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Potential Benefits of Adding Alendronate, Celecoxib, Itraconazole, Ramelteon, and Simvastatin to Endometrial Cancer
1IIAIGC Study Center, Burlington, VT 05408, USA.
Abstract:
Metastatic endometrial cancer continues to be a common cause of death as of 2024, even after maximal use of all currently available standard treatments. To address this problem of metastatic cancer generally in 2025, the drug repurposing movement within oncology identifies medicines in common general medical use that have clinical or preclinical experimental data indicating that they interfere with or inhibit a specific growth driving element identified in a given cancer. The drug repurposing movement within oncology also uses data from large scale in vitro screens of thousands of drugs, looking for simple empirical growth inhibition in a given cancer type. This paper outlines the data showing that five drugs from general medical practice meet these evidence criteria for inhibition of endometrial cancer growth, the EC5 regimen. The EC5 regimen uses the osteoporosis treatment drug, alendronate; the analgesic drug, celecoxib; the antifungal drug, itraconazole; the sleep aid, ramelteon; and the cholesterol lowering drug, simvastatin. Side effects seen with these drugs are usually minimal and easily tolerated by patients.
Insights
Repurposing common drugs offers a new strategy for metastatic endometrial cancer. The EC5 regimen combines five existing medications, showing promise with minimal side effects for this difficult-to-treat cancer.
Area of Science:
- Oncology
- Pharmacology
- Drug Repurposing
Background:
- Metastatic endometrial cancer remains a significant cause of mortality despite current treatments.
- The drug repurposing movement identifies existing medications for novel anti-cancer applications.
- Targeting cancer growth drivers with repurposed drugs is a key strategy in oncology.
Purpose of the Study:
- To identify existing drugs with evidence of inhibiting endometrial cancer growth.
- To propose a novel combination regimen (EC5) for metastatic endometrial cancer.
- To evaluate the potential of repurposed drugs in managing advanced endometrial cancer.
Main Methods:
- Literature review of preclinical and clinical data for drug repurposing in endometrial cancer.
- In vitro screening of numerous drugs for endometrial cancer cell growth inhibition.
- Identification of five drugs meeting evidence criteria for the EC5 regimen.
Main Results:
- Five commonly used drugs demonstrate inhibitory effects on endometrial cancer growth.
- The EC5 regimen comprises alendronate, celecoxib, itraconazole, ramelteon, and simvastatin.
- These repurposed drugs are generally well-tolerated with minimal side effects.
Conclusions:
- The EC5 regimen presents a promising, evidence-based approach for treating metastatic endometrial cancer.
- Drug repurposing offers a viable strategy to develop new therapies for difficult-to-treat cancers.
- Further clinical investigation of the EC5 regimen is warranted for endometrial cancer patients.
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