Comparison Of Analog Insulin Mix 50:50 With Human Insulin Mix 30:70 In Persons With Type 2 Diabetes During Ramadan
INTERNATIONAL JOURNAL OF CLINICAL PRACTICE(2019)
Abstract
Aim of the Study To test if changing the Iftar insulin to a 50:50 mixed analog insulin from a 30:70 human insulin at the same total dose leads to improvement in the postprandial blood glucose (taken as after the main meal). Since the intermediate acting insulin dose is effectively lowered, the pre-Suhur blood glucose is also tested to see if this rises. Methods The Iftar human 30:70 mixed insulin is substituted for a 50:50 one using insulin lispro protamine suspension and 50% insulin lispro (Humalog (R) Mix50/50 (TM)), whilst maintaining the same total dose. The participants were also changed to 75% insulin lispro protamine suspension and 25% insulin lispro (Humalog (R) Mix75/25 (TM)) at the same pre-Ramadan dose for their Suhur injection (Experimental group). A similar number of controls continued their 30:70 mixed human insulin at the same dose during Ramadan (Control group). Pre-Ramadan and during Ramadan fasting and postprandial (3 hours) and pre-Suhur blood glucose (BG) are tested in 20 subjects and 20 controls by the patients using home glucose meters. Hypoglycaemia, defined as a BG of <= 70 mg%, was tested for by the patients and noted if they experience symptoms of it. Severe hypoglycaemia occurred if the patient needed assistance for recovery. No insulin dose adjustments are made in either group and any other anti-diabetic treatment was continued. Pre- and post-Ramadan HbA(1)c and body weight are measured. The number of days fasted and baseline characteristics are age, gender, and duration of diabetes are also noted. Differences between groups in parameters were assessed using ANCOVA to adjust for pre-Ramadan values of age, gender, and duration of diabetes. Results All the participants fasted for at least 29 days. The 2 groups were not significantly different at baseline. During Ramadan, mean postprandial BG in the Experimental group was lower by 21.1 mg% (1.2 mmol/l) (95% CI 12.6, 29.7; P < 0.001). Similarly, after Ramadan mean HbA(1)c in the Experimental group was lower by 0.4% (95% CI 0.1%, 0.8%; P = 0.01). No significant differences between the groups were detected in mean bodyweight after Ramadan (P = 0.86) or mean fasting BG during Ramadan (P = 0.07). There was no difference in incidence of hypoglycaemia. Conclusions Switching from human insulin mix 30:70 to analog insulin mix 50:50 results in better post main meal control in Ramadan, without affecting HbA1c, or increasing the incidence of hypoglycaemia.
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Key words
Mixed Insulin Analog 50:50,Postprandial Blood Glucose,Ramadan,Type 2 diabetes
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