Please assess the completion status of the following clinical trial:

Trial Title: Enhancing Exposure Therapy for Post Traumatic Stress Disorder (PTSD): Virtual Reality and Imaginal Exposure With a Cognitive Enhancer

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: TRIPLE
- Phase: PHASE3
- Number of Arms: 4.0

Eligibility Criteria:
Inclusion Criteria:~1. Diagnosis of OEF-OIF (Operations Enduring Freedom or Iraqi Freedom) Combat Related PTSD;~2. Female participants of childbearing potential must agree to use an effective method of birth control (i.e., oral contraceptive, Norplant, diaphragm, condom, or spermicide) during the course of the study, or to remain abstinent from sex, to ensure they do not become pregnant during the course of the study;~3. Ability to provide informed consent and function at an intellectual level sufficient to allow accurate completion of all assessment instruments;~4. Participants must be literate in English;~5. Patients must be medically healthy and willing to take the study drug;~6. VRE stimuli available must be consistent with subject's trauma.~Exclusion Criteria:~1. Lifetime or current diagnosis of schizophrenia or other psychotic disorder, bipolar disorder;~2. Participation in a clinical trial during the previous 3 months;~3. Current evidence or history of significant unstable medical illness or organic brain impairment, including stroke, CNS tumor, demyelinating disease, cardiac, pulmonary, gastrointestinal, renal or hepatic impairment;~4. Patients who in the investigator's judgment pose a current suicidal or homicidal risk;~5. Alcohol, medication, or illegal substance dependence within the past 90 days;~6. Treatment with any other concomitant medication with primarily CNS activity, or treatment with any medication that the PI judges not acceptable for this study;~7. history of seizures;~8. Pregnancy or lactation.

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

Study Arms:
- Placebo + Prolonged Imaginal Exposure (Type: PLACEBO_COMPARATOR): Drug: Placebo (sugar pill) + Prolonged Imaginal Exposure (PE) PTSD treatment
- Placebo + VR exposure (Type: PLACEBO_COMPARATOR): Drug: Placebo (sugar pill) + Virtual Reality Exposure (VR) PTSD treatment
- DCS + Prolonged Imaginal Exposure (Type: ACTIVE_COMPARATOR): Drug: 50mg DCS (D-Cycloserine ) + Prolonged Imaginal Exposure (PE) PTSD treatment
- DCS+VR exposure (Type: ACTIVE_COMPARATOR): Drug: 50mg DCS (D-Cycloserine ) + Virtual Reality Exposure (VR) PTSD treatment

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