Increase in BNP in Response to Endothelin-Receptor Antagonist Atrasentan Is Associated With Incident Heart Failure

J David Smeijer, Jeroen Koomen, Donald E Kohan, John J V McMurray, George L Bakris, Ricardo Correa-Rotter, Fan-Fan Hou, James L Januzzi, Dalane W Kitzman, Daniel M Kolansky, Hirofumi Makino, Vlado Perkovic, Sheldon Tobe, Hans-Henrik Parving, Dick de Zeeuw, Hiddo J L Heerspink*

*Corresponding author for this work

    Abstract

    BACKGROUND: The endothelin receptor antagonist atrasentan reduced the risk of kidney failure in patients with type 2 diabetes mellitus and chronic kidney disease (CKD) in the SONAR (Study of Diabetic Nephropathy with Atrasentan) trial, although with a numerically higher incidence of heart failure (HF) hospitalization.

    OBJECTIVES: The purpose of this study was to assess if early changes in B-type natriuretic peptide (BNP) and body weight during atrasentan treatment predict HF risk.

    METHODS: Participants with type 2 diabetes and CKD entered an open-label enrichment phase to assess response to atrasentan 0.75 mg/day. Participants without substantial fluid retention (>3 kg body weight increase or BNP increase to >300 pg/mL), were randomized to atrasentan 0.75 mg/day or placebo. Cox proportional hazards regression was used to assess the effects of atrasentan vs placebo on the prespecified safety outcome of HF hospitalizations.

    RESULTS: Among 3,668 patients, 73 (4.0%) participants in the atrasentan and 51 (2.8%) in the placebo group developed HF (HR: 1.39; 95% CI: 0.97-1.99; P = 0.072). In a multivariable analysis, HF risk was associated with higher baseline BNP (HR: 2.32; 95% CI: 1.81-2.97) and percent increase in BNP during response enrichment (HR: 1.46; 95% CI: 1.08-1.98). Body weight change was not associated with HF. Exclusion of patients with at least 25% BNP increase during enrichment attenuated the risk of HF with atrasentan (HR: 1.02; 95% CI: 0.66-1.56) while retaining nephroprotective effects (HR: 0.58; 95% CI: 0.44-0.78).

    CONCLUSIONS: In patients with type 2 diabetes and CKD, baseline BNP and early changes in BNP in response to atrasentan were associated with HF hospitalization, highlighting the importance of natriuretic peptide monitoring upon initiation of atrasentan treatment. (Study Of Diabetic Nephropathy With Atrasentan [SONAR]; NCT01858532).

    Original languageEnglish
    JournalJACC. Heart failure
    Volume10
    Issue number7
    Pages (from-to)498-507
    Number of pages10
    ISSN2213-1779
    DOIs
    Publication statusPublished - Jul 2022

    Keywords

    • Atrasentan/therapeutic use
    • Diabetes Mellitus, Type 2/complications
    • Diabetic Nephropathies/complications
    • Double-Blind Method
    • Endothelin Receptor Antagonists/therapeutic use
    • Endothelins/therapeutic use
    • Heart Failure/complications
    • Humans
    • Natriuretic Peptide, Brain/therapeutic use
    • Renal Insufficiency, Chronic/complications
    • Weight Gain

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