Conducting a study, writing the article, submitting it, leaving time for reviewers to read it and give their critical answer (usually a month), answering to reviewers and getting it accepted (or not, which means rewriting or even doing more experiments, and sending back to the reviewers and giving them more time again) can take several months or more than a year. So in the mean time I think it can be interesting to have the name of this doctor just so that we can check his previous works on DP if any. It also helps if we want to put an alert and get the information automatically when he publishes something new.As you read, he said that the doctors are writing the article, and I am eager to read it like you, and I will definitely ask the names of the doctors and the link to the article, I will do whatever help I can, wherever I am in the world. You don't know how happy I am because I can't believe that an article about Biperiden is being written for DP by two Iranian doctors. I must find these two doctors and tell them about my experience and become one of the cases.
I am in touch with you through this site and will share the latest news of these two doctors
Also where I live I believe you can't even start the study unless you have submitted your project to a board that checks if the study is ethical or not. After all, they are doing experiments on human beings, and if you are going to give medicines to people that are not approved by the 'FDA' of your country for that specific disease, and then if you are going to advertise about it, this is useful too. This usually takes time too.