Nothing is confirmed20 Jul 2020 08:59
The results have not been published in a peer-reviewed journal, nor has the full data been made available; so the BBC cannot confirm the claims made for the treatment.
But if the results are as the company says, it will be a very important step forward in the treatment of coronavirus infections.
The scientist in charge of the trial, Tom Wilkinson, says if the results are confirmed in larger studies the new treatment will be "a game changer".
More news due and more tests will add certainty to this.