Decreasing Risk of Psychosis by Sulforaphane (DROPS Trial)
1 other identifier
interventional
300
1 country
9
Brief Summary
This is a randomized, double-blind, placebo-controlled, multi-centre trial. A total of 300 CHR subjects will be identified in the course of face-to-face interviews using the Structured Interview for Prodromal Syndromes. All participants will be randomly allocated to SFN group (n = 150) or placebo group (n = 150). The study duration includes an intervention for 52 consecutive weeks, and additional 1-year follow-up. The primary outcome is 2-year conversion rate of psychosis. Secondary outcomes include 1-year conversion rate of psychosis, the severity and duration of prodromal symptoms, predictive risk of psychosis conversion, neurocognitive functioning and peripheral blood biomarkers of inflammation, oxidative stress and metabolism. Safety monitoring will be performed using scales for side effect, serious adverse events recording, and laboratory tests.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for phase_3
Started Jul 2019
Longer than P75 for phase_3
9 active sites
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
April 23, 2019
CompletedFirst Posted
Study publicly available on registry
April 30, 2019
CompletedStudy Start
First participant enrolled
July 14, 2019
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 31, 2025
CompletedStudy Completion
Last participant's last visit for all outcomes
December 31, 2026
ExpectedOctober 31, 2023
October 1, 2023
6.5 years
April 23, 2019
October 28, 2023
Conditions
Outcome Measures
Primary Outcomes (1)
2-year conversion rate of psychosis
The proportion of patients are diagnosed with psychosis in each group
104 weeks
Secondary Outcomes (9)
1-year conversion rate of psychosis
52 weeks
Severity of prodromal symptoms
24 weeks, 52 weeks, 104 weeks
Severity of psychotic symptom
24 weeks, 52 weeks, 104 weeks
Function
24 weeks, 52 weeks, 104 weeks
Predictive risk of psychosis
24 weeks, 52 weeks, 104 weeks
- +4 more secondary outcomes
Other Outcomes (5)
Serious adverse events
the whole process
Side-effects of SFN and placebo
52 weeks
Compliance
24 weeks
- +2 more other outcomes
Study Arms (2)
SFN group
ACTIVE COMPARATORThe intervention duration with SFN tablet is 52 consecutive weeks. The dosage is six active tablets (411 μmol GR) per day.
Placebo group
PLACEBO COMPARATORThe intervention duration with placebo tablet is 52 consecutive weeks. The placebo group will be given six placebo tablets per day.
Interventions
Sulforaphane (SFN) is a natural compound extracts from cruciferous vegetables, especially broccoli, with cytoprotective, anti-inflammatory, and antioxidant effects.
The placebo is safe, with no therapeutical effect, and has same appearance and similar smell and taste with active tablet.
Eligibility Criteria
You may qualify if:
- Subjects meet the criteria of CHR according to the Structured Interview for Prodromal Syndromes (SIPS);
- Subjects will have no history of being medicated with either antipsychotics or mood stabilizers at their first study visit;
- Age, within the range of 15 to 45 years;
- Patients and/or their legal guardians for those younger than 18 year old, can understand and sign informed consent, and agree to take the study interventions and complete all visits and examinations.
You may not qualify if:
- A history of schizophrenia or any other psychotic disorders;
- Severe physical diseases (ie, cardiac and neurologic diseases, brain trauma, liver and kidney diseases, haematopoietic system and immune system dysfunction), or cancer, or other serious complicated diseases;
- IQ \< 70 is assessed by Wechsler Adult Intelligence Scale-Revised in China, or a specific of developmental delay or intellectual disability;
- Abnormal laboratory test results with clinical significance which will affect the safety of participants as determined by the investigator;
- A past and/or current abuse of alcohol, amphetamine or any other psychostimulants;
- Suicidal ideation, plan, or suicidal behaviour in the last 3 months;
- Clinically significant allergic reaction to broccoli;
- Pregnancy or preparing for pregnancy, and/or lactation;
- Participation in another clinical trial within the last 30 days.
- Other conditions that make the candidate subject unsuitable for this study as determined by the principal investigators (eg, aggressive behaviour, safety concerns, difficulty to complete the follow-up, etc.).
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Shanghai Jiao Tong University School of Medicinelead
- Shanghai Xuhui District Mental Health Centercollaborator
- Shanghai Pudong Nanhui Mental Health Centercollaborator
- Suzhou Psychiatric Hospitalcollaborator
- Second Xiangya Hospital of Central South Universitycollaborator
- Guangzhou Psychiatric Hospitalcollaborator
- Shenzhen Fushan Biotech Co., Ltd.collaborator
- Tianjin Anding Hospitalcollaborator
- The First Affiliated Hospital of Zhengzhou Universitycollaborator
- Shenzhen Kangning Hospitalcollaborator
Study Sites (9)
Guangzhou Psychiatric Hospital
Guangzhou, Guangdong, 510009, China
the First Affiliated Hospital of Zhengzhou University
Zhengzhou, Henan, China
Second Xiangya Hospital of Central South University
Changsha, Hunan, 410008, China
Suzhou Psychiatric Hospital
Suzhou, Jiangsu, 201300, China
Shanghai Mental Health Center
Shanghai, Shanghai Municipality, 200030, China
Shanghai Xuhui District Mental Health Center
Shanghai, Shanghai Municipality, 200032, China
Shanghai Pudong Nanhui Mental Health Center
Shanghai, Shanghai Municipality, 201300, China
Shenzhen Kangning Hospital
Shenzhen, Shenzhen, 518118, China
Tianjin Anding Hospital
Tianjin, Tianjin Municipality, China
Related Publications (12)
World Medical Association. World Medical Association Declaration of Helsinki: ethical principles for medical research involving human subjects. JAMA. 2013 Nov 27;310(20):2191-4. doi: 10.1001/jama.2013.281053. No abstract available.
PMID: 24141714BACKGROUNDMiller TJ, McGlashan TH, Rosen JL, Cadenhead K, Cannon T, Ventura J, McFarlane W, Perkins DO, Pearlson GD, Woods SW. Prodromal assessment with the structured interview for prodromal syndromes and the scale of prodromal symptoms: predictive validity, interrater reliability, and training to reliability. Schizophr Bull. 2003;29(4):703-15. doi: 10.1093/oxfordjournals.schbul.a007040.
PMID: 14989408BACKGROUNDKay SR, Fiszbein A, Opler LA. The positive and negative syndrome scale (PANSS) for schizophrenia. Schizophr Bull. 1987;13(2):261-76. doi: 10.1093/schbul/13.2.261.
PMID: 3616518BACKGROUNDCarrion RE, Cornblatt BA, Burton CZ, Tso IF, Auther AM, Adelsheim S, Calkins R, Carter CS, Niendam T, Sale TG, Taylor SF, McFarlane WR. Personalized Prediction of Psychosis: External Validation of the NAPLS-2 Psychosis Risk Calculator With the EDIPPP Project. Am J Psychiatry. 2016 Oct 1;173(10):989-996. doi: 10.1176/appi.ajp.2016.15121565. Epub 2016 Jul 1.
PMID: 27363511BACKGROUNDZhang T, Xu L, Tang Y, Li H, Tang X, Cui H, Wei Y, Wang Y, Hu Q, Liu X, Li C, Lu Z, McCarley RW, Seidman LJ, Wang J; SHARP (ShangHai At Risk for Psychosis) Study Group. Prediction of psychosis in prodrome: development and validation of a simple, personalized risk calculator. Psychol Med. 2019 Sep;49(12):1990-1998. doi: 10.1017/S0033291718002738. Epub 2018 Sep 14.
PMID: 30213278BACKGROUNDNuechterlein KH, Green MF, Kern RS, Baade LE, Barch DM, Cohen JD, Essock S, Fenton WS, Frese FJ 3rd, Gold JM, Goldberg T, Heaton RK, Keefe RS, Kraemer H, Mesholam-Gately R, Seidman LJ, Stover E, Weinberger DR, Young AS, Zalcman S, Marder SR. The MATRICS Consensus Cognitive Battery, part 1: test selection, reliability, and validity. Am J Psychiatry. 2008 Feb;165(2):203-13. doi: 10.1176/appi.ajp.2007.07010042. Epub 2008 Jan 2.
PMID: 18172019BACKGROUNDKern RS, Nuechterlein KH, Green MF, Baade LE, Fenton WS, Gold JM, Keefe RS, Mesholam-Gately R, Mintz J, Seidman LJ, Stover E, Marder SR. The MATRICS Consensus Cognitive Battery, part 2: co-norming and standardization. Am J Psychiatry. 2008 Feb;165(2):214-20. doi: 10.1176/appi.ajp.2007.07010043. Epub 2008 Jan 2.
PMID: 18172018BACKGROUNDAddington J, Liu L, Buchy L, Cadenhead KS, Cannon TD, Cornblatt BA, Perkins DO, Seidman LJ, Tsuang MT, Walker EF, Woods SW, Bearden CE, Mathalon DH, McGlashan TH. North American Prodrome Longitudinal Study (NAPLS 2): The Prodromal Symptoms. J Nerv Ment Dis. 2015 May;203(5):328-35. doi: 10.1097/NMD.0000000000000290.
PMID: 25919383BACKGROUNDLi H, Zhang T, Xu L, Tang Y, Cui H, Wei Y, Tang X, Woodberry KA, Shapiro DI, Li C, Seidman LJ, Wang J. A comparison of conversion rates, clinical profiles and predictors of outcomes in two independent samples of individuals at clinical high risk for psychosis in China. Schizophr Res. 2018 Jul;197:509-515. doi: 10.1016/j.schres.2017.11.029. Epub 2017 Dec 26.
PMID: 29287626BACKGROUNDSingh 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: 25313065BACKGROUNDBent S, Lawton B, Warren T, Widjaja F, Dang K, Fahey JW, Cornblatt B, Kinchen JM, Delucchi K, Hendren RL. Identification of urinary metabolites that correlate with clinical improvements in children with autism treated with sulforaphane from broccoli. Mol Autism. 2018 May 30;9:35. doi: 10.1186/s13229-018-0218-4. eCollection 2018.
PMID: 29854372BACKGROUNDLi Z, Zhang T, Xu L, Wei Y, Tang Y, Hu Q, Liu X, Li X, Davis J, Smith R, Jin H, Wang J. Decreasing risk of psychosis by sulforaphane study protocol for a randomized, double-blind, placebo-controlled, clinical multi-centre trial. Early Interv Psychiatry. 2021 Jun;15(3):585-594. doi: 10.1111/eip.12988. Epub 2020 May 21.
PMID: 32436318BACKGROUND
MeSH Terms
Interventions
Study Officials
- STUDY DIRECTOR
Jijun Wang, PhD
Shanghai Mental Health Center
- PRINCIPAL INVESTIGATOR
Tianhong Zhang, PhD
Shanghai Mental Health Center
- PRINCIPAL INVESTIGATOR
Hua Jin, PhD
University of California, San Diego
- PRINCIPAL INVESTIGATOR
Xiaolong Li, PhD
Shenzhen Fushan Biotech Co., Ltd.
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- RANDOMIZED
- Masking
- QUADRUPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- PREVENTION
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Professor
Study Record Dates
First Submitted
April 23, 2019
First Posted
April 30, 2019
Study Start
July 14, 2019
Primary Completion
December 31, 2025
Study Completion (Estimated)
December 31, 2026
Last Updated
October 31, 2023
Record last verified: 2023-10
Data Sharing
- IPD Sharing
- Will not share