Transdermal Drug Delivery Articles

  1. Delivery Device Functional Scrutiny: Can You Pass (Without) The Test? 7/13/2026

    In this article, Chief Editor Tom von Gunden considers the relationship between regulatory testing and the biopharma industry’s interest in leveraging drug delivery platform technologies to reduce regulatory burden in product development. Tom includes a conversation with guest columnist Doug Mead about waivers on testing in the context of FDA’s guidance on Essential Drug Delivery Outputs (EDDOs).  

  2. Stability And Release Testing For Delivery Devices: Waived Or Wanted? 7/13/2026

    In this article, combination product consultant Doug Mead reports on precedent research he conducted on requests for FDA waivers on functional stability and release testing for drug delivery devices. He provides sample scenarios in the context of device design considerations for Essential Performance Requirements (EPRs) and the more recent FDA draft guidance on Essential Drug Delivery Outputs (EDDOs).

  3. Microneedles In Drug Delivery: From Bench To Patch 7/10/2026

    Let's take a closer look at the scientific principles, technological progress, and translational hurdles defining the present state of microneedle research.

  4. Improving Execution Of Biological Evaluation Of Drug Delivery Devices 6/3/2026

    This article provides a framework to streamline the biological safety assessment process, reduce testing burdens, and improve patient safety for combination products.

  5. Risk Is the Spine: What The First 100 QMSR Inspections Reveal 5/29/2026

    The FDA has now completed just over 100 inspections under its new Quality Management System Regulation, and the agency has begun sharing preliminary observations from those inspections.

  6. Need A Drug Delivery Conversation Starter? Try Target Product Profile 5/18/2026

    In this article, Chief Editor Tom von Gunden explores the need for and existence of cross-functional communication during drug product development and delivery device selection. He consults industry veterans with experience in various formulation or delivery roles at GSK and Merck. They identify the Target Product Profile (TPP) as the core concept guiding collaboration. 

  7. Human Factors: A Key Factor In Regulatory Approvals 5/5/2026

    In this article, combination product consultant Doug Mead demonstrates the practice and results of using GenAI search tools to conduct precedent research on Human Factors (HF) regulatory considerations. He illuminates query responses related to Complete Response Letters (CRLs), HF study waivers, use errors, critical tasks, and other aspects of FDA approvals for combination products and other delivery devices.

  8. Regulatory Attention To Human Factors: How Much Is There? 5/5/2026

    In this article, Chief Editor Tom von Gunden considers trends in drug delivery likely to drive increased scrutiny around Human Factors {HF) in regulatory submissions and approvals. In an embedded video and transcript from Tom’s conversation with combination products consultant Doug Mead, the two discuss findings from GenAI queries that surfaced FDA precedents on HF-related matters including critical tasks, use errors, and risk mitigation.  

  9. Patient-Centric Drug Delivery: Do Possible And Preferable Always Align? 4/22/2026

    In this article, Chief Editor Tom von Gunden discusses the alignment of drug delivery method with patient preference and need. He reflects on recent conversations in which he heard from experts in drug and delivery product development, as well as patients themselves, about patient-centric considerations such as safety, efficacy, usability, and convenience. The primary use case is the transition from clinically administered IV to subcutaneous injection, including self-administration.

  10. 6 Packaging And Delivery Challenges For Biologic Therapies 4/1/2026

    In this article, Fran DeGrazio identifies six aspects of biologics-based therapy packaging and delivery that, if addressed, may help to ensure successful product development and lifecycle management. They include 1) chemical compatibility with device functionality, 2) long-acting formulations, 3) product stability, 4) primary packaging and device integration, 5) cold storage, and 6) higher concentrations and viscosities.