Investigational Drug

/ɪnˌvɛstɪˈɡeɪʃənəl drʌɡ/

Definitions

  1. (n.) A pharmaceutical compound or substance that has not yet been approved by regulatory authorities for general medical use and is used primarily in clinical trials to assess safety and efficacy.
    The investigational drug showed promising results in the Phase III clinical trial.

Forms

  • investigational drug
  • investigational drugs

Commentary

The term is commonly defined in regulatory law and clinical research contexts; precise legal definitions may vary by jurisdiction but generally align with FDA and international regulatory standards.

This glossary is for general informational and educational purposes only. Definitions are jurisdiction-agnostic but reflect terminology and concepts primarily drawn from English and American legal traditions. Nothing herein constitutes legal advice or creates a lawyer-client relationship. Users should consult qualified counsel for advice on specific matters or jurisdictions.

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