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Drugs prescribed to 100,000 patients in Britain to treat diabetes double the risk of heart failure, a study has suggested. The finding is a blow to GlaxoSmithKline, whose drug Avandia is one of the drugs involved.
The new analysis, which pools data from 78,000 patients, finds that one in fifty patients treated with either Avandia or a similar drug, Actos, for two and a half years would be admitted to hospital with heart failure.
The two drugs reviewed in the new analysis in Diabetes Care are prescribed to millions of patients to treat type 2 diabetes. They are approved by the National Institute for Health and Clinical Excellence (NICE) for use on the NHS.
The drugs already carry a warning that they are not suitable for patients suffering from, or at risk of, heart failure. But the new study suggests an increased risk even for those who have never suffered the condition. Two advisory panels for the US Food and Drug Administration are now reexamining both drugs.
A study in The New England Journal of Medicine in May linked Avandia to a 43 per cent increased risk of heart attacks. The European Medicines Agency (EMEA) said that its Committee for Medicinal Products for Human Use (CHMP) is carrying out a reevaluation of both drugs. The new research was carried out at the University of East Anglia (UEA) and Wake Forest University in North Carolina, in the US. It was led by Yoon Loke, a clinical pharmacologist at UEA. The experts suspect that the drugs cause fluid retention, which could trigger heart failure.
Alastair Benbow, the European medical director of GlaxoSmithKline, said: “Long-term studies have not shown an overall increase in heart deaths between patients taking Avandia and other diabetes drugs.
“Heart failure can be well managed by using diuretics, and we have to remember that type 2 diabetes itself has devastating consequences, including stroke, blindness, amputation and kidney failure.”
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I've been on Avandia for 2 1/2 years. Just recently, I've been retaining water (this has never happened to me before). I also noticed chest pain (probably ghost pains). I've also been on insulin for 7 months and gained about 15 pounds. Yikes! So, no more----I'm off everything. I walk 2 times a day an hour each time. I eat very little carbs, fat and only moderate protein. Within 2 weeks, I've lost 8 pounds and several inches around my mid-section. Buy the book "Reversing Diabetes" by Dr. Julian Whittaker. It will change your life.
hof, Olympia
Melinda Montgomery, Olympia, WA/USA
My Father has been a Diabetic since 1986. He has always been a smoker but up until 3 years ago very rarely went to the Doctors. Twelve months ago Dad was precribed Metformin and Avandia as a combind drug to help control his Diabetes. Dad has been diagnosed with C.O.P.D. ( lung Disease ) probably due to smoking. However 6 months ago Dad became so ill he was admitted to hospital. Dad was retaining fluid, he was a very poorly man. He could hardly breath. Apparently he had fluid in his ankles, lungs, heart and abdominal cavity. After a couple of weeks Dad was discharged from hospital. Dad now has Oxygen 24 hours a day. He has now been told that he has heart failiure. Dads quality of life is very poor. My Mum now cares for 24-7. I now wonder weather or not this is because of this drug. The odd thing is Dad went to the Doctors the other day and she said to him that she can not understand why he has detiriorated so rapidily. It's to late for my Dad but I thank god it might not be for other's.
Cheryl Morrissey, Merseyside, United Kingdom
A relative of mine has experienced major side effects from both these drugs - large amounts of fluid retention, massive increases in weight (2 stone in 8 weeks) even when following diet & exercise regime, hypoglycaemic attacks, low mood & periods of confusion. she had never experienced these symptoms before as a type II diabetic and after coming off the rosiglitazone, never experienced them again until her GP then prescribed piaglitazone. the same symptoms came back with a vengence...and stopped once she decided to come off them. Of course all drugs have the risk of side-effects but when is enough enough? At least my relative didn't develop heart failure.
EB, Salford, UK
My doctor didn't even inform me of the side effects. I notified him over the phone that I was getting off Avandia. People with diabetes are already at risk for heart disease. Why on earth would a responsible physician escalate the risk? Patients need to keep informed about the risks out there. I know I do!
sherry moll, Gardner, Kansas