Table 2 Protocol characteristics of academic clinical drug trials by type of study, continued
From: From protocol to published report: a study of consistency in the reporting of academic drug trials
Type of study | ||||
|---|---|---|---|---|
Total n (%) | Exploratory n (%*) | Confirmatory n (%*) | P | |
Number of controlled trials | 76 | 26 | 50 | - |
Design | ||||
Parallel | 38 (50 %) | 11 (42 %) | 27 (54 %) | 0.33 |
Cross-over | 37 (49 %) | 14 (54 %) | 23 (46 %) | 0.52 |
Other | 1 (1 %) | 1 (4 %) | 0 (0 %) | 0.34** |
Blinding | 57 (75 %) | 16 (62 %) | 41 (82 %) | 0.051 |
Randomization | 69 (91 %) | 20 (77 %) | 49 (98 %) | 0.006 |