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  • Trial site

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

Clinical trial site

Yale University

Yale University in New Haven, Connecticut, United States is listed as a site for 1,286 registered clinical trials, 512 of them ongoing.

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Registered trials 1,286
Ongoing 512

This page covers the site record Yale University in New Haven, Connecticut, 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, Yale University, also sponsors trials.

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Trials by phase

Registered trials that list this site, by trial phase. 1,286 trials counted.

  • Phase 1 135 trials
  • Phase 1/2 67 trials
  • Phase 2 306 trials
  • Phase 2/3 54 trials
  • Phase 3 283 trials
  • Phase 4 26 trials
  • Not applicable 244 trials
  • Observational 169 trials
  • Expanded access 2 trials

Trials by status

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

  • Ongoing 512 trials
  • Completed 620 trials
  • Terminated 133 trials
  • Other 21 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: 92

1991: 2 trials (Observational 1, Phase 2/3 1) 1992: 2 trials (Observational 1, Phase 3 1) 1993: 3 trials (Observational 2, Phase 3 1) 1994: 4 trials (Observational 2, Phase 2/3 1, Phase 1/2 1) 1995: 2 trials (Phase 3 2) 1996: 2 trials (Observational 1, Phase 1/2 1) 1997: 2 trials (Phase 2/3 1, Phase 1/2 1) 1998: 3 trials (Phase 4 1, Phase 3 2) 1999: 7 trials (Observational 3, Phase 4 1, Phase 3 3) 2000: 2 trials (Observational 1, Phase 3 1) 2001: 6 trials (Observational 1, Not applicable 2, Phase 3 2, Phase 1 1) 2002: 4 trials (Not applicable 1, Phase 3 2, Phase 2 1) 2003: 7 trials (Observational 1, Phase 3 4, Phase 1/2 1, Phase 1 1) 2004: 9 trials (Observational 3, Not applicable 2, Phase 3 3, Phase 2 1) 2005: 19 trials (Observational 4, Not applicable 3, Phase 3 8, Phase 2 3, Phase 1 1) 2006: 20 trials (Observational 4, Not applicable 1, Phase 3 7, Phase 2/3 1, Phase 2 6, Phase 1/2 1) 2007: 17 trials (Observational 1, Not applicable 1, Phase 4 1, Phase 3 9, Phase 2 3, Phase 1/2 1, Phase 1 1) 2008: 20 trials (Observational 3, Not applicable 7, Phase 4 1, Phase 3 5, Phase 2/3 1, Phase 2 2, Phase 1 1) 2009: 32 trials (Observational 5, Not applicable 3, Phase 3 17, Phase 2 6, Phase 1 1) 2010: 48 trials (Observational 6, Not applicable 8, Phase 3 13, Phase 2/3 2, Phase 2 12, Phase 1/2 2, Phase 1 5) 2011: 41 trials (Observational 5, Not applicable 5, Phase 4 2, Phase 3 12, Phase 2/3 1, Phase 2 7, Phase 1/2 4, Phase 1 5) 2012: 39 trials (Observational 5, Not applicable 9, Phase 3 8, Phase 2/3 1, Phase 2 11, Phase 1/2 2, Phase 1 3) 2013: 46 trials (Observational 7, Not applicable 12, Phase 3 11, Phase 2/3 2, Phase 2 11, Phase 1/2 1, Phase 1 2) 2014: 80 trials (Observational 15, Not applicable 11, Phase 4 3, Phase 3 16, Phase 2/3 8, Phase 2 17, Phase 1/2 2, Phase 1 8) 2015: 72 trials (Observational 12, Not applicable 8, Phase 4 2, Phase 3 12, Phase 2/3 3, Phase 2 23, Phase 1/2 3, Phase 1 9) 2016: 52 trials (Observational 6, Not applicable 5, Phase 3 11, Phase 2/3 1, Phase 2 12, Phase 1/2 3, Phase 1 14) 2017: 92 trials (Observational 10, Not applicable 16, Phase 4 2, Phase 3 18, Phase 2/3 1, Phase 2 32, Phase 1/2 2, Phase 1 11) 2018: 78 trials (Observational 8, Not applicable 17, Phase 4 1, Phase 3 14, Phase 2/3 1, Phase 2 18, Phase 1/2 6, Phase 1 13) 2019: 83 trials (Observational 17, Not applicable 16, Phase 4 1, Phase 3 15, Phase 2/3 7, Phase 2 15, Phase 1/2 5, Phase 1 7) 2020: 76 trials (Observational 7, Not applicable 15, Phase 4 2, Phase 3 14, Phase 2/3 5, Phase 2 24, Phase 1/2 4, Phase 1 5) 2021: 80 trials (Observational 9, Not applicable 20, Phase 3 19, Phase 2/3 4, Phase 2 16, Phase 1/2 5, Phase 1 7) 2022: 63 trials (Observational 9, Not applicable 20, Phase 4 3, Phase 3 6, Phase 2/3 3, Phase 2 10, Phase 1/2 7, Phase 1 5) 2023: 83 trials (Observational 7, Not applicable 19, Phase 4 2, Phase 3 17, Phase 2/3 3, Phase 2 17, Phase 1/2 5, Phase 1 13) 2024: 78 trials (Observational 8, Not applicable 15, Phase 4 2, Phase 3 15, Phase 2/3 3, Phase 2 23, Phase 1/2 3, Phase 1 9) 2025: 64 trials (Observational 4, Not applicable 13, Phase 3 10, Phase 2/3 2, Phase 2 21, Phase 1/2 6, Phase 1 8)

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) 40
2025 64
2024 78
2023 83
2022 63
2021 80
2020 76
2019 83
2018 78
2017 92

Showing 10 of 36 years.

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2026 is partial: trials registered with a 2026 start date so far, not a full year. 4 trials are 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 1,286 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 229 lead sponsors.

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Conditions studied

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

Showing 5 of 575 conditions.

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