That is a good question. I’m a Paramedic, so the physicians here could answer better. HIPAA addresses these use of PHI (protected health information), not to my knowledge it’s collection.

Information if de-identified in these trials. A researcher may be able to determine that a patient received leronlimab, but know who that patient is.

I believe that clinical tests run do not require specific authorization. My wife has been through a bit medically, and I/we have never had to consent for specific tests (including those that ended with egregious costs as out of network immuno assays).

I hope this is helpful.