London: A latest study involving diabetes patients has provided new evidence on how best to add insulin to standard oral drugs to control blood sugar levels in type 2 diabetes.
"Type 2 diabetes is a progressive condition with the majority of patients eventually requiring insulin therapy," says Professor Rury Holman, principal investigator of the study and director of the Diabetes Trials Unit at Oxford University."This large-scale study strengthens guidelines recommending adding a basal insulin to oral agents when glycaemic targets are not met.""Improved control of blood sugar levels is known to reduce the risk of complications in type 2 diabetes, such as kidney failure and loss of vision from eye disease. As type 2 diabetes progresses, the standard oral therapy will typically need to be escalated repeatedly over time. Eventually, the majority of patients will require insulin but there remains uncertainty as to which regimen of insulin injections should be used when oral drugs become insufficient.There is no clear consensus about whether to start with insulin therapy three times a day with meals, injections twice a day, or a long-acting once-a-day insulin injection.The researchers set out to find which pattern of treatment resulted in the best control of blood sugar levels.
Their three-year, randomised controlled trial compared different insulin regimens in 708 patients with type 2 diabetes whose current doses of anti-diabetic drugs were not proving sufficient. During the first year, patients were randomised to one of the three insulin courses. During the second and third years, those who were still not achieving their glucose targets were moved to more complex insulin regimens.Dr Jonathan Levy, lead clinician at the Oxford Centre for Diabetes, Endocrinology and Metabolism and co-principal investigator said: "Starting with a basal insulin and adding a mealtime insulin if required provided the best combination of effectiveness, safety and treatment satisfaction"."These results will help patients and healthcare professionals in routine clinical practice to decide which treatment is most suitable for the individual," said Dr Andrew Farmer, co-principal investigator at the Department of Primary Health Care. Bureau Report
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