1. An international research agenda for clozapine-resistant schizophrenia
- Author
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Luykx, Jurjen J, Gonzalez-Diaz, Jairo M, Guu, Ta-Wei, van der Horst, Marte Z, van Dellen, Edwin, Boks, Marco P, Guloksuz, Sinan, DeLisi, Lynn E, Sommer, Iris E, Cummins, Russel, Shiers, David, Lee, Jimmy, Every-Palmer, Susanna, Mhalla, Ahmed, Chadly, Zohra, Chan, Sherry K W, Cotes, Robert O, Takahashi, Shun, Benros, Michael E, Wagner, Elias, Correll, Christoph U, Hasan, Alkomiet, Siskind, Dan, Endres, Dominique, MacCabe, James, and Tiihonen, Jari
- Abstract
Treatment-resistant symptoms occur in about a third of patients with schizophrenia and are associated with a substantial reduction in their quality of life. The development of new treatment options for clozapine-resistant schizophrenia constitutes a crucial, unmet need in psychiatry. Additionally, an overview of past and possible future research avenues to optimise the early detection, diagnosis, and management of clozapine-resistant schizophrenia is unavailable. In this Health Policy, we discuss the ongoing challenges associated with clozapine-resistant schizophrenia faced by patients and health-care providers worldwide to improve the understanding of this condition. We then revisit several clozapine guidelines, the diagnostic tests and treatment options for clozapine-resistant schizophrenia, and currently applied research approaches in clozapine-resistant schizophrenia. We also suggest methodologies and targets for future research, divided into innovative nosology-oriented field trials (eg, examining dimensional symptom staging), translational approaches (eg, genetics), epidemiological research (eg, real-world studies), and interventional studies (eg, non-traditional trial designs incorporating lived experiences and caregivers' perspectives). Finally, we note that low-income and middle-income countries are under-represented in studies on clozapine-resistant schizophrenia and propose an agenda to guide multinational research on the cause and treatment of clozapine-resistant schizophrenia. We hope that this research agenda will empower better global representation of patients living with clozapine-resistant schizophrenia and ultimately improve their functional outcomes and quality of life.
- Published
- 2023
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