AUG 12, 2026 · OBSERVATIONAL STUDY
I-OPERA: A European Study Testing a New Way to Do Health Research.
ClinicalTrials.gov
This is an observational pilot study testing a methodological approach (participant-mediated data collection) rather than a clinical intervention, with no results yet reported and enrollment not yet started.
Reported
Planned enrollment105
Enrollment per countryapproximately 35 per participating country
Primary outcome domain 1Self-reported descriptive and participant-r…