Cridanimod sodium is primarily used in the field of immunology and antiviral research. It is known for its ability to modulate the immune system, enhancing the body's natural defense mechanisms against viral infections. This compound has been studied for its potential in treating chronic viral diseases, particularly those caused by persistent viruses that evade standard immune responses. Researchers have explored its application in conditions like chronic hepatitis B and C, where it may help reduce viral load and improve immune function. Additionally, cridanimod sodium has shown promise in adjuvant therapy, where it is used to boost the effectiveness of vaccines by stimulating a stronger immune response. Its immunomodulatory properties also make it a candidate for research in autoimmune diseases and cancer immunotherapy, where it could potentially help in regulating abnormal immune activity or enhancing anti-tumor responses.