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Table 1 World Health Organization Trial Registration Data Set

From: Cognitive remediation following electroconvulsive therapy in patients with treatment resistant depression: randomized controlled trial of an intervention for relapse prevention – study protocol

Data category

Information

Primary registry and trial identifying number

Clinicaltrials.gov: NCT04383509

Date of registration in primary registry

12 May 2020

Secondary identifying numbers

NA

Source(s) of monetary or material support

King Baudouin Foundation

Ghent University

University Hospital Ghent

Primary sponsor

Ghent University

Secondary sponsor(s)

University Hospital Ghent

Contact for public queries

Dr. Nele Van de Velde, nele.vandevelde2@uzgent.be

Contact for scientific queries

Dr. Nele Van de Velde, nele.vandevelde2@uzgent.be

Public title

RCT for Electroconvulsive Treatment Followed by Cognitive Control Training (ECT-CCT)

Scientific title

Cognitive remediation following electroconvulsive therapy in patients with treatment resistant depression: randomized controlled trail of an intervention for relapse prevention – Study Protocol

Countries of recruitment

Belgium

Health condition(s) or problem(s) studied

Depressive relapse following succesful electroconvulsive treatment (ECT)

Cognitive functioning post-ECT

Intervention(s)

Active comparator:cognitive control trainingPlacebo comparator: training without focus on cognitive control

Key inclusion and exclusion criteria

• Ages eligible for study: ≥18 yearsSexes eligible for study: bothAccepts healthy volunteers: noInclusion criteria: age between 18 and 70 years old, current major depressive episode with treatment resistance, eligibility and consent for ECT treatment, ability to provide consent to study

Exclusion criteria: neurodegenerative disorder or Montreal Cognitive Assessment (MOCA) < 18, catatonia, schizophrenia, alcohol use disorder in previous year, prior ECT treatment, insufficient computer knowledge or analphabetism

Study type

InterventionalAllocation: randomizedIntervention model: parallel assignmentMasking: double blind (Participant, Outcomes Assessor)Primary purpose: treatment

Date of first enrolment

June 2020

Target sample size

88

Recruitment status

Recruiting

Primary outcome(s)

Change in severity of depressive symptoms, clinician-rated (HAM-D)

Change in severity of depressive symptoms, self-reported (BDI-II)

Change in depressive symptoms and quality of life, self-reported (RDQ)

Time Frame:1–7 days before first ECT session, 1–7 days post ECT completion, 1–7 days after intervention/placebo completion, 3 months after ECT completion, and 6 months after ECT completion

Key secondary outcomes

Subjective memory complaints (SSMQ)

Time Frame:1–7 days before first ECT session, 1–7 days post ECT completion, 1–7 days after intervention/placebo completion, 3 months after ECT completion, and 6 months after ECT completion

Quality of Life in Depression Scale (QLDS)

Time Frame:1–7 days before first ECT session, 1–7 days post ECT completion, 1–7 days after intervention/placebo completion, 3 months after ECT completion, and 6 months after ECT completion

Rumination (RRS-10)

Time Frame:1–7 days before first ECT session, 1–7 days post ECT completion, 1–7 days after intervention/placebo completion, 3 months after ECT completion, and 6 months after ECT completion

Cognition (CANTAB)

Time Frame:1–7 days before first ECT session, 1–7 days post ECT completion, 1–7 days after intervention/placebo completion, 3 months after ECT completion, and 6 months after ECT completion

Cognition (Paced Auditory Serial Addition Task - PASAT)

Time Frame:1–7 days before first ECT session, 1–7 days post ECT completion, 1–7 days after intervention/placebo completion, 3 months after ECT completion and 6 months after ECT completion

Acceptability and satisfaction: Qualitative interviews

Time Frame: 1–30 days after CCT training completion

Time to relapse

Time Frame:Up to 6 months monitoring

Facial features from video footage

Time Frame:2 weeks during CCT or placebo intervention