Intranasally administered insulin intended for prevention of type 1 diabetes—a safety study in healthy adults
Why this work is in the frame
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Bibliographic record
Abstract
BACKGROUND: Intranasally applied insulin is one of the antigen-specific therapies currently tested in clinical type 1 diabetes prevention trials, for example, in the Type 1 Diabetes Prediction and Prevention Study (DIPP). The possibility that the therapy may cause hypoglycaemia or local irritation and the poorly known immunological safety of mucosal application of the antigen in healthy subjects prompted this study. METHODS: We used a randomised, placebo-controlled, double-blinded crossover study design with 3-week treatment periods to study the effects of once-daily intranasal application of human short-acting insulin without absorption-enhancing adjuvants in 20 non-diabetic adults. The selected 60 IU dose of insulin was equivalent to the weight-based dose used for the DIPP children. We investigated self-monitored blood glucose concentrations, nasal insulin effects and induction of diabetes-associated autoantibodies. RESULTS: The two treatment periods showed no differences in blood glucose concentrations or in the frequency of blood glucose values higher than 3.0 mmol/L. Of the eight measured hypoglycaemic values, only one, which occurred during placebo therapy, was associated with symptoms. Rhinoscopy revealed no nasal irritation, and mucociliary clearance, nasal airway patency and nasal airflow resistance were not affected by the insulin therapy. Eleven subjects complained of transient nasal stinging or unpleasant odour and one subject reduced the dose because of nasal irritation. The treatment did not induce production of any of the four diabetes-associated autoantibodies. CONCLUSIONS: Short-term use of intranasal insulin without absorption enhancers was predominantly well tolerated, the risk of hypoglycaemia was minimal and no objective nasal adverse effects were detected.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.008 | 0.002 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it