Examining the prevalence of dissociative identity disorder in patients with childhood trauma.
Official title: Prevalence of Dissociative Identity Disorder in At-risk Outpatient Groups Reporting Childhood Trauma.
Run by Centre Psychothérapique de Nancy · NCT06330467 · Data updated 2026-11-12
This study is trying to see how common dissociative identity disorder is in people with childhood trauma who have borderline personality disorder, functional dissociative crises, or early psychosis.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 350 (estimated) |
| Sponsor | Centre Psychothérapique de Nancy Academic / other |
| Locations | 3 sites (Nancy and 2 other locations) |
| Status | Recruiting |
| Started | June 4, 2024 |
| Main results expected | August 18, 2026 |
| Study ends | August 18, 2026 |
| Registry record updated | April 24, 2026 |
| Trial ID | NCT06330467 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates include adults aged 18 and older with a history of childhood psychotrauma and specific diagnoses related to dissociative disorders.
✕Probably not a fit
Patients without a history of childhood trauma or those not fluent in French may not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This study investigates the prevalence of dissociative identity disorder (DID) among three at-risk outpatient groups: individuals with borderline personality disorder, those experiencing functional dissociative crises, and patients with early psychosis. The research aims to assess the prevalence of other dissociative disorders and complex post-traumatic stress disorder (PTSD) while exploring correlations between childhood maltreatment, trauma onset age, and dissociative disorder diagnoses. Data will be collected through psychometric assessments and semi-structured clinical interviews, involving a total of 350 participants across the specified groups.
Why it matters
Potential benefit: If successful, this study could enhance understanding and treatment of dissociative disorders in patients with a history of childhood trauma.
How similar studies have gone: While the specific approach may be novel, studies have shown that understanding the prevalence of dissociative disorders in trauma-affected populations can lead to improved diagnostic and therapeutic strategies.
Who can join: the full rules
Show full inclusion / exclusion criteria
I - Inclusion Criteria: I-1: For all groups: * Male or female * Age \> or = 18 * Enrolled in or benefiting from a social security scheme * Patient fluent in French * Patient willing to undergo a psychological evaluation between 1h30 and 3h30 * Patient with a known history of psychotrauma in childhood before the age of 18 (sexual abuse, mistreatment, school harassment, natural disasters, attacks, etc.). * Patient having received and understood complete information on the organization of the research and having given written free and informed consent prior to participation in the study. I-2 : Patients in the borderline group * Patients with main diagnosis of emotionally labile personality * Patients with at least one psychiatric hospitalization in the last 3 years I-3 : Patients in the early psychosis group Patient with a diagnosis of mental state at risk of psychosis according to the criteria defined by CAARMS (Comprehensive Assessment of At Risk Mental State) OR Patients diagnosed with a first psychotic episode on an outpatient basis or following a hospital stay I-4 : Patients in the functional dissociative crises group Patients diagnosed with functional dissociative crises by a specialized epileptologist II- Non-inclusion criteria * Impairment of the subject making it difficult or not impossible to participate in the trial or to understand the information provided to him/her * Patients with specific difficulties in understanding SCID-D questions * Psychiatric condition requiring hospitalization * Patients with symptoms of recent toxic consumption (alcohol, cannabis, other ...) disrupting assessment responses * Patient taking part in a pharmacological study involving a pro-dissociative molecule of the psychedelic type * Pregnant, parturient or nursing mothers * Person deprived of liberty by judicial or administrative decision * Person in a life-threatening emergency * An adult under legal protection (guardianship, curatorship, safeguard of justice) * Person unable to give consent and not subject to a legal protection measure
Where it's running
-
Centre Psychothérapique de Nancy - CMP Jacquard et Des Près
Nancy, France Recruiting -
CHRU Nancy - Neurology department
Nancy, France Recruiting -
Centre Psychothérapique de Nancy - CLIP
Nancy, France Not yet recruiting
Study contacts
- Principal investigator: Coraline HINGRAY — Centre Psychothérapique de Nancy
- Study coordinator: Lori PETROCELLI
- Email: petrocelli.psy@gmail.com
- Phone: +33383852377
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
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Dissociation-focused cognitive behavioral therapy for people with dissociative disorders
This program tests whether dissociation-focused cognitive behavioral therapy (DF-CBT) helps adults with dissociative disorders reduce their dissociative symptoms.
-
Understanding what triggers identity shifts in dissociative identity disorder
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.
-
Understanding the impact of mood disorders and treatment responses
This study is trying to learn more about how people with depression and bipolar disorder respond to treatment by talking to them weekly for up to 12 weeks to improve future care and predict how well medications might work.
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.