Invasive carcinoma of the uterine cervix remains the most common invasive cancer in women in many countries. Concurrent chemoradiotherapy (CCRT) is now recommended as a standard treatment for locally advanced and high-risk cervical carcinoma. However, CCRT achieves a better control of cervical cancer accompanied by greater morbidity. To avoid unnecessary over-treatment, the optimization of CCRT is of critical importance. Herein, the development of a surrogate marker for monitoring treatment efficacy as well as toxicity is pivotal to optimize CCRT.