The efficacy and safety of LEVEMIR given once-daily at bedtime or twice-daily (before breakfast and at bedtime, before breakfast and with the evening meal, or at 12-hour intervals) was compared to that of once-daily or twice-daily NPH human insulin or once-daily insulin glargine in non-blinded, randomized, parallel studies of 6004 patients with diabetes (3724 with type 1, and 2280 with type 2). In general, patients treated with LEVEMIR achieved levels of glycemic control similar to those treated with NPH human insulin or insulin glargine, as measured by glycosylated hemoglobin (HbA1c).
Type 1 Diabetes – Adult
In one non-blinded clinical study (Study A, n=409), adult patients with type 1 diabetes were randomized to treatment with either LEVEMIR at 12-hour intervals, LEVEMIR morning and bedtime or NPH human insulin morning and bedtime. Insulin aspart was also administered before each meal. At 16 weeks of treatment, the combined LEVEMIR-treated patients had similar HbA1c and fasting plasma glucose (FPG) reductions to NPH-treated patients (Table 1). Differences in timing of LEVEMIR administration (or flexible dosing) had no effect on HbA1c, FPG, body weight, or risk of having hypoglycemic episodes.
Overall glycemic control achieved with LEVEMIR was compared to that achieved with insulin glargine in a randomized, non-blinded, clinical study (Study B, n=320) in which patients with type 1 diabetes were treated for 26 weeks with either twice-daily (morning and bedtime) LEVEMIR or once-daily (bedtime) insulin glargine. Insulin aspart was administered before each meal. LEVEMIR-treated patients had a decrease in HbA1c similar to that of insulin glargine-treated patients.
In a randomized, controlled clinical study (Study C, n=749), patients with type 1 diabetes were treated with once-daily (bedtime) LEVEMIR or NPH human insulin, both in combination with human soluble insulin before each meal for 6 months. LEVEMIR and NPH human insulin had a similar effect on HbA1c.
Table 1: Efficacy and Insulin Dosage in Type 1 Diabetes Mellitus - Adult | Study A |
| Treatment duration | 16 weeks |
| Treatment in combination with | NovoLog® (insulin aspart) |
| LEVEMIR | NPH |
| Number of subjects treated | 276 | 133 |
| HbA1c (%) | |
| Baseline | 8.64 | 8.51 |
| End of study adjusted mean | 7.76 | 7.94 |
| Mean change from baseline | -0.82 | -0.60 |
| Fasting Plasma Glucose (mg/dL) | |
| End of study adjusted mean | 168 | 202 |
| Mean change from baseline | -42.48 | -10.80 |
| Daily Basal Insulin Dose (U/kg) | |
| Prestudy mean | 0.36 | 0.39 |
| End of study mean | 0.49 | 0.45 |
| Daily Bolus Insulin Dose (U/kg) | |
| Prestudy mean | 0.40 | 0.40 |
| End of study mean | 0.38 | 0.38 |
| Baseline values were included as covariates in an ANCOVA analysis. |
Type 1 Diabetes - Pediatric
In a non-blinded, randomized, controlled clinical study (Study D, n=347), pediatric patients (age range 6 to 17) with type 1 diabetes were treated for 26 weeks with a basal-bolus insulin regimen. LEVEMIR and NPH human insulin were administered once- or twice-daily (bedtime or morning and bedtime) according to pretrial dose regimen. Bolus insulin aspart was administered before each meal. LEVEMIR-treated patients had a decrease in HbA1c similar to that of NPH human insulin.
Table 2: Efficacy and Insulin Dosage in Type 1 Diabetes Mellitus - Pediatric | Study D |
| Treatment duration | 26 weeks |
| Treatment in combination with | NovoLog® (insulin aspart) |
| LEVEMIR | NPH |
| Number of subjects treated | 232 | 115 |
| HbA1c (%) | |
| Baseline | 8.75 | 8.77 |
| End of study adjusted mean | 8.02 | 7.93 |
| Mean change from baseline | -0.72 | -0.80 |
| Fasting Plasma Glucose (mg/dL) | |
| End of study adjusted mean | 151.92 | 172.44 |
| Mean change from baseline | -45.00 | -19.98 |
| Daily Basal Insulin Dose (U/kg) | |
| Prestudy mean | 0.48 | 0.49 |
| End of study mean | 0.67 | 0.64 |
| Daily Bolus Insulin Dose (U/kg) | |
| Prestudy mean | 0.52 | 0.47 |
| End of study mean | 0.52 | 0.51 |
Type 2 Diabetes – Adult
In a 24-week, non-blinded, randomized, clinical study (Study E, n=476), LEVEMIR administered twice-daily (before breakfast and evening) was compared to a similar regimen of NPH human insulin as part of a regimen of combination therapy with one or two of the following oral antidiabetes agents (metformin, insulin secretagogue, or α–glucosidase inhibitor). LEVEMIR and NPH similarly lowered HbA1c from baseline (Table 3).
Table 3: Efficacy and Insulin Dosage in Type 2 Diabetes Mellitus | Study E |
| Treatment duration | 24 weeks |
| Treatment in combination with | OAD |
| LEVEMIR | NPH |
| Number of subjects treated | 237 | 239 |
| HbA1c (%) | |
| Baseline | 8.61 | 8.51 |
| End of study adjusted mean | 6.58 | 6.46 |
| Mean change from baseline | -1.84 | -1.90 |
| Proportion achieving HbA1c ≤ 7% | 70% | 74% |
| Fasting Plasma Glucose (mg/dL) | |
| End of study adjusted mean | 119.16 | 113.40 |
| Mean change from baseline | -75.96 | -74.34 |
| Daily Insulin Dose (U/kg) | |
| End of study mean | 0.77 | 0.52 |
In a 22-week, non-blinded, randomized, clinical study (Study F, n=395) in adults with Type 2 diabetes, LEVEMIR and NPH human insulin were given once- or twice-daily as part of a basal-bolus regimen. As measured by HbA1c or FPG, LEVEMIR had efficacy similar to NPH human insulin.