Comment by mauvehaus

Unrelated to the trial but their UX is a little weak: their signup page at least starts with finding a nearby location. If you start with putting in a ZIP code, it populates the drop down with possible autocompletes. Then when you choose one out of range of a site, you get the error "That address can't be located. Please try again."

That rather suggests an address entry error, not (what I can only infer) is a lack of nearby study sites error.

If you're not near a site for this study, you might also try the Valor study: https://www.valorlymestudy.com/

I am not a doctor, and I cannot speak to the relative merits of one over the other. I'm also too far from either to participate :-/