To investigate the effectiveness of three (3) IV diuretic regimens to increase natriuresis in volume-overloaded HF patients, allowing for better decongestion and potentially resulting in improved clinical and biochemical parameters outcome.
The study will assess the efficacy and safety of three (3) different clinically prevailing diuretic regimens. All three regimens are based on furosemide, as mentioned above- a 1st line HF GL2,3 recommended and MOH registered 7 for fluid decongestion, and the two adjuvants medications are also approved as diuretics in HF patients. Better natriuresis will lead to better decongestion in CHF patients with volume overload. It is expected that the better natriuresis will lead to better decongestion, and improvement in favorable markers parameters such as NT pro BNP. The trial will investigate treatment regimens, readily available, clinically approved ("on-label" in Israel), which can be very easily administered, through an IV infusion or IV and PO administration without additional extra testing or invasive monitoring. The setting is in an established dedicated HF day-care unit at the cardiology department of Rambam Health Campus (RMC)- a tertiary referral academic center. The knowledge gathered in this study, could be easily adopted by every clinic or hospital in a quick manner with considerable cost-savings with regards to health care expenditure. Importantly, this study will examine which application of existing decongestive therapies (not novel drugs), based on strong scientific reasoning, will result in a better outcome for patients. Therefore, data from the study will provide information regarding the safety and efficacy of diuretic treatment in the above-mentioned patient population. The study intends to be a real-life study, in the manner of: 1. Conducted in an established, protocol-operated setting 2. Essential only recruitment restrictions 3. Without any additional testing to the day care standard of care 4. Have minimal or no additional expected risk for the patient (comparison between standard diuretic regimens) 5. Have very clinically meaningful endpoints. Therefore, this study should be considered a 'Low-intervention clinical trial' as: 1. The investigational medicinal products, which are used in clinical practice and approved, have a very low-risk profile and are well-known to general cardiologists and internists worldwide. 2. According to the protocol of the clinical trial, all investigational medicinal products will be used in accordance with EU and US marketing approval according to published guidelines. Note: from commercial and supply chain reasons oral metolazone and IV acetazolamide are imported by medical institutions in Israel by means of group "29 gimel" form. Both are FDA and EU labeled for HF treatment. 3. No additional diagnostic or monitoring procedures are asked. Hence, minimal additional risk or burden to the safety of the subjects compared to normal clinical practice.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
42
Given over 4-hour drip using IV pump, 40mg of the 250mg will be given as a bolus
Given over 4-hour drip using IV pump, 40mg of the 250mg will be given as a bolus +5mg PO Metolazone
Furosemide would be given over 4-hour drip using IV pump, 40mg of the 250mg will be given as a bolus. 500mg IV Acetazolamide would be given in 100cc of saline over half an hour
Rambam MC
Haifa, Israel
Sodium weight
Na Weight (Spot Na \* total volume of urine)
Time frame: 1st week visit (time zero)
Sodium weight
Na Weight (Spot Na \* total volume of urine)
Time frame: 1 week after 1st visit
Sodium weight
Na Weight (Spot Na \* total volume of urine)
Time frame: 2 weeks after 1st visit
Urine Volume
Total urinary volume starting from initiation of intravenous (IV) therapy for 6 hours
Time frame: 1st week visit (time zero)
Urine Volume
Total urinary volume starting from initiation of intravenous (IV) therapy for 6 hours
Time frame: 1 week after 1st visit
Urine Volume
Total urinary volume starting from initiation of intravenous (IV) therapy for 6 hours
Time frame: 2 weeks after 1st visit
Rate of symptomatic hypotension events
Systolic BP \<90mmhg with symptoms
Time frame: A week after 1st visit
Rate of symptomatic hypotension events
Systolic BP \<90mmhg with symptoms
Time frame: 2 weeks after 1st visit
Rate of symptomatic hypotension events
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Systolic BP \<90mmhg with symptoms
Time frame: 3 weeks after 1st visit
rate of worsening renal function events
WRF defined as a \>0.3 mg/dL increase in serum Cr, or a \>20% decrease in eGFR by the CKDEPI formula
Time frame: A week after 1st visit
rate of worsening renal function events
WRF defined as a \>0.3 mg/dL increase in serum Cr, or a \>20% decrease in eGFR by the CKDEPI formula
Time frame: 2 weeks After 1st visit
rate of worsening renal function events
WRF defined as a \>0.3 mg/dL increase in serum Cr, or a \>20% decrease in eGFR by the CKDEPI formula
Time frame: 3 weeks after 1st visit
Rate of hyponatremia during treatment phase
Hyponatremia \<133mmol/dl
Time frame: A week after 1st visit
Rate of hyponatremia during treatment phase
Hyponatremia \<133mmol/dl
Time frame: 2 weeks after 1st visit
Rate of hyponatremia during treatment phase
Hyponatremia \<133mmol/dl
Time frame: 3 weeks after 1st visit
Rate of dyskalemia events during treatment phase
Dyskalemia defined as \<3.5 or \>5.6mmol/dl
Time frame: A week after 1st visit
Rate of dyskalemia events during treatment phase
Dyskalemia defined as \<3.5 or \>5.6mmol/dl
Time frame: 2 weeks after 1st visit
Rate of dyskalemia events during treatment phase
Dyskalemia defined as \<3.5 or \>5.6mmol/dl
Time frame: 3 weeks after 1st visit
Rate of metabolic acidosis events requiring NaHCO3 supplements
Rate of Metabolic acidosis (requiring NaHCO3 supplements) events
Time frame: A week after 1st visit
Rate of metabolic acidosis events requiring NaHCO3 supplements
Rate of Metabolic acidosis (requiring NaHCO3 supplements) events
Time frame: 2 weeks after 1st visit
Rate of metabolic acidosis events requiring NaHCO3 supplements
Rate of Metabolic acidosis (requiring NaHCO3 supplements) events
Time frame: 3 weeks after 1st visit