Hearing loss trials, also abroad
286 open Hearing loss trials worldwide. Travel and costs are your own unless the study pays them; ask the study team first.
| Country | Open trials |
|---|---|
| United States | 113 |
| France | 51 |
| China | 26 |
| United Kingdom | 18 |
| Germany | 15 |
| Canada | 11 |
| Belgium | 10 |
| Netherlands | 10 |
| Spain | 9 |
| Türkiye | 8 |
| Taiwan | 7 |
| Austria | 6 |
| Denmark | 5 |
| Switzerland | 4 |
| Egypt | 4 |
| Sweden | 4 |
| Finland | 3 |
| Poland | 3 |
| Hong Kong | 2 |
| Italy | 2 |
| South Korea | 2 |
| Thailand | 2 |
| South Africa | 2 |
| Brazil | 1 |
| Czechia | 1 |
| Hungary | 1 |
| Israel | 1 |
| Japan | 1 |
| Kenya | 1 |
| Norway | 1 |
| Pakistan | 1 |
The same trial often runs in several countries
Otoferlin Gene-mediated Hearing Loss Natural History Study has 1 site in Australia and runs in 7 countries. If a site near you is full, another one may still take people.
See Otoferlin Gene-mediated Hearing Loss Natural History Study in all 7 countries