Table 1.
Characteristics of included trials
| Characteristic | Trials (n = 9) (%) |
|---|---|
| Type of trial | |
| CTIMP | 3 (33%) |
| Device | 1 (11%) |
| Intervention | 5 (56%) |
| Stage of trial | |
| Definitive | 6 (67%) |
| Feasibility | 3 (33%) |
| Funding type | |
| NIHR | 8 (89%) |
| Industry | 1 (11%) |
| Clinical area | |
| Dermatology | 3 (33%) |
| Diabetes | 1 (11%) |
| Gastroenterology | 1 (11%) |
| Hand surgery | 1 (11%) |
| Pregnancy and childbirth | 2 (22%) |
| Sexual health | 1 (11%) |
| Population | |
| Adults | 6 (67%) |
| Paediatric | 2 (22%) |
| Adults and paediatric | 1 (11%) |
| Sample size | |
| Mean (SD) | 549.6 (648.6) |
| Median (IQR) | 269 (180, 517) |
| Min, Max | 50, 1900 |
| Length of recruitment (months) | |
| Mean (SD) | 23.6 (11.7) |
| Median (IQR) | 22.4 (17.1, 26.1) |
| Min, Max | 10.0, 44.4 |
| Number of sitesa | |
| Mean (SD) | 13.9 (8.1) |
| Median (IQR) | 16 (8, 22) |
| Min, Max | 3, 25 |
All data are N (%) unless otherwise stated
CTIMP Clinical Trial of an Investigational Medicinal Product, IQR interquartile range, NIHR National Institute for Health Research (any programme)
aOne trial was international and for this study only the UK sites are included