Lecture 1 Flashcards

1
Q

__________ is an approach that leverages mathematical and computational models to enhance the drug development process. It integrates pharmacokinetics (PK), pharmacodynamics (PD), and other biological data to inform decision-making.

A

Model-Informed Drug Development
(MIDD)

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2
Q

Example of Applications for MIDD (Model-Informed Drug Development)

___________:Determining the optimal dosing regimen using Pk/PD modeling.

___________:Simulating potential outcomes to guide clinical trial designs.

_____________:Developing personalized treatment strategies based on individual variability.

A

Dose Optimization

Predictive Modeling

Personalized Medicine

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3
Q

Model-Informed Drug Development (MIDD)

Integration of ________: combines preclinical, clinical, and real-world drug behavior

____________:Uses PK/PD models, physiologically-based pharmacokinetic (PBPK) models, and quantitative systems

Decision support: Helps in dose selection, optimizing clinical trial designs, and improving success rates in drug development

A

data

quantitative models

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4
Q

Benefits of Model-Informed Drug Development (MIDD)

Reduced ______and _____:Speeds up the drug development process by reducing trial-and-error approaches

increased __________:tailors therapies to individual patient characteristics, enhancing efficacy and safety

Regulatory support: Increasingly recognized and supported by regulatory agencies like the ________ for informed decision-making

A

reduced time and cost

Precision

FDA

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5
Q

A _______________ is a highly accurate virtual model of a biological system, patient, or organ, created using data from MIDD. It replicates real-world characteristics, allowing for simulation and prediction of drug behavior in a virtual environment

A

Digital Twin

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6
Q

Applications in Drug development with Digital Twin

__________ Medicine: tailors treatments to individual patient profiles, predicting responses to therapies.

_________Trials: Simulates clinical trials in silico, reducing the need for expensive human trials

Optimized Dosing:Determines the most effective and safe dosing strategies by testing scenarios on the Digital Twin

A

Personalized

Virtual

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7
Q

How Digital Twins Emerge from MIDD

_________Integration: Combines multi-source data (e.g. genomics, PK/PD, imaging) to create a detailed virtual replica

________Modeling: Utilizes MIDD tools like PBPK and QSP models to simulate physiological responses.

________Learning: Updates with new data, refining predictions and enhancing accuracy over time

A

Data

Advanced

Continuous

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8
Q

Applications in Drug Development
_____________ Medicine: Tailors treatments to individual patient profiles predicting responses to therapies.

______________: Simulates clinical trials in silico, reducing the need for extensive human trials.

Optimized Dosing: Determines the most effective and safe dosing strategies by testing scenarios on the Digital Twin.

A

Personalized

Virtual models

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9
Q

What is Quantitative Systems Pharmacology (QSP)?

A modeling and analysis approach that combines systems ___________ with pharmacokinetics (PK) and pharmacodynamics (PD) to understand drug action.

Purpose: To predict the effects of drugs across different biological scales (molecular, cellular, organ, organism).

Application: Used in drug development and precision medicine.

A

biology

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10
Q

Key Components of QSP

___________:
* Study of interactions within biological systems.
* Uses computational models to simulate complex biological processes.

__________________:
How the drug is absorbed, distributed, metabolized, and excreted (ADME).

Pharmacodynamics (PD):
The biochemical and physiological effects of drugs and their mechanisms of action.

A

Systems Biology

Pharmacokinetics (PK)

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11
Q

QSP Modeling Workflow

_____________: Experimental data from in vitro, in vivo, and clinical studies.

_______________: Construct mathematical models representing biological systems.

Parameter Estimation: Calibrate model parameters using experimental data.

Simulation & Validation: Simulate drug behavior and validate models with additional data.

Prediction: Predict outcomes for different scenarios and guide decisionmaking.

A

Data collection

Model Development

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12
Q

Advantages of QSP
______________:Provides detailed understanding of drug mechanisms.

_______________:Forecasts drug responses and potential side effects.

Optimization:Aids in optimizing dosing regimens and therapeutic strategies.

Personalization:Facilitates personalized medicine by accounting for patient variability.

A

Mechanistic insight

Predictive Power

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13
Q

_______________: a mechanistic modeling approach that uses mathematical descriptions of anatomical, physiological, and biochemical processes to predict the absorption, distribution, metabolism, and excretion (ADME) of chemical compounds in humans and animals.

A

Physiologically Based Pharmacokinetic (PBPK) Modeling

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14
Q

Physiologically Based Pharmacokinetic (PBPK) Modeling

Importance:
_____________: PBPK models are used to inform drug dosing, predict drug interactions, and support regulatory submissions.

______________: Regulatory agencies, such as the FDA and EMA,increasingly rely on PBPK models to evaluate the safety and efficacy of new drugs.

_______________: Unlike empirical models, PBPK models can predict drug behavior in various scenarios, including different species, special populations, and disease states.

A

Drug development

Regulatory science

Predictive Power

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15
Q

Physiologically Based Pharmacokinetic (PBPK) Modeling

Mechanistic models based on __________ and _____________ data

Characteristics:
Uses multiple compartments representing actual organs and tissues

Incorporates physiological parameters like ___________rates, tissue volumes, and binding affinities

Predicts ________________ in various tissues

A

physiological and anatomical

blood flow

drug concentrations

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16
Q

______________:

Empirical, fewer compartments, Data-driven parameter fitting, Focus on plasma concentration

A

Classical PK

17
Q

_______________
Mechanistic, multiple compartments, Physiologically informed parameters, Predictive of tissue concentrations

A

PBPK

18
Q

_________________

The study of how drugs move through the body

A

Pharmacokinetics

19
Q

_________________
studies the life cycle of a drug within the body: Absorption, Distribution,Metabolism,Excretion (ADME).

A

Pharmacokinetics

20
Q

The use of drugs to treat or ameliorate disease goes back to the dawn of history

A
21
Q

Drugs are ____________ (foreign to the body), have potential to cause harm (if used inappropriately or in the wrong dose)

A

XENOBIOTICS

22
Q

The question is :What is the right dose and how you determine that?!
The medieval physician/alchemist Paracelsus ( Father of the current modern toxicology) said:

“Only THE dose makes a thing
not a poison”

“Solely THE dose determines
that a thing is not a poison”

A
23
Q

Why Study Pharmacokinetics?

Pharmacokinetics; a very powerful scientific tool. From a limited data, one can predict _______________ in the future time

No other member of the health care team is trained in ______ (gives the pharmacist unique capabilities to improve the patient’s drug therapy)

In the absence of PK information, plasma drug levels are relatively useless for ___________________

There is often a relationship between plasma concentrations and the elicited effect by the drug

A

concentrations

PK

dosage adjustment

24
Q

Why study pharmacokinetics?

PK models allow more accurate interpretation of the relationship between plasma drug levels and pharmacologic response

To evaluate the effect of disease states on __________ behavior

A

drug

25
Q

Why Study Pharmacokinetics?

As dose increase, drug concentrations in the body usually __________ (But, NOT always!)

Plasma concentrations are dictated not only by the size of the dose, but also the rate at which drug is ___________and the extent that the drug is __________ into the tissues

Due to physiological and anatomical differences, people differ in their rate of elimination, and extent of distribution

PK can be used to: understand variability in ____________,individualized dosage of drug in specific patients

A

increase

eliminated

distributed

response