ClinicalTrials.gg
RecruitingNCT07767396Updated Oct 15, 2026

Eye Movement Intervention With Different Memory Reactivation Procedures for Intrusive Traumatic Memories

An interventional study of Unconscious Trauma Reactivation plus Eye Movements and Active Trauma Memory Reactivation plus Eye Movements in Post-traumatic Stress Disorder (PTSD) and Intrusive Memories of Traumatic Event(s), sponsored by Shaanxi Normal University. Recruiting at 1 site in China. Open to participants aged 18 Years to 50 Years. Per ClinicalTrials.gov, last updated 2026-10-15.

Sponsored by Shaanxi Normal University · Not applicable, Interventional, and Treatment

Updated Oct 15, 2026Now RecruitingFirst site in China+2 moreGo to Updates ↓
Phase
Not applicable
Study type
Interventional
Enrollment
117
Allocation
Randomized
Ages
18 Years to 50 Years
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-12

Among 28 studies in Stress Disorders, Post-Traumatic with a site in China — 15 open to participants now, 18 under way, none of them phase 3. Stress Disorders, Post-Traumatic · China.

Planned enrollment
12th of 22
117 · median 119
Started
2026
with 6 others
No phase
22 of 28
13 open now
Primary completion
2028-09
later than 17 of 17 live
Registered
27th of 28
by date
Lead sponsor
2 of 28
Shaanxi Normal University

Among the 28 studies in Stress Disorders, Post-Traumatic with a site in China, this one is the 12th largest by planned enrollment of the 22 interventional ones that give a count, is one of 7 that started in 2026, is one of 22 with no phase, reaches primary completion later than 17 of the 17 other live ones, and was the 27th registered.

Stress Disorders, Post-Traumatic

2,682 studies on the registry are indexed under Stress Disorders, Post-Traumatic; 601 are open to participants now.

This study's planned enrollment of 117 is above the median of 69 across 2,196 interventional studies indexed under Stress Disorders, Post-Traumatic.

Browse Stress Disorders, Post-Traumatic studies →

Open to participants now

15 of the 28 studies in Stress Disorders, Post-Traumatic with a site in China are open now, in 1 country. Each count lists the studies.

All 15 open studies →

Where they have run

Who these studies take

Of the 417 Stress Disorders, Post-Traumatic studies recruiting now, 186 (45%) set no upper age limit and 205 (49%) stop at 75 or younger; 63 take children under 18; 89 take healthy volunteers.

This study: 18 Years to 50 Years · all sexes · no healthy volunteers.

The full table on the hub →
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02

Study summary

Post-Traumatic Stress Disorder (PTSD) and trauma-related symptoms are often characterized by recurrent intrusive memories that cause distress and interfere with daily functioning. Although trauma-focused interventions such as Eye Movement Desensitization and Reprocessing (EMDR) may be effective, they often involve engagement with trauma-related memories, which can be distressing for some individuals and may affect treatment acceptability. This randomized controlled trial will evaluate a standardized eye-movement-based procedure for trauma-exposed individuals experiencing recurrent intrusive memories. Participants will be randomly assigned to one of several memory-related task conditions involving eye movements. The study will assess the frequency and distress of trauma-related intrusive memories at prespecified assessment points, as well as PTSD symptoms, intervention-related distress, acceptability, and safety. Findings from this trial may help inform the development of tolerable approaches for targeting trauma-related intrusive memories.

Read the detailed description
  1. This study will be conducted on an online platform, which will be used for data collection, task management, and recording of experimental results.
  2. Participants randomized to the Active Trauma Recall + Eye Movements condition who explicitly indicate, after receiving a detailed explanation and before initiating the active trauma recall procedure, that they are unable or unwilling to proceed will be recorded as having discontinued the assigned RCT intervention/procedure. The timing and reason for discontinuation will be documented. These participants will not be re-randomized or reassigned to another RCT condition, and their available data will be handled according to the pre-specified analysis population and missing-data procedures of the main RCT.

Any optional exploratory follow-up conducted after discontinuation will be independent of the main RCT and will be used only to collect descriptive feasibility, safety, and acceptability information. Data from such follow-up will not be included in the primary or secondary efficacy analyses of the main RCT and, if reported, will be presented separately from the RCT outcomes.

03

Conditions studied

  • Post-traumatic Stress Disorder (PTSD)
  • Intrusive Memories of Traumatic Event(s)
04

Who can participate

Ages eligible
18 Years to 50 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Meet PTSD Criterion A, such as exposure to actual or threatened death, serious injury, or sexual violence; have experienced one or more traumatic events.
  2. Experienced five or more trauma-related intrusive memories during the baseline week.
  3. Have internet access and access to a personal computer suitable for completing the online study tasks.
  4. Have normal or corrected-to-normal vision and be able to complete computerized visual and eye movement tasks.
  5. Be willing to provide , able to complete study procedures, and able to be contacted by the study team.

Exclusion criteria

Exclusion Criteria:

  1. Have fewer than five trauma-related intrusive memories during the baseline week.
  2. Have a current or past psychotic disorder, current manic episode, severe obsessive-compulsive disorder, severe personality disorder, or another severe psychiatric condition judged to interfere with study participation, adherence, or safety.
  3. Have current acute suicidal ideation or behavior, significant risk of harm to self or others, or any condition requiring urgent clinical intervention.
  4. Have current severe substance use disorder or severe substance dependence judged to interfere with study participation or safety.
  5. Have a current organic disorder, neurological condition, history of epilepsy or seizures, significant brain injury, or other medical condition judged to interfere with safe participation or completion of the computerized visual or eye movement tasks.
  6. Have visual impairment or other condition that prevents completion of the computerized visual or eye movement tasks.
  7. Current participation in another intervention study or current treatment judged by the research team to interfere with study participation, safety, or outcome assessment.
Terms in these criteria, in plain language(2)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

DSM diagnostic criteria

The American Psychiatric Association’s manual of mental health diagnoses. DSM-5 (2013, revised as DSM-5-TR in 2022) replaced DSM-IV, and some studies still name the older edition. “Meets DSM criteria for …” means diagnosed by that edition’s diagnostic criteria, usually by a clinician in an interview.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Outcomes assessor)
Enrollment
117 participants (estimated)

Study arms

  • Experimental
    Unconscious Trauma-Related Visual Processing plus Eye Movements

    Participants in this arm will complete a standardized procedure of trauma-related visual cues together with eye movements. The procedure is intended to minimize conscious awareness of the trauma-related cues.

    Behavioral: Unconscious Trauma Reactivation plus Eye Movements

  • Active comparator
    Active Trauma Recall plus Eye Movements

    Participants in this arm will complete a standardized EMDR-informed procedure involving active recall of a trauma-related memory together with eye movements.

    Behavioral: Active Trauma Memory Reactivation plus Eye Movements

  • Sham comparator
    Neutral Memory Reactivation plus Eye Movements

    Participants in this arm will complete a standardized neutral memory recall procedure together with eye movements. The neutral material will be unrelated to the participant's traumatic experience or intrusive memories.

    Behavioral: Neutral Memory Reactivation plus Eye Movements

Interventions

  • BehavioralUnconscious Trauma Reactivation plus Eye Movements

    Participants will complete a procedure involving unconscious activation combined with eye movements.

  • BehavioralActive Trauma Memory Reactivation plus Eye Movements

    Participants will complete a standardized procedure involving recall of a trauma-related memory combined with eye movements.

  • BehavioralNeutral Memory Reactivation plus Eye Movements

    Participants will complete a standardized procedure involving recall of a neutral memory combined with eye movements.

06

What researchers measure

Primary outcomes

  1. Number of trauma-related intrusive memories

    Total number of trauma-related intrusive memories recorded in a daily diary over the 7-day assessment period.

    Time frame: Day 66 - 72(all arms) controlling for baseline week

Secondary outcomes

  1. Number of trauma-related intrusive memories

    Number of trauma-related intrusive memories assessed via a daily diary.

    Time frame: Day 18 - 24 , Day 42 - 48(all arms) controlling for baseline week

  2. Intrusive memory ratings

    This 7-item questionnaire assesses a number of intrusive memory characteristics. These characteristics include: frequency (7-point categorical response from 'never' to 'many times a day'); distress (0=not at all to 10=extremely); disruption to concentration (0=not at all to 10=extremely); interference with what you were doing (how much (0=not at all to 10=extremely) and for how long (6-point categorical response from '\<1min' to '\>60mins')); impact on work functioning (0=not at all to 10=extremely); impact on functioning in other areas of life (0=not at all to 10=extremely).

    Time frame: Baseline(day 0), day 24, day 48, day 72, 2 months after the last intervention(all arms)

  3. Post-Intervention Questionnaire

    A 3-item questionnaire assessed participants' immediate subjective experience after each intervention session: distress and aversion experienced during the procedure (0=not at all to 10=very); acceptability of the intervention task (0=not at all to 10=very).

    Time frame: Day1, 9, 17, 25, 33, 41, 49, 57, 65 (all arms)

  4. PTSD Checklist for DSM-5 (PCL-5)

    This 20-item measure assesses symptoms of PTSD over the last month. Each of the 20 items is rated on a 5-point Likert scale ranging from 0 (Not at all) to 4 (Extremely). The total score ranges from 0 to 80.

    Time frame: Baseline(day 0), day25, day49, day73, 2 months after the last intervention(all arms)

  5. Clinician-Administered PTSD Scale for DSM-5 (CAPS-5)

    Change in PTSD symptom severity as measured by the Clinician-Administered PTSD Scale for DSM-5 (CAPS-5). The CAPS-5 is a structured clinical interview assessing DSM-5 PTSD symptoms. Each of the 20 PTSD symptom items is rated on a severity scale from 0 to 4. The total symptom severity score is calculated by summing the severity ratings for the 20 PTSD symptom items, yielding a total score range from 0 to 80. Higher scores indicate greater PTSD symptom severity. PTSD diagnostic status is determined according to DSM-5 symptom cluster criteria and is not based solely on the total severity score.

    Time frame: Baseline (day 0) and day 73 (all arms)

  6. Impact of Event Scale-Revised (IES-R)

    This 22-item self-report measure subjective distress caused by traumatic events during the past seven days. It assesses three domains of post-traumatic stress: intrusion, avoidance, and hyperarousal. Each of the 22 items is rated on a 5-point scale according to symptom severity: 0 (Not at all) to 4 (Extremely). The total score is calculated by summing the scores of all 22 items, yielding a total score range from 0 to 88.

    Time frame: Baseline(day 0), day25, day49, day73, 2 months after the last intervention(all arms)

  7. Beck Depression Inventory-II (BDI-II)

    The Beck Depression Inventory-II (BDI-II) is a 21-item self-report instrument used to assess the existence and severity of depressive symptoms, covering emotional (e.g., sadness, hopelessness), cognitive (e.g., self-reproach, worthlessness), somatic (e.g., fatigue, appetite loss), and behavioral (e.g., loss of interest, social withdrawal) dimensions. Each of the 21 items consists of four statements describing increasing levels of severity, rated on a 4-point scale ranging from 0 (not present) to 3 (severe). The total score is calculated by summing the scores of all 21 items, with a total score range from 0 to 63. Higher scores indicate more severe depressive symptoms.

    Time frame: Baseline(day 0), day25, day49, day73, 2 months after the last intervention(all arms)

  8. State-Trait Anxiety Inventory-State version (STAI-S)

    The State Anxiety subscale of the State-Trait Anxiety Inventory (STAI-Form Y-I, S-AI) comprises items 1 to 20 of the inventory. Half of the items describe negative emotions and the other half describe positive emotions. It is designed to evaluate immediate or recent situational experiences of fear, tension, worry, and nervousness, making it particularly useful for assessing state anxiety under stressful conditions. Each of the 20 items is rated on a 4-point scale: 1 (not at all), 2 (somewhat), 3 (moderately so), and 4 (very much so). The total score is calculated by summing the 20 items, yielding a total score range from 20 to 80. Higher scores reflect a greater severity of the subject's current state anxiety symptoms.

    Time frame: Baseline(day 0), day25, day49, day73, 2 months after the last intervention(all arms)

  9. Work and Social Adjustment Scale (WSAS)

    The WSAS is a 5-item self-report scale designed to measure the degree of functional impairment in day-to-day activities (work, home management, social leisure, private leisure, and close relationships). Each of the 5 items is rated on a 9-point scale ranging from 0 (Not at all impaired) to 8 (Very severely impaired). The total score is calculated by summing the scores of all 5 items, yielding a total score range from 0 to 40. Lower scores indicate better functioning, while higher scores indicate greater functional impairment. Clinical thresholds are: below 10 (subclinical), 10 to 20 (significant functional impairment), and above 20 (moderately severe or worse psychopathology).

    Time frame: Baseline(day 0), day25, day49, day73, 2 months after the last intervention(all arms)

Other outcomes

  1. Changes to health

    This 4-item questionnaire assesses the number of any new traumatic events, new treatments received and the occurrence of adverse events since the last assessment.

    Time frame: Day73 and 2 months after the last intervention(all arms)

  2. Feedback questionnaire

    A 5-item questionnaire (0=not at all to 10=very) assessed participants' subjective experience of the intervention: ease of use; perceived helpfulness; willingness to use the intervention if intrusive memories recur in the future; willingness to recommend the intervention to others with similar intrusive memories; whether they perceived the task as related to their condition during the experiment.

    Time frame: Day65 (all arms)

  3. Number of trauma-related intrusive memories

    Number of trauma-related intrusive memories assessed via a single item .

    Time frame: 2 months after the last intervention (all arms)

  4. Subliminal Perception Check

    Administered only to the unconscious trauma cue group. Following each intervention session, participants will be asked whether they perceived any image using a single-item binary choice (Yes/No). If the response is "Yes," participants will be asked to provide an open-ended description.

    Time frame: Day1, 9, 17, 25, 33, 41, 49, 57, 65 (the Unconscious Reactivation group only)

07

Study locations

1 of 1 sites recruiting
08

References and documents

Individual participant data

Plan to share: Yes

Supporting information: Study protocol, Statistical analysis plan, Analytic code

No publications or documents are linked to this record.

09

Timeline

1 registry update since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedDate before it movedWhere the date was before it movedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Start is estimated for Oct 2026; primary completion for Sep 2028, 22 months later.

Of 1,064 non-industry interventional studies with no phase under Stress Disorders, Post-Traumatic, half reached primary completion within 35 months of starting (the median), counting those still running; a quarter within 17 and three quarters within 53. This study's planned 22 months is below that.

Counting every sponsor, half of 1,092 studies reached it within 34 months; a quarter within 17 and three quarters within 53.

Start moved once since we started tracking on Sep 25, 2026: Aug 2026 → Oct 2026, on Oct 15, 2026.

Earlier changes are on the record history on ClinicalTrials.gov ↗

How these figures are worked out, and which studies are left out of them.

Registered
Aug 11, 2026
First posted
Aug 17, 2026
StartEst.
Oct 30, 2026was Aug 2026
Primary completionEst.
Sep 15, 2028
CompletionEst.
Dec 15, 2028
Last update
Oct 15, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
Status
Not yet recruiting→Recruiting
changed Oct 15, 2026
Sites
1 site added — first site in China
Show site
  • School of Psychology, Shaanxi Normal University · Xi'an, China
Oct 15, 2026
Start date
Aug 15, 2026→Oct 30, 2026
Oct 15, 2026
Secondary outcomes
2 description edited
What changed in the outcomes
  • DescriptionPost-Intervention Questionnaire: how it is measured was reworded
  • Descriptionother outcomeNumber of trauma-related intrusive memories: how it is measured was reworded
Oct 15, 2026
Show all 1 update
  1. Oct 15, 2026
    Not yet recruiting→Recruiting
    1 site added — first site in China
    Show site
    • School of Psychology, Shaanxi Normal University · Xi'an, China
    Start date Aug 15, 2026→Oct 30, 2026
    Secondary outcomes 2 description edited
    What changed in the outcomes
    • DescriptionPost-Intervention Questionnaire: how it is measured was reworded
    • Descriptionother outcomeNumber of trauma-related intrusive memories: how it is measured was reworded
    + 1 other change: verification date

From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗

10

Registry details

Key details

Study ID
NCT07767396
Lead sponsor
Shaanxi Normal University
Responsible party
Zhu Zijian (Associate Professor, Shaanxi Normal University) — Principal investigator
First posted
Aug 17, 2026
Start date
Oct 30, 2026 (estimated)
Primary completion
Sep 15, 2028 (estimated)
Completion
Dec 15, 2028 (estimated)
Last update
Oct 15, 2026

Study contacts

Zhu Zijian
Contact
zhuzijian0203@snnu.edu.cn
+86 13572494696

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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