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Taking people in United StatesPhase 1/2

SPEARHEAD-3 Pediatric Study

Key facts

Where
Bethesda, Boston, Cincinnati, Durham, Madison, New York, Palo Alto, Philadelphia, Seattle, and St Louis, United StatesSee the 10 sites
Phase
Phase 1/2

Could this be for you?

Answer for yourself. This is not a decision: only the study team can say whether you can take part.

  • Are you between 2 and 21 years old?

Source: NCT05642455, who can take part

Where in United States

  • National Institutes of HealthBethesda, United StatesTaking people
  • Dana-Farber Cancer InstituteBoston, United StatesTaking people
  • Cincinnati Children's Hospital Medical CenterCincinnati, United StatesTaking people
  • Duke University School of MedicineDurham, United StatesTaking people
  • University of Wisconsin Cancer CenterMadison, United StatesTaking people
  • Memorial Sloan Kettering KidsNew York, United StatesTaking people
  • Stanford UniversityPalo Alto, United StatesTaking people
  • Children's Hospital of PhiledephiaPhiladelphia, United StatesTaking people
  • Seattle Children's HospitalSeattle, United StatesTaking people
  • Washington UniversitySt Louis, United StatesTaking people

Questions to ask the study team

  1. How often do I need to come in, and for how long each time?
  2. Are travel costs paid?
  3. Can I keep my own doctor?
  4. What happens if I want to stop?
Print a page for my doctor

Trial details

Who runs it
USWM CT, LLC
Trial code
NCT05642455
Record updated
11 August 2026
Original description
This is a pediatric basket study to investigate the safety and efficacy of afamitresgene autoleucel in HLA-A*02 eligible and MAGE-A4 positive subjects aged 2-17 years of age with advanced cancers.Read full original descriptionShow less

A Phase 1/2 Open Label, Basket Study to Assess the Safety, Tolerability and Anti-Tumor Activity of Afamitresgene Autoleucel in Pediatric Subjects With MAGE-A4 Positive Tumors

This is a pediatric basket study to investigate the safety and efficacy of afamitresgene autoleucel in HLA-A*02 eligible and MAGE-A4 positive subjects aged 2-17 years of age with advanced cancers.

Inclusion: Subject has histologically confirmed diagnosis of any one of the following cancers: (A) Synovial Sarcoma (SS), (B) MPNST, (C) Neuroblastoma, or (D) Osteosarcoma (OS); Age:; (A) Synovial Sarcoma: 2 to 17 years (B) MPNST, Neuroblastoma and Osteosarcoma: 2 to 21 years; Body weight ≥ 10 kg; Must have previously received a systemic chemotherapy; Measurable disease prior to lymphodepletion according to RECIST v1.1 (or INCR, 2017 Neuroblastoma only); HLA-A*02 positive; Tumor shows MAGE-A4 expression confirmed by central laboratory; Performance Status:; (A) Subjects ≥16: Eastern Cooperative Oncology Group (ECOG) 0 or 1 (B) Subjects 2 to 16: Lansky score ≥ 80; Subject has anticipated life expectancy of greater than 3 months in the opinion of the investigator.

Exclusion: History of allergic reactions attributed to compounds of similar chemical or biologic composition to fludarabine, cyclophosphamide; History of autoimmune or immune mediated disease; Other prior malignancy that is not considered by the Investigator to be in complete remission; Clinically significant cardiovascular disease; Active infection with human immunodeficiency virus, hepatitis B virus, hepatitis C virus, or human T cell leukemia virus; Experiencing ongoing rapid disease progression that in the opinion of the Investigator significantly increases the subjects risk associated with treatment; Positive for HLA-A*02:05 in either allele; or any A*02 having same protein sequence as HLA-A*02:05; Known central nervous system (CNS) metastases; Pregnant or breastfeeding.

ClinicalTrials.gov NCT05642455