ClinicalTrials.gov record
Using Biomarkers to Help Guide Safe Immunotherapy Discontinuation in Patients With Unresectable Stage IIIB-IV Melanoma, The PET-Stop Trial
ClinicalTrials.gov ID: NCT04462406
Public ClinicalTrials.gov record NCT04462406. 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
A Phase II Study of Biomarker Driven Early Discontinuation of Anti-PD-1 Therapy in Patients With Advanced Melanoma (PET-Stop)
Study identification
- NCT ID
- NCT04462406
- Recruitment status
- Active, not recruiting
- Study type
- Interventional
- Phase
- Phase 2
- Lead sponsor
- ECOG-ACRIN Cancer Research Group
- Network
- Enrollment
- 150 participants
Conditions and interventions
Conditions
Not listed
Interventions
Not listed
Eligibility (public fields only)
- Age range
- 18 Years and older
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Feb 8, 2021
- Primary completion
- Jan 30, 2027
- Completion
- Sep 29, 2030
- Last update posted
- May 13, 2026
2021 – 2030
United States locations
- U.S. sites
- 189
- U.S. states
- 19
- U.S. cities
- 131
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Thomas Hospital | Fairhope | Alabama | 36532 | — |
| Mobile Infirmary Medical Center | Mobile | Alabama | 36607 | — |
| Fairbanks Memorial Hospital | Fairbanks | Alaska | 99701 | — |
| Cancer Center at Saint Joseph's | Phoenix | Arizona | 85004 | — |
| Banner University Medical Center - Tucson | Tucson | Arizona | 85719 | — |
| University of Arizona Cancer Center-North Campus | Tucson | Arizona | 85719 | — |
| Mercy Hospital Fort Smith | Fort Smith | Arkansas | 72903 | — |
| CHI Saint Vincent Cancer Center Hot Springs | Hot Springs | Arkansas | 71913 | — |
| CARTI Cancer Center | Little Rock | Arkansas | 72205 | — |
| University of Arkansas for Medical Sciences | Little Rock | Arkansas | 72205 | — |
| Kaiser Permanente-Deer Valley Medical Center | Antioch | California | 94531 | — |
| Mission Hope Medical Oncology - Arroyo Grande | Arroyo Grande | California | 93420 | — |
| Mercy Cancer Center - Carmichael | Carmichael | California | 95608 | — |
| Mercy San Juan Medical Center | Carmichael | California | 95608 | — |
| Kaiser Permanente Dublin | Dublin | California | 94568 | — |
| Mercy Cancer Center - Elk Grove | Elk Grove | California | 95758 | — |
| Kaiser Permanente-Fremont | Fremont | California | 94538 | — |
| Fresno Cancer Center | Fresno | California | 93720 | — |
| Kaiser Permanente-Fresno | Fresno | California | 93720 | — |
| The Angeles Clinic and Research Institute - West Los Angeles Office | Los Angeles | California | 90025 | — |
| Cedars Sinai Medical Center | Los Angeles | California | 90048 | — |
| Mercy Cancer Center | Merced | California | 95340 | — |
| Kaiser Permanente-Modesto | Modesto | California | 95356 | — |
| Kaiser Permanente Oakland-Broadway | Oakland | California | 94611 | — |
| Kaiser Permanente-Oakland | Oakland | California | 94611 | — |
| Kaiser Permanente-Rancho Cordova Cancer Center | Rancho Cordova | California | 95670 | — |
| Kaiser Permanente- Marshall Medical Offices | Redwood City | California | 94063 | — |
| Kaiser Permanente-Richmond | Richmond | California | 94801 | — |
| Mercy Cancer Center - Rocklin | Rocklin | California | 95765 | — |
| Rohnert Park Cancer Center | Rohnert Park | California | 94928 | — |
| Kaiser Permanente-Roseville | Roseville | California | 95661 | — |
| The Permanente Medical Group-Roseville Radiation Oncology | Roseville | California | 95678 | — |
| Kaiser Permanente Downtown Commons | Sacramento | California | 95814 | — |
| Mercy Cancer Center - Sacramento | Sacramento | California | 95816 | — |
| Kaiser Permanente-South Sacramento | Sacramento | California | 95823 | — |
| South Sacramento Cancer Center | Sacramento | California | 95823 | — |
| Kaiser Permanente-San Francisco | San Francisco | California | 94115 | — |
| Kaiser Permanente-Santa Teresa-San Jose | San Jose | California | 95119 | — |
| Kaiser Permanente San Leandro | San Leandro | California | 94577 | — |
| Pacific Central Coast Health Center-San Luis Obispo | San Luis Obispo | California | 93401 | — |
| Kaiser San Rafael-Gallinas | San Rafael | California | 94903 | — |
| Kaiser Permanente Medical Center - Santa Clara | Santa Clara | California | 95051 | — |
| Mission Hope Medical Oncology - Santa Maria | Santa Maria | California | 93444 | — |
| Kaiser Permanente-Santa Rosa | Santa Rosa | California | 95403 | — |
| Kaiser Permanente Cancer Treatment Center | South San Francisco | California | 94080 | — |
| Kaiser Permanente-South San Francisco | South San Francisco | California | 94080 | — |
| Kaiser Permanente-Stockton | Stockton | California | 95210 | — |
| Kaiser Permanente Medical Center-Vacaville | Vacaville | California | 95688 | — |
| Kaiser Permanente-Vallejo | Vallejo | California | 94589 | — |
| Kaiser Permanente-Walnut Creek | Walnut Creek | California | 94596 | — |
| BASS Medical Group - Lennon | Walnut Creek | California | 94598 | — |
| Woodland Memorial Hospital | Woodland | California | 95695 | — |
| Rocky Mountain Cancer Centers-Aurora | Aurora | Colorado | 80012 | — |
| The Medical Center of Aurora | Aurora | Colorado | 80012 | — |
| Boulder Community Foothills Hospital | Boulder | Colorado | 80303 | — |
| Rocky Mountain Cancer Centers-Boulder | Boulder | Colorado | 80304 | — |
| Rocky Mountain Cancer Centers - Centennial | Centennial | Colorado | 80112 | — |
| Penrose-Saint Francis Healthcare | Colorado Springs | Colorado | 80907 | — |
| Rocky Mountain Cancer Centers-Penrose | Colorado Springs | Colorado | 80907 | — |
| Saint Francis Cancer Center | Colorado Springs | Colorado | 80923 | — |
| Kaiser Permanente-Franklin | Denver | Colorado | 80205 | — |
| The Women's Imaging Center | Denver | Colorado | 80209 | — |
| Porter Adventist Hospital | Denver | Colorado | 80210 | — |
| Colorado Blood Cancer Institute | Denver | Colorado | 80218 | — |
| Presbyterian - Saint Lukes Medical Center - Health One | Denver | Colorado | 80218 | — |
| Rocky Mountain Cancer Centers-Midtown | Denver | Colorado | 80218 | — |
| Rocky Mountain Cancer Centers-Rose | Denver | Colorado | 80220 | — |
| Rose Medical Center | Denver | Colorado | 80220 | — |
| Western Surgical Care | Denver | Colorado | 80220 | — |
| Mercy Medical Center | Durango | Colorado | 81301 | — |
| Southwest Oncology PC | Durango | Colorado | 81301 | — |
| Mountain Blue Cancer Care Center - Swedish | Englewood | Colorado | 80113 | — |
| Rocky Mountain Cancer Centers - Swedish | Englewood | Colorado | 80113 | — |
| Swedish Medical Center | Englewood | Colorado | 80113 | — |
| The Melanoma and Skin Cancer Institute | Englewood | Colorado | 80113 | — |
| Kaiser Permanente-Rock Creek | Lafayette | Colorado | 80026 | — |
| Rocky Mountain Cancer Centers-Lakewood | Lakewood | Colorado | 80228 | — |
| Saint Anthony Hospital | Lakewood | Colorado | 80228 | — |
| Rocky Mountain Cancer Centers-Littleton | Littleton | Colorado | 80120 | — |
| Littleton Adventist Hospital | Littleton | Colorado | 80122 | — |
| Kaiser Permanente-Lone Tree | Lone Tree | Colorado | 80124 | — |
| Rocky Mountain Cancer Centers-Sky Ridge | Lone Tree | Colorado | 80124 | — |
| Sky Ridge Medical Center | Lone Tree | Colorado | 80124 | — |
| Longmont United Hospital | Longmont | Colorado | 80501 | — |
| Rocky Mountain Cancer Centers-Longmont | Longmont | Colorado | 80501 | — |
| Parker Adventist Hospital | Parker | Colorado | 80138 | — |
| Saint Mary Corwin Medical Center | Pueblo | Colorado | 81004 | — |
| Rocky Mountain Cancer Centers-Thornton | Thornton | Colorado | 80260 | — |
| MedStar Georgetown University Hospital | Washington D.C. | District of Columbia | 20007 | — |
| UM Sylvester Comprehensive Cancer Center at Kendall | Miami | Florida | 33176 | — |
| UM Sylvester Comprehensive Cancer Center at Plantation | Plantation | Florida | 33324 | — |
| Emory University Hospital/Winship Cancer Institute | Atlanta | Georgia | 30322 | — |
| Northside Hospital | Atlanta | Georgia | 30342 | — |
| Northside Hospital - Duluth | Duluth | Georgia | 30096 | — |
| Northside Hospital - Gwinnett | Lawrenceville | Georgia | 30046 | — |
| Lewis Cancer and Research Pavilion at Saint Joseph's/Candler | Savannah | Georgia | 31405 | — |
| Kaiser Permanente Moanalua Medical Center | Honolulu | Hawaii | 96819 | — |
| Saint Alphonsus Cancer Care Center-Boise | Boise | Idaho | 83706 | — |
| Saint Alphonsus Cancer Care Center-Caldwell | Caldwell | Idaho | 83605 | — |
| Kootenai Health - Coeur d'Alene | Coeur d'Alene | Idaho | 83814 | — |
| Walter Knox Memorial Hospital | Emmett | Idaho | 83617 | — |
| Idaho Urologic Institute-Meridian | Meridian | Idaho | 83642 | — |
| Saint Alphonsus Cancer Care Center-Nampa | Nampa | Idaho | 83687 | — |
| Kootenai Clinic Cancer Services - Post Falls | Post Falls | Idaho | 83854 | — |
| Kootenai Clinic Cancer Services - Sandpoint | Sandpoint | Idaho | 83864 | — |
| Saint Anthony's Health | Alton | Illinois | 62002 | — |
| Rush - Copley Medical Center | Aurora | Illinois | 60504 | — |
| Illinois CancerCare-Bloomington | Bloomington | Illinois | 61704 | — |
| Illinois CancerCare-Canton | Canton | Illinois | 61520 | — |
| Memorial Hospital of Carbondale | Carbondale | Illinois | 62902 | — |
| SIH Cancer Institute | Carterville | Illinois | 62918 | — |
| Illinois CancerCare-Carthage | Carthage | Illinois | 62321 | — |
| Centralia Oncology Clinic | Centralia | Illinois | 62801 | — |
| Saint Mary's Hospital | Centralia | Illinois | 62801 | — |
| Northwestern University | Chicago | Illinois | 60611 | — |
| University of Illinois | Chicago | Illinois | 60612 | — |
| Carle at The Riverfront | Danville | Illinois | 61832 | — |
| Cancer Care Specialists of Illinois - Decatur | Decatur | Illinois | 62526 | — |
| Decatur Memorial Hospital | Decatur | Illinois | 62526 | — |
| Illinois CancerCare-Dixon | Dixon | Illinois | 61021 | — |
| Carle Physician Group-Effingham | Effingham | Illinois | 62401 | — |
| Crossroads Cancer Center | Effingham | Illinois | 62401 | — |
| Elmhurst Memorial Hospital | Elmhurst | Illinois | 60126 | — |
| Illinois CancerCare-Eureka | Eureka | Illinois | 61530 | — |
| Illinois CancerCare-Galesburg | Galesburg | Illinois | 61401 | — |
| Western Illinois Cancer Treatment Center | Galesburg | Illinois | 61401 | — |
| Illinois CancerCare-Kewanee Clinic | Kewanee | Illinois | 61443 | — |
| Northwestern Medicine Lake Forest Hospital | Lake Forest | Illinois | 60045 | — |
| Illinois CancerCare-Macomb | Macomb | Illinois | 61455 | — |
| Carle Physician Group-Mattoon/Charleston | Mattoon | Illinois | 61938 | — |
| Good Samaritan Regional Health Center | Mount Vernon | Illinois | 62864 | — |
| Edward Hospital/Cancer Center | Naperville | Illinois | 60540 | — |
| Cancer Care Center of O'Fallon | O'Fallon | Illinois | 62269 | — |
| HSHS Saint Elizabeth's Hospital | O'Fallon | Illinois | 62269 | — |
| Illinois CancerCare-Ottawa Clinic | Ottawa | Illinois | 61350 | — |
| Illinois CancerCare-Pekin | Pekin | Illinois | 61554 | — |
| Illinois CancerCare-Peoria | Peoria | Illinois | 61615 | — |
| Methodist Medical Center of Illinois | Peoria | Illinois | 61636 | — |
| Illinois CancerCare-Peru | Peru | Illinois | 61354 | — |
| Valley Radiation Oncology | Peru | Illinois | 61354 | — |
| Edward Hospital/Cancer Center?Plainfield | Plainfield | Illinois | 60585 | — |
| Illinois CancerCare-Princeton | Princeton | Illinois | 61356 | — |
| Southern Illinois University School of Medicine | Springfield | Illinois | 62702 | — |
| Springfield Clinic | Springfield | Illinois | 62702 | — |
| Memorial Medical Center | Springfield | Illinois | 62781 | — |
| Southwest Illinois Health Services LLP | Swansea | Illinois | 62226 | — |
| Carle Cancer Center | Urbana | Illinois | 61801 | — |
| The Carle Foundation Hospital | Urbana | Illinois | 61801 | — |
| Illinois CancerCare - Washington | Washington | Illinois | 61571 | — |
| Rush-Copley Healthcare Center | Yorkville | Illinois | 60560 | — |
| Reid Health | Richmond | Indiana | 47374 | — |
| Mary Greeley Medical Center | Ames | Iowa | 50010 | — |
| McFarland Clinic - Ames | Ames | Iowa | 50010 | — |
| Mission Cancer and Blood - Ankeny | Ankeny | Iowa | 50023 | — |
| McFarland Clinic - Boone | Boone | Iowa | 50036 | — |
| Saint Anthony Regional Hospital | Carroll | Iowa | 51401 | — |
| Mercy Cancer Center-West Lakes | Clive | Iowa | 50325 | — |
| Mission Cancer and Blood - West Des Moines | Clive | Iowa | 50325 | — |
| Alegent Health Mercy Hospital | Council Bluffs | Iowa | 51503 | — |
| Greater Regional Medical Center | Creston | Iowa | 50801 | — |
| Iowa Methodist Medical Center | Des Moines | Iowa | 50309 | — |
| Mission Cancer and Blood - Des Moines | Des Moines | Iowa | 50309 | — |
| Broadlawns Medical Center | Des Moines | Iowa | 50314 | — |
| Mercy Medical Center - Des Moines | Des Moines | Iowa | 50314 | — |
| Mission Cancer and Blood - Laurel | Des Moines | Iowa | 50314 | — |
| Iowa Lutheran Hospital | Des Moines | Iowa | 50316 | — |
| McFarland Clinic - Trinity Cancer Center | Fort Dodge | Iowa | 50501 | — |
| Trinity Regional Medical Center | Fort Dodge | Iowa | 50501 | — |
| McFarland Clinic - Jefferson | Jefferson | Iowa | 50129 | — |
| McFarland Clinic - Marshalltown | Marshalltown | Iowa | 50158 | — |
| Methodist West Hospital | West Des Moines | Iowa | 50266-7700 | — |
| Mercy Medical Center-West Lakes | West Des Moines | Iowa | 50266 | — |
| Central Care Cancer Center - Garden City | Garden City | Kansas | 67846 | — |
| Central Care Cancer Center - Great Bend | Great Bend | Kansas | 67530 | — |
| Flaget Memorial Hospital | Bardstown | Kentucky | 40004 | — |
| Commonwealth Cancer Center-Corbin | Corbin | Kentucky | 40701 | — |
| Saint Joseph Hospital | Lexington | Kentucky | 40504 | — |
| Saint Joseph Radiation Oncology Resource Center | Lexington | Kentucky | 40504 | — |
| Saint Joseph Hospital East | Lexington | Kentucky | 40509 | — |
| Saint Joseph London | London | Kentucky | 40741 | — |
| Jewish Hospital | Louisville | Kentucky | 40202 | — |
| Saints Mary and Elizabeth Hospital | Louisville | Kentucky | 40215 | — |
| UofL Health Medical Center Northeast | Louisville | Kentucky | 40245 | — |
| Saint Joseph Mount Sterling | Mount Sterling | Kentucky | 40353 | — |
| Mercy Health - Paducah Medical Oncology and Hematology | Paducah | Kentucky | 42003 | — |
| Jewish Hospital Medical Center South | Shepherdsville | Kentucky | 40165 | — |
| MedStar Franklin Square Medical Center/Weinberg Cancer Institute | Baltimore | Maryland | 21237 | — |
| Boston Medical Center | Boston | Massachusetts | 02118 | — |
| Hickman Cancer Center | Adrian | Michigan | 49221 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT04462406, 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 20, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT04462406 live on ClinicalTrials.gov.