Please assess the completion status of the following clinical trial:

Trial Title: Combination Treatment for Posttraumatic Stress Disorder (PTSD) After the World Trade Center (WTC) Attack

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: QUADRUPLE
- Phase: PHASE4
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~* Posttraumatic Stress Disorder, chronic, related to World Trade Center Attacks~* Age 18-70~* CAPS score greater than 45~* Willingness to consent~* For women, negative pregnancy test and using adequate birth control~Exclusion Criteria:~* Prominent suicidal ideation~* Current psychotic disorder~* Unstable medical illness~* Women who are pregnant or nursing mothers~* Alcohol or substance use disorder in the past 3 months~* History of seizure disorder~* conditions that contraindicate use of paroxetine~* inability to tolerate a drug free period prior to beginning the study of 4 weeks for MAOIs or fluoxetine and 2 weeks for other psychotropic drugs, except zolpidem for insomnia.

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 70 Years
- Healthy Volunteers: f

Study Arms:
- Paroxetine (Type: EXPERIMENTAL): Paroxetine and Prolonged Exposure Therapy
- Placebo pill (Type: PLACEBO_COMPARATOR): Placebo pill plus Prolonged Exposure Therapy

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