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Longitudinal changes in antipsychotic dose in patients treated with long-acting injectable second-generation antipsychotics
- Source :
- International Clinical Psychopharmacology. 36:84-88
- Publication Year :
- 2020
- Publisher :
- Ovid Technologies (Wolters Kluwer Health), 2020.
-
Abstract
- Only a few studies have investigated changes in the dose of long-acting injectable second-generation antipsychotics (LAI-SGAs) over the long term in the maintenance treatment of schizophrenia. In this retrospective cohort study, we examined longitudinal changes in antipsychotic dose over a 3-year period in patients with schizophrenia who had been taking LAI-SGAs for at least 1 year. We compared the total daily chlorpromazine equivalent dose of antipsychotics at 12, 24 and 36 months with the baseline dose at 3 months after initiation of LAI-SGAs. We also performed multiple regression analysis to explore factors associated with change in total daily dose 12 months after treatment initiation. A total of 154 patients fulfilled the inclusion criteria. There was no significant difference in total daily antipsychotic dose between 3 months and 12, 24 or 36 months after treatment initiation. Total daily dose was increased in 43 (27.9%), 31 (34.8%) and 22 patients (36.7%) at 12, 24 and 36 months, respectively. Age and total antipsychotic dose at 3 months were significantly negatively associated with change in total daily dose. Antipsychotic dose was basically unchanged during long-term treatment in patients treated with LAI-SGAs in the maintenance phase, although there was an increase in some patients.
- Subjects :
- medicine.medical_specialty
medicine.medical_treatment
Injections
03 medical and health sciences
0302 clinical medicine
Internal medicine
medicine
Humans
Pharmacology (medical)
In patient
Longitudinal Studies
Chlorpromazine
Antipsychotic
Retrospective Studies
Equivalent dose
business.industry
Significant difference
Retrospective cohort study
medicine.disease
030227 psychiatry
Psychiatry and Mental health
Long acting
Schizophrenia
Delayed-Action Preparations
business
030217 neurology & neurosurgery
Antipsychotic Agents
medicine.drug
Subjects
Details
- ISSN :
- 02681315
- Volume :
- 36
- Database :
- OpenAIRE
- Journal :
- International Clinical Psychopharmacology
- Accession number :
- edsair.doi.dedup.....25772949baa4e73e2d7324668a669147