Please assess the completion status of the following clinical trial:

Trial Title: Cognitive Behavioral Therapy to Increase CPAP Adherence in Veterans With PTSD

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

Eligibility Criteria:
Inclusion Criteria:~* Male or Female Veterans of any racial or ethnic group~* Age 18 years old and older~* OSA diagnosis by a board-certified Sleep Medicine physician~* Have PTSD~* Capable of giving informed consent for the study; able to read and write English; willing and able to comply with study requirements and restrictions~* Not have a cognitive disorder~* Sufficient visual and auditory acuity for cognitive testing~* No new medication(s) within the prior 1 month. If on a non-excluded medication for a non-excluded condition, the medication regimen will be stable (no changes in dose) for at least 1 month prior to baseline (including anti-hypertensive and diabetic medications).~Exclusion Criteria:~Sleep~* Current CPAP usage, home oxygen therapy, tracheotomy or past corrective surgery for OSA (e.g., uvulopalatopharyngo-plasty, midline glossectomy, or lingualplasty).~* Diagnosis of Central Sleep Apnea (CSA)~* Comorbid sleep disorder~* Working night, rotating or split \[period of work, followed by break, and then return to work\]; shift work within 1-month of screening or plan to work these shifts during study; Occupations where participants regularly experience jet lag or have irregular work schedules.~Other Medical~* Unstable or moderate to severe chronic illness including systolic congestive heart failure, uncontrolled asthma, severe liver disease, end stage renal disease requiring hemodialysis or history of systemic illness affecting central nervous system (CNS) function (e.g. liver failure, kidney failure, congestive heart failure, systemic cancer).~* Any current clinically significant cardiovascular, respiratory, neurologic, hepatic, hematopoietic, renal, gastrointestinal or metabolic dysfunction unless currently controlled and stable. Any solid organ transplantation.~* Known or suspected neuromuscular disease (e.g. amyotrophic lateral sclerosis, spinal cord injury)~* History of head injury within past year, or history of loss of consciousness \> 24 hours~* History of other neurological disease~* Certain medications~* Judged by the investigators to be unable or unlikely to follow the study protocol.~Psychiatric~* Primary psychotic disorder~* Bipolar disorder~* Prominent suicidal or homicidal ideation~* Current exposure to trauma, or exposure to trauma in the past 3 months~* Some substance use~* Presence of acute or unstable psychiatric condition(s) that requires referral for treatment.~* Current or expected cognitive behavior therapy for another condition (e.g. insomnia, anxiety).~Other~* A clinical history or participation in other research that would interfere with the objectives of this study.~* Any other medical, social, or geographical factor that would make it unlikely that the participant would comply with the study procedures.

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 99 Years
- Healthy Volunteers: t

Study Arms:
- CBT-OSA (Type: EXPERIMENTAL): CBT-OSA is a new cognitive behavioral therapy which focuses on changing behaviors and thoughts to help individuals adjust to using a CPAP machine.
- Sleep Education (Type: ACTIVE_COMPARATOR): The Sleep Education treatment will include information, facts, and videos on sleep, cardiovascular disease, PTSD, and proper sleep hygiene.

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

Answer: outcome: complete