Madd Drug Discovery GuideSAFE

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---
name: madd-drug-discovery-guide
description: "Multi-agent system for automated drug discovery pipelines"
metadata:
  openclaw:
    emoji: "💊"
    category: "domains"
    subcategory: "pharma"
    keywords: ["drug discovery", "multi-agent", "molecular design", "ADMET", "virtual screening", "pharma AI"]
    source: "https://github.com/sb-ai-lab/MADD"
---

# MADD: Multi-Agent Drug Discovery Guide

## Overview

MADD (Multi-Agent Drug Discovery) is a multi-agent system that automates key stages of the drug discovery pipeline — target identification, molecule generation, property prediction (ADMET), docking simulation, and lead optimization. Specialized agents collaborate to propose, evaluate, and refine drug candidates, reducing the manual effort in early-stage drug discovery research.

## Agent Pipeline

```
Target Protein
      ↓
  Target Analysis Agent (binding site, druggability)
      ↓
  Molecule Generation Agent (de novo design)
      ↓
  Property Prediction Agent (ADMET screening)
      ↓
  Docking Agent (binding affinity estimation)
      ↓
  Optimization Agent (lead optimization cycle)
      ↓
  Report Agent (candidate ranking + rationale)
```

## Usage

```python
from madd import DrugDiscoveryPipeline

pipeline = DrugDiscoveryPipeline(
    llm_provider="anthropic",
    tools=["rdkit", "autodock_vina", "admet_predictor"],
)

# Run discovery pipeline
results = pipeline.discover(
    target_protein="6LU7",  # PDB ID (SARS-CoV-2 Mpro)
    target_site="active_site",
    constraints={
        "molecular_weight": (200, 500),    # Lipinski
        "logP": (-0.4, 5.6),
        "hbd": (0, 5),
        "hba": (0, 10),
        "tpsa": (0, 140),
    },
    num_candidates=100,
    optimization_rounds=3,
)

# Top candidates
for i, mol in enumerate(results.top_candidates[:5]):
    print(f"\nCandidate {i+1}: {mol.smiles}")
    print(f"  Docking score: {mol.docking_score:.2f} kcal/mol")
    print(f"  QED: {mol.qed:.3f}")
    print(f"  Synthetic accessibility: {mol.sa_score:.2f}")
    print(f"  ADMET: {mol.admet_summary}")
```

## ADMET Prediction

```python
from madd.agents import ADMETAgent

admet = ADMETAgent()

# Predict ADMET properties for a molecule
props = admet.predict("CC(=O)Oc1ccccc1C(=O)O")  # Aspirin

print(f"Absorption: {props.absorption}")
print(f"Distribution: {props.distribution}")
print(f"Metabolism: {props.metabolism}")
print(f"Excretion: {props.excretion}")
print(f"Toxicity: {props.toxicity}")
print(f"BBB penetration: {props.bbb_penetration}")
print(f"CYP inhibition: {props.cyp_inhibition}")
print(f"hERG liability: {props.herg_risk}")
```

## Molecule Generation

```python
from madd.agents import MolGenAgent

gen = MolGenAgent(method="reinforcement_learning")

# Generate molecules targeting a binding site
molecules = gen.generate(
    target_pdb="6LU7",
    binding_site="active_site",
    num_molecules=500,
    diversity_threshold=0.5,  # Tanimoto diversity
    constraints={
        "drug_likeness": True,  # Lipinski + Veber
        "novelty": True,        # Not in ChEMBL
    },
)

print(f"Generated: {len(molecules)}")
print(f"Drug-like: {sum(1 for m in molecules if m.is_drug_like)}")
print(f"Novel: {sum(1 for m in molecules if m.is_novel)}")
```

## Lead Optimization

```python
from madd.agents import OptimizationAgent

optimizer = OptimizationAgent()

# Optimize a lead compound
optimized = optimizer.optimize(
    lead_smiles="c1ccc(-c2ncc(F)c(N)n2)cc1",
    objectives=[
        ("docking_score", "minimize"),
        ("qed", "maximize"),
        ("sa_score", "minimize"),
        ("solubility", "maximize"),
    ],
    num_iterations=50,
    keep_scaffold=True,  # Maintain core structure
)

for mol in optimized.pareto_front[:5]:
    print(f"SMILES: {mol.smiles}")
    print(f"  Docking: {mol.docking_score:.2f}")
    print(f"  QED: {mol.qed:.3f}")
```

## Use Cases

1. **Hit discovery**: Generate novel drug candidates for targets
2. **Lead optimization**: Improve properties of promising compounds
3. **ADMET screening**: Predict pharmacokinetic properties
4. **Virtual screening**: Score large molecule libraries
5. **Drug repurposing**: Evaluate known drugs for new targets

## References

- [MADD GitHub](https://github.com/sb-ai-lab/MADD)
- [RDKit](https://www.rdkit.org/) — Chemistry toolkit
- [AutoDock Vina](https://vina.scripps.edu/) — Molecular docking

SAFEgrade B · trust 89/100 Nothing in the source contradicts what it says it does. Grade A is reserved for packages that have also passed the behavioural sandbox.

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