Skip to main content
. 2012 Aug 31;7(8):e44393. doi: 10.1371/journal.pone.0044393

Table 3. Information provided in advertisements for trial registration by year.

Year 2005 2006 2007 2008 2009
Advertisements Total number 54 44 134 236 206
Mean number of pages per advertisement 1.0 1 1.1 1.2 1.0
(SD) (0.1) (0.3) (0.4) (0.1)
Minimum and maximum numbers of pages 1.0 to 2.0 1 to 1 0.5 to 2.0 0.5 to 2.0 0.5 to 2.0
Calls for enrollment ofpatients in registration trials Phase I, n (%) 0 (0.0) 0 (0.0) 5 (3.7) 0 (0.0) 0 (0.0)
Phase II, n (%) 21 (38.9) 15 (34.1) 42 (31.3) 29 (12.3) 46 (22.3)
Phase III, n (%) 16 (29.6) 14 (31.8) 77 (57.5) 201 (85.2) 150 (72.8)
Unknown, n (%) 17 (31.5) 15 (34.1) 10 ′7.5) 6 (2.5) 10 (4.9)
Explanation of trial design Randomization, n (%) 18 (33.3) 17 (38.6) 79 (59.0) 218 (92.4) 158 (76.7)
Blinding, n (%) 14 (25.9) 12 (27.3) 64 (47.8) 138 (58.5) 75 (36.4)
Multiregionality, n (%) 2 (3.7) 0 (0.0) 41 (30.6) 124 (52.5) 56 (27.2)
Brief summary of trial, n (%) 28 (51.9) 16 (36.4) 104 (77.6) 188 (79.7) 145 (70.4)
Primary endpoint, n (%) 1 (1.9) 16 (36.4) 109 (81.3) 199 (84.3) 138 (67.0)
Secondary endpoint, n (%) 1 (1.9) 9 (20.5) 32 (23.9) 28 (11.9) 57 (27.7)
Sample size, n (%) 5 (9.3) 9 (20.5) 37 (27.6) 127 (53.8) 105 (51.0)
Mechanism of action of investigationalagent, n (%) 1 (1.9) 0 (.0) 25 (18.7) 38 (16.1) 56 (27.2)
Code number of clinical trialregistration, n (%) 6 (11.1) 9 (20.5) 19 (14.2) 42 (17.8) 74 (35.9)
Main eligibility criteria 49 (90.7) 36 (81.8) 119 (88.8) 210 (89.0) 127 (61.7)
Cautionary statement of disapprovedindication, n (%) 0 (0.0) 0 (0.0) 89 (66.4) 173 (73.3) 134 (65.1)