Please assess the completion status of the following clinical trial:

Trial Title: Functional and Neurochemical Correlates of Treatment Response in Major Depressive Disorder

Study Design Characteristics:
- Allocation: None
- Intervention Model: None
- Observational Model: COHORT
- Primary Purpose: None
- Time Perspective: PROSPECTIVE
- Masking: None
- Phase: None
- Number of Arms: None

Eligibility Criteria:
Inclusion Criteria:~* Aged 18-65~* Meets DSM-IV criteria for major depressive disorder~* Meets eligibility criteria for clinical trial of ziprasidone augmentation of escitalopram~* Capable of providing informed consent~Exclusion Criteria:~* Meets exclusion criteria for augmentation clinical trial protocol~* Pregnancy or unwillingness to avoid pregnancy during trial~* Current or past psychosis or bipolar disorder~* Substance abuse or dependence in the past six months~* Clinically significant suicidality~* Unstable cardiovascular, hepatic, renal, respiratory, endocrine, neurological, or hematological disease or uncontrolled seizures~* Use of a concomitant medication that acts on glutamate or GABA neurotransmission~* Contraindication to magnetic resonance imaging (metal implant or device, occupational metal exposure, significant claustrophobia)

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 65 Years
- Healthy Volunteers: f

Study Arms:
- escitalopram responders no augmentation (Type: None): Participants who show a clinical response following 8 weeks on an SSRI will have a final magnetic resonance scan at the end of 8 weeks and will complete the study at that time.
- Ziprasidone augmentation (Type: None): Participants who do not respond to escitalopram and are randomized to ziprasidone augmentation will have a final magnetic resonance scan following 8 weeks on ziprasidone.
- Placebo augmentation (Type: None): Participants who do not respond to escitalopram and are randomized to placebo augmentation will have a final magnetic resonance scan following 8 weeks on placebo.

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