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- W4307450117 abstract "<h3>Introduction</h3> ADP-A2M4CD8, a next-generation specific peptide enhanced affinity receptor (SPEAR) T-cell therapy supplemented with a CD8α co-receptor, is being evaluated in the Phase 1 SURPASS trial (NCT04044859) in multiple solid tumours, including ovarian cancer. Promising anti-tumour activity, including a 36% overall response rate (1 complete response [CR], 7 partial responses [PR] in 22 evaluable patients; 2 August 2021 data cut-off) and a favourable benefit to risk profile were reported.<sup>1</sup> We report preliminary anti-tumour activity in ovarian cancer and updated safety in all tumours. <h3>Methods</h3> SURPASS is a first-in-human trial evaluating ADP-A2M4CD8 using a modified 3+3 design, with 2 dose cohorts and an expansion cohort.<sup>1</sup> T-cells are collected by leukapheresis, transduced, and infused into the patient after lymphodepletion. Eligible patients express human leukocyte antigen A*02 with melanoma-associated antigen (MAGE)-A4-positive tumours. Patients with ovarian cancer must have received platinum-based chemotherapy and progressed ≤12 months post platinum therapy. <h3>Results</h3> As of 1 August 2022, 14 patients with ovarian cancer had received 1.14–9.95×10<sup>9</sup> transduced T-cells. Median age was 59 years (range, 40–75); median number of prior systemic therapy regimens was 4 (range, 2–8); median MAGE-A4 expression H-score was 237.5 (range, 95–300). Adverse events in the overall population were consistent with lymphodepletion chemotherapy or cellular therapy; similar safety results were seen in the ovarian cancer subgroup (table 1). There was 1 Grade 5 cytokine release syndrome. Best overall responses were 1 CR, 4 PR, 6 stable disease (SD), 2 progressive disease and 1 not evaluable, giving a 36% overall response rate and a 79% disease control rate (CR+PR+SD, figure 1). <h3>Conclusions</h3> ADP-A2M4CD8 SPEAR T-cell therapy showed preliminary anti-tumour activity in heavily pre-treated patients with MAGE-A4+ advanced ovarian cancer, with tolerable emerging safety results. The trial now includes an anti-programmed death-ligand 1 combination treatment cohort. 1. Hong DS, et al. Ann Oncol. 2021;32(suppl5):540P." @default.
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- W4307450117 date "2022-10-01" @default.
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- W4307450117 title "2022-LBA-414-ESGO Preliminary clinical outcome of ADP-A2M4CD8, a next-generation autologous T-cell receptor T-cell therapy, in patients with advanced epithelial ovarian cancer" @default.
- W4307450117 doi "https://doi.org/10.1136/ijgc-2022-esgo.1019" @default.
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