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Drug

OT-551 clinical trials

studies test it
3
open now
0
in phase 3
0
first study started
2005

How each study uses OT-551 is sorted by a rule, right about nine times in ten. Readers can ask us to read every study one by one.Ask us to read each study

Approvals

The first approval found in each region, with its record

United States
Not in FDA's approval records
European Union
Not in EMA's list of EU-wide authorisations

From FDA's Drugs@FDA and Purple Book (through openFDA) and the European Medicines Agency, files of Sept 2026 and 27 Oct 2026. National approvals in Europe and other countries are not included. How this is worked out

How studies write it

Studies that test it under each name

Development codes

OT-551
1

Studies by the year they started

3 studies that test it; most in 2005 (1)

Studies that test OT-551, by start year
YearStudies
20051
20061
20071

By phase

A phase 1/2 study counts in both.

Phase 2
3

What it is tested for

Each study’s main condition, where its own words name it, so a study counts once.

Geographic Atrophy
2
Epiretinal Membrane
1

Who runs them

Industry 2 · Other 1

Othera Pharmaceuticals (2) · National Institutes of Health Clinical Center (CC) (1)

Studies

Open first, then newest update. How each study uses OT-551 is read from its arms, and is right about nine times in ten. Ask us to read each study. These are the studies that list it as an intervention; a search of ClinicalTrials.gov also finds studies that mention it only in a description, such as earlier treatment.

Testing it · 3

Codes

What other systems call OT-551 · ClinicalTrials.gg INT005648

“Confirmed” means two independent publishers link the code to this drug; “one source”, one does and its name agrees.