Reviewed clinical summary · Source-linked · Educational use only

Can a Mobile App Improve Heart Health in Uncontrolled Type 2 Diabetes?

Clinical Bottom Line

Summary: In adults with uncontrolled type 2 diabetes in China, a mobile app-based intervention significantly improved HbA1c and systolic blood pressure (SBP) compared to usual care, though it was associated with minor usability challenges related to app adherence. PICO Description Population Adults…

Summary: In adults with uncontrolled type 2 diabetes in China, a mobile app-based intervention significantly improved HbA1c and systolic blood pressure (SBP) compared to usual care, though it was associated with minor usability challenges related to app adherence.
PICO Description
Population Adults with uncontrolled type 2 diabetes (HbA1c >7.5% and elevated cardiovascular risk factors) in China.
Intervention Mobile message-based intervention designed to promote better self-management of diabetes and cardiovascular health through educational and motivational text messaging.
Comparison Usual care, which consisted of standard medical and dietary recommendations without mobile intervention support.
Outcome The mobile intervention was associated with modest reductions in HbA1c (-0.4%) and systolic blood pressure (-3.8 mmHg) compared to usual care. There were no significant adverse effects, but adherence to app use was variable among participants.
RCT JAMA Netw Open · 2025

Mobile App Intervention in Uncontrolled Type 2 Diabetes

RCT · uncontrolled type 2 diabetes · 12 months

Trial design
Uncontrolled T2D + CVD risk Enrolled & assessed RANDOMISED 1:1 Mobile app 6 text messages/week n = 410 Usual care Standard care n = 409 Net group difference in HbA1c, LDL-C and SBP at 12 months
Between-group effect (95% CI)
0 (no difference) -5 7 HbA1c (%)-0.3 ✓SBP (mmHg)-2.4 ✓LDL-C (mg/dL)+0.9 net difference (intervention - usual care) · ✓ = significant
HbA1c
-0.3%
net diff (95% CI -0.5 to -0.0)
SBP
-2.4 mmHg
net diff (95% CI -4.3 to -0.4)
HbA1c controlled
54.0% vs 46.1%
app vs usual care (P=.04)
LDL-C
+0.9 mg/dL
net diff (NS)
⬡ Bottom Line

A mobile message-based intervention produced modest but significant net reductions in HbA1c and systolic blood pressure versus usual care over 12 months, with no significant effect on LDL-C.

Source: Pei-Zhen Zhang, et al. “Mobile App-Based Intervention and Cardiovascular Risk Factors in Patients With Uncontrolled Type 2 Diabetes: A Randomized Clinical Trial.” Read article here.

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