1. Real-world use of thrombopoietin receptor agonists for the management of immune thrombocytopenia in adult patients in the United Kingdom: Results from the TRAIT study.
- Author
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Cooper N, Scully M, Percy C, Nicolson PLR, Lowe G, Bagot CN, Thachil J, Grech H, Nokes T, Hill QA, Bradbury C, Talks K, Dutt T, Evans G, Pavord S, Wexler S, Charania A, Collington SJ, Ervin A, Ramscar N, and Provan D
- Subjects
- Humans, Middle Aged, Male, Female, Adult, United Kingdom, Retrospective Studies, Aged, Platelet Count, Treatment Outcome, Aged, 80 and over, Young Adult, Adolescent, Receptors, Thrombopoietin agonists, Recombinant Fusion Proteins therapeutic use, Recombinant Fusion Proteins adverse effects, Recombinant Fusion Proteins administration & dosage, Purpura, Thrombocytopenic, Idiopathic drug therapy, Benzoates therapeutic use, Benzoates adverse effects, Pyrazoles therapeutic use, Pyrazoles adverse effects, Thrombopoietin therapeutic use, Thrombopoietin adverse effects, Hydrazines therapeutic use, Hydrazines adverse effects, Receptors, Fc therapeutic use
- Abstract
Few studies have reported the real-world use of both romiplostim and eltrombopag in immune thrombocytopenia (ITP). TRAIT was a retrospective observational study aimed to evaluate the platelet responses and adverse effects associated with the use of these thrombopoietin receptor agonists (TPO-RAs) in adult patients with ITP in the United Kingdom. Of 267 patients (median age at diagnosis, 48 years) with ITP (primary ITP [n = 218], secondary ITP [n = 49]) included in the study, 112 (42%) received eltrombopag and 155 (58%) received romiplostim as the first prescribed TPO-RA. A platelet count ≥30 × 10
9 /L was achieved in 89% of patients with the first TPO-RA treatments, while 68% achieved a platelet count ≥100 × 109 /L. Treatment-free response (TFR; platelet count ≥30 × 109 /L, 3 months after discontinuing treatment) was achieved by 18% of the total patients. Overall, 61 patients (23%) switched TPO-RAs, most of whom achieved platelet counts ≥30 × 109 /L with the second TPO-RA (23/25 who switched from eltrombopag to romiplostim [92%]; 28/36 who switched from romiplostim to eltrombopag [78%]). TFR was associated with secondary ITP, early TPO-RA initiation after diagnosis, the presence of comorbidity and no prior splenectomy or treatment with steroids or mycophenolate mofetil. Both TPO-RAs had similar efficacy and safety profiles to those reported in clinical studies., (© 2024 The Authors. British Journal of Haematology published by British Society for Haematology and John Wiley & Sons Ltd.)- Published
- 2024
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