Neoadjuvant Platinum-based Chemotherapy Followed by Radical Hysterectomy for Stage Ib2-IIb Adenocarcinoma of the Uterine Cervix - An Italian Multicenter Retrospective Study

Abstract

Aim: To assess the patterns of recurrence and clinical outcomes of patients with cervical adenocarcinoma who underwent neoadjuvant platinum-based chemotherapy (NACT) followed by radical hysterectomy.

Patients and methods: Data were retrospectively analyzed for 82 patients with International Federation of Gynecology and Obstetrics stage Ib2-IIb cervical adenocarcinoma who underwent this chemo-surgical treatment. The median follow-up of survivors was 89 months (range=5-208 months).

Results: Pathological complete response, optimal response and suboptimal response with intra-cervical residual disease were obtained in five (6%), 10 (12%) and 36 (44%) patients, respectively. Adjuvant external-beam radiotherapy with or without concurrent chemotherapy was administered to 47 patients. Nineteen (23%) out of the 82 patients experienced recurrence after a median of 12 months (range=5.3-86.8 months). Recurrent disease was pelvic in 12 (63%) patients, extra-pelvic in five (26%), and both pelvic and extra-pelvic in two (10%). According to pathological response, tumor relapsed in 10% of optimal responders, 14% of sub-optimal responders with intra-cervical residual disease, and 36% of sub-optimal responders with extra-cervical residual disease or non-responders. Five-year recurrence-free and overall survival were 77% and 84%, respectively. Patients who achieved an optimal response or sub-optimal response with intra-cervical residual disease had better 5-year recurrence-free (87% vs. 64%, p=0.017) and overall (92% vs. 74%, p=0.012) survival than those who had sub-optimal response with extra-cervical residual disease or no response. The latter had a 1.441-fold higher risk of recurrence and a 1.652-fold higher risk of death than those who obtained an optimal response or a sub-optimal response with intra-cervical residual disease.

Conclusion: NACT followed by radical hysterectomy may be an option for patients with stage Ib2-IIb adenocarcinoma of the uterine cervix.

Keywords: Adenocarcinoma of the uterine cervix; cisplatin; neoadjuvant chemotherapy; pattern of recurrence; radical hysterectomy; radiotherapy.