臨床研究等提出・公開システム

Date of registration	June. 16, 2026
Last modified on	June. 16, 2026
Trial ID	jRCT1030260229

Scientific Title	Incidence Study of Autism Spectrum Disorder and Attention-Deficit/Hyperactivity Disorder Using an Anonymous Medical Insurance-Related Information Database
Public Title	Incidence Study of Autism Spectrum Disorder and Attention-Deficit/Hyperactivity Disorder

Contact for Scientific Queries	Name	Sasayama Daimei
	Affiliation	Shinshu University
	Address	Matsumoto
	Telephone	+81-263372638
	E-mail	sasayama@shinshu-u.ac.jp
Contact for Public Queries	Name	Sasayama Daimei
	Affiliation	Shinshu University
	Address	Matsumoto
	Telephone	+81-263372638
	E-mail	sasayama@shinshu-u.ac.jp

Recruitment status	Recruiting

Anticipated date of first enrollment		June. 16, 2026
Actual date of first enrollment		June. 17, 2026
Target sample size		999999
Study Type		Observational
Study Design	allocation	single arm study
	masking	open(masking not used)
	control	uncontrolled control
	assignment	single assignment
	purpose	other
Key inclusion & exclusion criteria	Inclusion Criteria	Persons who have disease codes corresponding to Autism Spectrum Disorder or Attention-Deficit/Hyperactivity Disorder (excluding suspected diagnoses) in the medical claims (receipt) data from April 2009 through March 2024.
	Exclusion Criteria	None
	Age Minimum	No limit
	Age Maximum	No limit
	Gender	Both
Health Condition(s) or Problem(s) Studied		None
Health Condition(s) Code		N/A
Primary Outcome(s)		Number of autism spectrum disorder and attention-deficit/hyperactivity disorder diagnoses

Primary Sponsor	None

Secondary Sponsor

Source of Monetary Support	Ministry of Health, Labour and Welfare
Secondary Sponsor	Not applicable

Name of Certified Review Board	Shinshu University Life Science and Medical Sciences Research Ethics Committee
Address	3-1-1 Asahi, Matsumoto, Nagano
Telephone	+81-263-37-2572
E-Mail	md_rinri@shinshu-u.ac.jp
Approval Status	Approval
Date of approval	July. 22, 2024

Plan to share IPD	No

Countries of Recruitment（Except Japan）	none