NCT07825831

Brief Summary

This two-arm randomized controlled trial will evaluate whether an artificial intelligence-assisted personalized heat-risk alert system reduces heat-related illness symptom burden among adults with chronic conditions. The intervention will integrate prespecified clinical characteristics with the Pakistan Meteorological Department's same-day forecast maximum temperature to classify individual heat-related acute clinical-event risk and deliver personalized alerts through a mobile application. The control group will receive a generic PMD heat-health advisory through the same application.

Trial Health

77
On Track

Trial Health Score

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

Enrollment
120

participants targeted

Target at P50-P75 for not_applicable

Timeline
1mo left

Started Sep 2026

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
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 Progress56%
Sep 2026Oct 2026

Study Start

First participant enrolled

September 1, 2026

Completed
11 days until next milestone

First Submitted

Initial submission to the registry

September 12, 2026

Completed
5 days until next milestone

First Posted

Study publicly available on registry

September 17, 2026

Completed
26 days until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 13, 2026

Expected
17 days until next milestone

Study Completion

Last participant's last visit for all outcomes

October 30, 2026

Last Updated

September 23, 2026

Status Verified

September 1, 2026

Enrollment Period

1 month

First QC Date

September 12, 2026

Last Update Submit

September 18, 2026

Conditions

Keywords

Heat-Health Warning SystemsHeat-Related IllnessChronic DiseasesArtificial Intelligence

Outcome Measures

Primary Outcomes (1)

  • Heat-Related Illness Symptom Score (HRISS)

    The total HRISS score ranges from 0 to 20, based on 10 heat-related illness symptom items assessed for the preceding 7 days; higher scores indicate greater heat-related illness symptom burden. HRISS will be assessed at baseline and Week 6, with the primary analysis comparing Week-6 HRISS between groups after adjustment for baseline HRISS.

    Baseline and six weeks after randomization

Secondary Outcomes (3)

  • Heat-Health Protective Behavior Checklist (HPBC)

    Baseline and six weeks after randomization

  • Heat-Health Knowledge, Attitudes and Practices (KAP) Score

    Baseline and six weeks after randomization

  • Heat-related hospital admissions

    From randomization through six weeks

Study Arms (2)

AI-Assisted Personalized Heat-Risk Alert

EXPERIMENTAL

Participants will receive AI-assisted personalized heat-risk alerts through the patient-facing mobile application on days when the Pakistan Meteorological Department's same-day forecast maximum temperature is ≥36°C. A locked AI prediction model will integrate prespecified clinical characteristics and the same-day temperature forecast to classify heat-related acute clinical-event risk as low, moderate, or high. Risk-category-specific heat-health messaging will then be delivered through the application.

Behavioral: AI-Assisted Personalized Heat-Risk Alert System

Generic PMD Heat-Health Advisory

ACTIVE COMPARATOR

Participants will receive a generic Pakistan Meteorological Department heat-health advisory through the same patient-facing mobile application on days when the same-day forecast maximum temperature is ≥36°C. The control condition will not include AI-based risk stratification, individualized risk classification, or disease-specific personalization.

Behavioral: Generic PMD Heat-Health Advisory

Interventions

A mobile application-based heat-health alert system that uses a locked AI prediction engine to integrate prespecified individual clinical characteristics with the Pakistan Meteorological Department's same-day forecast maximum temperature (≥36°C) and classify participants into low, moderate, or high heat-related acute clinical-event risk categories. The application delivers corresponding personalized heat-health messages.

AI-Assisted Personalized Heat-Risk Alert

Generic Pakistan Meteorological Department heat-health advisory delivered through the same patient-facing mobile application when the same-day forecast maximum temperature is ≥36°C, without AI-based risk stratification or individualized clinical personalization.

Generic PMD Heat-Health Advisory

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Adults aged 18 years or older attending the outpatient department of the selected tertiary-care hospital during the recruitment period.
  • Have a documented diagnosis of at least one chronic non-communicable disease associated with increased susceptibility to heat-related illness, including hypertension, type 2 diabetes mellitus, chronic kidney disease, cardiovascular disease, or obesity (BMI ≥30 kg/m²).
  • Have access to a personal smartphone capable of receiving study heat-risk alert notifications.
  • Be able to read Urdu or English, or have a household member/caregiver available to read and explain study alerts when required.
  • Be willing and able to provide written informed consent.
  • Intend to remain within the study catchment area for the duration of the six-week study period to facilitate follow-up.

You may not qualify if:

  • Patients requiring immediate emergency treatment or hospital admission at the time of recruitment.
  • Individuals with severe cognitive impairment, dementia, psychotic illness, or another medical condition that limits their ability to understand study procedures or provide informed consent.
  • Patients with terminal illness or those receiving palliative care.
  • Individuals with severe visual, hearing, or communication impairments that prevent effective receipt of the study alert intervention and outcome assessment without a reliable caregiver.
  • Pregnant women, because pregnancy has distinct physiological responses to heat exposure and would require separate clinical risk stratification beyond the scope of this study.
  • Participants currently enrolled in another clinical trial or structured behavioral intervention related to heat-health, climate adaptation, or chronic disease self-management.
  • Participants who are unable or unwilling to comply with study procedures or complete the required follow-up assessment.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

DHQ Teaching Hospital Gujranwala

Gujranwala, Punjab Province, 52250, Pakistan

RECRUITING

MeSH Terms

Conditions

Chronic Disease

Condition Hierarchy (Ancestors)

Disease AttributesPathologic ProcessesPathological Conditions, Signs and Symptoms

Study Officials

  • Shamaila Mohsin, PhD Public Health

    Armed Forces Post Graduate Medical Institute, AFPGMI, NUMS, Rawalpindi

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Mubra Noor, MS Public Health

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Masking Details
Statistical analyst: Masked where feasible
Purpose
SUPPORTIVE CARE
Intervention Model
PARALLEL
Model Details: Two-arm, parallel-group superiority randomized controlled trial with 1:1 allocation.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Head of Department (HoD), Public Health Department

Study Record Dates

First Submitted

September 12, 2026

First Posted

September 17, 2026

Study Start

September 1, 2026

Primary Completion (Estimated)

October 13, 2026

Study Completion (Estimated)

October 30, 2026

Last Updated

September 23, 2026

Record last verified: 2026-09

Data Sharing

IPD Sharing
Will not share

Individual participant-level data will not be made publicly available because the study involves sensitive clinical and health-related information from the participant population. Data will be retained and managed in accordance with the approved study protocol, institutional requirements, and applicable ethical and privacy requirements. De-identified aggregate findings will be reported in publications and other appropriate dissemination outputs.

Locations