Phase Not Applicable (PNA) Clinical Trial

A Phase Not Applicable (PNA) Clinical Trial is a human clinical trial that is without FDA-defined clinical trial phases,

• Example(s):
  • Medical Device Clinical Trial,
  • Behavioral Intervention Clinical Trial,
  • …
• Counter-Example(s):
  • Preclinical Trial,
  • Phase-0 Clinical Trial,
  • Phase-II Clinical Trial,
  • Phase-III Clinical Trial,
  • Phase-IV Clinical Trial,
• See: Parallel Clinical Trial, Factorial Clinical Trial, Large-Simple Clinical Trial, Adaptive Clinical Trial.

---

---

References

2021c

• (ClinicalTrials.gov, 2021) ⇒ https://clinicaltrials.gov/ct2/about-studies/glossary Retrieved 2022-01-11.
  • QUOTE: Phase Not Applicable: Describes trials without FDA-defined phases, including trials of devices or behavioral interventions.

---