A multicenter single-arm study to evaluate physicians' and patients' acceptability of a heart failure app that empowers toward better communication.

A multicenter single-arm study to evaluate physicians' and patients' acceptability of a heart failure app that nudges toward optimal medical therapy and overcomes clinical inertia. - A multicenter single-arm study to evaluate physicians' and patients' acceptability of a heart failure app that nudges toward optimal medical therapy and overcomes clinical inertia.

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000050520

Enrollment

Registered

2023-03-31

Start date

2023-04-13

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

Heart failure with reduced ejection fraction(HFrEF)

Interventions

Use of a smartphone app that supports physicians and patients to efficiently discuss their heart failure medication regimen.

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1.left ventricular ejection fraction (LVEF) of 40% or less on the most recent cardiology imaging study (at least within 1 year at the time of inclusion) 2.regularly visiting their cardiology outpatient clinic at intervals of approximately 28-56 days. 3.not receiving their Guideline Directed Medical Therapy at the maximum recommended dose described in the guidelines published by the Japanese Circulation Society. 4.can provide written consent to participate in the study of his/her own free will.

Exclusion criteria

Exclusion criteria: 1.considered unable to use a smartphone. 2.unable to read Japanese 3.prognosis expected to be less than 1 year 4.receiving intravenous inotropic drugs 5.last laboratory value(at least within 3 months from the day of inclusion) of eGFR less than 15 mL/min/1.73 m2 6.equipped with a Left Ventricular Assist Device (LVAD) 7.NYHA classIV heart failure 8.on the waiting list for heart transplantation 9.pregnant, suspected to be pregnant, or lactating woman 10.judged by the investigator to be ineligible for participation in this study.

Design outcomes

Primary

Measure	Time frame
The percent of days the patient entered their health records in the app from the first day of app use to day 28.	—

Secondary

Measure	Time frame
1)Percentage of patients who had an initiation/intensification of GDMT at the first outpatient visit after inclusion. 2)Percentage of patients who had a reduction of GDMT at the first outpatient visit after inclusion. 3)SUS(system usability score) of the app 4)Qualitative details of the software malfunction 5)Patients' qualitative opinions on the app	—

Countries

Japan

Contacts

Public ContactKosuke Hayashi

Oita University Faculty of Medicine Department of Clinical Pharmacology and Therapeutics

khayashi@oita-u.ac.jp0975865952

Outcome results

None listed

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

A multicenter single-arm study to evaluate physicians&#39; and patients&#39; acceptability of a heart failure app that empowers toward better communication.