Glaxo chief: Our drugs do not work on most patients

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Glaxo chief: Our drugs do not work on most patients

Postby Gnosty » 09 Feb 2004, 11:50

Glaxo chief: Our drugs do not work on most patients

By Steve Connor, Science Editor
08 December 2003

A senior executive with Britain's biggest drugs company has admitted that most prescription medicines do not work on most people who take them. Allen Roses, worldwide vice-president of genetics at GlaxoSmithKline (GSK), said fewer than half of the patients prescribed some of the most expensive drugs actually derived any benefit from them.

It is an open secret within the drugs industry that most of its products are ineffective in most patients but this is the first time that such a senior drugs boss has gone public. His comments come days after it emerged that the NHS drugs bill has soared by nearly 50 per cent in three years, rising by £2.3bn a year to an annual cost to the taxpayer of £7.2bn. GSK announced last week that it had 20 or more new drugs under development that could each earn the company up to $1bn (£600m) a year.

Drugs for Alzheimer's disease work in fewer than one in three patients, whereas those for cancer are only effective in a quarter of patients. Drugs for migraines, for osteoporosis, and arthritis work in about half the patients, Dr Roses said. Most drugs work in fewer than one in two patients mainly because the recipients carry genes that interfere in some way with the medicine, he said.

"The vast majority of drugs - more than 90 per cent - only work in 30 or 50 per cent of the people," Dr Roses said. "I wouldn't say that most drugs don't work. I would say that most drugs work in 30 to 50 per cent of people. Drugs out there on the market work, but they don't work in everybody."

Therapeutic area: drug efficacy rate in per cent

Alzheimer's: 30%
Analgesics (Cox-2): 80%
Asthma: 60%
Cardiac Arrythmias: 60%
Depression (SSRI): 62%
Diabetes: 57%
Hepatits C (HCV): 47%
Incontinence: 40%
Migraine (acute): 52%
Migraine (prophylaxis)50%
Oncology: 25%
Rheumatoid arthritis 50%
Schizophrenia: 60%

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