Related Experiment Video
Updated: Jan 29, 2026
09:51
Microfluidic Production of Lysolipid-Containing Temperature-Sensitive Liposomes
Published on: March 3, 2020
9.8K
[In Vitro Release Method for Liposome Drug Products]
1Analytical Research, Pharmaceutical Science & Technology Unit, Medicine Development Center, Eisai Co., Ltd.
Yakugaku Zasshi : Journal of the Pharmaceutical Society of Japan
|February 5, 2019
Summary
Liposome drug delivery systems require careful quality control. This review focuses on drug release from liposomes, exploring factors influencing it and methods for assaying drug release performance.
Area of Science:
- Pharmaceutical Sciences
- Biotechnology
- Drug Delivery Systems
Background:
- Liposome drug delivery systems (liposome DDS) are advanced platforms with significant therapeutic potential, particularly in anti-cancer treatments.
- The efficacy and safety of liposomes depend on their pharmacokinetic and disposition profiles.
- Consistent quality of liposome DDS is critical, necessitating the identification of critical quality attributes and control strategies.
Purpose of the Study:
- To review the critical aspect of drug release from liposomes.
- To discuss the influence of drug physicochemical properties on liposomal drug release.
- To explore methods for simulating drug release and designing appropriate assays for quality control.
Main Methods:
- Review of existing literature on liposome drug release mechanisms.
- Analysis of factors affecting drug release kinetics.
- Discussion on the design principles for simulated body fluids for drug release testing.
Main Results:
- Drug release is significantly influenced by the physicochemical properties of the encapsulated drug.
- Mathematical modeling and simulation can predict drug release profiles.
- Standardized simulated body fluids are essential for reliable drug release assays.
Conclusions:
- Drug release is a critical quality attribute for liposome DDS, impacting in vivo performance.
- Understanding and controlling drug release are vital for developing safe and effective liposomal therapeutics.
- Standardized analytical methods, including simulated body fluid assays, are necessary for ensuring liposome product quality and performance.
Related Concept Videos
01:10In Vitro Drug Release Testing: Overview, Development and Validation
331
In vitro dissolution and drug release tests assess how quickly and how much of a drug is released from its dosage form into an aqueous medium under standardized laboratory conditions. These tests are essential tools in pharmaceutical development and quality assurance, offering insight into the drug's performance before clinical use.During formulation development, dissolution testing identifies incomplete or inconsistent drug release issues. It also supports decisions on selecting the optimal...
331
01:20Drug Product Performance: In Vitro–In Vivo Correlation
272
In pharmaceutical development, it's crucial to establish a predictive in vitro–in vivo correlation (IVIVC) for two or more formulations to gain a comprehensive understanding of release properties. IVIVC reduces the need for costly in vivo studies and facilitates the establishment of meaningful dissolution specifications with significant cost savings and decreased regulatory burden. Furthermore, a meaningful IVIVC should predict Cmax and AUC within 20%, aligning with FDA guidance while...
272
01:16Methods for Studying Drug Absorption: In vitro
606
In vitro experiments are crucial for understanding the transport and absorption of drugs through biological materials. These studies employ varied methods such as the diffusion cell method, the everted sac technique, and the everted ring technique.
The diffusion cell method uses a two-compartment cell, including a donor compartment with the drug solution, which simulates the environment where the drug is applied, and a receptor compartment with a buffer solution, which simulates the environment...
The diffusion cell method uses a two-compartment cell, including a donor compartment with the drug solution, which simulates the environment where the drug is applied, and a receptor compartment with a buffer solution, which simulates the environment...
606
01:17In Vitro Drug Dissolution: Alternative Methods
228
Alternative drug dissolution methods include the rotating bottle, intrinsic dissolution test, peristalsis, and the Franz diffusion cell method. The rotating bottle method involves meticulously rotating tightly capped controlled-release beads in a temperature-controlled bath. Periodic decanting of samples allows for residue assay, followed by refilling with fresh medium and testing at various pH levels to emulate the gastrointestinal tract conditions.In contrast, the intrinsic dissolution test...
228
01:21Drugs Affecting Neurotransmitter Release or Uptake
1.6K
Certain drugs can affect how neurotransmitters called catecholamines, are released or taken back up in the adrenergic neuron. They can have different effects on the body's sympathetic transmission. Reserpine, a natural compound found in the Rauwolfia shrub, blocks a transporter called vesicular monoamine transporter (VMAT), which leads to a buildup of catecholamines in the cell and reduces sympathetic transmission. Another drug called guanethidine works in multiple ways, including blocking...
1.6K
01:29Clinically Relevant Drug Product Specifications: Methods of Establishment
217
Product specifications define the acceptable quality of a pharmaceutical product by ensuring identity, purity, potency, and strength. These specifications serve as benchmarks during development, manufacturing, and post-approval quality control. Clinically relevant specifications are particularly important because they directly relate to a drug's safety and efficacy in clinical use.Dissolution studies are critical biopharmaceutic tools that link in vitro behavior to in vivo performance. They...
217