Clinical research opportunity but no lab, worth it?

I have an opportunity to volunteer on a clinical trial being conducted at a local hospital, but there is no lab and I'm not sure how long it will last/if it will be a long term commitment. I'm also not sure if I would be able to get an LOR out of it since there isn't really a "PI" since it is a nation-wide clinical trial. Would it still be worth it?
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Source Type: forums