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Updated: Dec 8, 2025
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Dynamic Imaging of Chimeric Antigen Receptor T Cells with [18F]Tetrafluoroborate Positron Emission Tomography/Computed Tomography
Published on: February 17, 2022
Tocilizumab in treatment-naïve patients with Takayasu arteritis: TOCITAKA French prospective multicenter open-labeled
Arsene Mekinian1, David Saadoun2,3,4, Eric Vicaut5
1Sorbonne Universités AP-HP, Hôpital Saint Antoine, service de médecine interne et Inflammation-Immunopathology-Biotherapy Department (DMU 3iD), Faculté de Médecine Sorbonne Université, F-75012, Paris, France. arsene.mekinian@aphp.fr.
Objectives:
To assess long-term efficacy of tocilizumab in treatment-naive patients with Takayasu arteritis (TAK).
Methods:
Prospective open-labeled trial in naïve patients with TAK who received steroids at the dose of 0.7 mg/kg/day and 7 infusions of 8 mg/kg/month of tocilizumab. The primary endpoint was the number of patients who discontinued steroids after 7 infusions of tocilizumab. Secondary endpoints included disease activity and the number of relapses during 18-month follow-up.
Results:
Thirteen patients with TAK were included, with a median age of 32 years [19-45] and 12 (92%) females. Six (54%) patients met the primary end-point. A significant decrease of disease activity was observed after 6 months of tocilizumab therapy: decrease of median NIH scale (3 [3, 4] at baseline, versus 1 [0-2] after 6 months; p < 0.001), ITAS-2010 score (5 [2-7] versus 3 [0-8]; p = 0.002), and ITAS-A score (7 [4-10] versus 4 [1-15]; p = 0.0001)]. During the 12-month follow-up after tocilizumab discontinuation, a relapse occurred among 5 patients (45%) out of 11 in which achieved remission after 6 months of tocilizumab.
Conclusion:
Tocilizumab seems an effective steroid sparing therapy in TAK, but maintenance therapy is necessary.
Trial Registration:
ClinicalTrials.gov NCT02101333 . Registered on 02 April 2014.
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