Background: TV46000 is a long-acting subcutaneous antipsychotic (LASCA) formulation of risperidone approved for the treatment of schizophrenia in adults.
Methods: The RISE study (NCT03503318) compared TV-46000 once monthly (q1m) and once every 2 months (q2m) with placebo (1:1:1) in patients with schizophrenia who underwent stabilization on oral risperidone. The SHINE study (NCT03893825) evaluated the long-term safety, tolerability, and effectiveness of TV-46000 in patients who completed RISE without relapse (rollover; placebo rollover randomized [1:1] to q1m or q2m; TV-46000 rollover continued assigned treatment) or who were newly recruited (de novo; randomized [1:1] to q1m or q2m after oral stabilization). Patient-centered outcomes included the Schizophrenia Quality of Life Scale (SQLS), the 5-Level EuroQoL 5-Dimensions Questionnaire (EQ-5D-5L), the Personal and Social Performance Scale (PSP), and the Drug Attitudes Inventory 10-item version (DAI-10).
Results: In RISE, SQLS least-squares mean changes (SE) improved to last assessment (LA) for TV-46000 q1m (-4.15 [1.03]) and q2m (-3.28 [1.06]) but worsened for placebo (1.75 [1.07]; P<0.001 for both). PSP, EQ5D-5L, and DAI-10 showed similar trends. In SHINE, SQLS decreased (improved) at LA for both TV-46000 q1m (-0.43 [0.98]) and q2m (-2.16 [0.98]); reductions were observed in the de novo (q2m only) and placebo rollover (q1m and q2m) cohorts, but not for the TV46000 rollover cohort. Results for PSP, EQ5D-5L, and DAI-10 were consistent with those reported in the RISE study.
Conclusion: Improvements in patient-centered outcomes were observed across cohorts, with the largest improvements observed for patients who began TV-46000 during SHINE (ie, de novo and placebo rollover cohorts), while gains made during RISE were minimally improved or maintained in the TV-46000 rollover cohort, indicating the benefit of uninterrupted TV-46000 treatment. These data support the effectiveness of TV-46000 to improve patient-centered outcomes in patients with schizophrenia.
Keywords: long-acting injectable; patient-centered outcomes; risperidone; schizophrenia.
RISE and SHINE were clinical studies where patients with schizophrenia received TV-46000. TV-46000 is injected under the skin once monthly or once every 2 months to treat schizophrenia in adults. In RISE, patients took pills for the first 3 months, and then received injections under the skin. Some patients received inactive (placebo) injections. Comparing results among groups showed the effectiveness and side effects of TV-46000. Patients who completed RISE could continue into SHINE. SHINE included patients who had not been part of RISE as well. All patients received TV-46000 in SHINE to see if results were the same long term. This report summarizes the results of patient-centered outcomes. These included measures of quality of life and attitudes toward the medicine. In RISE, quality of life and attitudes toward the medicine improved with TV-46000, but worsened with placebo. In SHINE, the patient-centered outcomes also improved. The largest improvements were for patients who began taking TV-46000 during SHINE. This analysis showed that there is a benefit in taking TV-46000 for longer times without breaks. It also showed that TV-46000 improves quality of life and attitudes toward the medicine.
© 2024 Citrome et al.