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KMID : 0988920180160010083
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Intestinal Research
2018 Volume.16 No. 1 p.83 ~ p.89
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Efficacy and safety of the adalimumab biosimilar Exemptia as induction therapy in moderate-to-severe ulcerative colitis
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Midha Vandana
Mahajan Ramit
Mehta Varun
Narang Vikram
Singh Arshdeep
Kaur Kirandeep
Sood Ajit
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Abstract
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Background/Aims: Data on the efficacy and safety of the adalimumab biosimilar Exemptia are limited.
Methods: Patients with moderate-to-severe active steroid-refractory ulcerative colitis (UC) treated at Dayanand Medical College and Hospital, India were offered cyclosporine A, biologicals or biosimilars, or surgery. A retrospective analysis was conducted on patients who were treated with the adalimumab biosimilar, Exemptia. These patients were administered an induction dosing schedule of 160 mg Exemptia at week 0, 80 mg at week 2, and then 40 mg every other week from week 4 to 8. The clinical response and remission were assessed at week 8 using Mayo score.
Results: A total of 29 patients (62.1% male; mean age, 34.9 ± 9.7 years) with moderate-to-severe steroid-refractory active UC (mean disease duration, 6.3±5.1 years; pancolitis in 9 patients [31.1%]; left-sided colitis in 20 patients [68.9%]) were treated with the Exemptia induction dosing schedule. The mean Mayo score at presentation was 8.2±1.4. At week 8, clinical response was observed in 7 patients (24.1%), whereas clinical remission was observed only in 1 patient (3.5%). Among the non-responders (n=21), 4 patients required colectomy, 1 died, 1 was lost to follow-up, 10 were offered fecal microbiota transplant, 3 were administered infliximab, and 2 patients were administered cyclosporine and tacrolimus, respectively. Four patients (13.8%) developed extrapulmonary tuberculosis.
Conclusions: The adalimumab biosimilar Exemptia has limited efficacy for the attainment of clinical response and remission in moderate-to-severe steroid-refractory UC, with a significant risk of acquisition or reactivation of tuberculosis in developing countries such as India.
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KEYWORD
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Adalimumab biosimilar, Exemptia, Steroid-refractory ulcerative colitis
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