Yes, clinicians and researchers from different part of the world are already using the IOP-29. You can find more information on the official website (https://www.iop-test.com/#/) and you can write directly to the authors, Luciano Giromini and Donald Viglione ([email protected]).
Indeed, at the Society for Personality Assessment (SPA) Annual Convention in New Orleans, LA, there will be many authors talking about the accuracy of the IOP-29 in different contexts (for more information, please see http://storage.jason-mohr.com/www.personality.org/General/pdf/SPA%202019%20Conference%20Program%20Book_web1.pdf).