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CRO Services

Drug Development Expertise Empowering Research Services for Biologics

Toxicology Studies


Toxicology Services for Lead Identification and Safety Dosage Optimization

Conducting effective in vivo toxicology research requires appropriate selection of translational animal models, extensive expertise in rational design, and precise interpretation of clinical observations and complex datasets.

 

At WuXi Biologics, we offer multi-species toxicology services, including non-human primates (NHPs), murine models, pigs, and dogs, to evaluate biologics with minimal drug-related toxicity and establish safe dosage levels. Our platform is particularly suited for diverse modalities such as bispecific T-cell engagers (TCEs) and antibody-drug conjugates (ADCs).

 

Key Features of Toxicology Services:

  • Zero leading time for non-GLP studies from one-stop protein generation, in vivo observation & sampling to ex vivo bioanalysis.
  • Fast-responsive studies using multiple models, including NHP, murine, canine, and swine
  • Comprehensive data interpretation, analysis, and optimization
  • Science-driven solutions reflecting drug-related toxicity, supported by experienced experts

WuXi Biologics multi-species toxicology studies to assess lead candidates, ensuring safe dosage levels with minimal drug toxicity.

Toxicology Service Details:

Service Item

Description

Turnaround Time

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Mouse Toxicology

Sample requirements:

1. Protein amount: BW (mouse/25 g; rat/250 g; cyno/5 kg) × animal numbers × 150%

2. Protein purity: >98%

3. Endotoxin level: <2 EU/mg

4.     Protein concentration (mg/mL): > dosing level (mg/kg)/10 (mL/kg)

 

Deliverables:

1. Cytokine analysis, CHEM/HEM/urine/ coagulation

2. Clinical observations, survival curve, BW curve

3. Necropsy report, organ weight

4. Histology: H&E staining, IHC

6-7 weeks

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Rat Toxicology

6-7 weeks

NHP Toxicology

7-8 weeks

Canine or Swine Toxicology

7-8 weeks

Case Study #1: Comprehensive Toxicology Studies for Antibody-Drug Conjugate (ADC) Characterization

This case study presents the in-life observations, blood chemistry, and hematology assessments conducted to evaluate the toxicity profiles of two antibody-drug conjugates (ADCs).

Case study on toxicology studies for ADC assessment, including in-life observations, blood chemistry, and hematology to evaluate ADC toxicity profiles.

Figure A: In-life observations of weight change, food intake, and survival rates were monitored over time in different treatment groups.

Case study on toxicology studies for ADC assessment, including in-life observations, blood chemistry, and hematology to evaluate toxicity profiles of two ADCs.

Figure B & C: Post-administration monitoring of clinical chemistry and hematology panels to assess the drug-related toxicity of ADC treatment over time.

Frequently Asked Questions for Toxicology Studies

Q: What are the typical readouts in hematology assays?

A: The hematology panel includes white blood cells, red blood cells, platelets, and subsets of immune cells such as neutrophils, basophils, and monocytes. These parameters align closely with those used in clinical studies. For example, in ADC toxicology studies, depletion of monocytes or WBCs may indicate on-target toxicity from linker-payloads like MMAE.

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