Medical Information Only. Consult your healthcare provider before enrolling in any clinical trial.
Clinical trials in Texas
3,731 of 9,951 in-state trials are recruiting (37%); roughly in line with the 37% national average, with Phase 2 weight.
According to ClinicalTrials.gov-derived indexes, Texas sits in the top decile of US states by in-state trial count (#4 of 52 states by registered in-state trial count).
Texas: 9,951 US clinical trials with in-state sites, 3,731 recruiting.
Texas has 9,951 registered US clinical trials with a study site in-state, 3,731 of them currently recruiting (roughly in line with the 37% national average). 1,201 of these trials are in Phase 3 (late-stage) and 2,311 in Phase 2. The most frequently studied condition in Texas is Breast Cancer, with 210 linked trials.
Peer research-density states
Texas is in the top decile by in-state trial count. Nearest hubs by indexed volume (not open-share twins):
- New York (10,554)
- Florida (10,986)
- Massachusetts (7,667)
- Pennsylvania (6,946)
- Illinois (6,854)
Ranked from 51 other states with active in-state trials by how close each state's indexed trial count sits to Texas's.
In-line with national open share
Texas tracks 9,951 in-state trials with 3,731 open (37%), roughly in line with the 37% national average within about 1-2 points of the 37% national figure.
- 37%
- open (near national share)
- 3,731
- recruiting participants now
- 1,201
- Phase 3 (late-stage)
- 210
- top: Breast Cancer
Recruiting share is roughly in line with the 37% national average. Counts include every study with at least one recorded site in the state. Registry reference only, not medical advice.
Texas 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)
9,951 Top 8% more indexed trials than 92% 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 Texas 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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Texas open-enrollment share matches the national baseline.
3,731 of 9,951 in-state trials (37.5%) are recruiting, against 37% nationally (+0.5 percentage points). Counts include every study with at least one recorded site in the state.
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Houston dominates Texas's trial geography.
Houston lists 5,133 of 9,951 in-state trials (51.6%) across 1,277 named facilities. Cities need five or more listed trials to appear here; locations are as filed by sponsors.
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Breast Cancer is the most-studied condition in Texas.
210 of 9,951 in-state trials (2.1%) list Breast Cancer. That is a local concentration figure, not a national disease ranking.
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One sponsor accounts for a large share of Texas trials.
M.D. Anderson Cancer Center appears on 1,252 of 9,951 in-state trials (12.6%). Sponsor identity is as filed on ClinicalTrials.gov.
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4,056 Texas trials carry a completed status.
4,056 of 9,951 (40.8%) are completed. The open share above is the remainder that still lists recruiting.
By Status
| Status | Trial count |
|---|---|
| Completed | 4,056 |
| Recruiting | 3,731 |
| Active | 2,164 |
By Phase
| Phase | Trial count |
|---|---|
| Phase 1 | 2,553 |
| Phase 2 | 2,311 |
| NA | 2,112 |
| Phase 3 | 1,201 |
| Phase 4 | 364 |
| Early Phase 1 | 107 |
Top Conditions
Top Sponsors
Where trials run in Texas
Houston carries 5,133 of Texas's 9,951 indexed trials (52%) across 1,277 named sites, ahead of Dallas at 2,342. 8 cities clear five listed trials, together naming 3,889 distinct sites.
| City | Trials | Listed sites |
|---|---|---|
| Houston | 5,133 | 1,277 |
| Dallas | 2,342 | 902 |
| San Antonio | 1,602 | 798 |
| Austin | 993 | 538 |
| Fort Worth | 316 | 156 |
| Galveston | 183 | 50 |
| Tyler | 147 | 78 |
| El Paso | 127 | 90 |
Distinct trials and named sites per city, as filed with ClinicalTrials.gov; cities under five trials omitted. Vintage 2026-08-08.
Recruiting-slot high
Texas lists 3,731 recruiting trials (p98 by absolute open slots).
Texas: absolute recruiting slots sit high among states
Sites spread across 8 cities with five or more listed trials, led by Houston (5,133, 52% of the state total) and Dallas (2,342), together naming 3,889 distinct research locations.
Phase mix: 1,201 Phase 3 vs 2,311 Phase 2 (early-phase heavy).
Top condition: Breast Cancer (210 trials); top sponsor M.D. Anderson Cancer Center (1252).
high-volume · high-open figures (9,951 trials · 37% open) describe registry geography under the recruiting-slot high read, not clinic capacity or protocol fit. Confirm status on ClinicalTrials.gov before acting.
States near Texas on absolute recruiting slots
Cross-state peers under the recruiting-slot high read (high-volume · high-open), not the same-state browse list.
Similar high-volume hubs (± open share)
- New York · 10,554 trials · 35% recruiting
- Florida · 10,986 trials · 33% recruiting
- Massachusetts · 7,667 trials · 35% recruiting
- Pennsylvania · 6,946 trials · 34% recruiting
- Illinois · 6,854 trials · 33% recruiting
Similar high-open peers (± trial volume)
- Wisconsin · 37% recruiting · 1,760 trials
- Utah · 38% recruiting · 1,734 trials
- West Virginia · 36% recruiting · 277 trials
- Minnesota · 36% recruiting · 4,506 trials
- Virginia · 40% recruiting · 2,598 trials