Press release
Anavex Life Sciences Reports Publication in Medical Journal Signifying Continued Commitment for Improvement of the Rett Syndrome Caregiver Outcome Measure RSBQ
NEW YORK, June 12, 2023 (GLOBE NEWSWIRE) -- Anavex Life Sciences Corp. (“Anavex” or the “Company”) (Nasdaq: AVXL), a clinical-stage biopharmaceutical company

About this update from Anavex Life Sciences Corp.
[{"type":"text","content":"NEW YORK, June 12, 2023 (GLOBE NEWSWIRE) -- Anavex Life Sciences Corp. (“Anavex” or the “Company”) (Nasdaq: AVXL), a clinical-stage biopharmaceutical company developing differentiated therapeutics for the treatment of neurodegenerative and neurodevelopmental disorders including Alzheimer’s disease, Parkinson’s disease, Rett syndrome and other central nervous system (CNS) disorders, today announced the publication of a relevant new peer-reviewed study in the American Journal on Intellectual and Developmental Disabilities, entitled ‘Rett Syndrome Behaviour Questionnaire in Children and Adults With Rett Syndrome: Psychometric Characterization and Revised Factor Structure’.1 The study reports distribution of scores and other statistical features of the Rett Syndrome Behaviour Questionnaire (RSBQ) in more than 600 children and adults with Rett syndrome. It also re-examines the structure of the questionnaire, specifically the grouping of questions (items) into different subscales. This evaluation led authors to propose some changes to the organization of the questions (i.e., revised subscales). The study, which represents the largest ever analysis of the RSBQ and the first report of the instrument in adults with Rett Syndrome, was the result of an international collaboration including anonymized databases from the United States, Australia, United Kingdom, and Denmark. The ultimate goal of the project was to provide reference values and other metrics of the RSBQ for its clinical application and implementation in research studies. The study was partially funded by a grant from the International Rett Syndrome Foundation (IRSF). All analyses performed in the study are available to the community through a website hosted by IRSF. The RSBQ was developed by a British team of clinicians and researchers to better delineate behavioral problems in children with Rett syndrome. Over the course of the following two decades, the use of the RSBQ has been expanded to observational studies in adults with Rett syndrome and efficacy assessments. The RSBQ’s implementation as global outcome measures in FDA-regulated clinical trials is the result of its comprehensive nature since the questionnaire includes not only behaviors but also behavior-related symptoms. Indeed, most regulated trials include as co-primary efficacy endpoints the RSBQ, as a caregiver mea...