The Food and Drug Administration has removed a clinical hold it placed on Juno's mid-stage cancer drug trial after three patients died, according to Reuters.
The FDA halted the study for JCAR015 last week following the death of three patients who died after a chemotherapy agent called fludarabine was added to the trial.
The FDA is allowing Juno to continue the trial under a new protocol that does not include fludarabine.
JCAR015 is an experimental T cell therapy that involves extracting a patient's immune system T cells, altering their DNA to improve their ability to detect and kill cancer cells, and then infuse them back into the patient.
Shares of the Seattle-based drug company jumped 28 percent after the FDA lifted the clinical hold.
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