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Updated: Jun 5, 2026

Disposable Dosators Intended for Dry Powder Delivery to Mice
Published on: August 18, 2023
The manufacture of low-dose oral solid dosage form to support early clinical studies using an automated micro-filing
Mingda Bi1, Changquan Calvin Sun, Francisco Alvarez
1Formulation development group, Pharmaceutical R&D, Amgen Inc, Thousand Oaks, California, USA. mbi@amgen.com
Abstract:
Automated powder dispensing systems enable supplying early clinical studies using drug-in-capsule approach, which is material sparing and requires a minimum amount of resources. However, the inability of accurately filling the capsule with a small amount, e.g., several micrograms, of drug limits the use of these systems for potent drugs. We demonstrate that formulated powder blends can be used to successfully fill capsules containing 5 μg to 5 mg of drug with adequate content uniformity. Effective formulation and process strategies that enable this approach are presented with examples.
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