PMID- 33593473 OWN - NLM STAT- Publisher LR - 20240222 IS - 1469-8978 (Electronic) IS - 0033-2917 (Linking) DP - 2021 Feb 17 TI - Individualized risk components guiding antipsychotic delivery in patients with a clinical high risk of psychosis: application of a risk calculator. PG - 1-10 LID - 10.1017/S0033291721000064 [doi] AB - BACKGROUND: Antipsychotics are widely used for treating patients with psychosis, and target threshold psychotic symptoms. Individuals at clinical high risk (CHR) for psychosis are characterized by subthreshold psychotic symptoms. It is currently unclear who might benefit from antipsychotic treatment. Our objective was to apply a risk calculator (RC) to identify people that would benefit from antipsychotics. METHODS: Drawing on 400 CHR individuals recruited between 2011 and 2016, 208 individuals who received antipsychotic treatment were included. Clinical and cognitive variables were entered into an individualized RC for psychosis; personal risk was estimated and 4 risk components (negative symptoms-RC-NS, general function-RC-GF, cognitive performance-RC-CP, and positive symptoms-RC-PS) were constructed. The sample was further stratified according to the risk level. Higher risk was defined based on the estimated risk score (20% or higher). RESULTS: In total, 208 CHR individuals received daily antipsychotic treatment of an olanzapine-equivalent dose of 8.7 mg with a mean administration duration of 58.4 weeks. Of these, 39 (18.8%) developed psychosis within 2 years. A new index of factors ratio (FR), which was derived from the ratio of RC-PS plus RC-GF to RC-NS plus RC-CP, was generated. In the higher-risk group, as FR increased, the conversion rate decreased. A small group (15%) of CHR individuals at higher-risk and an FR >1 benefitted from the antipsychotic treatment. CONCLUSIONS: Through applying a personal risk assessment, the administration of antipsychotics should be limited to CHR individuals with predominantly positive symptoms and related function decline. A strict antipsychotic prescription strategy should be introduced to reduce inappropriate use. FAU - Zhang, TianHong AU - Zhang T AUID- ORCID: 0000-0002-5379-7119 AD - Shanghai Mental Health Center, Shanghai Jiaotong University School of Medicine, Shanghai Key Laboratory of Psychotic Disorders, Shanghai200030, PR China. FAU - Xu, LiHua AU - Xu L AD - Shanghai Mental Health Center, Shanghai Jiaotong University School of Medicine, Shanghai Key Laboratory of Psychotic Disorders, Shanghai200030, PR China. FAU - Li, HuiJun AU - Li H AD - Department of Psychology, Florida A & M University, Tallahassee, Florida32307, USA. FAU - Cui, HuiRu AU - Cui H AD - Shanghai Mental Health Center, Shanghai Jiaotong University School of Medicine, Shanghai Key Laboratory of Psychotic Disorders, Shanghai200030, PR China. FAU - Tang, YingYing AU - Tang Y AD - Shanghai Mental Health Center, Shanghai Jiaotong University School of Medicine, Shanghai Key Laboratory of Psychotic Disorders, Shanghai200030, PR China. FAU - Wei, YanYan AU - Wei Y AD - Shanghai Mental Health Center, Shanghai Jiaotong University School of Medicine, Shanghai Key Laboratory of Psychotic Disorders, Shanghai200030, PR China. FAU - Tang, XiaoChen AU - Tang X AD - Shanghai Mental Health Center, Shanghai Jiaotong University School of Medicine, Shanghai Key Laboratory of Psychotic Disorders, Shanghai200030, PR China. FAU - Hu, YeGang AU - Hu Y AD - Shanghai Mental Health Center, Shanghai Jiaotong University School of Medicine, Shanghai Key Laboratory of Psychotic Disorders, Shanghai200030, PR China. FAU - Hui, Li AU - Hui L AD - Institute of Mental Health, The Affiliated Guangji Hospital of Soochow University, Soochow University, Suzhou215137, Jiangsu, PR China. FAU - Li, ChunBo AU - Li C AD - Shanghai Mental Health Center, Shanghai Jiaotong University School of Medicine, Shanghai Key Laboratory of Psychotic Disorders, Shanghai200030, PR China. FAU - Niznikiewicz, Margaret A AU - Niznikiewicz MA AD - Harvard Medical School Department of Psychiatry, Veteran's Administration Medical Center, Boston, MA02130, USA. FAU - Shenton, Martha E AU - Shenton ME AD - Brigham and Women's Hospital, Departments of Psychiatry and Radiology, and Harvard Medical School, and VA Boston Healthcare System, Boston, MA, USA. FAU - Keshavan, Matcheri S AU - Keshavan MS AD - Harvard Medical School Department of Psychiatry, Veteran's Administration Medical Center, Boston, MA02130, USA. FAU - Stone, William S AU - Stone WS AD - Harvard Medical School Department of Psychiatry, Beth Israel Deaconess Medical Center, 75 Fenwood Rd, Boston, MA02115, USA. FAU - Wang, JiJun AU - Wang J AD - Institute of Psychology and Behavioral Science, Shanghai Jiao Tong University, Shanghai, PR China. LA - eng PT - Journal Article DEP - 20210217 PL - England TA - Psychol Med JT - Psychological medicine JID - 1254142 SB - IM OTO - NOTNLM OT - Medication OT - outcome OT - prodromal psychosis OT - transition OT - ultra-high risk EDAT- 2021/02/18 06:00 MHDA- 2021/02/18 06:00 CRDT- 2021/02/17 05:39 PHST- 2021/02/17 05:39 [entrez] PHST- 2021/02/18 06:00 [pubmed] PHST- 2021/02/18 06:00 [medline] AID - S0033291721000064 [pii] AID - 10.1017/S0033291721000064 [doi] PST - aheadofprint SO - Psychol Med. 2021 Feb 17:1-10. doi: 10.1017/S0033291721000064.