Involves only data and/or specimens originally derived from humans = Maybe. If your project
only involves the use of data and/or specimens originally derived from humans then you
might need an IRB file; or, you might qualify for a "Not Human Subjects (NHS)" determination. Follow the NHS check list at the IRB website
https://centernet.fhcrc.org/CN/depts/iro/irb/not_human_subjects_f/index.html to figure out if your research qualifies for NHS.