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Color Vision Defects clinical trials

The registry lists 62 studies for Color Vision Defects across more than 10 countries. 11 are recruiting or about to start. 23 of them are mainly about Color Vision Defects (how this is decided). Per ClinicalTrials.gov, last updated 2026-09-11.

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Status

Completed
35
Recruiting
9
Active, not recruiting
6
Terminated
4
Status unknown
3
Suspended
3

Phase

Phase 2
11
Phase 1
9
Early Phase 1
4
Phase 3
3
Phase 4
2

Where

United States
27
United Kingdom
8
Germany
6
Canada
5
Pakistan
5
Sweden
4

Who runs them

MeiraGTx UK II Ltd (4) · Pakistan Institute of Living and Learning (3) · University of California, San Francisco (3) · Beacon Therapeutics (3) · University Hospital Tuebingen (3) · University of Oklahoma (2) · Karolinska Institutet (2) · University of Colorado, Denver (2)

What is being tested here

Drugs under test in Color Vision Defects studies, those with the most open studies first. Medicines only given beside them are not counted. How drugs are counted

DrugOpenPhase 3All
Cannabidiol112
TPI-287001
Ciliary Neurotrophic Factor001
Dronabinol001
Phenylbutyric acid001
Medical Marijuana011
Gosuranemab001

Coming up

2phase 3 studies under way
6studies finish main data collection within a year1 of them phase 3

Studies recruiting or running, from their records. “Main data collection” ends at the primary completion date, the sponsor’s own estimate, which often moves.

All 6, phase 3 first

Who these studies take

Of the 9 Color Vision Defects studies recruiting now, 6 (67%) set no upper age limit and 2 (22%) stop at 75 or younger. 4 (44%) take children under 18. 0 (0%) are for women only and 1 (11%) for men only; 6 (67%) take healthy volunteers.

Recruiting studies that take each age, of 9
AgeWomenMen
102 (22%)2 (22%)
186 (67%)6 (67%)
308 (89%)9 (100%)
408 (89%)8 (89%)
508 (89%)8 (89%)
658 (89%)8 (89%)
757 (78%)7 (78%)
857 (78%)7 (78%)

Across all 62 studies, recruiting or not: 32% stop at 75 or younger and 29% at 65; 34% take children; 3% are for women only and 6% for men only; 31% take healthy volunteers. From each study’s registry entry; the criteria on its page decide.

How long Color Vision Defects studies take

Of 14 interventional studies with no phase under Color Vision Defects, half reached primary completion within 17 months of starting, counting those still running.

Start to primary completionEvery sponsorIndustryNon-industry
Interventional, no phase17 mo6–30 · 14 studies——

Each figure is the month by which half the studies had reached primary completion, with the range in which the middle half did. Studies still running count until their last registry update; studies that stopped early are left out. Phase 1 includes early phase 1; observational means prospective or not stated, as retrospective and cross-sectional studies date a window of data rather than a study. How these figures are worked out

Studies

Recruiting first, then most recently updated. Showing 50 of 62. Browse all 62 → or search them.