Please assess the completion status of the following clinical trial:

Trial Title: Brain Markers of Treatment Response in Post-Traumatic Stress Disorder (PTSD)

Study Design Characteristics:
- Allocation: NON_RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: BASIC_SCIENCE
- Time Perspective: None
- Masking: NONE
- Phase: PHASE4
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~* Veterans with clinical diagnosis of post-traumatic stress disorder from combat related to deployment to Afghanistan/Iraq (Operation Enduring Freedom/Operation Iraqi Freedom)~Exclusion Criteria:~* Intolerance or sensitivity to paroxetine~* Major medical or neurologic illness~* Current psychotropic medication or active psychotherapy treatment~* Other major psychiatric illness

- Gender: ALL
- Minimum Age: 21 Years
- Maximum Age: 55 Years
- Healthy Volunteers: t

Study Arms:
- Arm 1 (Type: OTHER): Intervention-Paroxetine
- Arm 2 (Type: NO_INTERVENTION): No Intervention

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