Table 1 Overview of RCT characteristics
| Characteristic | Category |
RCT published between Jan.2004 –Mar. 2014 (n. 9), N. (%) |
RCTs published between Apr.2014 – Jun.2018 (n. 8), N. (%) |
Total (n. 17), N. (%) |
|---|---|---|---|---|
| International (if more than one country) | No | 8 (88.9) | 8 (100) | 16 (94.1) |
| Yes | 1 (11.1) | 0 (0) | 1 (5.9) | |
| Industry supported (fully or in part) | No | 6 (66.7) | 7 (87.5) | 13 (76.5) |
| Yes | 3 (33.3) | 1 (12.5) | 4 (23.5) | |
| PRO endpoint | Primary | 5 (55.6) | 0 (0) | 5 (29.4) |
| Secondary | 4 (44.4) | 8 (100) | 12 (70.6) | |
| Secondary paper on PRO | No | 8 (88.9) | 8 (100) | 16 (94.1) |
| Yes | 1 (11.1) | 0 (0) | 1 (5.9) | |
| Length of PRO assessment during RCT | Up to 6 months | 4 (44.5) | 6 (75) | 10 (58.8) |
| Up to 1 year | 2 (22.2) | 1 (12.5) | 3 (17.7) | |
| More than 1 year | 3 (33.3) | 1 (12.5) | 4 (23.5) | |
| Overall study sample size | <=200 | 7 (77.8) | 7 (87.5) | 14 (82.3) |
| > 200 | 2 (22.2) | 1 (12.5) | 3 (17.7) |