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Galactic Therapeutics – AI Toxicity Prediction & Chemical Safety Intelligence

In-silico toxicity prediction to de-risk molecules faster and reduce animal studies.

Sep 2025
8 min read
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Galactic Therapeutics – AI Toxicity Prediction & Chemical Safety Intelligence

Project Overview

Pharmaceutical R&D must evaluate thousands of molecules for toxicity. Traditional assays are slow and expensive. Galactic Therapeutics provides an AI engine that classifies compounds as toxic/non-toxic, estimates severity, and surfaces risk mechanisms before lab work starts. It extends ideas from systems like ProTox-3.0 into a productized safety intelligence layer.

Dozens
Prediction Scope
3 Levels
Risk Bands
Pre-screen
Efficiency
3R Support
Benefit

System Architecture

Built as a toxicity prediction microservice. Accepts molecular structures (SMILES), computes descriptors/graph features, and runs them through an ensemble of QSAR and GNN models. A centralized database stores chemicals and predictions, while a React frontend visualizes risk radar plots.

System Architecture
Figure 1: System Architecture Diagram

Toxicity Prediction Engine

Microservice with QSAR and GNN models for classification

Safety Database

Stores compounds, predictions, and external annotations

Explainability Layer

Surfaces substructures and feature contributions for risk

React Visualization

Frontend component for rendering toxicity radar plots and badges

Implementation Details

Code Example

python
def predict_toxicity(smiles):
    mol = Chem.MolFromSmiles(smiles)
    descriptors = calc_descriptors(mol)
    graph_features = mol_to_graph(mol)
    
    # Ensemble prediction
    qsar_score = qsar_model.predict(descriptors)
    gnn_score = gnn_model.predict(graph_features)
    final_risk = ensemble(qsar_score, gnn_score)
    
    return explain_risk(final_risk, mol)

Agent Memory

Use external benchmarks (like Tox21) and cross-validation to avoid overfitting. Provide chemist-friendly explainability (LD50 bands, toxic substructures) to build trust.

Workflow

1

Input: Scientist submits SMILES/Structure.\n2. Processing: Engine computes molecular descriptors and graph embeddings.\n3. Prediction: QSAR/GNN ensemble assigns risk bands (Mild/Moderate/Severe).\n4. Storage: Results saved to Safety Database.\n5. Visualization: UI displays risk radar and qualified alerts.

Workflow Diagram
Figure 2: Workflow Diagram

Results & Impact

"Galactic Therapeutics gave our chemists an always-on toxicity radar. We drop risky molecules before animal studies, saving time and budget."

Faster Screening

Bulk triage of candidates before wet-lab assays.

Reduced Animal Testing

Supports 3R principles by prioritizing safer molecules.

Better Decisions

Unified risk scores help teams discuss tradeoffs transparently.

Toxicity PredictionQSARGNNDrug DiscoveryExplainable AIMachine LearningPythonReactHealthcarePharma

About the Author

Sunnykumar Lalwani, Principal Engineer - Backend and Systems Architecture

Sunnykumar Lalwani

Principal Engineer - Backend and Systems Architecture

20+
Projects Delivered
12+
Industry Experience

Sunnykumar Lalwani

Principal Engineer - Backend and Systems Architecture

Apex Neural

Sunny is a Principal Engineer and Systems Architect with over 12 years of experience designing and delivering high-performance, scalable web and backend systems. At ApexNeural, he leads core engineering initiatives while remaining deeply hands-on across frontend architecture, backend services, cloud infrastructure, and DevOps automation. He specializes in clean system architecture, API design, authentication systems, background processing, and AI-assisted workflows, while also mentoring engineers and driving long-term technical strategy.

Contributors

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