Lung cancer risk unaffected by metformin use in diabetes

(HealthDay)—Patients with type 2 diabetes who take metformin do not have a reduced risk of lung cancer, in contrast to previous observational studies, according to a study published online Aug. 24 in Diabetes Care.

To determine whether metformin use in is associated with the incidence of lung cancer, Brielan B. Smiechowski, from the Jewish General Hospital in Montreal, and colleagues analyzed data from 115,923 patients with type 2 diabetes newly treated with oral hypoglycemic agents.

The researchers found that 1,061 patients were diagnosed with lung cancer during follow-up. Based on matching each lung cancer case with up to 10 matched control subjects, metformin had no effect on the lung cancer rate (rate ratio, 0.94). Smoking status had no effect. No dose-response was noted based on number of prescriptions received, cumulative duration of use, and cumulative dose.

"Metformin use is not associated with a decreased risk of lung cancer in patients with type 2 diabetes," Smiechowski and colleagues conclude. "The decreased risk reported in other is likely due to bias from methodological shortcomings."

More information: Abstract
Full Text (subscription or payment may be required)

add to favorites email to friend print save as pdf

Related Stories

Metformin may prevent lung cancer in smokers

Apr 19, 2010

Metformin, a mainstay of treatment for patients with type 2 diabetes, may soon play a role in lung cancer prevention if early laboratory research presented here at the AACR 101st Annual Meeting 2010 is confirmed in clinical ...

Diabetes linked to lung cancer in postmenopausal women

May 30, 2012

(HealthDay) -- Postmenopausal women with diabetes are at a significantly higher risk of developing lung cancer, particularly if they require insulin therapy, according to research published online May 22 in ...

Metformin appeared to slow prostate cancer growth

Apr 01, 2012

The use of metformin in men with prostate cancer before prostatectomy helped to reduce certain metabolic parameters and slow the growth rate of the cancer, according to the results of a phase II study.

Recommended for you

Blood glucose levels set for achieving HbA1c targets

Apr 11, 2014

(HealthDay)—The average self-monitored blood glucose (SMBG) concentrations needed at premeal, postmeal, and bedtime have been established to achieve a range of hemoglobin A1c (HbA1c) targets, according ...

Women with diabetes less likely to have a mammogram

Apr 11, 2014

Women with diabetes are 14 per cent less likely to be screened for breast cancer compared to women without diabetes, according to a study by researchers at the Institute for Clinical Evaluative Sciences (ICES) and Women's ...

Nonalcoholic fatty liver disease linked to CKD in T1DM

Apr 09, 2014

(HealthDay)—For patients with type 1 diabetes, nonalcoholic fatty liver disease (NAFLD) is independently associated with the risk of incident chronic kidney disease (CKD), according to a study published ...

Common diabetes treatment could extend hypoglycaemia

Apr 08, 2014

(Medical Xpress)—Researchers at the University of Adelaide have discovered that a common treatment for people with type 2 diabetes could cause longer-than-normal periods of the low blood sugar reaction hypoglycaemia, which ...

User comments