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Cellectis Cancer Trials Suspended by U.S. FDA After Fatality

Sept. 5, 2017, 4:24 PM

Cellectis SA said the U.S. Food and Drug Administration suspended two studies for an experimental treatment for blood cancers after the company reported the death of a patient.

The agency stopped the trials after a 78-year-old male died on the ninth day after he was given Cellectis’s treatment, called UCART123, the Paris-based company said in a statement. The patient suffered from cytokine release syndrome, a dangerous immune system response, as well as capillary leak syndrome, in which large volumes of plasma and other blood components leak out of the blood vessels.

A patient in a different trial, a 58-year-old ...