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Trial site location from the registry's own city and country. Amazon Location Service.

Clinical trial site

Massachusetts General Hospital

Massachusetts General Hospital in Boston, Massachusetts, United States is listed as a site for 4,471 registered clinical trials, 1171 of them ongoing.

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Registered trials 4,471
Ongoing 1,171

This page covers the site record Massachusetts General Hospital in Boston, Massachusetts, 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, Massachusetts General Hospital, 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. 4,471 trials counted.

  • Phase 1 569 trials
  • Phase 1/2 283 trials
  • Phase 2 946 trials
  • Phase 2/3 77 trials
  • Phase 3 546 trials
  • Phase 4 203 trials
  • Not applicable 1,189 trials
  • Observational 627 trials
  • Expanded access 31 trials

Trials by status

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

  • Ongoing 1,181 trials
  • Completed 2,437 trials
  • Terminated 664 trials
  • Other 189 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: 287

1992: 1 trials (Phase 2 1) 1993: 1 trials (Observational 1) 1994: 1 trials (Phase 3 1) 1995: 4 trials (Not applicable 1, Phase 4 1, Phase 3 1, Phase 2 1) 1996: 1 trials (Observational 1) 1997: 5 trials (Not applicable 1, Phase 3 1, Phase 2 1, Phase 1/2 2) 1998: 10 trials (Observational 1, Not applicable 3, Phase 3 1, Phase 2 4, Phase 1 1) 1999: 19 trials (Observational 4, Not applicable 1, Phase 4 2, Phase 3 3, Phase 2/3 1, Phase 2 4, Phase 1/2 2, Phase 1 2) 2000: 15 trials (Observational 2, Not applicable 1, Phase 3 2, Phase 2/3 1, Phase 2 4, Phase 1/2 2, Phase 1 3) 2001: 27 trials (Observational 2, Not applicable 3, Phase 4 3, Phase 3 7, Phase 2 8, Phase 1/2 1, Phase 1 3) 2002: 48 trials (Observational 6, Not applicable 7, Phase 4 5, Phase 3 8, Phase 2/3 3, Phase 2 13, Phase 1/2 3, Phase 1 3) 2003: 53 trials (Observational 6, Not applicable 7, Phase 4 5, Phase 3 5, Phase 2/3 4, Phase 2 20, Phase 1/2 1, Phase 1 5) 2004: 64 trials (Observational 2, Not applicable 10, Phase 4 4, Phase 3 11, Phase 2/3 1, Phase 2 29, Phase 1/2 4, Phase 1 3) 2005: 86 trials (Observational 14, Not applicable 21, Phase 4 5, Phase 3 14, Phase 2/3 3, Phase 2 21, Phase 1/2 3, Phase 1 5) 2006: 119 trials (Observational 20, Not applicable 17, Phase 4 9, Phase 3 18, Phase 2/3 2, Phase 2 39, Phase 1/2 4, Phase 1 10) 2007: 120 trials (Observational 13, Not applicable 27, Phase 4 5, Phase 3 19, Phase 2 34, Phase 1/2 10, Phase 1 12) 2008: 147 trials (Observational 17, Not applicable 34, Phase 4 10, Phase 3 18, Phase 2/3 1, Phase 2 32, Phase 1/2 11, Phase 1 24) 2009: 133 trials (Observational 15, Not applicable 32, Phase 4 9, Phase 3 14, Phase 2/3 1, Phase 2 38, Phase 1/2 7, Phase 1 17) 2010: 129 trials (Observational 22, Not applicable 32, Phase 4 7, Phase 3 12, Phase 2/3 1, Phase 2 36, Phase 1/2 4, Phase 1 15) 2011: 146 trials (Observational 32, Not applicable 43, Phase 4 6, Phase 3 12, Phase 2 29, Phase 1/2 3, Phase 1 21) 2012: 179 trials (Observational 33, Not applicable 50, Phase 4 10, Phase 3 17, Phase 2/3 1, Phase 2 37, Phase 1/2 7, Phase 1 24) 2013: 209 trials (Observational 32, Not applicable 48, Phase 4 12, Phase 3 20, Phase 2/3 3, Phase 2 52, Phase 1/2 9, Phase 1 33) 2014: 181 trials (Observational 24, Not applicable 60, Phase 4 10, Phase 3 20, Phase 2/3 2, Phase 2 26, Phase 1/2 9, Phase 1 30) 2015: 202 trials (Observational 30, Not applicable 54, Phase 4 5, Phase 3 20, Phase 2/3 2, Phase 2 42, Phase 1/2 15, Phase 1 34) 2016: 235 trials (Observational 35, Not applicable 65, Phase 4 6, Phase 3 28, Phase 2/3 3, Phase 2 44, Phase 1/2 21, Phase 1 33) 2017: 287 trials (Observational 36, Not applicable 71, Phase 4 13, Phase 3 47, Phase 2/3 5, Phase 2 66, Phase 1/2 15, Phase 1 34) 2018: 249 trials (Observational 36, Not applicable 70, Phase 4 10, Phase 3 33, Phase 2/3 4, Phase 2 53, Phase 1/2 14, Phase 1 29) 2019: 243 trials (Observational 37, Not applicable 68, Phase 4 16, Phase 3 24, Phase 2/3 5, Phase 2 41, Phase 1/2 20, Phase 1 32) 2020: 244 trials (Observational 43, Not applicable 61, Phase 4 6, Phase 3 32, Phase 2/3 4, Phase 2 49, Phase 1/2 20, Phase 1 29) 2021: 265 trials (Observational 42, Not applicable 70, Phase 4 5, Phase 3 31, Phase 2/3 8, Phase 2 58, Phase 1/2 19, Phase 1 32) 2022: 212 trials (Observational 29, Not applicable 61, Phase 4 8, Phase 3 27, Phase 2/3 7, Phase 2 32, Phase 1/2 25, Phase 1 23) 2023: 214 trials (Observational 33, Not applicable 65, Phase 4 6, Phase 3 23, Phase 2/3 7, Phase 2 30, Phase 1/2 15, Phase 1 35) 2024: 198 trials (Observational 22, Not applicable 73, Phase 4 9, Phase 3 26, Phase 2/3 3, Phase 2 23, Phase 1/2 13, Phase 1 29) 2025: 203 trials (Observational 22, Not applicable 62, Phase 4 5, Phase 3 33, Phase 2/3 4, Phase 2 38, Phase 1/2 14, 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) 165
2025 203
2024 198
2023 214
2022 212
2021 265
2020 244
2019 243
2018 249
2017 287

Showing 10 of 35 years.

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2026 is partial: trials registered with a 2026 start date so far, not a full year. 14 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 4,471 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 748 lead sponsors.

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Conditions studied

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

Showing 5 of 1,014 conditions.

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