The Pharmapendium Efficacy Module FAQ Sheet provides information about the following:

• Which reference standard is used to classify the indications categories?
• How was the endpoint taxonomy developed?
• What sources are used for efficacy data extraction?
• How often is the content updated?
• How do I get the associated activity, pharmacokinetic, metabolizing enzymes and transporters, and/or drug safety data for drugs which are retrieved from my Efficacy Search?
• Can I export the data?
• I have found that some drugs have no data for Phase I or Phase II trials.
  Why is that?
• Why is the interface for the Efficacy Module different than
  the other data modules?
• What are the years associated with the Age Groups?
• How do I interpret a combined age group such as “Adult-Aged”?
• Why is it that the numbers do not match when I select Placebo
  (under the “Placebo/Non-Placebo” Filter) and under the comparative group?
• When I start a search with Indications, why do I not see any preclinical data?

You can view the document here.