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Clinical trials in District of Columbia
Every US clinical trial with a study site in District of Columbia - recruiting status, phase mix, and the conditions and sponsors driving research in the state, from the NIH ClinicalTrials.gov registry.
District of Columbia has 2,316 registered US clinical trials with a study site in-state, 727 of them currently recruiting (above the 14% national average by 17 percentage points). 599 of these trials are in Phase 3 (late-stage) and 560 in Phase 2. The most frequently studied condition in District of Columbia is HIV Infections, with 125 linked trials.
The state picture
District of Columbia has 2,316 registered clinical trials with sites in-state, 727 of them open to new participants right now, about 31% of the state's indexed portfolio.
- 727
- recruiting participants now
- 31%
- of in-state trials open to enrollment
- 599
- in Phase 3 (late-stage)
- 125
- top condition: HIV Infections
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 | 1,036 |
| Recruiting | 727 |
| Active | 553 |
By Phase
| Phase | Trial count |
|---|---|
| Phase 3 | 599 |
| Phase 2 | 560 |
| NA | 424 |
| Phase 1 | 295 |
| Phase 4 | 81 |
| Early Phase 1 | 6 |
Top Conditions
Top Sponsors
Reading the Clinical Trial Landscape in District of Columbia
ClinicalTrials.gov lists 2,316 clinical trials with study locations in District of Columbia. Of those, 727 are currently recruiting, roughly 31% of the state's indexed portfolio, above the 14% national average by 17 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 District of Columbia is "Completed" with 1,036 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 District of Columbia, regardless of sponsor type.
The phase distribution shown above breaks the same trials down by where they sit along the investigational pathway. For District of Columbia, Phase 3 accounts for 599 indexed trials and Phase 2 accounts for 560. 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 District of Columbia is HIV Infections with 125 linked trials, across 15 top condition areas surfaced above. On the sponsor side, National Cancer Institute (NCI) leads with 90 studies tied to District of Columbia, 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 District of Columbia, 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 District of Columbia
727 trials in District of Columbia are open to new participants, here's how to act on that.
- Browse the 727 recruiting trials with sites in District of Columbia, filtered to your area. Recruiting in District of Columbia
- HIV Infections is the most-studied condition here, see its national picture. HIV Infections 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 District of Columbia's 31% 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.