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Clinical trials

Withheld trials with unknown phase

Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.

Filters: Phase: Unknown Status: Withheld Clear all

984 trials match Source: ClinicalTrials.gov registrations

Trials started per year

By phase, 2000 to 2026.

No trials to chart.

Status

Trials by registry status. Select a bar to filter.

Trials by status
CategoryTrials
Withheld984

Top lead sponsors

A sponsor with a page on Pharma Observatory links to it.

Top lead sponsors
CategoryTrials
[Redacted]984

Top conditions

MeSH conditions the trials were registered with, not their broader categories. A condition with a page on Pharma Observatory links to it.

No conditions to chart.

Trials

Showing 76 to 100 of 984. Each trial links to its page on Pharma Observatory.

884 more trials match. See them on Pharma Observatory

Recently changed trials

Changes observed in the last 7 days, newest first, site-count changes left out. Source: ClinicalTrials.gov.

No changes to these trials in the last 7 days.

Go deeper on Pharma Observatory

Pharma Observatory connects clinical trials, sponsors, sites and investigators in one searchable platform.