A Study to Evaluate ADP-A2M4 SPEAR™ T Cells in Subjects with Advanced Synovial Sarcoma or Myxoid/Round Cell Liposarcoma


About this study

The purpose of this study is to evaluate genetically-engineered ADP-A2M4 in HLA-A*02 subjects with metastatic or inoperable (advanced) Synovial Sarcoma or Myxoid/Round Cell Liposarcoma (MRCLS) who have received prior chemotherapy and whose tumor expresses the MAGE-A4 tumor antigen.

Participation eligibility

Participant eligibility includes age, gender, type and stage of disease, and previous treatments or health concerns. Guidelines differ from study to study, and identify who can or cannot participate. There is no guarantee that every individual who qualifies and wants to participate in a trial will be enrolled. Contact the study team to discuss study eligibility and potential participation.

Inclusion Criteria:

  • Age ≥ 16 and < 75 years old.
  • Diagnosis of advanced synovial sarcoma or myxoid liposarcoma / myxoid round cell liposarcoma confirmed by cytogenetics. 
  • Previously received either an anthracycline or ifosfamide containing regimen. 
  • Measurable disease according to RECIST v1.1.
  • HLA-A*02 positive.
  • Tumor shows MAGE-A4 expression confirmed by central laboratory.
  • ECOG Performance Status of 0 or1. 
  • Left ventricular ejection fraction (LVEF) ≥ 40%.
    • Note: other protocol defined Inclusion criteria may apply.

Exclusion Criteria:

  • HLA-A*02:05 in either allele.
  • HLA-A*02:07 or any A*02 null allele as the sole HLA-A*02 allele.
  • History of allergic reactions attributed to compounds of similar chemical or biologic composition to fludarabine, cyclophosphamide or other agents used in the study. 
  • History of autoimmune or immune mediated disease.
  • Leptomeningeal disease, carcinomatous meningitis or symptomatic CNS metastases. 
  • Other prior malignancy that is not considered by the Investigator to be in complete remission.
  • Clinically significant cardiovascular disease.
  • Uncontrolled intercurrent illness.
  • Active infection with human immunodeficiency virus, hepatitis B virus, hepatitis C virus, or human T cell leukemia virus.
  • Pregnant or breastfeeding.
    • Note: other protocol defined Exclusion criteria may apply.

Participating Mayo Clinic locations

Study statuses change often. Please contact the study team for the most up-to-date information regarding possible participation.

Mayo Clinic Location Status Contact

Jacksonville, Fla.

Mayo Clinic principal investigator

Steven Attia, D.O.

Open for enrollment

Contact information:

Cancer Center Clinical Trials Referral Office

(855) 776-0015

More information


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