NSI-189

Investigational Nootropic

Experimental neurogenic compound evaluated for major depressive disorder. The phase 2 primary clinician-rated depression outcome was not significantly better than placebo, despite signals on some secondary patient-reported and cognitive measures.

Pharmacokinetic model

A route-level PK model for nsi-189 is being prepared from published data. Dosing references, studies, and documented interactions are below; the app catalog is updated as models are validated.

Key facts

Category
Investigational Nootropic
Suggested cadence
once daily

Research behind this entry

  1. A phase 2, double-blind, placebo-controlled study of NSI-189 phosphate, a neurogenic compound, among outpatients with major depressive disorder Papakostas GI, Johe K, Hand H, Drouillard A, Russo P, Kay G, Kashambwa R, Hoeppner B, Flynn M, Yeung A, Martinson MA, Fava M · Molecular Psychiatry, 2020 DOI

    In 220 adults, neither 40 nor 80 mg/day produced a significant benefit on the prespecified clinician-rated primary depression endpoint. Some secondary measures favored treatment, making the overall result mixed rather…

  2. The neurogenic compound, NSI-189 phosphate: a novel multi-domain treatment capable of pro-cognitive and antidepressant effects McIntyre RS, Johe K, Rong C, Lee Y · Expert Opinion on Investigational Drugs, 2017 DOI

    Narrative review summarized early development and proposed neurogenic, cognitive, and antidepressant effects before the later phase 2 result. It is not independent confirmation of efficacy.

2 published studies referenced in the app, each with a plain-language summary.