" The most commonly prescribed antidepressant barely relieves symptoms of modern depression, a major study reveals.
The largest independent investigation ever undertaken found patients taking sertraline experienced negligible improvements in mood.
Published in the Lancet Psychiatry, the study comes amid mounting controversy over increased use of antidepressants by GPs in recent decades, with roughly 7.3 million people in England issued a prescription each year.
Its authors said they were “shocked and surprised” by the results, and called for the development of new classes of medication.
Professor Glyn Lewis, who led the research at University College London, said: “We were shocked and surprised when we did our analysis.
“There is absolutely no doubt this is an unexpected result.’
“Our primary hypothesis was that it would affect those depressive symptoms at six weeks and we didn’t find that.
“We definitely need better treatments for depression, and we need more research in this area."
He suggested that new, more effective classes of antidepressants could be based on ketamine, psilocybin, the psychedelic in magic mushrooms, and anti-inflammatories."
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