Real-life efficacy of immunotherapy for Sézary syndrome: a multicenter observational cohort study

  • Alizée Bozonnat
  • , Marie Beylot-Barry
  • , Olivier Dereure
  • , Michel D'Incan
  • , Gaëlle Quereux
  • , Emmanuella Guenova
  • , Marie Perier-Muzet
  • , Stephane Dalle
  • , Florent Grange
  • , Manuelle-Anne Viguier
  • , Caroline Ram-Wolff
  • , Laurence Feldmeyer
  • , Helmut Beltraminelli
  • , Nathalie Bonnet
  • , Florent Amatore
  • , Eve Maubec
  • , Nathalie Franck
  • , Laurent Machet
  • , François Chasset
  • , Florence Brunet-Possenti
  • Jean-David Bouaziz, Maxime Battistella, Marie Donzel, Anne Pham-Ledard, Claudia Bejar, Hélène Moins-Teisserenc, Samia Mourah, Philippe Saiag, Ewa Hainaut, Catherine Michel, Guido Bens, Henri Adamski, François Aubin, Serge Boulinguez, Pascal Joly, Billal Tedbirt, Isabelle Templier, Laura Troin, Henri Montaudié, Saskia Ingen-Housz-Oro, Sarah Faiz, Laurent Mortier, Gabor Dobos, Martine Bagot, Matthieu Resche-Rigon, Claire Montlahuc, Arnaud Serret-Larmande, Adèle de Masson, Cutaneous Lymphomas French Study Group

Research output: Contribution to journalArticlepeer-review

Abstract

BACKGROUND: Sézary syndrome is an extremely rare and fatal cutaneous T-cell lymphoma (CTCL). Mogamulizumab, an anti-CCR4 monoclonal antibody, has recently been associated with increased progression-free survival in a randomized clinical trial in CTCL. We aimed to evaluate OS and prognostic factors in Sézary syndrome, including treatment with mogamulizumab, in a real-life setting.

METHODS: Data from patients with Sézary (ISCL/EORTC stage IV) and pre-Sézary (stage IIIB) syndrome diagnosed from 2000 to 2020 were obtained from 24 centers in Europe. Age, disease stage, plasma lactate dehydrogenases levels, blood eosinophilia at diagnosis, large-cell transformation and treatment received were analyzed in a multivariable Cox proportional hazard ratio model. This study has been registered in ClinicalTrials (SURPASSe01 study: NCT05206045).

FINDINGS: Three hundred and thirty-nine patients were included (58% men, median age at diagnosis of 70 years, Q1-Q3, 61-79): 33 pre-Sézary (9.7% of 339), 296 Sézary syndrome (87.3%), of whom 10 (2.9%) had large-cell transformation. One hundred and ten patients received mogamulizumab. Median follow-up was 58 months (95% confidence interval [CI], 53-68). OS was 46.5% (95% CI, 40.6%-53.3%) at 5 years. Multivariable analysis showed that age ≥ 80 versus <50 (HR: 4.9, 95% CI, 2.1-11.2, p = 0.001), and large-cell transformation (HR: 2.8, 95% CI, 1.6-5.1, p = 0.001) were independent and significant factors associated with reduced OS. Mogamulizumab treatment was significantly associated with decreased mortality (HR: 0.34, 95% CI, 0.15-0.80, p = 0.013).

INTERPRETATION: Treatment with mogamulizumab was significantly and independently associated with decreased mortality in Sézary syndrome.

FUNDING: French Society of Dermatology, Swiss National Science Foundation (IZLIZ3_200253/1) and SKINTEGRITY.CH collaborative research program.

Original languageEnglish
Article number102679
Pages (from-to)102679
JournalEClinicalMedicine
Volume73
DOIs
Publication statusPublished - Jul 2024
Externally publishedYes

Fields of science

  • 302 Clinical Medicine

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