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Condition (MeSH)

Eye Diseases

ClinicalTrials.gov lists 14,560 trials for Eye Diseases or a narrower condition beneath it. Alcon Research has the most among industry and government lead sponsors, with 536.

MeSH D005128 Eye Diseases C11
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Phase 1 Phase 1 867 Phase 1/2 Phase 1/2 502 Phase 2 Phase 2 1,393 Phase 2/3 Phase 2/3 247 Phase 3 Phase 3 1,326 Phase 4 Phase 4 1,255 Not applicable Not applicable 5,205 Observational Observational 3,732 Phase 1 Phase 1 867 Phase 1/2 Phase 1/2 502 Phase 2 Phase 2 1,393 Phase 2/3 Phase 2/3 247 Phase 3 Phase 3 1,326 Phase 4 Phase 4 1,255 Not applicable Not applicable 5,205 Observational Observational 3,732

Trials per phase (log scale)

2 more sections with rows

386 of the 14,560 trials are tagged with Eye Diseases itself; the rest are tagged with a narrower condition beneath it.

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The PDF carries up to 50 rows of each section, where the page shows the first few, with the sources listed. Enter a work email and confirm it from the message we send, and the report follows by email.

When did Eye Diseases trials start? (37)

Shown in this order: most recent first, 1990 onwards. 2026 is partial: trials registered with a 2026 start date so far, not a full year. 24 trials are registered to start in 2027 or later, and not listed here.

Trials over time, by phase

  • Phase 1
  • Phase 1/2
  • Phase 2
  • Phase 2/3
  • Phase 3
  • Phase 4
  • Not applicable
  • Observational
  • Other (Expanded access, Unknown)

Top of scale: 891

1990: 5 trials (Observational 1, Phase 3 3, Phase 2 1) 1991: 1 trials (Observational 1) 1992: 14 trials (Observational 4, Phase 3 8, Phase 2 2) 1993: 9 trials (Observational 2, Not applicable 2, Phase 3 4, Phase 2 1) 1994: 12 trials (Observational 5, Not applicable 1, Phase 3 1, Phase 2/3 2, Phase 2 2, Phase 1 1) 1995: 14 trials (Observational 6, Not applicable 1, Phase 3 4, Phase 2/3 1, Phase 2 2) 1996: 12 trials (Observational 4, Not applicable 1, Phase 3 3, Phase 2 2, Phase 1 2) 1997: 33 trials (Observational 11, Not applicable 4, Phase 3 7, Phase 2 7, Phase 1 4) 1998: 25 trials (Observational 10, Not applicable 3, Phase 4 1, Phase 3 1, Phase 2 5, Phase 1/2 1, Phase 1 4) 1999: 44 trials (Observational 12, Not applicable 3, Phase 4 2, Phase 3 9, Phase 2/3 2, Phase 2 12, Phase 1/2 1, Phase 1 3) 2000: 59 trials (Observational 20, Not applicable 11, Phase 4 3, Phase 3 9, Phase 2/3 1, Phase 2 7, Phase 1/2 1, Phase 1 7) 2001: 63 trials (Observational 10, Not applicable 7, Phase 4 8, Phase 3 18, Phase 2/3 3, Phase 2 6, Phase 1/2 2, Phase 1 9) 2002: 85 trials (Observational 22, Not applicable 6, Phase 4 14, Phase 3 12, Phase 2/3 2, Phase 2 16, Phase 1/2 1, Phase 1 12) 2003: 108 trials (Other 1, Observational 23, Not applicable 18, Phase 4 12, Phase 3 17, Phase 2/3 2, Phase 2 17, Phase 1/2 7, Phase 1 11) 2004: 171 trials (Observational 41, Not applicable 38, Phase 4 18, Phase 3 28, Phase 2/3 3, Phase 2 27, Phase 1/2 4, Phase 1 12) 2005: 263 trials (Observational 53, Not applicable 54, Phase 4 37, Phase 3 59, Phase 2/3 10, Phase 2 27, Phase 1/2 4, Phase 1 19) 2006: 337 trials (Observational 64, Not applicable 67, Phase 4 47, Phase 3 61, Phase 2/3 17, Phase 2 41, Phase 1/2 12, Phase 1 28) 2007: 438 trials (Observational 93, Not applicable 94, Phase 4 71, Phase 3 59, Phase 2/3 9, Phase 2 57, Phase 1/2 14, Phase 1 41) 2008: 467 trials (Observational 120, Not applicable 127, Phase 4 71, Phase 3 34, Phase 2/3 11, Phase 2 58, Phase 1/2 19, Phase 1 27) 2009: 483 trials (Observational 93, Not applicable 128, Phase 4 74, Phase 3 52, Phase 2/3 11, Phase 2 71, Phase 1/2 28, Phase 1 26) 2010: 550 trials (Observational 104, Not applicable 178, Phase 4 78, Phase 3 64, Phase 2/3 10, Phase 2 68, Phase 1/2 20, Phase 1 28) 2011: 557 trials (Observational 143, Not applicable 163, Phase 4 62, Phase 3 61, Phase 2/3 7, Phase 2 60, Phase 1/2 27, Phase 1 34) 2012: 524 trials (Observational 123, Not applicable 175, Phase 4 52, Phase 3 51, Phase 2/3 8, Phase 2 57, Phase 1/2 27, Phase 1 31) 2013: 541 trials (Observational 135, Not applicable 188, Phase 4 63, Phase 3 49, Phase 2/3 5, Phase 2 56, Phase 1/2 24, Phase 1 21) 2014: 594 trials (Other 1, Observational 155, Not applicable 205, Phase 4 43, Phase 3 59, Phase 2/3 11, Phase 2 61, Phase 1/2 26, Phase 1 33) 2015: 582 trials (Observational 149, Not applicable 223, Phase 4 48, Phase 3 39, Phase 2/3 6, Phase 2 62, Phase 1/2 24, Phase 1 31) 2016: 583 trials (Observational 144, Not applicable 244, Phase 4 44, Phase 3 47, Phase 2/3 9, Phase 2 50, Phase 1/2 15, Phase 1 30) 2017: 601 trials (Observational 165, Not applicable 264, Phase 4 47, Phase 3 26, Phase 2/3 6, Phase 2 53, Phase 1/2 15, Phase 1 25) 2018: 745 trials (Other 2, Observational 197, Not applicable 330, Phase 4 33, Phase 3 60, Phase 2/3 10, Phase 2 50, Phase 1/2 18, Phase 1 45) 2019: 731 trials (Other 3, Observational 199, Not applicable 292, Phase 4 40, Phase 3 58, Phase 2/3 18, Phase 2 53, Phase 1/2 32, Phase 1 36) 2020: 746 trials (Other 2, Observational 234, Not applicable 278, Phase 4 54, Phase 3 46, Phase 2/3 19, Phase 2 55, Phase 1/2 25, Phase 1 33) 2021: 891 trials (Other 3, Observational 233, Not applicable 342, Phase 4 72, Phase 3 64, Phase 2/3 15, Phase 2 92, Phase 1/2 21, Phase 1 49) 2022: 828 trials (Other 1, Observational 238, Not applicable 348, Phase 4 43, Phase 3 63, Phase 2/3 13, Phase 2 61, Phase 1/2 19, Phase 1 42) 2023: 823 trials (Observational 255, Not applicable 352, Phase 4 35, Phase 3 46, Phase 2/3 15, Phase 2 55, Phase 1/2 24, Phase 1 41) 2024: 819 trials (Other 1, Observational 237, Not applicable 345, Phase 4 48, Phase 3 60, Phase 2/3 7, Phase 2 47, Phase 1/2 22, Phase 1 52) 2025: 810 trials (Other 1, Observational 226, Not applicable 335, Phase 4 45, Phase 3 47, Phase 2/3 4, Phase 2 62, Phase 1/2 36, Phase 1 54)

Trials registered with a start date in each year, 1990 onward, stacked by phase (complete years only; the current partial year is in the table's notes). The table below lists the same counts, most recent years first.

Trials started per year
Year Trials started
2026 (partial year) 774
2025 810
2024 819
2023 823
2022 828
2021 891
2020 746
2019 731
2018 745
2017 601

Forecast of the full-year count, planned starts included, not rows of this table: about 960 trials starting in 2026 and about 840 in 2027, the average of the 24 months through September, counted as registered and carried forward, with about 0.7 times the starts already registered for the rest of 2026 added. The rows of this table count trials registered so far with a start date in the year, planned starts included; the forecast looks ahead to the count for the whole year, so it is not the same measure. In backtests on conditions of this size, forecasts made part-way through the year were typically off by about 10 percent and ran about 4 percent high against the count later registered; forecasts made before the year began were off by about 25 percent and ran about 15 percent low against the count later registered, and had about 7 percent more error than repeating last year's count. The part-way figures are from forecasts that used a multiple fitted only on earlier years. A stricter check that trains only on older years did not support adding planned starts for conditions of this size: it ran about 6 percent high against the count later registered. These figures rest on a few years of history (target years from 2018 to 2025, varying by figure), place each condition as it is mapped today rather than as it was then, and score against a count for the newest year that was still being revised. Only condition series were scored.

Prediction, not a registry value: median of 35 months from start to primary completion across 1,101 trials still running at the 2026-10-09 snapshot; registered median of 16 months across 8,964 trials with a primary completion typed Actual. Source: ClinicalTrials.gov / AACT (CTTI), public domain.

What phase are Eye Diseases trials in? (10)

Shown in this order: phase order.

Show the trials by phase as a table
Trials by phase
Phase Trials
Phase 1 867
Phase 1/2 502
Phase 2 1,393
Phase 2/3 247
Phase 3 1,326
Phase 4 1,255
Not applicable 5,205
Observational 3,732
Expanded access 20
Unknown 13

How many Eye Diseases trials are recruiting? (12)

Shown in this order: the order a trial moves through, from not yet recruiting to unknown.

Trials by recruitment status
Status Trials
Not yet recruiting 611
Recruiting 1,370
Enrolling by invitation 128
Active, not recruiting 522
Available 5

Status as registered on ClinicalTrials.gov. Each trial is counted once.

Which lead sponsors run the most Eye Diseases trials? (8)

Shown in this order: most trials first. Lead sponsors the registry classes as industry, NIH, US federal, other government or network. A hospital or university the registry files as government can appear here. Sponsors it classes as academic or other are shown on the full page, because that class cannot separate an institution from a named investigator.

Lead sponsors
Sponsor Trials
Alcon Research 536
National Eye Institute (NEI) 238
Allergan 202
Bausch & Lomb Incorporated 161
CooperVision, Inc. 150

Which drugs are being tested for Eye Diseases? (3)

Shown in this order: most trials first. One row per drug, matched to a single molecule under all its names, ranked by number of trials.

Drugs tested
Drug Trials
PREDNISOLONE 41
METHYLPREDNISOLONE 37
Ganciclovir 36

Interventions as named in the registry (12)

Shown in this order: most trials first.

Interventions as named in the registry
Drug Trials
ranibizumab PRN 320
2.0 aflibercept 202
Bevacizumab 1 136
Cataract surgery 109
Apo-Latanoprost 94

These are the names sponsors entered on ClinicalTrials.gov that we have not matched to a single molecule. Some are drugs under a brand or code name; others are procedures, doses or arm labels.

Which serious adverse events do Eye Diseases trials report? (10)

Shown in this order: most subjects affected first. Subjects affected summed across trials, a cross-trial signal, not a rate.

Serious adverse events in this condition's trials
Adverse event Subjects affected Trials
Invasive cancer of any type 1,617 1
Pneumonia 988 252
Major cardiovascular event 805 1
Myocardial infarction 786 149
Gastrointestinal bleeding 746 3

Which publications cover Eye Diseases? (489)

Shown in this order: major-topic papers first, then newest, then most linked to trials.

Publications
Publication Journal Year Major topic
Exposure-safety Markov modeling of ocular adverse events in patient populations treated with tisotumab vedotin. Journal of pharmacokinetics and pharmacodynamics 2025 Yes
[EyeMatics-Multicenter data evaluation of real-world data with interoperable medical informatics]. Die Ophthalmologie 2025 Yes
Optimizing instilled drug delivery: a scoping review of microdrops in ophthalmology. Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie 2025 Yes
Patient Navigators Improve In-Office Eye Exam Adherence After Community Eye Screenings in a Randomized Clinical Trial: NYC-SIGHT Study. American journal of ophthalmology 2025 Yes
Enhancing Ophthalmic Diagnosis and Treatment with Artificial Intelligence. Medicina (Kaunas, Lithuania) 2025 Yes

Sub-conditions in MeSH (26)

MeSH descendants one level down with at least one trial, most trials first.

+16 more sub-conditions

Not on this page

Not measured: delivery record.

Checked, with nothing recorded for this condition: prevalence and rare-disease identity.

Browse all condition evidence pages