US Patent 11755779 Linking of tokenized trial data to other tokenized data

Systems and methodologies for generating a bridge file linking a subject identifier (Subject ID) (or a tokenized subject identifier), used to anonymize a subject in a trial, to tokenized personal identification information (PII), used to de-identify other data for the subject, without revealing the link between the subject identifier (subject ID) and the personal identifying information (PII) for the subject. The bridge file can then be used to link trial data for the subject anonymized with a subject ID to other data for the subject de-identified with tokenized PII.