Visual Abstract. Impact of Finerenone-Induced Albuminuria Reduction on Chronic Kidney Disease Outcomes in Type 2 Diabetes
Guidelines recommend albuminuria targets to guide treatment among patients with diabetes. This study examines the degree to which finerenone’s beneficial effects on kidney and cardiovascular outcomes can be explained by the drug’s effect in reducing early signs of kidney injury as measured by albuminuria.
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Abstract

Background:

In patients with chronic kidney disease (CKD) and type 2 diabetes (T2D), finerenone, a nonsteroidal mineralocorticoid receptor antagonist, reduces cardiovascular and kidney failure outcomes. Finerenone also lowers the urine albumin-to-creatinine ratio (UACR). Whether finerenone-induced change in UACR mediates cardiovascular and kidney failure outcomes is unknown.

Objective:

To quantify the proportion of kidney and cardiovascular risk reductions seen over a 4-year period mediated by a change in kidney injury, as measured by the change in log UACR between baseline and month 4.

Design:

Post hoc mediation analysis using pooled data from 2 phase 3, double-blind trials of finerenone. (ClinicalTrials.gov: NCT02540993 and NCT02545049)

Setting:

Several clinical sites in 48 countries.

Patients:

12 512 patients with CKD and T2D.

Intervention:

Finerenone and placebo (1:1).

Measurements:

Separate mediation analyses were done for the composite kidney (kidney failure, sustained ≥57% decrease in estimated glomerular filtration rate from baseline [approximately a doubling of serum creatinine], or kidney disease death) and cardiovascular (cardiovascular death, nonfatal myocardial infarction, nonfatal stroke, or hospitalization for heart failure) outcomes.

Results:

At baseline, median UACR was 514 mg/g. A 30% or greater reduction in UACR was seen in 3338 (53.2%) patients in the finerenone group and 1684 (27.0%) patients in the placebo group. Reduction in UACR (analyzed as a continuous variable) mediated 84% and 37% of the treatment effect on the kidney and cardiovascular outcomes, respectively. When change in UACR was analyzed as a binary variable (that is, whether the guideline-recommended 30% reduction threshold was met), the proportions mediated for each outcome were 64% and 26%, respectively.

Limitation:

The current findings are not readily extendable to other drugs.

Conclusion:

In patients with CKD and T2D, early albuminuria reduction accounted for a large proportion of the treatment effect against CKD progression and a modest proportion of the effect against cardiovascular outcomes.

Primary Funding Source:

Bayer AG.

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Supplemental Material

Supplement. Supplementary Material

Supplement Study Protocol. Study Protocol

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17.
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18.
Ruilope LM, Agarwal R, Anker SD, et al; FIGARO-DKD Study Investigators. Design and baseline characteristics of the Finerenone in Reducing Cardiovascular Mortality and Morbidity in Diabetic Kidney Disease trial. Am J Nephrol. 2019;50:345-356. [PMID: 31665733] doi: 10.1159/000503712
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Information & Authors

Information

Published In

Annals of Internal Medicine
Volume 176Number 12December 2023
Pages: 1606 - 1616

History

Published online: 5 December 2023
Published in issue: December 2023

Keywords

Authors

Affiliations

Presented in part at the American Society of Nephrology (ASN) 2023, Philadelphia, Pennsylvania, 2 November 2023.
Acknowledgment: The authors thank Ines Neves, MSc, and Cindy Jenner, PhD, of Chameleon Communications International for providing medical writing assistance.
Financial Support: By Bayer AG. Dr. Agarwal acknowledges the funding support from the National Institutes of Health (R01HL126903) and Veterans Administration (I01CX001753).
Data Sharing Statement: Availability of the data underlying this publication will be determined according to Bayer’s commitment to the European Federation of Pharmaceutical Industries and Associations (EFPIA)/Pharmaceutical Research and Manufacturers of America (PhRMA) “Principles for Responsible Clinical Trial Data Sharing.” This pertains to scope, timepoint, and process of data access. As such, Bayer commits to sharing upon request from qualified scientific and medical researchers patient-level clinical trial data, study-level clinical trial data, and protocols from clinical trials in patients for medicines and indications approved in the United States and European Union as necessary for conducting legitimate research. This applies to data on new medicines and indications that have been approved by the European Union and U.S. regulatory agencies on or after 1 January 2014. Interested researchers can use www.vivli.org to request access to anonymized patient-level data and supporting documents from clinical studies to conduct further research that can help advance medical science or improve patient care. Information on the Bayer criteria for listing studies and other relevant information is provided in the member section of the portal. Data access will be granted to anonymized patient-level data, protocols, and clinical study reports after approval by an independent scientific review panel. Bayer is not involved in the decisions made by the independent review panel. Bayer will take all necessary measures to ensure that patient privacy is safeguarded.
Corresponding Author: Rajiv Agarwal, MD, MS, Indiana University School of Medicine and Richard L. Roudebush VA Medical Center, Indianapolis, IN 46202; e-mail, ragarwal@iu.edu.
Author Contributions: Conception and design: R. Agarwal, G.L. Bakris, Y.M.K. Farag, A.E. Farjat, G. Filippatos, S. Kaul, R. Lawatscheck, K. Rohwedder, P. Rossing, L.M. Ruilope, R. Toto, W. Tu.
Analysis and interpretation of the data: R. Agarwal, G.L. Bakris, Y.M.K. Farag, A.E. Farjat, G. Filippatos, S. Kaul, R. Lawatscheck, P. Rossing, L.M. Ruilope, R. Toto, W. Tu.
Drafting of the article: R. Agarwal, Y.M.K. Farag, A.E. Farjat, R. Lawatscheck, K. Rohwedder, L.M. Ruilope, R. Toto, W. Tu.
Critical revision of the article for important intellectual content: R. Agarwal, S.D. Anker, Y.M.K. Farag, A.E. Farjat, G. Filippatos, S. Kaul, R. Lawatscheck, P. Rossing, W. Tu.
Final approval of the article: R. Agarwal, S.D. Anker, G.L. Bakris, Y.M.K. Farag, A.E. Farjat, G. Filippatos, S. Kaul, R. Lawatscheck, B. Pitt, K. Rohwedder, P. Rossing, L.M. Ruilope, R. Toto, W. Tu.
Provision of study materials or patients: Y.M.K. Farag.
Statistical expertise: Y.M.K. Farag, A.E. Farjat, W. Tu.
Obtaining of funding: G.L. Bakris, Y.M.K. Farag.
Administrative, technical, or logistic support: R. Agarwal, Y.M.K. Farag, A.E. Farjat, R. Lawatscheck.
Collection and assembly of data: R. Agarwal, G.L. Bakris, Y.M.K. Farag, A.E. Farjat, G. Filippatos, R. Lawatscheck, P. Rossing.
This article was published at Annals.org on 5 December 2023.
* For a full list of the FIDELIO-DKD and FIGARO-DKD Investigators, see the Supplement.

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Rajiv Agarwal, Wanzhu Tu, Alfredo E. Farjat, et al; FIDELIO-DKD and FIGARO-DKD Investigators. Impact of Finerenone-Induced Albuminuria Reduction on Chronic Kidney Disease Outcomes in Type 2 Diabetes: A Mediation Analysis. Ann Intern Med.2023;176:1606-1616. [Epub 5 December 2023]. doi:10.7326/M23-1023

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Visual Abstract. Impact of Finerenone-Induced Albuminuria Reduction on Chronic Kidney Disease Outcomes in Type 2 Diabetes
Guidelines recommend albuminuria targets to guide treatment among patients with diabetes. This study examines the degree to which finerenone’s beneficial effects on kidney and cardiovascular outcomes can be explained by the drug’s effect in reducing early signs of kidney injury as measured by albuminuria.

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References

References

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Bailey RA, Wang Y, Zhu V, et al. Chronic kidney disease in US adults with type 2 diabetes: an updated national estimate of prevalence based on Kidney Disease: Improving Global Outcomes (KDIGO) staging. BMC Res Notes. 2014;7:415. [PMID: 24990184] doi: 10.1186/1756-0500-7-415
6.
Gansevoort RT, Matsushita K, van der Velde M, et al; Chronic Kidney Disease Prognosis Consortium. Lower estimated GFR and higher albuminuria are associated with adverse kidney outcomes: a collaborative meta-analysis of general and high-risk population cohorts. Kidney Int. 2011;80:93-104. [PMID: 21289597] doi: 10.1038/ki.2010.531
7.
Matsushita K, Coresh J, Sang Y, et al; CKD Prognosis Consortium. Estimated glomerular filtration rate and albuminuria for prediction of cardiovascular outcomes: a collaborative meta-analysis of individual participant data. Lancet Diabetes Endocrinol. 2015;3:514-525. [PMID: 26028594] doi: 10.1016/S2213-8587(15)00040-6
8.
Matsushita K, van der Velde M, Astor BC, et al; Chronic Kidney Disease Prognosis Consortium. Association of estimated glomerular filtration rate and albuminuria with all-cause and cardiovascular mortality in general population cohorts: a collaborative meta-analysis. Lancet. 2010;375:2073-2081. [PMID: 20483451] doi: 10.1016/S0140-6736(10)60674-5
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de Zeeuw D, Remuzzi G, Parving H, et al. Proteinuria, a target for renoprotection in patients with type 2 diabetic nephropathy: lessons from RENAAL. Kidney Int. 2004;65:2309-2320. [PMID: 15149345] doi: 10.1111/j.1523-1755.2004.00653.x
10.
de Zeeuw D, Remuzzi G, Parving HH, et al. Albuminuria, a therapeutic target for cardiovascular protection in type 2 diabetic patients with nephropathy. Circulation. 2004;110:921-927. [PMID: 15302780] doi: 10.1161/01.CIR.0000139860.33974.28
11.
Oshima M, Neuen BL, Li J, et al. Early change in albuminuria with canagliflozin predicts kidney and cardiovascular outcomes: a posthoc analysis from the CREDENCE trial. J Am Soc Nephrol. 2020;31:2925-2936. [PMID: 32998938] doi: 10.1681/ASN.2020050723
12.
Waijer SW, Xie D, Inzucchi SE, et al. Short-term changes in albuminuria and risk of cardiovascular and renal outcomes in type 2 diabetes mellitus: a post hoc analysis of the EMPA-REG OUTCOME trial. J Am Heart Assoc. 2020;9:e016976. [PMID: 32893717] doi: 10.1161/JAHA.120.016976
13.
ElSayed NA, Aleppo G, Aroda VR, et al. 11. Chronic Kidney Disease and Risk Management: Standards of Care in Diabetes-2023. Diabetes Care. 2023;46:S191-S202. [PMID: 36507634] doi: 10.2337/dc23-S011
14.
Heerspink HJ, Kröpelin TF, Hoekman J, et al; Reducing Albuminuria as Surrogate Endpoint (REASSURE) Consortium. Drug-induced reduction in albuminuria is associated with subsequent renoprotection: a meta-analysis. J Am Soc Nephrol. 2015;26:2055-2064. [PMID: 25421558] doi: 10.1681/ASN.2014070688
15.
Bakris GL, Agarwal R, Anker SD, et al; FIDELIO-DKD Investigators. Effect of finerenone on chronic kidney disease outcomes in type 2 diabetes. N Engl J Med. 2020;383:2219-2229. [PMID: 33264825] doi: 10.1056/NEJMoa2025845
16.
Ruilope LM, Pitt B, Anker SD, et al. Kidney outcomes with finerenone: an analysis from the FIGARO-DKD study. Nephrol Dial Transplant. 2023;38:372-383. [PMID: 35451488] doi: 10.1093/ndt/gfac157
17.
Agarwal R, Filippatos G, Pitt B, et al; FIDELIO-DKD and FIGARO-DKD Investigators. Cardiovascular and kidney outcomes with finerenone in patients with type 2 diabetes and chronic kidney disease: the FIDELITY pooled analysis. Eur Heart J. 2022;43:474-484. [PMID: 35023547] doi: 10.1093/eurheartj/ehab777
18.
Ruilope LM, Agarwal R, Anker SD, et al; FIGARO-DKD Study Investigators. Design and baseline characteristics of the Finerenone in Reducing Cardiovascular Mortality and Morbidity in Diabetic Kidney Disease trial. Am J Nephrol. 2019;50:345-356. [PMID: 31665733] doi: 10.1159/000503712
19.
Bakris GL, Agarwal R, Anker SD, et al; FIDELIO-DKD Study Investigators. Design and baseline characteristics of the Finerenone in Reducing Kidney Failure and Disease Progression in Diabetic Kidney Disease trial. Am J Nephrol. 2019;50:333-344. [PMID: 31655812] doi: 10.1159/000503713
20.
Pitt B, Filippatos G, Agarwal R, et al; FIGARO-DKD Investigators. Cardiovascular events with finerenone in kidney disease and type 2 diabetes. N Engl J Med. 2021;385:2252-2263. [PMID: 34449181] doi: 10.1056/NEJMoa2110956
21.
Levey AS, Gansevoort RT, Coresh J, et al. Change in albuminuria and GFR as end points for clinical trials in early stages of CKD: a scientific workshop sponsored by the National Kidney Foundation in collaboration with the US Food and Drug Administration and European Medicines Agency. Am J Kidney Dis. 2020;75:84-104. [PMID: 31473020] doi: 10.1053/j.ajkd.2019.06.009
22.
Levin A, Agarwal R, Herrington WG, et al; participant authors of the International Society of Nephrology’s 1st International Consensus Meeting on Defining Kidney Failure in Clinical Trials. International consensus definitions of clinical trial outcomes for kidney failure: 2020. Kidney Int. 2020;98:849-859. [PMID: 32998816] doi: 10.1016/j.kint.2020.07.013
23.
Coresh J, Heerspink HJL, Sang Y, et al; Chronic Kidney Disease Prognosis Consortium and Chronic Kidney Disease Epidemiology Collaboration. Change in albuminuria and subsequent risk of end-stage kidney disease: an individual participant-level consortium meta-analysis of observational studies. Lancet Diabetes Endocrinol. 2019;7:115-127. [PMID: 30635225] doi: 10.1016/S2213-8587(18)30313-9
24.
VanderWeele TJ. Explanation in Causal Inference: Methods for Mediation and Interaction. Oxford Univ Pr; 2015.
25.
Imai K, Keele L, Tingley D. A general approach to causal mediation analysis. Psychol Methods. 2010;15:309-334. [PMID: 20954780] doi: 10.1037/a0020761
26.
Imai K, Keele L, Yamamoto T. Identification, inference and sensitivity analysis for causal mediation effects. Stat Sci. 2010;25:51-71. doi: 10.1214/10-STS321
27.
Gelfand LA, MacKinnon DP, DeRubeis RJ, et al. Mediation analysis with survival outcomes: accelerated failure time vs. proportional hazards models. Front Psychol. 2016;7:423. [PMID: 27065906] doi: 10.3389/fpsyg.2016.00423
28.
Fulcher IR, Tchetgen Tchetgen E, Williams PL. Mediation analysis for censored survival data under an accelerated failure time model. Epidemiology. 2017;28:660-666. [PMID: 28574921] doi: 10.1097/EDE.0000000000000687
29.
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Visual Abstract
Visual Abstract. Impact of Finerenone-Induced Albuminuria Reduction on Chronic Kidney Disease Outcomes in Type 2 Diabetes
Guidelines recommend albuminuria targets to guide treatment among patients with diabetes. This study examines the degree to which finerenone’s beneficial effects on kidney and cardiovascular outcomes can be explained by the drug’s effect in reducing early signs of kidney injury as measured by albuminuria.