Mark Hensley began his scientific career as a molecular biologist, working on viral vectors for gene therapy. Exposure to the clinical trial environment through that work drew him from working at the bench to developing expertise in epidemiology, biostatistics and clinical trial design.

Traditional clinical trial design has sometimes used approaches that are well-established, but fail to optimize budget, subject risk, and statistical power. Exposure to the inflexible old guard approach made Mark eager to develop his own consultancy, focused on carefully optimized studies implementing industry best practices. In his clinical trial and observational study designs, subsequent statistical analyses, and scientific writing services, Mark is driven to find useful results for clients while balancing the ethical imperative to use only the most valid approaches.