Opinion ID: 774843
Heading Depth: 4
Heading Rank: 3

Heading: The Short-Term Efficacy Studies

Text: 47 An efficacy study is a study that determines whether Metabolife 356 actually helps people lose weight. It is not designed, at least primarily, to be a safety study. Because of this, the district court held that the efficacy studies are not reliable research methodology for testing the safety of a supplement intended for long-term use. Safety testing is not even the purpose of the study's research design. 72 F. Supp. 2d at 1170. While we decline to create a per se rule about what safety information can be reliably gleaned from efficacy studies, we agree with the district court that any such data generated by the studies at issue in this case lacks sufficient grounding in the scientific method to be admissible under Daubert II. 48