Author: digi

Include Intact vs. Broken Blister Comparisons in Photostability Testing

Understanding the Tip: Why blister integrity matters in photostability studies: Blister packaging plays a critical role in protecting pharmaceutical tablets and capsules from environmental factors—especially light. Over time, blisters may become punctured, cracked, or compromised during distribution and handling. Photostability testing that only evaluates intact blisters may underestimate the risk of product degradation if exposed…

Stability Study Tips

Account for Residual Moisture Content in Lyophilized Products

Understanding the Tip: Why residual moisture impacts lyophilized product stability: Lyophilized (freeze-dried) products are designed to extend the shelf life of moisture-sensitive compounds, particularly peptides, biologics, and vaccines. However, the success of lyophilization depends on the ability to minimize and control residual moisture. Even small amounts of water left in the cake can catalyze hydrolysis,…

Stability Study Tips

Using Barrier Films and Laminates in Sensitive Drug Packaging

In the pharmaceutical industry, packaging plays a critical role in preserving the integrity and efficacy of drug products. For moisture-sensitive, oxygen-sensitive, and light-sensitive formulations, standard packaging may not suffice. Barrier films and laminates offer enhanced protection by significantly reducing permeation of gases, vapors, and other environmental contaminants. This tutorial explores how barrier packaging materials function,…

Packaging and Containers, Packaging Materials Impact on Stability Testing

Using High-Voltage Leak Detection in Parenteral Packaging

High-Voltage Leak Detection (HVLD) is a non-destructive, deterministic method widely adopted for container closure integrity testing (CCIT) in parenteral drug packaging. With its ability to detect submicron leaks in liquid-filled containers, HVLD is particularly useful in sterile dosage forms such as glass ampoules, prefilled syringes, and vials. In this tutorial, we discuss how HVLD works,…

Container Closure Integrity Testing, Packaging and Containers

Challenges in Testing Containers with Complex Geometry for Integrity

Container Closure Integrity Testing (CCIT) is essential to ensuring sterility in pharmaceutical products. While traditional vials and ampoules are relatively straightforward to test, packaging systems with complex geometry—such as blow-fill-seal (BFS) units, auto-injectors, nasal sprays, and multi-chamber pouches—introduce significant challenges. These designs complicate test method development, validation, and routine execution. In this article, we delve…

Container Closure Integrity Testing, Packaging and Containers

For Inhalation Products, Include Aerosol Performance Testing in Stability

Understanding the Tip: Why aerosol performance must be part of stability testing: Inhalation products such as pressurized metered-dose inhalers (pMDIs), dry powder inhalers (DPIs), and nebulizer solutions are highly dependent on device functionality and aerosol characteristics. The therapeutic effect is governed by the accurate delivery of a defined particle size to the lungs. Over time,…

Stability Study Tips

Developing an SOP for CCIT in Sterile Product Manufacturing

Container Closure Integrity Testing (CCIT) is a vital quality assurance process in sterile product manufacturing. It ensures that the container closure system (CCS) maintains the sterility of a product throughout its shelf life. A well-written Standard Operating Procedure (SOP) for CCIT provides clarity, regulatory alignment, and consistent execution. In this tutorial, we’ll walk through how…

Container Closure Integrity Testing, Packaging and Containers

Understanding the Role of Microbial Ingress in CCIT

In the pharmaceutical industry, particularly for sterile products like injectables and biologics, preventing microbial contamination is critical. Container Closure Integrity Testing (CCIT) plays a vital role in ensuring sterility by verifying that the packaging system acts as a microbial barrier. One of the most relevant yet complex aspects of CCIT is microbial ingress testing. This…

Container Closure Integrity Testing, Packaging and Containers

Never Delete Original Data — Follow ALCOA+ Principles in Stability Studies

Understanding the Tip: Why original data must be preserved in stability studies: In the context of GMP-compliant stability testing, original data serves as the foundational evidence of product quality, regulatory compliance, and scientific integrity. Deleting, overwriting, or modifying raw data compromises traceability and may be construed as data falsification. Whether the data is paper-based or…

Stability Study Tips

Validation Requirements for Non-Destructive CCIT

Non-destructive Container Closure Integrity Testing (CCIT) methods are increasingly preferred for pharmaceutical packaging because they preserve samples for continued stability testing and commercial use. However, regulatory agencies such as USFDA and EMA demand thorough validation of these methods to ensure their reliability, reproducibility, and sensitivity. This tutorial walks through the validation requirements for non-destructive CCIT…

Container Closure Integrity Testing, Packaging and Containers