The “two flowers therapy”: clinical efficacy and mechanisms of a total glucosides of paeony -colchicine dual-drugs for Behçet’s disease derived from Chinese physicians’ medication experience - Report - MDSpire

Efficacy and Mechanisms of the Dual-Drug Approach Using Total Glucosides of Paeony and Colchicine for Treating Behçet’s Disease: Insights from Chinese Medical Practice

  • By

  • Can Liu

  • Lei Li

  • Qinlong Sun

  • Yixuan Zhang

  • Siyao Li

  • Jian-long Guan

  • Jianfei Cai

  • July 21, 2026

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Efficacy and Mechanisms of the Dual-Drug Approach Using TGP and Colchicine

Overview

This study investigates the efficacy and mechanisms of a dual-drug regimen combining Total Glucosides of Paeony (TGP) and colchicine for treating Behçet’s disease (BD).

Background

Behçet’s disease is a complex inflammatory condition characterized by recurrent oral and genital ulcers, significantly impacting patients' quality of life. Colchicine is a first-line treatment for BD's mucocutaneous manifestations, while the combined use of TGP has been a longstanding practice in China. Understanding the efficacy and mechanisms of this dual approach is crucial for optimizing treatment strategies.

Data Highlights

GroupOral Ulcer Prevalence (M1)Oral Ulcer Prevalence (M2)Genital Ulcer Prevalence (M1)ESR at M2
Combination Group (CG)0.0%0.0%0.9%Lower (p<0.001)
Monotherapy Group (MG)21.0%100.0%6.5%N/A

Key Findings

  • The combination of TGP and colchicine showed superior efficacy in reducing oral and genital ulcers compared to monotherapy.
  • Core targets identified include MMP9, ICAM1, FGF2, TLR4, EGFR, and NOS3, which are involved in inflammation and immune response.
  • Molecular docking revealed high affinity interactions between colchicine and key targets such as EGFR and ICAM1.
  • Both treatment groups achieved complete ulcer resolution by M3, indicating long-term efficacy.
  • Transient diarrhea was noted in the combination group, but no drug-associated cytopenia was reported.

Clinical Implications

Clinicians should consider this combination therapy.

Conclusion

The study highlights the role of TGP in combination with colchicine in treating Behçet’s disease.

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