The trial of a new painkiller has gone drastically wrong in France, leaving one person brain dead and five others in a serious condition.On Friday, one source apparently familiar with the situation initially said the drug was a cannabis-based drug. French Health Minister Marisol Touraine later denied this, however, and said the painkiller contained neither cannabis nor any substance derived from cannabis.The medicine involved works by targeting the body’s pain-controlling endocannabinoid system, which is also responsible for the human response to cannabis.France’s health ministry said that the six volunteers at the facility in Rennes, Brittany, had been in good health until taking the oral medication, which was manufactured by Portugal-based Bial lab and being tested in a Phase I trial in France.The volunteers are all men aged 28 to 49, Touraine told a news conference. They started taking the drug on January 7. One person started feeling ill on Sunday and the other five afterwards.In total, 90 people have taken part in the trial, taking some dosage of the drug, Touraine said, adding that others took a placebo.
The brain dead individual was admitted to hospital in Rennes on Monday. Other patients went in on Wednesday and Thursday. All trials on the drug have now been suspended and all volunteers who have taken part in the trial are being called back.A spokeswoman for the European Medicines Agency in London said it did not have full details of the case but that it was monitoring the situation.Cases of early-stage clinical trials going badly wrong are rare but not unheard of. The last drug trial disaster in Europe occurred in 2006, when six healthy volunteers given an experimental drug in London ended up in intensive care.One of them was described as looking like “the elephant man” after his head ballooned. Another lost his fingertips and toes.In the initial so-called Phase I stage of clinical testing, a drug is given to healthy volunteers to see how it is handled by the body and what is the right dose to give to patients.”Undertaking Phase 1 studies is highly specialist work,” said Daniel Hawcutt, a lecturer in clinical pharmacology at Britain’s University of Liverpool. Medicines then go into larger Phase II and Phase III trials to assess their effectiveness and safety before they are finally approved for sale.