The Certara Blog: Systems Pharmacology

Using Virtual Twin Technology to Predict Drug Exposure in Individual Patients

Using Virtual Twin™ Technology to Predict Drug Exposure in Individual Patients

Physiologically-based pharmacokinetics (PBPK) is a valuable resource to support decisions throughout drug development for sponsors and regulators. PBPK is used extensively to predict drug-drug interactions (DDIs), to inform dosing and clinical study design, to predict drug exposure, to predict variation in drug clearance, and to understand mechanisms of drug disposition. Virtual Twin technology, based on […]

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Using Virtual Twin Technology for Model-informed Precision Dosing

Using Virtual Twin™ Technology for Model-informed Precision Dosing

In a recent Expert Review of Clinical Pharmacology article, I assessed the status and future direction of precision dosing in clinical medicine.1 Model-informed precision dosing (MIPD) is a modeling and simulation (M&S) approach in healthcare that is used to predict the most effective and/or least toxic drug dose for a patient. MIPD could revolutionize healthcare […]

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FDA Reauthorization Act (FDARA) Affirms Commitment to Innovative MIDD Strategies

FDA Reauthorization Act (FDARA) Affirms Commitment to Innovative MIDD Strategies

Quietly, without any political rancor, the FDA Reauthorization Act of 2017 (FDARA) was passed by the US Congress and was signed into law by President Trump in late August. The FDARA reauthorizes the Prescription Drug User Act Fee Amendments (PDUFA) for the fifth time, the Medical Device User Act Fee Amendments (MDUFA) for the third […]

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7 Savvy Ways to Reduce Quantitative Systems Pharmacology Models

7 Savvy Ways to Reduce Quantitative Systems Pharmacology Models

Modeling and simulation has become an indispensable part of drug development. Historically, the type of modeling employed changes as a drug moves through the stages of drug development—from discovery to pre-clinical testing to clinical trials. At the early stages of drug discovery, we may use systems biology models to identify drug targets and possible compounds, […]

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Taming Complex Quantitative Systems Pharmacology Models with Model Reduction

Taming Complex Quantitative Systems Pharmacology Models with Model Reduction

Quantitative systems pharmacology (QSP) combines computational modeling and experimental data to examine the relationships between a drug, the biological system, and the disease process. This emerging discipline integrates quantitative drug data with knowledge of its mechanism of action. QSP models predict how drugs modify cellular networks in space and time and how they impact and […]

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Quantitative Systems Toxicology—Taking the Cue from Aristotle

Quantitative Systems Toxicology—Taking the Cue from Aristotle

“The whole is greater than the sum of its parts” -Aristotle This quote from the great 4th century BCE Greek philosopher and scientist has become the mantra for many endeavors, sectors, organizations, and disciplines. From biology, chemistry, and physics to agriculture, engineering, and business, it is the foundation for synergy. What is the connection between […]

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Using Model Reduction to Bridge the QSP-Pharmacometrics Divide

Using Model Reduction to Bridge the QSP-Pharmacometrics Divide

Quantitative systems pharmacology (QSP) models are generally too large to be validated or fit in a traditional sense and they can become intractable to standard methods of analysis or even to the modeler’s own intuition. Model reduction can alleviate these issues of complexity by eliminating portions of a system that have minimal effect upon the […]

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Mechanistic Modeling of Genome Scale Molecular Interaction Networks

Mechanistic Modeling of Genome Scale Molecular Interaction Networks

Upon the completion of the Human Genome Project, the lead investigator, Dr. Francis Collins remarked: Science is a voyage of exploration into the unknown. We are here today to celebrate a milestone along a truly unprecedented voyage, this one into ourselves. Alexander Pope wrote, “Know then thyself. Presume not God to scan. The proper study […]

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How Model-informed Drug Development Will Increase R&D Productivity

How Model-informed Drug Development Will Increase R&D Productivity

Will 2017 finally be the year that we overcome the blight of late-stage attrition of promising drug candidates? In a recent commentary, “Improving the Tools of Clinical Pharmacology: Goals for 2017 and Beyond,” in Clinical Pharmacology & Therapeutics, Issam Zineh and colleagues describe several areas where clinical pharmacology approaches can help reduce late-stage attrition and […]

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Can QSP Save Lives? Lessons from a Trial Debacle

Can QSP Save Lives? Lessons from a Trial Debacle

The notion that volunteers could be harmed in a clinical trial is every drug developer’s worst nightmare. Earlier this year, the drug company, Bial, investigated inhibitors of the enzyme fatty acid amide hydrolase (FAAH) in clinical trials as a treatment for pain. Tragically, one person in the volunteer group died, and six patients were hospitalized. […]

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Status of QSP Modeling in the Pharmaceutical Industry

Status of QSP Modeling in the Pharmaceutical Industry

A primary cause of failures in pharmaceutical research and development (R&D) has been attributed to lack of efficacy,1 suggesting inadequate understanding in therapeutic targets’ biology and their relevance to disease progression or modulation. Quantitative systems pharmacology (QSP) has the promise of increasing the probability of success in R&D by bridging scientific gaps between disciplines to enable […]

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Is the Maturation of Quantitative Systems Pharmacology a Moonshot?

Is the Maturation of Quantitative Systems Pharmacology a Moonshot?

At Certara, we are not afraid to think big. In fact, solving the hardest problems in pharmaceutical R&D is our passion. You might say that some of our ambitions could be described as “moonshots.” After all, they meet the criteria put forth by the Google X moonshot program. We seek to address the huge problem […]

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Insights on Quantitative Systems Pharmacology with Piet van der Graaf

Insights on Quantitative Systems Pharmacology with Piet van der Graaf

Quantitative systems pharmacology (QSP) is an emerging biosimulation technology that is going to increase pharmaceutical R&D productivity. This week at the Roundtable, we’re talking with Dr. Piet van der Graaf, PharmD, PhD about QSP and his vision for how it supports meeting the goal of precision medicine. Dr. van der Graaf is a professor of […]

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