PATHFINDER 2: A Multi-Cancer Early Detection Study
Public ClinicalTrials.gov record NCT05155605. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
The PATHFINDER 2 Study: Evaluating the Safety and Performance of the GRAIL Multi-Cancer Early Detection Test in an Eligible Screening Population
Study identification
- NCT ID
- NCT05155605
- Recruitment status
- Active, not recruiting
- Study type
- Interventional
- Phase
- Not applicable
- Lead sponsor
- GRAIL, Inc.
- Industry
- Enrollment
- 35,883 participants
Conditions and interventions
Conditions
Interventions
- Multi-Cancer Early Detection Test Device
Device
Eligibility (public fields only)
- Age range
- 50 Years and older
- Sex
- All
- Healthy volunteers
- Accepts healthy volunteers
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Dec 7, 2021
- Primary completion
- Feb 10, 2026
- Completion
- Apr 29, 2028
- Last update posted
- May 13, 2026
2021 – 2028
United States locations
- U.S. sites
- 55
- U.S. states
- 20
- U.S. cities
- 48
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Sutter Health | Auburn | California | 95602 | — |
| Sutter Health | Davis | California | 95616 | — |
| Sutter Health | Elk Grove | California | 95758 | — |
| Sutter Health | Fairfield | California | 94534 | — |
| HOAG Irvine | Irvine | California | 92663 | — |
| HOAG Vivante Newport Mesa | Irvine | California | 92663 | — |
| Long Beach Memorial Medical Center | Long Beach | California | 90806 | — |
| Sutter Health | Modesto | California | 95355 | — |
| HOAG Newport Beach | Newport Beach | California | 92663 | — |
| Palo Alto Medical Foundation | Palo Alto | California | 94301 | — |
| Sutter Health | Sacramento | California | 95816 | — |
| PAMF - Santa Cruz | Santa Cruz | California | 95062 | — |
| PAMF - Sunnyvale | Sunnyvale | California | 94086 | — |
| Sarah Cannon Research Institute - Englewood Primary Care | Englewood | Colorado | 80113 | — |
| Medstar Washington Hospital Center | Northwest | District of Columbia | 20010 | — |
| Woodlands Medical Specialists | Pensacola | Florida | 32503 | — |
| Morehouse School of Medicine | Atlanta | Georgia | 30310 | — |
| University of Illinois at Chicago | Chicago | Illinois | 60608 | — |
| Ochsner Grove | Baton Rouge | Louisiana | 70836 | — |
| Ochsner Lafayette General | Lafayette | Louisiana | 70503 | — |
| Ochsner Health | New Orleans | Louisiana | 70127 | — |
| Maryland Oncology Hematology | Annapolis | Maryland | 21401 | — |
| Henry Ford Macomb | Clinton | Michigan | 48038 | — |
| Henry Ford Medical Center Ford Road | Dearborn | Michigan | 48126 | — |
| Henry Ford Health System | Detroit | Michigan | 48202 | — |
| Henry Ford Medical Center Harbortown | Detroit | Michigan | 48207 | — |
| Henry Ford Medical Center Detroit North West | Detroit | Michigan | 48235 | — |
| Henry Ford Medical Center Sterling Heights | Sterling Heights | Michigan | 48310 | — |
| Mayo Clinic - Cancer Center | Rochester | Minnesota | 55905 | — |
| Weill Cornell Medicine | New York | New York | 10065 | — |
| Flushing Hospital Medical Center | Queens | New York | 11355 | — |
| Jamaica Hospital Medical Center | Queens | New York | 11418 | — |
| Sarah Cannon Asheville Family Medicine | Asheville | North Carolina | 28801 | — |
| Duke University Health System | Durham | North Carolina | 27705 | — |
| Cleveland Clinic | Cleveland | Ohio | 44195 | — |
| University of Oklahoma | Oklahoma City | Oklahoma | 73104 | — |
| St. Charles Health System | Bend | Oregon | 97701 | — |
| Oregon Health & Science University Bay Area Hospital | Coos Bay | Oregon | 97420 | — |
| Oregon Health & Science University Knight Cancer Institute | Portland | Oregon | 97201 | — |
| SALEM Health | Salem | Oregon | 97301 | — |
| University of Pittsburgh Medical Center | Pittsburgh | Pennsylvania | 15213 | — |
| Sarah Cannon Research Institute - The Frist Clinic | Nashville | Tennessee | 37203 | — |
| Sarah Cannon, Centennial Internal Medicine Continuity Clinic | Nashville | Tennessee | 37203 | — |
| Texas Oncology - West Texas | Amarillo | Texas | 79106 | — |
| Sarah Cannon, Austin Diagnostic Clinic | Austin | Texas | 78758 | — |
| Kelsey-Seybold Clinic Cypress Woods | Houston | Texas | 77014 | — |
| Kelsey-Seybold Clinic Holcombe | Houston | Texas | 77025 | — |
| Texas Oncology - Plano East | Plano | Texas | 75075 | — |
| Texas Oncology - Plano West | Plano | Texas | 75093 | — |
| University Texas Health San Antonio - Mays Cancer Center | San Antonio | Texas | 78229 | — |
| Texas Oncology - Tyler | Tyler | Texas | 75702 | — |
| Inova | Fairfax | Virginia | 22031 | — |
| Eastern Virginia Medical School | Norfolk | Virginia | 23510 | — |
| Virginia Commonwealth University | Richmond | Virginia | 23219 | — |
| Northwest Cancer Specialists | Vancouver | Washington | 98684 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
Non-U.S. locations
This page focuses on the U.S. directory. The official record also lists 1 non-U.S. site.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT05155605, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted May 13, 2026 · Synced May 18, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT05155605 live on ClinicalTrials.gov.