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Simple blood test could spot hidden cancers in seniors

NCT ID NCT05673018

Diagnosis Sponsor: GRAIL, Inc. Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study is testing a blood test called Galleri that looks for signals of many different cancers at once. Researchers will enroll 50,000 people aged 50 and older with Medicare coverage. Half will get the Galleri test plus usual care, and half will get usual care alone. The main goal is to see if the test helps catch cancers earlier, reducing the number of stage IV diagnoses.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
Multi-Cancer Early Detection Test (Galleri)
What this could lead to
If successful, this test could help detect many types of cancer earlier, when treatment is more likely to work, potentially reducing late-stage cancer diagnoses.
What could go wrong
This is an observational study, not a controlled trial, so results may show association, not proof. The test may miss some cancers or lead to unnecessary follow-up procedures.

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

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

About 50,000 people

The number the study aims to enrol. It can still change while the study runs.

Started

Jul 2024

Expected to finish

Sep 2030

An estimate. End dates often move.

Lead sponsor

A company

The lead sponsor is a pharmaceutical, biotech, or medical-device company.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

50 years and older

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show 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: For Galleri + UC (Galleri-Tested Arm): Participants are eligible to be included in the study only if all of the following criteria apply: * Aged ≥50 years with Medicare coverage, including Traditional Medicare (Part A \& B or Dual Eligibles) or Medicare Advantage. * Capable of giving informed consent that is legally effective (consent provided by a legally authorized representative is not permitted in this protocol). For UC (Not Galleri-tested Arm): Participants are eligible to be included in the study only if all of the following criteria apply: * Aged ≥ 50 years with Medicare coverage, including Traditional Medicare (Part A \& B or Dual Eligibles) or Medicare Advantage. * Have had ≥ 1 UC visit Exclusion Criteria: For Galleri + UC (Galleri-Tested Arm): * Evidence of having had a previous MCED test (including but not limited to the Galleri test, e.g. CancerSeek, PanSeer). Participation in a study such as GRAIL's STRIVE study where results were not returned is not an exclusion criterion. * Undergoing clinical evaluation for suspicion of cancer within 6 months prior to enrollment. Personal history of hematologic malignancy and/or invasive solid tumor (excluding non-metastatic basal cell carcinoma and squamous cell carcinoma of the skin): 1. Diagnosed ≤3 years before expected enrollment date and/or 2. Diagnosed \>3 years before expected enrollment date and never treated and/or 3. Currently undergoing active cancer management (not including adjuvant hormone therapy for breast or prostate cancer). * Current pregnancy. * Individuals who are currently inpatients at a participating site. * Individuals who are not willing or able to comply with the protocol procedures. * Individuals who are not currently registered patients at a participating center. * Previous or current employees or contractors of GRAIL. For UC (Not Galleri-tested Arm): * Evidence of having had a previous MCED test (including but not limited to the Galleri test, eg.CancerSeek, PanSeer). Participation in a study such as GRAIL's STRIVE study where results were not returned is not an exclusion criterion. * Undergoing clinical evaluation for suspicion of cancer. * Personal history of hematologic malignancy and/or invasive solid tumor (not including non-metastatic basal cell carcinoma and squamous cell carcinoma of the skin): 1. Diagnosed ≤3 years before expected enrollment date and/or 2. Diagnosed \>3 years before expected enrollment date and never treated and/or 3. Currently undergoing active cancer management (not including adjuvant hormone therapy for breast or prostate cancer). * Current pregnancy. * Individuals who are currently inpatients at a participating site.

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Conditions

The condition(s) this trial relates to.

cancer neoplasm

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Cancer

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The study's own enquiry address

    This study publishes an address for enquiries. See it below .

  2. The places running it

    61 sites. The list below names each one and where it is.

  3. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  4. 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

  • Community Health Network Anderson

    RECRUITING

    Anderson, Indiana, 46011, United States

  • Community Health Network East

    RECRUITING

    Indianapolis, Indiana, 46219, United States

  • Community Health Network Kokomo

    RECRUITING

    Kokomo, Indiana, 46902, United States

  • Community Health Network LaFountain

    RECRUITING

    Kokomo, Indiana, 46902, United States

  • Community Health Network North

    RECRUITING

    Fishers, Indiana, 46038, United States

  • Community Health Network South

    RECRUITING

    Indianapolis, Indiana, 46256, United States

  • Geisinger Bloomsburg Hospital - Bloomsburg

    RECRUITING

    Bloomsburg, Pennsylvania, 17815, United States

    Contact Email: •••••@•••••

  • HCA Healthcare Brentwood

    RECRUITING

    Brentwood, Tennessee, 37027, United States

  • HCA Healthcare Centennial

    RECRUITING

    Nashville, Tennessee, 37203, United States

  • HCA Healthcare Doctors Hospital

    RECRUITING

    Augusta, Georgia, 30909, United States

  • HCA Healthcare Nashville

    RECRUITING

    Nashville, Tennessee, 37203, United States

  • HCA Healthcare St. Marks

    RECRUITING

    Salt Lake City, Utah, 84124, United States

  • Long Beach Memorial Atlantic

    RECRUITING

    Long Beach, California, 90806, United States

  • Long Beach Memorial Orange Coast

    RECRUITING

    Fountain Valley, California, 92708, United States

  • Long Beach Memorial Saddleback

    RECRUITING

    Laguna Hills, California, 92653, United States

  • Mercy Health - Fort Smith

    RECRUITING

    Fort Smith, Arkansas, 72903, United States

    Contact Email: •••••@•••••

  • Mercy Health - Springfield

    RECRUITING

    Springfield, Missouri, 65807, United States

    Contact Email: •••••@•••••

  • Mercy Health St. Louis

    RECRUITING

    St Louis, Missouri, 63141, United States

    Contact Email: •••••@•••••

  • Morehouse School of Medicine Atlanta

    RECRUITING

    Atlanta, Georgia, 30303, United States

  • Morehouse School of Medicine East Point

    RECRUITING

    Atlanta, Georgia, 30344, United States

  • Morehouse School of Medicine Lee Street

    RECRUITING

    Atlanta, Georgia, 30310, United States

  • Morehouse School of Medicine Princeton Lakes

    RECRUITING

    Atlanta, Georgia, 30331, United States

  • OHSU CEDAR Clinical Trials Adventist

    RECRUITING

    The Dalles, Oregon, 97058, United States

    Contact Email: •••••@•••••

  • OHSU CEDAR Clinical Trials Beaverton

    RECRUITING

    Beaverton, Oregon, 97006, United States

  • OHSU CEDAR Clinical Trials Columbia

    RECRUITING

    Astoria, Oregon, 97103, United States

  • OHSU CEDAR Clinical Trials Dalles

    RECRUITING

    The Dalles, Oregon, 97058, United States

  • OHSU CEDAR Clinical Trials Ensign

    RECRUITING

    Warrenton, Oregon, 97146, United States

  • OHSU CEDAR Clinical Trials Exchange

    RECRUITING

    Astoria, Oregon, 97103, United States

  • OHSU CEDAR Clinical Trials Orenco

    RECRUITING

    Hillsboro, Oregon, 97124, United States

  • OHSU CEDAR Clinical Trials Portland

    RECRUITING

    Portland, Oregon, 97201, United States

  • OHSU CEDAR Clinical Trials Richmond

    RECRUITING

    Portland, Oregon, 97202, United States

  • OHSU CEDAR Clinical Trials Woods

    RECRUITING

    Hood River, Oregon, 97031, United States

  • Ochsner Health Baptist

    RECRUITING

    New Orleans, Louisiana, 70115, United States

  • Ochsner Health Benson

    RECRUITING

    New Orleans, Louisiana, 70121, United States

  • Ochsner Health Bocage

    RECRUITING

    Baton Rouge, Louisiana, 70809, United States

  • Ochsner Health Covington

    RECRUITING

    Covington, Louisiana, 70433, United States

  • Ochsner Health Grove

    RECRUITING

    Baton Rouge, Louisiana, 70836, United States

  • Ochsner Health Kenner

    RECRUITING

    Kenner, Louisiana, 70065, United States

  • Ochsner Health Lafayette

    RECRUITING

    Lafayette, Louisiana, 70503, United States

  • Ochsner Health Lafreniere

    RECRUITING

    Metairie, Louisiana, 70003, United States

  • Ochsner Health STCC

    RECRUITING

    Covington, Louisiana, 70433, United States

  • Ochsner Health St. Tammany Parish

    RECRUITING

    Covington, Louisiana, 70433, United States

  • Ochsner Health Westbank

    RECRUITING

    Marrero, Louisiana, 70072, United States

  • Sutter Health Santa Rosa

    RECRUITING

    Santa Rosa, California, 95403, United States

    Contact Email: •••••@•••••

  • Sutter Valley Hospitals Alhambra

    RECRUITING

    Sacramento, California, 95816, United States

    Contact Email: •••••@•••••

  • Sutter Valley Hospitals Auburn

    RECRUITING

    Auburn, California, 95603, United States

    Contact Email: •••••@•••••

  • Sutter Valley Hospitals Capitol Pavilion

    RECRUITING

    Sacramento, California, 95816, United States

    Contact Email: •••••@•••••

  • Sutter Valley Hospitals Davis

    RECRUITING

    Davis, California, 95616, United States

    Contact Email: •••••@•••••

  • Sutter Valley Hospitals Elk Grove

    RECRUITING

    Elk Grove, California, 95758, United States

    Contact Email: •••••@•••••

  • Sutter Valley Hospitals Fairfield

    RECRUITING

    Vallejo, California, 94589, United States

    Contact Email: •••••@•••••

  • Sutter Valley Hospitals Modesto

    RECRUITING

    Modesto, California, 95355, United States

    Contact Email: •••••@•••••

  • Sutter Valley Hospitals PAMF Santa Cruz

    RECRUITING

    Santa Cruz, California, 95065, United States

    Contact Email: •••••@•••••

  • Sutter Valley Hospitals PAMF Sunnyvale

    RECRUITING

    Sunnyvale, California, 94086, United States

    Contact Email: •••••@•••••

  • Sutter Valley Hospitals PAMF Sutter

    RECRUITING

    Palo Alto, California, 94301, United States

    Contact Email: •••••@•••••

  • Sutter Valley Hospitals Roseville

    RECRUITING

    Roseville, California, 95661, United States

    Contact Email: •••••@•••••

  • Sutter Valley Hospitals Santa Barbara

    RECRUITING

    Santa Barbara, California, 93105, United States

    Contact Email: •••••@•••••

  • USF Morsani Center for Advanced Healthcare

    RECRUITING

    Tampa, Florida, 33612, United States

    Contact Email: •••••@•••••

  • University of California San Francisco Health System

    RECRUITING

    San Francisco, California, 94158, United States

  • West Virginia University Health System Morgantown

    RECRUITING

    Morgantown, West Virginia, 26501, United States

    Contact Email: •••••@•••••

  • West Virginia University Health System St. Joseph

    RECRUITING

    Buckhannon, West Virginia, 26201, United States

    Contact Email: •••••@•••••

  • West Virginia University Health System WV CTSI

    RECRUITING

    Morgantown, West Virginia, 26506, United States

    Contact Email: •••••@•••••

More trials for these conditions

Other studies related to the condition(s) this trial covers.