NCT07656142

Brief Summary

This study will test whether a personalized mobile application that provides temperature-related health risk warnings and protective recommendations can reduce acute exacerbations in people with chronic obstructive pulmonary disease (COPD). Researchers will compare participants who receive the mobile application in addition to usual care with those who receive usual care alone. The main question is whether the mobile application reduces the number of COPD acute exacerbation events over 12 months. The study will also evaluate secondary outcomes including quality of life, functional capacity, symptoms, psychological status, physiological and biochemical indicators, environmental temperature risk perception, and participants' use of the mobile application.

Trial Health

65
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
240

participants targeted

Target at P75+ for not_applicable chronic-obstructive-pulmonary-disease

Timeline
12mo left

Started Jun 2026

Status
not yet recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress14%
Jun 2026Aug 2027

Study Start

First participant enrolled

June 1, 2026

Completed
8 days until next milestone

First Submitted

Initial submission to the registry

June 9, 2026

Completed
9 days until next milestone

First Posted

Study publicly available on registry

June 18, 2026

Completed
1.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 1, 2027

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

August 1, 2027

Last Updated

June 18, 2026

Status Verified

June 1, 2026

Enrollment Period

1.2 years

First QC Date

June 9, 2026

Last Update Submit

June 14, 2026

Conditions

Keywords

COPDTemperature-related Health RiskMobile Application Intervention

Outcome Measures

Primary Outcomes (1)

  • Number of COPD Acute Exacerbations

    Total number of acute exacerbations of COPD managed at home, via outpatient visits, emergency department visits, or hospitalizations.

    12 months after baseline

Secondary Outcomes (20)

  • Number of Home-managed COPD Acute Exacerbations

    6 and 12 months after baseline

  • Number of Outpatient-managed COPD Acute Exacerbations

    6 and 12 months after baseline

  • Number of Emergency Department-managed COPD Acute Exacerbations

    6 and 12 months after baseline

  • Number of Hospitalized COPD Acute Exacerbations

    6 and 12 months after baseline

  • Changes in St. George's Respiratory Questionnaire for COPD Patients Score

    3, 6, 9, and 12 months after baseline

  • +15 more secondary outcomes

Study Arms (2)

Personalized Temperature Risk Intervention + Usual COPD Care

EXPERIMENTAL
Other: Mobile Application-Based Personalized Temperature Health Risk Early Warning Intervention

Usual COPD Care

NO INTERVENTION

Interventions

This study implements a digital early warning intervention targeting personalized temperature-related health risks. The mobile application integrates real-time meteorological data and individual characteristics to generate risk levels and deliver tailored health alerts and guidance aimed at supporting risk management and reducing exposure-related health risks.

Personalized Temperature Risk Intervention + Usual COPD Care

Eligibility Criteria

Age40 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Tertiary hospitals;
  • Hospitals with respiratory wards that admit patients with COPD;
  • Hospitals with a well-established electronic health record system and follow-up capability;
  • Hospitals able to assign a study coordinator.
  • Age \>=40 years and \<=80 years, with no restriction on sex;
  • Patients with stable chronic obstructive pulmonary disease;
  • At least 1 severe acute exacerbation requiring hospitalization, or at least 2 moderate acute exacerbations requiring outpatient or emergency care, within the previous year;
  • Local permanent residents with a duration of residence \>=6 months;
  • Patients who voluntarily agree to participate, are expected to have good adherence, are able to sign informed consent;
  • Patients who own a smartphone or other smart device.

You may not qualify if:

  • Primary hospitals or private hospitals;
  • Hospitals unable to cooperate with the study protocol.
  • Patients with asthma;
  • Women who are known to be pregnant or breastfeeding, or who have a positive pregnancy test before cluster randomization;
  • Patients with other diseases that may affect participation in the trial, such as refractory hypertension or severe aphasia;
  • Patients currently receiving psychiatric or psychological treatment that may contaminate study results;
  • Expected survival time \<1 year, such as in those with malignant tumors or severe cardiopulmonary disease;
  • Participation in other interventional clinical studies that may affect outcome assessment;
  • Any other circumstances in which the investigator considers the patient unsuitable for participation in this study or at significant risk, such as cognitive impairment preventing understanding of and/or compliance with study procedures and/or follow-up.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Pulmonary Disease, Chronic Obstructive

Condition Hierarchy (Ancestors)

Lung Diseases, ObstructiveLung DiseasesRespiratory Tract DiseasesChronic DiseaseDisease AttributesPathologic ProcessesPathological Conditions, Signs and Symptoms

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Masking Details
Due to the cluster design and the nature of the mobile application intervention, study participants and research staff who collect visit data will be unmasked. However, data analysts and members of the endpoint adjudication committee will remain masked to the randomization assignments.
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER GOV
Responsible Party
SPONSOR INVESTIGATOR
PI Title
professor

Study Record Dates

First Submitted

June 9, 2026

First Posted

June 18, 2026

Study Start

June 1, 2026

Primary Completion (Estimated)

August 1, 2027

Study Completion (Estimated)

August 1, 2027

Last Updated

June 18, 2026

Record last verified: 2026-06