Para-aortic Prophylactic Irradiation for Locally Advanced Cervical Cancer

This clinical trial enrolled participants with locally advanced cervical cancer with positive pelvic lymph nodes below the common iliac region diagnosed by Positron emission tomography-computed tomography(PET-CT). Participants should be able to receive concurrent cisplatin chemotherapy. No anti-tumor treatment was given before randomization. Participants will be randomly assigned to two groups. The study group will receive radiotherapy of pelvic and para-aorta, concurrent chemotherapy and brachytherapy, and the control group will receive pelvic radiotherapy, concurrent chemotherapy and brachytherapy.

Inclusion criteria

• The patients voluntarily participated in the study and signed the informed consent
• 18-75 female
• Cervical squamous cell carcinoma / adenocarcinoma / adenosquamous cell carcinoma
• According to International Federation of Gynecology and Obstetrics(FIGO) 2009 stage, stage ⅠB2 - ⅣA with positive pelvic lymph nodes and negative common iliac and paraaortic lymph nodes diagnosed by PET-CT
• Cisplatin chemotherapy is acceptable
• Eastern Cooperative Oncology Group(ECOG) score 0-1
• The expected survival was more than 6 months
• Women of childbearing age must have a pregnancy test (serum or urine) within 7 days before enrollment, and the result is negative, and they are willing to use appropriate contraceptive methods during the test
• According to the judgment of the researcher, those who can comply with the trial protocol

Exclusion criteria

• Uncontrolled severe infection
• Combined with other malignant tumor patients who need treatment and / or new diagnosis within 5 years
• The patient has received anti-tumor treatment
• Liver cirrhosis, decompensated liver disease, chronic renal insufficiency and renal failure
• History of immunodeficiency, including HIV positive or other acquired congenital immunodeficiency disease
• Myocardial infarction, severe arrhythmia and grade 2 or more congestive heart failure (NYHA classification)
• Patients with previous pelvic artery embolization
• Previous radiotherapy for pelvic malignant tumor
• There was a history of severe allergic reaction to platinum containing chemotherapy drugs
• Complications, need to be taken during the treatment of liver and kidney function damage drugs, such as tuberculosis
• The patients who could not understand the content of the experiment and could not cooperate and refused to sign the informed consent
• Patients with accompanying diseases or other special circumstances that seriously endanger the safety of patients or affect the completion of the study