T46. THE EFFECT OF COMPREHENSIVE COGNITIVE REMEDIATION IN INDIVIDUALS AT ULTRA-HIGH RISK FOR PSYCHOSIS: A SINGLE-BLIND, RANDOMISED, CLINICAL TRIAL (FOCUS)

  • Birkedal Glenthoej L
  • Lise M
  • Fagerlund B
  • et al.
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Abstract

Background: Individuals at ultra‐high risk (UHR) for psychosis display significant cognitive deficits that constitute a barrier to functional recovery. Applying cognitive remediation (CR) before the onset of manifest psychosis may improve cognition and the clinical and functional prognosis of UHR individuals. Methods: This randomised, clinical trial randomly assigned 146 UHR individuals aged 18‐40 years to treatment as usual (TAU) or TAU plus cognitive remediation. The cognitive remediation consisted of 20‐weeks of neurocognitive and social cognitive remediation. Assessments were carried out at 6‐and 12‐months post baseline. Primary outcome was composite score on the Brief Assessment of Cognition in Schizophrenia (BACS) battery at 6‐months. Results: Between April 2014 and January 2017, 73 UHR individuals were assigned to TAU and 73 were assigned to TAU + cognitive remediation. Compared to the control group, cognitive remediation did not result in significant improvement on the BACS composite score at 6‐month follow‐up (b=‐0.125, 95%CI: ‐0.23 to 0.172, p=0.41). Nor did the intervention improve secondary outcomes in clinical symptoms or functioning. Exploratory analyses found emotion recognition latencies to be significantly more reduced in the intervention group than the TAU group at 6‐months follow‐up. At 12‐month follow‐up the intervention group exhibited significantly better performance on two exploratory outcomes of executive function and visual memory. The participants in the intervention group attended an average of 12 sessions out of 20. No adverse events were reported relating to the intervention. Discussion: While the brief course of treatment did not impact global cognition, symptoms and functioning measures, treatment related benefit was found in exploratory component neuro‐and social cognitive measures. Future studies should evaluate whether more personalized interventions such as the separate application of neurocognitive and social cognitive remediation may produce beneficial effect on cognition and functioning compared to treatment as usual, along with establishing the optimal number of training hours to produce cognitive and functional gains.

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Birkedal Glenthoej, L., Lise, M., Fagerlund, B., Richardt Jepsen, J., Dam Kristensen, T., Wenneberg, C., … Nordentoft, M. (2020). T46. THE EFFECT OF COMPREHENSIVE COGNITIVE REMEDIATION IN INDIVIDUALS AT ULTRA-HIGH RISK FOR PSYCHOSIS: A SINGLE-BLIND, RANDOMISED, CLINICAL TRIAL (FOCUS). Schizophrenia Bulletin, 46(Supplement_1), S249–S249. https://doi.org/10.1093/schbul/sbaa029.606

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