Heart failure & cardiomyopathiesSecondary analysis

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
  • post-hoc analysis

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

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