Improving Cognition Via Exercise in Schizophrenia

April 12, 2023 updated by: David Kimhy, Icahn School of Medicine at Mount Sinai
People with schizophrenia display a broad range of cognitive impairments that have been identified as major determinants of poor functioning and disability. Also, people with schizophrenia are at increased risk for suicide, with approximately 40-50% of individuals attempting to take their own lives during their lifetime. The goal of the proposed study is to examine the impact of remote exercise training on cognition, suicide risk, daily functioning, and biomarkers of cognitive change and suicidality in people with schizophrenia.

Study Overview

Detailed Description

The goal of the proposed study is to examine the impact of remote exercise training on cognitive functioning in people with schizophrenia. People with schizophrenia display a broad range of cognitive impairments that have been identified as major determinants of poor functional outcome and disability, thus representing an important public health concern and a target for interventions. At present, available treatments offer only minimal to limited benefits to ameliorate these deficits. Extensive animal and human research literatures converge in supporting the positive influence of aerobic exercise training on cognitive functioning. Preliminary data indicate that aerobic exercise training is effective in improving cognitive functioning in people with schizophrenia. However, previous studies employed small samples, focused on a single or limited range of cognitive domains, and/or collected insufficient information on daily functioning or putative biomarkers underlying cognitive change. Supported by supplement funding from NIMH, the goal of the proposed study is also to explore the impact of remote exercise training on suicide risk in individuals with schizophrenia. People with schizophrenia are at increased risk for suicide, with approximately 40-50% of individuals attempting to take their own lives during their lifetime, and an estimated 5-10% actually being successful in completing suicide. This highly elevated risk represents a serious public health concern and an important target for interventions. However, available treatments offer only minimal to limited benefits to ameliorate this risk. Extensive animal and human research literatures converge in supporting the positive influence of AE training on a number of predictors of suicide risk including depressed mood, sleep difficulties, and poor cognition. Yet, at present there are no studies directly examining the impact of AE on suicide risk in this population.

Study Type

Interventional

Enrollment (Actual)

104

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • California
      • Stanford, California, United States, 94305
        • Stanford University
    • Georgia
      • Augusta, Georgia, United States, 30912
        • Augusta University
    • New York
      • New York, New York, United States, 10029
        • Icahn School of Medicine at Mount Sinai
    • North Carolina
      • Chapel Hill, North Carolina, United States, 27599
        • University of North Carolina

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 55 years (Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • A DSM-V diagnosis of schizophrenia, schizoaffective, or schizophreniform disorder.
  • Age 18-55 years.
  • Taking antipsychotic medication for at least 8 weeks and on current doses for 4 weeks, and/or injectable depot antipsychotics with no change in the last 3 months.
  • Capacity to understand all the potential risks and benefits of the study.
  • Medically cleared by a physician to take part in VO2max tests and aerobic exercise training or stretching-and-toning exercise training.

Exclusion Criteria:

  • A DSM-V diagnosis of alcohol/substance abuse (except nicotine) within the last month or a diagnosis of alcohol/substance dependence (except nicotine) within the last 6 months
  • Initiation of anti-depressants, mood stabilizers, or other medications known to impact cognition in previous 4 weeks or any change in doses during this period.
  • History of seizures/head trauma with loss of consciousness (>10 minutes) resulting in cognitive sequelae.
  • Significant clinical abnormalities in physical examination, lab assessments, or ECG.
  • Neurological/medical conditions that could interfere with study participation (e.g., unstable cardiac disease, stuttering).
  • Body Mass Index (BMI) ≥ 40.
  • Untreated hyper- or hypothyroidism.
  • Being pregnant or nursing.
  • Serious homicidal/suicidal risk (past 6 months).
  • "Moderate" or more severe conceptual disorganization (PANSS≥4).
  • Poor English reading ability (WTAR<7).
  • Participation in a study with cognitive assessment in the past 3 months.
  • Serious homicidal risk (past 6 months)

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Aerobic Exercise
Using trainer-led video calls with traditional callisthenic body movements (e.g., jumping jacks, burpees, etc.)
Trainer-led one hour aerobic exercise sessions, three times per week, over 12 weeks.
Active Comparator: Stretching and Toning Exercise
Using trainer-led video calls with stretching and toning exercises.
Trainer-led one hour stretching-and-toning exercise sessions, three times per week, over 12 weeks.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change in the MATRICS Consensus Cognitive Battery (MCCB)
Time Frame: Baseline and 12 weeks
The MCCB is a standardized battery designed to measure cognitive functioning in people with schizophrenia. The MCCB is represented as a composite T score. Change in the MCCB at 12 weeks as compared to baseline.
Baseline and 12 weeks
Change in VO2Max
Time Frame: Baseline and 12 weeks
VO2Max (maximal oxygen consumption) is an index of the ability to consume oxygen and is a key indicator of aerobic fitness. Change in the VO2Max at 12 weeks as compared to baseline.
Baseline and 12 weeks

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change in the Specific Levels of Functioning Scale (SLOF)
Time Frame: Baseline and 12 weeks
The SLOF is a 43-item survey assessing multiple domains of daily functioning. Total score range from 43 to 215, with higher scores indicating better the overall functioning. Change in the SLOF at 12 weeks as compared to baseline.
Baseline and 12 weeks
Change in the UCSD Performance-based Skills Assessment (UPSA)
Time Frame: Baseline and 12 weeks
The UPSA is performance-based measure of real-world daily functioning abilities. Participants receive scores for multiple domains, which are summed to create a summary score ranging from 0 to 100 with higher score indicating better overall functioning. Change in the UPSA at 12 weeks as compared to baseline.
Baseline and 12 weeks
Change in the Schizophrenia Cognition Rating Scale (SCoRS)
Time Frame: Baseline and 12 weeks
The SCoRS is a 20-item clinician-administered interview assessing cognition-related daily functioning. Each item rated on a 4-point scale ranging from "no impairment" to "severe impairment". Total scores range from 20-80, with higher score indicating poorer functioning. Change in the SCoRS at 12 weeks as compared to baseline.
Baseline and 12 weeks
Serum BDNF
Time Frame: Baseline and 12 weeks
BDNF is extracted from blood samples and serves as a biomarker of exercise-related cognitive changes. Change in the BDNF at 12 weeks as compared to baseline.
Baseline and 12 weeks
Change in Columbia Suicide Severity Rating Scale (C-SSRS)
Time Frame: Baseline and 12 weeks
The C-SSRS is a semi-structured interview that measures 4 suicide risk related domains: ideation severity, ideation intensity, behavior, and lethality. Full scale from 1-10, with higher score indicating more suicidal ideation and behavior. Change in the C-SSRS at 12 weeks as compared to baseline.
Baseline and 12 weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

April 26, 2018

Primary Completion (Actual)

January 31, 2023

Study Completion (Actual)

January 31, 2023

Study Registration Dates

First Submitted

August 30, 2017

First Submitted That Met QC Criteria

August 30, 2017

First Posted (Actual)

September 1, 2017

Study Record Updates

Last Update Posted (Actual)

April 14, 2023

Last Update Submitted That Met QC Criteria

April 12, 2023

Last Verified

April 1, 2023

More Information

Terms related to this study

Other Study ID Numbers

  • GCO 17-1511
  • 1R01MH110623-01A1 (U.S. NIH Grant/Contract)
  • 3R01MH110623-03S1 (U.S. NIH Grant/Contract)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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