A Phase I Dose Escalation Study To Assess Safety And Efficacy Of ADP-A2M4CD8 As Monotherapy Or In Combination With Either Nivolumab Or Pembrolizumab In HLA-A2+ Subjects With MAGE-A4 Positive Tumors (SURPASS)
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Study Summary
To evaluate safety, tolerability and antitumor activity ADP-A2M4CD8 in patients with HLA-A*02 with MAGE-A4+ locally advanced inoperable or metastatic multiple solid cancers.
To characterize safety, tolerability, and antitumor activity across multiple tumor types.
Safety, efficacy, pharmacokinetics, pharmacodynamics, and tumor biopsy characterization are evaluated.
To evaluate ADP-A2M4CD8 in combination with a checkpoint inhibitor in the second line setting in urothelial cancers
To evaluate ADP--A2M4CD8 in combination with first-line standard of care (pembrolizumab) in head & neck cancer
To report updated clinical outcomes in patients with urothelial cancer (UC).
Autologous T-cells are obtained by leukapheresis, transduced with a self-inactivating lentiviral vector expressing the MAGE-A4-specific T-cell receptor and the CD8α co-receptor, and infused back to the patients as ADP-A2M4CD8 following lymphodepleting chemotherapy.
- Key Inclusion criteria
- Age >or = 18 and
- Subject is positive for at least 1 HLA-A*02 inclusion allele
- Histologically or cytogenetically confirmed diagnosis of urothelial cancer, esophageal , esophagogastric junction (EGJ) cancer, gastric cancer, non-small cell lung carcinoma (NSCLC), head and neck or ovarian cancer.
- Measurable disease according to RECIST v1.1 prior to leukapheresis and lymphodepletion.
- Tumor shows MAGE-A4 expression as confirmed by central laboratory
- ECOG Performance Status of 0 or 1.
- Left ventricular ejection fraction (LVEF) =50% or the institutional lower limit of normal range, whichever is lower Note: other protocol defined Inclusion/Exclusion criteria may apply
- Subjects must have > or = 90% room air oxygen saturation at rest at Screening (within 7 days of leukapheresis) and at Baseline.
- Key eligibility criteria include >30% of tumor cells expressing MAGE-A4 (≥2+ by immunohistochemistry); positivity for HLA-A*02:01, 02:02, 02:03, or 02:06 alleles; measurable disease per RECIST v1.1 prior to lymphodepletion; and ECOG performance status of 0 or 1.
- Positive for any HLA-A*02 allele other than: one of the inclusion alleles
- History of allergic reactions attributed to compounds of similar chemical or biologic composition to fludarabine, cyclophosphamide or other agents used in the study
- Active 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 Inclusion/Exclusion criteria may apply.
Clinical Study Information for Healthcare Providers
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