Navigation Links
Investigation into safety of new diabetes drugs -- will manufacturers release their data?

The BMJ and Channel 4 Dispatches investigated and found that evidence suggesting potential harm from the drugs in industry studies has not been published.

Some independent studies challenge the conclusions of the drugs manufacturers' own research. Now some medical experts and patient groups are calling on the pharmaceutical companies to be more transparent in reporting of study data and to enter into dialogue about safety concerns.

As a result, millions of patients around the world have not been fully informed about some of the possible risks.

Some critics say the drug regulators in Europe and the US have been slow to pursue concerns about the potential adverse effects of these new diabetes drugs, despite the emerging warning signs in the medical literature, regulatory documents, and adverse event databases.

Full details will be published on on Monday 10 June and broadcast in Diets, Drugs and Diabetes Channel 4 Dispatches on Monday 10 June at 8pm on Channel 4.

GLP-1 based drugs are used to treat type 2 diabetes by regulating blood sugar. Some of these drugs also suppress appetite and are currently being tested as a possible treatment for obesity.

In the course of this investigation, the BMJ has reviewed thousands of pages of regulatory documents obtained under freedom of information and found unpublished data pointing to "unwanted proliferative or inflammatory pancreatic effects."

The BMJ has also found that, despite published reports that indicated safety concerns, companies have not done certain critical safety studies; nor have regulators requested them yet. And access to raw data that might help resolve doubts about the safety of these drugs has been denied.

Dr Deborah Cohen, the BMJ's Investigation Editor, says: "On their own the individual pieces of unpublished evidence may seem inconclusive, but when considered alongside other emerging and long standing evidence, a worrying picture emerges, posing serious questions about the safety of this class of drug."

Three publications this year have raised concerns long held by some experts about the potential side effects of GLP-1 based drugs, prompting both the US Food and Drug Administration (FDA) and the European Medicines Agency (EMA) to launch a review into whether the drugs may cause or contribute to the development of pancreatic cancer. And in America, hundreds of people are suing manufacturers alleging that the drugs caused pancreatitis and in some cases cancer.

Yet the evidence is fiercely contested amongst scientists and manufacturers stoutly defending the safety of their products.

Some argue that the published evidence against the drugs is weak, while others say we can't yet be sure that these drugs are safe and are calling for all the study data to be made public for independent analysis.

Research by Professor Peter Butler at the University of California Los Angeles, for example, found worrying changes in the pancreases of animals that received a GLP-1 based drug. He has also found abnormal changes, including pre-cancerous lesions, in the pancreases of eight organ donors taking GLP-1 based drugs compared with patients taking other anti-diabetic drugs.

And studies of side effects reported to the regulators have also started turning up cases of pancreatic cancer among patients on GLP-1 based drugs. Both EMA and the FDA have confirmed to the BMJ that they have "signal" for pancreatic cancer - but this does not mean there is a causal link.

Together these findings raise important and troubling questions about a possible link between these diabetes drugs and pancreatic cancer, but no safety alert has yet been issued by the regulators.

More information is expected later this month, when the US National Institutes of Health hold a two-day meeting on possible links between diabetes, diabetes drugs and pancreatic cancer.

But some consumer groups are calling for the drugs to be withdrawn as a diabetes treatment to prevent potential harm to patients while we wait for this evidence and they don't want to see them licensed as an obesity treatment.

Writing in the BMJ, Dr Fiona Godlee, Editor in Chief said: "All drug licensing is about balancing benefits and risks. But instead of engaging in open debate about legitimate and important scientific questions, the manufacturers have been unwilling to share their data. Meanwhile patients and doctors have not been kept properly informed about the uncertainties surrounding these drugs."

She adds: "The debate would be much easier to resolve if all the information was placed in the public domain so scientists, doctors and ultimately patients could make up their own minds."

In an editorial in the BMJ, Edwin Gale, Professor of diabetic medicine, says this shows once again that current regulatory procedures are inadequate to deal with the challenge of drug treatments that have more than one biological target, which he calls "shotgun therapies." He says: "Similar scenarios will be re-enacted while secrecy rules and the companies control access to the data."

In statements to Channel 4 Dispatches airing tonight, the drug companies all maintain their commitment to patient safety. On monitoring, the companies all say they have regular, close and vigorous safety processes in place, including large scale, long term trials, and the results are routinely submitted to the regulatory authorities.


Contact: Emma Dickinson
BMJ-British Medical Journal

Related medicine news :

1. Former HHS Inspector General to Outline Proven Strategies for Implementing an Internal Investigation
2. DePuy Pinnacle Lawsuit News: Bernstein Liebhard LLP Notes New Order in Federal Pinnacle Litigation Requiring Production of Monitoring Reports from Federal Investigation
3. Method patent issued for investigational new class of pain medication
4. Investigational agent targets gene signaling pathways to improve response for patients with CLL
5. $1.8 million grant supports investigation of psoriasis link to cardiovascular disease
6. CRF announces late breaking trials and first report investigations to be presented at TCT 2012
7. Pitman Manor Garners Community Safety Award
8. Mesh Lawsuit News: Bernstein Liebhard LLP Comments on Study to Investigate Safety, Benefits of Boston Scientific Mesh
9. Buckle up the right way: Motor vehicle child safety restraints
10. Kidpower’s Summer Safety Tips: Simple Skills to Help Kids Be Safer at Summer Camp & Rec Programs, at Home and on Trips
11. Entertainment Industries Council’s Center for Skin Cancer Prevention Encourages Skin-Safe Practices During Sun Safety Week
Post Your Comments:
(Date:11/30/2015)... ... 30, 2015 , ... Until now, the St. Louis Fetal Care Institute ... of Myelomeningocele Study) trial. One of these exclusion criteria was a BMI above 34.9. ... to 24.9 is considered normal, 25 - 29.9 is overweight and above 30 is ...
(Date:11/30/2015)... ... November 30, 2015 , ... Thermi™, a world ... announce that its ThermiRFR temperature controlled radiofrequency platform has received CE marking and ... platform which uses temperature as a clinical endpoint. The technology has been ...
(Date:11/30/2015)... ... November 30, 2015 , ... The world of hair transplants and restoration is ... These techniques and procedures have been in use for many years and are among ... Parsa Mohebi, M.D. has utilized many of these methods over the years, he also ...
(Date:11/30/2015)... ... November 30, 2015 , ... The presidential race normally ... styling. So why is it a national news story when Donald Trump makes disparaging ... M.D., because appearances count more than anyone wants to admit when it comes to ...
(Date:11/30/2015)... , ... November 30, 2015 , ... According to Los ... people to overeat are not necessarily caused by real hunger, but instead by ... needs food. He notes that, while many patients are aware that weight loss surgery ...
Breaking Medicine News(10 mins):
(Date:11/30/2015)... 2015   Royal Philips  (NYSE: PHG ... Radiology Solutions, a fully integrated, consultative approach to ... data-driven practice management approaches that combine imaging systems, ... improve care delivery and reduce costs. Making its ... North America Annual Meeting (RSNA) in ...
(Date:11/30/2015)... -- global cell culture market is expected to ... by 2022 at a CAGR of 7.1% therein. --> ... 2013 value of US$6.1 bn to US$11.3 bn by 2022 at ... has announced the release of a new market research study, detailing ... Culture Market - Global Industry Analysis, Size, Share, Growth, Trends and ...
(Date:11/30/2015)... , Nov. 30, 2015   Royal Philips ... Implant, the industry,s first MRI guided user interface and ... of patients with MR Conditional implants, such as knee ... 2015 Radiological Society of North America Annual Meeting ... and supports diagnostic confidence of this growing patient population. ...
Breaking Medicine Technology: