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Study on concomitant use of memantine and antipsychotic drugs in patients with Alzheimer's disease

Study on concomitant use of memantine and antipsychotic drugs in patients with Alzheimer's disease - Study on concomitant use of memantine and antipsychotic drugs in patients with Alzheimer's disease

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
JPRN
Registry ID
JPRN-UMIN000026924
Enrollment
200
Registered
2017-04-10
Start date
2017-03-06
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

Alzheimer&#39

Interventions

None listed

Sponsors

Nihon University School of Medicine
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Patients of the Nihon University hospital, that were prescribed anti-Alzheimer drugs memantine hydrochloride, donepezil hydrochloride, galantamine hydrobromide or rivastigmine, between January 1, 2010 and September 30, 2016. (1) Patients with medical records during the research period (January 1, 2010 - September 30, 2016) (2) Patients to whom memantine hydrochloride, donepezil hydrochloride, galantamine hydrobromide or rivastigmine is prescribed. (3) Patients who are 60 years of age or older at the time of "initial prescription" where initial prescription" is defined as the earliest prescription of one of the said Alzheimer drugs 52 or more weeks after the eligibility judgement date earlier day with a medical record within the research period.

Exclusion criteria

Exclusion criteria: (1) Patients without a medical record between one day and 52 weeks before the date of initial prescription. (2) Patients whose initial prescription day is October 1, 2015 or later. (3) Patient who were prescribed an Anti-Alzheimer drug of the identical active ingredient between the day before to 52 weeks before the initial prescription date. (4) Lewy body type dementia patients. (5) Patients to whom memantine hydrochloride and cholinesterase inhibitor were initially prescribed on the same day. (6) Patients with PDC (proportion of days covered i.e. percentage of days prescribed during the survey period) less than 80%.

Design outcomes

Primary

MeasureTime frame
Temporal change in the percentage of patients to which psychotropic drugs (antipsychotic, antidepressant, antianxiety and hypnotic drugs) are prescribed from 52 weeks before the start of prescription to the day before the prescription of memantine hydrochloride start date, and from the start of prescription of memantine hydrochloride to 52 weeks after or end of exposure.

Secondary

MeasureTime frame
Temporal change in the percentage of patients to which psychotropic drugs (antipsychotic, antidepressant, antianxiety and hypnotic drugs) are prescribed from 52 weeks before the start of prescription to the day before the prescription of cholinesterase inhibitor start date, and from the start of prescription of cholinesterase inhibitor to 52 weeks after or end of exposure.

Countries

Japan

Contacts

Public ContactSatoshi Asai

Nihon University Medical Faculty Clinical Trial Center

asai.satoshi@nihon-u.ac.jp03-3972-8111(2770)

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026