When AI Enters the Lab: Rethinking Toxicological Safety Assessment

The Problem: Too Much Data, Too Little Time

During a product development sprint, a toxicologist is handed a task: assess the safety of a new excipient used in a cosmetic formulation. The available data? A mix of animal study summaries, OECD guideline notes, REACH dossiers, and hundreds of peer-reviewed papers. Time? Less than a week. The pressure is on for the Toxicological Safety Assessment.

The expert starts scanning PDFs, searching for relevant NOAELs, browsing chemical databases—and somewhere along the way, realizes they've read the same paragraph twice.

Now imagine this process supported by a large language model—like AI—trained on toxicology-relevant data, capable of extracting key findings, generating risk summaries, and structuring regulatory-ready drafts. This is not just a tool. It's an empowerment.

This situation is not hypothetical—it's already happening.

What Can AI Do in Toxicological Safety Assessment?

AI, like ChatGPT (similar large language models, or LLMs), can assist toxicologists by accelerating synthesis, literature mining, report generation, and even initial read-across evaluation. It excels in natural language tasks, especially when customized for toxicology workflows.

Realistic Use Cases of ChatGPT in Toxicology

Function
Description
Rapid Literature Summarization
Summarizes full-text toxicology articles and guideline studies
Data Extraction Support
Identifies key values (e.g., NOAELs, LOAELs, target organs) from text
Regulatory Contextualization
Structure findings in the context of OECD, ECHA, or FDA requirements
Read-Across Narrative Drafting
Aids in writing justification for analog selection based on structural similarity or mechanistic evidence
AOP or MOA Mapping Support
Maps language in papers to AOP events or pathways (e.g., inflammation → fibrosis)
Risk Assessment Summary Drafting
Generates structured outputs (e.g., executive summaries, tables of findings, uncertainties)

⚠️ Important caveat: These tasks still require expert review, especially to check scientific accuracy, data fidelity, and regulatory relevance.

Example: AI-Assisted NOAEL Summary

Let’s say we feed ChatGPT the following abstract from a rodent 90-day oral toxicity study:

“Rats were administered compound X at 5, 25, or 100 mg/kg/day. At 100 mg/kg, increased liver weights and ALT levels were noted. No adverse effects were seen at 25 mg/kg. Based on these data, the NOAEL is considered to be 25 mg/kg/day.”

Output from ChatGPT:

- Study type: Subchronic 90-day oral study (rat)
- Doses tested: 5, 25, 100 mg/kg/day
- Critical effects: Hepatotoxicity at 100 mg/kg/day
- NOAEL identified: 25 mg/kg/day
- Target organ: Liver
- Study relevance: Acceptable for repeat-dose systemic toxicity endpoint

AI vs Traditional Workflow Comparison

Toxicological Safety Assessment Component
Manual Process
With AI Assistance
Literature triage
Manual review of papers
AI-assisted prioritization
Data extraction
Time-consuming, manual
Semi-automated with LLM guidance
NOAEL/LOAEL identification
Expert interpretation
NLP extraction + human confirmation
Executive summary writing
Manual drafting
Structured drafts from LLM
Read-across justification
Literature synthesis
Drafted using structural + mechanistic data prompts

Where AI Excels?

  • Speed: It processes and synthesizes long texts in seconds.
  • Consistency: Ensures uniform terminology and formatting.
  • Multilingual Support: Can handle and translate toxicological content in non-English studies.
  • Queryability: Enables real-time Q&A during dossier preparation or data gap analysis.

Where Expert Oversight is Essential for Toxicological Safety Assessment

Limitation
Consideration
Hallucinations
It may generate plausible-sounding but incorrect information
Lack of source traceability
Requires clear source tagging for regulatory credibility
Contextual misunderstanding
Can misinterpret endpoints or toxicological terminology
Regulatory compliance
Needs expert review to ensure adherence to regional requirements

LLMs like ChatGPT should be viewed as assistive tools, not decision-makers. Trained professionals must review outputs.

AI as a Collaborator, Not a Replacement

Large language models like ChatGPT are best understood as assistive systems that enhance, not replace, human expertise. They are most potent when used to reduce manual load—synthesizing large volumes of information, structuring complex narratives, and supporting documentation workflows.

A Useful Analogy: Think of ChatGPT Like Google Maps for Toxicologists

Just as Google Maps doesn’t drive your car—but shows alternate routes, avoids traffic, and estimates arrival times—ChatGPT doesn’t replace decision-making. It highlights data gaps, summarizes key findings, and suggests how to navigate complex regulatory paths. However, the toxicologist must interpret the road signs and decide the destination.

In short, ChatGPT helps you see the whole route faster—but you’re still in the driver’s seat.

Organizations can improve efficiency without compromising scientific rigor by positioning LLMs as part of the decision-support ecosystem, not as autonomous actors.

Final Thoughts

AI, like ChatGPT, is not a replacement for toxicological science, but it can amplify it by streamlining repetitive, language-heavy tasks. Proper customization and validation make it a valuable support system in the toxicologist's digital workflow.

Let's Collaborate

At Evalueserve IP and R&D, we integrate AI into our toxicology consulting pipelines to enhance efficiency, reduce turnaround times, and assist with regulatory preparedness.

Whether you're:

- Exploring AI-assisted literature mining,

- Automating NOAEL summary drafting,

- Or integrating LLMs with existing NAM tools (e.g., QSAR, read-across, AOP mapping)—we can help.

Connect with us to explore how AI can support your Toxicological Safety Assessment.

Let's shape the future of toxicology—together.

Talk to One of Our Experts

Get in touch today to find out about how Evalueserve can help you improve your processes, making you better, faster and more efficient.  

Written by

Hansprabha Mudgal
Toxicology Consultant, CSRA

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