CT.gov Sponsor-Class Hiddenness
2026-03-29 | full-registry ct.gov audit | plots, figures, and e156 bundle
Series
Sponsor-Class Project

Which sponsor classes are worst on rate, and which are biggest on stock?

A standalone public comparison of sponsor classes that separates rate-based failure from absolute disclosure burden.

Sponsor classes
95.7% worst rate
127,704 largest stock
NIH highest named-class score

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.

Class comparison

A standalone E156 project comparing sponsor classes on rate, stock, and structural sparsity rather than flattening everything into one leaderboard.

Worst rate
95.7%
OTHER_GOV
Largest stock
127,704
OTHER
Industry stock
44,007
Still material
NIH score
4.05
Highest named-class mean
Rate versus stock
SPONSOR-CLASS STOCKAbsolute 2-year no-results counts by sponsor classOTHER127,704INDUSTRY44,007OTHER_GOV4,378NIH2,298NETWORK1,645FED1,199INDIV209
OTHER dominates by unresolved stock, but OTHER_GOV is worse on the eligible rate metric.
This is why the project is split: the biggest class by stock is not the same class that looks worst when evaluated as a rate among eligible older studies.
Read Across Projects

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.