Please assess the completion status of the following clinical trial:

Trial Title: Molecular Mechanisms of Volume Overload-Aim 1(SCCOR in Cardiac Dysfunction and Disease)

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: TRIPLE
- Phase: PHASE2/PHASE3
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:Patients who have Moderate MR documented by color flow doppler:~1. LV ejection fraction \> 55%; LV end-systolic dimension \< 4.0 cm.~2. Quantifiable by Doppler-Echo equal or more than moderate in severity.~3. Organic disease of the mitral valve demonstrated by echocardiography (not normal valve as in functional or ischemic MR).~4. Isolated MR (no valve disease other than mild tricuspid or pulmonic regurgitation by Doppler-Echocardiography that is often associated with mitral valve prolapse).~5. Asymptomatic (or mildly symptomatic but not considered as candidates for immediate surgery by their attending physician).~Exclusion Criteria:~1. Significant obstructive coronary artery disease and/or myocardial ischemia on graded exercise test with myocardial perfusion.~2. Previous myocardial infarction or percutaneous coronary intervention.~3. Hypertrophic cardiomyopathy, congenital or pericardial disease.~4. Aortic valve disease (\> trace aortic regurgitation or mean gradient \> 10 mmHg).~5. Mitral stenosis (mean gradient \>5 mmHg, valve area \< 1.5 cm2).~6. Intolerance or contraindication to Beta1-AR blockade.~7. Renal failure with creatinine \> 2.5 mg/dl.~8. Hypertension requiring medical treatment or renal artery stenosis.~9. Severe comorbidity: liver disease, malignancy, collagen vascular, steroid requirement.~10. Pregnancy (negative pregnancy test and effective contraceptive methods are required prior to enrollment of females of childbearing potential).~11. Uncontrolled (rate \> 120/min) or recent (\<4 weeks) atrial fibrillation.~12. Routine, regular use of anti-inflammatory medications.~Exclusion Criteria Related to MRI~1. Severe claustrophobia.~2. Presence of a pacemaker or non-removable hearing aid.~3. Presence of metal clips in the body.

- Gender: ALL
- Minimum Age: 19 Years
- Maximum Age: 70 Years
- Healthy Volunteers: t

Study Arms:
- Toprol XL (Type: ACTIVE_COMPARATOR): beta 1 receptor blockade; generic name metoprolol succinate
- Placebo (Type: PLACEBO_COMPARATOR): Pill that looks like Toprol XL but does not have the active ingredients

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