October 26, 2026
The complexity of multi-use injectors incorporates unique requirements, not least among them a need to be sterile throughout device usage. Microbial ingress testing can be a useful tool to ensure peak safety and effectiveness, but has its own challenges.
In this Pharma Matters Q&A, Cassidy Law, Study Director III—Supervisor, Microbiology & Microbial IDs, addresses these issues. Moreover, Law discusses the benefits of a risk-based approach in designing a microbial ingress validation study.
Study Director III - Supervisor, Microbiology & Microbial IDs
Cassidy has over nine years of laboratory experience, specializing in microbiology and disinfectant efficacy testing. She began her career in clinical laboratories, focusing on genetic sequencing and fragment analysis for five years before joining Nelson Labs, where she has worked for the past four and a half years. At Nelson Labs, Cassidy spent her first year as an analyst in the microbiology lab before transitioning into her current role as a Study Director. In this role, she has led studies in environmental testing, USP <60–62> testing, and disinfectant efficacy testing. Her expertise lies in guiding clients through the regulatory and technical aspects of disinfectant efficacy studies and ensuring the generation of high-quality, reliable data.
