ClinicalTrials.gov record
Testing the Combination of Two Anticancer Drugs M1774 (Tuvusertib) and Avelumab to Evaluate Their Safety and Effectiveness in Treating Merkel Cell Skin Cancer, MATRiX Trial
ClinicalTrials.gov ID: NCT05947500
Public ClinicalTrials.gov record NCT05947500. 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.
ClinicalTrials.gov public records Last synced May 20, 2026, 11:44 PM EDT
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
A Randomized Phase 2 Study of ATR Inhibition in Advanced PD-(L)1-Refractory Merkel Cell Carcinoma: The MATRiX Trial
Study identification
- NCT ID
- NCT05947500
- Recruitment status
- Active, not recruiting
- Study type
- Interventional
- Phase
- Phase 2
- Lead sponsor
- National Cancer Institute (NCI)
- NIH
- Enrollment
- 50 participants
Conditions and interventions
Conditions
Interventions
- Avelumab Drug
- Biopsy Procedure Procedure
- Biospecimen Collection Procedure
- Computed Tomography Procedure
- Magnetic Resonance Imaging Procedure
- Positron Emission Tomography Procedure
- Tuvusertib Drug
Drug · Procedure
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
- May 20, 2024
- Primary completion
- Dec 31, 2027
- Completion
- Dec 31, 2027
- Last update posted
- May 12, 2026
2024 – 2028
United States locations
- U.S. sites
- 50
- U.S. states
- 19
- U.S. cities
- 42
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| UCI Health - Chao Family Comprehensive Cancer Center and Ambulatory Care | Irvine | California | 92612 | — |
| UC San Diego Moores Cancer Center | La Jolla | California | 92093 | — |
| Keck Medicine of USC Koreatown | Los Angeles | California | 90020 | — |
| Los Angeles General Medical Center | Los Angeles | California | 90033 | — |
| USC / Norris Comprehensive Cancer Center | Los Angeles | California | 90033 | — |
| USC Norris Oncology/Hematology-Newport Beach | Newport Beach | California | 92663 | — |
| UC Irvine Health/Chao Family Comprehensive Cancer Center | Orange | California | 92868 | — |
| Stanford Cancer Institute Palo Alto | Palo Alto | California | 94304 | — |
| UCHealth University of Colorado Hospital | Aurora | Colorado | 80045 | — |
| Yale University | New Haven | Connecticut | 06520 | — |
| Sibley Memorial Hospital | Washington D.C. | District of Columbia | 20016 | — |
| UM Sylvester Comprehensive Cancer Center at Aventura | Aventura | Florida | 33180 | — |
| UM Sylvester Comprehensive Cancer Center at Coral Gables | Coral Gables | Florida | 33146 | — |
| UM Sylvester Comprehensive Cancer Center at Deerfield Beach | Deerfield Beach | Florida | 33442 | — |
| University of Miami Miller School of Medicine-Sylvester Cancer Center | Miami | Florida | 33136 | — |
| UM Sylvester Comprehensive Cancer Center at Kendall | Miami | Florida | 33176 | — |
| UM Sylvester Comprehensive Cancer Center at Plantation | Plantation | Florida | 33324 | — |
| Moffitt Cancer Center - McKinley Campus | Tampa | Florida | 33612 | — |
| Moffitt Cancer Center | Tampa | Florida | 33612 | — |
| Emory University Hospital/Winship Cancer Institute | Atlanta | Georgia | 30322 | — |
| Northwestern University | Chicago | Illinois | 60611 | — |
| Memorial Hospital East | Shiloh | Illinois | 62269 | — |
| HaysMed | Hays | Kansas | 67601 | — |
| University of Kansas Cancer Center | Kansas City | Kansas | 66160 | — |
| Lawrence Memorial Hospital | Lawrence | Kansas | 66044 | — |
| The University of Kansas Cancer Center - Olathe | Olathe | Kansas | 66061 | — |
| University of Kansas Cancer Center-Overland Park | Overland Park | Kansas | 66210 | — |
| University of Kansas Hospital-Indian Creek Campus | Overland Park | Kansas | 66211 | — |
| Salina Regional Health Center | Salina | Kansas | 67401 | — |
| University of Kansas Health System Saint Francis Campus | Topeka | Kansas | 66606 | — |
| University of Kansas Hospital-Westwood Cancer Center | Westwood | Kansas | 66205 | — |
| Johns Hopkins University/Sidney Kimmel Cancer Center | Baltimore | Maryland | 21287 | — |
| Dana-Farber Cancer Institute | Boston | Massachusetts | 02215 | — |
| Siteman Cancer Center at Saint Peters Hospital | City of Saint Peters | Missouri | 63376 | — |
| Siteman Cancer Center at West County Hospital | Creve Coeur | Missouri | 63141 | — |
| University Health Truman Medical Center | Kansas City | Missouri | 64108 | — |
| University of Kansas Cancer Center - North | Kansas City | Missouri | 64154 | — |
| University of Kansas Cancer Center - Lee's Summit | Lee's Summit | Missouri | 64064 | — |
| Washington University School of Medicine | St Louis | Missouri | 63110 | — |
| Siteman Cancer Center-South County | St Louis | Missouri | 63129 | — |
| Siteman Cancer Center at Christian Hospital | St Louis | Missouri | 63136 | — |
| Laura and Isaac Perlmutter Cancer Center at NYU Langone | New York | New York | 10016 | — |
| Wake Forest University Health Sciences | Winston-Salem | North Carolina | 27157 | — |
| University of Oklahoma Health Sciences Center | Oklahoma City | Oklahoma | 73104 | — |
| University of Pittsburgh Cancer Institute (UPCI) | Pittsburgh | Pennsylvania | 15232 | — |
| UT Southwestern/Simmons Cancer Center-Dallas | Dallas | Texas | 75390 | — |
| Huntsman Cancer Institute/University of Utah | Salt Lake City | Utah | 84112 | — |
| University of Virginia Cancer Center | Charlottesville | Virginia | 22908 | — |
| VCU Massey Comprehensive Cancer Center | Richmond | Virginia | 23298 | — |
| Fred Hutchinson Cancer Center | Seattle | Washington | 98109 | — |
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 NCT05947500, 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 12, 2026 · Synced May 20, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT05947500 live on ClinicalTrials.gov.