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Clinical trials in Ohio
Every US clinical trial with a study site in Ohio - recruiting status, phase mix, and the conditions and sponsors driving research in the state, from the NIH ClinicalTrials.gov registry.
Ohio has 6,514 registered US clinical trials with a study site in-state, 2,298 of them currently recruiting (above the 14% national average by 21 percentage points). 998 of these trials are in Phase 3 (late-stage) and 1,446 in Phase 2. The most frequently studied condition in Ohio is Breast Cancer, with 93 linked trials.
The state picture
Ohio has 6,514 registered clinical trials with sites in-state, 2,298 of them open to new participants right now, about 35% of the state's indexed portfolio.
- 2,298
- recruiting participants now
- 35%
- of in-state trials open to enrollment
- 998
- in Phase 3 (late-stage)
- 93
- top condition: Breast Cancer
Counts include every study with at least one recorded site in the state, from the public ClinicalTrials.gov registry. Reference information, not medical advice.
By Status
| Status | Trial count |
|---|---|
| Completed | 2,797 |
| Recruiting | 2,298 |
| Active | 1,419 |
By Phase
| Phase | Trial count |
|---|---|
| NA | 1,580 |
| Phase 2 | 1,446 |
| Phase 1 | 1,158 |
| Phase 3 | 998 |
| Phase 4 | 283 |
| Early Phase 1 | 56 |
Top Conditions
Top Sponsors
Reading the Clinical Trial Landscape in Ohio
ClinicalTrials.gov lists 6,514 clinical trials with study locations in Ohio. Of those, 2,298 are currently recruiting, roughly 35% of the state's indexed portfolio, above the 14% national average by 21 percentage points, which is a rough but useful proxy for how much research activity is presently open to new participants relative to the rest of the country. The largest status group for Ohio is "Completed" with 2,797 entries, which sets the overall tone of the registry footprint in this geography. These counts are drawn from the public registry maintained by the National Library of Medicine and are reflected here exactly as indexed; they include every study with at least one site recorded in Ohio, regardless of sponsor type.
The phase distribution shown above breaks the same trials down by where they sit along the investigational pathway. For Ohio, Phase 3 accounts for 998 indexed trials and Phase 2 accounts for 1,446. Phase 2 studies typically evaluate early efficacy and refine dosing, while Phase 3 studies run larger and are usually closer to regulatory submission, so a state with a strong Phase 3 count often reflects established research centers working on late-stage programs, while a heavier Phase 1 and Phase 2 weighting can indicate concentrations of academic medical centers and early-stage investigator networks. Phase markers come directly from the sponsor-reported registry field and are not transformed on this site.
The most frequently indexed condition for Ohio is Breast Cancer with 93 linked trials, across 15 top condition areas surfaced above. On the sponsor side, Ohio State University leads with 233 studies tied to Ohio, with 9 additional organizations in the visible top list. Together, these breakdowns give a quick sense of which conditions and organizations drive trial activity in Ohio, but they do not describe treatment availability, local clinic capacity, or the chance of being matched to any specific study. All numbers come from ClinicalTrials.gov and should be used for reference only, verify current status and eligibility directly on ClinicalTrials.gov, and always discuss clinical trial participation with a qualified healthcare provider before making any decision.
What this means if you're in Ohio
2,298 trials in Ohio are open to new participants, here's how to act on that.
- Browse the 2,298 recruiting trials with sites in Ohio, filtered to your area. Recruiting in Ohio
- Breast Cancer is the most-studied condition here, see its national picture. Breast Cancer trials
- Compare research activity in other states before deciding where to look. All states
A trial is counted here when it lists at least one in-state site; always confirm eligibility and current status on ClinicalTrials.gov.
Read our methodology - how this data is sourced, computed, and verified.
States With a Similar Recruiting Share
The closest states nationwide to Ohio's 35% of trials currently recruiting.
Related
Every figure on PlainTrial is rendered directly from the ClinicalTrials.gov registry, no number is typed in by an editor. This page aggregates every registered clinical trial within this state, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.