Evaluation of a notification by insurer to pharmacy for patients taking multiple duplicate medications medications - Cluster Randomized Trial -

Evaluation of a notification by insurer to pharmacy for patients taking multiple duplicate medications - Quadruple-Blinded, Pragmatic Cluster Randomized Trial - - Evaluation of a notification by insurer to pharmacy for patients taking multiple duplicate medications - Quadruple-Blinded, Pragmatic Cluster Randomized Trial -

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000041532

Enrollment

4968

Registered

2020-08-31

Start date

2020-09-01

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

Medication use

Interventions

sending a notification and easy questionnaire in end of August, 2020, to pharmacies in Fukuoka prefecture which are dispensing duplicate medications for their patients. Patients were detected by medic

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: we recruited a pharmacy which is dispensing patients who taking multiple duplicate medications. the inclusion criteria of patients are below, 1. 20>=, 74<= 2. visiting pharmacy in Fukuoka 3. In the same month, at least more than 3 duplicated medications which is prescribed intaking medicine over 30days and dispensed at same pharmacy. The duplication is defined by head 4 number of YJ-code (drug code in Japan) is same in each drugs.

Exclusion criteria

Exclusion criteria: the Exclusion criteria is below, 1. prescribed and dispensed in hospital (without pharmacy), not intaking drugs.

Design outcomes

Primary

Measure	Time frame
improvement multiple duplicate medications	—

Countries

Japan

Contacts

Public ContactYoshiyuki Saito

University of Tokyo Department of Health Economics & Outcomes Research, Graduate School of Pharmaceutical Sciences

saaito.yoshiyuki.86x@kyoto-u.jp0358414828

Outcome results

None listed

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