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CognitionPhase 3COSTEP 1NCT07231497

Cognitive Strategies in Early Psychosis 1

A Phase 3 study testing Modafinil in people with Cognition and Healthy Participants, run by University of Minnesota at 1 site in United States.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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Trial summary

The goal of this clinical is to learn more about decision making in psychosis spectrum disorders, like schizophrenia. The investigators will ask people who do not have psychosis to take a single dose of modafinil and then complete some brain games on the computer that measure decision making. Read more about this study

Who is it for?
Ages 18 to 35 yearsHealthy volunteers can take part
Conditions the study is for
Cognition, Healthy Participants
What is being tested?
Modafinil
Could I receive a placebo?
No, everyone receives an active treatment
How many people
103 participants
Where
1 siteUnited States
Study dates
31 Oct 2025to 30 Apr 2030
Phase
Phase 3
Are there results?
Not yet: the study is under way

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 18 to 35 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • English proficiency, as determined by staff observation and participant self-report
  • Estimated IQ at or above 70, as estimated by the cognitive assessments
  • Is clinical stable, defined as outpatient status for at least one month prior to study participation
  • Has clinically stable doses of medication for at least one month prior to study participation as determined by the PI
  • Participants may have minor adjustments in medication doses in the past 30 days, per PI discretion, but may not have major increases or decreases in dosses, or additions or removal of medications in the past 30 days
  • Participants are to have no changes to medications in the past 7 days before study medication administration (i.e., must have been on a stable dose for at least 7 days prior to receiving the study drug).

Who cannot join

  • Medical criteria:
  • Presence of the following medical concerns, as determined by the study PI:
  • Major neurological disorder
  • History of head injury with or without prolonged consciousness
  • Any major medical condition that, in the opinion of the PI, would impede participation in the study or would put the participant at additional risk by participating
  • History of any of the following as reported by the participant:
Show all 48Show fewer
  • Renal impairment, injury, or disease
  • Hepatic impairment, injury, or disease
  • Myocardial infarction or heart disease.
  • The following cardiac symptoms requiring medical follow-up that, in the opinion of the investigator, would impede participation in the study or would put the participant at additional risk by participating
  • Dsypnea
  • Palpitations
  • Orthopnea
  • Pedal oedema
  • Significant dizziness
  • Syncope
  • Claudication ---Low white blood cell count, or is diagnosed with leukopenia, neutropenia, or agranulocytosis
  • Presence of unmanaged hypertension (>140/90) or elevated resting heart rate (>100 bpm)
  • Abnormal clinical laboratory values:
  • uACR > 30 mg/g
  • creatinine level >0/95 mg/dL
  • AST or ALT >50 U/L
  • Bilirubin >1.2 mg/dL
  • Total Protein <6 g/dL
  • Participant is pregnant, planning to become pregnant, or is breastfeeding
  • Participant cannot pass the visual acuity test (e.g., a score lower than 20/25 on the Snellen)
  • Takes medications or supplements that have major interactions with modafinil (e.g., ketamine, MAOIs, clomipramine, diazepam, propranolol, warfarin, amphetamine or dextroamphetamine, dexmethylphenidate or methylphenidate)
  • Has an allergy to modafinil
  • Is currently taking modafinil as a prescription
  • Has previously experienced Stevens-Johnson syndrome in response to taking a medication
  • Mental health criteria:
  • Meets criteria for severe substance or alcohol use disorder within 3 months of enrollment
  • Lifetime history of stimulant use disorder
  • Meets criteria for clinical risk of suicidal behavior, as defined by:
  • Clinician judgment
  • Active suicidal ideation at screening or other appointments
  • Previous intent to act on suicidal ideation with a specific plan and/or preparatory acts within 6 months of enrollment
  • A suicide attempt within 6 months of enrollment
  • Meets criteria for a depressive episode within the past month as determined by the diagnostic interview or for a severe or extremely severe depressive episode in the abbreviated battery within the past month
  • Meets DSM-5 criteria for, or reports professional diagnosis of, a psychotic, bipolar, or autism spectrum disorder
  • Has a family history (1st degree relative) of psychotic, bipolar, or autism spectrum disorder
  • Is prescribed psychotropic medications or takes supplements with psychotropic effects (e.g., Nootropics)
  • Any other psychiatric symptoms or conditions that, in the opinion of the PI, would impede participation in the study or put the participant at additional risk by participating
  • Other Criteria:
  • Unable or unwilling to provide informed consent
  • Unable to demonstrate adequate decisional capacity, in the judgment of the consenting study staff member, to make a choice about participating in the research study
  • Participant is illiterate
  • Have engaged in significant cognitive training, in the opinion of the PI, in the last year

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

Kaylee Enevold contact

612-403-4585

costep1@umn.edu

United States1 site, 1 recruiting
  • University of Minnesota

    Minneapolis, Minnesota, 55455

    Ariel Currie, 612-626-7261, curri015@umn.edu

    Recruiting

Other trials in United States

About this study

The goal of this clinical is to learn more about decision making in psychosis spectrum disorders, like schizophrenia. The investigators will ask people who do not have psychosis to take a single dose of modafinil and then complete some brain games on the computer that measure decision making. They hope to improve our understanding of psychosis to help people in the future. The main research questions are:

Does a single dose of modafinil change how people play the brain games? Does a single dose of modafinil change brain activity?

Read more

Participants will:

Complete an interview and self-report questionnaires. Complete safety screening activities, like a blood draw, a urine drug test, and an alcohol breathalyzer test.

Take a single dose of modafinil. Complete brain games while wearing an electroencephalography (EEG) cap, before and after taking the single dose of modafinil. EEG measures electrical activity in the brain.

Read the detailed description

Participants will be asked to complete two appointments in this study. These appointments will ideally be about 1 week apart, but can be up to 1 month apart if needed.

The first appointment is the Intake and Clinical appointment. This visit will take between 30 minutes to 2.5 hours, depending on how many study tasks are needed. Participants in this study may have participated in a sister study, called "State Representation in Early Psychosis 2 (STEP 2)." If so, they will not need to complete many of the intake questionnaires, and it is expected to take about 30 minutes for them to complete this appointment. If they did not participate in STEP 2, participants will need to complete the full intake battery.

During the interview, the investigators will ask questions about a participant's medical and psychiatric history, and current and past mental health symptoms. The investigators will collect demographics, as well as information on the person's social life and quality of life. After the interview, they will complete brain games on their computer.

The second appointment is the EEG + Medication appointment. Participants will come in person to the MHealth Fairview Riverside Campus. The visit will take place in the University of Minnesota Department of Psychiatry. This visit will take about 4-4.5 hours.

First, the investigators will complete safety screening measures. This will include:

  • A blood draw for lab testing. They will collect one 3mL tube, which is less than ⅔ of a teaspoon.
  • A blood pressure reading.
  • A breathalyzer to test for the presence of alcohol.
  • A urine drug test to screen for the presence of substances.
  • If pregnancy is a physical possibility, a urine pregnancy test will be required.

After screening measures are successfully completed, the investigators will fit an EEG cap onto the participant's head. While this is happening, the participant will complete self-report questionnaires. Once the cap is in place, the participant will play some brain games.

After this, the participant will take a single dose of modafinil. The participant will be provided with a meal while the modafinil metabolizes. Afterwards, they will monitor the participant's vital signs and ask whether they are experiencing any adverse effects.

After the observation period is completed, the participant will complete the same brain games on the computer. The investigators will take another vital signs measurement and ask about adverse effects.

The following day, the investigators will contact the participant via phone to ask whether they experienced any adverse effects after leaving the study appointment. This call should last about 5 minutes.

Being tested
Modafinil
Keywords
Cognition, Decision making, Electroencephalography (EEG), Psychosis
Medical subject headings
Psychotic Disorders

What participants receive

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

  • ModafinilDrug

    Single dose of 200mg

Study groups in NCT07231497
Study groupRoleWhat they receive
COSTEP 1ExperimentalNot described
Receives: Drug: Modafinil

What is being measured

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

  1. Test My Brain - Digit Symbol Coding

    A computerized cognitive assessment measuring processing speed. Z scores range from -5 to 5, with a higher score indicating increased cognitive functioning.

    Measured: Baseline

  2. Test My Brain - Digit Symbol Coding

    A computerized cognitive assessment measuring processing speed. Z scores range from -5 to 5, with a higher score indicating increased cognitive functioning.

    Measured: Day 7 (EEG + Modafinil Appointment)

  3. Test My Brain - Verbal Paired Associates Memory

    A computerized cognitive assessment measuring verbal memory. Z scores range from -5 to 5, with a higher score indicating increased cognitive functioning.

    Measured: Baseline

  4. Test My Brain - Verbal Paired Associates Memory

    A computerized cognitive assessment measuring verbal memory. Z scores range from -5 to 5, with a higher score indicating increased cognitive functioning.

    Measured: Day 7 (EEG + Modafinil Appointment)

  5. Test My Brain - Matrix Reasoning

    A computerized cognitive assessment measuring problem solving. Z scores range from -5 to 5, with a higher score indicating increased cognitive functioning.

    Measured: Baseline

  6. Test My Brain - Matrix Reasoning

    A computerized cognitive assessment measuring problem solving. Z scores range from -5 to 5, with a higher score indicating increased cognitive functioning.

    Measured: Day 7 (EEG + Modafinil Appointment)

  7. Test My Brain - Multiracial Emotion Identification

    A computerized cognitive assessment measuring social cognition and emotion recognition skills. Z scores range from -5 to 5, with a higher score indicating increased cognitive functioning.

    Measured: Baseline

  8. Test My Brain - Multiracial Emotion Identification

    A computerized cognitive assessment measuring social cognition and emotion recognition skills. Z scores range from -5 to 5, with a higher score indicating increased cognitive functioning.

    Measured: Day 7 (EEG + Modafinil Appointment)

  9. Electroencaphalography (EEG) - Resting alpha synchrony

    The EEG will measure resting state alpha synchrony in the brain. The primary outcome will be differences in EEG activity before and after modafinil administration.

    Measured: Day 7 (EEG + Modafinil Appointment)

  10. Electroencaphalography (EEG) - Oscillatory frontal gamma synchrony

    The EEG will measure oscillatory frontal gamma synchrony in the brain. The primary outcome will be differences in EEG activity before and after modafinil administration

    Measured: Day 7 (EEG + Modafinil Appointment)

  11. Electroencaphalography (EEG) - Task-related reward positivity/P900

    The EEG will measure task-related reward positivity/P900 activity in the brain. The primary outcome will be differences in EEG activity before and after modafinil administration

    Measured: Day 7 (EEG + Modafinil Appointment)

  12. Electroencaphalography (EEG) - N1 amplitude

    The EEG will measure N1 amplitude in the brain. The primary outcome will be differences in EEG activity before and after modafinil administration

    Measured: Day 7 (EEG + Modafinil Appointment)

  13. Dot Pattern Expectancy variation (TOPX) Task - Accuracy

    The TOPX task consists of a series of pattern sequences. One pattern is designated the "A" cue, and another the "X" cue, which requires one response (AX, 60-70% of trials, e.g. respond with the left button), while other sequences require a different response (AY or BX, 12-15% of trials each, or BY, 6-10% of trials, e.g. respond with the right button). Given the strong expectation that X's evokes a valid response, BX trials place demands on the fidelity (stability, memory) of the "B" cue state representation to overcome this tendency. Performance is assessed based on accuracy of responses. The primary outcome will be differences in task accuracy before and after modafinil administration.

    Measured: Day 7 (EEG + Modafinil Appointment)

  14. Dot Pattern Expectancy variation (TOPX) Task - Response Time

    The TOPX task consists of a series of pattern sequences. One pattern is designated the "A" cue, and another the "X" cue, which requires one response (AX, 60-70% of trials, e.g. respond with the left button), while other sequences require a different response (AY or BX, 12-15% of trials each, or BY, 6-10% of trials, e.g. respond with the right button). Given the strong expectation that X's evokes a valid response, BX trials place demands on the fidelity (stability, memory) of the "B" cue state representation to overcome this tendency. Response time performance is assessed based on the delay in the presentation of the stimuli and the selection of the response. The primary outcome will be differences in response times before and after modafinil administration.

    Measured: Day 7 (EEG + Modafinil Appointment)

  15. Translational Bandit Task (TBT) - Accuracy

    This is a task variant that uses choice options (neutral images) that are rewarded probabilistically. The rewarded stimulus with the highest reward is changed over time. State learning associated with staying or switching stimuli too quickly (lose-switching) can be evaluated. Performance is assessed based on selection of the option that will yield the highest reward. The primary outcome will be differences in task performance before and after modafinil administration.

    Measured: Day 7 (EEG + Modafinil Appointment)

  16. Translational Bandit Task (TBT) - Response time

    This is a task variant that uses choice options (neutral images) that are rewarded probabilistically. The rewarded stimulus with the highest reward is changed over time. State learning associated with staying or switching stimuli too quickly (lose-switching) can be evaluated. Performance is assessed based on the delay between the presentation of stimuli and the selection of the response. The primary outcome will be differences in task performance before and after modafinil administration.

    Measured: Day 7 (EEG + Modafinil Appointment)

  17. Translational Bandit Task (TBT) - Reward Seeking Behavior

    This is a task variant that uses choice options (neutral images) that are rewarded probabilistically. The rewarded stimulus with the highest reward is changed over time. State learning associated with staying or switching stimuli too quickly (lose-switching) can be evaluated. Performance is assessed based on the behavior of reward seeking-whether participants "explore" to find new reward scenarios, or if they stay to "exploit" a known reward scenario. The primary outcome will be differences in reward seeking behavior before and after modafinil administration.

    Measured: Day 7 (EEG + Modafinil Appointment)

Secondary outcomes (1)
  1. Brief Psychiatric Rating Scale (BPRS) - Global Score

    Clinician-administered rating scale to assess psychiatric symptoms such as depression, anxiety, hallucinations, and unusual behavior. Scores on individual items range from 1 (not present) to 7 (extremely severe); global scores range from 24 to 168.

    Measured: Baseline

Timeline

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

  1. First posted17 Nov 2025
  2. Study start31 Oct 2025
  3. Primary completion30 Apr 2030 (estimated)
  4. Study completion30 Apr 2030 (estimated)

Resources

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 3
Primary purpose
Basic science
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
103 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07231497
Sponsor's protocol ID
STUDY00025500
Other IDs
P50MH119569
Acronym
COSTEP 1
Status last verified
Feb 2026
First submitted
21 Aug 2025
Last updated
17 Feb 2026
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
Yes: Data will be shared with the NIMH Data Archive (collection ID pending).

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Modafinil in people with Cognition and Healthy Participants, run by University of Minnesota 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 6 inclusion and 48 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: looking for participants now, as of the sponsor's last update on 17 Feb 2026. 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.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Kaylee Enevold (612-403-4585, costep1@umn.edu), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Test My Brain - Digit Symbol Coding (time frame: Baseline). The study lists 17 primary outcomes in all. 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 17 Feb 2026.

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