- Ultra rapid lispro (URLi) was faster in its absorption, was associated with the lowest postprandial glucose (PPG), and more closely matched a normal physiological profile of patients without diabetes compared with insulin lispro (IL), insulin aspart (IA), and fast-acting insulin aspart (FA) in patients with type 1 diabetes (T1D).
Why this matters
- Many insulins are not fast enough to match the rate of carbohydrate absorption.
- Patients with T1D (n=68) and healthy control patients (n=12) were enrolled.
- Prior to the start of a 5-hour liquid meal test consisting of approximately 100 g carbohydrate, participants were randomly assigned to receive a single subcutaneous dose of either URLi, IL, IA, or FA.
- Healthy control patients received the same liquid meal but no insulin.
- Funding: Eli Lilly and Company.
- URLi featured the fastest insulin absorption at 13 minutes compared with 19 minutes using FA, 25 minutes with IL, and 27 minutes with IA (P<.05 urli vs other insulins>
- A greater percentage reduction in late insulin exposure (2-7 hours) was observed with URLi vs FA (37%), URLi vs IL (30%), and URLi vs IA (45%) (all P<.001>
- At 1 hour following the meal, URLi reduced PPG excursions by 1.4 mmol/L vs IL (P<.0001 mmol vs ia and fa>
- The PPG profile of URLi also more closely matched that observed in healthy control patients in the first 2 hours after the meal test.
- Small sample size.