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Discover 4,842 clinical trials near Portland, Oregon. Find research studies in your area.
Showing 501-520 of 4,842 trials
NCT03146078
The overall goal of this project funded by the Foundation Fighting Blindness is to characterize the natural history of disease progression in patients with USH2A related retinal degeneration associated with congenital hearing loss (Usher syndrome type 2a) or non-syndromic retinitis pigmentosa (RP39). RUSH2A Extension Study: The purpose of this addendum is to extend RUSH2A to 7- and 9-year visits, with the goal to use longer term data to further develop and support early candidate endpoints as possible clinical trial outcomes.
NCT05334069
This study collects blood and tissue samples from patients with cancer and without cancer to evaluate tests for early cancer detection. Collecting and storing samples of blood and tissue from patients with and without cancer to study in the laboratory may help researchers develop tests for the early detection of cancers.