Acute Decompensated Heart Failure Clinical Trial
Official title:
Primary Mode of Therapy in Acute Decompensated Heart Failure:Comparison Between Usual Care Plus Tolvaptan and Ultrafiltration.
For patients hospitalized with acute decompensated heart failure,volume removal remains the
primary therapeutic objective. The current standard of care remains loop diuretics.The high
likelihood of readmissions and poor outcomes highlights the need to examine and improve
in-hospital protocols for these patients. Ultrafiltration allows for greater volume removal,
less neurohormonal stimulation and greater sodium removal.However it is associated with
increased costs, line complications, and relative immobility during treatment. Tolvaptan in
addition to diuretic therapy has been shown to improve the amount of volume removed compared
to diuretic alone.
The study proposes to compare the strategy of adding tolvaptan to usual care with
ultrafiltration as primary mode of therapy in acute decompensated HF(ADHF) patients.
Hypothesis: addition of tolvaptan to usual care for hospitalized HF patients will result in:
- greater volume and weight reduction compared with usual care
- similar efficacy outcomes compared with ultrafiltration, with less complications of
therapy
Study design is a prospective randomized open labeled and unblinded comparison of two
different approaches to volume removal. Enrolled patients will be evaluated for target
weight to be removed. Patients will be randomized to usual care (UC), usual care plus
tolvaptan (UC+T) or ultrafiltration (UF), within 12 hours of presentation.
Treatment in the UC and UC+T arms will begin with a furosemide bolus(double the home dose or
if unavailable, 60mg) and continue with a drip(10 or 20 mg/hr). In addition the UC+T group
will be treated with tolvaptan 30 mg orally once daily.
Patients in the UF arm will be treated with UF administered through a brachial line or a
catheter in the internal jugular vein. Loop and thiazide diuretics will be discontinued,
although aldosterole antagonists will be continued.
Urinary neutrophil gelatinase associated lipocalcin(uNGAL)levels are elevated in renal
dysfunction and may be a sensitive biomarker to distinguish between intrinsic renal damage
and reversible, transient prerenal azotemia.Characterizing the changes in uNGAL levels
during the course of ADHF therapy, in comparison with patient weight, BUN and creatinine
levels is an important step in establishing the role of this potential promising biomarker
in ADHF treatment strategies.
Protocol highlights for all patients include:
Baseline labs and daily through day 4 and at discharge(BMP, BNP, CBC, urine creatinine and
sodium, uNGAL)
- Daily am weights
- Daily volume status:total intake, urine output, ultrafiltrate volume
- Collect all urine and ultrafiltrate in a 24 hour collection bag, record volume,
creatinine and Na levels
- length of stay
- hospital day 4: Minnesota Living with Heart Failure questionnaire
- Cost of hospitalization
;
Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment
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