But you have to point out that there is no cure, no treatment, no drug. As a medical communicator, it's your responsibility to make that clear. With absolute honesty. You write that there's a development and that researchers are excited about it. You should also point out that the new step was published in a peer-reviewed journal.
Most people have no idea what that means, but it's a plus.
But having set the stage, you now need to guard yourself and your readers. Against undue optimism that a cure is coming. So, it's not so hard to write about medical progress that can lead to cure even if it doesn't. It happens all the time.