Neuralink, the neurotech startup co-founded by Elon Musk, announced Thursday it has received approval from the Food and Drug Administration to conduct its first in-human clinical study.

Neuralink is building a brain implant called the Link, which aims to help patients with severe paralysis control external technologies using only neural signals. This means patients with severe degenerative diseases like ALS could eventually regain their ability to communicate with loved ones by moving cursors and typing with their minds.

“This is the result of incredible work by the Neuralink team in close collaboration with the FDA and represents an important first step that will one day allow our technology to help many people,” the company wrote in a tweet.

The FDA and Neuralink did not immediately respond to CNBC’s request for comment. The extent of the approved trial is not known. Neuralink said in a tweet that patient recruitment for its clinical trial is not open yet.