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Japanese Public Health Insurance System’s new genomic strategic action to shorten the “diagnostic odyssey” for patients with rare and intractable diseases

Abstract

In June 2024, the Japanese government introduced a new genomic strategic action to shorten the “diagnostic odyssey” for patients with rare and intractable diseases: Six groups of rare diseases, (i) Muscle weakness group, (ii) Growth retardation, intellectual disability, and characteristic facial features group, (iii) Intellectual disability/epilepsy group, (iv) Cardiomyopathy group (mainly adult onset) (v) Proteinuria group, (vi) Fever, inflammation, skin rash, osteoarthritis group, have been newly recognized as “difficult-to-differentiate disorders” and comprehensive genomic testing can be reimbursed when patients belong to one of the six groups and certain requirements are met. The introduction of comprehensive genomic testing will improve the diagnosis rate of diseases and have significant potential to enhance Japan’s rare and intractable disease policy. The new strategy in Japan and its rationale will be a reference for insurance reimbursement of comprehensive genomic testing in other countries that have universal health coverage supported by the public health insurance system.

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References

  1. Sawyer SL, Hartley T, Dyment DA, Beaulieu CL, Schwartzentruber J, Smith A, et al. Utility of whole-exome sequencing for those near the end of the diagnostic odyssey: time to address gaps in care. Clin Genet. 2016;89:275–84.

    Article  CAS  PubMed  Google Scholar 

  2. Bauskis A, Strange C, Molster C, Fisher C. The diagnostic odyssey: insights from parents of children living with an undiagnosed condition. Orphanet J Rare Dis. 2022;17:233.

    Article  PubMed  PubMed Central  Google Scholar 

  3. Hayashi S, Umeda T. 35 years of Japanese policy on rare diseases. Lancet. 2008;372:889–90.

    Article  PubMed  Google Scholar 

  4. Kanatani Y, Tomita N, Sato Y, Eto A, Omoe H, Mizushima H. National registry of designated intractable diseases in Japan: present status and future prospects. Neurol Med Chir (Tokyo). 2017;57:1–7.

    Article  PubMed  Google Scholar 

  5. Act on Medical Care for Patients with Intractable Diseases, Act No. 50 of May 30, 2014, Government of Japan. Available from: https://www.japaneselawtranslation.go.jp/ja/laws/view/3363.

  6. Specific Issue No.19, Central Social Insurance Medical Council, Dec 22, 2023 (in Japanese). Available from: https://www.mhlw.go.jp/content/12404000/001181965.pdf.

  7. Ikegami N. Japan: achieving UHC by regulating payment. Glob Health. 2019;15:72.

    Article  Google Scholar 

  8. Health Insurance Act, Act No. 70 of April 22, 1922. Available from: https://www.japaneselawtranslation.go.jp/ja/laws/view/3266.

  9. Takahashi Y, Mizusawa H. Initiative on rare and undiagnosed disease in Japan. JMA J. 2021;4:112–8.

    Article  PubMed  PubMed Central  Google Scholar 

  10. JSHG/JSGC/JSGDT 2023 Guideline on the Genetic Testing for Designated Intractable Diseases (in Japanese). Available from: https://jshg.jp/news/8958/.

  11. JSHG/JSGC/JSGDT 2023 Guidance for Variant Interpretation in Rare Diseases Using Next-Generation Sequencers (NGS) (in Japanese). Available from: https://jshg.jp/news/8295/.

  12. Hijikata A, Suyama M, Kikugawa S, Matoba R, Naruto T, Enomoto Y, et al. Exome-wide benchmark of difficult-to-sequence regions using short-read next-generation DNA sequencing. Nucleic Acids Res. 2024;52:114–24.

    Article  PubMed  Google Scholar 

  13. Zook JM, Catoe D, McDaniel J, Vang L, Spies N, Sidow A, et al. Extensive sequencing of seven human genomes to characterize benchmark reference materials. Sci Data. 2016;3:160025.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  14. Kamada M, Nakatsui M, Kojima R, Nohara S, Uchino E, Tanishima S, et al. MGeND: an integrated database for Japanese clinical and genomic information. Hum Genome Var. 2019;6:53.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  15. Tadaka S, Kawashima J, Hishinuma E, Saito S, Okamura Y, Otsuki A, et al. jMorp: Japanese Multi-Omics Reference Panel update report 2023. Nucleic Acids Res. 2024;52:D622–32.

    Article  PubMed  Google Scholar 

  16. A guideline for third-party data provision on the National Registry of Designated Intractable Disease (in Japanese). Available from: https://www.mhlw.go.jp/content/10900000/001260002.pdf.

  17. A contact information for third-party data provision on the National Registry of Designated Intractable Disease (in Japanese). Available from: https://www.mhlw.go.jp/stf/nanbyou_teikyo.html.

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Correspondence to Jiro Ezaki.

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Ezaki, J., Takahashi, Y., Saijo, H. et al. Japanese Public Health Insurance System’s new genomic strategic action to shorten the “diagnostic odyssey” for patients with rare and intractable diseases. J Hum Genet 69, 549–552 (2024). https://doi.org/10.1038/s10038-024-01285-y

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