Project
The key distinction on this page is between systematic opacity and absolute hidden stock, because the class with the worst rate is not the class with the biggest backlog.
OTHER_GOV is worst on rate. OTHER is worst on stock. Industry is still too large to ignore.
A standalone E156 project comparing sponsor classes on rate, stock, and structural sparsity rather than flattening everything into one leaderboard.
Across The Series
The split projects are meant to be read together: one for industry, one for sponsor classes, one for phases, and one for structural missingness.
A standalone E156 project on how much long-past non-disclosure and structural sparsity remain inside industry-linked ClinicalTrials.gov records.
A standalone E156 project on how reporting gaps change by trial phase, showing that phase structure matters alongside sponsor class.
A standalone E156 project on the descriptive fields that disappear from ClinicalTrials.gov even before results reporting is considered.