Please assess the completion status of the following clinical trial:

Trial Title: Effect of Ivabradine on Patients With Postural Orthostatic Tachycardia Syndrome

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: CROSSOVER
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: QUADRUPLE
- Phase: PHASE3
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~* Subjects aged 18-65.~* Subjects must have POTS diagnosis (Hyperadrenergic Subtype with NE\> 600pg/ml))~* Subjects with no structural heart disease~* Subject with no arrhythmias~* Subjects with norepinephrine levels greater than 600 pg/ml~* Subjects with normal CBC, Metabolic, and thyroid levels~Exclusion Criteria:~* Thyroid or adrenal disorders~* Drugs that interfere with Ivabradine (example: Cytochrome P450 drugs)~* Presentation of peripheral edema and discolored toes with peripheral autonomic neuropathy. Symptoms include: legs (reduced hair growth, cramps), toes (blue color), legs/feet (wounds, ulcers that do not heal), and muscles (numbness, heaviness)~* Subjects who have had a history of systemic illnesses (acute or chronic infectious); autoimmune/ inflammatory disease, cancer, COPD, anemia, diabetes, or psychiatric illness~* Subjects with resting heart rate\< 60beats/min, atrial fibrillation, advanced AV blocks, sinus disease, and acute decompensated heart failure and severe hepatic impairment.~* Smokers or alcohol abuse~* Pregnant or breastfeeding mothers~* Woman of childbearing potential who are unwilling to use highly effective contraception during treatment and for an additional one month after discontinuing the study drug

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 65 Years
- Healthy Volunteers: f

Study Arms:
- Placebo (Type: PLACEBO_COMPARATOR): Patient will consume one placebo pill twice a day for one month.
- Ivabradine (Type: EXPERIMENTAL): Patient will consume one dose of Ivabradine twice a day for one month.

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