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Updated: May 16, 2026

Intestinal Epithelial Regeneration in Response to Ionizing Irradiation
Published on: July 27, 2022
Combination of vascular disrupting agents and ionizing radiation
Céline Clémenson1, Cyrus Chargari, Eric Deutsch
1INSERM U1030, Radiothérapie Moléculaire, Université Paris XI, LABEX LERMIT, Institut Gustave Roussy, 114 rue E. Vaillant, Villejuif Cedex, France.
Abstract:
Vascular disrupting agents (VDAs) are a relatively new class of drugs that target tumor vasculature and induce tumor blood flow shutdown and subsequent necrosis in the tumor core. The first generation of these agents is actively evaluated in clinical trials, whereas new molecules are developed in order to enhance efficacy and to overcome resistance mechanisms. VDA used as a single agent only cause a moderate tumor growth delay. So, strategy aiming at combining VDA to conventional cancer treatments is undergoing extensive investigations. A special emphasis has been put on combination with chemotherapeutic agents. Besides, numerous preclinical studies have also clearly established that the association of VDA to radiotherapy can improve antitumor treatment and may lead to a therapeutic gain. However, up to date, there is a lack of clinical trials evaluating such combinations, whereas it would be of great interest since radiotherapy is widely used as anticancer treatment.
Insights
Vascular disrupting agents (VDAs) show moderate tumor growth delay alone. Combining VDAs with chemotherapy or radiotherapy may enhance cancer treatment efficacy, though clinical trials are limited.
Area of Science:
- Oncology
- Pharmacology
- Tumor Biology
Background:
- Vascular disrupting agents (VDAs) target tumor vasculature, causing blood flow shutdown and necrosis.
- First-generation VDAs are in clinical trials; new molecules aim to improve efficacy and overcome resistance.
- VDAs as single agents provide only moderate tumor growth delay.
Purpose of the Study:
- To investigate the potential of combining VDAs with conventional cancer treatments.
- To explore the synergy between VDAs and chemotherapy.
- To evaluate the combination of VDAs with radiotherapy for improved antitumor effects.
Main Methods:
- Review of existing preclinical studies on VDA combinations.
- Analysis of ongoing clinical trials involving VDAs.
- Literature search for evidence supporting VDA and radiotherapy synergy.
Main Results:
- Preclinical studies suggest VDA combination with chemotherapy enhances efficacy.
- Numerous preclinical studies indicate VDA and radiotherapy association improves antitumor treatment and therapeutic gain.
- Limited clinical trials currently exist for VDA and radiotherapy combinations.
Conclusions:
- Combining VDAs with conventional therapies like chemotherapy and radiotherapy holds significant promise for improved cancer treatment.
- Further clinical trials are warranted to validate the therapeutic benefits of VDA combinations, particularly with radiotherapy.
- The development of novel VDAs and combination strategies is crucial for overcoming treatment resistance and enhancing patient outcomes.
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