Understanding what triggers identity shifts in dissociative identity disorder
Official title: EXPLOration Des Processus à l'Origine du Trouble Dissociatif de l'Identité (TDI)(EXPLOTDI)
Run by Lille University · NCT07663890 · Data updated 2026-11-12
This study tests how and why identity state changes occur in people with DID or those who simulate it to see what triggers, thoughts, and consequences of these episodes.
Quick facts
| Study type | Observational |
|---|---|
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 60 (estimated) |
| Sponsor | Lille University Academic / other |
| Locations | 4 sites (Carvin and 3 other locations) |
| Status | Recruiting |
| Started | June 4, 2026 |
| Main results expected | June 30, 2026 |
| Study ends | June 30, 2028 |
| Registry record updated | June 26, 2026 |
| Trial ID | NCT07663890 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults (18+) currently in therapy for DID or presenting simulated DID symptoms, able to participate in interviews.
✕Probably not a fit
Results may not directly benefit all participants if no clear patterns emerge.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
Researchers will conduct interviews with about 60 adults, including 30 with DID and 30 who simulate symptoms, across multiple centers. Participants will complete questionnaires measuring dissociation, dissociative beliefs, knowledge about dissociation, and trauma symptoms, followed by semi-structured interviews. The team will use thematic analysis to identify patterns of triggers, cognitions, emotions, behaviors, and short- and long-term effects, with the aim of generating hypotheses for future quantitative research.
Why it matters
Potential benefit: Findings could improve understanding of what drives dissociative episodes and inform future therapeutic approaches.
How similar studies have gone: Prior research on DID mechanisms is debated; this exploratory study seeks to clarify functional patterns in episodes.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Individuals who report having Dissociative Identity Disorder (DID) * At least 18 years old * Currently receiving treatment from a therapist (psychologist or psychiatrist) Exclusion Criteria: * Individuals under guardianship or court-ordered protection
Where it's running
-
Sophie Marek's Practice
Carvin, France Recruiting -
Online Consultation Cabinet
Chambray-lès-Tours, France Recruiting -
Online Consultation Cabinet - Alexis VANCAPPEL,
Lille, France Recruiting -
Centre Régional du Psychotraumatisme
Tours, France Recruiting
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.