Decreasing Risk of Psychosis by Sulforaphane (DROPS Trial)
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.
Timeline
- Start
- 2019-07-14
- Primary completion
- 2026-12-31
- Completion
- 2026-12-31
Publications
- Background 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.
- Background Miller 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.
- Background Kay 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.
- Background Carrion 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.
- Background Zhang 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.
- Background Nuechterlein 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.
- Background Kern 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.
- Background Addington 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.
- Background Li 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.
- Background 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.
- Background Bent 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.
- Background Li 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.
Drugs
| Evaluation | Drug | Modality | Dose | Route |
|---|---|---|---|---|
| Subject | Sulforaphane | Small molecule | 0.411 mmol | — |