Dissociative DisordersNCT01388140
Psychopathology of Dissociative Disorders
An observational study of Dissociative Disorders, run by National Taiwan University Hospital at 1 site in Taiwan.
Trial summary
The goal of the project is to investigate the prevalence of dissociative disorders in psychiatric inpatients in Taiwan. Relevant clinical issues, including common psychiatric comorbidity (e.g., positive psychotic symptoms), associated psychosocial factors (e.g., negative life events, perceived parenting style), and… Read more about this study
- Who is it for?
- Ages 20 to 60 years
- Conditions the study is for
- Dissociative Disorders
- How many people
- 150 participants
- Where
- 1 siteTaiwan
- Study dates
- Mar 2011to Aug 2012
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 20 to 60 years
- All sexes
- No healthy volunteers
- Adult
Study population: psychiatric inpatients in a acute stage
Who may be able to join
- being stable and appropriate for interviews
Who cannot join
- with organic syndromes
- mentally retarded (FIQ <80)
- cannot communicate in Mandarin Chinese
Trial locations and contacts
1 site in 1 country.
Taiwan1 site, 1 recruiting
- Recruiting
Department of Psychiatry, National Taiwan University
Taipei
Hai-Gwo Hwu, MD, 886-2-23123456 ext. 66785, haigohwu@ntu.edu.tw
Chui-De Chiu, MS, 886-2-968-222966, d97227202@ntu.edu.tw
About this study
Official title: A Psychopathological Study of Dissociative Disorders in Psychiatric Inpatients at an Acute Stage
The goal of the project is to investigate the prevalence of dissociative disorders in psychiatric inpatients in Taiwan. Relevant clinical issues, including common psychiatric comorbidity (e.g., positive psychotic symptoms), associated psychosocial factors (e.g., negative life events, perceived parenting style), and neuro-cognitive underpinning (e.g., executive functions) were also targeted. Standardized interview schedules, self-report scales, and cognitive tasks will be applied. The investigators hypothesized that dissociative disorders would be associated with positive psychotic symptoms, a history of early interpersonal adversity, and enhanced executive functions.
Read the detailed description
Though formally included in the Diagnostic and Statistic Manual of Mental Disorders since 1980, dissociation had once been considered as a rare psychiatric disturbance. With standardized structured interview, however, recent empirical studies showed that in average 9 percent of participants in general population, 10 percent in psychiatric outpatients, and 15 percent in psychiatric inpatients receive the diagnosis of a dissociative disorder. In Taiwan few attempts have been made for systematic investigation of dissociative disorders. Little has been known about the characteristics, prevalence, and associated features of Taiwanese patients with a dissociative disorder. The goal of the project is to investigate the prevalence of dissociative disorders in psychiatric inpatients in Taiwan. Relevant clinical issues, including common psychiatric comorbidity (e.g., positive psychotic symptoms), associated psychosocial factors (e.g., negative life events, perceived parenting style), and neuro-cognitive underpinning (e.g., executive functions) were also targeted. Standardized interview schedules, self-report scales, and cognitive tasks will be applied and the assessment will be held by the licensed clinical psychologist who receive training on the assessment and treatment of dissociative disorders. The results may enhance the understanding about the clinical features of dissociative disorders in Taiwan.
- Conditions
- Dissociative Disorders
- Keywords
- dissociation, psychosis, trauma, parenting, executive functions
- Medical subject headings
- Dissociative Disorders, Psychotic Disorders, Wounds and Injuries
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
| Study group | Role | What they receive |
|---|---|---|
| psychiatric inpatients, regardless of clinical diagnoses | Not described |
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted6 Jul 2011 (estimated)
- Study startMar 2011
- Primary completionAug 2012 (estimated)
- Study completionAug 2012 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (3)Papers the sponsor has linked to this study.
- Other trials for Dissociative DisordersStudies of the same condition, open and under way.
- More trials run by National Taiwan University HospitalThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Case-control
- Time perspective
- Cross-sectional
- Enrolment
- 150 participants (estimated)
Sponsor and investigators
- Lead sponsor
- National Taiwan University Hospital
- Sponsor type
- University, hospital or other
- Investigators
- Hai-Gwo Hwu, MD, Principal investigator, National Taiwan University Hospital
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01388140
- Sponsor's protocol ID
- 201012003RB
- Status last verified
- Jan 2011
- First submitted
- 1 Jul 2011
- Last updated
- 6 Jul 2011
- Results posted
- No
- Data monitoring committee
- Yes
Publications
Xiao Z, Yan H, Wang Z, Zou Z, Xu Y, Chen J, Zhang H, Ross CA, Keyes BB. Trauma and dissociation in China. Am J Psychiatry. 2006 Aug;163(8):1388-91. doi: 10.1176/ajp.2006.163.8.1388.
PubMed 16877651Draijer N, Langeland W. Childhood trauma and perceived parental dysfunction in the etiology of dissociative symptoms in psychiatric inpatients. Am J Psychiatry. 1999 Mar;156(3):379-85. doi: 10.1176/ajp.156.3.379.
PubMed 10080552Chiu CD, Yeh YY, Huang YM, Wu YC, Chiu YC. The set switching function of nonclinical dissociators under negative emotion. J Abnorm Psychol. 2009 Feb;118(1):214-22. doi: 10.1037/a0014654.
PubMed 19222327
Study at a glance
From the registry record, last updated by the sponsor on 6 Jul 2011. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Psychopathological Study of Dissociative Disorders in Psychiatric Inpatients at an Acute Stage
- ClinicalTrials.gov ID
- NCT01388140
- Acronym / sponsor ID
- 201012003RB
- Conditions
- Dissociative Disorders
- Keywords
- dissociation, psychosis, trauma, parenting, executive functions
- Study type
- Observational
- Recruitment status
- Unknown status
- Enrolment
- 150 participants (estimated)
- Lead sponsor
- National Taiwan University HospitalUniversity, hospital or other
- Study start
- Mar 2011
- Primary completion
- Aug 2012 (estimated)
- Study completion
- Aug 2012 (estimated)
- First posted
- 6 Jul 2011 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The goal of the project is to investigate the prevalence of dissociative disorders in psychiatric inpatients in Taiwan. Relevant clinical issues, including common psychiatric comorbidity (e.g., positive psychotic symptoms), associated psychosocial factors (e.g., negative life events, perceived parenting style), and neuro-cognitive underpinning (e.g., executive functions) were also targeted. Standardized interview schedules, self-report scales, and cognitive tasks will be applied. The investigators hypothesized that dissociative disorders would be associated with positive psychotic symptoms, a history of early interpersonal adversity, and enhanced executive functions.
Detailed description
Though formally included in the Diagnostic and Statistic Manual of Mental Disorders since 1980, dissociation had once been considered as a rare psychiatric disturbance. With standardized structured interview, however, recent empirical studies showed that in average 9 percent of participants in general population, 10 percent in psychiatric outpatients, and 15 percent in psychiatric inpatients receive the diagnosis of a dissociative disorder. In Taiwan few attempts have been made for systematic investigation of dissociative disorders. Little has been known about the characteristics, prevalence, and associated features of Taiwanese patients with a dissociative disorder. The goal of the project is to investigate the prevalence of dissociative disorders in psychiatric inpatients in Taiwan. Relevant clinical issues, including common psychiatric comorbidity (e.g., positive psychotic symptoms), associated psychosocial factors (e.g., negative life events, perceived parenting style), and neuro-cognitive underpinning (e.g., executive functions) were also targeted. Standardized interview schedules, self-report scales, and cognitive tasks will be applied and the assessment will be held by the licensed clinical psychologist who receive training on the assessment and treatment of dissociative disorders. The results may enhance the understanding about the clinical features of dissociative disorders in Taiwan.
Study design
- Observational model
- Case-control
- Time perspective
- Cross-sectional
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| psychiatric inpatients, regardless of clinical diagnoses | – | – |
Who may qualify
- Ages
- 20 to 60 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult
- Study population
- psychiatric inpatients in a acute stage
Key inclusion criteria (1 listed)
- being stable and appropriate for interviews
Key exclusion criteria (3 listed)
- with organic syndromes
- mentally retarded (FIQ <80)
- cannot communicate in Mandarin Chinese
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Not reported in the source record.
Results and safety
Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 6 Jul 2011.
- Background: PubMed 16877651Xiao Z, Yan H, Wang Z, Zou Z, Xu Y, Chen J, Zhang H, Ross CA, Keyes BB. Trauma and dissociation in China. Am J Psychiatry. 2006 Aug;163(8):1388-91. doi: 10.1176/ajp.2006.163.8.1388.
- Background: PubMed 10080552Draijer N, Langeland W. Childhood trauma and perceived parental dysfunction in the etiology of dissociative symptoms in psychiatric inpatients. Am J Psychiatry. 1999 Mar;156(3):379-85. doi: 10.1176/ajp.156.3.379.
- Background: PubMed 19222327Chiu CD, Yeh YY, Huang YM, Wu YC, Chiu YC. The set switching function of nonclinical dissociators under negative emotion. J Abnorm Psychol. 2009 Feb;118(1):214-22. doi: 10.1037/a0014654.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Hai-Gwo Hwu, MD principal investigator
National Taiwan University Hospital
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Dissociative Disorders, run by National Taiwan University Hospital at 1 site in Taiwan.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 1 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: status not confirmed, as of the sponsor's last update on 6 Jul 2011. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Taiwan. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
Results are not available in the source record.
How can a doctor refer a patient or contact the research team?
Contact Hai-Gwo Hwu, MD (886-2-23123456 ext. 66785, haigohwu@ntu.edu.tw), or a site near the patient. AzTrials does not enrol participants or take referrals.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT01388140, which also lists 3 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 6 Jul 2011.