eCOA in eSource and early phase trials

Apologies in advance, as I am writing this essay from a position of inexperience and ignorance. My eHealth experience is heavily biased to early phase / clinical pharmacology trials. Rating scales are used quite often and participant diaries are used occasionally. Where I used to see these, they were still pen and paper based or using third party electronic tools from the big vendors and supplied via the sponsor. They were never integrated with or part of the site’s eSource platform.

Having said that I wanted to sketch out some design ideas that have been influenced and informed by my own recent unexpected visits to urgent care in the US and A&E (accident and emergency) in the UK, and multiple follow-up visits since.