SchizophreniaSchizo-CGH-EXMNCT02746510
Validation of a Clinical Screening Grid for Syndromic Schizophrenia
A study testing Array comparative genomic hybridization in people with Schizophrenia, run by Hôpital le Vinatier at 1 site in France.
Trial summary
Background: Nowadays, despite a large number of studies about schizophrenia and genetics, clinical red flags for syndromic forms of schizophrenia remain poorly documented. Read more about this study
- Who is it for?
- Ages 15 years and older
- Conditions the study is for
- Schizophrenia
- What is being tested?
- Array comparative genomic hybridization
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 129 participants
- Where
- 1 siteFrance
- Study dates
- Jul 2016to 20 Dec 2023
- Phase
- Interventional
- 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 15 years and older
- All sexes
- No healthy volunteers
- Child, Adult, Older adult
Who may be able to join
- Patient aged 15 years and more with a schizophrenia defined by the DSM V criterion
- Informed consent signed by the patient or he/she's legal representant
Who cannot join
- Pregnancy
- Current psychotic decompensation
- Patient with a known genetic syndrome
Trial locations and contacts
1 site in 1 country.
About this study
Background:
Nowadays, despite a large number of studies about schizophrenia and genetics, clinical red flags for syndromic forms of schizophrenia remain poorly documented.
Read the detailed description
Methods: This study aims to validate a short clinical screening grid for syndromic forms of schizophrenia linked to a pathogenic Copy Variation Number (CNV). The investigators plan to include 150 patients with defined (DSM V) schizophrenia and aged 15 years and more. The clinical grid will be prospectively fulfilled for every patients on the basis of his/her medical history and clinical examination. Array comparative genomic hybridization (CGH-a) will be performed on jugal mucosae sample to detect precisely syndromic forms of schizophrenia linked to the presence of a pathogenic Copy Number Variation (CNV).
In subjects with no CNV that may explain the onset of schizophrenia, the investigators would like to complete the investigations with exome trio sequencing. With this type of very clinical approach, the investigators wish to determine which semiological elements should alert the psychiatrists as to the presence of a syndromic form. The objective is to propose at the end of this study a simple and reliable scale, usable in psychiatry consultation, to guide the genetic screening of forms of syndromic schizophrenia.
- Conditions
- Schizophrenia
- Being tested
- Array comparative genomic hybridization
- Medical subject headings
- Schizophrenia
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Array comparative genomic hybridizationGenetic
For each of the 150 patients deoxyribose nucleic acid (DNA) exactracted from a jugal mucosae sample will be analysed by the cytogeneticist and a CGH-a will be performed.
| Study group | Role | What they receive |
|---|---|---|
| Array comparative genomic hybridization | Experimental | The investigators plan to include 150 patients with defined (DSM V) schizophrenia and aged 15 years and more. The clinical grid will be prospectively fulfilled for every patients on the basis of his/her medical history and clinical examination. Array comparative genomic hybridization (CGH-a) will be performed on jugal mucosae sample to detect precisely syndromic forms of schizophrenia linked to the presence of a pathogenic Copy Number Variation (CNV) or a pathogenic sequence variation (exome trio sequencing). Receives: Genetic: Array comparative genomic hybridization |
What is being measured
The primary outcome is the main question the study is designed to answer.
Presence or absence of each criteria from the grid.
The following criteria are evaluated:
Intelectual disability Precocity of the disease (before 15 years) Treatment resistance Confusion Familial history of schizophrenia Visual hallucination Psychomotor regression Pyramidal syndrome Ataxia Dystonia Areflexia Epilepsia Autism spectrum disorder Dysmorphic features ENT or visceral malformation Growth delay
Measured: During the inclusion visit (45 minutes)
Secondary outcomes (2)
Presence or absence of a pathogenic CNV detected on the CGH-a
For each of the 150 patients deoxyribose nucleic acid (DNA) exactracted from a jugal mucosae sample will be analysed by the cytogeneticist and a CGH-a will be performed. The results will be transmited to the principal investigator. The latter will transmit the results to the patients. If necessary a genetic counselling will be provided by a geneticist.
Measured: 4 months from samples to results
Whole exome sequencing
Searching for mosaic genetic variations that may have occurred secondarily to conception in 30 subjects with ARRAY CGH who do not find any chromosomal imbalance that could explain the symptoms
Measured: 6 months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted21 Apr 2016 (estimated)
- Study startJul 2016
- Primary completionFeb 2023
- Study completion20 Dec 2023
Why it stopped: Investigator departure
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for SchizophreniaStudies of the same condition, open and under way.
- More trials run by Hôpital le VinatierThe 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
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Diagnosis
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 129 participants (actual)
Sponsor and investigators
- Lead sponsor
- Hôpital le Vinatier
- Sponsor type
- University, hospital or other
- Collaborators
- Hospices Civils de Lyon
- Responsible party
- Sponsor
- Investigators
- POISSON Alice, PH, Principal investigator, Centre Hospitalier le Vinatier
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT02746510
- Sponsor's protocol ID
- 2015-A01992-47
- Acronym
- Schizo-CGH-EXM
- Status last verified
- Mar 2025
- First submitted
- 18 Apr 2016
- Last updated
- 6 Mar 2025
- Results posted
- No
- Data monitoring committee
- Yes
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 6 Mar 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Validation of a Clinical Screening Grid for Syndromic Schizophrenia
- ClinicalTrials.gov ID
- NCT02746510
- Acronym / sponsor ID
- Schizo-CGH-EXM / 2015-A01992-47
- Conditions
- Schizophrenia
- Study type
- Interventional
- Recruitment status
- TerminatedReason stopped: Investigator departure
- Enrolment
- 129 participants (actual)
- Lead sponsor
- Hôpital le VinatierUniversity, hospital or other
- Collaborators
- Hospices Civils de Lyon
- Study start
- Jul 2016 (actual)
- Primary completion
- Feb 2023 (actual)
- Study completion
- 20 Dec 2023 (actual)
- First posted
- 21 Apr 2016 (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.
Background:
Nowadays, despite a large number of studies about schizophrenia and genetics, clinical red flags for syndromic forms of schizophrenia remain poorly documented.
Detailed description
Methods: This study aims to validate a short clinical screening grid for syndromic forms of schizophrenia linked to a pathogenic Copy Variation Number (CNV). The investigators plan to include 150 patients with defined (DSM V) schizophrenia and aged 15 years and more. The clinical grid will be prospectively fulfilled for every patients on the basis of his/her medical history and clinical examination. Array comparative genomic hybridization (CGH-a) will be performed on jugal mucosae sample to detect precisely syndromic forms of schizophrenia linked to the presence of a pathogenic Copy Number Variation (CNV).
In subjects with no CNV that may explain the onset of schizophrenia, the investigators would like to complete the investigations with exome trio sequencing. With this type of very clinical approach, the investigators wish to determine which semiological elements should alert the psychiatrists as to the presence of a syndromic form. The objective is to propose at the end of this study a simple and reliable scale, usable in psychiatry consultation, to guide the genetic screening of forms of syndromic schizophrenia.
Study design
- Primary purpose
- Diagnosis
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Array comparative genomic hybridization | Experimental | Genetic: Array comparative genomic hybridizationThe investigators plan to include 150 patients with defined (DSM V) schizophrenia and aged 15 years and more. The clinical grid will be prospectively fulfilled for every patients on the basis of his/her medical history and clinical examination. Array comparative genomic hybridization (CGH-a) will be performed on jugal mucosae sample to detect precisely syndromic forms of schizophrenia linked to the presence of a pathogenic Copy Number Variation (CNV) or a pathogenic sequence variation (exome trio sequencing). |
Who may qualify
- Ages
- 15 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult, Older adult
Key inclusion criteria (2 listed)
- Patient aged 15 years and more with a schizophrenia defined by the DSM V criterion
- Informed consent signed by the patient or he/she's legal representant
Key exclusion criteria (3 listed)
- Pregnancy
- Current psychotic decompensation
- Patient with a known genetic syndrome
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Array comparative genomic hybridizationFor each of the 150 patients deoxyribose nucleic acid (DNA) exactracted from a jugal mucosae sample will be analysed by the cytogeneticist and a CGH-a will be performed. | Genetic | Array comparative genomic hybridization |
Primary outcome
Presence or absence of each criteria from the grid.
Time frame: During the inclusion visit (45 minutes)
The following criteria are evaluated: Intelectual disability Precocity of the disease (before 15 years) Treatment resistance Confusion Familial history of schizophrenia Visual hallucination Psychomotor regression Pyramidal syndrome Ataxia Dystonia Areflexia Epilepsia Autism spectrum disorder Dysmorphic features ENT or visceral malformation Growth delay
2 secondary outcomes
Presence or absence of a pathogenic CNV detected on the CGH-a
Time frame: 4 months from samples to results
Whole exome sequencing
Time frame: 6 months
Results and safety
The study was stopped early (reason given: Investigator departure). Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 6 Mar 2025.
- Individual participant dataSharing planned: No
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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.
POISSON Alice, PH principal investigator
Centre Hospitalier le Vinatier
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Array comparative genomic hybridization in people with Schizophrenia, run by Hôpital le Vinatier at 1 site in France.
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 2 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: stopped early, as of the sponsor's last update on 6 Mar 2025. 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 France. 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?
The study was stopped early (reason given: Investigator departure). Results are not available in the source record.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Presence or absence of each criteria from the grid. (time frame: During the inclusion visit (45 minutes)). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
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 Mar 2025; AzTrials last refreshed its copy on 6 Nov 2026.