Diabetes complications

Sex differences in the efficacy of angiotensin receptor blockers on kidney and cardiovascular outcomes among individuals with type 2 diabetes and diabetic kidney disease: post hoc analyses of the RENAAL and II Diabetic Nephropathy Trial (IDNT) trials

DiabetologiaPublished Post hoc analysis of the RENAAL and IDNT randomised trials

Primary result · Kidney outcome (ESKD or doubling of serum creatinine)Result — go to the resultSex × treatment interaction HR 1.19 95% CI 0.89–1.59

Authors' conclusion

This study in individuals with type 2 diabetes and diabetic kidney disease suggests that the beneficial effects of angiotensin receptor blockers are similar in male and female participants for the kidney outcome but not for the cardiovascular outcome. More attention to sex differences in angiotensin receptor blockers' efficacy and underlying mechanisms of differences in response is needed.

Study context

Population
Individuals with T2D and diabetic kidney disease in the RENAAL and IDNT trials
Participants
1,737 vs 924
Comparison
Angiotensin receptor blockers vs control, by sex
  • Malen = 1,737
  • Femalen = 924
Primary endpoint
Kidney outcome: time to first ESKD or doubling of serum creatinine; CV outcome: time to first stroke, MI, CV death or hospitalisation for HF
Methodological detailssubgroup analysis by sex, sex × treatment interaction in Cox proportional hazards models
  • Subgroup analysis by sex
  • Sex × treatment interaction in Cox proportional hazards models

Primary result

As reported in the abstract

Kidney outcome:
  • ESKD
  • Doubling of serum creatinine

Sex × treatment interaction HR

1.19

95% CI 0.89–1.59

By group

Male

0.72

95% CI 0.59, 0.86

HR (ARB vs control)

Female

0.86

95% CI 0.69, 1.06

HR (ARB vs control)

Femalevs Male
sex × treatment interaction HR 1.19 (95% CI 0.89–1.59)

Further findings

OutcomeMaleFemaleSex × treatment interaction HR (95% CI)
CV outcome (stroke, MI, CV death or hospitalisation for HF)1.37 (1.03–1.82)
HR (ARB vs control)0.81 [95% CI 0.69, 0.95]1.11 [95% CI 0.88, 1.40]

CV outcome (stroke, MI, CV death or hospitalisation for HF)

ARBs lowered CV risk in male but not in female participants

Original publication

Sex differences in the efficacy of angiotensin receptor blockers on kidney and cardiovascular outcomes among individuals with type 2 diabetes and diabetic kidney disease: post hoc analyses of the RENAAL and IDNT trials. Diabetologia. Published 10 December 2024. doi:10.1007/s00125-024-06325-y

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