Please assess the completion status of the following clinical trial:

Trial Title: Intranasal Esketamine to Maintain the Antidepressant Response to IV Racemic Ketamine

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

Eligibility Criteria:
Inclusion Criteria:~Diagnosis of major depression, recurrent, severe without psychotic symptoms according to criteria in the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-V). Must be diagnosed with Treatment resistant depression.~18 years old and up Patients had a clinically meaningful response to a course of IV racemic ketamine~Exclusion Criteria:~Active substance abuse, psychosis, significant medical comorbidities, or axis II diagnosis that would interfere with the reliability of outcome measures or response to pharmacotherapy.

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: None
- Healthy Volunteers: t

Study Arms:
- Treatment resistant depressed outpatients (Type: None): Subjects had a clinically meaningful response to IV racemic ketamine and remained on other psychotropic medications during treatment with both IV ketamine and IN esketamine. Concomitant medication classes included CNS stimulants (n = 7), atypical antipsychotics (n = 6), selective serotonin reuptake inhibitors (n = 5), serotonin/norepinephrine reuptake inhibitors (n = 4), anticonvulsants (n = 3), antipsychotics (n = 3), mood stabilizers (n = 3), benzodiazepines (n = 2), norepinephrine/dopamine reuptake inhibitors (n = 2), alpha 2 antagonists (n=1), and sedative hypnotics (n = 1). Two patients (20%) previously underwent ECT with partial but transient relief from depressive symptoms, two (20%) failed TMS, and no patients reported any period of greater than 50% improvement during their current depressive episode prior to ketamine treatment.

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