Remove unclosed brackets python re

How to remove unclosed brackets and its contents if after they have closed block. For example:

  "(eaardf((eaar)(eaar" -> "eaardf((eaar)"

I do so, but I can not make a correct regex:

 import re

 str1 = '(eaardf((eaar)(eaar'
 p = re.compile(r'\([a-z)]*.*')
 p.sub('', str1)
 >>> ''

Please help!