Multi-Objective-Conditioned-Return-Blocks Decision Transformer: A Novel Approach for Multi-Objective De Novo Drug Design

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ID: 330883
2026
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Abstract
MOTIVATION: Designing novel molecules that simultaneously satisfy several, often conflicting, properties is a long-standing challenge in drug design. While recent deep learning advances optimize single targets effectively, navigating the trade-offs required for multiple objectives remains a difficult problem. RESULTS: We introduce the Multi-Objective-Conditioned-Return-Blocks Decision Transformer (M-GoRT), a novel architecture for multi-target de-novo drug design incorporating return-to-go blocks conditioned on goal embeddings. Trained without exploration, reward weighting or online fine-tuning, M-GoRT efficiently optimizes for multiple targets. M-GoRT achieves competitive multi-objective success rates against state-of-the-art baselines while maintaining superior structural diversity and novelty, even in high-dimensional tasks incorporating biological targets (DRD2, JNK3). In these high-dimensional tasks, M-GoRT maintains superior structural diversity and novelty establishing it as a practical tool for multi-property molecular generation. AVAILABILITY AND IMPLEMENTATION: M-GoRT is freely available as an open-source software under the MIT license at GitHub https://github.com/eyalmazuz/MolGen/tree/GCRB-DT. CONTACT: For further information, please contact mazuze@post.bgu.ac.il. SUPPLEMENTARY INFORMATION: Supplementary data associated with this research are available at Bioinformatics online.
Reference Key
openalex_W7218664982 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Eyal Mazuz, Or Gindes, Lior Rokach, Bracha Shapira
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Journal BMC Bioinformatics
Year 2026
DOI
10.1093/bioinformatics/btag731
URL
https://doi.org/10.1093/bioinformatics/btag731
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