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ClinicalTrials.gov 508 recruiting now official registry

Clinical trials in Iowa

Every US clinical trial with a study site in Iowa - recruiting status, phase mix, and the conditions and sponsors driving research in the state, from the NIH ClinicalTrials.gov registry.

Iowa has 1,544 registered US clinical trials with a study site in-state, 508 of them currently recruiting (above the 14% national average by 19 percentage points). 360 of these trials are in Phase 3 (late-stage) and 367 in Phase 2. The most frequently studied condition in Iowa is Breast Cancer, with 35 linked trials.

The state picture

Iowa has 1,544 registered clinical trials with sites in-state, 508 of them open to new participants right now, about 33% of the state's indexed portfolio.

508
recruiting participants now
33%
of in-state trials open to enrollment
360
in Phase 3 (late-stage)
35
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.

Phase 2367Phase 3360NA322Phase 1181Phase 463Early Phase 122
Completed658Recruiting508Active378
Treemap Treemap of 15 categories, sized proportional to value. Breast Cancer - 35 Breast Cancer 35 Non-Small Cell Lung Cancer - 24 Non-Small Cell Lung C… 24 Obesity - 21 Obesity 21 Cystic Fibrosis - 20 Cystic Fibrosis 20 Multiple Myeloma - 19 Multiple Mye… 19 Lung Cancer - 16 Lung Cancer 16 Heart Failure - 16 Heart Failure 16 Ovarian Cancer - 14 Ovarian Cancer 14 Influenza - 13 Influenza 13 Colorectal Cancer - 13 Colorectal C… 13 Healthy - 12 Healthy 12 Type 2 Diabetes - 11 Type 2 Diabe… 11 Sarcoma - 11 Sarcoma 11 Chronic Lymphocytic Leukemia - 11 Chronic Lymphocytic Leukemia 11 Depression - 11 Depression 11

Reading the Clinical Trial Landscape in Iowa

ClinicalTrials.gov lists 1,544 clinical trials with study locations in Iowa. Of those, 508 are currently recruiting, roughly 33% of the state's indexed portfolio, above the 14% national average by 19 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 Iowa is "Completed" with 658 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 Iowa, regardless of sponsor type.

The phase distribution shown above breaks the same trials down by where they sit along the investigational pathway. For Iowa, Phase 3 accounts for 360 indexed trials and Phase 2 accounts for 367. 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 Iowa is Breast Cancer with 35 linked trials, across 15 top condition areas surfaced above. On the sponsor side, University of Iowa leads with 72 studies tied to Iowa, 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 Iowa, 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 Iowa

508 trials in Iowa 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 Iowa's 33% 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.