Clinical research in cardiology : official journal of the German Cardiac Society · 2026
ADA-HF: acetazolamide as a chloride sparing diuretic in patients admitted to hospital with heart failure.
СтатьяРандомизированное исследованиеНазвание и аннотация: Перевод в очереди
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Cuthbert J J, Luo E, Ahmed A S M, Ajith M, Butt H, Pinhol H, Baffour Korsah F, Bulemfu J, Ford S, Constable G, Cox L, Rigby A S, Clark A L
Аннотация
BACKGROUND: We assessed whether oral acetazolamide (ACZ) increases diuresis and reduces chloride loss when given alongside high-dose intravenous (IV) furosemide in patients admitted to hospital with HF.
METHODS AND RESULTS: ADA-HF was a single-centre, open-label, randomised controlled trial. Patients were randomised to ACZ 250 mg twice daily plus high-dose (240 mg per day) IV furosemide infusion (standard of care (SoC)) versus SoC alone for 4 days. The co-primary endpoints were (1) daily net fluid loss between baseline and day 4 and (2) change in serum chloride level from baseline to day 4. A total of 46 patients (median age, 76; 65% male; median N-terminal pro-B-type natriuretic peptide, 4097 ng/L) from a screened population of 207 were randomised (23 to ACZ, 23 to SoC). The median daily net fluid loss was 1073 mL (1st-3rd quartile range 682-1419 mL) in the ACZ arm vs. 1029 mL (201-1432 mL) in the SoC arm (P = 0.51). There was no change in serum chloride concentration in the ACZ arm, whereas chloride fell by 7 (2-10) mmol/L in the SoC arm (P < 0.001). The number of adverse and serious adverse events ((S)AE) was numerically greater in the ACZ arm (51 events in 16 patients vs. 29 events in 10 patients, P = 0.24). Overall, 8 patients (30%) experienced (S)AEs possibly related to ACZ, and two of whom withdrew from the trial.
CONCLUSIONS: Acetazolamide has a significant "chloride-sparing" effect in patients given high-dose IV furosemide. However, ACZ did not significantly increase diuresis, and side effects from oral ACZ were frequent.
TRIAL REGISTRATION: ISRCTN13060336; 9/2/2023.
METHODS AND RESULTS: ADA-HF was a single-centre, open-label, randomised controlled trial. Patients were randomised to ACZ 250 mg twice daily plus high-dose (240 mg per day) IV furosemide infusion (standard of care (SoC)) versus SoC alone for 4 days. The co-primary endpoints were (1) daily net fluid loss between baseline and day 4 and (2) change in serum chloride level from baseline to day 4. A total of 46 patients (median age, 76; 65% male; median N-terminal pro-B-type natriuretic peptide, 4097 ng/L) from a screened population of 207 were randomised (23 to ACZ, 23 to SoC). The median daily net fluid loss was 1073 mL (1st-3rd quartile range 682-1419 mL) in the ACZ arm vs. 1029 mL (201-1432 mL) in the SoC arm (P = 0.51). There was no change in serum chloride concentration in the ACZ arm, whereas chloride fell by 7 (2-10) mmol/L in the SoC arm (P < 0.001). The number of adverse and serious adverse events ((S)AE) was numerically greater in the ACZ arm (51 events in 16 patients vs. 29 events in 10 patients, P = 0.24). Overall, 8 patients (30%) experienced (S)AEs possibly related to ACZ, and two of whom withdrew from the trial.
CONCLUSIONS: Acetazolamide has a significant "chloride-sparing" effect in patients given high-dose IV furosemide. However, ACZ did not significantly increase diuresis, and side effects from oral ACZ were frequent.
TRIAL REGISTRATION: ISRCTN13060336; 9/2/2023.