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Refractive Errors clinical trials

The registry lists 420 studies for Refractive Errors across more than 10 countries. 59 are recruiting or about to start. 226 of them are mainly about Refractive Errors (how this is decided). Per ClinicalTrials.gov, last updated 2026-11-10. Counting its 6 narrower conditions too, such as Myopia: 2,017 studies, 330 open.

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Status

Completed
274
Status unknown
49
Recruiting
30
Not yet recruiting
26
Active, not recruiting
16
Terminated
13

Phase

Phase 3
12
Phase 2
9
Phase 4
9
Phase 1
4

Where

United States
146
China
43
United Kingdom
22
Canada
17
Singapore
13
France
12

Who runs them

Alcon Research (96) · Johnson & Johnson Vision Care, Inc. (20) · Essilor International (17) · Zhongshan Ophthalmic Center, Sun Yat-sen University (13) · CooperVision International Limited (CVIL) (12) · Shanghai Eye Disease Prevention and Treatment Center (10) · Democritus University of Thrace (9) · Tianjin Eye Hospital (8)

What is being tested here

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

DrugOpenPhase 3All
Cyclopentolate103
Tropicamide103
Aceclidine036
Proxymetacaine002
Brimonidine011
Tobramycin001
Dexamethasone001
Ofloxacin001
Benoxinate001
Omega-3 fatty acid001

Drug classes tested here Antimuscarinics 1 open

Coming up

0phase 3 studies under way
21studies finish main data collection within a year

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

The 10 nearest

Who these studies take

Of the 30 Refractive Errors studies recruiting now, 8 (27%) set no upper age limit and 19 (63%) stop at 75 or younger. 16 (53%) take children under 18. 0 (0%) are for women only and 0 (0%) for men only; 18 (60%) take healthy volunteers.

Recruiting studies that take each age, of 30
AgeWomenMen
1014 (47%)14 (47%)
1814 (47%)14 (47%)
3013 (43%)13 (43%)
4016 (53%)16 (53%)
5014 (47%)14 (47%)
6512 (40%)12 (40%)
7511 (37%)11 (37%)
859 (30%)9 (30%)

Across all 420 studies, recruiting or not: 45% stop at 75 or younger and 42% at 65; 31% take children; <1% are for women only and 0% for men only; 43% take healthy volunteers. From each study’s registry entry; the criteria on its page decide.

How long Refractive Errors studies take

Of 172 interventional studies with no phase under Refractive Errors, half reached primary completion within 7 months of starting, counting those still running.

Start to primary completionEvery sponsorIndustryNon-industry
Interventional, no phase7 mo2–23 · 172 studies4 mo1–10 · 115 studies31 mo10–47 · 57 studies
Observational19 mo8–47 · 42 studies—26 mo8–47 · 35 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

What changed recently

From the registry's own updates since Oct 11, 2026.

Stopped1

Newly registered2

Studies

Recruiting first, then most recently updated. Showing 50 of 420. Browse all 420 → or search them.