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Summary of study design of all orphan medicinal products (n = 59)
| Number of OMPs (%) (n = 59) | |
|---|---|
|
Control arm | |
| At least one study with placebo or standard of care as control |
44 (74.6%) |
|
Randomization | |
| At least one study with random design |
46 (78.0%) |
|
Blinding | |
| At least one study with double blind design | 34 (57.6%) |
