Drugs / Evenamide
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Evenamide

also known as NW-3509A · Evenamida · Nw-3509

Small molecule

Developed for
schizophrenia · treatment-refractory schizophrenia
Investigated by
Newron Pharmaceuticals SPA

Regulatory milestones approvals, filings & regulatory actions · 1 recorded

MilestoneJurisdictionBrandIndicationDateSentence it was read from
Clinical hold US (FDA) — treatment-refractory schizophrenia 2026-04-29

“FDA has placed a hold on the enrollment of new patients in the US sites of its Phase III ENIGMA-TRS 2 study of evenamide” newron.com ↗

Trials 4

20142015201620172018201920202021202220232024202520262027
PhaseRegistry idDatesIndicationSponsorStatusOutcome
Phase 12 trials
Phase 1 NCT03446274 Apr 2018 — Newron Pharmaceuticals SPA Unknown No outcome recorded
Phase 1 NCT01955564 Jun 2013 → Sep 2014 schizophrenia Newron Pharmaceuticals SPA Completed No outcome recorded
Phase 21 trial · 1 met primary
Phase 2 NCT04461119 Jun 2020 → Feb 2021 schizophrenia Newron Pharmaceuticals SPA Completed Met primary
Phase 31 trial
Phase 3 NCT07184619 Jan → Dec 2026 expected treatment-refractory schizophrenia Newron Pharmaceuticals SPA Recruiting No outcome recorded
Comparator or background therapy1 trial
Phase 2 NCT02624167 Comparator Dec 2015 → Dec 2016 schizophrenia Newron Pharmaceuticals SPA Completed No outcome recorded

News releases announcing trial results or a regulatory action · 24

DateIssuerRelease
2026-04-29 Newron Pharmaceuticals SPA Regulatory Newron reports a pause in enrollment of new study participants in US centers of ENIGMA-TRS 2 study newron.com ↗
Newron is working closely with the FDA and intends to provide the requested information to support resolution of the hold and the resumption of enrollment at U.S. sites for the ENIGMA-TRS 2 study.
2026-02-03 Newron Pharmaceuticals SPA Results Newron Notes Publication Highlighting Clinically Meaningful Benefits of Evenamide as an Adjunctive Treatment in Schizophrenia newron.com ↗
The publication synthesizes results from multiple randomized clinical trials and provides a scientific mechanistic rationale for the use of evenamide as a unique approach that targets disease mechanisms not addressed by existing antipsychotics.
2025-10-02 Newron Pharmaceuticals SPA Results Newron to present new analyses from and updates on its clinical program evaluating evenamide as an add-on treatment for schizophrenia at the 38th European College of Neuropsychopharmacology (ECNP) Congress 2025 newron.com ↗
Additional post-hoc analyses from data of these studies further support the unique long-lasting efficacy of evenamide.
2025-09-05 Newron Pharmaceuticals SPA Results Newron to present data and updates on its clinical program evaluating evenamide as an add-on treatment for schizophrenia at the 2025 World Congress of Biological Psychiatry (WCBP) newron.com ↗
The results of Study 008A indicate for the first time that glutamate modulation, in this case through addition of evenamide, is associated with clinically meaningful and statistically significant efficacy.
2025-08-11 Newron Pharmaceuticals SPA Results Newron notes the publication of new preclinical research suggesting evenamide ameliorates schizophrenia-related dysfunction newron.com ↗
2025-05-12 Newron Pharmaceuticals SPA Regulatory Newron announces approval for pivotal Phase III ENIGMA-TRS program with evenamide as add-on therapy in patients with treatment-resistant schizophrenia (TRS) newron.com ↗
today announced the approval for its pivotal ENIGMA-TRS Phase III development program evaluating evenamide as an add-on therapy to current antipsychotics, including clozapine, in patients with treatment-resistant schizophrenia (TRS).
2024-06-25 Newron Pharmaceuticals SPA Results Newron Pharmaceuticals reports on its 2024 Investor Day in New York City newron.com ↗
Long-term benefits of evenamide as an add-on therapy were presented: 25% of treated patients met the criteria for remission suggesting evenamide may positively affect the long-term course of schizophrenia in TRS patients
2024-05-13 Newron Pharmaceuticals SPA Results Newron reports compelling additional data documenting the efficacy of evenamide in pivotal study 008A in poorly responding schizophrenia patients newron.com ↗
Newron Pharmaceuticals S.p.A. (“Newron”) (SIX: NWRN, XETRA: NP5), a biopharmaceutical company focused on the development of novel therapies for patients with diseases of the central and peripheral nervous system (CNS), presents additional results from the international, randomized, double-blind, placebo-controlled study 008A that evaluated the efficacy and safety of evenamide (30 mg bid) as add-on treatment in 291 patients not benefitting from their second-generation antipsychotic medication, including clozapine.
2024-04-30 Newron Pharmaceuticals SPA Results Newron announces positive top-line results from potentially pivotal Phase II/III study 008A with evenamide in schizophrenia patients newron.com ↗
The study met its primary endpoint of improvement on the Positive and Negative Syndrome Scale (PANSS) Total Score as well as the key secondary endpoint of improvement of the Clinical Global Impression of Severity (CGI-S).
2024-04-08 Newron Pharmaceuticals SPA Results Data from Newron’s study 014/015 and an evenamide clinical development outlook presented at the 2024 Annual Congress of the Schizophrenia International Research Society (SIRS) newron.com ↗
Treatment with evenamide was associated with sustained, clinically significant benefit that increased throughout the one-year course of treatment.
2024-01-04 Newron Pharmaceuticals SPA Results Newron reports exceptional one-year results of study 014/15 with evenamide in treatment-resistant schizophrenia (TRS) newron.com ↗
The data demonstrated that treatment with evenamide was associated with sustained clinically significant benefit that increased throughout the one-year course of treatment.
2023-10-09 Newron Pharmaceuticals SPA Results Newron TRS study 6 months’ results: Evenamide substantially improves patients to an extent that they no longer meet protocol entry criteria newron.com ↗
The data, which demonstrated that evenamide treatment was associated with an increasing, sustained, and clinically significant improvement of symptoms were presented at the 36th European Clinical Neuropsychopharmacology Congress (ECNP) in Barcelona, Spain.

All press releases naming this drug 41 releases

DateIssuerRelease

Evidence & citations 7 cited values

Every value below carries the sentence it was read from. 6 sources stand behind the page.

FieldValueCited text
Known as Evenamide ClinicalTrials.gov intervention name — accepted as the source's own label NCT04461119 ↗
2

NCT03446274 ↗

NCT07184619 ↗

Known as Evenamida ChEMBL registry synonym — accepted as the source's own label CHEMBL3678076 ↗
Known as Nw-3509 ChEMBL registry synonym — accepted as the source's own label CHEMBL3678076 ↗
Known as NW-3509A ClinicalTrials.gov intervention name — accepted as the source's own label NCT02624167 ↗
1

NCT01955564 ↗

Action Inhibit “potently blocks voltage-gated sodium channels (VGSCs) in vitro” NCT03446274 ↗
Modality Small molecule “orally available small molecule” NCT03446274 ↗
Route Oral “single escalating oral doses of NW-3509A” NCT01955564 ↗