Groundbreaking scanner seeks to make medical imaging fairer for all
NCT ID NCT04812080
First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 2 times
Summary
This completed pilot study used a new, FDA-cleared total-body PET/CT scanner called EXPLORER to collect imaging data from 20 healthy volunteers who are members of racial or ethnic minority groups. The goal was to gather preliminary information on how the body absorbs a standard imaging tracer, which could help improve future medical scans for diverse populations. Participants also provided blood samples to confirm their ancestry.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- What this could lead to
- If successful, this could help improve medical imaging accuracy for people from diverse racial and ethnic backgrounds.
- What could go wrong
- This is a very small pilot study with only 20 participants, so results may not apply to everyone. It is designed to gather data, not to test a treatment.
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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20 people
The number who actually took part.
- Started
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Aug 2021
- Finished
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Nov 2021
- 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: * Men and women, 18 years of age or older * Member of a Federally recognized racial/ethnic minority population, e.g., African American or Black; Hispanic or Latino; Asian American; Native Hawaiian or Other Pacific Islander; Native American or Alaska Native * Willing and able to fast for at least 6 hours before and for the duration of the scan * Willing to provide urine samples throughout scan visit * Willing to provide blood samples for ancestry analysis * Willing and able to lay motionless in a supine position for up to 60 minutes and for up to 20 minutes at two separate timepoints * Willing and able to give informed consent, personal contact information (phone number, email and postal address), insurance information, and primary care physician contact Exclusion criteria: * No Primary Care Physician * No health insurance * Body weight more than 240 kg (529 pounds) * Any known concomitant acute infection (including upper respiratory infection, genitourinary infections, etc.) * History of metastatic or newly (last 5 years) diagnosed locally invasive cancer * Chemotherapy in the last 5 years * Radiation therapy in the last 3 years * Major surgery within the last 6 months * Pregnancy or breast-feeding * Diabetes * Fasting blood glucose level \> 200 mg/dL before administration of fluorodeoxyglucose (FDG) * Prisoners * Self-reported history of dysphoria or anxiety in closed spaces
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As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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University of California, Davis
Sacramento, California, 95817, United States