clinical trial

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clinical trial

A researcher reviews data from a clinical trial.

Definition
  1. Noun:
    • A scientifically controlled study: A "clinical trial" is a type of research study that follows a strict, pre-defined protocol to evaluate the safety and effectiveness of a new medical intervention, such as a drug, vaccine, device, or treatment procedure, in human participants.
    • A phase of drug development: It specifically refers to the testing phase required by regulatory authorities (like the FDA in the United States) before a new medical product can be approved for widespread public use.
Usage
  • The term "clinical trial" is used as a countable noun. It describes the entire process of testing a medical intervention on people.
  • It is often modified by words indicating its phase (e.g., ), purpose (e.g., ), or the subject of the trial (e.g., ).
Examples
  • Noun:
    • The new vaccine must pass several phases of a clinical trial before it can be licensed.
    • Patients were recruited to participate in a clinical trial testing the efficacy of the new therapy.
    • The results of the clinical trial were published in a major medical journal.
Advanced Usage
  • "to be in a clinical trial" / "to enroll in a clinical trial": To participate as a subject in such a study.
    • She decided to enroll in a clinical trial for a promising new treatment.
  • "to conduct a clinical trial": To carry out or perform the study.
    • The university hospital will conduct the clinical trial.
  • "clinical trial protocol": The detailed plan that a clinical trial follows.
    • All researchers must adhere strictly to the clinical trial protocol.
Variants and Related Words
  • Clinical study: A broader term often used synonymously with "clinical trial," though it can sometimes include observational studies.
  • Trial (in a medical context): Often used as a shorter form, e.g., , .
  • Randomized controlled trial (RCT): A specific, gold-standard type of clinical trial where participants are randomly assigned to different groups.
Synonyms
  • Clinical test: (Formal/Scientific) Often used interchangeably.
  • Clinical research study: A more general synonym.
  • Interventional study: Highlights that the research involves an active intervention.
Related Phrases
  • Clinical trial phase: Refers to the distinct stages (Phase I, II, III, IV) of testing.
    • The drug showed positive results in a Phase II clinical trial.
  • Clinical trial participant/volunteer: A person who takes part in the trial.
  • Clinical trial data: The information collected during the study.
Idioms and Fixed Expressions
  • "To go to clinical trial": To enter the phase of being tested on humans.
    • After successful lab tests, the compound will go to clinical trial next year.
  • "The gold standard of clinical trials": Often refers to a randomized, double-blind, placebo-controlled trial design.
clinical trial

A researcher reviews data from a clinical trial.

Noun
  1. a rigorously controlled test of a new drug or a new invasive medical device on human subjects; in the United States it is conducted under the direction of the FDA before being made available for general clinical use

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