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  • Trial site

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

Clinical trial site

Ridley-Tree Cancer Center

Ridley-Tree Cancer Center in Santa Barbara, California, United States is listed as a site for 33 registered clinical trials, 22 of them ongoing.

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Registered trials 33
Ongoing 22

This page covers the site record Ridley-Tree Cancer Center in Santa Barbara, California, 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.

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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. 33 trials counted.

  • Phase 1 1 trial
  • Phase 2 5 trials
  • Phase 2/3 3 trials
  • Phase 3 22 trials
  • Not applicable 1 trial
  • Observational 1 trial

Trials by status

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

  • Ongoing 22 trials
  • Completed 9 trials
  • Terminated 2 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 2
  • Phase 2/3
  • Phase 3
  • Not applicable
  • Observational

Top of scale: 5

2003: 1 trials (Phase 3 1) 2006: 1 trials (Phase 3 1) 2013: 1 trials (Phase 3 1) 2014: 1 trials (Not applicable 1) 2015: 1 trials (Phase 2/3 1) 2017: 1 trials (Observational 1) 2018: 2 trials (Phase 3 1, Phase 2 1) 2019: 4 trials (Phase 3 2, Phase 2/3 1, Phase 1 1) 2020: 3 trials (Phase 3 2, Phase 2 1) 2021: 4 trials (Phase 3 4) 2022: 4 trials (Phase 3 1, Phase 2/3 1, Phase 2 2) 2023: 5 trials (Phase 3 4, Phase 2 1) 2025: 3 trials (Phase 3 3)

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) 2
2025 3
2023 5
2022 4
2021 4
2020 3
2019 4
2018 2
2017 1
2015 1

Showing 10 of 14 years.

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2026 is partial: trials registered with a 2026 start date so far, not a full year

Recent trials

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

Showing 5 of 33 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 14 lead sponsors.

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Conditions studied

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

Showing 5 of 22 conditions.

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