Vancomycin (** Vancocin, Firvanq (generic vancomycin is widely available) **)
Other Medications
Description
Vancomycin is an antibiotic medication. It is primarily used to treat serious bacterial infections, often those caused by bacteria resistant to other antibiotics. In the context of colorectal cancer research, vancomycin is being studied in specific clinical trials, particularly in combination with other treatments like fecal microbiota transplant (FMT) and immunotherapy drugs (like pembrolizumab or nivolumab). These trials are investigating its potential role in patients with mismatch repair deficiency (dMMR) metastatic colorectal cancer who may not respond well to standard immunotherapy. The goal is to see if vancomycin, possibly by altering the gut bacteria, can help improve the effectiveness of immunotherapy in these patients. It is important to note that vancomycin is not a standard treatment for colorectal cancer itself, but rather is being explored in research settings for specific patient populations and in combination with other therapies.
Mechanism of Action
Vancomycin works by inhibiting the growth of susceptible bacteria. It binds to the D-alanyl-D-alanine terminus of peptidoglycan precursors, which are essential for bacterial cell wall synthesis. This action disrupts the formation of the bacterial cell wall, leading to cell death. In the context of the clinical trial (NCT04729322), vancomycin is being used alongside fecal microbiota transplant (FMT). The specific mechanism by which vancomycin might influence the response to immunotherapy in dMMR CRC patients is still under investigation, but it may relate to its effects on the gut microbiome composition, potentially enhancing the activity of immunotherapy.
Side Effects
Not all side effects are listed. Side effects vary by individual. Always consult your oncologist.