Clinical trial Recruiting at 2 sites Interventional Ages 18 and up

Genetic testing for cancer in diverse ethnic groups

Official title: GEMINI - Cancer Genetic Testing in Ethnic Populations

Run by Mayo Clinic · NCT04475640 · Data updated 2026-11-12

This study is testing how genetic testing can help cancer patients from different ethnic backgrounds understand their risks and improve their personalized care.

Quick facts

Study typeInterventional
Ages18 Years and up
SexAll
Enrollment1800 (estimated)
SponsorMayo Clinic
Academic / other
Locations2 sites (Scottsdale, Arizona and 1 other locations)
StatusRecruiting
StartedJanuary 13, 2020
Main results expectedOctober 15, 2028
Study endsOctober 15, 2028
Registry record updatedApril 2, 2026
Trial IDNCT04475640 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates include adults diagnosed with solid tumor cancers who self-identify as part of various ethnic populations and are seeking treatment at Mayo Clinic.

Probably not a fit

Patients who have undergone extensive germline genetic testing within the last 24 months may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This clinical trial investigates the prevalence of genetic mutations in cancer patients from various ethnic backgrounds at Mayo Clinic Arizona and Mayo Clinic Florida. It aims to integrate cancer genetic testing into standard oncology care by collecting blood or saliva samples for analysis. The study will assess the impact of genetic testing on cancer risk stratification and individualized screening, comparing results from multi-gene panel testing to traditional guidelines. By focusing on diverse populations, the trial seeks to enhance understanding of genetic risks associated with different ethnicities.

Why it matters

Potential benefit: If successful, this study could lead to improved cancer risk assessment and personalized screening strategies for patients from diverse ethnic backgrounds.

How similar studies have gone: Other studies have shown success in integrating genetic testing into cancer care, particularly in diverse populations, but this specific approach is relatively novel.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patients at least 18 years of age
* Individuals diagnosed with any solid tumor cancer including, but not limited to, gastrointestinal, breast, gynecological, genitourinary, skin, central nervous system (CNS)/brain, head/neck, musculoskeletal or cancer of unknown primary; and presenting to Mayo Clinic (MC Arizona or MC Florida) for clinical management/treatment; and patients receive genetic testing as described above
* Self-identified as being from various ethnic populations including Hispanic/Latino, Native American/Alaskan, African American (including of African descent), Asian and other European populations
* Blood collection is feasible (health, access and/or tolerability) for requested blood sample(s)
* Individuals have agreed to participate and signed the study informed consent form

Exclusion Criteria:

* Patients who have had prior germline genetic testing involving a 40+ gene panel within the last 24 months at Mayo Clinic and available for review by the research coordinator at time of consent
* Past or current history of hematological cancer (including leukemias, multiple myeloma)
* All bone marrow transplants

Where it's running

  • Mayo Clinic in Arizona
    Scottsdale, Arizona, United States
    Recruiting
  • Mayo Clinic in Florida
    Jacksonville, Florida, United States
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.