I have much experience with protocol development and my protocols have achieved successful registration of products. I write protocols not only by having the therapeutic knowledge base in many cases but also by engaging KOLs to understand their practices and processes as well as including statisticians to ensure we power accurately and who also know about protocol design. Successful studies require understanding of site practice also. Regulations must be met with site practices in mind to keep deviations to a minimum and site engagement to a maximum.
Starting out with feasibility also helps if a therapy area I have not worked with before. I am a natural researcher and so review prior product approvals to understand what has been done before and not reinventing it;but rather improving it!
I spent a lot of time mentoring CRAs and I enjoy training. Successful protocols are one perspective of a successful trial but the other is well trained monitors who know what to look for and how to handle data at the site level. I enjoy mentoring and trainining CRAs. I am processes person. I have created and reviewed so many key study documents that ensure we capture what we need for compliance; IMP Manuals and Logs, Source Document Worksheets, Study Operational Manuals to name a few that should always be study specific and never generic if compliance is the goal.