants
28.0 years
STANDARD_DEVIATION 10.4 • n=23 Participants
26.3 years
STANDARD_DEVIATION 5.6 • n=22 Participants
24.1 years
STANDARD_DEVIATION 3.4 • n=21 Participants
27.1 years
STANDARD_DEVIATION 8.0 • n=24 Participants
Sex/Gender, Customized
Sex · Male
3 Participants
n=23 Participants
8 Participants
n=23 Participants
5 Participants
n=22 Participants
4 Participants
n=21 Participants
20 Participants
n=24 Participants
Sex/Gender, Customized
Sex · Female
18 Participants
n=23 Participants
14 Participants
n=23 Participants
16 Participants
n=22 Participants
17 Participants
n=21 Participants
65 Participants
n=24 Participants
Sex/Gender, Customized
Sex · Prefer not to answer
0 Participants
n=23 Participants
0 Participants
n=23 Participants
0 Participants
n=22 Participants
1 Participants
n=21 Participants
1 Participants
n=24 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants
n=23 Participants
2 Participants
n=23 Participants
0 Participants
n=22 Participants
1 Participants
n=21 Participants
4 Participants
n=24 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
20 Participants
n=23 Participants
20 Participants
n=23 Participants
21 Participants
n=22 Participants
21 Participants
n=21 Participants
82 Participants
n=24 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=23 Participants
0 Participants
n=23 Participants
0 Participants
n=22 Participants
0 Participants
n=21 Participants
0 Participants
n=24 Participants
Race/Ethnicity, Customized
Race · White
15 Participants
n=23 Participants
14 Participants
n=23 Participants
16 Participants
n=22 Participants
18 Participants
n=21 Participants
63 Participants
n=24 Participants
Race/Ethnicity, Customized
Race · Black/African American
0 Participants
n=23 Participants
0 Participants
n=23 Participants
1 Participants
n=22 Participants
2 Participants
n=21 Participants
3 Participants
n=24 Participants
Race/Ethnicity, Customized
Race · Asian
5 Participants
n=23 Participants
2 Participants
n=23 Participants
3 Participants
n=22 Participants
1 Participants
n=21 Participants
11 Participants
n=24 Participants
Race/Ethnicity, Customized
Race · More than one race
1 Participants
n=23 Participants
3 Participants
n=23 Participants
1 Participants
n=22 Participants
1 Participants
n=21 Participants
6 Participants
n=24 Participants
Race/Ethnicity, Customized
Race · American Indian or Alaska Native
0 Participants
n=23 Participants
0 Participants
n=23 Participants
0 Participants
n=22 Participants
0 Participants
n=21 Participants
0 Participants
n=24 Participants
Race/Ethnicity, Customized
Race · Another race
0 Participants
n=23 Participants
2 Participants
n=23 Participants
0 Participants
n=22 Participants
0 Participants
n=21 Participants
2 Participants
n=24 Participants
Race/Ethnicity, Customized
Race · Native Hawaiian or Pacific Islander
0 Participants
n=23 Participants
0 Participants
n=23 Participants
0 Participants
n=22 Participants
0 Participants
n=21 Participants
0 Participants
n=24 Participants
Race/Ethnicity, Customized
Race · Unknown/not reported
0 Participants
n=23 Participants
1 Participants
n=23 Participants
0 Participants
n=22 Participants
0 Participants
n=21 Participants
1 Participants
n=24 Participants
Region of Enrollment
United States
21 Participants
n=23 Participants
22 Participants
n=23 Participants
21 Participants
n=22 Participants
22 Participants
n=21 Participants
86 Participants
n=24 Participants
Y-BOCS
19.9 Scores on a scale
STANDARD_DEVIATION 4.6 • n=23 Participants
20.2 Scores on a scale
STANDARD_DEVIATION 5.1 • n=23 Participants
19.2 Scores on a scale
STANDARD_DEVIATION 3.7 • n=22 Participants
21.0 Scores on a scale
STANDARD_DEVIATION 4.3 • n=21 Participants
20.1 Scores on a scale
STANDARD_DEVIATION 4.4 • n=24 Participants

PRIMARY outcome

Timeframe: Extinction Recall Phase (Day 2)

Population: Participants (n=11) were excluded from EEG analyses for the following reasons: poor data quality (n=6); participant dropped out (n=3); EEG data/triggers missing (n=2).

Greater reduction in the difference in frontomedial theta event-related spectral perturbation (ERSP) between CS+ vs CS- indicates more complete neural extinction of the conditioned fear response, reflecting diminished differential threat processing such that the previously conditioned stimulus is being processed more similarly to the safe stimulus.

Outcome measures

Outcome measures
Measure
Active tDCS Administered Before Extinction Phase
n=19 Participants
The investigators will stimulate using 2mA of direct current during 20 min before the extinction phase of the fear conditioning and extinction paradigm.
Active tDCS Administered During Extinction Phase
n=17 Participants
The investigators will stimulate using 2mA of direct current during 20 min during the extinction phase of the fear conditioning and extinction paradigm.
Active tDCS Administered After Extinction Phase
n=19 Participants
The investigators will stimulate using 2mA of direct current during 20 min after the extinction phase of the fear conditioning and extinction paradigm.
Sham tDCS
n=20 Participants
Sham will consist of a ramp up and down of activity (from 0 to 2mA and back to 0mA) in the first 30sec and again in the last 30 sec of the 20min stimulation period (which will occur before/during/after the extinction phase). No active tDCS will occur.
Difference in Frontomedial Theta Power (EEG) to the Conditioned Stimulus (CS+) Versus the Unconditioned Stimulus (CS-) Between tDCS Conditions During Extinction Recall
-0.30 Decibel (dB)
Standard Deviation 1.4
-0.83 Decibel (dB)
Standard Deviation 2.0
-0.26 Decibel (dB)
Standard Deviation 1.8
-0.37 Decibel (dB)
Standard Deviation 1.8

PRIMARY outcome

Timeframe: Extinction Recall Phase (Day 2)

Population: Participants (n=19) were excluded from SC analyses for the following reasons: poor data quality (n=6); participant dropped out (n=3); SC equipment error (n=1); SC non-responders (i.e., individuals with a mean unconditioned SCR of less than 0.1 μS; n=9).

Higher skin conductance (microSiemens) indicates greater fear intensity.

Outcome measures

Outcome measures
Measure
Active tDCS Administered Before Extinction Phase
n=16 Participants
The investigators will stimulate using 2mA of direct current during 20 min before the extinction phase of the fear conditioning and extinction paradigm.
Active tDCS Administered During Extinction Phase
n=16 Participants
The investigators will stimulate using 2mA of direct current during 20 min during the extinction phase of the fear conditioning and extinction paradigm.
Active tDCS Administered After Extinction Phase
n=18 Participants
The investigators will stimulate using 2mA of direct current during 20 min after the extinction phase of the fear conditioning and extinction paradigm.
Sham tDCS
n=17 Participants
Sham will consist of a ramp up and down of activity (from 0 to 2mA and back to 0mA) in the first 30sec and again in the last 30 sec of the 20min stimulation period (which will occur before/during/after the extinction phase). No active tDCS will occur.
Difference in the Square Root Skin Conductance Response (SCR) to the Conditioned Stimulus (CS+) Versus the Unconditioned Stimulus (CS-) Between tDCS Conditions During the First 12 Trials of Extinction Recall
0.13 microSiemens
Standard Deviation 0.35
0.24 microSiemens
Standard Deviation 0.42
0.17 microSiemens
Standard Deviation 0.38
0.24 microSiemens
Standard Deviation 0.43

Adverse Events

Active tDCS Administered Before Extinction Phase

Serious events: 0 serious events
Other events: 21 other events
Deaths: 0 deaths

Active tDCS Administered During Extinction Phase

Serious events: 0 serious events
Other events: 21 other events
Deaths: 0 deaths

Active tDCS Administered After Extinction Phase

Serious events: 0 serious events
Other events: 21 other events
Deaths: 0 deaths

Sham tDCS

Serious events: 0 serious events
Other events: 21 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
Active tDCS Administered Before Extinction Phase
n=21 participants at risk
The investigators will stimulate using 2mA of direct current during 20 min before the extinction phase of the fear conditioning and extinction paradigm.
Active tDCS Administered During Extinction Phase
n=22 participants at risk
The investigators will stimulate using 2mA of direct current during 20 min during the extinction phase of the fear conditioning and extinction paradigm.
Active tDCS Administered After Extinction Phase
n=21 participants at risk
The investigators will stimulate using 2mA of direct current during 20 min after the extinction phase of the fear conditioning and extinction paradigm.
Sham tDCS
n=22 participants at risk
Sham will consist of a ramp up and down of activity (from 0 to 2mA and back to 0mA) in the first 30sec and again in the last 30 sec of the 20min stimulation period (which will occur before/during/after the extinction phase). No active tDCS will occur.
General disorders
Sleepiness
47.6%
10/21 • From enrollment (virtual consent) until final study visit (Day 2)
At the start of the experimental visits, participants were asked about any major physical health problems/injuries, seeing a physical or mental health provider, hospitalizations, or any other major problems/concerns. At the end of the experimental visits, they were asked if they experienced any of the side effects of tDCS included on a 10-item list. The PI reviewed each AE during weekly study meetings to discuss relatedness to the study, severity, and corrective actions.
40.9%
9/22 • From enrollment (virtual consent) until final study visit (Day 2)
At the start of the experimental visits, participants were asked about any major physical health problems/injuries, seeing a physical or mental health provider, hospitalizations, or any other major problems/concerns. At the end of the experimental visits, they were asked if they experienced any of the side effects of tDCS included on a 10-item list. The PI reviewed each AE during weekly study meetings to discuss relatedness to the study, severity, and corrective actions.
38.1%
8/21 • From enrollment (virtual consent) until final study visit (Day 2)
At the start of the experimental visits, participants were asked about any major physical health problems/injuries, seeing a physical or mental health provider, hospitalizations, or any other major problems/concerns. At the end of the experimental visits, they were asked if they experienced any of the side effects of tDCS included on a 10-item list. The PI reviewed each AE during weekly study meetings to discuss relatedness to the study, severity, and corrective actions.
50.0%
11/22 • From enrollment (virtual consent) until final study visit (Day 2)
At the start of the experimental visits, participants were asked about any major physical health problems/injuries, seeing a physical or mental health provider, hospitalizations, or any other major problems/concerns. At the end of the experimental visits, they were asked if they experienced any of the side effects of tDCS included on a 10-item list. The PI reviewed each AE during weekly study meetings to discuss relatedness to the study, severity, and corrective actions.
Musculoskeletal and connective tissue disorders
Neck Pain
14.3%
3/21 • From enrollment (virtual consent) until final study visit (Day 2)
At the start of the experimental visits, participants were asked about any major physical health problems/injuries, seeing a physical or mental health provider, hospitalizations, or any other major problems/concerns. At the end of the experimental visits, they were asked if they experienced any of the side effects of tDCS included on a 10-item list. The PI reviewed each AE during weekly study meetings to discuss relatedness to the study, severity, and corrective actions.
13.6%
3/22 • From enrollment (virtual consent) until final study visit (Day 2)
At the start of the experimental visits, participants were asked about any major physical health problems/injuries, seeing a physical or mental health provider, hospitalizations, or any other major problems/concerns. At the end of the experimental visits, they were asked if they experienced any of the side effects of tDCS included on a 10-item list. The PI reviewed each AE during weekly study meetings to discuss relatedness to the study, severity, and corrective actions.
4.8%
1/21 • From enrollment (virtual consent) until final study visit (Day 2)
At the start of the experimental visits, participants were asked about any major physical health problems/injuries, seeing a physical or mental health provider, hospitalizations, or any other major problems/concerns. At the end of the experimental visits, they were asked if they experienced any of the side effects of tDCS included on a 10-item list. The PI reviewed each AE during weekly study meetings to discuss relatedness to the study, severity, and corrective actions.
4.5%
1/22 • From enrollment (virtual consent) until final study visit (Day 2)
At the start of the experimental visits, participants were asked about any major physical health problems/injuries, seeing a physical or mental health provider, hospitalizations, or any other major problems/concerns. At the end of the experimental visits, they were asked if they experienced any of the side effects of tDCS included on a 10-item list. The PI reviewed each AE during weekly study meetings to discuss relatedness to the study, severity, and corrective actions.
Nervous system disorders
Headache
14.3%
3/21 • From enrollment (virtual consent) until final study visit (Day 2)
At the start of the experimental visits, participants were asked about any major physical health problems/injuries, seeing a physical or mental health provider, hospitalizations, or any other major problems/concerns. At the end of the experimental visits, they were asked if they experienced any of the side effects of tDCS included on a 10-item list. The PI reviewed each AE during weekly study meetings to discuss relatedness to the study, severity, and corrective actions.
31.8%
7/22 • From enrollment (virtual consent) until final study visit (Day 2)
At the start of the experimental visits, participants were asked about any major physical health problems/injuries, seeing a physical or mental health provider, hospitalizations, or any other major problems/concerns. At the end of the experimental visits, they were asked if they experienced any of the side effects of tDCS included on a 10-item list. The PI reviewed each AE during weekly study meetings to discuss relatedness to the study, severity, and corrective actions.
33.3%
7/21 • From enrollment (virtual consent) until final study visit (Day 2)
At the start of the experimental visits, participants were asked about any major physical health problems/injuries, seeing a physical or mental health provider, hospitalizations, or any other major problems/concerns. At the end of the experimental visits, they were asked if they experienced any of the side effects of tDCS included on a 10-item list. The PI reviewed each AE during weekly study meetings to discuss relatedness to the study, severity, and corrective actions.
22.7%
5/22 • From enrollment (virtual consent) until final study visit (Day 2)
At the start of the experimental visits, participants were asked about any major physical health problems/injuries, seeing a physical or mental health provider, hospitalizations, or any other major problems/concerns. At the end of the experimental visits, they were asked if they experienced any of the side effects of tDCS included on a 10-item list. The PI reviewed each AE during weekly study meetings to discuss relatedness to the study, severity, and corrective actions.
Nervous system disorders
Restlessness/Difficulty Concentrating
57.1%
12/21 • From enrollment (virtual consent) until final study visit (Day 2)
At the start of the experimental visits, participants were asked about any major physical health problems/injuries, seeing a physical or mental health provider, hospitalizations, or any other major problems/concerns. At the end of the experimental visits, they were asked if they experienced any of the side effects of tDCS included on a 10-item list. The PI reviewed each AE during weekly study meetings to discuss relatedness to the study, severity, and corrective actions.
36.4%
8/22 • From enrollment (virtual consent) until final study visit (Day 2)
At the start of the experimental visits, participants were asked about any major physical health problems/injuries, seeing a physical or mental health provider, hospitalizations, or any other major problems/concerns. At the end of the experimental visits, they were asked if they experienced any of the side effects of tDCS included on a 10-item list. The PI reviewed each AE during weekly study meetings to discuss relatedness to the study, severity, and corrective actions.
38.1%
8/21 • From enrollment (virtual consent) until final study visit (Day 2)
At the start of the experimental visits, participants were asked about any major physical health problems/injuries, seeing a physical or mental health provider, hospitalizations, or any other major problems/concerns. At the end of the experimental visits, they were asked if they experienced any of the side effects of tDCS included on a 10-item list. The PI reviewed each AE during weekly study meetings to discuss relatedness to the study, severity, and corrective actions.
27.3%
6/22 • From enrollment (virtual consent) until final study visit (Day 2)
At the start of the experimental visits, participants were asked about any major physical health problems/injuries, seeing a physical or mental health provider, hospitalizations, or any other major problems/concerns. At the end of the experimental visits, they were asked if they experienced any of the side effects of tDCS included on a 10-item list. The PI reviewed each AE during weekly study meetings to discuss relatedness to the study, severity, and corrective actions.
Skin and subcutaneous tissue disorders
Redness/Irritation
9.5%
2/21 • From enrollment (virtual consent) until final study visit (Day 2)
At the start of the experimental visits, participants were asked about any major physical health problems/injuries, seeing a physical or mental health provider, hospitalizations, or any other major problems/concerns. At the end of the experimental visits, they were asked if they experienced any of the side effects of tDCS included on a 10-item list. The PI reviewed each AE during weekly study meetings to discuss relatedness to the study, severity, and corrective actions.
22.7%
5/22 • From enrollment (virtual consent) until final study visit (Day 2)
At the start of the experimental visits, participants were asked about any major physical health problems/injuries, seeing a physical or mental health provider, hospitalizations, or any other major problems/concerns. At the end of the experimental visits, they were asked if they experienced any of the side effects of tDCS included on a 10-item list. The PI reviewed each AE during weekly study meetings to discuss relatedness to the study, severity, and corrective actions.
14.3%
3/21 • From enrollment (virtual consent) until final study visit (Day 2)
At the start of the experimental visits, participants were asked about any major physical health problems/injuries, seeing a physical or mental health provider, hospitalizations, or any other major problems/concerns. At the end of the experimental visits, they were asked if they experienced any of the side effects of tDCS included on a 10-item list. The PI reviewed each AE during weekly study meetings to discuss relatedness to the study, severity, and corrective actions.
4.5%
1/22 • From enrollment (virtual consent) until final study visit (Day 2)
At the start of the experimental visits, participants were asked about any major physical health problems/injuries, seeing a physical or mental health provider, hospitalizations, or any other major problems/concerns. At the end of the experimental visits, they were asked if they experienced any of the side effects of tDCS included on a 10-item list. The PI reviewed each AE during weekly study meetings to discuss relatedness to the study, severity, and corrective actions.
Skin and subcutaneous tissue disorders
Scalp Pain
38.1%
8/21 • From enrollment (virtual consent) until final study visit (Day 2)
At the start of the experimental visits, participants were asked about any major physical health problems/injuries, seeing a physical or mental health provider, hospitalizations, or any other major problems/concerns. At the end of the experimental visits, they were asked if they experienced any of the side effects of tDCS included on a 10-item list. The PI reviewed each AE during weekly study meetings to discuss relatedness to the study, severity, and corrective actions.
18.2%
4/22 • From enrollment (virtual consent) until final study visit (Day 2)
At the start of the experimental visits, participants were asked about any major physical health problems/injuries, seeing a physical or mental health provider, hospitalizations, or any other major problems/concerns. At the end of the experimental visits, they were asked if they experienced any of the side effects of tDCS included on a 10-item list. The PI reviewed each AE during weekly study meetings to discuss relatedness to the study, severity, and corrective actions.
33.3%
7/21 • From enrollment (virtual consent) until final study visit (Day 2)
At the start of the experimental visits, participants were asked about any major physical health problems/injuries, seeing a physical or mental health provider, hospitalizations, or any other major problems/concerns. At the end of the experimental visits, they were asked if they experienced any of the side effects of tDCS included on a 10-item list. The PI reviewed each AE during weekly study meetings to discuss relatedness to the study, severity, and corrective actions.
54.5%
12/22 • From enrollment (virtual consent) until final study visit (Day 2)
At the start of the experimental visits, participants were asked about any major physical health problems/injuries, seeing a physical or mental health provider, hospitalizations, or any other major problems/concerns. At the end of the experimental visits, they were asked if they experienced any of the side effects of tDCS included on a 10-item list. The PI reviewed each AE during weekly study meetings to discuss relatedness to the study, severity, and corrective actions.
Skin and subcutaneous tissue disorders
Tingling/Burning/Itching Sensation
95.2%
20/21 • From enrollment (virtual consent) until final study visit (Day 2)
At the start of the experimental visits, participants were asked about any major physical health problems/injuries, seeing a physical or mental health provider, hospitalizations, or any other major problems/concerns. At the end of the experimental visits, they were asked if they experienced any of the side effects of tDCS included on a 10-item list. The PI reviewed each AE during weekly study meetings to discuss relatedness to the study, severity, and corrective actions.
77.3%
17/22 • From enrollment (virtual consent) until final study visit (Day 2)
At the start of the experimental visits, participants were asked about any major physical health problems/injuries, seeing a physical or mental health provider, hospitalizations, or any other major problems/concerns. At the end of the experimental visits, they were asked if they experienced any of the side effects of tDCS included on a 10-item list. The PI reviewed each AE during weekly study meetings to discuss relatedness to the study, severity, and corrective actions.
90.5%
19/21 • From enrollment (virtual consent) until final study visit (Day 2)
At the start of the experimental visits, participants were asked about any major physical health problems/injuries, seeing a physical or mental health provider, hospitalizations, or any other major problems/concerns. At the end of the experimental visits, they were asked if they experienced any of the side effects of tDCS included on a 10-item list. The PI reviewed each AE during weekly study meetings to discuss relatedness to the study, severity, and corrective actions.
81.8%
18/22 • From enrollment (virtual consent) until final study visit (Day 2)
At the start of the experimental visits, participants were asked about any major physical health problems/injuries, seeing a physical or mental health provider, hospitalizations, or any other major problems/concerns. At the end of the experimental visits, they were asked if they experienced any of the side effects of tDCS included on a 10-item list. The PI reviewed each AE during weekly study meetings to discuss relatedness to the study, severity, and corrective actions.
Musculoskeletal and connective tissue disorders
Muscle Soreness
4.8%
1/21 • From enrollment (virtual consent) until final study visit (Day 2)
At the start of the experimental visits, participants were asked about any major physical health problems/injuries, seeing a physical or mental health provider, hospitalizations, or any other major problems/concerns. At the end of the experimental visits, they were asked if they experienced any of the side effects of tDCS included on a 10-item list. The PI reviewed each AE during weekly study meetings to discuss relatedness to the study, severity, and corrective actions.
9.1%
2/22 • From enrollment (virtual consent) until final study visit (Day 2)
At the start of the experimental visits, participants were asked about any major physical health problems/injuries, seeing a physical or mental health provider, hospitalizations, or any other major problems/concerns. At the end of the experimental visits, they were asked if they experienced any of the side effects of tDCS included on a 10-item list. The PI reviewed each AE during weekly study meetings to discuss relatedness to the study, severity, and corrective actions.
4.8%
1/21 • From enrollment (virtual consent) until final study visit (Day 2)
At the start of the experimental visits, participants were asked about any major physical health problems/injuries, seeing a physical or mental health provider, hospitalizations, or any other major problems/concerns. At the end of the experimental visits, they were asked if they experienced any of the side effects of tDCS included on a 10-item list. The PI reviewed each AE during weekly study meetings to discuss relatedness to the study, severity, and corrective actions.
0.00%
0/22 • From enrollment (virtual consent) until final study visit (Day 2)
At the start of the experimental visits, participants were asked about any major physical health problems/injuries, seeing a physical or mental health provider, hospitalizations, or any other major problems/concerns. At the end of the experimental visits, they were asked if they experienced any of the side effects of tDCS included on a 10-item list. The PI reviewed each AE during weekly study meetings to discuss relatedness to the study, severity, and corrective actions.
Psychiatric disorders
Increased Anxiety
4.8%
1/21 • From enrollment (virtual consent) until final study visit (Day 2)
At the start of the experimental visits, participants were asked about any major physical health problems/injuries, seeing a physical or mental health provider, hospitalizations, or any other major problems/concerns. At the end of the experimental visits, they were asked if they experienced any of the side effects of tDCS included on a 10-item list. The PI reviewed each AE during weekly study meetings to discuss relatedness to the study, severity, and corrective actions.
9.1%
2/22 • From enrollment (virtual consent) until final study visit (Day 2)
At the start of the experimental visits, participants were asked about any major physical health problems/injuries, seeing a physical or mental health provider, hospitalizations, or any other major problems/concerns. At the end of the experimental visits, they were asked if they experienced any of the side effects of tDCS included on a 10-item list. The PI reviewed each AE during weekly study meetings to discuss relatedness to the study, severity, and corrective actions.
9.5%
2/21 • From enrollment (virtual consent) until final study visit (Day 2)
At the start of the experimental visits, participants were asked about any major physical health problems/injuries, seeing a physical or mental health provider, hospitalizations, or any other major problems/concerns. At the end of the experimental visits, they were asked if they experienced any of the side effects of tDCS included on a 10-item list. The PI reviewed each AE during weekly study meetings to discuss relatedness to the study, severity, and corrective actions.
13.6%
3/22 • From enrollment (virtual consent) until final study visit (Day 2)
At the start of the experimental visits, participants were asked about any major physical health problems/injuries, seeing a physical or mental health provider, hospitalizations, or any other major problems/concerns. At the end of the experimental visits, they were asked if they experienced any of the side effects of tDCS included on a 10-item list. The PI reviewed each AE during weekly study meetings to discuss relatedness to the study, severity, and corrective actions.

Additional Information

Joan Camprodon, MD, MPH

Massachusetts General Hospital

Phone: 617-726-5340

Results disclosure agreements

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