Real-life Assessment of Brexpiprazole (Rexulti) in Schizophrenia and in Depressive Disorders

Summary

Not only being the mainstay of treatment for schizophrenia spectrum psychotic disorders, antipsychotics, especially the second-generation antipsychotics (SGAs) have also been recommended as augmenting agents for treating depression. Dopaminergic agents, including both dopamine D2/D3 antagonists and dopamine partial D2 agonists, have been effective for treating psychosis and schizophrenia. Amongst all SGAs, those with partial D2 agonistic property are generally acknowledged to have better side-effect profiles with lower incidence of extrapyramidal side-effects, prolactin increase, weight gain, QTc prolongation, and metabolic syndrome, as well as more efficacious in alleviating depressive symptoms. Up-to-date, three SGAs, namely aripiprazole, brexpiprazole and cariprazine, are known to possess such partial D2 agonism. ReSD-HK study is part of the ReSD Asian Study aiming to carefully evaluate a cohort of patients prescribed with brexpiprazole on its efficacy and tolerability as treatment for schizophrenia and/or depression in a real-life clinical setting.

Eligibility

Inclusion Criteria:

* Age: 18- 65 years old at the time of enrollment
* Able to read and communicate in English and/or Chinese
* Able to give informed consent
* Has been diagnosed according to Diagnostic and Statistical Manual of Mental Disorders, 5th edition (DSM-5), or International Statistical Classification of Diseases and Related Health Problems 10th revision (ICD-10) to have either Psychotic Disorders (F10-F19.5, F20-23, F25, F32-F33)
* is receiving brexpiprazole as treatment for less than 4 weeks at the time of recruitment

Exclusion Criteria:

* Age \<18 years old
* Unable to read English or Chinese
* Unable to give informed consent
* Had been diagnosed to have Intellectual Disabilities (DSM-5) or Mental Retardation (ICD-10 F70-73)

Conditions2

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