Written by: Nuki Mikaberidze

The U.S. Food and Drug Administration cleared the use of the Trevo clot retrieval device to treat patients with acute ischemic stroke up to 24 hours after symptom onset.

The Trevo device was first cleared by the FDA in 2012 to remove a blood clot and restore blood flow in stroke patients who could not receive t-PA or for those patients who did not respond to t-PA therapy. In 2016, the FDA allowed expanded marketing of the device for certain patients in addition to treatment with t-PA if used within six hours of the onset of symptoms. Recently expanded indication increases the amount of time that the device can be used once the symptoms are present.