I second on Dana Jordan's point here that "Psychology transcends into all areas of business." From your background of psychology and management, I think your skill sets can apply to many area. As you are studying in clinical research, I would suggest you look for any Program/Project Management position which can leverage both of your soft (psychology) and hard skills (healthcare, management) to interact with different people to get things done.
Hope that helps!
Its good that you like these disciplines. Go for Human Resource Management. If not then apply for field missions in development sector (non profit sector) where one has to deal with human behaviour and solve their issues through welfare projects and reliefs.
I majored in Business and Psychology so I definitely understand what it's like trying to determine what field to work in whist you have multiple interests. I currently work for PwC in their HR Shared Services Center but I used to work in research. For me I found that I enjoy the subject of psychology but I do not enjoy working in the field (ie. therapy, research etc). I enjoy applying strategy, problem solving and management in the workplace hence why I chose to work in business. I will say psychology transcends into all areas of business. The ability to work on a team, motivate others, interact with different personalities, these are all very important skills that are related to psychology.
My advice to you would be to think about the work applied for each industry to help you determine what career path to choose.
Best of luck!