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Active, not recruiting Phase 1Phase 2 Interventional

Tiragolumab and Atezolizumab for the Treatment of Relapsed or Refractory SMARCB1 or SMARCA4 Deficient Tumors

ClinicalTrials.gov ID: NCT05286801

Public ClinicalTrials.gov record NCT05286801. 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 Oct 17, 2026, 9:33 AM 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 Phase 1/2 Study of Tiragolumab (NSC# 827799) and Atezolizumab (NSC# 783608) in Patients With Relapsed or Refractory SMARCB1 or SMARCA4 Deficient Tumors

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

This phase I/II trial studies how well tiragolumab and atezolizumab works when given to children and adults with SMARCB1 or SMARCA4 deficient tumors that have either come back (relapsed) or do not respond to therapy (refractory). SMARCB1 or SMARCA4 deficiency means that tumor cells are missing the SMARCB1 and SMARCA4 genes, seen with some aggressive cancers that are typically hard to treat. Immunotherapy with monoclonal antibodies, such as tiragolumab and atezolizumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread.

Study identification

NCT ID
NCT05286801
Recruitment status
Active, not recruiting
Study type
Interventional
Phase
Phase 1, Phase 2
Enrollment
86 participants

Conditions and interventions

Eligibility (public fields only)

Age range
12 Months 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
Nov 17, 2022 (Actual)
Primary completion
Mar 31, 2030 (Estimated)
Completion
Mar 31, 2030 (Estimated)
Last update posted
Jul 14, 2026

2022 – 2030

United States locations

U.S. sites
35
U.S. states
22
U.S. cities
33
Facility City State ZIP Site status
Children's Hospital of Alabama Birmingham Alabama 35233 —
Children's Hospital Los Angeles Los Angeles California 90027 —
Children's Hospital of Orange County Orange California 92868 —
Lucile Packard Children's Hospital Stanford University Palo Alto California 94304 —
UCSF Medical Center-Mission Bay San Francisco California 94158 —
Children's Hospital Colorado Aurora Colorado 80045 —
Children's National Medical Center Washington D.C. District of Columbia 20010 —
Children's Healthcare of Atlanta - Arthur M Blank Hospital Atlanta Georgia 30329 —
Lurie Children's Hospital-Chicago Chicago Illinois 60611 —
University of Chicago Comprehensive Cancer Center Chicago Illinois 60637 —
Riley Hospital for Children Indianapolis Indiana 46202 —
Johns Hopkins University/Sidney Kimmel Cancer Center Baltimore Maryland 21287 —
National Institutes of Health Clinical Center Bethesda Maryland 20892 —
Dana-Farber Cancer Institute Boston Massachusetts 02215 —
C S Mott Children's Hospital Ann Arbor Michigan 48109 —
University of Minnesota/Masonic Cancer Center Minneapolis Minnesota 55455 —
Children's Mercy Hospitals and Clinics Kansas City Missouri 64108 —
Washington University School of Medicine St Louis Missouri 63110 —
NYP/Columbia University Medical Center/Herbert Irving Comprehensive Cancer Center New York New York 10032 —
Memorial Sloan Kettering Cancer Center New York New York 10065 —
New York Medical College Valhalla New York 10595 —
Duke University Medical Center Durham North Carolina 27710 —
Cincinnati Children's Hospital Medical Center Cincinnati Ohio 45229 —
Nationwide Children's Hospital Columbus Ohio 43205 —
Oregon Health and Science University Portland Oregon 97239 —
Children's Hospital of Philadelphia Philadelphia Pennsylvania 19104 —
Children's Hospital of Pittsburgh of UPMC Pittsburgh Pennsylvania 15224 —
Saint Jude Children's Research Hospital Memphis Tennessee 38105 —
Vanderbilt University/Ingram Cancer Center Nashville Tennessee 37232 —
UT Southwestern/Simmons Cancer Center-Dallas Dallas Texas 75390 —
Cook Children's Medical Center Fort Worth Texas 76104 —
Baylor College of Medicine/Dan L Duncan Comprehensive Cancer Center Houston Texas 77030 —
Primary Children's Hospital Salt Lake City Utah 84113 —
Seattle Children's Hospital Seattle Washington 98105 —
Children's Hospital of Wisconsin Milwaukee Wisconsin 53226 —

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 5 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT05286801, 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 Jul 14, 2026 · Synced Oct 17, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT05286801 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →