Please assess the completion status of the following clinical trial:

Trial Title: Electroconvulsive Treatment Followed by Cognitive Control Training

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: DOUBLE
- Phase: None
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~* aged 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

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 70 Years
- Healthy Volunteers: f

Study Arms:
- Cognitive control training (Type: EXPERIMENTAL): Cognitive Control Training (CCT) makes use of a very basic cognitive task that strongly loads on working memory and cognitive control processes, namely the adaptive Paced Auditory Serial Addition Task (aPASAT) where participants are given a number every 3 seconds and are asked to add the number they just heard with the number they heard before. Task difficulty is modified based on the participants current task performance, allowing training of cognitive control. Participants in the intervention group will start the CCT training after completion of ECT with a maximum time interval of 7 days. Training sessions will be performed on a tablet or computer and participants will complete five sessions per week (20 minutes per session) for a period of two weeks.
- Active Control (Type: ACTIVE_COMPARATOR): Participants in the active control group will start placebo training after completion of ECT with a maximum time interval of 7 days. The placebo task consists of a task similar to the experimental condition but that does not train cognitive control. Prior research confirmed that this condition controls for non-specific effects of the training and motivational issues. Participants will perform the sessions on a tablet or computer and complete five sessions per week (20 minutes per session) for a period of two weeks.

Based on this trial design, predict the completion outcome and termination type (if applicable).