Cervical Boost by Ablative Stereotactic Radiotherapy (SABR) vs Brachytherapy in Patients With Cervical Carcinoma

Arm 1 will be the experimental arm and will consist of patients with CC clinical stages IB3-IIIC1 who will be treated with CT/RT with a minimum dose of 45Gy and boost in the case of macroscopic nodes (1.8Gy per fraction from Monday to Friday) with cisplatin and cervical boost with SBRT of 28Gy in 4 fractions administered at least every 40 hours to achieve an EQD210(Gy) at PTV D90% of 83.9Gy. Arm 2 will be the control arm that will consist of patients with CC clinical stages IB3-IIIC1 and will be treated with CT/RT with a minimum dose of 45Gy and boost in the case of macroscopic nodes (1.8Gy per fraction from Monday to Friday) with cisplatin and cervical boost with high-dose-rate 3D brachytherapy with a dose of 28Gy in 4 fractions administered at least every 40 hours to achieve an EQD210(Gy) at point A of 83.9Gy.