Your Doctor's last patient could change your diagnosis
NCT ID NCT04332783
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looks at how seeing one skin image after another can influence a doctor's judgment, potentially causing errors. Researchers will test over 10,000 people, including doctors and untrained volunteers, to measure these biases. The goal is to find ways to reduce mistakes in remote skin checks.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 10,120 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Apr 2019
- Expected to finish
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Oct 2032
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Subjects must have normal or corrected to normal vision with contacts or glasses. Exclusion Criteria: * Subjects may not be under the age of 18 to participate. * Subjects may not participate if they are blind.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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University of California, Berkeley
RECRUITINGBerkeley, California, 94720, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- Can switching visual tasks sharpen or slow your search?
- Can choosing what to look for sharpen your focus?
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