Regex Python, how to match this string? : I need to take away characters from such type of string:

\xa0(Geändert am 01.Aug. 2013)
\xa0(Geändert am 05.Dez. 2014)


to keep only : 01.Aug. 2013, 05.Dez. 2014


So far I ended up with: [(\xa0)(Geändert)(am)]
but it is not working properly 

[![enter image description here][1]][1]


  [1]: https://i.stack.imgur.com/xGYlQ.png