Brain Function and Cognitive Control Training in Children With Obsessive-Compulsive Symptoms (AKILI - OCS)

September 18, 2026 updated by: Dana Diaz, Columbia University

The goal of this clinical trial is to learn about brain function and cognition in children ages 8-12 who have subclinical obsessive-compulsive symptoms (OCS), such as unwanted thoughts or repetitive behaviors. The study will also examine whether patterns of brain activity are related to how children respond to cognitive training.

The main questions this study aims to answer are:

  • Are there different patterns of brain activity related to cognitive control among children with OCS?
  • Are these patterns related to differences in OCS or cognition?
  • Can brain activity before training help predict changes in cognitive control or OCS severity after cognitive training?

Participants will:

  • Complete clinical interviews, questionnaires, and tests of cognition.
  • Have a magnetic resonance imaging scan while completing a cognitive control task.
  • Complete video-game-based cognitive training on an iPad for about 25 minutes a day, 5 days a week, for 4 weeks.
  • Complete another set of clinical interviews and questionnaires after the training.

Study Overview

Status

Not yet recruiting

Intervention / Treatment

Study Type

Interventional

Enrollment (Estimated)

60

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 Contact

Study Locations

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

8 years to 12 years (Child)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Age 8 to 12 years at the time of consent (i.e., 8.00 - 12.99 years).
  • Will have definite obsession(s) and/or compulsion(s)
  • NO current or lifetime history of meeting DSM-5 criterion B for OCD.
  • Not on psychotropic medication (either treatment-naïve or free of psychotropic medication for at least one month) or on stable medication regime for ADHD (e.g., stimulants).
  • Capacity to provide written informed assent by the participants and permission by the parent/guardian.

Exclusion Criteria:

  • DSM-5 current major depressive disorder.
  • DSM-5 current or lifetime diagnosis of OCD, PTSD, substance/alcohol abuse, psychotic disorder, bipolar disorder, eating disorder, pervasive developmental disorder.
  • Current or lifetime history of a major medical or neurological problem (e.g., unstable hypertension, seizure disorder, major head trauma).
  • Active suicidal ideation with some intent to act.
  • Presence of metallic device (ferromagnetic implants or dental braces).
  • Females who are pregnant or nursing.
  • Wechsler Abbreviated Scale of Intelligence II Full-scale IQ <80.

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: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Cognitive Training for Subclinical Obsessive-Compulsive Symptoms

This is an open-label, one-arm study. Children who have subclinical obsessive-compulsive symptoms (CY-BOCS score 1-12) will complete 4-weeks of at-home cognitive training.

Digital, at-home cognitive training program (AKL-T01) delivered on iPad (25 minutes/day, 5 days/week) for 4 weeks. Styled as a child-friendly video game, AKL-T01 cognitive training taps skills like focused attention, response inhibition, and working memory using a series of games with individually titrated difficulty to engage cognitive control processes.

Other Names:
  • AKL-T01
  • Akili

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
NIH Toolbox Cognition Battery
Time Frame: Baseline, post-cognitive training (4 weeks)

Standardized Fluid Cognition Composite Score derived from the NIH Toolbox Cognition Battery. Scores are norm-referenced with a mean of 100 and standard deviation of 15; higher scores indicate better cognitive functioning.

Baseline, post-cognitive training (4 weeks)

Collaborators and Investigators

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

Investigators

  • Principal Investigator: Dana Diaz, PhD, Columbia University

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 (Estimated)

October 15, 2026

Primary Completion (Estimated)

June 30, 2030

Study Completion (Estimated)

June 30, 2030

Study Registration Dates

First Submitted

September 18, 2026

First Submitted That Met QC Criteria

September 18, 2026

First Posted (Actual)

September 24, 2026

Study Record Updates

Last Update Posted (Actual)

September 24, 2026

Last Update Submitted That Met QC Criteria

September 18, 2026

Last Verified

September 1, 2026

More Information

Terms related to this study

Other Study ID Numbers

  • ACYY1655
  • 1K01MH141273-01A1 (U.S. NIH Grant/Contract)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

Yes

product manufactured in and exported from the U.S.

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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