NCT07116109

Brief Summary

The purpose of this study is to examine comparative effectiveness of two home-based telemedicine delivered interventions: transcranial Direct Current Stimulation (tDCS) combined with Massed Prolonged Exposure (Massed-PE) vs. Sham tDCS combined with Massed PE, focusing on pain and PTSD outcomes, to determine the comparative effectiveness of the two interventions on process outcomes of patient satisfaction, treatment attrition, and treatment compliance and to explore changes in blood biomarkers associated with stress and inflammatory processes related to pain and PTSD symptom improvements following treatment.

Trial Health

77
On Track

Trial Health Score

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

Enrollment
146

participants targeted

Target at P75+ for not_applicable chronic-pain

Timeline
37mo left

Started Jul 2025

Longer than P75 for not_applicable chronic-pain

Geographic Reach
1 country

2 active sites

Status
recruiting

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

Study Progress24%
Jul 2025Jun 2029

Study Start

First participant enrolled

July 1, 2025

Completed
1 month until next milestone

First Submitted

Initial submission to the registry

August 4, 2025

Completed
7 days until next milestone

First Posted

Study publicly available on registry

August 11, 2025

Completed
3.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 30, 2029

Expected
5 months until next milestone

Study Completion

Last participant's last visit for all outcomes

June 30, 2029

Last Updated

March 27, 2026

Status Verified

March 1, 2026

Enrollment Period

3.6 years

First QC Date

August 4, 2025

Last Update Submit

March 23, 2026

Conditions

Keywords

PTSDtranscranial Direct Current Stimulation (tDCS)Traumatic Brain Injury (TBI)

Outcome Measures

Primary Outcomes (2)

  • Change in pain intensity as measured by the Defense and Veterans Pain Rating Scale (DVPRS)

    The DVPRS is a validated 11-point numeric rating scale and is scored from 0(no pain at all) to 10(worst pain ever possible), higher scores indicate greater pain severity.

    Baseline, midpoint(before session 6), post treatment (after session 10) 3 months, 6 months

  • Change in PTSD symptoms as assessed by the Clinician-Administered PTSD Scale 5 (CAPS-5)

    The CAPS-5 is a 30-item structured clinical interview used to assess the presence and severity of Posttraumatic Stress Disorder (PTSD) symptoms according to Diagnostic and Statistical Manual of Mental Disorders(DSM-5)diagnostic criteria. The scale includes 20 core PTSD symptom items rated on a 5-point scale (0-4) for both frequency and intensity. Each item receives a severity score ranging from 0 (absent) to 4 (extreme/incapacitating), for a total score range of 0 to 80. Higher scores indicate greater PTSD symptom severity.

    Baseline, post treatment (after session 10) 3 months, 6 months

Secondary Outcomes (7)

  • Change in pain intensity as assessed by the Patient-Reported Outcomes Measurement Information System (PROMIS) Pain 3a Intensity Scale

    Baseline, midpoint(before session 6), post treatment (after session 10) 3 months, 6 months

  • Change in pain interference as assessed by the PROMIS Pain 8a Interference Scale

    Baseline, midpoint(before session 6), post treatment (after session 10) 3 months, 6 months

  • Change in symptoms of Post-Traumatic Stress Disorder (PTSD)as assessed by the PTSD Checklist-5 Civilian (PCL-5)

    Baseline, midpoint(before session 6), post treatment (after session 10) 3 months, 6 months

  • Change in Quality of life as assessed by the World Health Organization Quality of Life - Short Form (WHOQOL-BREF)

    Baseline, midpoint(before session 6), post treatment (after session 10) 3 months, 6 months

  • Change in anxiety as assessed by the Generalized Anxiety Disorder Scale 7 (GAD-7)

    Baseline,post treatment (after session 10) 3 months, 6 months

  • +2 more secondary outcomes

Study Arms (2)

Transcranial Direct Current Stimulation (tDCS) and Massed-Prolonged Exposure (PE)

EXPERIMENTAL
Device: Transcranial Direct Current Stimulation (tDCS)Behavioral: Massed-Prolonged Exposure (PE)

Sham Transcranial Direct Current Stimulation (tDCS) and Massed-Prolonged Exposure (PE)

SHAM COMPARATOR
Behavioral: Massed-Prolonged Exposure (PE)Device: Sham Transcranial Direct Current Stimulation (tDCS)

Interventions

A constant current intensity of 2 Ma electrical current will be administered for 20 min per session/ 10 sessions total daily for 2 weeks (Monday to Friday)using the headgear M1-SO montage placement.

Transcranial Direct Current Stimulation (tDCS) and Massed-Prolonged Exposure (PE)

PE will include a) psychoeducation about the common reactions to traumatic events and presentation of the treatment rationale (sessions 1 and 2), b) repeated in vivo exposure to traumatic stimuli (in vivo exercises are assigned as homework during sessions 3 through 10), c) repeated, prolonged, imaginal exposure to traumatic memories (sessions 3 through 10). All sessions will be delivered via telehealth.

Sham Transcranial Direct Current Stimulation (tDCS) and Massed-Prolonged Exposure (PE)Transcranial Direct Current Stimulation (tDCS) and Massed-Prolonged Exposure (PE)

Sham tDCS delivers an active stimulation of 2 Ma electrical current) for a few seconds to mimic the sensations of active tDCS

Sham Transcranial Direct Current Stimulation (tDCS) and Massed-Prolonged Exposure (PE)

Eligibility Criteria

Age21 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Presence of musculoskeletal, chronic, non-cancer pain with a rating of ≥ 3 out of 10 on a 0-10 on the Defense and Veterans Pain Rating Scale (DVPRS) and a pain intensity and interference score of 1 standard deviation above PROMIS normative data (see Measures section below). Symptoms will be required to be of at least six months duration and verified diagnosis in their medical chart authorized by informed consent
  • Diagnosis of PTSD assigned on the basis of the Clinician Administered PTSD Scale (CAPS-5) and PCL-5 ≥ 30
  • willing to participate in study randomization, treatment assignment, and assessments.

You may not qualify if:

  • Having a household member who is already enrolled in the study
  • Active psychosis or dementia at screening
  • Suicidal ideation with clear intent
  • Current substance dependence
  • current opioid medication for pain and/or current use of sodium channel blockers, calcium channel blockers, or N-Methyl-D-aspartate receptor antagonists, because these medications can block tDCS effects
  • pregnancy and/or lactation
  • concurrent enrollment in another pain clinical trial
  • tDCS or medical related contraindications such as open-injury TBI (penetrating injury), seizure disorder (independently of the type of TBI or condition causing the seizure disorder), pregnancy, implanted metal, claustrophobia
  • having pain that is not chronic, presence of severe and frequent migraines, fibromyalgia, or pain caused by a primary condition such as cancer.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Charleston VA Healthcare System

Charleston, South Carolina, 29401-5799, United States

RECRUITING

The University of Texas Health Science Center at Houston

Houston, Texas, 77030, United States

ACTIVE NOT RECRUITING

MeSH Terms

Conditions

Chronic PainStress Disorders, Post-TraumaticBrain Injuries, Traumatic

Interventions

Transcranial Direct Current Stimulation

Condition Hierarchy (Ancestors)

PainNeurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and SymptomsStress Disorders, TraumaticTrauma and Stressor Related DisordersMental DisordersBrain InjuriesBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesCraniocerebral TraumaTrauma, Nervous SystemWounds and Injuries

Intervention Hierarchy (Ancestors)

Electric Stimulation TherapyTherapeuticsConvulsive TherapyPsychiatric Somatic TherapiesBehavioral Disciplines and ActivitiesElectroshockPsychological Techniques

Study Officials

  • Melba Hernandez-Tejada, PhD, DHA

    The University of Texas Health Science Center, Houston

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Melba Hernandez-Tejada, PhD, DHA

CONTACT

Stephanie Hart

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor

Study Record Dates

First Submitted

August 4, 2025

First Posted

August 11, 2025

Study Start

July 1, 2025

Primary Completion (Estimated)

January 30, 2029

Study Completion (Estimated)

June 30, 2029

Last Updated

March 27, 2026

Record last verified: 2026-03

Data Sharing

IPD Sharing
Will not share

Locations