I don't know if it's still an open Q, but since i found it while looking for the same thing, here's how I did it.
Once you have the Entry objects, get their Value with getValue, this/these will be EnumTypedefinition object(s).
Then one of the properties of an EnumTypeDefinition object is "Enumerals", hence:
enumDefList = <enumTypeDefObject>.Enumerals
will return a structure array holding Name, Value and Description of the enumerated type.
I'm using 2020a at the moment.