title_body: Are there any constructed languages designed with a constructed script, both aiming to be international and auxiliary?
upvoted_answer: I found one language called Bliss Symbolics that is
  
  
  It is an International Auxiliary Language
  It has its own character set, not based on Latin characters or any other character set.
  
  
  I also found another IAL that doesn't use latin characters called Temenia that uses Greek characters instead of Latin.  While this language doesn't apply exactly to your question, you seem to be interested in NON-Latin based character IAL's.