Journal article

N-Acetylcysteine (NAC) in Schizophrenia Resistant to Clozapine: A Double-Blind, Randomized, Placebo-Controlled Trial Targeting Negative Symptoms

E Neill, SL Rossell, C Yolland, D Meyer, C Galletly, A Harris, D Siskind, M Berk, K Bozaoglu, F Dark, OM Dean, PS Francis, D Liu, A Phillipou, J Sarris, DJ Castle

Schizophrenia Bulletin | Published : 2022

Abstract

Background and Hypothesis: Clozapine is the most effective antipsychotic for treatment-resistant schizophrenia, yet a significant proportion of individuals on clozapine continue to experience disabling symptoms, despite being treated with an adequate dose. There is a need for adjunct treatments to augment clozapine, notably for negative and cognitive symptoms. One such potential agent is the glutathione precursor N-acetylcysteine (NAC). Study Design: A randomized double-blind, multi-center, placebo-controlled trial for clozapine patients with enduring psychotic symptoms (n = 84) was undertaken to investigate the efficacy of adjunctive NAC (2 g daily) for negative symptoms, cognition and qual..

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