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Patient preferences and experiences regarding thrombopoietin-receptor agonists for immune thrombocytopenia in The Netherlands (TRAPeze Netherlands study)
Identify patient experience and preference towards thrombopoietin-receptor agonists (TPO-RAs) in treatment of immune thrombocytopenia (ITP) in the Netherlands. The Thrombopoietin-Receptor Agonist Patient experience (TRAPeze) survey used a discrete choice experiment (DCE) to elicit patient preferences and a patient burden survey (PBS) to evaluate the clinical and social impact of ITP. TRAPeze collected responses from 6th October to 19th November 2021. Seventy-six respondents completed the DCE: treatment preference appeared to be driven by method of administration (odds ratio [OR] 4.33; 95% confidence interval [CI] 2.88β6.52), frequency of dosing (OR 2.33; 95% CI 1.86β2.92) and drugβfood interactions (OR 1.91; 95% CI 1.54β2.37). Respondents preferred therapies delivered orally over subcutaneous injection (OR 4.22; 95% CI 2.76β6.46), dosed once weekly over once daily (OR 2.37; 95% CI 1.58β3.54) and without food restrictions over with restrictions (OR 1.90; 95% CI 1.52β2.38). Sixty-nine respondents completed the DCE and PBS (mean [range] age 53 [19β83] years, 65% female). Seven incomplete PBS responses were excluded from analysis. Respondents were currently, or most recently, receiving eltrombopag (nβ=β43) or romiplostim (nβ=β26), of which 30% (nβ=β21/69) had previously received another TPO-RA. Loss (29%, nβ=β6/21) and lack (29%, nβ=β6/21) of response were the most common reasons for switching TPO-RA. Only 28% (nβ=β18/65) of respondents felt their TPO-RA increased energy levels. Patients preferred therapies delivered orally, dosed less frequently and without food restrictions. QoL of ITP patients on TPO-RAs can be improved; the burden analyses presented can inform future efforts towards this.</p