Randomized controlled study to evaluate the impact of flexible patient-controlled visits in people with type 1 diabetes: The DiabetesFlex Trial.

Aim: The objective of this study was to assess the impact of health care-initiated visits versus patient-controlled flexible visits on clinical and patient-reported outcomes in people with type 1 diabetes.

Methods: The DiabetesFlex trial was a randomized controlled, pragmatic non-inferiority 15-month follow-up study comparing standard care (face-to-face visits every 4 months) with DiabetesFlex (patient-controlled flexible visits using patient-reported, outcome-based telehealth follow-up). Of 343 enrolled participants, 160 in each group completed the study. The primary outcome was mean change in HbA from baseline to 15-month follow-up. Secondary outcomes were blood pressure, lipid levels, frequency of visits, the World Health Organization score-five well-being-index (WHO-5), the Problem Areas In Diabetes (PAID) scale and experience of participation in own care (participation score).

Results: The adjusted mean difference in HbA between standard care and DiabetesFlex was similar and below the predefined non-inferiority margin of 0.4% (-0.03% [95%CI: 0.15, 0.11]/-0.27 mmol/mol [-1.71, 1.16]). No intergroup mean changes in lipid or blood pressure were observed. Conversely, DiabetesFlex participants presented an increased mean WHO-5 index of 4.5 (1.3, 7.3), participation score of 1.1 (0.5, 2.0), and decreased PAID score of -4.8 (-7.1, -2.6) compared with standard care. During follow-up, DiabetesFlex participants actively changed 23% of face-to-face visits to telephone consultations, cancelled more visits (17% vs. 9%), and stayed away without cancellation less often (2% vs. 8%).

Conclusion: Compared with standard care, flexible patient-controlled visits combined with patient-reported outcomes in participants with metabolic controlled type 1 diabetes and good psychological well-being further improved diabetes-related well-being and decreased face-to-face visits while maintaining safe diabetes management.