A study’s conclusion needs to be read alongside its design.
Start with the research question
Clinical research studies involve people and follow a protocol. Before interpreting a result, identify who was included, how many people took part, how long they were followed and what was measured.
Look for the comparison
Check whether there was a control group and how the researchers tried to limit bias. A result without that context can be difficult to interpret.
Keep the stage of research in view
Early trials and later trials have different purposes. Early work often investigates safety and how an intervention behaves in the body; later studies investigate efficacy and adverse reactions in larger groups. A preliminary finding does not answer every question.
Read the original source
FDA — clinical research and study design ↗ (opens in a new tab)
These guides explain research concepts. They do not provide individual medical advice or establish the status of any particular product.