Please assess the completion status of the following clinical trial:

Trial Title: Melatonin Supplements for Improving Sleep in Individuals With Hypertension

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: DOUBLE
- Phase: PHASE2
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~* Diagnosed with uncomplicated hypertension~* Currently being treated with Atenolol (a beta-blocker)~Exclusion Criteria:~* History of medical illness other than essential hypertension~* Personal or family history of psychiatric illness~* Current use of any medication other than anti-hypertensive drugs~* Any recent travel across time zones~* History of working various shifts on an irregular basis

- Gender: ALL
- Minimum Age: 35 Years
- Maximum Age: 65 Years
- Healthy Volunteers: f

Study Arms:
- 1 (Type: EXPERIMENTAL): Melatonin (2,5 mg, by mouth, 1 per day, for 3-4 weeks)
- 2 (Type: PLACEBO_COMPARATOR): Placebo

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