Which sponsors post their clinical trial results?

Of the clinical trials completed since 2008, up to two years before the data date, 45.5% of those led by companies and 60.9% of those led by the U.S. National Institutes of Health had posted results on ClinicalTrials.gov by November 2026, against 19.6% for universities, hospitals and nonprofits. U.S. law requires results mainly for U.S. trials of drugs and devices past Phase 1, so many trials, including most outside the U.S., don't have to post here; some publish results in journals instead.

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Key facts

Measure: % of completed trials with results posted. Written from the data below.

  • Other U.S. federal agencies has the highest figure, 63.4%, followed by U.S. National Institutes of Health (60.9%) and Companies (45.5%).
  • Other governments has the lowest figure, 4.4%, followed by Universities, hospitals and nonprofits (19.6%) and Individuals (34.1%).
  • The highest is 14 times the lowest.

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Source and date

Source
ClinicalTrials.gov (U.S. National Library of Medicine), counted with its API v2
License
Public domain (U.S. government work); source National Library of Medicine
Data as of
Published

Citation

Chartly. “Which sponsors post their clinical trial results?” Chart. Data: ClinicalTrials.gov (U.S. National Library of Medicine), counted with its API v2, https://clinicaltrials.gov/data-api/api (data as of November 3, 2026). https://chart.ly/charts/clinical-trial-results-by-sponsor (accessed November 4, 2026).

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The data

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The file has the numbers in this table, with the source, license and date. Please credit the source and Chartly. Developers can also get them as JSON (how).

Lead sponsor % of completed trials with results posted
Other U.S. federal agencies 63.4
U.S. National Institutes of Health 60.9
Companies 45.5
Research networks 35.9
Individuals 34.1
Universities, hospitals and nonprofits 19.6
Other governments 4.4

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