The slide "Characterization Studies" details physicochemical properties on the left, including particle size distribution, spray pattern, plume geometry, droplet size, and morphology, to ensure uniformity, reproducibility, and performance consistency of nasal and inhalation drug products. On the right, it covers in vitro performance and controls such as in vitro release, extractables/leachables, and microbial controls, validating device functionality, safety from impurities, and sterility to meet regulatory standards.
Characterization Studies
| Physicochemical Properties | In Vitro Performance & Controls |
|---|
| Includes particle size distribution, spray pattern, plume geometry, droplet size, and morphology. Ensures uniformity, reproducibility, and performance consistency of nasal and inhalation drug products. | Covers in vitro release, extractables/leachables, and microbial controls. Validates device functionality, safety from impurities, and sterility to meet regulatory standards. |
Source: FDA Guidance for Industry: Nasal Spray and Inhalation Solution, Suspension, and Spray Drug Products — CMC Documentation