French drug trial disaster leaves one brain dead, five injured

French Health Minister Marisol Touraine and Gilles Hedan, professor of clinical neurology, attend a news conference in Rennes, France, Jan 15, 2016. One person has been left brain dead and five others are in a serious condition after taking part in a clinical trial in France of an experimental medicine from an unnamed drug company, the French Health Ministry says[Photo/Agencies]

PARIS - One person has been left brain dead and five others have been hospitalised after taking part in a clinical trial in France of an experimental drug made by Portuguese drug company Bial, French Health Minister Marisol Touraine said on Friday.

In total, 90 people have taken part in the trial, taking some dosage of the drug aimed at tackling mood and anxiety issues, as well as movement coordination disorders linked to neurological issues, Touraine said.

The six men aged 28 to 49 had been in good health until taking the oral medication at the Biotrial private facility that specialises in clinical trials, she said.

"This is unprecedented," Touraine told a news conference after meeting volunteers and their families in Rennes, western France. "We'll do everything to understand what happened."

Prosecutors have opened an investigation into the case.

The six men started taking the drug on Jan 7. The brain-dead volunteer was admitted to hospital on Monday, the minister said.

For three of the five others - who went in on Wednesday and Thursday - there are fears of irreversible handicap, doctor Gilles Edan said, though he still hoped that would not be the case. One of the six had no symptoms but was being carefully monitored, he said.

Testing had already been carried out on animals, including chimpanzees, starting in July, Touraine said.

All trials on the drug have now been suspended and all volunteers who have taken part in the trial are being called back, the health ministry added.

The medicine involved is a so-called FAAH inhibitor that works by targeting the body's endocannabinoid system, which is also responsible for the human response to cannabis.

Bial said in a statement it was committed to ensuring the wellbeing of test participants and was working with authorities to discover the cause of the injuries, adding that the clinical trial have been approved by French regulators.

The company said five people, rather than six, had been hospitalised, including one left brain dead, without explaining the discrepancy with the official French figures.

Cases of early-stage clinical trials going badly wrong are rare but not unheard of. In 2006, six healthy volunteers given an experimental drug in London ended up in intensive care. One was described as looking like "the elephant man" after his head ballooned. Another lost his fingertips and toes.

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