Flash glucose monitoring system (FGMS) may empower people with prediabetes to become more aware of their glucose impairment, allowing timely lifestyle modification and diabetes prevention. This study aimed to evaluate the feasibility and acceptability of wearing FGMS sensors in people with prediabetes.

We conducted a single-arm, prospective study in two federally qualified health center sites where people with prediabetes were invited to wear FGMS sensors for 28 days through provider referral. Participants with contraindications to wearing sensors were excluded. Feasibility was measured through recruitment rate and total days of sensor wear. Acceptability was measured through a semi-structured interview conducted at the end of the study.

Between July and Dec 2021, a total of 135 eligible participants were identified and referred, of which 46 were uncontactable, 13 were undecided and 45 declined due to disinterest or lack of time, leaving a total of 31 subjects (17 males, 14 females) entering the study. The mean age and duration of prediabetes were 52 and 1.5 years, respectively. The average duration of sensor wear was 25 days. All subjects completed the semi-structured interview with 29 (95%) subjects recommending sensor wear for people with prediabetes.

In conclusion, our study showed that wearing FGMS sensors appeared receptive, with 1 in every 3 contactable persons with prediabetes willing to wear FGMS sensors and reporting positive behavior change.


J. Y. Lee: None. J. T. Nguyen: None. J. Arroyo: None. T. Tran: None. D. Hanami: None. J. Mayorga: None.


National Center for Research Resources and the National Center for Advancing Translational Sciences, National Institutes of Health (UL1 TR0001414) . The content is solely the responsibility of the authors and does not necessarilyrepresent the official views of the NIH.

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