Medical Information Only. Consult your healthcare provider before enrolling in any clinical trial.
Kentucky: below-average open trial sites
700 of 2,183 in-state trials are recruiting (32%); below the 37% national average by 5 percentage points.
According to ClinicalTrials.gov-derived indexes, Kentucky sits in the upper half of US states by in-state trial count (#26 of 52 states by registered in-state trial count).
Kentucky: 2,183 US clinical trials with in-state sites, 700 recruiting.
Kentucky has 2,183 registered US clinical trials with a study site in-state, 700 of them currently recruiting (below the 37% national average by 5 percentage points). 622 of these trials are in Phase 3 (late-stage) and 540 in Phase 2. The most frequently studied condition in Kentucky is Non-Small Cell Lung Cancer, with 58 linked trials.
Mid-pack research density
Kentucky sits in the upper half of the state corpus, so volume is meaningful but not hub-scale. Use condition and sponsor rollups below to see what drives the in-state mix.
Below-average open enrollment
Kentucky still shows 700 recruiting of 2,183 in-state trials (32% open), but below the 37% national average by 5 percentage points, so archived statuses weigh heavier than the national baseline.
- 32%
- open (below national share)
- 700
- still recruiting despite cool share
- 540
- Phase 2 rows in this footprint
- 58
- top: Non-Small Cell Lung Cancer
Recruiting share is below the 37% national average by 5 percentage points. Counts include every study with at least one recorded site in the state. Registry reference only, not medical advice.
Kentucky vs all states by indexed in-state trial count
Where this state's ClinicalTrials.gov site count sits among every state with at least one listed trial (coverage density, not care quality)
2,183 Top 50% more indexed trials than 50% of 52 states
States, banded by indexed in-state trial count
Each bar is a band; taller bars hold more states. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source ClinicalTrials.gov · 2026-08-08
Key findings
What ClinicalTrials.gov does not surface for Kentucky on its own pages , computed from the registry mirror as of 2026-08-08. Each line carries its own denominator so it can be quoted as it stands.
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Kentucky open-enrollment share sits below the national baseline.
700 of 2,183 in-state trials (32.1%) are recruiting, against 37% nationally (-4.9 percentage points). Counts include every study with at least one recorded site in the state.
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Louisville dominates Kentucky's trial geography.
Louisville lists 1,101 of 2,183 in-state trials (50.4%) across 516 named facilities. Cities need five or more listed trials to appear here; locations are as filed by sponsors.
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Non-Small Cell Lung Cancer is the most-studied condition in Kentucky.
58 of 2,183 in-state trials (2.7%) list Non-Small Cell Lung Cancer. That is a local concentration figure, not a national disease ranking.
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Kentucky sponsorship is fragmented across many organizations.
University of Louisville appears on 85 of 2,183 in-state trials (3.9%). Sponsor identity is as filed on ClinicalTrials.gov.
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985 Kentucky trials carry a completed status.
985 of 2,183 (45.1%) are completed. The open share above is the remainder that still lists recruiting.
By Status
| Status | Trial count |
|---|---|
| Completed | 985 |
| Recruiting | 700 |
| Active | 498 |
By Phase
| Phase | Trial count |
|---|---|
| Phase 3 | 622 |
| Phase 2 | 540 |
| NA | 408 |
| Phase 1 | 273 |
| Phase 4 | 102 |
| Early Phase 1 | 14 |
Top Conditions
Top Sponsors
Where trials run in Kentucky
Louisville carries 1,101 of Kentucky's 2,183 indexed trials (50%) across 516 named sites, ahead of Lexington at 849. 8 cities clear five listed trials, together naming 989 distinct sites.
| City | Trials | Listed sites |
|---|---|---|
| Louisville | 1,101 | 516 |
| Lexington | 849 | 306 |
| Edgewood | 67 | 38 |
| Owensboro | 66 | 39 |
| Bardstown | 49 | 24 |
| Bowling Green | 47 | 27 |
| Paducah | 45 | 29 |
| Crestview Hills | 18 | 10 |
Distinct trials and named sites per city, as filed with ClinicalTrials.gov; cities under five trials omitted. Vintage 2026-08-08.
Trial size small
Kentucky's in-state trials target 1,188 patients on average (p24 by trial size among 52 states with enrollment data), smaller studies than most states.
Kentucky: in-state trial volume sits mid-pack
Sites spread across 8 cities with five or more listed trials, led by Louisville (1,101, 50% of the state total) and Lexington (849), together naming 989 distinct research locations.
Phase mix: 622 Phase 3 vs 540 Phase 2 (balanced across stages).
Top condition: Non-Small Cell Lung Cancer (58 trials); top sponsor University of Louisville (85).
mid-volume · mid-open figures (2,183 trials · 32% open) describe registry geography under the trial size small read, not clinic capacity or protocol fit. Confirm status on ClinicalTrials.gov before acting.
States near Kentucky on in-state trial volume
Cross-state peers under the trial size small read (mid-volume · mid-open), not the same-state browse list.
Similar mid-volume peers (± open share)
- Kansas · 2,080 trials · 29% recruiting
- District of Columbia · 2,316 trials · 31% recruiting
- Oregon · 1,999 trials · 34% recruiting
- Arkansas · 2,376 trials · 28% recruiting
- Louisiana · 1,936 trials · 28% recruiting
Similar mid-open peers (± trial volume)
- Connecticut · 32% recruiting · 3,531 trials
- Georgia · 32% recruiting · 5,195 trials
- Missouri · 33% recruiting · 4,116 trials
- Washington · 33% recruiting · 2,795 trials
- Vermont · 31% recruiting · 191 trials