Why Limit Awareness Trial Usage Surveys (ATUs) to HCPs? Patients and Caregivers Provide Needed Insights By Richard Tsai One online glossary defining ATUs (Awareness, Trial, and Usage studies) described them, in part, as “survey[s] to measure consumer awareness, trial, and product usage for a product category and/or brand...” But in a pharma marketing context, it seems as if the participant in the study is almost always presumed to be the prescriber. More than one source researched for this article was written with that assumption. For example, an article on current updates on how ATUs are implemented [...]