randomized trials

Randomized trials are scientific studies used to test how well a new treatment or intervention works. Participants are randomly assigned to different groups—typically one group gets the new treatment, and another gets standard treatment or a placebo. This process helps ensure that the groups are similar in all other respects. By comparing outcomes between these groups, researchers can determine whether the new treatment is effective and safe. Randomization reduces bias and increases confidence that the results are due to the treatment itself, making findings more reliable for informing medical decisions.