Clinical Trials Using Flucytosine

Clinical trials are research studies that involve people. The clinical trials on this list are studying Flucytosine. All trials on the list are supported by NCI.

NCI’s basic information about clinical trials explains the types and phases of trials and how they are carried out. Clinical trials look at new ways to prevent, detect, or treat disease. You may want to think about taking part in a clinical trial. Talk to your doctor for help in deciding if one is right for you.

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  • Phase I / II Study of APS001F With Flucytosine and Maltose in Solid Tumors

    The purpose of this study is to test the safety and efficacy of an investigational drug called APS001F when given with flucytosine (5-FC) for treatment of solid tumors. APS001F is a recombinant Bifidobacterium longum (a live bacteria normally found in the digestive tract) that has been modified to produce an enzyme, cytosine deaminase (CD). The patient will first receive an injection of APS001F followed by oral 5-FC. APS001F is expected to go to the site of the tumor(s) where the agent will produce CD enzyme. CD enzyme will convert the 5-FC into 5-fluorouracil (5-FU) which is a standard chemotherapy drug for several types of cancer. Additionally, some patients will also receive 10% maltose injection, a sugar that has been shown to enhance the growth and effectiveness of APS001F in animals. This is the first study where APS001F is being used in humans.
    Location: 2 locations