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Trial · NCT01973335

Registered outcomes21

Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.

ListOutcomeTime frameDescription
PrimaryAcetazolamide Arm: Natriuresis 24 h24h
For the acetazolamide arm of the study, the primary end-point is total natriuresis after 24 h (mmol). To assess this, urine is collected for 24 h after the first administration of diuretics according to the study protocol and natriuresis is calculated as the total amount of diuresis (L) multiplied by the urinary sodium concentration (mmol/L). Subsequently, patients receiving acetazolamide and low-dose loop diuretics (both the groups with and without upfront spironolactone together) are compared to patients not receiving acetazolamide but high-dose loop diuretics instead (both the groups with or without upfront spironolactone together)
PrimarySpironolactone Arm: Incidence of Hypo- (Serum Potassium <3.5 mmol/L) or Hyperkalemia (Serum Potassium >5.0 mmol/L)72h
For the spironolactone arm of the study, the primary end-point is the incidence of either hypo- (serum potassium \<3.5 mmol/L) or hyperkalemia (serum potassium \>5.0 mmol/L) at any of 3 morning blood samples at consecutive days after randomization. Patients receiving upfront spironolactone (both the group receiving acetazolamide+low dose loop diuretics and the group receiving high-dose loop diuretic therapy) are compared with them receiving no spironolactone (both the group receiving acetazolamide+low dose loop diuretics and the group receiving high-dose loop diuretic therapy).
SecondaryNT-proBNP Change After 72 h72hRelative NT-proBNP change (%) after 72 h compared to baseline.
SecondaryNumber of Participants With Worsening Renal Function72h
Worsening renal function is defined as a rise in serum creatine \>0.3 mg/dL or a \>20% decrease in estimated glomerular filtration rate by the Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) formula compared to baseline at any time point before 72 h. Serum creatinine values are assessed at three consecutive mornings after study inclusion.
SecondaryPersistent Renal Impairment4 weeks after hospital discharge
Persistent renal impairment is defined as a persistently elevated serum creatine \>0.3mg/dL or \>20% decrease in estimated glomerular filtration rate by the Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) formula, above the baseline value of the patient and will be assessed on a scheduled follow-up appointment 4 weeks after hospital discharge.
SecondaryPeak Plasma Aldosterone Concentration After 72 h72h
At three consecutive mornings after study inclusion, blood samples will be taken to assess plasma aldosterone levels. The highest value will constitute the peak plasma aldosterone concentration (ng/L).
SecondaryPeak Plasma Renin Activity After 72 h72hAt three consecutive mornings after study inclusion, blood samples will be taken to assess plasma renin activity. The highest value will constitute the peak plasma renin activity (ng/mL/h).
OtherNatriuresis 48 h48hTotal natriuresis (mmol) after 48 h.
OtherNatriuresis 72 h72hTotal natriuresis (mmol) after 72 h.
OtherDiuresis 24 h24hTotal amount of urine output (L) after 24 h.
OtherDiuresis 48 h48hTotal amount of urine output (L) after 48 h.
OtherDiuresis 72 h72hTotal amount of urine output (L) after 72 h.
OtherWeight Change After 72 h72hBody weight change after 72 h compared to admission.
OtherVisual Analogue Scale Score for Dyspnea After 24 h24h
Scale name and construct: Visual analogue scale presented as a line with a movable indicator. Far left of the line indicates no dyspnea at all and far right of the line indicates the worst imaginable dyspnea. The participant can move the indicator to one certain point among the line and the investigator can read at the back a number going from 0 to 100 with 0 indicating no dyspnea and 100 the worst imaginable dyspnea.
OtherVisual Analogue Scale Score for Dyspnea After 48 h48h
OtherVisual Analogue Scale Score for Dyspnea After 72 h72h
Other4-point Likert Scale for Edema After 24 h24h
Other4-point Likert Scale for Edema After 48 h48h
Other4-point Likert Scale for Edema After 72 h72h
OtherIncidence of Therapy-refractory Congestion72hNeed for combinational diuretic therapy with thiazide-type diuretics, bail-out ultrafiltration or renal replacement therapy

Source ClinicalTrials.govtrials-2026-11-12-0.5.0

Sources 3

  • ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
  • ClinicalTrials.govNo license stated
  • NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
  • ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
  • ClinicalTrials.govnone stated
  • NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)

ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.

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