Please assess the completion status of the following clinical trial:

Trial Title: Ondansetron in Treatment Resistant Obsessive Compulsive Disorder (OCD)

Study Design Characteristics:
- Allocation: NON_RANDOMIZED
- Intervention Model: SINGLE_GROUP
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: SINGLE
- Phase: PHASE4
- Number of Arms: 1.0

Eligibility Criteria:
Inclusion Criteria:~1. adults aged 18 to 55~2. a Yale-Brown Obsessive-Compulsive Scale (Y-BOCS) score of ≥ 20 after ≥ 12 weeks of treatment with an established effective dose of an Selective Serotonin Reuptake Inhibitors or clomipramine and after ≥ 10 weeks of augmentation treatment with antipsychotics (risperidone at least 2 mg/day quetiapine at least 150 mg/day; olanzapine at least 5mg/day; haloperidol titrated at least 10 mg/day; aripiprazole at least 10 mg/day)~Exclusion Criteria:~1. a history of alcohol or substance abuse~2. current severe depressive symptoms, bipolar disorder, panic disorder, schizophrenia, or other psychiatric conditions~3. heart disease, arrhythmia, liver problems, including cirrhosis, seizures, glaucoma or serious medical disease~4. hoarding as only Obsessive Compulsive symptom~5. women of childbearing potential not using a medically acceptable contraceptive method.

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 55 Years
- Healthy Volunteers: f

Study Arms:
- ondansetron (Type: EXPERIMENTAL): None

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