Topic area | Number of trials | Phase | Number of participants | ||||
---|---|---|---|---|---|---|---|
 |  | I | II | III | IV | N/A |  |
Cancer | 7 | Â | 1 | 4 | 1 | 1 | 27314* |
Cardiac/circulation | 8 | Â | 1 | 4 | 3 | Â | 56335 |
Diabetes | 7 | Â | Â | Â | 3 | 4 | 16350* |
Infectious disease | 25 | 19 | 3 | Â | 1 | 1 | 1737* |
Neo/perinatal | 4 | Â | Â | 1 | 2 | 1 | 7220 |
Nervous system | 2 | Â | Â | 2 | Â | Â | 312 |
Obstetrics/gynaecology | 2 | Â | Â | 1 | 1 | Â | 240 |
Paediatrics | 17 | Â | 8 | 2 | 6 | 1 | 5510 |
Public health/primary care | 1 | Â | Â | Â | 1 | Â | 180 |
Psychiatry | 8 | 1 | 2 | Â | 4 | 1 | 1853 |
Renal | 2 | Â | Â | 1 | 1 | Â | 848 |
Respiratory medicine | 4 | Â | 1 | 1 | 2 | Â | 686 |
Tropical medicines | 53 | 9 | 15 | 8 | 7 | 14 | 36303* |
Total | 140 | 29 | 31 | 24 | 32 | 23 | 154888 |