Virtual Library
Start Your Search
M.W. Onaitis
Author of
-
+
MA 19 - Mesothelioma: Bench to Bedside (ID 680)
- Event: WCLC 2017
- Type: Mini Oral
- Track: Mesothelioma
- Presentations: 1
- Moderators:Dean A Fennell, Hedy Lee Kindler
- Coordinates: 10/18/2017, 11:00 - 12:30, Room 315
-
+
MA 19.09 - The Role of Neoadjuvant Chemotherapy in Patients with Malignant Pleural Mesothelioma (ID 10187)
12:00 - 12:05 | Author(s): M.W. Onaitis
- Abstract
- Presentation
Background:
The treatment of localized malignant pleural mesothelioma (MPM) involves multimodality therapy, however, there is no standard of care with respect to operative procedure and timing of chemotherapy. We analyzed data from a single institution to identify whether the use of pemetrexed-platinum neoadjuvant chemotherapy impacts survival.
Method:
Patients with histologically-proven MPM who had surgery from 1996 to 2016 were identified. Follow-up was complete for a median of 24 months. Survival was calculated from time of diagnosis to last follow up or death. Univariate and multivariate Cox proportional hazards were used.
Result:
From 1996 to 2016 we identified 376 patients. Mean age was 66+/-8 years and 54 (14%) were female. There was no difference in survival for pleurectomy/decortication or extrapleural pneumonectomy. Neoadjuvant chemotherapy significantly improved survival compared to surgery followed by chemotherapy (table 1). Multivariate analysis was significantly associated for increased survival for epithelioid histology, T-status, node positivity, and neoadjuvant chemotherapy (table 2).Table 1. Univariate Analysis
Variable (n) Median survival (mo.) P value Gender Male (322) Female (54) 13.6 17.2 P=0.043 Histology Epithelial (252) Mixed (91) Sarcomatoid (26) 18.3 12.1 6.5 P<0.0001 T stage T 1-2 (33) T 3-4 (343) 42.6 14.3 P=0.0002 N status N 0 (129) N 1-2 (113) 23.1 11.3 P<0.0001 Neoadjuvant chemotherapy Yes (153) No (223) 19.8 11.3 P<0.0001 Table 2. Cox Proportional Hazards Model
Cox proportional hazards model including histology, t-status, n-status, and neoadjuvant chemotherapy C-index: 0.69Covariate Hazard Ratio 95% CI p-value Histology (ref: Epithelioid) Biphasic Sarcomatoid ref 1.66 4.24 [ref] [1.17-2.36] [1.77-10.1] ref 0.005 0.001 T-status 3-4 vs 1-2 3.07 [1.32-7.15] 0.009 Node-positivity 1.93 [1.40-2.66] <0.001 Neoadjuvant chemotherapy 0.65 [0.47-0.91] 0.011
Conclusion:
Our results suggest that neoadjuvant chemotherapy increases survival and likely enhances the complete resection rate. These data are being evaluated in a multi-institutional cohort of five major mesothelioma programs in North America to improve guidelines for mesothelioma therapy.
Only Members that have purchased this event or have registered via an access code will be able to view this content. To view this presentation, please login, select "Add to Cart" and proceed to checkout. If you would like to become a member of IASLC, please click here.