ABSTRACT
OBJECTIVE: To analyze clinical and therapeutic features of the transfer of patients with schizophrenia spectrum disorders from paliperidone palmitate of one-month action (PP-1M) to paliperidone of three-month action (PP-3M). MATERIAL AND METHODS: Data on the psychopharmacological therapy regimens of 677 patients with verified diagnoses of schizophrenia spectrum disorders (F20, F21, F25) treated with PP-3M drugs after PP-1M therapy were studied. RESULTS: The study showed the high efficacy of ultra-long-acting paliperidone therapy in 82.2% of patients with schizophrenia spectrum disorders. The unfavorable dynamics of the mental state in patients when transferring from the drug PP-1M to PP-3M was 14.0%, the return to therapy with PP-1M or tablet forms was 3.8%. Successful management of patients on PP-3M was not associated with sex and age, but was correlated with some clinical and therapeutic indicators. The most successful therapy with PP-3M was noted with the earlier appointment of PP-3M mainly as monotherapy, provided the previous stable condition on shorter-acting paliperidone preparations (including tablet forms). Predictors of a favorable prognosis of PP-3M therapy are also diagnostic categories such as paranoid schizophrenia, episodic type of course with increasing or stable personality changes and pronounced affective disorders in the structure of the clinical picture of the disease. CONCLUSION: The results demonstrate the high efficacy of PP-3M and its significant rehabilitation potential, which allows improving the quality of life and social functioning of patients, as well as optimizing the provision of psychiatric care to this contingent of patients, which is of particular importance in the conditions of the COVID-19 pandemic.