Drug Metabolic Stability Analysis Service
Accurate metabolic stability data is the foundation of successful preclinical development. At Creative Biolabs, we offer comprehensive metabolic stability assay services to help identify drugs with optimal metabolic stability. Our metabolic stability assays are designed to mimic the physiological conditions of the human body, providing a reliable prediction of how a drug will behave in vivo. We deliver a comprehensive understanding of how your drug is cleared by the body, ensuring you invest only in molecules with favorable pharmacokinetic properties.
Introduction Common Test Systems What We Can Offer Why Creative Biolabs Customer Reviews FAQs Related Services Contact Us
The Critical Role of Metabolic Stability in Drug Development
In vitro metabolic stability assays are important in drug development as they help screen for therapeutic drugs with favorable metabolic properties. Therapeutic drugs that are rapidly metabolized in the body may not have enough time to exert their desired therapeutic effect, leading to lower bioavailability and decreased efficacy. Conversely, drugs that are highly stable and resistant to metabolism may persist in the body for too long, increasing the risk of adverse effects or toxicity.
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Fig.1 Schematic of drug absorption, metabolism, and excretion.
Common Test Systems
To evaluate the drug's metabolic stability, several in vitro test systems are commonly used. These systems mimic the enzymatic environment found in the human body, allowing researchers to assess how compounds interact with and are metabolized by various enzymes. Common test systems include hepatocytes, microsomes, and cell-free systems (recombinant enzymes or enzyme mixtures). A combination of different test systems is often used to comprehensively evaluate the metabolic stability of drugs.
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Microsomes
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Hepatocytes
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S9 fraction
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Recombinant CYP enzymes
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Plasma
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What We Can Offer
Metabolic Stability Assays
Metabolic stability assays are used to evaluate the rate at which a drug is metabolized or broken down in biological systems, typically in liver microsomes or hepatocytes, which contain the enzymes responsible for the majority of drug metabolism in the body. We provide several different types of metabolic stability assays, including:
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Available Assays
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Description and Features
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Microsome/S9 stability assays
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These assays use liver microsomes or the S9 fraction, which contain the enzymes responsible for drug metabolism, to evaluate the stability of a drug in vitro.
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Hepatocyte stability assays
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These assays use isolated hepatocytes to evaluate the stability of a compound in a more complex cellular environment.
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Plasma stability assays
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Plasma metabolic stability assessment involves evaluating the stability of a compound in plasma samples obtained from humans or animals.
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Recombinant enzyme stability assays
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A mixture of recombinant enzymes (e.g., CYP1A2, CYP2C9, CYP3A4, UGT1A1, UGT1A4, GSTM1, and MAOA) is used to mimic the metabolic activity that would occur in the body.
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Fig.2 Drug metabolic stability analysis in a microsome system.
Metabolic Profiling Service
Additionally, metabolic profiling is also important in drug development. This involves the identification and quantification of metabolites formed during the metabolism of a drug. Metabolites can be analyzed using various techniques, such as LC-MS or NMR. Information obtained from metabolic profiling can be used to identify potential reactive intermediates or toxic metabolites that may contribute to adverse effects or toxicity observed in vivo.
Highlights
Complete Pathway Analysis
We utilize a comprehensive suite of models, including cytosol, S9, and hepatocytes, extending beyond standard microsomes. This captures all Phase I and Phase II pathways, accurately integrating non-CYP enzymes like AO and XO for definitive metabolic insight.
Next-Generation In Vitro Systems
For definitive, long-term stability studies, we use cutting-edge 3D hepatocyte cultures and MPS technology. These advanced systems provide superior physiological relevance and longevity, accurately resolving low intrinsic clearance.
Document Management and Quality
Our advanced Tier 2/3 services produce highly detailed and organized technical reports. These documents provide complete documentation of methods, raw data references, and expert interpretation, ensuring seamless technical review and filing preparation.
Validated Kinetic Methodology
Our established methodologies ensure the kinetic measurements and scaling algorithms employed are accurate and robust. We utilize continuous internal validation against known compounds to provide highly predictive and reliable quantitative results for every project.
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Customer Reviews
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Exceptional Predictivity
Using Creative Biolabs' drug metabolic stability analysis service in our research has significantly improved the correlation between our in vitro and in vivo data. Their incorporation of the unbound fraction in the scaling calculation gave us the most accurate dosing predictions we've ever achieved. - M. C*****ng.
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Superior Modeling of Stable Compounds
We struggled to get definitive clearance values for our low-turnover peptide mimetic. The implementation of the 3D hepatocyte culture by Creative Biolabs resolved the true intrinsic clearance, moving the compound from an 'unpredictable' status to a confirmed lead candidate. Their technical guidance was invaluable. - R. W*****ms.
FAQs
Q: Which in vitro model (microsomes vs. hepatocytes) should I select for my compound?
A: Microsomes facilitate rapid, high-throughput screening of Phase I metabolism during early discovery. Hepatocytes are the definitive model, encompassing all Phase I/II enzymes and drug transporters. They yield the highest predictive value for total hepatic clearance.
Q: How does Creative Biolabs ensure the in vitro data accurately predict in vivo clearance?
A: We scale in vitro data by meticulously factoring in crucial physiological parameters. This includes protein binding and the unbound fraction, allowing accurate extrapolation to the predicted human hepatic clearance.
Related Services
Drug-Drug Interaction Analysis Services
Comprehensive in vitro evaluation of drug inhibition or substrate status against key transporters (e.g., OATP, BCRP, P-gp) is crucial for absorption and efflux.
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Protein Binding Analysis Service
Critical determination of the unbound fraction in plasma, which is required for accurate Clint scaling and is the key driver of drug activity.
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How to Contact Us
At Creative Biolabs, we are committed to providing our clients with the highest quality data and insights to support their drug development efforts. Our metabolic stability assay services are tailored to meet the specific needs of each client, ensuring that they receive the most relevant and accurate information to guide their drug discovery and development process. If you have a need for drug metabolic stability analysis, please contact us now.
