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Psychotic DisordersNCT02822092

Striatal Connectivity and Clinical Outcome in Psychosis

An observational study of Psychotic Disorders, run by Northwell Health at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This is an observational neuroimaging treatment study. This study involves examining the neural circuitry of controlled treatment of patients presenting with a first-episode of psychosis with risperidone or aripiprazole. Read more about this study

Who is it for?
Ages 15 to 40 yearsHealthy volunteers can take part
Conditions the study is for
Psychotic Disorders
What is being tested?
Risperidone or Aripiprazole (patients only)
How many people
196 participants
Where
1 siteUnited States
Study dates
Jul 2016to Dec 2023
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 15 to 40 years
  • All sexes
  • Healthy volunteers accepted
  • Child, Adult

Study population: Healthy Volunteers and Patients with Psychotic Disorders

Who may be able to join

  • current DSM-IV-defined diagnosis of schizophrenia, schizophreniform, schizoaffective disorder, brief psychotic disorder, psychotic disorder NOS, bipolar I with psychotic features (acute manic or mixed episode), major depressive disorder with psychotic features as assessed using the Structured Clinical Interview for Axis I DSM-IV Disorders (SCID-I/P) (First et al, 1994);
  • does not meet DSM-IV criteria for a current substance-induced psychotic disorder, a psychotic disorder due to a general medical condition, delusional disorder, shared psychotic disorder, or a mood disorder without psychotic features;
  • current positive symptoms rated ≥4 (moderate) on one or more of these BPRS (Woerner et al., 1988) items: conceptual disorganization, grandiosity, hallucinatory behavior, unusual thought content;
  • is in a early phase of illness as defined by having taken antipsychotic medications for a cumulative lifetime period of 4 weeks or less,
  • age 15 to 40;
  • competent and willing to sign informed consent; and
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  • for women, negative pregnancy test and agreement to use a medically accepted birth control method.
  • age 15 to 40
  • competent to sign informed consent

Who cannot join

  • serious neurological or endocrine disorder or any medical condition or treatment known to affect the brain
  • any medical condition which requires treatment with a medication with psychotropic effects
  • significant risk of suicidal or homicidal behavior
  • cognitive or language limitations, or any other factor that would preclude subjects providing informed consent
  • medical contraindications to treatment with risperidone or aripiprazole monotherapy (e.g. neuroleptic malignant syndrome with prior risperidone exposure)
  • lack of response to a prior adequate trial of risperidone or aripiprazole
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  • Healthy Volunteers
  • lifetime history of any mood disorder or any psychotic disorder as determined by clinical interview using the SCID-NP
  • MR imaging contraindications
  • neurologic conditions
  • any serious non-psychiatric disorder that could affect brain functioning
  • mental retardation

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Zucker Hillside Hospital

    Glen Oaks, New York, 11004

Other trials in United States

About this study

This is an observational neuroimaging treatment study. This study involves examining the neural circuitry of controlled treatment of patients presenting with a first-episode of psychosis with risperidone or aripiprazole. Patients who present for treatment of a first psychotic episode with a schizophrenia spectrum diagnosis and who are eligible to undergo treatment with either risperidone or aripiprazole will be offered participation in the study. Clinical ratings, neuropsychological testing, neuroimaging and EEG will be conducted at baseline. Additionally, subjects will undergo the same assessments at week 12 to determine treatment-related biomarkers. Clinical ratings, including neurocognitive testing, will be conducted by blinded raters at study visits during treatment. Healthy controls (N=50) will also be recruited and scanned twice (12-week interval) to control for effects of time and practice.

Read the detailed description

In this proposed study, the study will examine treatment-related effects on functional brain circuitry in first episode schizophrenia. Converging lines of evidence suggest a key role for striatal disconnectivity in the pathophysiology of psychosis. The proposed study will utilize resting state functional magnetic resonance imaging (rs-fMRI), as well as fMRI tasks derived from the Research Domain Criteria (RDoC) framework, to: 1) develop and validate a prognostic biomarker to predict antipsychotic treatment response; and 2) to model the underlying neural circuitry changes associated with state changes in psychotic symptomatology. As a prognostic biomarker, a neuroimaging assay of striatal connectivity can potentially provide a clinically useful tool to advance the goal of precision medicine. As a longitudinal index of symptom change, our model can serve as an objective index against which to measure potential efficacy of newly developed antipsychotic treatments.

A large, well-characterized cohort of patients presenting with a first episode active psychosis (regardless of DSM diagnosis) will be recruited, along with matched controls. The study will utilize two well-validated fMRI tasks capturing two portions of the positive valence system: probabilistic category learning and reward responsiveness; these tasks are designed to interrogate dorsal and ventral corticostriatal circuits, respectively. The design will be longitudinal, with two scanning sessions performed for each patient: at baseline, and after 12 weeks of treatment. Treatment will be standardized across all patients to reduce potential confounds, and healthy controls will also be scanned at baseline and 12 weeks in order to control for effects of time and practice. Level of psychotic symptomatology (hallucinations, delusions, and thought disorder) will be measured at regular intervals using a comprehensive battery of rating scales. As secondary measures, electroencephalography (EEG) will be performed coinciding with neuroimaging on a subset of patients who provide consent. We will utilize Kaplan-Meier estimators and hierarchical linear modeling to examine the association of baseline striatal connectivity, and changes in connectivity over time, with clinical response of psychotic symptoms to antipsychotic treatment. Deliverables will include both baseline and longitudinal biomarkers that can subsequently be tested in broader, more heterogeneous populations of patients with psychosis.

Being tested
Risperidone or Aripiprazole (patients only)
Medical subject headings
Psychotic Disorders

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Risperidone or Aripiprazole (patients only)Drug

    Also called Risperidal, Aripiprazole

    Inpatients deemed eligible for the study, we be put on open-label risperidone

Study groups in NCT02822092
Study groupRoleWhat they receive
Patients with Psychotic Disorders taking Risp. or Arip.Risperidone or aripiprazole will be administered. Subjects will start risperidone 1 mg qhs or 5mg qhs aripiprazole; on day 4 the daily dose will be increased to 2 mg risperidone or 10mg aripiprazole and to 3 mg risperidone or 15mg aripiprazole at day 7. The target dose is 3 mg risperidone or 15 mg aripiprazole daily but patients who remain psychotic can be increased to 4 mg risperidone or 20mg aripiprazole at week 4; 5 mg risperidone or 25 mg aripiprazole at week 6 and 6 mg risperidone or 30 mg aripiprazole at week 8. Study Psychiatrists will be able to increase faster if symptoms don't improve as well as decrease for side effects. These dose ranges conform with standard clinical practice and are within the FDA approved dosing ranges for schizophrenia, and schizoaffective disorder. Subjects advance in the risperidone titration schedule until they respond or develop dose-limiting side effects.
Receives: Drug: Risperidone or Aripiprazole (patients only)
Healthy VolunteersHealthy Volunteers will participate in MR imaging, Electroencephalogram , and cognitive testing.

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. efficacy of risperidone or aripiprazole for psychotic symptoms

    To examine the efficacious treatment of psychotic symptoms with either risperidone or aripiprazole measured by specific items on the Brief Psychiatric Rating Scale - conceptual disorganization, grandiosity, hallucinatory behavior, unusual thought content

    Measured: 12 weeks

Secondary outcomes (2)
  1. Relationship between efficacious treatment of psychotic symptoms and changes in functional connectivity of the striatum

    To examine the relationship between efficacious treatment of psychotic symptoms (measured by the Brief Psychiatric Rating Scale) and changes in functional connectivity of the striatum, calculated from fMRI scans

    Measured: 12 weeks

  2. Predicting treatment efficacy from baseline fMRI scans

    To examine whether baseline fMRI scans can predict treatment efficacy which will be measured by the Brief Psychiatric Rating Scale.

    Measured: 12 weeks

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted4 Jul 2016 (estimated)
  2. Study startJul 2016
  3. Primary completionDec 2023
  4. Study completionDec 2023

Resources

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 only
Time perspective
Prospective
Enrolment
196 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02822092
Sponsor's protocol ID
HS16-0411
Status last verified
Feb 2024
First submitted
27 Jun 2016
Last updated
21 Feb 2024
Results posted
No
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

An observational study of Psychotic Disorders, run by Northwell Health at 1 site in United States.

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 9 inclusion and 12 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: finished, as of the sponsor's last update on 21 Feb 2024. 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 United States. 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 is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

efficacy of risperidone or aripiprazole for psychotic symptoms (time frame: 12 weeks). 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 21 Feb 2024.

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