Evidence map›Paper›PMID 31076875›Full record

Trial reportJournal of neurology2019

Real-world pharmacological treatment patterns of patients with young-onset Parkinson's disease in Japan: a medical claims database analysis.

Sachiko Kasamo, Masato Takeuchi, Masashi Ikuno, Yohei Kawasaki, Shiro Tanaka, Ryosuke Takahashi, Koji Kawakami

Abstract readPragmatic Clinical Trial
PubMed Publisher
In one paragraph

Trial report in Journal of neurology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
2.0field-weighted citation impact, top 14% of its field
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

18 citing papers in PubMed, 1 synthesis or guideline pooled it, 24 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Temporal evolution of antiparkinsonian drug prescription over 17 years: a real-world data analysis of Korean patients with Parkinson's disease.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2026
    Article
  4. Review
  5. Early-Onset Parkinson's Disease: Unique Features and Management Approaches.Current neurology and neuroscience reports · 2025
    Review
  6. Article
  7. Article
  8. Article
  9. Shaping the course of early-onset Parkinson's disease: insights from a longitudinal cohort.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2023
    Article
  10. Article
  11. Review
  12. Article
  13. Clinical epidemiology and pharmacoepidemiology studies with real-world databases.Proceedings of the Japan Academy. Series B, Physical and biological sciences · 2022
    Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. 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

7 authors at 1 institution in 1 country.

Sachiko KasamoDepartment of Pharmacoepidemiology, Graduate School of Medicine and Public Health, Kyoto University, Yoshida Konoecho, Sakyoku, Kyoto, 606-8501, Japan.
Masato TakeuchiDepartment of Pharmacoepidemiology, Graduate School of Medicine and Public Health, Kyoto University, Yoshida Konoecho, Sakyoku, Kyoto, 606-8501, Japan.
Masashi IkunoDepartment of Neurology, Graduate School of Medicine, Kyoto University, Yoshida Konoecho, Sakyoku, Kyoto, 606-8501, Japan.
Yohei KawasakiDepartment of Pharmacoepidemiology, Graduate School of Medicine and Public Health, Kyoto University, Yoshida Konoecho, Sakyoku, Kyoto, 606-8501, Japan.
Shiro TanakaDepartment of Clinical Biostatistics, Graduate School of Medicine and Public Health, Kyoto University, Yoshida Konoecho, Sakyoku, Kyoto, 606-8501, Japan.
Ryosuke TakahashiDepartment of Neurology, Graduate School of Medicine, Kyoto University, Yoshida Konoecho, Sakyoku, Kyoto, 606-8501, Japan.
Koji KawakamiDepartment of Pharmacoepidemiology, Graduate School of Medicine and Public Health, Kyoto University, Yoshida Konoecho, Sakyoku, Kyoto, 606-8501, Japan. kawakami.koji.4e@kyoto-u.ac.jp.ORCID http://orcid.org/0000-0002-7477-4071
Kyoto University · JP

Funding

Dainippon Sumitomo Pharma Collaborative research fund
6 · The paper itself

Abstract

introductionYoung-onset Parkinson's disease is reported to comprise 5-10% of all Parkinson's disease cases; however, as physicians encounter a limited number of these patients, their treatment patterns are still unclear.

methodsWe performed a descriptive study using the large Japanese medical claims database to describe the epidemiology and real-world pharmacological treatment patterns of newly diagnosed patients with young-onset Parkinson's disease. Patients aged 21-50 years in whom Parkinson's disease was newly diagnosed between January 1, 2005 and March 31, 2016 were included. We excluded individuals with Parkinson's-related diseases and those using antipsychotics to eliminate the possibility of drug-induced parkinsonism. The patients' demographics, comorbidities, prescribing patterns, and changes in levodopa equivalent daily dose were analyzed.

resultsWe identified 131 newly diagnosed young-onset Parkinson's disease patients (median age, 44.2 years). The most common comorbidities were depression (23.7%), hypertension (23.7%), and insomnia (22.9%). Of these patients, 122 were prescribed antiparkinson drugs. During the study period, the proportion of patients who were prescribed dopamine agonists, levodopa, and anticholinergics were 77.1%, 44.3%, and 27.5%, respectively. Dopamine agonists (49.2%) were most commonly prescribed initially, followed by anticholinergics (23.8%), levodopa (19.7%), and others (4.1%). The levodopa equivalent daily dose increased steadily with longer disease duration.

conclusionsDopamine agonists were most frequently prescribed during the study period and were the initial treatment of choice. We also observed a change in levodopa equivalent daily dose over the disease course. This study provides a descriptive overview of real-world prescribing patterns in young-onset Parkinson's disease patients.

Indexed as

Databases, FactualInsurance Claim ReviewAdultAge of OnsetAntiparkinson AgentsData ManagementFemaleFollow-Up StudiesHumansJapanLongitudinal StudiesMaleMiddle AgedParkinson DiseaseTreatment OutcomeYoung AdultAntiparkinson AgentsComorbiditiesLevodopa equivalent daily doseMedical claims databasePharmacological treatmentsYoung-onset Parkinson’s disease

Identifiers

PMID31076875
OpenAlexW2944211552

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.