Single-Arm Trial

A single-arm trial is a clinical study where all participants receive the same intervention, without a separate control or comparison group. Changes are measured over time, such as comparing participants’ outcomes before and after treatment. Single-arm trials are often used when a control group isn’t practical or feasible as it can still provide meaningful data for product evaluation. Want to see how this study design supports product validation? Read our blog post: “Using Single-Arm Trials to Validate Wellness Products.”