A compound name alone does not reveal whether evidence comes from a laboratory experiment, a study in nonhuman animals, an observational study, a registered clinical study, or an FDA-reviewed product. The FDA describes research and product review as distinct stages in its official development and approval overview.

Start with five questions

  1. What exact claim is being made? Separate a measured outcome from a broad interpretation.
  2. What was studied? Identify the exact material, model, population, and comparison.
  3. What kind of evidence is it? Laboratory, animal, observational, interventional, and regulatory records answer different questions.
  4. Where is the original record? Look for a publication record, trial registration, FDA review record, or official label.
  5. What remains uncertain? Read limitations, missing outcomes, conflicts, and whether the findings were independently repeated.

A database entry is not an endorsement

ClinicalTrials.gov states that the U.S. government does not review or approve the safety and science of every study listed in the registry. The responsible party submits the record. Read the registry's scope and disclaimer information before treating a listing as evidence that an intervention works.

PubMed is a literature-search system maintained by the National Library of Medicine. Its official user guide explains record fields, publication types, filters, and links to available text. A search result still needs to be read and evaluated in context.

Keep status words precise

“Studied,” “registered,” “published,” “investigational,” and “approved” describe different facts. When approval is relevant, verify the particular product in an official FDA record instead of inferring status from a general compound name.

Source record

Authoritative sources

  1. U.S. Food and Drug Administration Development & Approval Process Official overview of how drug research and review are organized.
  2. National Library of Medicine PubMed User Guide Official help for searching and interpreting PubMed records.
  3. ClinicalTrials.gov About ClinicalTrials.gov Explains what the registry contains and what a listing does not establish.