Medical Information Only. Consult your healthcare provider before enrolling in any clinical trial.
Louisiana: below-average open trial sites
534 of 1,936 in-state trials are recruiting (28%); below the 37% national average by 9 percentage points.
According to ClinicalTrials.gov-derived indexes, Louisiana sits in the lower half of US states by in-state trial count (#29 of 52 states by registered in-state trial count).
Louisiana: 1,936 US clinical trials with in-state sites, 534 recruiting.
Louisiana has 1,936 registered US clinical trials with a study site in-state, 534 of them currently recruiting (below the 37% national average by 9 percentage points). 585 of these trials are in Phase 3 (late-stage) and 483 in Phase 2. The most frequently studied condition in Louisiana is HIV Infections, with 56 linked trials.
Lower-half Louisiana archive
Louisiana's in-state trials target 14,186 patients on average (p90 by trial size among 52 states with enrollment data), larger, multi-site studies than most states. Treat this page as a compact local index (mid-volume · low-open), then jump to recruiting trials or methodology rather than expecting hub-scale coverage.
Below-average open enrollment
Louisiana still shows 534 recruiting of 1,936 in-state trials (28% open), but below the 37% national average by 9 percentage points, so archived statuses weigh heavier than the national baseline.
- 28%
- open (below national share)
- 534
- still recruiting despite cool share
- 483
- Phase 2 rows in this footprint
- 56
- top: HIV Infections
Recruiting share is below the 37% national average by 9 percentage points. Counts include every study with at least one recorded site in the state. Registry reference only, not medical advice.
Louisiana 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)
1,936 Top 56% more indexed trials than 44% 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 Louisiana 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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Louisiana open-enrollment share sits below the national baseline.
534 of 1,936 in-state trials (27.6%) are recruiting, against 37% nationally (-9.4 percentage points). Counts include every study with at least one recorded site in the state.
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Louisiana trial sites spread across 8 city hubs.
New Orleans lists 901 of 1,936 in-state trials (46.5%) across 365 named facilities. Cities need five or more listed trials to appear here; locations are as filed by sponsors.
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HIV Infections is the most-studied condition in Louisiana.
56 of 1,936 in-state trials (2.9%) list HIV Infections. That is a local concentration figure, not a national disease ranking.
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Louisiana sponsorship is fragmented across many organizations.
Pennington Biomedical Research Center appears on 88 of 1,936 in-state trials (4.5%). Sponsor identity is as filed on ClinicalTrials.gov.
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947 Louisiana trials carry a completed status.
947 of 1,936 (48.9%) are completed. The open share above is the remainder that still lists recruiting.
By Status
| Status | Trial count |
|---|---|
| Completed | 947 |
| Recruiting | 534 |
| Active | 455 |
By Phase
| Phase | Trial count |
|---|---|
| Phase 3 | 585 |
| Phase 2 | 483 |
| NA | 361 |
| Phase 1 | 157 |
| Phase 4 | 100 |
| Early Phase 1 | 12 |
Top Conditions
Top Sponsors
Where trials run in Louisiana
New Orleans carries 901 of Louisiana's 1,936 indexed trials (47%) across 365 named sites, ahead of Baton Rouge at 355. 8 cities clear five listed trials, together naming 943 distinct sites.
| City | Trials | Listed sites |
|---|---|---|
| New Orleans | 901 | 365 |
| Baton Rouge | 355 | 143 |
| Shreveport | 302 | 180 |
| Metairie | 154 | 104 |
| Lafayette | 65 | 45 |
| Marrero | 64 | 35 |
| Covington | 56 | 41 |
| Lake Charles | 52 | 30 |
Distinct trials and named sites per city, as filed with ClinicalTrials.gov; cities under five trials omitted. Vintage 2026-08-08.
Trial size large
Louisiana's in-state trials target 14,186 patients on average (p90 by trial size among 52 states with enrollment data), larger, multi-site studies than most states.
Louisiana: in-state trial volume sits mid-pack
Sites spread across 8 cities with five or more listed trials, led by New Orleans (901, 47% of the state total) and Baton Rouge (355), together naming 943 distinct research locations.
Phase mix: 585 Phase 3 vs 483 Phase 2 (balanced across stages).
Top condition: HIV Infections (56 trials); top sponsor Pennington Biomedical Research Center (88).
mid-volume · low-open figures (1,936 trials · 28% open) describe registry geography under the trial size large read, not clinic capacity or protocol fit. Confirm status on ClinicalTrials.gov before acting.
States near Louisiana on in-state trial volume
Cross-state peers under the trial size large read (mid-volume · low-open), not the same-state browse list.
Similar mid-volume peers (± open share)
- Oregon · 1,999 trials · 34% recruiting
- Kansas · 2,080 trials · 29% recruiting
- Wisconsin · 1,760 trials · 37% recruiting
- Utah · 1,734 trials · 38% recruiting
- South Carolina · 1,706 trials · 35% recruiting
Similar low-open peers (± trial volume)
- Mississippi · 27% recruiting · 500 trials
- Arkansas · 28% recruiting · 2,376 trials
- Nevada · 27% recruiting · 900 trials
- Idaho · 26% recruiting · 633 trials
- Alabama · 29% recruiting · 4,168 trials