Optimizing Asthma Treatment with an Asthma App:

A Multicenter Prospective Study Aimed at Improving Symptom Control - APP-ACT study(App-based Optimization of Asthma Control)

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000059258

Enrollment

Registered

2025-10-25

Start date

2026-01-01

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

bronchial asthma

Interventions

Method 1) For patients with poorly controlled asthma who consent during their visit, install the 3H P-Guardian app from the Google Play Store/iPhone App Store. Information is shared with the medical

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. Patients with poorly controlled asthma (ACT score <20) undergoing outpatient treatment who use an asthma management app during the period from January 1, 2026, to December 31, 2026. 2. Patients aged 18 years or older. 3. Patients who can provide informed consent to participate in the trial of their own free will.

Exclusion criteria

Exclusion criteria: 1. Patients who declined to participate in this study 2. Patients deemed unsuitable for this study by the principal investigator 3. Patients participating in other clinical trials of drugs or medical devices

Design outcomes

Primary

Measure	Time frame
Change in ACT Scores: Average change in ACT scores from the start of app use to 6 months later	—

Secondary

Measure	Time frame
Frequency of asthma exacerbations over 6 months Frequency of oral steroid rescue medication use over 6 months Change in AHQ-33 JAPAN score over 6 months Change in adherence rate for regular inhaled and oral medications based on app records Frequency of emergency/out-of-hours outpatient visits and hospitalizations: Number of emergency/out-of-hours outpatient visits and hospitalizations over 6 months Change in maintenance oral steroid dosage over 6 months Frequency of asthma exacerbations over 6 months Frequency of oral steroid rescue medication use over 6 months Change in AHQ-33 JAPAN score over 6 months Change in adherence rate to regular inhaled and oral medications based on app records Frequency of emergency/after-hours outpatient visits and hospitalizations: Number of emergency/after-hours outpatient visits and hospitalizations over 6 months Change in maintenance oral steroid dosage over 6 months	—

Measure

Time frame

Frequency of asthma exacerbations over 6 months Frequency of oral steroid rescue medication use over 6 months Change in AHQ-33 JAPAN score over 6 months Change in adherence rate for regular inhaled and oral medications based on app records Frequency of emergency/out-of-hours outpatient visits and hospitalizations: Number of emergency/out-of-hours outpatient visits and hospitalizations over 6 months Change in maintenance oral steroid dosage over 6 months Frequency of asthma exacerbations over 6 months Frequency of oral steroid rescue medication use over 6 months Change in AHQ-33 JAPAN score over 6 months Change in adherence rate to regular inhaled and oral medications based on app records Frequency of emergency/after-hours outpatient visits and hospitalizations: Number of emergency/after-hours outpatient visits and hospitalizations over 6 months Change in maintenance oral steroid dosage over 6 months

—

Countries

Japan

Contacts

Public ContactYasuhiro Nakajima

Social Medical Foundation Society of St. Francis Himeji St. Mary's Hospital Respiratory Medicine

nakajima-y@himemaria.or.jp0792655111

Outcome results

None listed

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