Objective: Switching to long-acting injectable (LAI) antipsychotic maintenance treatment (AMT) represents a valuable strategy for schizophrenia. In a recovery-oriented approach, patient-reported outcomes (PROs) such as perceived disability, subjective well-being, and quality of life cannot be neglected. Methods: Forty clinically stable outpatients with schizophrenia treated with oral second-generation antipsychotics were enrolled at the time of switching to the equivalent dose of LAI. 35 subjects completed this 2-year longitudinal, prospective, open-label, observational study. Patients were assessed at baseline, after 1 year, and after 2 years of LAI-AMT, using psychometric scales (Positive And Negative Syndrome Scale, PANSS; Young Mania Rating Scale, YMRS; Montgomery-Åsberg Depression Rating Scale, MADRS), PROs (Subjective Well-Being under Neuroleptics short form, SWN-K; Short Form-36 health survey, SF-36; 12-item World Health Organisation Disability Assessment Schedule, WHODAS 2.0), and caregiver-reported outcomes (12-item WHODAS 2.0). Results: No psychotic relapses were observed. Psychopathology measures (PANSS total and subscalesexcluding negative symptoms), mood symptoms (YMRS, MADRS), perceived disability (patient-and caregiver-administered WHODAS 2.0), subjective well-being (SWN-K), and quality of life (SF-36) showed a concomitant amelioration after 1 year, without further significant variations. Discussion: Switching to LAI-AMT may decrease perceived impairment, and increase subjective wellbeing and quality of life in clinically stable outpatients with schizophrenia.
HIGHLIGHTSLAI treatment may improve outcomes by reducing psychopathology levels and relapses. In a recovery-oriented approach, patient-reported outcomes cannot be neglected. LAI antipsychotics may optimise the subjective experience of treatment. Switching to LAI therapy may result in a reduction in perceived disability. There is a significant correlation between proxy-and patient-reported disability.