Please assess the completion status of the following clinical trial:

Trial Title: Acute Effects of Inorganic Nitrite on Cardiovascular Hemodynamics in Heart Failure With Preserved Ejection Fraction

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:~* Scheduled to undergo a cardiac catheterization procedure.~* Clinical symptoms of shortness of breath and fatigue~* Normal left ventricular ejection fraction (≥50%)~* Elevated left ventricular filling pressures at cardiac catheterization (defined as resting pulmonary capillary wedge pressure (PCWP)\>15 mmHg and/or PCWP≥25 mmHg during exercise)~Exclusion Criteria:~* Systolic BP \<120 mmHg~* Prior nitrate therapy (within previous 2 weeks)~* Glucose 6-phosphate dehydrogenase (G6PD) deficiency~* Other non-HFpEF specific causes of heart failure such as significant valvular disease (\>moderate left-sided regurgitation, \>mild stenosis), severe pulmonary disease, unstable coronary disease or coronary spasm, primary renal or hepatic disease, constrictive pericarditis, or infiltrative, restrictive, or hypertrophic cardiomyopathies

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: None
- Healthy Volunteers: f

Study Arms:
- Nitrite (Type: EXPERIMENTAL): Study drug (NaNO_2 50 mcg/kg/min) will be infused for 5 minutes during the cardiac catheterization procedure.
- Saline (Type: PLACEBO_COMPARATOR): Saline Placebo for Nitrite will be infused for 5 minutes during the cardiac catheterization procedure.

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