Medical Information Only. Always consult your healthcare provider before enrolling in any clinical trial.

NCT05286801 · ClinicalTrials.gov registry record · Phase 1

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

A Phase 1 study of Malignant Solid Neoplasm and Recurrent Malignant Solid Neoplasm, sponsored by National Cancer Institute (NCI).

Active
Registry status
Phase 1
Development phase
86
Enrollment target
20
Study locations

NCT05286801: Active Phase 1 study of Malignant Solid Neoplasm and Recurrent Malignant Solid Neoplasm, sponsored by National Cancer Institute (NCI).

NCT05286801 is a Phase 1 study of Malignant Solid Neoplasm and Recurrent Malignant Solid Neoplasm that is active but no longer recruiting, run by National Cancer Institute (NCI). The registered enrollment target is 86 participants, below the 1,140-participant average among 176 other Malignant Solid Neoplasm trials with a reported enrollment target (92% lower). The trial reports 20 study locations across 13 states. According to ClinicalTrials.gov, the official US trial registry.

View on ClinicalTrials.gov ↗

View your shortlist →

The verdict

NCT05286801, a Phase 1 study of Malignant Solid Neoplasm and Recurrent Malignant Solid Neoplasm, is active but no longer recruiting, sponsored by National Cancer Institute (NCI).

ACTIVE NOT RECRUITING
Registry status
Phase 1
Development phase
86 participants
Enrollment target
20
Study locations

Study Summary

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.

Primary Outcome

Frequency (%) of pediatric patients (\<18 years) with cycle 1 dose limiting toxicities attributable to tiragolumab as monotherapy in the safety cohort (Part A).

Interventions

  • PROCEDURE Biospecimen Collection
  • PROCEDURE Computed Tomography
  • BIOLOGICAL Atezolizumab
  • PROCEDURE Echocardiography Test
  • OTHER Fludeoxyglucose F-18

Study Locations (20)

California

  • Children's Hospital Los Angeles - Los Angeles
  • Children's Hospital of Orange County - Orange
  • Lucile Packard Children's Hospital Stanford University - Palo Alto
  • UCSF Medical Center-Mission Bay - San Francisco

Illinois

  • Lurie Children's Hospital-Chicago - Chicago
  • University of Chicago Comprehensive Cancer Center - Chicago

Maryland

  • Johns Hopkins University/Sidney Kimmel Cancer Center - Baltimore
  • National Institutes of Health Clinical Center - Bethesda

Missouri

  • Children's Mercy Hospitals and Clinics - Kansas City
  • Washington University School of Medicine - St Louis

New York

  • NYP/Columbia University Medical Center/Herbert Irving Comprehensive Cancer Center - New York
  • Memorial Sloan Kettering Cancer Center - New York

Alabama

  • Children's Hospital of Alabama - Birmingham

Colorado

  • Children's Hospital Colorado - Aurora

District of Columbia

  • Children's National Medical Center - Washington D.C.

Trial Details

FieldValue
Enrollment Target 86 participants
Start Date 2022-11-17
Est. Completion 2030-03-31
Phase Phase 1
National Cancer Institute (NCI)

3,257 total trials

What the registry record for NCT05286801 still lists

NCT05286801 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 86 participants, a relatively small participant target, below the 1,140-participant average among 176 other Malignant Solid Neoplasm trials with a reported enrollment target (92% lower).

The record links to 10 conditions, with Malignant Solid Neoplasm appearing as the primary indexed condition, and to 5 interventions - of which Biospecimen Collection is the first listed.

NCT05286801 names 20 study sites across 13 states, led by California, Illinois, Maryland.

Frequently Asked Questions

What is clinical trial NCT05286801 about?

NCT05286801 is a clinical study titled "Tiragolumab and Atezolizumab for the Treatment of Relapsed or Refractory SMARCB1 or SMARCA4 Deficient Tumors". 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 S...

What is the current status of trial NCT05286801?

This trial is currently active not recruiting. It is a Phase 1 study. The enrollment target is 86 participants. The study started on 2022-11-17. Estimated completion is 2030-03-31.

What conditions does trial NCT05286801 study?

This clinical trial studies the following conditions: Malignant Solid Neoplasm, Recurrent Malignant Solid Neoplasm, Atypical Teratoid/Rhabdoid Tumor, Epithelioid Sarcoma, Kidney Medullary Carcinoma.

What interventions are being tested in trial NCT05286801?

The interventions under investigation include: Biospecimen Collection (PROCEDURE), Computed Tomography (PROCEDURE), Atezolizumab (BIOLOGICAL), Echocardiography Test (PROCEDURE), Fludeoxyglucose F-18 (OTHER).

Who is sponsoring clinical trial NCT05286801?

This trial is sponsored by National Cancer Institute (NCI), which has 3,257 total clinical trials registered on ClinicalTrials.gov.

Where is trial NCT05286801 being conducted?

This trial has 20 study locations across Alabama, California, Colorado, District of Columbia, Georgia. Contact the study sites directly through ClinicalTrials.gov for enrollment availability.

Similar trials for Malignant Solid Neoplasm

Matched on the same primary condition, ranked to surface studies in the same phase first, then by recruiting status, no relevance scoring or editorial curation.

Where NCT05286801's enrollment target sits among peer trials

86 96th of 176 higher than 81 of 176 other Malignant Solid Neoplasm trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Malignant Solid Neoplasm trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source ClinicalTrials.gov registry export · 2026-08-08

Nationwide trials with similar profiles

Cross-condition peers matched on enrollment target and registry start date, not the same-condition list above.

Similar enrollment target

  • NCT01639508 · 86 participants · Phase 2

    Cabozantinib in Patients With RET Fusion-Positive Advanced Non-Small Cell Lung Cancer and Those With Other Genotypes: ROS1 or NTRK Fusions or Increased MET or AXL Activity

  • NCT03519269 · 86 participants · NA

    Navio Robotic Versus Conventional Total Knee Arthroplasty

  • NCT04132999 · 86 participants · NA

    PAP for Children With DS and OSAS

  • NCT04545957 · 86 participants · NA

    Jump: MR Simulation For Radiation Therapy Master Protocol

Similar registry start date

  • NCT05962346 · started 2026-12 · NA

    Fetal Endoscopic Tracheal Occlusion for Congenital Diaphragmatic Hernia

  • NCT07125183 · started 2026-12 · Phase 2

    Study on Efficacy and Tolerability of Weekly Doxorubicin in Elderly Patients With Advanced or Metastatic Leiomyosarcoma

  • NCT07292298 · started 2026-11 · Phase 2

    Phase 2 Single-Arm Rectal Cancer Brachytherapy for Patients With Low-Lying Residual Adenocarcinoma After Total Neoadjuvant Therapy to Improve Organ Preservation Rates

  • NCT04263285 · started 2026-10 · NA

    Treatment of Depression Post-SCI

Source: ClinicalTrials.gov NCT05286801, the US trial registry maintained by the National Library of Medicine. NCT05286801 (small enrollment · wide site footprint · active not recruiting) retrieved and formatted by PlainTrial, see methodology.