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| Wieloośrodkowe badanie fazy IV× | Wieloośrodkowe badanie kliniczne z randomizacją× | |
|---|---|---|
| Dziedzina | Epidemiologia | Epidemiologia |
| Rodzina | Process / pipeline | Process / pipeline |
| Rok powstania≠ | 1980s–1990s (formalized with post-marketing requirements in modern drug regulation) | 1970s–1980s (widespread adoption for large-scale efficacy trials) |
| Twórca≠ | Regulatory agencies and pharmaceutical industry (ICH E2E, FDA, EMA post-marketing frameworks) | Evolved from single-center RCT methodology; consolidated through landmark trials such as the MRC streptomycin trial (1948) and large cardiovascular mega-trials of the 1970s–1980s |
| Typ≠ | Observational or interventional post-marketing study | Interventional experimental design |
| Źródło pierwotne≠ | Strom, B. L., & Kimmel, S. E. (Eds.). (2005). Textbook of Pharmacoepidemiology. John Wiley & Sons. ISBN: 978-0470029619 | Friedman, L. M., Furberg, C. D., DeMets, D. L., Reboussin, D. M., & Granger, C. B. (2015). Fundamentals of Clinical Trials (5th ed.). Springer. ISBN: 978-3319185385 |
| Inne nazwy | multicenter post-marketing study, multicenter pharmacovigilance study, multi-site phase IV study, post-authorization safety study | multi-site RCT, multicenter RCT, multinational randomized trial, multicenter controlled trial |
| Pokrewne | 6 | 6 |
| Podsumowanie≠ | A multicenter Phase IV study is a post-marketing surveillance investigation conducted simultaneously at two or more clinical or research sites after a drug, device, or intervention has received regulatory approval. By pooling real-world data from diverse patient populations and geographic regions, it detects rare adverse events, evaluates long-term effectiveness, characterizes safety in subgroups, and fulfills regulatory post-authorization commitments that single-site studies cannot achieve. | A multicenter randomized clinical trial (RCT) is an experimental study in which eligible participants are randomly assigned to intervention or control arms simultaneously across two or more clinical sites. By combining the rigor of randomization with enrollment from geographically or institutionally diverse centers, this design produces large samples and externally valid effect estimates that single-center trials rarely achieve. It is the regulatory gold standard for confirmatory efficacy and safety evaluation of new treatments. |
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