Evidence map›Paper›PMID 35304702›Full record

ReviewDrugs - real world outcomes2022

Context and Considerations for Use of Two Japanese Real-World Databases in Japan: Medical Data Vision and Japanese Medical Data Center.

Thomas Laurent, Jason Simeone, Ryohei Kuwatsuru, Takahiro Hirano, Sophie Graham, Ryozo Wakabayashi, Robert Phillips, Tatsuya Isomura

Abstract readReview
In one paragraph

Review in Drugs - real world outcomes, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 72 papers.

0numbers the graph read from it
0cells of the map it votes in
72citing 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

72 citing papers in PubMed.

  1. Article
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  5. Trends in Diagnosing Obesity: The CALOR Study.Obesity (Silver Spring, Md.) · 2026
    Article
  6. Article
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  13. Article
  14. Observational
  15. Article
  16. Review
  17. Article
  18. Article
  19. Article
  20. Observational

12 more citing papers are in PubMed but not listed here.

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

8 authors.

Thomas LaurentClinical Study Support Inc., 2F Daiei Bldg., 1-11-20 Nishiki, Naka-ku, Nagoya, 460-0003, Japan. thomas_laurent@jp-css.com.
Jason SimeoneFifth Floor, Real-World Evidence, Evidera, 500 Totten Pond Road, Waltham, MA, 02451, USA.
Ryohei KuwatsuruDepartment of Radiology, School of Medicine, Juntendo University, Hongo 2-1-1, Bunkyo-ku, Tokyo, 113-8421, Japan.
Takahiro HiranoClinical Study Support Inc., 2F Daiei Bldg., 1-11-20 Nishiki, Naka-ku, Nagoya, 460-0003, Japan.
Sophie GrahamReal-World Evidence, Evidera, The Ark, 2nd Floor, 201 Talgarth Road, London, W6 8BJ, UK.
Ryozo WakabayashiClinical Study Support Inc., 2F Daiei Bldg., 1-11-20 Nishiki, Naka-ku, Nagoya, 460-0003, Japan.
Robert PhillipsClinical Study Support Inc., 2F Daiei Bldg., 1-11-20 Nishiki, Naka-ku, Nagoya, 460-0003, Japan.
Tatsuya IsomuraClinical Study Support Inc., 2F Daiei Bldg., 1-11-20 Nishiki, Naka-ku, Nagoya, 460-0003, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In Japan, an increasing interest in real-world evidence for hypothesis generation and decision-making has emerged in order to overcome limitations and restrictions of clinical trials. We sought to characterize the context and concrete considerations of when to use Medical Data Vision (MDV) and JMDC databases, the main Japanese real-world data (RWD) sources accessible by pharmaceutical companies. Use cases for these databases, and related issues and considerations, were identified and summarized based on a literature search and experience-based knowledge. Studies conducted using MDV or JMDC were mostly descriptive in nature, or explored potential risk factors by evaluating associations with a target outcome. Considerations such as variable ascertainment at different time points, including issues relating to treatment identification and missing data, were highlighted for these two databases. Although several issues were commonly shared (e.g., only month of event occurrence reported), some database-specific issues were also identified and need to be accounted for. In conclusion, MDV and JMDC present limitations that are relatively typical of RWD sources, though some of them are unique to Japan, such as the identification of event occurrence and the inability to track patients visiting different healthcare settings. Addressing study design and careful result interpretation with respect to the specificities and uniqueness of the Japanese healthcare system is of particular importance. This aspect is especially relevant with respect to the growing global interest of conducting RWD studies in Japan.

Identifiers

PMID35304702
PMCPMC8932467

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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.