Evidence map›Paper›PMID 39399570›Full record

ArticleNeurology. Clinical practice2025

Dissemination of VMAT-2 Inhibitors: A New Class Drug for Tardive Dyskinesia and Huntington Disease.

Erica Ma, Emma Krening, Michiko K Bruno

Abstract read
In one paragraph

Article in Neurology. Clinical practice, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Real-World Experiences with VMAT2 Inhibitors in Pediatric Hyperkinetic Movement Disorders.Tremor and other hyperkinetic movements (New York, N.Y.) · 2025
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors.

Erica MaUniversity of Hawaii at Manoa (EM, MKB); and The Queen's Medical Center (EK, MKB), Honolulu, HI.ORCID https://orcid.org/0000-0003-4759-2325
Emma KreningUniversity of Hawaii at Manoa (EM, MKB); and The Queen's Medical Center (EK, MKB), Honolulu, HI.ORCID https://orcid.org/0009-0007-1240-8651
Michiko K BrunoUniversity of Hawaii at Manoa (EM, MKB); and The Queen's Medical Center (EK, MKB), Honolulu, HI.ORCID https://orcid.org/0000-0001-6575-424X

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background and Objectives: In 2017, the FDA approved deutetrabenazine (AUSTEDO) for the treatment of tardive dyskinesia (TD) and chorea associated with Huntington disease (HD). Concurrently, valbenazine (INGREZZA) was approved specifically for TD. The adoption of new medications is influenced by various factors, including patient's medical needs, the prescriber's adoption of new practice, and external environmental factors (e.g., cost). Our analysis aims to examine the dissemination of 2 vesicular monoamine transporter 2 (VMAT-2) inhibitors, deutetrabenazine and valbenazine, in the market. Methods: In this cross-sectional study, we conducted a descriptive statistical analysis of the 2017-2020 prescription records for deutetrabenazine and valbenazine using the Centers for Medicare & Medicaid Services Medicare Provider Utilization and Payment Data: Part D Prescriber public use file. In addition, we linked this data set to the Open Payment database to analyze industry payments. Results: We identified a total of 3,706 deutetrabenazine prescribers and 4,895 valbenazine prescribers. Prescription volume (standardized 30-day prescription) increased annually across different specialties for both VMAT-2 inhibitors from 2017 to 2020. Neurologists were the highest contributors to deutetrabenazine prescriptions (N = 50,017; 35.2%), and psychiatrists were the highest contributors to valbenazine prescriptions (N = 77,799; 42.3%). A total of 1,217 deutetrabenazine physician prescribers (47.5%) and 1,509 valbenazine physician prescribers (49.7%) received industry payments from TEVA Pharmaceuticals and Neurocrine Biosciences, respectively. Receipt of industry payments was associated with higher prescription volume for both deutetrabenazine ( Discussion: The findings illustrate a yearly increase in Medicare prescription volume for deutetrabenazine and valbenazine after FDA approval, with neurologists and psychiatrists as primary prescribers of deutetrabenazine and valbenazine, respectively. There was a statistical difference in the prescription volume between those who received industry payments and those who did not, suggesting that receipt of payments may be associated with prescription volume. Nonconsulting services constituted the largest sum of industry payments for both medications. Further research exploring the causative factors of new medication uptake is needed to better understand how medications disseminate across the market.

Identifiers

PMID39399570
PMCPMC11464224

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.