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ClinicalTrials.gov 727 recruiting now official registry

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.

Phase 3599Phase 2560NA424Phase 1295Phase 481Early Phase 16
Completed1036Recruiting727Active553
Treemap Treemap of 15 categories, sized proportional to value. HIV Infections - 125 HIV Infections 125 Breast Cancer - 53 Breast Cancer 53 Non-Small Cell Lung Cancer - 33 Non-Small C… 33 Cancer - 29 Cancer 29 Stroke - 24 Stroke 24 Sickle Cell Disease - 24 Sickle Cell Disease 24 Prostate Cancer - 23 Prostate C… 23 Lymphoma - 23 Lymphoma 23 HIV-1-infection - 22 HIV-1-infection 22 HIV - 21 HIV 21 Lung Cancer - 20 Lung Cancer 20 Leukemia - 18 Leukemia 18 Hepatocellular Carcinoma - 18 Hepato… 18 HIV Infection - 18 HIV In… 18 Schizophrenia - 18 Schizo… 18

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.

A trial is counted here when it lists at least one in-state site; always confirm eligibility and current status on ClinicalTrials.gov.

States With a Similar Recruiting Share

The closest states nationwide to District of Columbia's 31% of trials currently recruiting.

Source: ClinicalTrials.gov, the US trial registry maintained by the National Library of Medicine, part of the NIH. See our methodology for how this data is sourced and computed.

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.