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Sulforaphane for the Treatment of Young Men With Autism Spectrum Disorder

A Phase II, Randomized, Double-blind, Placebo-controlled Study of Myrosinase-enriched Glucoraphanin, a Sulforaphane Precursor System, in Autism Spectrum Disorder

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02909959
Enrollment
48
Registered
2016-09-21
Start date
2017-03-01
Completion date
2019-05-30
Last updated
2020-06-04

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Autism Spectrum Disorder, Autistic Disorder, Childhood Developmental Disorders, Pervasive, Neurodevelopmental Disorder

Keywords

sulforaphane, glucoraphanin, physiologic effects of drugs

Brief summary

The aim of this randomized controlled trial is to determine if a nutritional supplement containing broccoli sprout and seed extracts, a rich source of sulforaphane, is effective in reducing core symptoms of autism spectrum disorder (ASD). The study will also explore the safety and tolerability of a sulforaphane supplement in young men with ASD, as well as its effects on challenging neuropsychiatric symptoms that are commonly associated with ASD, such as hyperactivity, irritability, and repetitive movements.

Detailed description

Autism spectrum disorder (ASD) is a neurodevelopmental disorder affecting 1 in 68 children, including 1 in 42 boys, characterized by marked social communication impairment and restricted, repetitive behaviors and interests. Evidence-based pharmacological treatments available for the treatment of the defining symptoms of ASD are currently lacking. While the etiology of ASD is not fully understood, the pathogenesis is hypothesized to involve cellular dysfunction, including increased oxidative stress, aberrant neuroinflammation, and reduced mitochondrial capacity, leading to synaptic dysfunction in at least a subset of individuals. Sulforaphane is a powerful upregulator of antioxidant response elements and heat shock proteins, which may lead to improved redox capacity, decreased inflammation, and improved mitochondrial functioning in individuals with ASD. A trial by Singh and colleagues (2014) provided preliminary evidence suggesting that sulforaphane derived from broccoli sprout extract can have beneficial effects for improving symptoms of autism. In this study, young men ages 13-30 years old with moderate to severe autism spectrum disorder will be randomly assigned to receive either a sulforaphane supplement or placebo for a 12 week treatment treatment period, followed by a 4 week blinded discontinuation phase. The uncoated tablets each contain 125 mg broccoli seed extract and 50 mg broccoli sprout extract, corresponding to approximately 15 µmol sulforaphane per tablet. The dose will vary from 3-8 tablets daily depending upon the participant's weight. Matched placebo tablets contain only inert ingredients A serum sample will be collected prior to starting treatment and at the end of the treatment phase to quantify sulforaphane metabolites. Clinical response will be assessed through clinician- and caregiver-rated measures of autism symptoms (Social Responsiveness Scale-2; Repetitive Behavior Scale- Revised), challenging symptoms commonly observed in individuals with developmental disabilities (Aberrant Behavior Checklist), and global severity of symptoms and improvement (Clinical Global Impression Scale). A blood sample will be collected at baseline and at the end of the treatment phase to check safety labs, and a saliva sample will be collected at baseline for a future study of genetic biomarkers associated with treatment response.

Interventions

DRUGSulforaphane

The investigational medicinal product is an uncoated tablet containing both glucoraphanin and myrosinase, the enzyme that converts glucoraphanin to sulforaphane in vivo. Participants in this arm will take 3-8 tablets by mouth once daily (dose depending upon weight) for 12 weeks.

DRUGPlacebo

Placebo tablets are uncoated and matched in appearance to the investigational medicinal product, containing inert components. Participants in this arm will take 3-8 tablets by mouth once daily (dose depending upon weight) for 12 weeks.

Sponsors

North Carolina Translational and Clinical Sciences Institute
CollaboratorOTHER
University of North Carolina, Chapel Hill
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
MALE
Age
13 Years to 30 Years
Healthy volunteers
No

Inclusion criteria

* Males between ages 13-30 (inclusive) at the time of the consent * Primary diagnosis of Autism Spectrum Disorder (ASD), confirmed by Diagnostic and Statistical Manual-5 (DSM-5) criteria and meeting the autism cut-off score of 9 or greater on the Autism Diagnostic Observation Schedule-2 (ADOS-2) * Participant is capable of giving written informed consent or has a legally authorized representative (LAR) with sufficient capacity to provide written informed consent on the participant's behalf. * Participant has a reliable informant (parent or caregiver) who has sufficient past and current knowledge of the subject and will oversee the administration of study medication and accompany the subject to each study visit. * Participant and caregiver have reliable means of transportation to attend study visits.

Exclusion criteria

* Chronic medical illness that is not stable or would pose a risk to the participant if he participates in the trial * History of clinical seizures within the 12 months preceding study enrollment * Known genetic disorder that is presumed to be the cause of autism spectrum disorder (eg., Fragile x syndrome, tuberous sclerosis) * Changes to psychopharmacological medications (e.g., stimulants, antidepressants, anxiolytics, antipsychotics) in the 4 weeks preceding study enrollment * Significant changes to non-pharmacological treatments for ASD in the 4 weeks preceding study enrollment * Chronic treatment with anti-inflammatory agents (e.g., ibuprofen, NSAIDs, corticosteroids) * Clinically significant laboratory abnormalities at Screening visit (e.g., AST/ALT\> two times the upper normal limits; serum creatinine \> 1.2 mg/dl, TSH outside normal limits) * Clinically significant findings on physical examination that investigator determines could increase risk of harm from participating in the study * Participated in another clinical interventional trial or received an investigational product in the 30 days preceding study enrollment * Previous therapeutic trial of sulforaphane or participation in a clinical trial in which sulforaphane was the investigational agent

Design outcomes

Primary

MeasureTime frameDescription
Social Responsiveness Scale-2 (SRS-2) Total Score at BaselineBaselineThe Social Responsiveness Scale-2 (SRS-2) is a 65-item caregiver report that includes 5 subscales covering core symptom domains of ASD (Social Awareness, Social Cognition, Social Communication, Social Motivation, and Restricted Interests/ Repetitive Behaviors). The SRS-2 provides a T-score that is scaled such that the mean is 50 and the SD is 10. Higher scores indicate a higher presence and severity of autistic social impairment. A T-score of 76 or higher is considered severe. T-scores between 66 and 75 are considered as moderate. T-scores between 60 and 65 are considered mild. A T-score below 60 is considered typical. The theoretical range of a T-score is 10 to 90. The actual range of the SRS-2 in this study is 45 to 90.
Social Responsiveness Scale-2 (SRS-2) Total Score at Week 4Week 4The Social Responsiveness Scale-2 (SRS-2) is a 65-item caregiver report that includes 5 subscales covering core symptom domains of ASD (Social Awareness, Social Cognition, Social Communication, Social Motivation, and Restricted Interests/ Repetitive Behaviors). The SRS-2 provides a T-score that is scaled such that the mean is 50 and the SD is 10. Higher scores indicate a higher presence and severity of autistic social impairment. A T-score of 76 or higher is considered severe. T-scores between 66 and 75 are considered as moderate. T-scores between 60 and 65 are considered mild. A T-score below 60 is considered typical. The theoretical range of a T-score is 10 to 90. The actual range of the SRS-2 in this study is 45 to 90.
Social Responsiveness Scale-2 (SRS-2) Total Score at Week 8Week 8The Social Responsiveness Scale-2 (SRS-2) is a 65-item caregiver report that includes 5 subscales covering core symptom domains of ASD (Social Awareness, Social Cognition, Social Communication, Social Motivation, and Restricted Interests/ Repetitive Behaviors). The SRS-2 provides a T-score that is scaled such that the mean is 50 and the SD is 10. Higher scores indicate a higher presence and severity of autistic social impairment. A T-score of 76 or higher is considered severe. T-scores between 66 and 75 are considered as moderate. T-scores between 60 and 65 are considered mild. A T-score below 60 is considered typical. The theoretical range of a T-score is 10 to 90. The actual range of the SRS-2 in this study is 45 to 90.
Social Responsiveness Scale-2 (SRS-2) Total Score at Week 12Week 12The Social Responsiveness Scale-2 (SRS-2) is a 65-item caregiver report that includes 5 subscales covering core symptom domains of ASD (Social Awareness, Social Cognition, Social Communication, Social Motivation, and Restricted Interests/ Repetitive Behaviors). The SRS-2 provides a T-score that is scaled such that the mean is 50 and the SD is 10. Higher scores indicate a higher presence and severity of autistic social impairment. A T-score of 76 or higher is considered severe. T-scores between 66 and 75 are considered as moderate. T-scores between 60 and 65 are considered mild. A T-score below 60 is considered typical. The theoretical range of a T-score is 10 to 90. The actual range of the SRS-2 in this study is 45 to 90.
Social Responsiveness Scale-2 (SRS-2) Total Score at Week 16Week 16The Social Responsiveness Scale-2 (SRS-2) is a 65-item caregiver report that includes 5 subscales covering core symptom domains of ASD (Social Awareness, Social Cognition, Social Communication, Social Motivation, and Restricted Interests/ Repetitive Behaviors). The SRS-2 provides a T-score that is scaled such that the mean is 50 and the SD is 10. Higher scores indicate a higher presence and severity of autistic social impairment. A T-score of 76 or higher is considered severe. T-scores between 66 and 75 are considered as moderate. T-scores between 60 and 65 are considered mild. A T-score below 60 is considered typical. The theoretical range of a T-score is 10 to 90. The actual range of the SRS-2 in this study is 45 to 90.

Secondary

MeasureTime frameDescription
Social Responsiveness Scale-2 (SRS-2) Subscale Score (Social Motivation)Baseline, Week 4, Week 8, Week 12, Week 16The Social Responsiveness Scale-2 (SRS-2) is a 65-item caregiver report that includes 5 subscales covering core symptom domains of ASD (Social Awareness, Social Cognition, Social Communication, Social Motivation, and Restricted Interests/ Repetitive Behaviors). The SRS-2-Social Motivation subscale measures the degree to which a participant is motivated to participate in social interactions. This subscale comprises 11 items with scores ranging from 1 to 4 for a total range of scores from 11 to 44. A higher score represents a greater motivation to participate in social interaction. Subscales are not diagnostic in nature, but they provide some insight into individual behaviors. This subscale was measured at Baseline, Week 4, Week 8, Week 12, and Week 16.
Social Responsiveness Scale-2 (SRS-2) Subscale Score (Restricted Interests/Repetitive Behaviors)Baseline, Week 4, Week 8, Week 12, Week 16The Social Responsiveness Scale-2 (SRS-2) is a 65-item caregiver report that includes 5 subscales covering core symptom domains of ASD (Social Awareness, Social Cognition, Social Communication, Social Motivation, and Restricted Interests/ Repetitive Behaviors). The SRS-2-Restricted Interests/Repetitive Behaviors subscale assesses the participant's level of stereotypy and circumscribed interests. This subscale comprises 12 items with scores ranging from 1 to 4 for a total range of scores from 12 to 48. A higher score represents a greater level of stereotypy and circumscribed interests. Subscales are not diagnostic in nature, but they provide some insight into individual behaviors. This subscale was measured at Baseline, Week 4, Week 8, Week 12, and Week 16.
Aberrant Behavior Checklist (ABC) Subscale Score (Social Withdrawal)Baseline, Week 4, Week 8, Week 12, Week 16The Aberrant Behavior Checklist (ABC) is a 58-item caregiver questionnaire developed to assess medication effects in individuals with developmental disorders and includes 5 distinct subscales of behavioral symptoms. The ABC-Social Withdrawal subscale assesses the participant's level social withdrawal. This subscale comprises 16 items with scores ranging from 0 to 3 for a total range of scores from 0 to 48. A higher score represents a greater level of social withdrawal. This subscale was measured at Baseline, Week 4, Week 8, Week 12, and Week 16.
Aberrant Behavior Checklist (ABC) Subscale Scores (Hyperactivity)Baseline, Week 4, Week 8, Week 12, Week 16The Aberrant Behavior Checklist (ABC) is a 58-item caregiver questionnaire developed to assess medication effects in individuals with developmental disorders and includes 5 distinct subscales of behavioral symptoms. The ABC-Hyperactivity subscale assesses the participant's level hyperactivity and non-compliance. This subscale comprises 16 items with scores ranging from 0 to 3 for a total range of scores from 0 to 48. A higher score represents a greater level of hyperactivity/non-compliance. This subscale was measured at Baseline, Week 4, Week 8, Week 12, and Week 16.
Aberrant Behavior Checklist (ABC) Subscale Score (Inappropriate Speech)Baseline, Week 4, Week 8, Week 12, Week 16The Aberrant Behavior Checklist (ABC) is a 58-item caregiver questionnaire developed to assess medication effects in individuals with developmental disorders and includes 5 distinct subscales of behavioral symptoms. The ABC-Inappropriate Speech subscale assesses the participant's use of inappropriate speech. This subscale comprises 4 items with scores ranging from 0 to 3 for a total range of scores from 0 to 12. A higher score represents a greater use of inappropriate speech. This subscale was measured at Baseline, Week 4, Week 8, Week 12, and Week 16.
Aberrant Behavior Checklist (ABC) Subscale Score (Stereotypy)Baseline, Week 4, Week 8, Week 12, Week 16The Aberrant Behavior Checklist (ABC) is a 58-item caregiver questionnaire developed to assess medication effects in individuals with developmental disorders and includes 5 distinct subscales of behavioral symptoms. The ABC-Stereotypy subscale assesses the participant's level of stereotypic behavior. This subscale comprises 7 items with scores ranging from 0 to 3 for a total range of scores from 0 to 21. A higher score represents a greater level of stereotypic behavior. This subscale was measured at Baseline, Week 4, Week 8, Week 12, and Week 16.
Aberrant Behavior Checklist (ABC) Subscale Score (Irritability)Baseline, Week 4, Week 8, Week 12, Week 16The Aberrant Behavior Checklist (ABC) is a 58-item caregiver questionnaire developed to assess medication effects in individuals with developmental disorders and includes 5 distinct subscales of behavioral symptoms. The ABC-Irritability subscale assesses the participant's level of irritability. This subscale comprises 15 items with scores ranging from 0 to 3 for a total range of scores from 0 to 45. A higher score represents a greater level of irritability. This subscale was measured at Baseline, Week 4, Week 8, Week 12, and Week 16.
Clinical Global Impression-Severity (CGI-S) ScoreBaseline, Week 4, Week 8, Week 12, Week 16The CGI-Severity (CGI-S) scale is a 7-point, clinician-rated scale providing an overall assessment of patient functioning relative to other patients with a similar diagnosis (1=not at all ill to 7=severely ill). A higher score indicates a higher level of severity of psychopathology. This scale was measured at Baseline, Week 4, Week 8, Week 12, and Week 16.
Number of Participants With Clinical Global Impression-Improvement (CGI-I) Score of Much Improved or Very Much ImprovedWeek 4, Week 8, Week 12, Week 16The clinician-rated CGI-Improvement (CGI-I) scale rates overall improvement or worsening of illness (ie, ASD) relative to baseline. The CGI-Improvement (CGI-I) scale rates overall improvement or worsening of illness (ie, ASD) relative to baseline. Possible scores on this scale range from 1-6 with the following assigned values: 1 = Very Much Improved; 2 = Much Improved; 3 = Minimally improved; 4 = No change; 5 = Minimally worse; 6= Much worse. A higher score indicates worsening of illness (ie, ASD), whereas a lower score indicates improvement of illness. This scale was measured at Week 4, Week 8, Week 12, and Week 16. In this measure, the number of participants in each treatment arm determined by the study physician to be Much Improved or Very Much Improved (indicative of meaningful clinical improvement) were counted.
Repetitive Behavior Scale-Revised (RBSR) Total ScoreBaseline, Week 4, Week 8, Week 12, Week 16The RBS-R is a 43-item, informant-based questionnaire designed to quantify a range of restricted, repetitive behaviors (RRB) observed in ASD. Scores for each item range from 0 = Behavior does not occur to 3 = Behavior occurs and is a severe problem. Thus the total range is 0 to 129. A higher score indicates a higher breadth of repetitive behaviors. This scale was measured at Baseline, Week 4, Week 8, Week 12, and Week 16.
Mean Hemoglobin ValueBaseline, Week 12This measure assesses the hemoglobin value as part of the complete blood count measurement. This blood count measure was assessed at Baseline and Week 12.
Mean Hematocrit ValueBaseline, Week 12This measure assesses the hematocrit value as part of the complete blood count measurement. This blood count measure was assessed at Baseline and Week 12.
Mean Corpuscular Volume ValueBaseline, Week 12This measure assesses the mean corpuscular volume value as part of the complete blood count measurement. This blood count measure was assessed at Baseline and Week 12.
Mean Corpuscular Hemoglobin ValueBaseline, Week 12This measure assesses the mean corpuscular hemoglobin value as part of the complete blood count measurement. This blood count measure was assessed at Baseline and Week 12.
Mean Corpuscular Hemoglobin Concentration ValueBaseline, Week 12This measure assesses the mean corpuscular hemoglobin concentration value as part of the complete blood count measurement. This blood count measure was assessed at Baseline and Week 12.
Mean Red Blood Cell Distribution Width ValueBaseline, Week 12This measure assesses the red blood cell distribution width value as part of the complete blood count measurement. This blood count measure was assessed at Baseline and Week 12.
Mean Platelets ValueBaseline, Week 12This measure assesses the platelets value as part of the complete blood count measurement. This blood count measure was assessed at Baseline and Week 12.
Mean Absolute Neutrophils ValueBaseline, Week 12This measure assesses the absolute neutrophils value as part of the complete blood count measurement. This blood count measure was assessed at Baseline and Week 12.
Mean Absolute Lymphocytes ValueBaseline, Week 12This measure assesses the absolute lymphocytes value as part of the complete blood count measurement. This blood count measure was assessed at Baseline and Week 12.
Mean Absolute Monocytes ValueBaseline, Week 12This measure assesses the absolute monocytes value as part of the complete blood count measurement. This blood count measure was assessed at Baseline and Week 12.
Mean Absolute Eosinophils ValueBaseline, Week 12This measure assesses the absolute eosinophils value as part of the complete blood count measurement. This blood count measure was assessed at Baseline and Week 12.
Mean Absolute Basophils ValueBaseline, Week 12This measure assesses the absolute basophils value as part of the complete blood count measurement. This blood count measure was assessed at Baseline and Week 12.
Mean Serum Chemistries (Sodium)Baseline, Week 12This measure assesses the change in the patient's sodium levels. This serum chemistry level was measured at Baseline and Week 12.
Mean Serum Chemistries (Potassium)Baseline, Week 12This measure assesses the change in the patient's potassium levels. This serum chemistry level was measured at Baseline and Week 12.
Mean Serum Chemistries (Chloride)Baseline, Week 12This measure assesses the change in the patient's chloride levels. This serum chemistry level was measured at Baseline and Week 12.
Mean Serum Chemistries (Bicarbonate)Baseline, Week 12This measure assesses the change in the patient's bicarbonate levels. This serum chemistry level was measured at Baseline and Week 12.
Mean Serum Chemistries (Blood Urea Nitrogen)Baseline, Week 12This measure assesses the change in the patient's blood urea nitrogen levels. This serum chemistry level was measured at Baseline and Week 12.
Mean Serum Chemistries (Creatinine)Baseline, Week 12This measure assesses the change in the patient's creatinine levels. This serum chemistry level was measured at Baseline and Week 12.
Mean Serum Chemistries (Glucose)Baseline, Week 12This measure assesses the change in the patient's glucose levels. This serum chemistry level was measured at Baseline and Week 12.
Mean Liver Function Tests Values (Alanine Transaminase)Baseline, Week 12This measure assesses the change in the patient's level of liver function through measure of alanine transaminase (ALT). This liver function test value was measured at Baseline and Week 12.
Mean Liver Function Tests Values (Aspartate Transaminase)Baseline, Week 12This measure assesses the change in the patient's level of liver function through measure of aspartate transaminase. This liver function test value was measured at Baseline and Week 12.
Mean Liver Function Tests Values (Total Bilirubin)Baseline, Week 12This measure assesses the change in the patient's level of liver function through measure of total bilirubin. This liver function test value was measured at Baseline and Week 12.
Mean Value of Thyroid Stimulating Hormone (TSH)Baseline, Week 12This measure assesses the change in the patient's value of thyroid stimulating hormone. This hormone value was measured at Baseline and Week 12.
Least Squares Mean of Vital Signs (Weight)Baseline, Week 4, Week 8, Week 12, Week 16This measure assesses the change in the patient's weight (lbs). This vital sign was measured at Baseline, Week 4, Week 8, Week 12, and Week 16.
Least Squares Mean of Vital Signs (Height)Baseline, Week 4, Week 8, Week 12, Week 16This measure assesses the change in the patient's height (centimeters). This vital sign was measured at Baseline, Week 4, Week 8, Week 12, and Week 16.
Least Squares Mean of Vital Signs (Blood Pressure)Baseline, Week 4, Week 8, Week 12, Week 16This measure assesses the change in the patient's systolic and diastolic blood pressure. This vital sign was measured at Baseline, Week 4, Week 8, Week 12, and Week 16.
Social Responsiveness Scale-2 (SRS-2) Subscale Score (Social Awareness)Baseline, Week 4, Week 8, Week 12, Week 16The Social Responsiveness Scale-2 (SRS-2) is a 65-item caregiver report that includes 5 subscales covering core symptom domains of ASD (Social Awareness, Social Cognition, Social Communication, Social Motivation, and Restricted Interests/ Repetitive Behaviors). The SRS-2-Social Awareness subscale measures a participant's ability to recognize social cues. This subscale comprises 8 items with scores ranging from 1 to 4 for a total range of scores from 8 to 32. A higher score represents a greater ability to recognize social cues. Subscales are not diagnostic in nature, but they provide some insight into individual behaviors. This subscale was measured at Baseline, Week 4, Week 8, Week 12, and Week 16.
Least Squares Mean of Vital Signs (Heart Rate)Baseline, Week 4, Week 8, Week 12, Week 16This measure assesses the change in the patient's heart rate (beats per minute). This vital sign was measured at Baseline, Week 4, Week 8, Week 12, and Week 16.
Social Responsiveness Scale-2 (SRS-2) Subscale Score (Social Cognition)Baseline, Week 4, Week 8, Week 12, Week 16The Social Responsiveness Scale-2 (SRS-2) is a 65-item caregiver report that includes 5 subscales covering core symptom domains of ASD (Social Awareness, Social Cognition, Social Communication, Social Motivation, and Restricted Interests/ Repetitive Behaviors). The SRS-2-Social Cognition subscale measures a participant's ability to interpret social behavior. This subscale comprises 12 items with scores ranging from 1 to 4 for a total range of scores from 12 to 48. A higher score represents a greater ability to interpret social behaviors. Subscales are not diagnostic in nature, but they provide some insight into individual behaviors. This subscale was measured at Baseline, Week 4, Week 8, Week 12, and Week 16.
Social Responsiveness Scale-2 (SRS-2) Subscale Score (Social Communication)Baseline, Week 4, Week 8, Week 12, Week 16The Social Responsiveness Scale-2 (SRS-2) is a 65-item caregiver report that includes 5 subscales covering core symptom domains of ASD (Social Awareness, Social Cognition, Social Communication, Social Motivation, and Restricted Interests/ Repetitive Behaviors). The SRS-2-Social Communication subscale measures a participant's ability to assess reciprocal communication in social situations. This subscale comprises 22 items with scores ranging from 1 to 4 for a total range of scores from 22 to 88. A higher score represents a greater ability to assess reciprocal communication. Subscales are not diagnostic in nature, but they provide some insight into individual behaviors. This subscale was measured at Baseline, Week 4, Week 8, Week 12, and Week 16.
Mean Red Blood Cell ValueBaseline, Week 12This measure assesses the red blood cell value as part of the complete blood count measurement. This blood count measure was assessed at Baseline and Week 12.
Mean White Blood Cell ValueBaseline, Week 12This measure assesses the white blood cell value as part of the complete blood count measurement. This blood count measure was assessed at Baseline and Week 12.

Countries

United States

Participant flow

Participants by arm

ArmCount
Sulforaphane
Participants will take a sulforaphane supplement 3-8 tablets daily, with dose depending upon body weight. Each tablet contains 125 mg broccoli seed powder and 50 mg broccoli sprout extract, providing approximately 15 µmol sulforaphane. The weight-based dosing schedule is as follows: 3 tablets (approx. 46.5 µmol SF) if \<100 lb; 5 tablets (approx. 77.5 µmol SF) if 100-125 lb; 6 tablets (approx. 93 µmol SF) if 126-175 lb; 7 tablets (approx. 108.5 µmol SF) if 176-199 lb; 8 tablets (approx. 124 µmol SF) if ≥ 200 lb
24
Placebo
Participants in this arm will take placebo tablets that are identical in shape, size, and color to the sulforaphane tablets. The number of tablets taken per day corresponds to the weight-based schedule described for the sulforaphane arm.
24
Total48

Baseline characteristics

CharacteristicSulforaphanePlaceboTotal
Age, Categorical
<=18 years
16 Participants15 Participants31 Participants
Age, Categorical
>=65 years
0 Participants0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
8 Participants9 Participants17 Participants
Age, Continuous16.8 years
STANDARD_DEVIATION 3.9
17.7 years
STANDARD_DEVIATION 4.1
17.2 years
STANDARD_DEVIATION 4
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants2 Participants3 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
23 Participants22 Participants45 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
2 Participants0 Participants2 Participants
Race (NIH/OMB)
Black or African American
1 Participants2 Participants3 Participants
Race (NIH/OMB)
More than one race
2 Participants1 Participants3 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
19 Participants21 Participants40 Participants
Region of Enrollment
United States
24 Participants24 Participants48 Participants
Sex: Female, Male
Female
0 Participants0 Participants0 Participants
Sex: Female, Male
Male
24 Participants24 Participants48 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 240 / 24
other
Total, other adverse events
14 / 2414 / 24
serious
Total, serious adverse events
0 / 240 / 24

Outcome results

Primary

Social Responsiveness Scale-2 (SRS-2) Total Score at Baseline

The Social Responsiveness Scale-2 (SRS-2) is a 65-item caregiver report that includes 5 subscales covering core symptom domains of ASD (Social Awareness, Social Cognition, Social Communication, Social Motivation, and Restricted Interests/ Repetitive Behaviors). The SRS-2 provides a T-score that is scaled such that the mean is 50 and the SD is 10. Higher scores indicate a higher presence and severity of autistic social impairment. A T-score of 76 or higher is considered severe. T-scores between 66 and 75 are considered as moderate. T-scores between 60 and 65 are considered mild. A T-score below 60 is considered typical. The theoretical range of a T-score is 10 to 90. The actual range of the SRS-2 in this study is 45 to 90.

Time frame: Baseline

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
SulforaphaneSocial Responsiveness Scale-2 (SRS-2) Total Score at Baseline75.6 T-scoreStandard Error 7.4
PlaceboSocial Responsiveness Scale-2 (SRS-2) Total Score at Baseline72.6 T-scoreStandard Error 4.6
Comparison: The null hypothesis is that the least-square mean of sulforaphane's SRS-2 T-score minus the least-square mean of placebo group's T-score is 0.p-value: 0.331Mixed Models Analysis
Primary

Social Responsiveness Scale-2 (SRS-2) Total Score at Week 12

The Social Responsiveness Scale-2 (SRS-2) is a 65-item caregiver report that includes 5 subscales covering core symptom domains of ASD (Social Awareness, Social Cognition, Social Communication, Social Motivation, and Restricted Interests/ Repetitive Behaviors). The SRS-2 provides a T-score that is scaled such that the mean is 50 and the SD is 10. Higher scores indicate a higher presence and severity of autistic social impairment. A T-score of 76 or higher is considered severe. T-scores between 66 and 75 are considered as moderate. T-scores between 60 and 65 are considered mild. A T-score below 60 is considered typical. The theoretical range of a T-score is 10 to 90. The actual range of the SRS-2 in this study is 45 to 90.

Time frame: Week 12

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
SulforaphaneSocial Responsiveness Scale-2 (SRS-2) Total Score at Week 1275.3 T-scoreStandard Error 7.4
PlaceboSocial Responsiveness Scale-2 (SRS-2) Total Score at Week 1272.9 T-scoreStandard Error 4.6
Comparison: The null hypothesis is that the least-square mean of sulforaphane's SRS-2 T-score minus the least-square mean of placebo group's T-score is 0.p-value: 0.442Mixed Models Analysis
Primary

Social Responsiveness Scale-2 (SRS-2) Total Score at Week 16

The Social Responsiveness Scale-2 (SRS-2) is a 65-item caregiver report that includes 5 subscales covering core symptom domains of ASD (Social Awareness, Social Cognition, Social Communication, Social Motivation, and Restricted Interests/ Repetitive Behaviors). The SRS-2 provides a T-score that is scaled such that the mean is 50 and the SD is 10. Higher scores indicate a higher presence and severity of autistic social impairment. A T-score of 76 or higher is considered severe. T-scores between 66 and 75 are considered as moderate. T-scores between 60 and 65 are considered mild. A T-score below 60 is considered typical. The theoretical range of a T-score is 10 to 90. The actual range of the SRS-2 in this study is 45 to 90.

Time frame: Week 16

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
SulforaphaneSocial Responsiveness Scale-2 (SRS-2) Total Score at Week 1675.5 T-scoreStandard Error 7.4
PlaceboSocial Responsiveness Scale-2 (SRS-2) Total Score at Week 1672.7 T-scoreStandard Error 4.6
Comparison: The null hypothesis is that the least-square mean of sulforaphane's SRS-2 T-score minus the least-square mean of placebo group's T-score is 0.p-value: 0.373Mixed Models Analysis
Primary

Social Responsiveness Scale-2 (SRS-2) Total Score at Week 4

The Social Responsiveness Scale-2 (SRS-2) is a 65-item caregiver report that includes 5 subscales covering core symptom domains of ASD (Social Awareness, Social Cognition, Social Communication, Social Motivation, and Restricted Interests/ Repetitive Behaviors). The SRS-2 provides a T-score that is scaled such that the mean is 50 and the SD is 10. Higher scores indicate a higher presence and severity of autistic social impairment. A T-score of 76 or higher is considered severe. T-scores between 66 and 75 are considered as moderate. T-scores between 60 and 65 are considered mild. A T-score below 60 is considered typical. The theoretical range of a T-score is 10 to 90. The actual range of the SRS-2 in this study is 45 to 90.

Time frame: Week 4

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
SulforaphaneSocial Responsiveness Scale-2 (SRS-2) Total Score at Week 474.1 T-scoreStandard Error 7.4
PlaceboSocial Responsiveness Scale-2 (SRS-2) Total Score at Week 474.1 T-scoreStandard Error 4.6
Comparison: The null hypothesis is that the least-square mean of sulforaphane's SRS-2 T-score minus the least-square mean of placebo group's T-score is 0.p-value: 0.98Mixed Models Analysis
Primary

Social Responsiveness Scale-2 (SRS-2) Total Score at Week 8

The Social Responsiveness Scale-2 (SRS-2) is a 65-item caregiver report that includes 5 subscales covering core symptom domains of ASD (Social Awareness, Social Cognition, Social Communication, Social Motivation, and Restricted Interests/ Repetitive Behaviors). The SRS-2 provides a T-score that is scaled such that the mean is 50 and the SD is 10. Higher scores indicate a higher presence and severity of autistic social impairment. A T-score of 76 or higher is considered severe. T-scores between 66 and 75 are considered as moderate. T-scores between 60 and 65 are considered mild. A T-score below 60 is considered typical. The theoretical range of a T-score is 10 to 90. The actual range of the SRS-2 in this study is 45 to 90.

Time frame: Week 8

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
SulforaphaneSocial Responsiveness Scale-2 (SRS-2) Total Score at Week 873.7 T-scoreStandard Error 7.4
PlaceboSocial Responsiveness Scale-2 (SRS-2) Total Score at Week 874.5 T-scoreStandard Error 4.6
Comparison: The null hypothesis is that the least-square mean of sulforaphane's SRS-2 T-score minus the least-square mean of placebo group's T-score is 0.p-value: 0.797Mixed Models Analysis
Secondary

Aberrant Behavior Checklist (ABC) Subscale Score (Inappropriate Speech)

The Aberrant Behavior Checklist (ABC) is a 58-item caregiver questionnaire developed to assess medication effects in individuals with developmental disorders and includes 5 distinct subscales of behavioral symptoms. The ABC-Inappropriate Speech subscale assesses the participant's use of inappropriate speech. This subscale comprises 4 items with scores ranging from 0 to 3 for a total range of scores from 0 to 12. A higher score represents a greater use of inappropriate speech. This subscale was measured at Baseline, Week 4, Week 8, Week 12, and Week 16.

Time frame: Baseline, Week 4, Week 8, Week 12, Week 16

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
SulforaphaneAberrant Behavior Checklist (ABC) Subscale Score (Inappropriate Speech)Week 43.2 score on a scaleStandard Error 1.7
SulforaphaneAberrant Behavior Checklist (ABC) Subscale Score (Inappropriate Speech)Week 123.3 score on a scaleStandard Error 1.7
SulforaphaneAberrant Behavior Checklist (ABC) Subscale Score (Inappropriate Speech)Week 83.0 score on a scaleStandard Error 1.7
SulforaphaneAberrant Behavior Checklist (ABC) Subscale Score (Inappropriate Speech)Week 163.5 score on a scaleStandard Error 1.7
SulforaphaneAberrant Behavior Checklist (ABC) Subscale Score (Inappropriate Speech)Baseline3.4 score on a scaleStandard Error 1.7
PlaceboAberrant Behavior Checklist (ABC) Subscale Score (Inappropriate Speech)Week 162.6 score on a scaleStandard Error 1.1
PlaceboAberrant Behavior Checklist (ABC) Subscale Score (Inappropriate Speech)Baseline2.8 score on a scaleStandard Error 1.1
PlaceboAberrant Behavior Checklist (ABC) Subscale Score (Inappropriate Speech)Week 42.9 score on a scaleStandard Error 1.1
PlaceboAberrant Behavior Checklist (ABC) Subscale Score (Inappropriate Speech)Week 83.1 score on a scaleStandard Error 1.1
PlaceboAberrant Behavior Checklist (ABC) Subscale Score (Inappropriate Speech)Week 122.9 score on a scaleStandard Error 1.1
Secondary

Aberrant Behavior Checklist (ABC) Subscale Score (Irritability)

The Aberrant Behavior Checklist (ABC) is a 58-item caregiver questionnaire developed to assess medication effects in individuals with developmental disorders and includes 5 distinct subscales of behavioral symptoms. The ABC-Irritability subscale assesses the participant's level of irritability. This subscale comprises 15 items with scores ranging from 0 to 3 for a total range of scores from 0 to 45. A higher score represents a greater level of irritability. This subscale was measured at Baseline, Week 4, Week 8, Week 12, and Week 16.

Time frame: Baseline, Week 4, Week 8, Week 12, Week 16

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
SulforaphaneAberrant Behavior Checklist (ABC) Subscale Score (Irritability)Week 49.4 score on a scaleStandard Error 5.1
SulforaphaneAberrant Behavior Checklist (ABC) Subscale Score (Irritability)Week 129.7 score on a scaleStandard Error 5.1
SulforaphaneAberrant Behavior Checklist (ABC) Subscale Score (Irritability)Week 89.7 score on a scaleStandard Error 5.1
SulforaphaneAberrant Behavior Checklist (ABC) Subscale Score (Irritability)Week 169.8 score on a scaleStandard Error 5.1
SulforaphaneAberrant Behavior Checklist (ABC) Subscale Score (Irritability)Baseline9.6 score on a scaleStandard Error 5.1
PlaceboAberrant Behavior Checklist (ABC) Subscale Score (Irritability)Week 168.1 score on a scaleStandard Error 3.2
PlaceboAberrant Behavior Checklist (ABC) Subscale Score (Irritability)Baseline8.3 score on a scaleStandard Error 3.2
PlaceboAberrant Behavior Checklist (ABC) Subscale Score (Irritability)Week 48.6 score on a scaleStandard Error 3.2
PlaceboAberrant Behavior Checklist (ABC) Subscale Score (Irritability)Week 88.3 score on a scaleStandard Error 3.2
PlaceboAberrant Behavior Checklist (ABC) Subscale Score (Irritability)Week 128.3 score on a scaleStandard Error 3.2
Secondary

Aberrant Behavior Checklist (ABC) Subscale Scores (Hyperactivity)

The Aberrant Behavior Checklist (ABC) is a 58-item caregiver questionnaire developed to assess medication effects in individuals with developmental disorders and includes 5 distinct subscales of behavioral symptoms. The ABC-Hyperactivity subscale assesses the participant's level hyperactivity and non-compliance. This subscale comprises 16 items with scores ranging from 0 to 3 for a total range of scores from 0 to 48. A higher score represents a greater level of hyperactivity/non-compliance. This subscale was measured at Baseline, Week 4, Week 8, Week 12, and Week 16.

Time frame: Baseline, Week 4, Week 8, Week 12, Week 16

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
SulforaphaneAberrant Behavior Checklist (ABC) Subscale Scores (Hyperactivity)Week 413.0 score on a scaleStandard Error 5.7
SulforaphaneAberrant Behavior Checklist (ABC) Subscale Scores (Hyperactivity)Week 1213.7 score on a scaleStandard Error 5.7
SulforaphaneAberrant Behavior Checklist (ABC) Subscale Scores (Hyperactivity)Week 812.6 score on a scaleStandard Error 5.7
SulforaphaneAberrant Behavior Checklist (ABC) Subscale Scores (Hyperactivity)Week 1613.6 score on a scaleStandard Error 5.7
SulforaphaneAberrant Behavior Checklist (ABC) Subscale Scores (Hyperactivity)Baseline14.3 score on a scaleStandard Error 5.7
PlaceboAberrant Behavior Checklist (ABC) Subscale Scores (Hyperactivity)Week 1611.5 score on a scaleStandard Error 3.6
PlaceboAberrant Behavior Checklist (ABC) Subscale Scores (Hyperactivity)Baseline10.8 score on a scaleStandard Error 3.6
PlaceboAberrant Behavior Checklist (ABC) Subscale Scores (Hyperactivity)Week 412.1 score on a scaleStandard Error 3.6
PlaceboAberrant Behavior Checklist (ABC) Subscale Scores (Hyperactivity)Week 812.5 score on a scaleStandard Error 3.6
PlaceboAberrant Behavior Checklist (ABC) Subscale Scores (Hyperactivity)Week 1211.3 score on a scaleStandard Error 3.6
Secondary

Aberrant Behavior Checklist (ABC) Subscale Score (Social Withdrawal)

The Aberrant Behavior Checklist (ABC) is a 58-item caregiver questionnaire developed to assess medication effects in individuals with developmental disorders and includes 5 distinct subscales of behavioral symptoms. The ABC-Social Withdrawal subscale assesses the participant's level social withdrawal. This subscale comprises 16 items with scores ranging from 0 to 3 for a total range of scores from 0 to 48. A higher score represents a greater level of social withdrawal. This subscale was measured at Baseline, Week 4, Week 8, Week 12, and Week 16.

Time frame: Baseline, Week 4, Week 8, Week 12, Week 16

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
SulforaphaneAberrant Behavior Checklist (ABC) Subscale Score (Social Withdrawal)Week 88.2 score on a scaleStandard Error 5.1
SulforaphaneAberrant Behavior Checklist (ABC) Subscale Score (Social Withdrawal)Week 48.2 score on a scaleStandard Error 5.1
SulforaphaneAberrant Behavior Checklist (ABC) Subscale Score (Social Withdrawal)Week 129.0 score on a scaleStandard Error 5.1
SulforaphaneAberrant Behavior Checklist (ABC) Subscale Score (Social Withdrawal)Week 169.5 score on a scaleStandard Error 5.1
SulforaphaneAberrant Behavior Checklist (ABC) Subscale Score (Social Withdrawal)Baseline8.7 score on a scaleStandard Error 5.1
PlaceboAberrant Behavior Checklist (ABC) Subscale Score (Social Withdrawal)Week 167.5 score on a scaleStandard Error 3.2
PlaceboAberrant Behavior Checklist (ABC) Subscale Score (Social Withdrawal)Baseline8.3 score on a scaleStandard Error 3.2
PlaceboAberrant Behavior Checklist (ABC) Subscale Score (Social Withdrawal)Week 48.8 score on a scaleStandard Error 3.2
PlaceboAberrant Behavior Checklist (ABC) Subscale Score (Social Withdrawal)Week 88.8 score on a scaleStandard Error 3.2
PlaceboAberrant Behavior Checklist (ABC) Subscale Score (Social Withdrawal)Week 128.1 score on a scaleStandard Error 3.2
Secondary

Aberrant Behavior Checklist (ABC) Subscale Score (Stereotypy)

The Aberrant Behavior Checklist (ABC) is a 58-item caregiver questionnaire developed to assess medication effects in individuals with developmental disorders and includes 5 distinct subscales of behavioral symptoms. The ABC-Stereotypy subscale assesses the participant's level of stereotypic behavior. This subscale comprises 7 items with scores ranging from 0 to 3 for a total range of scores from 0 to 21. A higher score represents a greater level of stereotypic behavior. This subscale was measured at Baseline, Week 4, Week 8, Week 12, and Week 16.

Time frame: Baseline, Week 4, Week 8, Week 12, Week 16

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
SulforaphaneAberrant Behavior Checklist (ABC) Subscale Score (Stereotypy)Week 41.1 score on a scaleStandard Error 3.2
SulforaphaneAberrant Behavior Checklist (ABC) Subscale Score (Stereotypy)Week 121.3 score on a scaleStandard Error 3.2
SulforaphaneAberrant Behavior Checklist (ABC) Subscale Score (Stereotypy)Week 81.0 score on a scaleStandard Error 3.2
SulforaphaneAberrant Behavior Checklist (ABC) Subscale Score (Stereotypy)Week 161.6 score on a scaleStandard Error 3.2
SulforaphaneAberrant Behavior Checklist (ABC) Subscale Score (Stereotypy)Baseline1.3 score on a scaleStandard Error 3.2
PlaceboAberrant Behavior Checklist (ABC) Subscale Score (Stereotypy)Week 161.6 score on a scaleStandard Error 2
PlaceboAberrant Behavior Checklist (ABC) Subscale Score (Stereotypy)Baseline2.2 score on a scaleStandard Error 2
PlaceboAberrant Behavior Checklist (ABC) Subscale Score (Stereotypy)Week 42.4 score on a scaleStandard Error 2
PlaceboAberrant Behavior Checklist (ABC) Subscale Score (Stereotypy)Week 82.5 score on a scaleStandard Error 2
PlaceboAberrant Behavior Checklist (ABC) Subscale Score (Stereotypy)Week 122.2 score on a scaleStandard Error 2
Secondary

Clinical Global Impression-Severity (CGI-S) Score

The CGI-Severity (CGI-S) scale is a 7-point, clinician-rated scale providing an overall assessment of patient functioning relative to other patients with a similar diagnosis (1=not at all ill to 7=severely ill). A higher score indicates a higher level of severity of psychopathology. This scale was measured at Baseline, Week 4, Week 8, Week 12, and Week 16.

Time frame: Baseline, Week 4, Week 8, Week 12, Week 16

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
SulforaphaneClinical Global Impression-Severity (CGI-S) ScoreWeek 44.70 units on a scaleStandard Error 0.6
SulforaphaneClinical Global Impression-Severity (CGI-S) ScoreWeek 124.72 units on a scaleStandard Error 0.6
SulforaphaneClinical Global Impression-Severity (CGI-S) ScoreWeek 84.71 units on a scaleStandard Error 0.6
SulforaphaneClinical Global Impression-Severity (CGI-S) ScoreWeek 164.70 units on a scaleStandard Error 0.6
SulforaphaneClinical Global Impression-Severity (CGI-S) ScoreBaseline4.74 units on a scaleStandard Error 0.6
PlaceboClinical Global Impression-Severity (CGI-S) ScoreWeek 164.60 units on a scaleStandard Error 0.3
PlaceboClinical Global Impression-Severity (CGI-S) ScoreBaseline4.56 units on a scaleStandard Error 0.3
PlaceboClinical Global Impression-Severity (CGI-S) ScoreWeek 44.60 units on a scaleStandard Error 0.3
PlaceboClinical Global Impression-Severity (CGI-S) ScoreWeek 84.58 units on a scaleStandard Error 0.3
PlaceboClinical Global Impression-Severity (CGI-S) ScoreWeek 124.58 units on a scaleStandard Error 0.3
Secondary

Least Squares Mean of Vital Signs (Blood Pressure)

This measure assesses the change in the patient's systolic and diastolic blood pressure. This vital sign was measured at Baseline, Week 4, Week 8, Week 12, and Week 16.

Time frame: Baseline, Week 4, Week 8, Week 12, Week 16

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
SulforaphaneLeast Squares Mean of Vital Signs (Blood Pressure)Week 8 Systolic116.4 mmHgStandard Error 6.6
SulforaphaneLeast Squares Mean of Vital Signs (Blood Pressure)Baseline Systolic115.2 mmHgStandard Error 6.6
SulforaphaneLeast Squares Mean of Vital Signs (Blood Pressure)Week 12 Systolic116.2 mmHgStandard Error 6.6
SulforaphaneLeast Squares Mean of Vital Signs (Blood Pressure)Week 4 Systolic116.3 mmHgStandard Error 6.6
SulforaphaneLeast Squares Mean of Vital Signs (Blood Pressure)Week 12 Diastolic71.0 mmHgStandard Error 4.5
SulforaphaneLeast Squares Mean of Vital Signs (Blood Pressure)Week 8 Diastolic69.6 mmHgStandard Error 4.5
SulforaphaneLeast Squares Mean of Vital Signs (Blood Pressure)Week 16 Systolic116.2 mmHgStandard Error 6.6
SulforaphaneLeast Squares Mean of Vital Signs (Blood Pressure)Week 4 Diastolic69.7 mmHgStandard Error 4.5
SulforaphaneLeast Squares Mean of Vital Signs (Blood Pressure)Week 16 Diastolic71.1 mmHgStandard Error 4.5
SulforaphaneLeast Squares Mean of Vital Signs (Blood Pressure)Baseline Diastolic69.8 mmHgStandard Error 4.5
PlaceboLeast Squares Mean of Vital Signs (Blood Pressure)Week 16 Diastolic69.3 mmHgStandard Error 2.8
PlaceboLeast Squares Mean of Vital Signs (Blood Pressure)Baseline Systolic116.7 mmHgStandard Error 4.1
PlaceboLeast Squares Mean of Vital Signs (Blood Pressure)Baseline Diastolic70.6 mmHgStandard Error 2.8
PlaceboLeast Squares Mean of Vital Signs (Blood Pressure)Week 4 Systolic115.5 mmHgStandard Error 4.1
PlaceboLeast Squares Mean of Vital Signs (Blood Pressure)Week 4 Diastolic70.7 mmHgStandard Error 2.8
PlaceboLeast Squares Mean of Vital Signs (Blood Pressure)Week 8 Diastolic70.8 mmHgStandard Error 2.8
PlaceboLeast Squares Mean of Vital Signs (Blood Pressure)Week 12 Systolic115.7 mmHgStandard Error 4.1
PlaceboLeast Squares Mean of Vital Signs (Blood Pressure)Week 12 Diastolic69.4 mmHgStandard Error 2.8
PlaceboLeast Squares Mean of Vital Signs (Blood Pressure)Week 16 Systolic115.7 mmHgStandard Error 4.1
PlaceboLeast Squares Mean of Vital Signs (Blood Pressure)Week 8 Systolic115.4 mmHgStandard Error 4.1
Secondary

Least Squares Mean of Vital Signs (Heart Rate)

This measure assesses the change in the patient's heart rate (beats per minute). This vital sign was measured at Baseline, Week 4, Week 8, Week 12, and Week 16.

Time frame: Baseline, Week 4, Week 8, Week 12, Week 16

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
SulforaphaneLeast Squares Mean of Vital Signs (Heart Rate)Week 887.8 Beats per MinuteStandard Error 8.6
SulforaphaneLeast Squares Mean of Vital Signs (Heart Rate)Week 1286.5 Beats per MinuteStandard Error 8.6
SulforaphaneLeast Squares Mean of Vital Signs (Heart Rate)Week 488.0 Beats per MinuteStandard Error 8.6
SulforaphaneLeast Squares Mean of Vital Signs (Heart Rate)Week 1690.0 Beats per MinuteStandard Error 8.6
SulforaphaneLeast Squares Mean of Vital Signs (Heart Rate)Baseline86.1 Beats per MinuteStandard Error 8.6
PlaceboLeast Squares Mean of Vital Signs (Heart Rate)Week 1683.5 Beats per MinuteStandard Error 5.4
PlaceboLeast Squares Mean of Vital Signs (Heart Rate)Baseline87.5 Beats per MinuteStandard Error 5.4
PlaceboLeast Squares Mean of Vital Signs (Heart Rate)Week 485.6 Beats per MinuteStandard Error 5.4
PlaceboLeast Squares Mean of Vital Signs (Heart Rate)Week 1287.0 Beats per MinuteStandard Error 5.4
PlaceboLeast Squares Mean of Vital Signs (Heart Rate)Week 885.7 Beats per MinuteStandard Error 5.4
Secondary

Least Squares Mean of Vital Signs (Height)

This measure assesses the change in the patient's height (centimeters). This vital sign was measured at Baseline, Week 4, Week 8, Week 12, and Week 16.

Time frame: Baseline, Week 4, Week 8, Week 12, Week 16

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
SulforaphaneLeast Squares Mean of Vital Signs (Height)Week 4173.9 centimetersStandard Error 6.5
SulforaphaneLeast Squares Mean of Vital Signs (Height)Week 12173.9 centimetersStandard Error 6.5
SulforaphaneLeast Squares Mean of Vital Signs (Height)Week 8173.9 centimetersStandard Error 6.5
SulforaphaneLeast Squares Mean of Vital Signs (Height)Week 16173.9 centimetersStandard Error 6.5
SulforaphaneLeast Squares Mean of Vital Signs (Height)Baseline173.9 centimetersStandard Error 6.5
PlaceboLeast Squares Mean of Vital Signs (Height)Week 16173.3 centimetersStandard Error 4
PlaceboLeast Squares Mean of Vital Signs (Height)Baseline173.3 centimetersStandard Error 4
PlaceboLeast Squares Mean of Vital Signs (Height)Week 4173.3 centimetersStandard Error 4
PlaceboLeast Squares Mean of Vital Signs (Height)Week 8173.3 centimetersStandard Error 4
PlaceboLeast Squares Mean of Vital Signs (Height)Week 12173.3 centimetersStandard Error 4
Secondary

Least Squares Mean of Vital Signs (Weight)

This measure assesses the change in the patient's weight (lbs). This vital sign was measured at Baseline, Week 4, Week 8, Week 12, and Week 16.

Time frame: Baseline, Week 4, Week 8, Week 12, Week 16

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
SulforaphaneLeast Squares Mean of Vital Signs (Weight)Week 16146.8 poundsStandard Error 28.1
SulforaphaneLeast Squares Mean of Vital Signs (Weight)Baseline147.1 poundsStandard Error 28.1
SulforaphaneLeast Squares Mean of Vital Signs (Weight)Week 4147.2 poundsStandard Error 28.1
SulforaphaneLeast Squares Mean of Vital Signs (Weight)Week 8146.8 poundsStandard Error 28.1
SulforaphaneLeast Squares Mean of Vital Signs (Weight)Week 12146.9 poundsStandard Error 28.1
PlaceboLeast Squares Mean of Vital Signs (Weight)Week 12148.6 poundsStandard Error 17.4
PlaceboLeast Squares Mean of Vital Signs (Weight)Week 8148.6 poundsStandard Error 17.4
PlaceboLeast Squares Mean of Vital Signs (Weight)Baseline148.3 poundsStandard Error 17.4
PlaceboLeast Squares Mean of Vital Signs (Weight)Week 16148.6 poundsStandard Error 17.4
PlaceboLeast Squares Mean of Vital Signs (Weight)Week 4148.2 poundsStandard Error 17.4
Secondary

Mean Absolute Basophils Value

This measure assesses the absolute basophils value as part of the complete blood count measurement. This blood count measure was assessed at Baseline and Week 12.

Time frame: Baseline, Week 12

ArmMeasureGroupValue (MEAN)Dispersion
SulforaphaneMean Absolute Basophils ValueBaseline0.013 10^3 cells/microliterStandard Deviation 0.034
SulforaphaneMean Absolute Basophils ValueWeek 120.004 10^3 cells/microliterStandard Deviation 0.021
PlaceboMean Absolute Basophils ValueBaseline0.013 10^3 cells/microliterStandard Deviation 0.034
PlaceboMean Absolute Basophils ValueWeek 120.009 10^3 cells/microliterStandard Deviation 0.029
Secondary

Mean Absolute Eosinophils Value

This measure assesses the absolute eosinophils value as part of the complete blood count measurement. This blood count measure was assessed at Baseline and Week 12.

Time frame: Baseline, Week 12

ArmMeasureGroupValue (MEAN)Dispersion
SulforaphaneMean Absolute Eosinophils ValueBaseline0.2 10^6 cells/microliterStandard Deviation 0.1
SulforaphaneMean Absolute Eosinophils ValueWeek 120.2 10^6 cells/microliterStandard Deviation 0.1
PlaceboMean Absolute Eosinophils ValueBaseline0.1 10^6 cells/microliterStandard Deviation 0.1
PlaceboMean Absolute Eosinophils ValueWeek 120.2 10^6 cells/microliterStandard Deviation 0.2
Secondary

Mean Absolute Lymphocytes Value

This measure assesses the absolute lymphocytes value as part of the complete blood count measurement. This blood count measure was assessed at Baseline and Week 12.

Time frame: Baseline, Week 12

ArmMeasureGroupValue (MEAN)Dispersion
SulforaphaneMean Absolute Lymphocytes ValueBaseline2.1 10^3 cells/microliterStandard Deviation 0.6
SulforaphaneMean Absolute Lymphocytes ValueWeek 121.9 10^3 cells/microliterStandard Deviation 0.6
PlaceboMean Absolute Lymphocytes ValueBaseline2.1 10^3 cells/microliterStandard Deviation 0.5
PlaceboMean Absolute Lymphocytes ValueWeek 123.5 10^3 cells/microliterStandard Deviation 6.9
Secondary

Mean Absolute Monocytes Value

This measure assesses the absolute monocytes value as part of the complete blood count measurement. This blood count measure was assessed at Baseline and Week 12.

Time frame: Baseline, Week 12

ArmMeasureGroupValue (MEAN)Dispersion
SulforaphaneMean Absolute Monocytes ValueBaseline0.5 10^3 cells/microliterStandard Deviation 0.2
SulforaphaneMean Absolute Monocytes ValueWeek 120.5 10^3 cells/microliterStandard Deviation 0.1
PlaceboMean Absolute Monocytes ValueWeek 120.9 10^3 cells/microliterStandard Deviation 1.6
PlaceboMean Absolute Monocytes ValueBaseline0.6 10^3 cells/microliterStandard Deviation 0.2
Secondary

Mean Absolute Neutrophils Value

This measure assesses the absolute neutrophils value as part of the complete blood count measurement. This blood count measure was assessed at Baseline and Week 12.

Time frame: Baseline, Week 12

ArmMeasureGroupValue (MEAN)Dispersion
SulforaphaneMean Absolute Neutrophils ValueBaseline3.5 10^3 cells/microliterStandard Deviation 2
SulforaphaneMean Absolute Neutrophils ValueWeek 123.3 10^3 cells/microliterStandard Deviation 1.5
PlaceboMean Absolute Neutrophils ValueBaseline3.7 10^3 cells/microliterStandard Deviation 1.8
PlaceboMean Absolute Neutrophils ValueWeek 126.3 10^3 cells/microliterStandard Deviation 11
Secondary

Mean Corpuscular Hemoglobin Concentration Value

This measure assesses the mean corpuscular hemoglobin concentration value as part of the complete blood count measurement. This blood count measure was assessed at Baseline and Week 12.

Time frame: Baseline, Week 12

ArmMeasureGroupValue (MEAN)Dispersion
SulforaphaneMean Corpuscular Hemoglobin Concentration ValueBaseline33.8 g/dLStandard Deviation 1
SulforaphaneMean Corpuscular Hemoglobin Concentration ValueWeek 1233.8 g/dLStandard Deviation 0.9
PlaceboMean Corpuscular Hemoglobin Concentration ValueBaseline33.9 g/dLStandard Deviation 1.1
PlaceboMean Corpuscular Hemoglobin Concentration ValueWeek 1233.7 g/dLStandard Deviation 0.9
Secondary

Mean Corpuscular Hemoglobin Value

This measure assesses the mean corpuscular hemoglobin value as part of the complete blood count measurement. This blood count measure was assessed at Baseline and Week 12.

Time frame: Baseline, Week 12

ArmMeasureGroupValue (MEAN)Dispersion
SulforaphaneMean Corpuscular Hemoglobin ValueBaseline29.4 picogramStandard Deviation 1.7
SulforaphaneMean Corpuscular Hemoglobin ValueWeek 1229.7 picogramStandard Deviation 1.2
PlaceboMean Corpuscular Hemoglobin ValueBaseline29.3 picogramStandard Deviation 1.8
PlaceboMean Corpuscular Hemoglobin ValueWeek 1229.2 picogramStandard Deviation 1.8
Secondary

Mean Corpuscular Volume Value

This measure assesses the mean corpuscular volume value as part of the complete blood count measurement. This blood count measure was assessed at Baseline and Week 12.

Time frame: Baseline, Week 12

ArmMeasureGroupValue (MEAN)Dispersion
SulforaphaneMean Corpuscular Volume ValueBaseline87.3 femtoliterStandard Deviation 3.2
SulforaphaneMean Corpuscular Volume ValueWeek 1287.8 femtoliterStandard Deviation 3.1
PlaceboMean Corpuscular Volume ValueBaseline86.8 femtoliterStandard Deviation 4.6
PlaceboMean Corpuscular Volume ValueWeek 1286.6 femtoliterStandard Deviation 3.8
Secondary

Mean Hematocrit Value

This measure assesses the hematocrit value as part of the complete blood count measurement. This blood count measure was assessed at Baseline and Week 12.

Time frame: Baseline, Week 12

ArmMeasureGroupValue (MEAN)Dispersion
SulforaphaneMean Hematocrit ValueBaseline43.8 percentage of volume of whole bloodStandard Deviation 3.5
SulforaphaneMean Hematocrit ValueWeek 1244.4 percentage of volume of whole bloodStandard Deviation 3
PlaceboMean Hematocrit ValueBaseline44.4 percentage of volume of whole bloodStandard Deviation 2.9
PlaceboMean Hematocrit ValueWeek 1243.2 percentage of volume of whole bloodStandard Deviation 2.8
Secondary

Mean Hemoglobin Value

This measure assesses the hemoglobin value as part of the complete blood count measurement. This blood count measure was assessed at Baseline and Week 12.

Time frame: Baseline, Week 12

ArmMeasureGroupValue (MEAN)Dispersion
SulforaphaneMean Hemoglobin ValueBaseline14.8 g/dLStandard Deviation 1.4
SulforaphaneMean Hemoglobin ValueWeek 1215.0 g/dLStandard Deviation 1.2
PlaceboMean Hemoglobin ValueBaseline15.0 g/dLStandard Deviation 1.1
PlaceboMean Hemoglobin ValueWeek 1214.5 g/dLStandard Deviation 1
Secondary

Mean Liver Function Tests Values (Alanine Transaminase)

This measure assesses the change in the patient's level of liver function through measure of alanine transaminase (ALT). This liver function test value was measured at Baseline and Week 12.

Time frame: Baseline, Week 12

ArmMeasureGroupValue (MEAN)Dispersion
SulforaphaneMean Liver Function Tests Values (Alanine Transaminase)Baseline22.1 IU/LStandard Deviation 16.7
SulforaphaneMean Liver Function Tests Values (Alanine Transaminase)Week 1229.6 IU/LStandard Deviation 40.7
PlaceboMean Liver Function Tests Values (Alanine Transaminase)Baseline26.0 IU/LStandard Deviation 18
PlaceboMean Liver Function Tests Values (Alanine Transaminase)Week 1220.7 IU/LStandard Deviation 10.8
Secondary

Mean Liver Function Tests Values (Aspartate Transaminase)

This measure assesses the change in the patient's level of liver function through measure of aspartate transaminase. This liver function test value was measured at Baseline and Week 12.

Time frame: Baseline, Week 12

ArmMeasureGroupValue (MEAN)Dispersion
SulforaphaneMean Liver Function Tests Values (Aspartate Transaminase)Week 1225.2 IU/LStandard Deviation 10.6
SulforaphaneMean Liver Function Tests Values (Aspartate Transaminase)Baseline22.3 IU/LStandard Deviation 10.2
PlaceboMean Liver Function Tests Values (Aspartate Transaminase)Baseline21.9 IU/LStandard Deviation 5.8
PlaceboMean Liver Function Tests Values (Aspartate Transaminase)Week 1219.8 IU/LStandard Deviation 5.1
Secondary

Mean Liver Function Tests Values (Total Bilirubin)

This measure assesses the change in the patient's level of liver function through measure of total bilirubin. This liver function test value was measured at Baseline and Week 12.

Time frame: Baseline, Week 12

ArmMeasureGroupValue (MEAN)Dispersion
SulforaphaneMean Liver Function Tests Values (Total Bilirubin)Baseline0.5 mg/dLStandard Deviation 0.3
SulforaphaneMean Liver Function Tests Values (Total Bilirubin)Week 120.5 mg/dLStandard Deviation 0.2
PlaceboMean Liver Function Tests Values (Total Bilirubin)Week 120.5 mg/dLStandard Deviation 0.4
PlaceboMean Liver Function Tests Values (Total Bilirubin)Baseline0.4 mg/dLStandard Deviation 0.3
Secondary

Mean Platelets Value

This measure assesses the platelets value as part of the complete blood count measurement. This blood count measure was assessed at Baseline and Week 12.

Time frame: Baseline, Week 12

ArmMeasureGroupValue (MEAN)Dispersion
SulforaphaneMean Platelets ValueBaseline253.8 10^3 cells/microliterStandard Deviation 74.7
SulforaphaneMean Platelets ValueWeek 12246.0 10^3 cells/microliterStandard Deviation 69.5
PlaceboMean Platelets ValueBaseline286.0 10^3 cells/microliterStandard Deviation 67.5
PlaceboMean Platelets ValueWeek 12279.3 10^3 cells/microliterStandard Deviation 57.7
Secondary

Mean Red Blood Cell Distribution Width Value

This measure assesses the red blood cell distribution width value as part of the complete blood count measurement. This blood count measure was assessed at Baseline and Week 12.

Time frame: Baseline, Week 12

ArmMeasureGroupValue (MEAN)Dispersion
SulforaphaneMean Red Blood Cell Distribution Width ValueBaseline13.6 % of volume of whole bloodStandard Deviation 0.8
SulforaphaneMean Red Blood Cell Distribution Width ValueWeek 1213.6 % of volume of whole bloodStandard Deviation 0.9
PlaceboMean Red Blood Cell Distribution Width ValueBaseline13.7 % of volume of whole bloodStandard Deviation 1
PlaceboMean Red Blood Cell Distribution Width ValueWeek 1213.6 % of volume of whole bloodStandard Deviation 1
Secondary

Mean Red Blood Cell Value

This measure assesses the red blood cell value as part of the complete blood count measurement. This blood count measure was assessed at Baseline and Week 12.

Time frame: Baseline, Week 12

ArmMeasureGroupValue (MEAN)Dispersion
SulforaphaneMean Red Blood Cell ValueBaseline5.0 10^6 cells/microliterStandard Deviation 0.3
SulforaphaneMean Red Blood Cell ValueWeek 125.1 10^6 cells/microliterStandard Deviation 0.3
PlaceboMean Red Blood Cell ValueWeek 125.0 10^6 cells/microliterStandard Deviation 0.3
PlaceboMean Red Blood Cell ValueBaseline5.1 10^6 cells/microliterStandard Deviation 0.3
Secondary

Mean Serum Chemistries (Bicarbonate)

This measure assesses the change in the patient's bicarbonate levels. This serum chemistry level was measured at Baseline and Week 12.

Time frame: Baseline, Week 12

ArmMeasureGroupValue (MEAN)Dispersion
SulforaphaneMean Serum Chemistries (Bicarbonate)Baseline22.8 mmol/LStandard Deviation 3
SulforaphaneMean Serum Chemistries (Bicarbonate)Week 1223.1 mmol/LStandard Deviation 2.7
PlaceboMean Serum Chemistries (Bicarbonate)Baseline22.3 mmol/LStandard Deviation 1.5
PlaceboMean Serum Chemistries (Bicarbonate)Week 1222.8 mmol/LStandard Deviation 2.4
Secondary

Mean Serum Chemistries (Blood Urea Nitrogen)

This measure assesses the change in the patient's blood urea nitrogen levels. This serum chemistry level was measured at Baseline and Week 12.

Time frame: Baseline, Week 12

ArmMeasureGroupValue (MEAN)Dispersion
SulforaphaneMean Serum Chemistries (Blood Urea Nitrogen)Baseline13.0 mg/dLStandard Deviation 4.8
SulforaphaneMean Serum Chemistries (Blood Urea Nitrogen)Week 1213.3 mg/dLStandard Deviation 4.3
PlaceboMean Serum Chemistries (Blood Urea Nitrogen)Baseline11.4 mg/dLStandard Deviation 2.8
PlaceboMean Serum Chemistries (Blood Urea Nitrogen)Week 1211.6 mg/dLStandard Deviation 3.5
Secondary

Mean Serum Chemistries (Chloride)

This measure assesses the change in the patient's chloride levels. This serum chemistry level was measured at Baseline and Week 12.

Time frame: Baseline, Week 12

ArmMeasureGroupValue (MEAN)Dispersion
SulforaphaneMean Serum Chemistries (Chloride)Baseline100.1 mmol/LStandard Deviation 2.1
SulforaphaneMean Serum Chemistries (Chloride)Week 12100.1 mmol/LStandard Deviation 2.3
PlaceboMean Serum Chemistries (Chloride)Baseline99.6 mmol/LStandard Deviation 1.9
PlaceboMean Serum Chemistries (Chloride)Week 12100.7 mmol/LStandard Deviation 2.1
Secondary

Mean Serum Chemistries (Creatinine)

This measure assesses the change in the patient's creatinine levels. This serum chemistry level was measured at Baseline and Week 12.

Time frame: Baseline, Week 12

ArmMeasureGroupValue (MEAN)Dispersion
SulforaphaneMean Serum Chemistries (Creatinine)Baseline0.8 mg/dLStandard Deviation 0.1
SulforaphaneMean Serum Chemistries (Creatinine)Week 120.8 mg/dLStandard Deviation 0.1
PlaceboMean Serum Chemistries (Creatinine)Baseline0.8 mg/dLStandard Deviation 0.2
PlaceboMean Serum Chemistries (Creatinine)Week 120.8 mg/dLStandard Deviation 0.2
Secondary

Mean Serum Chemistries (Glucose)

This measure assesses the change in the patient's glucose levels. This serum chemistry level was measured at Baseline and Week 12.

Time frame: Baseline, Week 12

ArmMeasureGroupValue (MEAN)Dispersion
SulforaphaneMean Serum Chemistries (Glucose)Baseline90.9 mg/dLStandard Deviation 13
SulforaphaneMean Serum Chemistries (Glucose)Week 1287.0 mg/dLStandard Deviation 18.3
PlaceboMean Serum Chemistries (Glucose)Baseline91.1 mg/dLStandard Deviation 12.6
PlaceboMean Serum Chemistries (Glucose)Week 1286.3 mg/dLStandard Deviation 13.5
Secondary

Mean Serum Chemistries (Potassium)

This measure assesses the change in the patient's potassium levels. This serum chemistry level was measured at Baseline and Week 12.

Time frame: Baseline, Week 12

ArmMeasureGroupValue (MEAN)Dispersion
SulforaphaneMean Serum Chemistries (Potassium)Baseline4.4 mmol/LStandard Deviation 0.4
SulforaphaneMean Serum Chemistries (Potassium)Week 124.7 mmol/LStandard Deviation 0.6
PlaceboMean Serum Chemistries (Potassium)Baseline4.5 mmol/LStandard Deviation 0.4
PlaceboMean Serum Chemistries (Potassium)Week 124.5 mmol/LStandard Deviation 0.4
Secondary

Mean Serum Chemistries (Sodium)

This measure assesses the change in the patient's sodium levels. This serum chemistry level was measured at Baseline and Week 12.

Time frame: Baseline, Week 12

ArmMeasureGroupValue (MEAN)Dispersion
SulforaphaneMean Serum Chemistries (Sodium)Baseline140.6 millimol/literStandard Deviation 2.3
SulforaphaneMean Serum Chemistries (Sodium)Week 12141.8 millimol/literStandard Deviation 2.5
PlaceboMean Serum Chemistries (Sodium)Baseline141.0 millimol/literStandard Deviation 2
PlaceboMean Serum Chemistries (Sodium)Week 12141.3 millimol/literStandard Deviation 1.8
Secondary

Mean Value of Thyroid Stimulating Hormone (TSH)

This measure assesses the change in the patient's value of thyroid stimulating hormone. This hormone value was measured at Baseline and Week 12.

Time frame: Baseline, Week 12

ArmMeasureGroupValue (MEAN)Dispersion
SulforaphaneMean Value of Thyroid Stimulating Hormone (TSH)Baseline2.3 milli-international units/ microliterStandard Deviation 1.2
SulforaphaneMean Value of Thyroid Stimulating Hormone (TSH)Week 122.3 milli-international units/ microliterStandard Deviation 1.2
PlaceboMean Value of Thyroid Stimulating Hormone (TSH)Baseline2.2 milli-international units/ microliterStandard Deviation 1.2
PlaceboMean Value of Thyroid Stimulating Hormone (TSH)Week 121.8 milli-international units/ microliterStandard Deviation 1.1
Secondary

Mean White Blood Cell Value

This measure assesses the white blood cell value as part of the complete blood count measurement. This blood count measure was assessed at Baseline and Week 12.

Time frame: Baseline, Week 12

ArmMeasureGroupValue (MEAN)Dispersion
SulforaphaneMean White Blood Cell ValueBaseline6.3 10^3 cells/microliterStandard Deviation 2.3
SulforaphaneMean White Blood Cell ValueWeek 126.0 10^3 cells/microliterStandard Deviation 1.8
PlaceboMean White Blood Cell ValueBaseline6.5 10^3 cells/microliterStandard Deviation 2.2
PlaceboMean White Blood Cell ValueWeek 126.9 10^3 cells/microliterStandard Deviation 2.2
Secondary

Number of Participants With Clinical Global Impression-Improvement (CGI-I) Score of Much Improved or Very Much Improved

The clinician-rated CGI-Improvement (CGI-I) scale rates overall improvement or worsening of illness (ie, ASD) relative to baseline. The CGI-Improvement (CGI-I) scale rates overall improvement or worsening of illness (ie, ASD) relative to baseline. Possible scores on this scale range from 1-6 with the following assigned values: 1 = Very Much Improved; 2 = Much Improved; 3 = Minimally improved; 4 = No change; 5 = Minimally worse; 6= Much worse. A higher score indicates worsening of illness (ie, ASD), whereas a lower score indicates improvement of illness. This scale was measured at Week 4, Week 8, Week 12, and Week 16. In this measure, the number of participants in each treatment arm determined by the study physician to be Much Improved or Very Much Improved (indicative of meaningful clinical improvement) were counted.

Time frame: Week 4, Week 8, Week 12, Week 16

ArmMeasureGroupCategoryValue (COUNT_OF_PARTICIPANTS)
SulforaphaneNumber of Participants With Clinical Global Impression-Improvement (CGI-I) Score of Much Improved or Very Much ImprovedWeek 4Very Much Improved or Much Improved3 Participants
SulforaphaneNumber of Participants With Clinical Global Impression-Improvement (CGI-I) Score of Much Improved or Very Much ImprovedWeek 4No Improvement to Very Much Worse21 Participants
SulforaphaneNumber of Participants With Clinical Global Impression-Improvement (CGI-I) Score of Much Improved or Very Much ImprovedWeek 8Very Much Improved or Much Improved4 Participants
SulforaphaneNumber of Participants With Clinical Global Impression-Improvement (CGI-I) Score of Much Improved or Very Much ImprovedWeek 8No Improvement to Very Much Worse20 Participants
SulforaphaneNumber of Participants With Clinical Global Impression-Improvement (CGI-I) Score of Much Improved or Very Much ImprovedWeek 12Very Much Improved or Much Improved3 Participants
SulforaphaneNumber of Participants With Clinical Global Impression-Improvement (CGI-I) Score of Much Improved or Very Much ImprovedWeek 12No Improvement to Very Much Worse21 Participants
SulforaphaneNumber of Participants With Clinical Global Impression-Improvement (CGI-I) Score of Much Improved or Very Much ImprovedWeek 16Very Much Improved or Much Improved0 Participants
SulforaphaneNumber of Participants With Clinical Global Impression-Improvement (CGI-I) Score of Much Improved or Very Much ImprovedWeek 16No Improvement to Very Much Worse24 Participants
PlaceboNumber of Participants With Clinical Global Impression-Improvement (CGI-I) Score of Much Improved or Very Much ImprovedWeek 16No Improvement to Very Much Worse23 Participants
PlaceboNumber of Participants With Clinical Global Impression-Improvement (CGI-I) Score of Much Improved or Very Much ImprovedWeek 4Very Much Improved or Much Improved1 Participants
PlaceboNumber of Participants With Clinical Global Impression-Improvement (CGI-I) Score of Much Improved or Very Much ImprovedWeek 12Very Much Improved or Much Improved4 Participants
PlaceboNumber of Participants With Clinical Global Impression-Improvement (CGI-I) Score of Much Improved or Very Much ImprovedWeek 4No Improvement to Very Much Worse23 Participants
PlaceboNumber of Participants With Clinical Global Impression-Improvement (CGI-I) Score of Much Improved or Very Much ImprovedWeek 16Very Much Improved or Much Improved1 Participants
PlaceboNumber of Participants With Clinical Global Impression-Improvement (CGI-I) Score of Much Improved or Very Much ImprovedWeek 8Very Much Improved or Much Improved2 Participants
PlaceboNumber of Participants With Clinical Global Impression-Improvement (CGI-I) Score of Much Improved or Very Much ImprovedWeek 12No Improvement to Very Much Worse20 Participants
PlaceboNumber of Participants With Clinical Global Impression-Improvement (CGI-I) Score of Much Improved or Very Much ImprovedWeek 8No Improvement to Very Much Worse22 Participants
Secondary

Repetitive Behavior Scale-Revised (RBSR) Total Score

The RBS-R is a 43-item, informant-based questionnaire designed to quantify a range of restricted, repetitive behaviors (RRB) observed in ASD. Scores for each item range from 0 = Behavior does not occur to 3 = Behavior occurs and is a severe problem. Thus the total range is 0 to 129. A higher score indicates a higher breadth of repetitive behaviors. This scale was measured at Baseline, Week 4, Week 8, Week 12, and Week 16.

Time frame: Baseline, Week 4, Week 8, Week 12, Week 16

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
SulforaphaneRepetitive Behavior Scale-Revised (RBSR) Total ScoreWeek 421.7 score on a scaleStandard Error 14
SulforaphaneRepetitive Behavior Scale-Revised (RBSR) Total ScoreWeek 1223.3 score on a scaleStandard Error 14
SulforaphaneRepetitive Behavior Scale-Revised (RBSR) Total ScoreWeek 823.3 score on a scaleStandard Error 14
SulforaphaneRepetitive Behavior Scale-Revised (RBSR) Total ScoreWeek 1624.2 score on a scaleStandard Error 14
SulforaphaneRepetitive Behavior Scale-Revised (RBSR) Total ScoreBaseline23.0 score on a scaleStandard Error 14
PlaceboRepetitive Behavior Scale-Revised (RBSR) Total ScoreWeek 1621.0 score on a scaleStandard Error 8.7
PlaceboRepetitive Behavior Scale-Revised (RBSR) Total ScoreBaseline22.3 score on a scaleStandard Error 8.7
PlaceboRepetitive Behavior Scale-Revised (RBSR) Total ScoreWeek 423.5 score on a scaleStandard Error 8.7
PlaceboRepetitive Behavior Scale-Revised (RBSR) Total ScoreWeek 822.0 score on a scaleStandard Error 8.7
PlaceboRepetitive Behavior Scale-Revised (RBSR) Total ScoreWeek 1222.0 score on a scaleStandard Error 8.7
Secondary

Social Responsiveness Scale-2 (SRS-2) Subscale Score (Restricted Interests/Repetitive Behaviors)

The Social Responsiveness Scale-2 (SRS-2) is a 65-item caregiver report that includes 5 subscales covering core symptom domains of ASD (Social Awareness, Social Cognition, Social Communication, Social Motivation, and Restricted Interests/ Repetitive Behaviors). The SRS-2-Restricted Interests/Repetitive Behaviors subscale assesses the participant's level of stereotypy and circumscribed interests. This subscale comprises 12 items with scores ranging from 1 to 4 for a total range of scores from 12 to 48. A higher score represents a greater level of stereotypy and circumscribed interests. Subscales are not diagnostic in nature, but they provide some insight into individual behaviors. This subscale was measured at Baseline, Week 4, Week 8, Week 12, and Week 16.

Time frame: Baseline, Week 4, Week 8, Week 12, Week 16

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
SulforaphaneSocial Responsiveness Scale-2 (SRS-2) Subscale Score (Restricted Interests/Repetitive Behaviors)Week 418.1 score on a scaleStandard Error 4.5
SulforaphaneSocial Responsiveness Scale-2 (SRS-2) Subscale Score (Restricted Interests/Repetitive Behaviors)Week 1218.7 score on a scaleStandard Error 4.5
SulforaphaneSocial Responsiveness Scale-2 (SRS-2) Subscale Score (Restricted Interests/Repetitive Behaviors)Week 817.7 score on a scaleStandard Error 4.5
SulforaphaneSocial Responsiveness Scale-2 (SRS-2) Subscale Score (Restricted Interests/Repetitive Behaviors)Week 1618.5 score on a scaleStandard Error 4.5
SulforaphaneSocial Responsiveness Scale-2 (SRS-2) Subscale Score (Restricted Interests/Repetitive Behaviors)Baseline18.6 score on a scaleStandard Error 4.5
PlaceboSocial Responsiveness Scale-2 (SRS-2) Subscale Score (Restricted Interests/Repetitive Behaviors)Week 1617.7 score on a scaleStandard Error 2.8
PlaceboSocial Responsiveness Scale-2 (SRS-2) Subscale Score (Restricted Interests/Repetitive Behaviors)Baseline17.6 score on a scaleStandard Error 2.8
PlaceboSocial Responsiveness Scale-2 (SRS-2) Subscale Score (Restricted Interests/Repetitive Behaviors)Week 418.2 score on a scaleStandard Error 2.8
PlaceboSocial Responsiveness Scale-2 (SRS-2) Subscale Score (Restricted Interests/Repetitive Behaviors)Week 818.5 score on a scaleStandard Error 2.8
PlaceboSocial Responsiveness Scale-2 (SRS-2) Subscale Score (Restricted Interests/Repetitive Behaviors)Week 1217.5 score on a scaleStandard Error 2.8
Secondary

Social Responsiveness Scale-2 (SRS-2) Subscale Score (Social Awareness)

The Social Responsiveness Scale-2 (SRS-2) is a 65-item caregiver report that includes 5 subscales covering core symptom domains of ASD (Social Awareness, Social Cognition, Social Communication, Social Motivation, and Restricted Interests/ Repetitive Behaviors). The SRS-2-Social Awareness subscale measures a participant's ability to recognize social cues. This subscale comprises 8 items with scores ranging from 1 to 4 for a total range of scores from 8 to 32. A higher score represents a greater ability to recognize social cues. Subscales are not diagnostic in nature, but they provide some insight into individual behaviors. This subscale was measured at Baseline, Week 4, Week 8, Week 12, and Week 16.

Time frame: Baseline, Week 4, Week 8, Week 12, Week 16

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
SulforaphaneSocial Responsiveness Scale-2 (SRS-2) Subscale Score (Social Awareness)Week 410.5 score on a scaleStandard Error 2.5
SulforaphaneSocial Responsiveness Scale-2 (SRS-2) Subscale Score (Social Awareness)Week 1210.8 score on a scaleStandard Error 2.5
SulforaphaneSocial Responsiveness Scale-2 (SRS-2) Subscale Score (Social Awareness)Week 810.6 score on a scaleStandard Error 2.5
SulforaphaneSocial Responsiveness Scale-2 (SRS-2) Subscale Score (Social Awareness)Week 1610.7 score on a scaleStandard Error 2.5
SulforaphaneSocial Responsiveness Scale-2 (SRS-2) Subscale Score (Social Awareness)Baseline10.9 score on a scaleStandard Error 2.5
PlaceboSocial Responsiveness Scale-2 (SRS-2) Subscale Score (Social Awareness)Week 1611.2 score on a scaleStandard Error 1.6
PlaceboSocial Responsiveness Scale-2 (SRS-2) Subscale Score (Social Awareness)Baseline10.9 score on a scaleStandard Error 1.6
PlaceboSocial Responsiveness Scale-2 (SRS-2) Subscale Score (Social Awareness)Week 411.3 score on a scaleStandard Error 1.6
PlaceboSocial Responsiveness Scale-2 (SRS-2) Subscale Score (Social Awareness)Week 811.3 score on a scaleStandard Error 1.6
PlaceboSocial Responsiveness Scale-2 (SRS-2) Subscale Score (Social Awareness)Week 1211.0 score on a scaleStandard Error 1.6
Secondary

Social Responsiveness Scale-2 (SRS-2) Subscale Score (Social Cognition)

The Social Responsiveness Scale-2 (SRS-2) is a 65-item caregiver report that includes 5 subscales covering core symptom domains of ASD (Social Awareness, Social Cognition, Social Communication, Social Motivation, and Restricted Interests/ Repetitive Behaviors). The SRS-2-Social Cognition subscale measures a participant's ability to interpret social behavior. This subscale comprises 12 items with scores ranging from 1 to 4 for a total range of scores from 12 to 48. A higher score represents a greater ability to interpret social behaviors. Subscales are not diagnostic in nature, but they provide some insight into individual behaviors. This subscale was measured at Baseline, Week 4, Week 8, Week 12, and Week 16.

Time frame: Baseline, Week 4, Week 8, Week 12, Week 16

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
SulforaphaneSocial Responsiveness Scale-2 (SRS-2) Subscale Score (Social Cognition)Week 418.3 score on a scaleStandard Error 4.1
SulforaphaneSocial Responsiveness Scale-2 (SRS-2) Subscale Score (Social Cognition)Week 1218.7 score on a scaleStandard Error 4.1
SulforaphaneSocial Responsiveness Scale-2 (SRS-2) Subscale Score (Social Cognition)Week 818.2 score on a scaleStandard Error 4.1
SulforaphaneSocial Responsiveness Scale-2 (SRS-2) Subscale Score (Social Cognition)Week 1618.7 score on a scaleStandard Error 4.1
SulforaphaneSocial Responsiveness Scale-2 (SRS-2) Subscale Score (Social Cognition)Baseline19.1 score on a scaleStandard Error 4.1
PlaceboSocial Responsiveness Scale-2 (SRS-2) Subscale Score (Social Cognition)Week 1617.9 score on a scaleStandard Error 2.6
PlaceboSocial Responsiveness Scale-2 (SRS-2) Subscale Score (Social Cognition)Baseline17.4 score on a scaleStandard Error 2.6
PlaceboSocial Responsiveness Scale-2 (SRS-2) Subscale Score (Social Cognition)Week 418.2 score on a scaleStandard Error 2.6
PlaceboSocial Responsiveness Scale-2 (SRS-2) Subscale Score (Social Cognition)Week 818.4 score on a scaleStandard Error 2.6
PlaceboSocial Responsiveness Scale-2 (SRS-2) Subscale Score (Social Cognition)Week 1217.9 score on a scaleStandard Error 2.6
Secondary

Social Responsiveness Scale-2 (SRS-2) Subscale Score (Social Communication)

The Social Responsiveness Scale-2 (SRS-2) is a 65-item caregiver report that includes 5 subscales covering core symptom domains of ASD (Social Awareness, Social Cognition, Social Communication, Social Motivation, and Restricted Interests/ Repetitive Behaviors). The SRS-2-Social Communication subscale measures a participant's ability to assess reciprocal communication in social situations. This subscale comprises 22 items with scores ranging from 1 to 4 for a total range of scores from 22 to 88. A higher score represents a greater ability to assess reciprocal communication. Subscales are not diagnostic in nature, but they provide some insight into individual behaviors. This subscale was measured at Baseline, Week 4, Week 8, Week 12, and Week 16.

Time frame: Baseline, Week 4, Week 8, Week 12, Week 16

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
SulforaphaneSocial Responsiveness Scale-2 (SRS-2) Subscale Score (Social Communication)Week 432.4 score on a scaleStandard Error 6.6
SulforaphaneSocial Responsiveness Scale-2 (SRS-2) Subscale Score (Social Communication)Week 1234.1 score on a scaleStandard Error 6.6
SulforaphaneSocial Responsiveness Scale-2 (SRS-2) Subscale Score (Social Communication)Week 832.6 score on a scaleStandard Error 6.6
SulforaphaneSocial Responsiveness Scale-2 (SRS-2) Subscale Score (Social Communication)Week 1634.4 score on a scaleStandard Error 6.6
SulforaphaneSocial Responsiveness Scale-2 (SRS-2) Subscale Score (Social Communication)Baseline34.0 score on a scaleStandard Error 6.6
PlaceboSocial Responsiveness Scale-2 (SRS-2) Subscale Score (Social Communication)Week 1631.7 score on a scaleStandard Error 4.1
PlaceboSocial Responsiveness Scale-2 (SRS-2) Subscale Score (Social Communication)Baseline32.0 score on a scaleStandard Error 4.1
PlaceboSocial Responsiveness Scale-2 (SRS-2) Subscale Score (Social Communication)Week 433.6 score on a scaleStandard Error 4.1
PlaceboSocial Responsiveness Scale-2 (SRS-2) Subscale Score (Social Communication)Week 833.5 score on a scaleStandard Error 4.1
PlaceboSocial Responsiveness Scale-2 (SRS-2) Subscale Score (Social Communication)Week 1232.0 score on a scaleStandard Error 4.1
Secondary

Social Responsiveness Scale-2 (SRS-2) Subscale Score (Social Motivation)

The Social Responsiveness Scale-2 (SRS-2) is a 65-item caregiver report that includes 5 subscales covering core symptom domains of ASD (Social Awareness, Social Cognition, Social Communication, Social Motivation, and Restricted Interests/ Repetitive Behaviors). The SRS-2-Social Motivation subscale measures the degree to which a participant is motivated to participate in social interactions. This subscale comprises 11 items with scores ranging from 1 to 4 for a total range of scores from 11 to 44. A higher score represents a greater motivation to participate in social interaction. Subscales are not diagnostic in nature, but they provide some insight into individual behaviors. This subscale was measured at Baseline, Week 4, Week 8, Week 12, and Week 16.

Time frame: Baseline, Week 4, Week 8, Week 12, Week 16

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
SulforaphaneSocial Responsiveness Scale-2 (SRS-2) Subscale Score (Social Motivation)Week 414.8 score on a scaleStandard Error 4.1
SulforaphaneSocial Responsiveness Scale-2 (SRS-2) Subscale Score (Social Motivation)Week 1215.5 score on a scaleStandard Error 4.1
SulforaphaneSocial Responsiveness Scale-2 (SRS-2) Subscale Score (Social Motivation)Week 814.6 score on a scaleStandard Error 4.1
SulforaphaneSocial Responsiveness Scale-2 (SRS-2) Subscale Score (Social Motivation)Week 1615.9 score on a scaleStandard Error 4.1
SulforaphaneSocial Responsiveness Scale-2 (SRS-2) Subscale Score (Social Motivation)Baseline15.5 score on a scaleStandard Error 4.1
PlaceboSocial Responsiveness Scale-2 (SRS-2) Subscale Score (Social Motivation)Week 1614.3 score on a scaleStandard Error 2.5
PlaceboSocial Responsiveness Scale-2 (SRS-2) Subscale Score (Social Motivation)Baseline14.7 score on a scaleStandard Error 2.5
PlaceboSocial Responsiveness Scale-2 (SRS-2) Subscale Score (Social Motivation)Week 415.4 score on a scaleStandard Error 2.5
PlaceboSocial Responsiveness Scale-2 (SRS-2) Subscale Score (Social Motivation)Week 815.6 score on a scaleStandard Error 2.5
PlaceboSocial Responsiveness Scale-2 (SRS-2) Subscale Score (Social Motivation)Week 1214.7 score on a scaleStandard Error 2.5

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026