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Related Concept Videos

Toxicity Testing in Animals01:23

Toxicity Testing in Animals

Toxicity tests in animals are grounded on two main assumptions: first, the effects observed in laboratory animals can be extrapolated to humans, especially when adjusted for body surface area; second, high-dose exposure in animals is essential to identify potential human hazards from lower doses. This is based on the quantal dose-response concept, which faces the challenge of extrapolating results from relatively few test animals to much larger human populations. For example, a 0.01% incidence...
Toxicokinetics: Overview01:21

Toxicokinetics: Overview

Studies that assess how a drug is absorbed, distributed, metabolized, and excreted (ADME) at toxic doses are termed toxicokinetics. Understanding toxicokinetics helps predict adverse drug reactions (ADRs) and manage toxicity in humans.Toxicokinetics differs from pharmacokinetics mainly in the dose levels studied, with toxicokinetics focusing on higher toxic doses. The kinetics at these levels can be non-linear due to altered physiological processes. Toxicodynamics examines the relationship...
Drug Discovery: Overview01:26

Drug Discovery: Overview

Drug discovery is a multifaceted process involving extensive screening, testing, and optimization of lead compounds to identify potential new drugs for therapeutic use. It combines several approaches, including screening large numbers of natural products, chemical modification of known active molecules, identification of new drug targets, and rational design based on biological mechanisms and drug-receptor structure. These approaches are carried out in both academic research laboratories and...
Preclinical Development: Overview01:28

Preclinical Development: Overview

Preclinical development consists of a series of tests that ensure the safety and efficacy of a new therapeutic compound before it is tested in humans. There are four main phases to this process. First, safety pharmacology tests are conducted to ensure the drug does not produce any acutely harmful effects. These tests examine parameters such as bronchoconstriction, cardiac dysrhythmias, blood pressure changes, and ataxia. Next, preliminary toxicological testing is performed to determine the...
Therapeutic Drug Monitoring: Drug Analysis Methods01:26

Therapeutic Drug Monitoring: Drug Analysis Methods

Therapeutic Drug Monitoring (TDM) is a clinical practice that measures specific drug levels in a patient's blood or body tissues to tailor drug therapy effectively. This monitoring is critical for managing drugs with narrow therapeutic indices like digoxin and phenytoin, ensuring they are both safe and effective. For instance, monitoring theophylline levels in asthma patients involves precision and sensitivity to adjust doses according to individual responses to therapy, ensuring efficacy and...
In Vitro Drug Release Testing: Overview, Development and Validation01:10

In Vitro Drug Release Testing: Overview, Development and Validation

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...

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Related Experiment Video

Updated: May 17, 2026

Human Pluripotent Stem Cell Based Developmental Toxicity Assays for Chemical Safety Screening and Systems Biology Data Generation
17:28

Human Pluripotent Stem Cell Based Developmental Toxicity Assays for Chemical Safety Screening and Systems Biology Data Generation

Published on: June 17, 2015

Toxicology testing in drug discovery and development.

Michael A Dorato1, Lorrene A Buckley

  • 1Lilly Research Laboratories, Greenfield, Indiana, USA.

Current Protocols in Toxicology
|October 10, 2012
PubMed
Summary

Drug discovery toxicology studies assess drug candidate safety using animal models to predict human risk. Key evaluations include safety pharmacology, genetic toxicology, and ADME studies.

Area of Science:

  • Pharmacology and Toxicology
  • Drug Discovery and Development

Background:

  • Toxicology studies are crucial for evaluating the safety of potential drug candidates during drug discovery.
  • Understanding animal responses and translating them to human risk is a primary goal.

Purpose of the Study:

  • To outline the essential components of a typical toxicology profile in drug discovery.
  • To emphasize the importance of adhering to international guidelines and utilizing diverse toxicology models.

Main Methods:

  • Utilizing relevant animal models and validated procedures for safety evaluation.
  • Conducting a comprehensive toxicology profile including safety pharmacology, genetic toxicology, and ADME studies.
  • Incorporating reproductive, developmental, and carcinogenic potential assessments.

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Toxicity Screens in Human Retinal Organoids for Pharmaceutical Discovery
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Toxicity Screens in Human Retinal Organoids for Pharmaceutical Discovery

Published on: March 4, 2021

A High-throughput Assay for the Prediction of Chemical Toxicity by Automated Phenotypic Profiling of Caenorhabditis elegans
09:01

A High-throughput Assay for the Prediction of Chemical Toxicity by Automated Phenotypic Profiling of Caenorhabditis elegans

Published on: March 14, 2019

Related Experiment Videos

Last Updated: May 17, 2026

Human Pluripotent Stem Cell Based Developmental Toxicity Assays for Chemical Safety Screening and Systems Biology Data Generation
17:28

Human Pluripotent Stem Cell Based Developmental Toxicity Assays for Chemical Safety Screening and Systems Biology Data Generation

Published on: June 17, 2015

Toxicity Screens in Human Retinal Organoids for Pharmaceutical Discovery
07:45

Toxicity Screens in Human Retinal Organoids for Pharmaceutical Discovery

Published on: March 4, 2021

A High-throughput Assay for the Prediction of Chemical Toxicity by Automated Phenotypic Profiling of Caenorhabditis elegans
09:01

A High-throughput Assay for the Prediction of Chemical Toxicity by Automated Phenotypic Profiling of Caenorhabditis elegans

Published on: March 14, 2019

Main Results:

  • A typical toxicology profile encompasses a wide range of studies to ensure drug safety.
  • Awareness of international guidelines and various toxicology models is essential for accurate risk assessment.

Conclusions:

  • Comprehensive toxicology testing is fundamental for determining the safety of drug candidates.
  • Translating animal study findings to human risk requires a thorough understanding of toxicology principles and methodologies.