Is Ampyra a DMT?

Excuse me, but could you clarify whether Ampyra is actually classified as a disease-modifying therapy, or DMT, for those of us who may not be as familiar with the terminology in this field? I understand that Ampyra is a medication used to improve walking in certain patients, but I'm not entirely sure if it fits the criteria for a DMT as typically defined in the medical and pharmaceutical communities. Could you provide some insight into this?