Introduction: So far no specific oncological strategies have been validated for locally-advanced epithelial thymic tumors (TETs). We herein report the long-term results of a large multicentric experience adopting a multimodal treatment. Methods: From 01/1990 to 12/2010, the clinical data of 108 Masaoka Stage-III TETs patients surgically treated after induction therapy (IT) were retrospectively reviewed. Different IT-regimens were administered: ADOC (32 pts); PAC (38 pts); CEE (38 pts). Radiotherapy was concurrently used in 5 patients only. The end-points of the study were the evaluation of: (1) resectability; (2) overall long-term survival (LTS) and disease-free survival (DFS); and (3) independent prognostic factors. The Mann-Whitney and Fisher's exact tests were applied to test the associations. Survival analysis was performed by the Kaplan-Meier method and log-rank test. Results: Mean age and male/female ratio were 51 ± 13 years and 61/47, respectively. World Health Organization (WHO) histotype was: A in 6 pts (5.6%), AB in 18 (16.7%), B1 in 15 (13.9%), B2 in 26 (24.1%), B3 in 23 (21.3%), and thymic carcinoma in 20 (18.5%). Thirty-day mortality was 1.8%. A total of 81 (75%) had R0-resection, 11 (10.2%) R1 and 16 (14.8%) R2-resection. Adjuvant therapy was performed in 71 patients. During the follow-up a relapse of disease was observed in 38 pts(35.2%). Five-years DFS and LTS were 69.3% and 79.3%, respectively. At univariate analysis, WHO-type B3/C ("high-risk") TETs (p = 0.001) and recurrence of disease (p = 0.02) were predictors of poor LTS while only a slight correlation was found for R-status and "CHT-regimen type" (p = 0.097 and p = 0.067, respectively). At multivariate analysis WHO "high-risk" TETs (H.R.5.73;C.I.:1.77-18.57) and ADOC-regimen (H.R.2.84;C.I.:1.37-5.86) were independent predictors of poor survival. Conclusions: A multimodal treatment for Stage-III thymic tumors may achieve a rewarding survival. WHO-Histology seems to be the most important prognostic factor.
Cardillo, G., Lucchi, M., Marulli, G., Infante, M., Leuzzi, G., Mussi, A., Carleo, F., Facciolo, F., Voulaz, E., Rea, F., Rapicetta, C., Lococo, F., Induction therapy followed by surgical resection in Stage-III thimic epithelial tumors: Long-term results from a multicentre analysis of 108 cases, <<LUNG CANCER>>, 2016; 93 (MARZO): 88-94. [doi:10.1016/j.lungcan.2016.01.008] [http://hdl.handle.net/10807/152045]
Induction therapy followed by surgical resection in Stage-III thimic epithelial tumors: Long-term results from a multicentre analysis of 108 cases
Lococo, Filippo
2016
Abstract
Introduction: So far no specific oncological strategies have been validated for locally-advanced epithelial thymic tumors (TETs). We herein report the long-term results of a large multicentric experience adopting a multimodal treatment. Methods: From 01/1990 to 12/2010, the clinical data of 108 Masaoka Stage-III TETs patients surgically treated after induction therapy (IT) were retrospectively reviewed. Different IT-regimens were administered: ADOC (32 pts); PAC (38 pts); CEE (38 pts). Radiotherapy was concurrently used in 5 patients only. The end-points of the study were the evaluation of: (1) resectability; (2) overall long-term survival (LTS) and disease-free survival (DFS); and (3) independent prognostic factors. The Mann-Whitney and Fisher's exact tests were applied to test the associations. Survival analysis was performed by the Kaplan-Meier method and log-rank test. Results: Mean age and male/female ratio were 51 ± 13 years and 61/47, respectively. World Health Organization (WHO) histotype was: A in 6 pts (5.6%), AB in 18 (16.7%), B1 in 15 (13.9%), B2 in 26 (24.1%), B3 in 23 (21.3%), and thymic carcinoma in 20 (18.5%). Thirty-day mortality was 1.8%. A total of 81 (75%) had R0-resection, 11 (10.2%) R1 and 16 (14.8%) R2-resection. Adjuvant therapy was performed in 71 patients. During the follow-up a relapse of disease was observed in 38 pts(35.2%). Five-years DFS and LTS were 69.3% and 79.3%, respectively. At univariate analysis, WHO-type B3/C ("high-risk") TETs (p = 0.001) and recurrence of disease (p = 0.02) were predictors of poor LTS while only a slight correlation was found for R-status and "CHT-regimen type" (p = 0.097 and p = 0.067, respectively). At multivariate analysis WHO "high-risk" TETs (H.R.5.73;C.I.:1.77-18.57) and ADOC-regimen (H.R.2.84;C.I.:1.37-5.86) were independent predictors of poor survival. Conclusions: A multimodal treatment for Stage-III thymic tumors may achieve a rewarding survival. WHO-Histology seems to be the most important prognostic factor.
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
