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Trial site location from the registry's own city and country. GeoNames (geonames.org).

Clinical trial site

National Institutes of Health Clinical Center

National Institutes of Health Clinical Center in Bethesda, Maryland, United States is listed as a site for 1,565 registered clinical trials, 807 of them ongoing.

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Registered trials 1,565
Ongoing 807

This page covers the site record National Institutes of Health Clinical Center in Bethesda, Maryland, United States: the trials that list it by this name in ClinicalTrials.gov. The same place can be registered under other names, each with its own page and its own trials, and a count here is a number of registered trials, not of patients enrolled. The organization of the same name, National Institutes of Health Clinical Center, also sponsors trials.

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The PDF carries up to 50 rows of each section, where the page shows the first few, with the sources listed. Enter a work email and confirm it from the message we send, and the report follows by email.

Trials by phase

Registered trials that list this site, by trial phase. 1,565 trials counted.

  • Phase 1 271 trials
  • Phase 1/2 142 trials
  • Phase 2 296 trials
  • Phase 2/3 4 trials
  • Phase 3 13 trials
  • Phase 4 8 trials
  • Not applicable 102 trials
  • Observational 729 trials

Trials by status

The registry's own status summary: Ongoing, Completed, Terminated or Other.

  • Ongoing 807 trials
  • Completed 564 trials
  • Terminated 191 trials
  • Other 3 trials

Trials over time

Trials registered with a start date in each year, 1990 onward, most recent years first.

Trials over time, by phase

  • Phase 1
  • Phase 1/2
  • Phase 2
  • Phase 2/3
  • Phase 3
  • Phase 4
  • Not applicable
  • Observational

Top of scale: 108

1990: 3 trials (Observational 3) 1991: 4 trials (Observational 4) 1992: 6 trials (Observational 6) 1993: 14 trials (Observational 9, Not applicable 4, Phase 2 1) 1994: 6 trials (Observational 6) 1995: 10 trials (Observational 8, Phase 3 1, Phase 2 1) 1996: 9 trials (Observational 8, Phase 2 1) 1997: 7 trials (Observational 6, Phase 1 1) 1998: 9 trials (Observational 9) 1999: 6 trials (Observational 6) 2000: 16 trials (Observational 14, Phase 1 2) 2001: 19 trials (Observational 17, Phase 2 2) 2002: 21 trials (Observational 20, Phase 2 1) 2003: 21 trials (Observational 20, Phase 2 1) 2004: 21 trials (Observational 18, Phase 2 2, Phase 1/2 1) 2005: 8 trials (Observational 7, Not applicable 1) 2006: 15 trials (Observational 13, Not applicable 1, Phase 1/2 1) 2007: 16 trials (Observational 13, Phase 1 3) 2008: 21 trials (Observational 15, Not applicable 1, Phase 2 2, Phase 1 3) 2009: 23 trials (Observational 17, Not applicable 2, Phase 4 1, Phase 2 1, Phase 1/2 1, Phase 1 1) 2010: 35 trials (Observational 19, Not applicable 1, Phase 3 1, Phase 2 8, Phase 1/2 3, Phase 1 3) 2011: 38 trials (Observational 24, Not applicable 4, Phase 2 5, Phase 1/2 3, Phase 1 2) 2012: 42 trials (Observational 30, Not applicable 2, Phase 4 1, Phase 2 4, Phase 1/2 2, Phase 1 3) 2013: 41 trials (Observational 27, Not applicable 1, Phase 4 1, Phase 2 4, Phase 1/2 2, Phase 1 6) 2014: 51 trials (Observational 29, Not applicable 2, Phase 3 1, Phase 2 10, Phase 1 9) 2015: 66 trials (Observational 34, Not applicable 3, Phase 3 1, Phase 2 8, Phase 1/2 5, Phase 1 15) 2016: 80 trials (Observational 35, Not applicable 7, Phase 4 2, Phase 3 2, Phase 2/3 1, Phase 2 13, Phase 1/2 6, Phase 1 14) 2017: 108 trials (Observational 40, Not applicable 6, Phase 3 1, Phase 2/3 1, Phase 2 26, Phase 1/2 16, Phase 1 18) 2018: 102 trials (Observational 28, Not applicable 11, Phase 4 1, Phase 2/3 1, Phase 2 22, Phase 1/2 10, Phase 1 29) 2019: 93 trials (Observational 20, Not applicable 9, Phase 3 1, Phase 2 35, Phase 1/2 8, Phase 1 20) 2020: 88 trials (Observational 35, Not applicable 2, Phase 3 1, Phase 2 23, Phase 1/2 11, Phase 1 16) 2021: 107 trials (Observational 37, Not applicable 8, Phase 2 22, Phase 1/2 15, Phase 1 25) 2022: 94 trials (Observational 36, Not applicable 10, Phase 4 1, Phase 3 1, Phase 2 19, Phase 1/2 12, Phase 1 15) 2023: 91 trials (Observational 27, Not applicable 6, Phase 2 24, Phase 1/2 12, Phase 1 22) 2024: 75 trials (Observational 17, Not applicable 5, Phase 2 23, Phase 1/2 15, Phase 1 15) 2025: 72 trials (Observational 18, Not applicable 4, Phase 4 1, Phase 3 1, Phase 2 17, Phase 1/2 6, Phase 1 25)

Trials that list this site and are registered with a start date in each year, 1990 onward, stacked by phase (complete years only; the current partial year is in the table). The table below lists the same counts, most recent years first.

Trials started per year
Year Trials started
2026 (partial year) 106
2025 72
2024 75
2023 91
2022 94
2021 107
2020 88
2019 93
2018 102
2017 108

Showing 10 of 37 years.

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2026 is partial: trials registered with a 2026 start date so far, not a full year. 1 trial is registered to start in 2027 or later, and not listed here

Recent trials

The newest registered trials that list this site. Each title opens its ClinicalTrials.gov record.

Showing 5 of 1,565 trials.

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Source: ClinicalTrials.gov

Lead sponsors

Most trials first. Lead sponsors the registry classes as industry, NIH, US federal, other government or network. A hospital or university the registry files as government can appear here. Sponsors it classes as academic or other are shown on the full page, because that class cannot separate an institution from a named investigator.

Showing 5 of 39 lead sponsors.

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Conditions studied

The specific conditions of the trials that list this site, most trials first.

Showing 5 of 749 conditions.

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