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PD-1 Blockade in Anaplastic Thyroid Carcinoma

Journal of Clinical Oncology, vol. 38, pp. 2620–2627

Abstract

PURPOSE Anaplastic thyroid carcinoma is an aggressive malignancy that is almost always fatal and lacks effective systemic treatment options for patients with BRAF-wild type disease. As part of a phase I/II study in patients with advanced/metastatic solid tumors, patients with anaplastic thyroid carcinoma were treated with spartalizumab, a humanized monoclonal antibody against the programmed death-1 (PD-1) receptor. METHODS We enrolled patients with locally advanced and/or metastatic anaplastic thyroid carcinoma in a phase II cohort of the study. Patients received 400 mg spartalizumab intravenously, once every 4 weeks. The overall response rate was determined according to RECIST v1.1. RESULTS Forty-two patients were enrolled. Adverse events were consistent with those previously observed with PD-1 blockade. Most common treatment-related adverse events were diarrhea (12%), pruritus (12%), fatigue (7%), and pyrexia (7%). The overall response rate was 19%, including three patients with a complete response and five with a partial response. Most patients had baseline tumor biopsies positive for PD-L1 expression (n = 28/40 evaluable), and response rates were higher in PD-L1–positive (8/28; 29%) versus PD-L1–negative (0/12; 0%) patients. The highest rate of response was observed in the subset of patients with PD-L1 ≥ 50% (6/17; 35%). Responses were seen in both BRAF-nonmutant and BRAF-mutant patients and were durable, with a 1-year survival of 52.1% in the PD-L1–positive population. CONCLUSION To our knowledge, this is the first clinical trial to show responsiveness of anaplastic thyroid carcinoma to PD-1 blockade.

Authors 22

  1. Universitat Autònoma de Barcelona · Vall d'Hebron Hospital Universitari · Vall d'Hebron Institute of Oncology

    Affiliation as printed

    Vall d’Hebron University Hospital, Vall d’Hebron Institute of Oncology, Universitat Autònoma de Barcelona, Barcelona, Spain

  2. Harvard University · Massachusetts General Hospital

    Affiliation as printed

    Massachusetts General Hospital and Harvard Medical School, Boston, MA

    Massachusetts General Hospital and Harvard Medical School , Boston, MA ,

  3. Jena University Hospital

    Affiliation as printed

    Abteilung Hämatologie/Onkologie, Klinik für Innere Medizin II, Universitätsklinikum Jena, Jena, Germany

  4. Hospital Universitario 12 De Octubre

    Affiliation as printed

    University Hospital 12 de Octubre, Madrid, Spain

  5. National Taiwan University Hospital

    Affiliation as printed

    National Taiwan University Hospital, Taipei, Taiwan

    National Taiwan University Hospital, Taipei, Taiwan#TAB#

  6. Poznan University of Medical Sciences

    Affiliation as printed

    Poznań University of Medical Sciences, Poznań, Poland

    Poznan University of medical Sciences, Poznan, Poland

  7. University Health Network · Princess Margaret Cancer Centre

    Affiliation as printed

    Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada

    Princess Margaret Cancer Centre, University Health Network , Toronto, Ontario, Canada

  8. Institut universitaire du cancer de Toulouse Oncopole

    Affiliation as printed

    IUCT Oncopole, Toulouse, France

  9. Leiden University Medical Center

    Affiliation as printed

    Leiden University Medical Center, Leiden, the Netherlands

  10. Istituto Nazionale Tumori IRCCS "Fondazione G. Pascale"

    Affiliation as printed

    Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy

  11. IRCCS Ospedale San Raffaele

    Affiliation as printed

    San Raffaele Hospital, Milan, Italy

  12. Essen University Hospital

    Affiliation as printed

    University Hospital Essen, Essen, Germany

  13. University Hospital Ulm

    Affiliation as printed

    University Hospital Ulm, Ulm, Germany

  14. Johns Hopkins University · Johns Hopkins Medicine · Sidney Kimmel Comprehensive Cancer Center

    Affiliation as printed

    Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD

  15. University Clinical Centre

    Affiliation as printed

    Uniwersyteckie Centrum Kliniczne, Gdansk, Poland

  16. Humanitas University · IRCCS Humanitas Research Hospital

    Affiliation as printed

    IRCCS Humanitas Clinical and Research Center–Humanitas University, Rozzano, Italy

  17. Harvard University · Massachusetts General Hospital

    Affiliation as printed

    Massachusetts General Hospital and Harvard Medical School, Boston, MA

    Massachusetts General Hospital and Harvard Medical School , Boston, MA ,

  18. Affiliation as printed

    Novartis Institutes for BioMedical Research, Cambridge, MA

  19. Affiliation as printed

    Novartis Pharmaceuticals, East Hanover, NJ

  20. Novartis Institutes for BioMedical Research

    Affiliation as printed

    Novartis Institutes for BioMedical Research, Basel, Switzerland

  21. Affiliation as printed

    Novartis Institutes for BioMedical Research, Cambridge, MA

  22. Oregon Health & Science University

    Affiliation as printed

    Oregon Health & Science University, Portland, OR

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References 26