Placebo-controlled study

A placebo-controlled study is a type of clinical trial in which a group of participants receives a treatment or intervention being tested, while another group receives a placebo, which is an inactive substance designed to resemble the treatment. The purpose of using a placebo is to provide a comparison that helps researchers determine the effectiveness of the treatment. In this kind of study: 1. **Treatment Group**: Participants receive the actual treatment or drug being investigated.