Tag: Regulatory submissions

Include Extractables and Leachables Testing in Stability Protocols When Needed

Understanding the Tip: Why extractables and leachables (E&L) matter in stability: Extractables are compounds that can be released from packaging materials under aggressive conditions, while leachables are those that migrate into the product under actual storage conditions. When left unchecked, these compounds can compromise drug purity, potency, and safety. E&L testing during stability ensures the…

Stability Study Tips

Perform Impurity Profiling Over Time to Monitor Stability Trends

Understanding the Tip: Why impurity trend monitoring is essential: Impurity profiling involves evaluating known and unknown degradants across multiple stability time points. It reveals whether degradation is linear, accelerating, or plateauing—and helps determine if impurities remain below safety thresholds. Without such profiling, emerging risks may go unnoticed, resulting in ineffective shelf-life justification or post-market issues….

Stability Study Tips

Use Desiccants and Oxygen Scavengers Only When Justified by Stability Data

Understanding the Tip: Why targeted use of desiccants and scavengers matters: Desiccants and oxygen scavengers serve as protective packaging tools to mitigate moisture and oxygen ingress. However, their use should not be default or precautionary. Instead, their inclusion must be based on actual stability study outcomes or forced degradation data indicating sensitivity to humidity or…

Stability Study Tips

Tips for Managing Stability Data Across Multiple Submissions

Pharmaceutical companies often prepare dossiers for multiple regulatory agencies like the FDA, EMA, ASEAN, and TGA simultaneously. Managing stability data across these submissions requires precision, harmonization, and clarity. This article provides practical how-to strategies for compiling, organizing, and aligning your stability datasets across global submissions. 📝 Understand the Regulatory Nuances First Each region interprets and…

Regional Guidelines: FDA, EMA, ASEAN, TGA, Regulatory Guidelines

Track Interim vs. Final Packaging Differences in Stability Studies

Understanding the Tip: Why packaging clarity matters in stability studies: During development, it’s common to initiate stability studies using interim packaging while final commercial packaging is still under design, validation, or procurement. However, the barrier properties, closure integrity, material interaction, and container size can differ significantly. Without clearly documenting the distinction, stability data may be…

Stability Study Tips

Set Temperature Excursion Limits Based on Product-Specific Risk Profiles

Understanding the Tip: Why product-specific limits matter for temperature excursions: Temperature excursions—temporary deviations from labeled storage conditions—can occur during manufacturing, transport, or storage. The impact of these deviations varies widely depending on the product’s formulation, sensitivity, packaging, and degradation pathway. A one-size-fits-all limit is inappropriate and risky. Tailoring excursion thresholds based on each product’s risk…

Stability Study Tips

Set Temperature Excursion Limits Based on Product-Specific Risk Profiles

Understanding the Tip: Why temperature excursion control is essential: Temperature excursions—temporary deviations from defined storage conditions—can affect a drug product’s stability and efficacy. Not all products respond the same way to temperature stress, so applying generic limits is scientifically unsound and regulatory risky. Instead, limits should be based on the product’s physicochemical properties, degradation profile,…

Stability Study Tips

Include Dose Uniformity Testing in MDI and DPI Stability Studies

Understanding the Tip: Why dose uniformity is essential in inhalation products: Metered Dose Inhalers (MDIs) and Dry Powder Inhalers (DPIs) are used to deliver highly specific microgram-level doses to the lungs. Slight variations in dose delivery over time can lead to underdosing or overdosing, resulting in therapeutic failure or adverse effects. Stability studies must evaluate…

Stability Study Tips

Use Original Packaging for Stability Pulls — Avoid Reusing Containers

Understanding the Tip: Why original packaging matters for each time point: Stability testing aims to evaluate how the complete product—including the container closure system—performs over time. Using original packaging for each pull ensures that the sample reflects actual degradation and storage behavior. Reusing containers from earlier pulls introduces risks such as compromised seals, cumulative exposure,…

Stability Study Tips

Justify Label Expiry Claims Using Robust Stability Data Analysis

Understanding the Tip: Why expiry date justification is critical for product labeling: The expiry date on a pharmaceutical product label is a direct commitment to product quality, safety, and efficacy through the claimed shelf life. This claim must be backed by comprehensive stability data evaluated under ICH-recommended conditions. Without a robust scientific rationale, label expiry…

Stability Study Tips