NCT02677051

Brief Summary

This study is a double blind treatment trial that will test if sulforaphane improves core symptoms in autism. The investigators expect to see clinical improvement in some of these areas. Sulforaphanes come from eating certain vegetables such as broccoli. The investigators will be using a preparation that gives specific and reproducible amounts. The investigators will also test specific chemicals and genes needed for sulforaphane usage to try to understand differences in response.

Trial Health

55
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
48

participants targeted

Target at P25-P50 for phase_2

Timeline
Completed

Started Feb 2016

Longer than P75 for phase_2

Geographic Reach
1 country

1 active site

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

January 28, 2016

Completed
4 days until next milestone

Study Start

First participant enrolled

February 1, 2016

Completed
8 days until next milestone

First Posted

Study publicly available on registry

February 9, 2016

Completed
9.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2025

Completed
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

March 1, 2026

Completed
Last Updated

October 29, 2025

Status Verified

October 1, 2025

Enrollment Period

9.8 years

First QC Date

January 28, 2016

Last Update Submit

October 27, 2025

Conditions

Outcome Measures

Primary Outcomes (4)

  • Change in Aberrant Behavior Checklist (ABC) scores.

    Baseline, week 4, week 10, week 18 and week 22.

  • Change in Social Responsiveness Scale (SRS) scores.

    Baseline, week 4, week 10, week 18 and week 22.

  • Clinical Global Impression Severity Scale (CGI-S).

    Baseline

  • Clinical Global Impression Improvement Scale (CGI-I) to measure change from baseline CGI-S scores.

    Week 4, week 10, week 18 and week 22.

Secondary Outcomes (3)

  • Liver Function Tests as a screen for entry into the study and a monitor of potential change/adverse events due to treatment.

    Baseline, week 4, week 18 and week 22.

  • Renal Function Tests as a screen for entry into the study and a monitor of potential change/adverse events due to treatment.

    Baseline, week 4, week 18 and week 22.

  • Thyroid Stimulating Hormone (TSH) as a screen for entry into the study and a monitor of potential change/adverse events due to treatment.

    Baseline, week 4, week 18 and week 22.

Study Arms (2)

Placebo

PLACEBO COMPARATOR

About 15 subjects will be randomized into this arm, receiving pills with an inactive placebo.

Drug: Placebo

Sulforaphane

EXPERIMENTAL

About 30 subjects will be randomized into this arm, receiving pills with glucoraphanin rich broccoli seed powder containing active myrosinase resulting in sulforaphane once ingested Doses will be weight dependent with each pill resulting in \~ 50 µmol sulforaphane. Body weight Dose of sulforaphane 34 kg \~ 50 µmol 68 kg \~ 100 µmol 102 kg \~ 150 µmol

Drug: Sulforaphane

Interventions

Sulforaphane (1-isothiocyanato-4R- (methylsulfinyl)butane) is an isothiocyanate derived from the action of the plant enzyme myrosinase on glucosinolates including glucoraphanin and comes from consumption of many cruciferous vegetables.

Also known as: Avmacol
Sulforaphane
Placebo

Eligibility Criteria

Age13 Years - 30 Years
Sexmale
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64)

You may qualify if:

  • Autistic disorder diagnosis.
  • Age between 13-30 years.
  • Male gender.

You may not qualify if:

  • Absence of a parent or legal guardian and consent,
  • Those that can not or will not complete all visits and adherence to study regimen.
  • Seizure within 2 years of screening,
  • Impaired renal function (serum creatinine\> 1.2 mg/dl).
  • Impaired hepatic function (\> 2x upper limit of normal).
  • Impaired thyroid function (TSH outside normal limits).
  • Current infection or treatment with antibiotics.
  • Chronic medical disorder (e.g., cardiovascular disease, stroke or diabetes) or major surgery within 3 months prior to enrollment.
  • Less than 13 years or more than 30 years of age.
  • Female gender.
  • A diagnosis of autism spectrum disorder other than autistic disorder, for example, Asperger, Pervasive Developmental Disorder Not Otherwise Specified (PDD-NOS) etc.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Rutgers University - Staged Research Building

Piscataway, New Jersey, 08854, United States

Location

Related Publications (1)

  • Singh K, Connors SL, Macklin EA, Smith KD, Fahey JW, Talalay P, Zimmerman AW. Sulforaphane treatment of autism spectrum disorder (ASD). Proc Natl Acad Sci U S A. 2014 Oct 28;111(43):15550-5. doi: 10.1073/pnas.1416940111. Epub 2014 Oct 13.

    PMID: 25313065BACKGROUND

MeSH Terms

Conditions

Autistic DisorderAutism Spectrum DisorderChild Development Disorders, Pervasive

Interventions

sulforaphane

Condition Hierarchy (Ancestors)

Neurodevelopmental DisordersMental Disorders

Study Officials

  • Steven Buyske

    Rutgers, The State University of NJ

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor

Study Record Dates

First Submitted

January 28, 2016

First Posted

February 9, 2016

Study Start

February 1, 2016

Primary Completion

December 1, 2025

Study Completion

March 1, 2026

Last Updated

October 29, 2025

Record last verified: 2025-10

Data Sharing

IPD Sharing
Will not share

Locations