Please assess the completion status of the following clinical trial:

Trial Title: ECT Pulse Amplitude and Medial Temporal Lobe Engagement

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: DOUBLE
- Phase: PHASE4
- Number of Arms: 3.0

Eligibility Criteria:
Inclusion Criteria:~1. Diagnosis of major depressive disorder (with or without psychotic features)~2. the clinical indications for ECT including treatment resistance or a need for a rapid and definitive response~3. Hamilton Depression Rating Scale 24-item (HDRS-24) \> 21~4. age range between 50 and 80 years of age~5. right-handedness~Exclusion Criteria:~1. Defined neurological or neurodegenerative disorder (e.g., history of head injury with loss of consciousness \> 5 minutes, epilepsy, Alzheimer's disease)~2. other psychiatric conditions (e.g., schizophrenia, schizoaffective disorder, bipolar disorder)~3. current drug or alcohol use disorder, except for nicotine; and 4) contraindications to MRI.

- Gender: ALL
- Minimum Age: 50 Years
- Maximum Age: 80 Years
- Healthy Volunteers: f

Study Arms:
- 600 mA Right Unilateral ECT (Type: EXPERIMENTAL): MECTA Spectrum 5000Q Amplitude
- 700 mA Right Unilateral ECT (Type: EXPERIMENTAL): MECTA Spectrum 5000Q Amplitude
- 800 mA Right Unilateral ECT (Type: ACTIVE_COMPARATOR): MECTA Spectrum 5000Q Amplitude

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