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    Long-term safety and activity of NY-ESO-1 SPEAR T cells after autologous stem cell transplant for myeloma

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    Author
    Stadtmauer, E.A.
    Faitg, T.H.
    Lowther, D.E.
    Date
    2019
    Journal
    Blood Advances
    Publisher
    American Society of Hematology
    Type
    Article
    
    Metadata
    Show full item record
    See at
    https://doi.org/10.1182/bloodadvances.2019000194
    Abstract
    This study in patients with relapsed, refractory, or high-risk multiple myeloma (MM) evaluated the safety and activity of autologous T cells engineered to express an affinity-enhanced T-cell receptor (TCR) that recognizes a peptide shared by cancer antigens New York esophageal squamous cell carcinoma-1 (NY-ESO-1) and L-antigen family member 1 (LAGE-1) and presented by HLA-A*02:01. T cells collected from 25 HLA-A*02:01-positive patients with MM expressing NY-ESO-1 and/or LAGE-1 were activated, transduced with self-inactivating lentiviral vector encoding the NY-ESO-1c259TCR, and expanded in culture. After myeloablation and autologous stem cell transplant (ASCT), all 25 patients received an infusion of up to 1 3 1010 NY-ESO-1 specific peptide enhanced affinity receptor (SPEAR) T cells. Objective response rate (International Myeloma Working Group consensus criteria) was 80% at day 42 (95% confidence interval [CI], 0.59-0.93), 76% at day 100 (95% CI, 0.55-0.91), and 44% at 1 year (95% CI, 0.24-0.65). At year 1, 13/25 patients were disease progression-free (52%); 11 were responders (1 stringent complete response, 1 complete response, 8 very good partial response, 1 partial response). Three patients remained disease progression-free at 38.6, 59.2, and 60.6 months post-NY-ESO-1 SPEAR T-cell infusion. Median progression-free survival was 13.5 months (range, 3.2-60.6 months); median overall survival was 35.1 months (range, 6.4-66.7 months). Infusions were well tolerated; cytokine release syndrome was not reported. No fatal serious adverse events occurred during study conduct. NY-ESO-1 SPEAR T cells expanded in vivo, trafficked to bone marrow, demonstrated persistence, and exhibited tumor antigen-directed functionality. In this MM patient population, NY-ESO-1 SPEAR T-cell therapy in the context of ASCT was associated with antitumor activity. This trial was registered at www.clinicaltrials.gov as #NCT01352286.
    Sponsors
    This was a phase 1/2a open-label clinical trial carried out at 2 centers in the United States (clinicaltrials.gov identifier: NCT01352286).
    Keyword
    NY-ESO-1 SPEAR T cell therapy
    Multiple Myeloma--therapy
    Identifier to cite or link to this item
    https://www.scopus.com/inward/record.uri?eid=2-s2.0-85068748507&doi=10.1182%2fbloodadvances.2019000194&partnerID=40&md5=d8167e7b1ae5d7b2a15b6e4efe9c717f; http://hdl.handle.net/10713/10675
    ae974a485f413a2113503eed53cd6c53
    10.1182/bloodadvances.2019000194
    Scopus Count
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    UMB Open Access Articles 2019

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