Updates for T1D Treatment in Pregnancy and Pediatrics
May 08, 07:30 PM
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Welcome back to Diabetes Dialogue: Technology, Therapeutics, & Real-World Perspectives!
In this episode of Diabetes Dialogue, cohosts Diana Isaacs, PharmD, and Natalie Bellini, DNP, discuss a slew of advances in diabetes technology and treatments, starting with the US Food and Drug Administration (FDA)’s recent approval of the Tandem automated insulin delivery system for use during pregnancy in individuals with type 1 diabetes.
The conversation centers on findings from the CIRCUIT trial, which demonstrated significant improvements in time in range among pregnant patients, a population historically challenging to manage because of stringent glycemic targets. Isaacs and Bellini review practical considerations from the study, including the use of continuous sleep mode to target tighter glucose ranges and proactive optimization of basal rates, correction factors, and carbohydrate ratios to improve outcomes. They emphasize that FDA approval now allows clinicians and manufacturers to openly discuss evidence-based best practices for pregnancy management using automated insulin delivery systems.
The hosts also highlight the importance of clinician comfort with aggressive insulin automation during pregnancy, noting that increased basal modulation, suspensions, and automated adjustments should be expected as physiologic insulin needs fluctuate throughout gestation. Bellini stresses the importance of reducing patient burden while maintaining intensive glycemic management, tying this theme into Tandem’s newly announced compatibility with the Dexcom G7 15-day sensor. Both hosts note strong patient enthusiasm for extending sensor wear time, framing reduced device maintenance as an important quality-of-life improvement even when the practical change appears modest.
The discussion then shifts to immunotherapy in type 1 diabetes, focusing on the expanded approval of teplizumab to include children as young as 1 year old for delaying progression from stage 2 to stage 3 disease. Isaacs and Bellini underscore how broader eligibility may strengthen adoption of autoantibody screening among relatives of patients with type 1 diabetes. They review evidence showing that screening substantially lowers rates of diabetic ketoacidosis at diagnosis and discuss the broader clinical significance of delaying symptomatic disease onset, even when delays are shorter than the median duration reported in trials. The hosts note that many families value the possibility of a more gradual transition into insulin dependence, often requiring only minimal insulin therapy initially rather than presenting with severe metabolic decompensation.
The conversation also addresses ongoing regulatory developments surrounding teplizumab for newly diagnosed stage 3 type 1 diabetes. Although the anticipated expedited review pathway has been withdrawn, the hosts remain optimistic about eventual approval, citing encouraging data and the growing role of precision medicine approaches in identifying patients most likely to benefit from immune intervention.
To conclude the episode, Isaacs and Bellini examine a post hoc analysis from the SURMOUNT-5 trial comparing tirzepatide and semaglutide in adults with obesity and prediabetes. They discuss findings showing high rates of reversion to normoglycemia in both treatment groups, with tirzepatide demonstrating greater efficacy overall. The hosts frame these data within the broader movement to reconceptualize prediabetes as an earlier stage of type 2 diabetes and cardiovascular disease risk rather than a benign precursor state. They emphasize the potential value of earlier therapeutic intervention to prevent progression and reduce long-term cardiometabolic complications while also acknowledging the importance of maintaining multiple treatment options because of variability in medication tolerability and patient response.
Editors’ Note: Isaacs reports disclosures with Dexcom, Abbott, Lilly, Novo Nordisk, Medtronic, Insulet, and others. Bellini reports disclosures with Abbott Diabetes Care, MannKind, Povention Bio, and others.
References
1: Tandem Diabetes Care. Tandem Diabetes Care’s Control-IQ+ Automated Insulin Delivery Technology Now FDA Cleared for Pregnancy in Type 1 Diabetes. April 27, 2026. Accessed May 8, 2026. https://investor.tandemdiabetes.com/news-releases/news-release-details/tandem-diabetes-cares-control-iq-automated-insulin-delivery
2: Sanofi. Press Release: Sanofi’s Tzield approved in the US to delay the onset of stage 3 type 1 diabetes in young children. April 22, 2026. Accessed May 8, 2026. https://www.sanofi.com/en/media-room/press-releases/2026/2026-04-22-05-05-00-3278650
3: Galindo RJ, Aronne LJ, Horn DB, et al. Reversion to normoglycemia with tirzepatide vs semaglutide in participants with obesity and prediabetes: a post hoc analysis of SURMOUNT-5. J Endocrinol Invest. Published online April 20, 2026. doi:10.1007/s40618-026-02895-3
In this episode of Diabetes Dialogue, cohosts Diana Isaacs, PharmD, and Natalie Bellini, DNP, discuss a slew of advances in diabetes technology and treatments, starting with the US Food and Drug Administration (FDA)’s recent approval of the Tandem automated insulin delivery system for use during pregnancy in individuals with type 1 diabetes.
The conversation centers on findings from the CIRCUIT trial, which demonstrated significant improvements in time in range among pregnant patients, a population historically challenging to manage because of stringent glycemic targets. Isaacs and Bellini review practical considerations from the study, including the use of continuous sleep mode to target tighter glucose ranges and proactive optimization of basal rates, correction factors, and carbohydrate ratios to improve outcomes. They emphasize that FDA approval now allows clinicians and manufacturers to openly discuss evidence-based best practices for pregnancy management using automated insulin delivery systems.
The hosts also highlight the importance of clinician comfort with aggressive insulin automation during pregnancy, noting that increased basal modulation, suspensions, and automated adjustments should be expected as physiologic insulin needs fluctuate throughout gestation. Bellini stresses the importance of reducing patient burden while maintaining intensive glycemic management, tying this theme into Tandem’s newly announced compatibility with the Dexcom G7 15-day sensor. Both hosts note strong patient enthusiasm for extending sensor wear time, framing reduced device maintenance as an important quality-of-life improvement even when the practical change appears modest.
The discussion then shifts to immunotherapy in type 1 diabetes, focusing on the expanded approval of teplizumab to include children as young as 1 year old for delaying progression from stage 2 to stage 3 disease. Isaacs and Bellini underscore how broader eligibility may strengthen adoption of autoantibody screening among relatives of patients with type 1 diabetes. They review evidence showing that screening substantially lowers rates of diabetic ketoacidosis at diagnosis and discuss the broader clinical significance of delaying symptomatic disease onset, even when delays are shorter than the median duration reported in trials. The hosts note that many families value the possibility of a more gradual transition into insulin dependence, often requiring only minimal insulin therapy initially rather than presenting with severe metabolic decompensation.
The conversation also addresses ongoing regulatory developments surrounding teplizumab for newly diagnosed stage 3 type 1 diabetes. Although the anticipated expedited review pathway has been withdrawn, the hosts remain optimistic about eventual approval, citing encouraging data and the growing role of precision medicine approaches in identifying patients most likely to benefit from immune intervention.
To conclude the episode, Isaacs and Bellini examine a post hoc analysis from the SURMOUNT-5 trial comparing tirzepatide and semaglutide in adults with obesity and prediabetes. They discuss findings showing high rates of reversion to normoglycemia in both treatment groups, with tirzepatide demonstrating greater efficacy overall. The hosts frame these data within the broader movement to reconceptualize prediabetes as an earlier stage of type 2 diabetes and cardiovascular disease risk rather than a benign precursor state. They emphasize the potential value of earlier therapeutic intervention to prevent progression and reduce long-term cardiometabolic complications while also acknowledging the importance of maintaining multiple treatment options because of variability in medication tolerability and patient response.
Editors’ Note: Isaacs reports disclosures with Dexcom, Abbott, Lilly, Novo Nordisk, Medtronic, Insulet, and others. Bellini reports disclosures with Abbott Diabetes Care, MannKind, Povention Bio, and others.
References
1: Tandem Diabetes Care. Tandem Diabetes Care’s Control-IQ+ Automated Insulin Delivery Technology Now FDA Cleared for Pregnancy in Type 1 Diabetes. April 27, 2026. Accessed May 8, 2026. https://investor.tandemdiabetes.com/news-releases/news-release-details/tandem-diabetes-cares-control-iq-automated-insulin-delivery
2: Sanofi. Press Release: Sanofi’s Tzield approved in the US to delay the onset of stage 3 type 1 diabetes in young children. April 22, 2026. Accessed May 8, 2026. https://www.sanofi.com/en/media-room/press-releases/2026/2026-04-22-05-05-00-3278650
3: Galindo RJ, Aronne LJ, Horn DB, et al. Reversion to normoglycemia with tirzepatide vs semaglutide in participants with obesity and prediabetes: a post hoc analysis of SURMOUNT-5. J Endocrinol Invest. Published online April 20, 2026. doi:10.1007/s40618-026-02895-3