NCT01555814

Brief Summary

The investigators want to relate disturbances in first-episode schizophrenic patients in (dopaminergic) D2 receptors, brain structure, brain function, and information processing to each other and to psychopathology. Additionally, the investigators want to examine the influence of D2 receptor blockade on these disturbances. The investigators expect disturbances in the dopaminergic system at baseline to correlate with specific structural and functional changes and with disruption in information processing as measured with psychophysiological and neurocognitive methods - and investigators expect D2 receptor blockade to reverse some of the functional and cognitive impairments. The investigators do not expect any effect of treatment on brain structure.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
56

participants targeted

Target at P25-P50 for not_applicable schizophrenia

Timeline
Completed

Started May 2011

Longer than P75 for not_applicable schizophrenia

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

May 1, 2011

Completed
5 months until next milestone

First Submitted

Initial submission to the registry

September 19, 2011

Completed
6 months until next milestone

First Posted

Study publicly available on registry

March 15, 2012

Completed
4.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 1, 2016

Completed
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

October 1, 2016

Completed
Last Updated

October 26, 2016

Status Verified

October 1, 2016

Enrollment Period

5.2 years

First QC Date

September 19, 2011

Last Update Submit

October 25, 2016

Conditions

Keywords

dopaminefirst episoderewardcognitionMRIfMRIPPIP300P50 gatingendophenotypes

Outcome Measures

Primary Outcomes (1)

  • Relationship between specific neuropsychiatric measures and global improvement on PANSS scores

    Changes in neuropsychiatric measures like (e.g. PPI, P50-suppression, neurocogtion etc.) will be evaluated and related to the primary outcome measure of the main OPTiMiSE study, the PANSS score change from baseline to follow-up.

    4 weeks of medical treatment

Secondary Outcomes (6)

  • Effect of antipsychotic medication on the D2 binding potential (SPECT) in antipsychotic naive patients with schizophrenia.

    Baseline, 4 weeks

  • Effect of antipsychotic medication on P50-suppression

    Baseline, 4 weeks, 6,12,24 months

  • Effect of antipsychotic medication on the human reward system

    Baseline and 4 weeks follow up

  • Change in hippocampal and basal ganglia volume from baseline to follow-up.

    4 weeks, 6, 12 and 24 months,

  • Change in processing speed over time after antipsychotic treatment.

    Baseline, 4 weeks, 6,12,24 months

  • +1 more secondary outcomes

Study Arms (1)

Amisulpride

EXPERIMENTAL

For 4 weeks, all patients will be treated with amisulpride open label.

Drug: Amisulpride

Interventions

4-week open label amisulpride treatment

Also known as: Solian
Amisulpride

Eligibility Criteria

Age18 Years - 40 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Schizophrenia, schizophreniform or schizoaffective disorder (DSM-IV)
  • Age 18-40 years
  • Written informed consent.

You may not qualify if:

  • A time interval between the onset of positive symptoms (hallucinations and/or delusions) and study entry exceeding two years.
  • Prior use of antipsychotic medication longer than an episode of two weeks in the previous year and/or 6 weeks lifetime.
  • Intolerance to one of the drugs in this study. Patients who are coercively treated at a psychiatric ward (based on a judicial ruling)
  • Patients who are represented by a legal ward or under legal custody
  • The presence of one or more of the contraindications against any of the study drugs as mentioned in the SPC texts
  • Pregnancy, as determined through a pregnancy test, or lactation

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Center for Neuropsychiatric Schizophrenia Research, University of Copenhagen, Psychiatric Center Glostrup Glostrup, Denmark

Glostrup Municipality, Denmark

Location

Related Links

MeSH Terms

Conditions

SchizophreniaPsychotic Disorders

Interventions

Amisulpride

Condition Hierarchy (Ancestors)

Schizophrenia Spectrum and Other Psychotic DisordersMental Disorders

Intervention Hierarchy (Ancestors)

BenzamidesAmidesOrganic ChemicalsBenzoatesAcids, CarbocyclicCarboxylic AcidsBenzene DerivativesHydrocarbons, AromaticHydrocarbons, CyclicHydrocarbons

Study Officials

  • Birte Glenthøj, MD, DMSc

    Center for Neuropsychiatric Schizophrenia Research, University of Copenhagen, Psychiatric Center Glostrup Glostrup, Denmark

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
DIAGNOSTIC
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

September 19, 2011

First Posted

March 15, 2012

Study Start

May 1, 2011

Primary Completion

July 1, 2016

Study Completion

October 1, 2016

Last Updated

October 26, 2016

Record last verified: 2016-10

Locations