NCT05166798

Brief Summary

This study aims to examine the dose-response relationship of an online adaptive cognitive control training on depressive symptomatology and rumination. Participants will be randomized over six groups, each receiving a different dose (0, 1, 5, 10, 15 or 20 sessions) of a cognitive control training in remitted depressed patients. An adaptive Paced Auditory Serial Addition Task will be used as cognitive control training.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
216

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Feb 2022

Typical duration for not_applicable

Geographic Reach
1 country

2 active sites

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

First Submitted

Initial submission to the registry

November 10, 2021

Completed
1 month until next milestone

First Posted

Study publicly available on registry

December 22, 2021

Completed
1 month until next milestone

Study Start

First participant enrolled

February 1, 2022

Completed
1.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 22, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

November 22, 2023

Completed
Last Updated

January 3, 2024

Status Verified

January 1, 2024

Enrollment Period

1.8 years

First QC Date

November 10, 2021

Last Update Submit

January 2, 2024

Conditions

Keywords

DepressionRemissionRelapse preventionCognitive control trainingInternet intervention

Outcome Measures

Primary Outcomes (1)

  • Change in Beck Depression Inventory (BDI-II-NL)

    Self-report questionnaire with 21 items, depression symptom severity, scores can range from 0 to 63, with higher scores indicating more severe depression.

    baseline, post training (one month after baseline), 3 month follow-up after baseline, 6 month follow-up after baseline

Secondary Outcomes (7)

  • Change in Perseverative Thinking Questionnaire (PTQ-NL)

    baseline, post training (one month after baseline), 3 month follow-up after baseline, 6 month follow-up after baseline

  • Change in Cognitive Emotion Regulation Questionnaire (CERQ)

    baseline, post training (one month after baseline), 3 month follow-up after baseline, 6 month follow-up after baseline

  • Change in Adult Temperament Questionnaire (ATQ), Effortful Control subscale

    baseline, post training (one month after baseline), 3 month follow-up after baseline, 6 month follow-up after baseline

  • Change in Burnout Assessment Tool (BAT)

    baseline, post training (one month after baseline), 3 month follow-up after baseline, 6 month follow-up after baseline

  • Change in Remission from Depression Questionnaire (RDQ-NL)

    baseline, post training (one month after baseline), 3 month follow-up after baseline, 6 month follow-up after baseline

  • +2 more secondary outcomes

Other Outcomes (2)

  • Change in List of Threatening Experiences (LTE-Q)

    3 month follow-up after baseline, 6 month follow-up after baseline

  • Change in Credibility and Expectancy Questionnaire (CEQ)

    baseline, post training (one month after baseline)

Study Arms (2)

Intervention group

EXPERIMENTAL

Cognitive control training: The adaptive Paced Auditory Serial Addition Task (aPASAT) is a Cognitive Control Training where participants need to click on the sum of the last two heard digits. Task difficulty is modified based on the participants' current task performance, allowing training of cognitive control. Five intervention groups will each receive a different amount of sessions.

Behavioral: Cognitive control training

Control group

NO INTERVENTION

Waitlist control group: Participants randomized to the control group will not perform the cognitive control training during the study, but will be given the opportunity to follow the training afterwards.

Interventions

The five intervention groups will receive either 1, 5, 10, 15 or 20 training sessions with the Adaptive Paced Auditory Serial Addition Task (aPASAT).

Intervention group

Eligibility Criteria

Age18 Years - 65 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • History of ≥ 1 depressive episode(s)
  • Currently in remission (≥ 3 months)
  • Access to a computer with an internet connection

You may not qualify if:

  • Ongoing depressive episode
  • Psychotic disorder (current and/or previous)
  • Neurological impairments (current and/or previous)
  • Excessive substance abuse (current and/or previous)
  • Use of antidepressant medication is allowed if kept at a constant level

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Ghent University Hospital

Ghent, Oost-Vlaanderen, 9000, Belgium

Location

Ghent University

Ghent, Oost-Vlaanderen, 9000, Belgium

Location

Related Publications (2)

  • Vander Zwalmen Y, Demeester D, Hoorelbeke K, Verhaeghe N, Baeken C, Koster EHW. The more, the merrier? Establishing a dose-response relationship for the effects of cognitive control training on depressive symptomatology. J Consult Clin Psychol. 2025 Mar;93(3):161-175. doi: 10.1037/ccp0000945.

  • Vander Zwalmen Y, Hoorelbeke K, Demeester D, Koster EHW. High-Frequency Cognitive Control Training for Depression: Case Report. JMIR Form Res. 2024 Nov 29;8:e56598. doi: 10.2196/56598.

MeSH Terms

Conditions

Depression

Condition Hierarchy (Ancestors)

Behavioral SymptomsBehavior

Study Officials

  • Ernst Koster, Professor

    University Ghent

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

November 10, 2021

First Posted

December 22, 2021

Study Start

February 1, 2022

Primary Completion

November 22, 2023

Study Completion

November 22, 2023

Last Updated

January 3, 2024

Record last verified: 2024-01

Data Sharing

IPD Sharing
Will share

Pseudonymized individual participant data can be stored on Open-Science Framework (OSF).

Shared Documents
ANALYTIC CODE

Locations