The edition · Diabetes & Endocrinology
Once a week is enough for the ketone strip
A modelling study on 1410 trial participants says weekly well-day ketone testing predicts a month's ketoacidosis risk as well as twice-weekly does; 179 of 180 ketoacidosis events in DCCT happened after C-peptide had gone; and compounded semaglutide vials are being recalled for particulate matter.
The edition in brief
Four findings for diabetes practice. Using the EASE 2 and EASE 3 trial repository of 1410 participants with type 1 diabetes, investigators simulated different frequencies of well-day capillary ketone testing over a month to predict ketoacidosis or severe ketosis in the following month. Once-weekly testing was the lowest frequency that preserved accuracy against a twice-weekly baseline - area under the curve 0.692 against 0.678 for the maximum-ketone model and 0.719 against 0.711 for a gradient-boosted tree, neither difference significant. In the DCCT repository, 1441 participants had 180 ketoacidosis events over an average 6.5 years; 179 of them occurred after stimulated C-peptide had fallen to 0.2 nmol/mL or below, and detectable C-peptide carried a hazard ratio of 0.07 (95% CI 0.01 to 0.48). The FDA has a Class II recall running on multiple compounded semaglutide multi-dose vials from a single US compounding firm, for particulate matter identified as nylon or polyamide and silk or proteinaceous material. A single-centre study of 68 people found that starting the Omnipod 5 hybrid closed loop in impaired awareness of hypoglycaemia reduced time below range from 2.8% to 1.7% and weekly sensor-detected hypoglycaemia episodes from 5.4 to 4.0, but at twelve months the burden remained about double that of matched people with normal awareness. And a multidisciplinary group has set out a roadmap for getting SGLT inhibitors licensed for heart and kidney protection in type 1 diabetes, arguing that surrogate endpoints could make registrational trials feasible provided ketoacidosis safety protocols are properly evaluated.
Weekly ketone testing predicts as well as twice weekly
Once-weekly well-day capillary ketone testing predicted the next month's ketoacidosis risk as well as twice-weekly testing (AUC 0.692 vs 0.678, P=0.19), halving the burden for no measurable loss of accuracy.
Ketoacidosis waits until the last C-peptide has gone
179 of 180 ketoacidosis events in DCCT occurred after stimulated C-peptide had fallen to 0.2 nmol/mL or below; detectable C-peptide carried a hazard ratio of 0.07 (95% CI 0.01 to 0.48).
Compounded semaglutide vials recalled for particulate matter
An ongoing FDA Class II recall covers multiple compounded semaglutide multi-dose vials from one US compounding firm for particulate matter - ask patients what their GLP-1 product physically looks like, because a multi-dose vial is not a licensed presentation.
Closed loop helps impaired awareness, but does not close the gap
Starting the Omnipod 5 hybrid closed loop in impaired awareness of hypoglycaemia cut time below range from 2.8% to 1.7% and weekly episodes from 5.4 to 4.0, but at twelve months the hypoglycaemia burden was still about double that of matched people with normal awareness.
Every insulin prescription needs a written sick-day plan
Give every patient on insulin a written sick-day plan with the specific numbers that mean seek help - and for anyone on an SGLT2 inhibitor, add an explicit instruction to pause it during acute illness and before surgery.
A roadmap for licensing SGLT inhibitors in type 1 diabetes
A joint endocrinology, nephrology and cardiology group argues that SGLT inhibitors could be licensed for heart and kidney disease in type 1 diabetes through surrogate-endpoint trials - provided ketoacidosis mitigation protocols, which currently lack rigorous evidence, are properly evaluated.
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