import re
test1 = '\n\nDisclaimer ...........................\t10\n\nITOM - IT Object Model ...............\t11\n\nDB – Datenbank Model..................\t11\n\nDB - Datenbank Model - Views .........\t12'
print ([line.split('...')[0].strip() for line in test1.splitlines() if line.strip()])
print ([re.sub(r'\s*\.+\s*\d+\s*$', '', line) for line in test1.splitlines() if line.strip()])
print( re.findall(r'^(.*?)[^\S\n]*\.+[^\S\n]*\d+[^\S\n]*$', test1, re.M) )