Cited by 568Chronic Kidney Disease and DiabetesDiabetes Management and ResearchDiabetes Treatment and Management

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Intensive Diabetes Therapy and Glomerular Filtration Rate in Type 1 Diabetes

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The DCCT/EDIC Research Group·2011·New England Journal of Medicine

Abstract

BACKGROUND: An impaired glomerular filtration rate (GFR) leads to end-stage renal disease and increases the risks of cardiovascular disease and death. Persons with type 1 diabetes are at high risk for kidney disease, but there are no interventions that have been proved to prevent impairment of the GFR in this population. METHODS: In the Diabetes Control and Complications Trial (DCCT), 1441 persons with type 1 diabetes were randomly assigned to 6.5 years of intensive diabetes therapy aimed at achieving near-normal glucose concentrations or to conventional diabetes therapy aimed at preventing hyperglycemic symptoms. Subsequently, 1375 participants were followed in the observational Epidemiology of Diabetes Interventions and Complications (EDIC) study. Serum creatinine levels were measured annually throughout the course of the two studies. The GFR was estimated with the use of the Chronic Kidney Disease Epidemiology Collaboration formula. We analyzed data from the two studies to determine the long-term effects of intensive diabetes therapy on the risk of impairment of the GFR, which was defined as an incident estimated GFR of less than 60 ml per minute per 1.73 m(2) of body-surface area at two consecutive study visits. RESULTS: Over a median follow-up period of 22 years in the combined studies, impairment of the GFR developed in 24 participants assigned to intensive therapy and in 46 assigned to conventional therapy (risk reduction with intensive therapy, 50%; 95% confidence interval, 18 to 69; P=0.006). Among these participants, end-stage renal disease developed in 8 participants in the intensive-therapy group and in 16 in the conventional-therapy group. As compared with conventional therapy, intensive therapy was associated with a reduction in the mean estimated GFR of 1.7 ml per minute per 1.73 m(2) during the DCCT study but during the EDIC study was associated with a slower rate of reduction in the GFR and an increase in the mean estimated GFR of 2.5 ml per minute per 1.73 m(2) (P<0.001 for both comparisons). The beneficial effect of intensive therapy on the risk of an impaired GFR was fully attenuated after adjustment for glycated hemoglobin levels or albumin excretion rates. CONCLUSIONS: The long-term risk of an impaired GFR was significantly lower among persons treated early in the course of type 1 diabetes with intensive diabetes therapy than among those treated with conventional diabetes therapy. (Funded by the National Institute of Diabetes and Digestive and Kidney Diseases and others; DCCT/EDIC ClinicalTrials.gov numbers, NCT00360815 and NCT00360893.).

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Metadata

Authors
The DCCT/EDIC Research Group
Affiliations
University of Washington (US)
Corresponding author
The DCCT/EDIC Research Group
Venue
New England Journal of Medicine
Published
2011-12-22
Volume
365
Issue
25
Pages
2366-2376
ISSN
  • 0028-4793 (ISSN-L)
  • 1533-4406
OpenAlex
W2141495158
Cited by
568
References
28
Citations by year
2026: 4 · 2025: 24 · 2024: 20 · 2023: 34 · 2022: 29 · 2021: 32 · 2020: 40 · 2019: 27 · 2018: 35 · 2017: 35 · 2016: 45 · 2015: 54 · 2014: 58 · 2013: 65 · 2012: 61
FWCI
46.28
Type
journal article
Language
en
Open access
Locations
  • New England Journal of Medicine (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • Research Portal (Queen's University Belfast) (submittedVersion)
Funders
  • Abbott Laboratories
  • Eli Lilly and Company
  • Sanofi
  • Northwestern University
  • University of Washington
  • Novo Nordisk
  • Genentech
  • National Institute of Diabetes and Digestive and Kidney Diseases (R01DK087726, RC4DK090766, R01DK088762)
  • National Center for Research Resources
  • Division of Diabetes, Endocrinology, and Metabolic Diseases
Topics
  • Health Sciences › Medicine › Nephrology › Chronic Kidney Disease and Diabetes
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes Management and Research
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes Treatment and Management
Keywords
type 1 diabetes, intensive diabetes therapy, glomerular filtration rate, diabetic nephropathy, end-stage renal disease, glycemic control, HbA1c, albuminuria, chronic kidney disease
MeSH terms
Adult, Creatinine, Diabetes Mellitus, Type 1, Diabetic Nephropathies, Female, Follow-Up Studies, Glomerular Filtration Rate, Glycated Hemoglobin, Humans, Hypoglycemic Agents, Insulin, Insulin Infusion Systems, Kidney Failure, Chronic, Male, Middle Aged

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