Please assess the completion status of the following clinical trial:

Trial Title: Treatment of REM Sleep Behavior Disorder (RBD) With Sodium Oxybate

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:~* 40-85 years old~* With or without Parkinson's disease~* Experiencing RBD episodes on average at least 2x/week or 8x/month~* Able to report RBD episodes themselves or via a partner witness~Exclusion Criteria:~* History of falls during ambulation in the last 6 months despite adequate neurologic treatment~* Requirement of an ambulatory device at home~* Inadequately treated symptomatic orthostatic hypotension~* BMI \> 35~* Untreated or uncontrolled OSA (4%AHI\>15)~* Cognitive impairment resulting in inability to comply with treatment instructions~* Pregnancy

- Gender: ALL
- Minimum Age: 40 Years
- Maximum Age: 85 Years
- Healthy Volunteers: f

Study Arms:
- Sodium Oxybate (SXB) arm (Type: ACTIVE_COMPARATOR): Sodium Oxybate (SXB) will be dispensed to the participants.
- Placebo (PBO) arm (Type: PLACEBO_COMPARATOR): Placebo will be dispensed to the participants.

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