TheraAgent: Self-Improving Therapeutic Agent for Precise and Comprehensive Treatment Planning
Junkai Li, Yunghwei Lai, Tianyi Zhu, Zheng Long Lee, Weizhi Ma, Yang Liu

TL;DR
TheraAgent is an iterative, self-improving framework for treatment planning that enhances safety, accuracy, and comprehensiveness by mimicking human expert revision processes and integrating a specialized evaluation module.
Contribution
It introduces TheraAgent, a novel generate-judge-refine pipeline with TheraJudge for improved, safer treatment plans, outperforming existing models on multiple metrics.
Findings
Achieves state-of-the-art accuracy and completeness on HealthBench.
Attains 86% win rate against physicians in expert evaluations.
High agreement between TheraJudge and HealthBench confirms reliability.
Abstract
Formulating a treatment plan is inherently a complex reasoning and refinement task rather than a simple generation problem. However, existing large language models (LLMs) mainly rely on one-shot output without explicit verification, which may result in rough, incomplete, and potentially unsafe treatment plans. To address these limitations, we propose TheraAgent, an agentic framework that replaces one-shot generation with an iterative generate-judge-refine pipeline. By mirroring the actual reasoning process of human experts who iteratively revise treatment plans, our framework progressively transforms coarse and incomplete drafts into precise, comprehensive, and safer therapeutic regimens. To facilitate the critical judge component, we introduce TheraJudge, a treatment-specific evaluation module integrated into the inference loop to enforce clinical standards. Experiments show TheraAgent…
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