Early clinical outcome with concurrent chemotherapy and extended-field, intensity-modulated radiotherapy for cervical cancer.
OBJECTIVE
To assess the early clinical outcomes with concurrent cisplatin and extended-field intensity-modulated radiotherapy (EF-IMRT) for carcinoma of the cervix.


METHODS
Thirty-six patients with Stage IB2-IVA cervical cancer treated with EF-IMRT were evaluated. The pelvic lymph nodes were involved in 19 patients, and of these 19 patients, 10 also had para-aortic nodal disease. The treatment volume included the cervix, uterus, parametria, presacral space, upper vagina, and pelvic, common iliac, and para-aortic nodes to the superior border of L1. Patients were assessed for acute toxicities according to the National Cancer Institute Common Toxicity Criteria for Adverse Events, version 3.0. All late toxicities were scored with the Radiation Therapy Oncology Group late toxicity score.


RESULTS
All patients completed the prescribed course of EF-IMRT. All but 2 patients received brachytherapy. Median length of treatment was 53 days. The median follow-up was 18 months. Acute Grade > or = 3 gastrointestinal, genitourinary, and myelotoxicity were seen in 1, 1, and 10 patients, respectively. Thirty-four patients had complete response to treatment. Of these 34 patients, 11 developed recurrences. The first site of recurrence was in-field in 2 patients (pelvis in 1, pelvis and para-aortic in 1) and distant in 9 patients. The 2-year actuarial locoregional control, disease-free survival, overall survival, and Grade > or = 3 toxicity rates for the entire cohort were 80%, 51%, 65%, and 10%, respectively.


CONCLUSIONS
Extended-field IMRT with concurrent chemotherapy was tolerated well, with acceptable acute and early late toxicities. The locoregional control rate was good, with distant metastases being the predominant mode of failure. We are continuing to accrue a larger number of patients and longer follow-up data to further extend our initial observations with this approach.
Beriwal
Sushil
S
Department of Radiation Oncology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA. beriwals@upmc.edu
Gan
Gregory N
GN
Heron
Dwight E
DE
Selvaraj
Raj N
RN
Kim
Hayeon
H
Lalonde
Ron
R
Kelley
Joseph L
JL
Edwards
Robert P
RP
D000328:Adult; D000368:Aged; D002945:Cisplatin / Q000008:administration & dosage / Q000009:adverse effects; D003131:Combined Modality Therapy / Q000379:methods; D005260:Female; D006801:Humans; D008207:Lymphatic Metastasis; D008875:Middle Aged; D049268:Positron-Emission Tomography / Q000379:methods; D011838:Radiation-Sensitizing Agents / Q000008:administration & dosage / Q000009:adverse effects; D050397:Radiotherapy, Intensity-Modulated / Q000009:adverse effects / Q000379:methods*; D016896:Treatment Outcome; D002583:Uterine Cervical Neoplasms / Q000188:drug therapy* / Q000532:radiotherapy*
D011838:Radiation-Sensitizing Agents; D002945:Cisplatin