Metformin and Cancer Occurrence in Insulin-Treated Type 2 Diabetic Patients

OBJECTIVE: Metformin is associated with reduced cancer-related morbidity and mortality. The aim of this study was to assess the effect of metformin on cancer incidence in a consecutive series of insulin-treated patients. RESEARCH DESIGN AND METHODS: A nested case-control study was performed in a coh...

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Veröffentlicht in:Diabetes care 2011-01, Vol.34 (1), p.129-131
Hauptverfasser: Monami, Matteo, Colombi, Claudia, Balzi, Daniela, Dicembrini, Ilaria, Giannini, Stefano, Melani, Cecilia, Vitale, Valentina, Romano, Desiderio, Barchielli, Alessandro, Marchionni, Niccolò, Rotella, Carlo Maria, Mannucci, Edoardo
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container_end_page 131
container_issue 1
container_start_page 129
container_title Diabetes care
container_volume 34
creator Monami, Matteo
Colombi, Claudia
Balzi, Daniela
Dicembrini, Ilaria
Giannini, Stefano
Melani, Cecilia
Vitale, Valentina
Romano, Desiderio
Barchielli, Alessandro
Marchionni, Niccolò
Rotella, Carlo Maria
Mannucci, Edoardo
description OBJECTIVE: Metformin is associated with reduced cancer-related morbidity and mortality. The aim of this study was to assess the effect of metformin on cancer incidence in a consecutive series of insulin-treated patients. RESEARCH DESIGN AND METHODS: A nested case-control study was performed in a cohort of 1,340 patients by sampling, for each case subject, age-, sex-, and BMI-matched control subjects from the same cohort. RESULTS: During a median follow-up of 75.9 months, 112 case patients who developed incident cancer and were compared with 370 control subjects. A significantly lower proportion of case subjects were exposed to metformin and sulfonylureas. After adjustment for comorbidity, glargine, and total insulin doses, exposure to metformin, but not to sulfonylureas, was associated with reduced incidence of cancer (odds ratio 0.46 [95% CI 0.25-0.85], P = 0.014 and 0.75 [0.39-1.45], P = 0.40, respectively). CONCLUSIONS: The reduction of cancer risk could be a further relevant reason for maintaining use of metformin in insulin-treated patients.
doi_str_mv 10.2337/dc10-1287
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source MEDLINE; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals
subjects Aged
Biological and medical sciences
Cancer
Cancer patients
Cancer therapies
Care and treatment
Case-Control Studies
Design
Diabetes
Diabetes Mellitus, Type 2 - drug therapy
Diabetes. Impaired glucose tolerance
Diabetics
Endocrine pancreas. Apud cells (diseases)
Endocrinopathies
Etiopathogenesis. Screening. Investigations. Target tissue resistance
Fees & charges
Female
Health aspects
Humans
Hypoglycemic Agents - therapeutic use
Insulin - analogs & derivatives
Insulin - therapeutic use
Insulin Glargine
Insulin, Long-Acting
Kinases
Male
Medical sciences
Metabolic diseases
Metformin
Metformin - therapeutic use
Middle Aged
Miscellaneous
Mortality
Multivariate analysis
Neoplasms - epidemiology
Neoplasms - prevention & control
Oncology, Experimental
Original Research
Pharmaceutical industry
Public health. Hygiene
Public health. Hygiene-occupational medicine
Sulfonylurea Compounds - therapeutic use
Teaching hospitals
title Metformin and Cancer Occurrence in Insulin-Treated Type 2 Diabetic Patients
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