Table 2

Location of registration for phase I, Devices and Other trials, and how the registrations were found. Figures in parenthesis are percentages rounded to the nearest whole number

Phase IDevicesOtherTotal
Number of eligible trials (excluding 18 trials with deferral)67205327599
Registration details found on HRA database (total) 8 59 43 110
 ISRCTN011718
 clinicaltrials.gov8572590
 Other*0112
Registration details found after manual search (total) 50 79 166 295
 ISRCTN1137993
 clinicaltrials.gov496685200
 Other*0022
Total found to be registered 58 (87%) 138 (67%) 209 (64%) 405 (68%)
 ISRCTN1 (2%)14 (10%)96 (46%)111 (27%)
clinicaltrials.gov57 (98%)123 (89%)110 (53%)290 (72%)
 Other*0 (0%)1 (1%)3 (1%)4 (1%)
  • *The Australian New Zealand Clinical Trials Registry (ANZCTR), EU Clinical Trials Register and German Clinical Trials Register (GermanCTR).

  • HRA, Health Research Authority; ISRCTN, International Standard Randomised Controlled Trial Number Registry.