Table III.
Summary of In Vitro Release of Octreotide-Loaded PLHMGA Microspheres of Different Composition (n = 3) and PLGA Microspheres in PBS (pH 7.4) at 37°C
| Batch | % of the loaded amount released | % burst release a | % native octreotidec | Microspheres degradation (days) | Duration of release |
|---|---|---|---|---|---|
| PLHMGA 75/25 | 69.6 ± 7.0 | 18.5 ± 0.5 | 74.5 ± 0.3 | 55 | 75 |
| PLHMGA 65/35 | 82.1 ± 5.0 | 21.1 ± 0.2 | 65.6 ± 1.5 | 35 | 60 |
| PLHMGA 50/50 | 84.5 ± 4.0 | 23.7 ± 0.3 | 68.3 ± 3.2 | 20 | 20 |
| bPLGA | 85 | no | 25 | 90 | 95 |
aDefined as the amount released after 24 h
bResults are from a single batch
cDefined with respect to the total octreotide that was released