Pharma Blog
Permeability and Biowaivers | A Key Factor in Regulatory Justification
For obtaining a biowaiver based on permeability, regulatory authorities like USFDA, EMA, and WHO require a justification report that classifies the drug according to the Biopharmaceutics Classification System (BCS). This classification determines whether a drug is eligible for a biowaiver based on high solubility and high permeability (BCS Class I) ... Read More
Level III Biorelevant Media
At Level III of biorelevant media simulation, a comprehensive replication of the gastrointestinal (GI) tract environment includes factors such as luminal osmolality, pH range, buffer capacity using specific buffer ingredients, bile components, dietary lipid components, dietary proteins, increased viscosity (notably in the fed stomach and lower intestine), and the replication ... Read More
Level II Biorelevant Media
Developing accurate models of the gastrointestinal (GI) tract is paramount in pharmaceutical research to predict how drugs interact with the human body. Level II biorelevant media emerges as a sophisticated tool to mirror the intricate conditions within the GI system, playing a pivotal role in enhancing drug formulation and assessment. ... Read More
Level I Biorelevant Media
When studying drug dissolution in the gastrointestinal (GI) tract, simulating realistic physiological conditions is crucial for accurate results. Enter Level I biorelevant media – a novel approach to create in vitro environments that closely mimic luminal pH and buffer capacity in different regions of the GI tract. At Level I, ... Read More
Level 0 Biorelevant Media
Biorelevant media were initially proposed in 1998 to study the dissolution of poorly soluble drugs in the gastrointestinal (GI) tract. Over time, different media have been developed to mimic various parts of the GI tract in both fasted and fed states. For the fasted state, there are specific biorelevant media ... Read More
Teriparatide Injection’s Generic Approval and FDA Quality-Related Review
Introduction to Teriparatide and its Generic Approval Teriparatide, a peptide-based drug consisting of 34 amino acids with a molecular weight of 4117.8 daltons, is primarily indicated for treating osteoporosis. Its formulation comes as a clear solution in a multi-dose injector pen for subcutaneous injection. Teriparatide is administered daily in a ... Read More
Common Deficiencies in ANDA Submissions for Peptide Drugs
The FDA highlights several common deficiencies observed in the review of peptide-based generic drugs, including Teriparatide: Impurity Profiles Not Up to Date: Manufacturers often submit impurity profiles based on products aged at release. The FDA recommends that profiles also include data from samples aged at the end of the proposed ... Read More
Addressing Immunogenicity Concerns and Impurity Profiling for Peptide Drugs
Immunogenicity, or the potential to trigger immune responses, is a critical concern for peptide drugs like Teriparatide. Impurities, aggregates, or contaminants in peptide-based generics could lead to unwanted immune reactions. Thus, the FDA recommends evaluating both the innate and adaptive immune responses when developing a generic peptide. Innate Immune Response: ... Read More
Assessing Immunogenicity Risk of Peptides
Immunogenicity risk assessment is crucial in developing highly purified synthetic peptide drug products, especially when referencing recombinant DNA (rDNA)-origin biologics. The FDA’s Synthetic Peptide Guidance and Product-Specific Guidances (PSGs) provide a structured approach to evaluating these risks and ensuring generic peptide safety and efficacy. Key Takeaways from the Guidance & ... Read More
Drug-Device Combination Products | Innovations and Compliance
In the ever-evolving landscape of medical technologies, drug-device combination products represent a cutting-edge integration of drugs, medical devices, and biologics. These products offer innovative solutions for disease management, but they also demand a robust understanding of regulatory frameworks and compliance to ensure safety, efficacy, and quality. What Are Combination Products? ... Read More