A combination of two diabetes drugs, metformin and rosiglitazone, was more effective in treating youth with recent-onset type 2 diabetes than metformin alone, a study funded by the National Institutes of Health (NIH) has found. Adding an intensive lifestyle intervention to metformin provided no more benefit than metformin therapy alone.
The study also found that metformin therapy alone was not an effective treatment for many of these youth. In fact, metformin had a much higher failure rate in study participants than has been reported in studies of adults treated with metformin alone.
The Treatment Options for type 2 Diabetes in Adolescents and Youth (TODAY) study is the first major comparative effectiveness trial for the treatment of type 2 diabetes in young people. TODAY was funded by the National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), part of NIH. Study results will appear in the New England Journal of Medicine on April 29, 2012.
"The results of this study tell us it might be good to start with a more aggressive drug treatment approach in youth with type 2 diabetes," said Philip Zeitler, M.D., Ph.D., the TODAY study chair and a pediatric endocrinologist at Children's Hospital Colorado, Aurora. "We are learning that type 2 diabetes is a more aggressive disease in youth than in adults and progresses more rapidly, which could be why metformin alone had a higher than expected failure rate."
The TODAY study tested how well and for how long each of three treatment approaches controlled blood glucose levels in youth enrolled from ages 10 to 17 with type 2 diabetes. Participants were randomly assigned to one of three treatment groups: metformin alone, metformin and rosiglitazone together, and metformin plus intensive lifestyle changes aimed at helping participants lose weight and increase physical activity.
The study found that treatment with metformin alone was inadequate for maintaining acceptable, long-term, blood glucose control in 51.7 percent of youth over an average follow-up of 46 months. The failure rate was 38.6 percent in the metformin and rosiglitazone group, a 25.3 percent reduction from metformin alone. In the metformin plus lifestyle group the failure rate was 46.6 percent.
The childhood obesity epidemic has led to the emergence of type 2 diabetes in youth. However, because type 2 diabetes has been primarily an adult illness, information about how to effectively treat youth is limited, and pediatric diabetes experts have had to rely on what is known about adult treatment.
Currently, metformin is the standard treatment for young people with type 2 diabetes and the only oral drug approved for this use by the U.S. Food and Drug Administration.
The longer a person has type 2 diabetes, the greater the likelihood of developing complications including coronary artery disease, stroke, kidney and eye disease, and nerve damage, making it critical for young people with type 2 diabetes to quickly achieve and sustain control of their blood glucose.
"This important study provides much-needed information about how to treat type 2 diabetes in young people. Earlier studies in adults have shown that early, effective treatment can prevent serious and costly diabetes complications later in life," said NIDDK Director Griffin P. Rodgers, M.D. "Longer-term follow up will be important to understand whether more aggressive therapy for youth with type 2 diabetes will yield long-term benefits as they move into adulthood."
In September 2010, the FDA restricted the use of rosiglitazone because of studies linking the medicine to a higher risk of heart attacks and stroke in adults. The TODAY Data Safety and Monitoring Board—an independent group of health and science experts—carefully examined all safety data for TODAY participants and recommended that the study should continue to test rosiglitazone. Rosiglitazone is sold commercially as Avandia.
Studies have shown lifestyle-change programs to be effective in improving blood glucose control for adults with type 2 diabetes. However, the TODAY lifestyle intervention—a family-based weight-management program that included intensive education and activities delivered one-on-one by trained study staff—added no benefit to the metformin therapy. Some youth lost weight during the study, but the majority did not.
"Despite a rigorous lifestyle intervention, we were unable to achieve sustained lifestyle changes in these youth, though similar strategies have proven effective in adults," said Barbara Linder, M.D., Ph.D., NIDDK senior advisor for childhood diabetes research. "TODAY investigators will look more closely at those youth who succeeded in losing weight to better understand how to achieve effective lifestyle change in this population."
The study enrolled 699 youth who had type 2 diabetes for less than two years and a body mass index (BMI) at the 85th percentile or greater. BMI is a measurement of weight in relation to height. Overweight children have a BMI at the 85th to 94th percentile for their age and sex, while obesity is defined as a BMI at the 95th percentile or more. The TODAY participants had an average BMI at the 98th percentile.
Type 2 diabetes in adults and children is closely linked to being overweight, inactive, and having a family history of diabetes. Type 2 diabetes represents 95 percent of diabetes cases in adults, but is much less common in children than type 1 diabetes. Type 1 diabetes, which usually strikes children and young adults, develops when the body's immune system destroys insulin-producing beta cells in the pancreas.The TODAY study centers included
The NIDDK, part of the NIH, conducts and supports basic and clinical research and research training on some of the most common, severe and disabling conditions affecting Americans. The Institute's research interests include: diabetes and other endocrine and metabolic diseases; digestive diseases, nutrition, and obesity; and kidney, urologic and hematologic diseases. For more information, visit www.niddk.nih.gov.
About the National Institutes of Health (NIH): NIH, the nation's medical research agency, includes 27 Institutes and Centers and is a component of the U.S. Department of Health and Human Services. NIH is the primary federal agency conducting and supporting basic, clinical, and translational medical research, and is investigating the causes, treatments, and cures for both common and rare diseases. For more information about NIH and its programs, visit www.nih.gov
NIH…Turning Discovery Into Health
Amy F. Reiter | EurekAlert!
Genetic differences between strains of Epstein-Barr virus can alter its activity
18.07.2019 | University of Sussex
Machine learning platform guides pancreatic cyst management in patients
18.07.2019 | American Association for the Advancement of Science
Scientists have visualised the electronic structure in a microelectronic device for the first time, opening up opportunities for finely-tuned high performance electronic devices.
Physicists from the University of Warwick and the University of Washington have developed a technique to measure the energy and momentum of electrons in...
Scientists at the University Würzburg and University Hospital of Würzburg found that megakaryocytes act as “bouncers” and thus modulate bone marrow niche properties and cell migration dynamics. The study was published in July in the Journal “Haematologica”.
Hematopoiesis is the process of forming blood cells, which occurs predominantly in the bone marrow. The bone marrow produces all types of blood cells: red...
For some phenomena in quantum many-body physics several competing theories exist. But which of them describes a quantum phenomenon best? A team of researchers from the Technical University of Munich (TUM) and Harvard University in the United States has now successfully deployed artificial neural networks for image analysis of quantum systems.
Is that a dog or a cat? Such a classification is a prime example of machine learning: artificial neural networks can be trained to analyze images by looking...
An international research group led by scientists from the University of Bayreuth has produced a previously unknown material: Rhenium nitride pernitride. Thanks to combining properties that were previously considered incompatible, it looks set to become highly attractive for technological applications. Indeed, it is a super-hard metallic conductor that can withstand extremely high pressures like a diamond. A process now developed in Bayreuth opens up the possibility of producing rhenium nitride pernitride and other technologically interesting materials in sufficiently large quantity for their properties characterisation. The new findings are presented in "Nature Communications".
The possibility of finding a compound that was metallically conductive, super-hard, and ultra-incompressible was long considered unlikely in science. It was...
An interdisciplinary research team at the Technical University of Munich (TUM) has built platinum nanoparticles for catalysis in fuel cells: The new size-optimized catalysts are twice as good as the best process commercially available today.
Fuel cells may well replace batteries as the power source for electric cars. They consume hydrogen, a gas which could be produced for example using surplus...
24.06.2019 | Event News
29.04.2019 | Event News
17.04.2019 | Event News
18.07.2019 | Health and Medicine
18.07.2019 | Life Sciences
18.07.2019 | Health and Medicine