A Retrospective Study to Identify Time to EOAD Diagnosis in Japan

A Retrospective Study to Identify Time to EOAD Diagnosis in Japan - A Retrospective Study to Identify Time to EOAD Diagnosis in Japan

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000052928

Enrollment

120

Registered

2023-11-28

Start date

2023-12-01

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

early-onset Alzheimer&#39

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1) Subjects receiving a diagnosis of "Probable AD dementia", "MCI due to AD", or an equivalent diagnosis at a given participating university hospital between April 2011 and March 2023. Subjects were included regardless of brain amyloid-beta pathology, typically confirmed via either imaging or CSF tests. 2) AD onset was between 18 to 79 years of age.

Exclusion criteria

Exclusion criteria: 1)Subjects whose onset or time of diagnosis could not be reliably identified. 2)Subjects with a diagnosis of dementia due to other neurodegenerative diseases.

Design outcomes

Primary

Measure	Time frame
To identify time to AD diagnosis in Japan.	—

Secondary

Measure	Time frame
To explore factors associated with diagnostic durations of AD in Japan.	—

Countries

Japan

Contacts

Public ContactKensaku Kasuga

Brain Research Institute, Niigata University Department of Molecular Genetics, Center for Bioresources

ken39@bri.niigata-u.ac.jp025-227-2344

Outcome results