核医学と放射線治療

Sequential Adjuvant Chemotherapy and Radiotherapy in Treatment of Early Stage Endometrial Carcinoma: Single Institutional Experience

Abstract

Mutahir Tunio, Mushabbab Al Asiri, Abdul Rehman Alhadab, Yasser Bayoumi, Eyad Alsaeed, Khalid Riaz, Abdullah Amro, Abdel Salam Ismail and Abdel Aziz AlObaid

Background: Aim was to evaluate the additional benefit of adjuvant chemotherapy in patients of early stage endometrial carcinoma (EC) with adverse features.

Materials and methods: Between June 2006 and July 2011, 56 patients with EC after surgery were randomized to receive either adjuvant radiotherapy (RT) [35 patients] or adjuvant sequential chemotherapy and radiotherapy (CRT) [21 patients]. Median age was 57.6 years (40-80). Predominant stages were FIGO IB (44.6%) and IIA (26.7%). Mean body mass index was 35.9 kg/m2 (23-72).

Results: Median follow-up was 55 months (6-60). The Kaplan-Meier estimates for loco regional control (LRC), distant metastasis control (DMC) and overall survival (OS) for RT and CRT arms were; 85.7% vs. 74.2% (p 0.04), 85.7% vs. 85.7% (p 0.9) and 82.8% vs. 81% (p 0.8) respectively. Patients in CRT arm had earlier and higher pelvic recurrences {hazard ratios of 2.21 (1.45-7.85)}. Acute hematological grade3 toxicity was higher in CRT arm (9.5%) and no difference in acute or delayed non-hematological toxicities was seen between two arms.

Conclusion: Adjuvant chemotherapy in patients with EC after surgery is associated with inferior LRC and no additional benefit in DMC and OS. If adjuvant chemotherapy is considered it shall be given after adjuvant radiotherapy.