Trial Outcomes & Findings for NB-001 in Children and Adolescents With 22q11 Deletion Syndrome (NCT NCT05290493)

NB-001 in Children and Adolescents With 22q11 Deletion Syndrome

Type, frequency, severity, and causality of treatment-emergent adverse events (TEAEs),treatment-emergent serious adverse events (TESAEs), clinically significant changes from baseline in laboratory tests, electrocardiograms (ECGs), vital signs, and physical examination findings during treatment with NB-001.

The CGI-I scale is a 7-point scale that measures how much a patient's condition has improved or worsened over time. The CGI-I is scored on a scale of 1-7, with a score of 1 indicating "Very much improved" and 7 indicating "Very much worse". The least squares mean of the score on the CGI-I scale at the end of the 6-week treatment period is reported here.

CGI-S: 7-point scale that measures a participant's overall disease severity. A 1-point improvement in the CGI-S scale is an appropriate meaningful change threshold. Possible scores are: 1 = Normal, not at all impaired; 2 = Borderline impaired; 3 = Mildly impaired; 4 = Moderately impaired; 5 = Markedly impaired; 6 = Severely impaired; 7 = Among the most extremely impaired patients.

The PARS is a clinician-rated instrument for assessing severity of anxiety symptoms associated with common anxiety disorders. The first section is a 50-item symptom checklist and the second section is comprised of 7 severity/impairment items reflecting the severity/impairment of all symptoms noted in the first section. The PARS total severity score is calculated as the sum of items 2, 3, 5, 6, and 7 from the second section of the instrument. Each item is rated on a 6-point Likert scale from 0-5 with the higher scores indicating more severe anxiety. The total severity score can range from a minimum value of 0 to a maximum value of 25. Higher scores indicate more severe anxiety. Additionally, per protocol, at baseline, a score of \>12 on the PARS 5-item total severity score (items 2+3+5+6+7) is indicative of psychiatric symptoms in the clinical range for anxiety disorder, and a score of 10 or 11 is indicative of psychiatric symptoms in the subclinical range for anxiety disorder.

The ADHD-RS-5 is a parent/guardian reported scale to measure behaviors of children and adolescents with ADHD. It consists of 18 items grouped into two subscales: inattention (items 1-9) and hyperactivity (items 10-18). Each item is scored on a scale ranging from 0 (reflecting no symptoms) to 3 (reflecting severe symptoms). The total inattention score (reported here) can range from a minimum value of 0 to a maximum value of 27. Higher total inattention scores reflect more severe symptoms.

The ADHD-RS-5 is a parent/guardian reported scale to measure behaviors of children and adolescents with ADHD. It consists of 18 items grouped into two subscales: inattention (items 1-9) and hyperactivity (items 10-18). Each item is scored on a scale ranging from 0 (reflecting no symptoms) to 3 (reflecting severe symptoms). The total hyperactivity score (reported here) can range from a minimum value of 0 to a maximum value of 27. Higher total hyperactivity scores reflect more severe symptoms.

The SRS-2 identifies the presence and severity of social impairment within the autism spectrum. It is a 65-item, parent-completed questionnaire which incorporates 5 content areas of social deficits. The sum of all items is calculated to provide a maximum total score of 195. However, a total derived T-score is calculated centrally and reported for this trial. A higher T-score indicates more severe impairment. The population mean T-score is 50, with a standard deviation of 10. Thus, a T-score considered within the normal range is 59 or below (i.e., minimum T-score value), and a T-score indicating a severe range is 76 or above (i.e., maximum T-score value). Scores between 60-75 fall into the mild to moderate range.

Optional qualitative exit interviews were conducted with clinicians and parent/guardian(s) of subjects who completed the protocol.