Cancer drugs approved quickly but not to patient's benefit, researcher says

"Patients and their doctors should demand that regulators require pharma companies to provide clear evidence of clinical effectiveness of the drugs, resulting from rigorous methodology," suggests Lexchin. "Drug agencies like the Food and Drug Administration (FDA) and the European Medicine Agency (EMA) don't actually look at whether people live longer."

In an article in the British Medical Journal, titled "Why do cancer drugs get such an easy ride?," Lexchiin and co-author Donald Light, a professor in the School of Osteopathic Medicine, Rowan University in New Jersey, note that accelerated approval and shortened review times also make it a smooth sail for cancer drugs.

Lexchin cites earlier research reviewing solid cancer drugs within 10 years of EMA approval to point out that these drugs improved survival by just over a month.

"Similarly 71 drugs approved by the FDA from 2002 to 2014 for solid tumours have resulted in median gains in progression-free and overall survival of only 2.5 and 2.1 months, respectively," he says adding, "Also, only 42 per cent met the American Society of Clinical Oncology Cancer Research Committee's criteria for meaningful results for patients."