Please assess the completion status of the following clinical trial:

Trial Title: Augmenting Exposure Therapy With an N-Methyl-D-Aspartate (NMDA) Agonist for Panic Disorder

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

Eligibility Criteria:
Inclusion Criteria:~* Principal diagnosis of panic disorder~Exclusion Criteria:~* History of psychotic disorders or bipolar disorder~* Substance dependence~* Pregnant or breastfeeding~* History of a medical condition that may increase the risks of taking the study drug

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

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