Heart failure & cardiomyopathies

Combining Loop and Thiazide Diuretics for Acute Heart Failure Across the Estimated Glomerular Filtration Rate Spectrum: A Post-Hoc Analysis of the CLOROTIC Trial

Eur J Heart FailPublished Secondary analysis of the CLOROTIC randomised trial

Authors' conclusion

The addition of eGFR-adjusted doses of oral HCTZ to loop diuretics in patients with AHF improved diuretic response across the eGFR spectrum.

Study context

Population
Patients with acute heart failure (AHF); median estimated glomerular filtration rate (eGFR) 43 ml/min/1.73 m² (range 14–109)
Participants
230 patients
Comparison
Hydrochlorothiazide (HCTZ) added to furosemide vs furosemide alone, by eGFR group
Methodological detailspost-hoc analysis
  • Post-hoc analysis

Primary result

As reported in the abstract

Weight loss with HCTZ by eGFR group · 72 h

Weight difference, HCTZ, eGFR ≥60 ml/min/1.73 m² (group 1)

−2.1 kg

−3.0 to 0.5

Weight difference, HCTZ, eGFR 45–59 ml/min/1.73 m² (group 2)

−1.3 kg

−2.3 to 0.2

Weight difference, HCTZ, eGFR <45 ml/min/1.73 m² (group 3)

−0.1 kg

−1.3 to 0.4

Secondary outcomes

Weight difference with HCTZ by eGFR group · 96 h

kg

Weight difference, HCTZ, group 1 (eGFR ≥60)
−1.8 (−3.0 to −0.3)
Weight difference, HCTZ, group 2 (eGFR 45–59)
−1.4 (−2.6 to 0.3)
Weight difference, HCTZ, group 3 (eGFR <45)
−0.5 (−1.3 to −0.1)
  • P-value for interaction = 0.256

Diuretic response, mortality, rehospitalizations, by eGFR group

No significant differences with HCTZ among the three eGFR groups (all interaction P not significant)

Safety

Impaired renal function, hyponatraemia, hypokalaemia

No significant differences with HCTZ among the three eGFR groups (all interaction P not significant)

Parts of this Brief are withheld: the automatic checks could not confirm them against the abstract.

Original publication

Combining Loop and Thiazide Diuretics for Acute Heart Failure Across the Estimated Glomerular Filtration Rate Spectrum: A Post-Hoc Analysis of the CLOROTIC Trial. Eur J Heart Fail. Published 16 August 2023. doi:10.1002/ejhf.2988

Summarised from the published abstract; every number is checked against it

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