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Pharmacological interventions
Adjunctive minocycline in schizophrenia: what one well-conducted study can tell us (and what it can’t)
  1. Marco Solmi1,2,
  2. Christoph U Correll3,4,5,6
  1. 1 Neuroscience Department, University of Padua, Padua, Italy
  2. 2 Neuroscience Centre, University of Padua, Padua, Italy
  3. 3 Psychiatry Research, Northwell Health, Zucker Hillside Hospital, Glen Oaks, New York, USA
  4. 4 Hofstra Northwell School of Medicine, Hempstead, New York, USA
  5. 5 The Feinstein Institute for Medical Research, Manhasset, New York, USA
  6. 6 Department of Child and Adolescent Psychiatry, Charité Universitätsmedizin, Berlin, Germany
  1. Correspondence to Dr Marco Solmi, Neuroscience Department, University of Padua, Padova 35122, Italy; marco.solmi83{at}gmail.com

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Commentary on: Deakin B, Suckling J, Barnes TRE, et al. The benefit of minocycline on negative symptoms of schizophrenia in patients with recent-onset psychosis (BeneMin): a randomised, double-blind, placebo-controlled trial. Lancet Psychiatry 2018;5:885–94.

What is already known on this topic

Minocycline has been proposed as treatment for negative symptoms in schizophrenia due to its neuroprotective and anti-inflammatory properties. In two recent meta-analyses1 2 of randomised controlled trials (RCTs), minocycline outperformed placebo regarding total, general and negative symptoms. However, negative results of a large RCT (BeneMin)3 have been recently published.

Methods of the study

Population: Patients with first-episode schizophreniform disorder, schizoaffective disorder or schizophrenia within 5 years of illness onset, mild to moderate severity and positive symptoms (Positive and Negative Symptoms Scale …

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