Active, Not Recruiting Tiragolumab and Atezolizumab for the Treatment of Relapsed or Refractory SMARCB1 or SMARCA4 Deficient Tumors NCT05286801 Conditions Atypical Teratoid/Rhabdoid Tumor, Chordoma, Epithelioid Sarcoma, +22 more Locations Children's Hospital of Alabama — Birmingham, Alabama, United States Children's Hospital Los Angeles — Los Angeles, California, United States Children's Hospital of Orange County — Orange, California, United States Lucile Packard Children's Hospital Stanford University — Palo Alto, California, United States View all 40 locations View more locations Show fewer locations Loading locations... View Trial Details