I think that it has already been commented on some thread, but this documentary of 2022 seems very important to me: it tries to bring the unknown-for-to-all the society type 1 diabetes, and boost research to find a cure.
The documentary deals with a clinical trial in people with type 1 diabetes.
The web is also interesting and has links to hospitals and universities that are conducting clinical trials in the world, including Spain.

Thehumantrial.com

In the US it has been shown in cinemas this summer.Let's see if they take a version with subtitles and something similar is done in Spain.