Cited by 88Schizophrenia research and treatmentParkinson's Disease Mechanisms and TreatmentsNeurological disorders and treatments

Treatment of tardive dyskinesia with VMAT-2 inhibitors: a systematic review and meta-analysis of randomized controlled trials

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Solmi, Marco, Pigato, Giorgio, Kane, John M., Correll, Christoph·2018·Drug Design Development and Therapy

Abstract

Aim: The aim of this study was to summarize the characteristics, efficacy, and safety of vesicular monoamine transporter-2 (VMAT-2) inhibitors for treating tardive dyskinesia (TD). Materials and methods: We conducted a literature search in PubMed, Cochrane Database, and ClinicalTrials.gov , screening for systematic reviews, meta-analyses or double-blind, randomized, placebo-controlled trials (DBRPCTs) reporting efficacy or safety data of VMAT-2 inhibitors (tetrabenazine, deutetrabenazine, and valbenazine) in patients with TD. A random effects meta-analysis of efficacy and safety data from DBRPCTs was performed. Results: Two acute, 12-week DBRPCTs with deutetrabenazine 12–48 mg/day (n=413) and 4 acute, 4–6-week double-blind trials with valbenazine 12.5–100 mg/day (n=488) were meta-analyzable, without meta-analyzable, high-quality data for tetrabenazine. Regarding reduction in total Abnormal Involuntary Movement Scale (AIMS) scores (primary outcome), both deutetrabenazine (k=2, n=413, standardized mean difference [SMD] =-0.40, 95% confidence interval [CI] =-0.19, -0.62, p <0.001; weighted mean difference (WMD) =-1.44, 95% CI =-0.67, -2.19, p <0.001) and valbenazine (k=4, n=421, SMD =-0.58, 95% CI =-0.26, -0.91, p <0.001; WMD =-2.07, 95% CI =-1.08, -3.05, p <0.001) significantly outperformed placebo. Results were confirmed regarding responder rates (≥50% AIMS total score reduction; deutetrabenazine: risk ratio [RR] =2.13, 95% CI =1.10, 4.12, p =0.024, number-needed-to-treat [NNT] =7, 95% CI =3, 333, p =0.046; valbenazine: RR =3.05, 95% CI =1.81, 5.11, p <0.001, NNT =4, 95% CI =3, 6, p <0.001). Less consistent results emerged from patient-rated global impression-based response ( p =0.15) and clinical global impression for deutetrabenazine ( p =0.088), and for clinical global impression change for valbenazine ( p =0.67). In an open-label extension (OLE) study of deutetrabenazine (≤54 weeks) and a dose-blinded valbenazine study (≤48 weeks), responder rates increased over time. With valbenazine, discontinuation effects were studied, showing TD symptom recurrence towards baseline severity levels within 4 weeks after valbenazine withdrawal. No increased cumulative or specific adverse (AEs) events versus placebo (acute trials) in extension versus acute trial data were observed. Conclusion: The 2 VMAT-2 inhibitors, valbenazine and deutetrabenazine, are effective in treating TD, both acutely and long-term, without concerns about increased risk of depression or suicide in the TD population. No head-to-head comparison among VMAT-2 inhibitors and no high-quality, meta-analyzable data are available for tetrabenazine in patients with TD. Keywords: tetrabenazine, deutetrabenazine, valbenazine, tardive dyskinesia, VMAT-2

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Authors
Solmi, M., Pigato, G., Kane, J. M., & Correll, C.
Affiliations
  • University of Padua (IT)
  • Azienda Ospedale - Università Padova (IT)
  • Northwell Health (US)
Corresponding author
Correll, Christoph
Venue
Drug Design Development and Therapy
Published
2018-05
Volume
Volume 12
Pages
1215-1238
ISSN
1177-8881 (ISSN-L)
OpenAlex
W2801534436
Cited by
88
References
89
Citations by year
2026: 7 · 2025: 16 · 2024: 15 · 2023: 6 · 2022: 6 · 2021: 11 · 2020: 11 · 2019: 15 · 2018: 1
FWCI
1.44
Type
journal article
Language
en
Open access
Locations
  • Drug Design Development and Therapy (publishedVersion, cc-by-nc)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by-nc)
  • PubMed Central (publishedVersion, cc-by-nc)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Dove Medical Press (Taylor and Francis Group) (submittedVersion, cc-by-nc)
  • Padua Research Archive (University of Padova) (submittedVersion)
Funders
  • Bristol-Myers Squibb
  • Pfizer
  • Teva Pharmaceutical Industries
  • Sunovion
  • Les Laboratories Pierre Fabre
  • H. Lundbeck A/S
  • Allergan
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
  • Health Sciences › Medicine › Neurology › Parkinson's Disease Mechanisms and Treatments
  • Health Sciences › Medicine › Neurology › Neurological disorders and treatments
Keywords
tardive dyskinesia, deutetrabenazine, valbenazine, tetrabenazine, treatment efficacy, drug safety, adverse events, antipsychotic-induced movement disorders, antiparkinsonian drugs, responder rate, number needed to treat, number needed to harm, placebo comparison
MeSH terms
Tardive Dyskinesia, Humans, Tetrabenazine, Antipsychotic Agents, Valine, Randomized Controlled Trials as Topic, Vesicular Monoamine Transport Proteins

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