|
| STID | Atrigel | Alzamer | Saber | Gliadel | Durin |
| Physical form | Cylinder | Amorphous | Amorphous | Amorphous | Disc | Pellet, melt |
| Solvent needed for deployment | No | Yes | Yes | Yes | No | No |
| Manufacture process | Single step, folding, rolling | Multi step mixing, lyophilization | Multi step mixing, microsphere control | Multi step mixing, particle size control | High pressure | Molding, Extrusion |
| Depot boundary defined | Yes | No | No | No | Yes | Yes |
| Depot or implant uniformity | Heterogeneous | Homogenous | Homogenous | Homogenous | Homogenous | Homogenous or heterogeneous |
| Protection of the inner side of the depot | Yes | No | No | No | No | No |