Hey readers! 👋 This week's roundup is packed with tech updates that might actually change your daily routine, from Omnipod's algorithm getting a serious upgrade to MIT researchers working on a glucose monitor that doesn't require anything under your skin. Let's dive into what matters most for managing T1D right now.

🔬 This Week's Highlights

Goodbye, finger pricks? Diabetes patients could monitor glucose with lightwaves — MIT researchers have built a Raman spectroscopy device that measures blood glucose by shining near-infrared light on skin, no needles required. – Popular Science

The current prototype is about the size of a shoebox, but the team has already shrunk subsequent versions to cellphone dimensions. In preliminary testing, readings matched commercial CGMs over a four-hour period. "Nobody wants to prick their finger every day, multiple times a day," said MIT research scientist Jeon Woong Kang. A wearable version is headed for clinical trials next year. Worth watching, though we're still years away from something you could actually wear.

Insulet Announces FDA 510(k) Clearance of Omnipod 5 Algorithm Enhancements — The FDA has cleared significant upgrades to Omnipod 5, including a new 100 mg/dL target glucose setting and algorithm refinements that keep users in Automated Mode longer. – Biospace

This is the update many Omnipod users have been requesting. The new target range now spans six options from 100-150 mg/dL in 10 mg/dL increments. Real-world data shows the lower target improves time in range by roughly 12% without increasing hypoglycemia. The smoother algorithm means fewer interruptions during high-glucose events. Expect the update in the first half of 2026.

Medtronic launches insulin delivery system with Abbott-made sensor — Medtronic's MiniMed 780G is now available paired with Abbott's Instinct sensor, marking the first time Medtronic has integrated an external sensor into its system. – MedTech Dive

The Instinct sensor offers 15-day wear time, longer than any of Medtronic's current CGMs. This partnership became possible after FDA approval of Medtronic's algorithm as an interoperable automated glycemic controller. Medtronic is also developing a smaller MiniMed Flex pump that will work with the same sensor.

📊 Research Worth Knowing

New Stem Cell Approach Paves Way for Type 1 Diabetes Cure — A preclinical study demonstrates that a chemotherapy-free conditioning regimen can induce durable mixed haematopoietic chimerism in NOD mice, preventing and reversing T1D without ongoing immunosuppression. – EMJ Reviews

The protocol combines anti-c-Kit antibody, T-cell depletion, JAK1/2 inhibition, and low-dose total body irradiation. In diabetic mice, the regimen corrected hyperglycemia durably with no graft-versus-host disease. These findings suggest safer transplantation-based strategies for restoring immune tolerance may eventually be viable for humans.

Dermal Glucose Sensing has a Shorter Time Lag Relative to Blood Glucose — A clinical study found that dermal CGM sensors achieve a time lag of just 0-2 minutes, compared to the -10 to +10 minute lag seen in subcutaneous CGMs. – PubMed

The study compared a novel dermal sensor called Laxmi against Abbott Libre 3 and Dexcom G7 in 55 T1D patients. Simulations showed that shorter lag improves time-in-range and could enable lower glucose targets without increasing hypoglycemia risk. This could be significant for automated insulin delivery systems.

Variation in Hypoglycemia Risk During Real-World Physical Activity — Analysis of 8,171 exercise sessions found that hypoglycemia risk rises with longer duration, lower pre-exercise glucose, and higher insulin on board. – Type 1 Diabetes Exercise Initiative

Aerobic activities produced the greatest glucose reductions. Closed-loop users exhibited lower hypoglycemia risk compared to open-loop users. The data underscore the need for personalized strategies, not one-size-fits-all exercise recommendations.

💊 Treatment & Policy Updates

2025 Top T1D advances: Full speed ahead — Breakthrough T1D's year-end summary highlights cell therapy milestones, disease-modifying agents, and Civica's $55 insulin glargine launching January 1, 2026. – Sandy Vogt, Ph.D.

Notable mentions include Sana Biotechnology's gene-edited islets producing insulin without immunosuppression, baricitinib trials for delaying disease onset, and finerenone showing kidney-protective effects in T1D patients.

Immunosuppressants in T1D Research: Expert Opinions — Pharmacist Diana Isaacs explains how immunosuppressants work in islet cell research, their side effects, and efforts to eliminate their use through cell encapsulation. – T1D Exchange

"If you can use immunosuppressants for the short term, once you stop the medications, the risk of infections or other toxic effects on the kidneys or liver should generally resolve."

🔋 Quick Hits

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