Number of trials with results not published on a peer-reviewed journal (PRJ). As given in table 1, the funded feature is not exclusive, and there might be trials which were funded by a combination of the three possible options (National Institutes of Health (NIH), industry and other)
| No of trials | Results not published on PRJ | |
| Phase 3 | 420 | 181 (43.1%) |
| Phase 4 | 43 | 27 (62.8%) |
| NIH funded | 113 | 30 (26.5%) |
| Industry funded | 64 | 26 (40.6%) |
| Other funded | 412 | 189 (45.9%) |
| Total | 463 | 208 (44.9%) |