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M. Domine
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MA 02 - Emerging Targets (ID 656)
- Event: WCLC 2017
- Type: Mini Oral
- Track: Clinical Design, Statistics and Clinical Trials
- Presentations: 1
- Moderators:Ravi Salgia, Shun Lu
- Coordinates: 10/16/2017, 11:00 - 12:30, Room 511 + 512
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MA 02.02 - Phase 2 Study of Pembrolizumab Plus CC-486 vs Pembrolizumab Plus Placebo in Previously Treated Patients with Advanced NSCLC (ID 8581)
11:05 - 11:10 | Author(s): M. Domine
- Abstract
- Presentation
Background:
Studies have demonstrated that epigenetic modifiers, such as azacitidine, may sensitize tumor cells to treatment with checkpoint inhibitors, such as pembrolizumab (pembro). Efficacy and safety results from a phase 2, randomized, double-blind study of pembro in combination with CC-486, an oral formulation of azacitidine, vs pembro+placebo (PBO) for 2L treatment of advanced NSCLC are reported.
Method:
Patients aged ≥ 18 years with stage IIIB/IV NSCLC with only 1 prior platinum-based chemotherapy were randomized 1:1 (stratified by histology) to pembro 200 mg day 1 plus either CC-486 300 mg or placebo days 1-14 of a 21-day cycle. Primary endpoint was PFS. Key secondary endpoints included OS, ORR and safety.
Result:
51 and 49 patients were randomized to the pembro+CC-486 and pembro+PBO arms. Baseline characteristics were generally balanced between treatment groups. Efficacy results are shown in Table 1. Median duration of treatment for pembro+CC-486 vs pembro+PBO was 14 vs 24 weeks, and median number of cycles was 5 vs 7. The most common grade 3/4 TEAEs associated with pembro+CC-486 were nausea (14%), vomiting (12%), asthenia (10%), and diarrhea (8%), vs diarrhea (6%), asthenia (6%) and pneumonia (6%) with pembro+PBO. Patients treated with pembro+CC-486 vs pembro+PBO experienced a higher rate of pembro dose interruptions (29% vs 16%) and discontinuations (20% vs 10%), and a higher rate of CC-486 or PBO dose interruptions (61% vs 24%) and discontinuations (33% vs 12%). Gastrointestinal events, asthenia/fatigue, and elevated transaminase levels were the most common TEAEs leading to discontinuations.
Conclusion:
The addition of CC-486 to pembro did not improve the primary endpoint of PFS compared with pembro+PBO. PD-L1 expression did not appear to be predictive of CC-486 treatment efficacy. The increase in TEAEs in the combination arm, particularly gastrointestinal (nausea and vomiting), which are known to be associated with CC-486, may have influenced treatment exposure.Efficacy Endpoints Pembro + CC-486 n = 51 Pembro + PBO n = 49 Overall PFS, median, months 3.1 4.0 ORR, n (%) 10 (19.6) 7 (14.3) By PD-L1 Level at Baseline n = 45 n = 44 PFS, median, months ≥ 50% ≥ 1%-49% 0% 5.5 1.6 3.6 8.0 1.4 3.9 ORR, % ≥ 50% ≥ 1%-49% 0% 37.5 20.0 18.5 37.5 0.0 7.1
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MA 07 - ALK, ROS and HER2 (ID 673)
- Event: WCLC 2017
- Type: Mini Oral
- Track: Advanced NSCLC
- Presentations: 1
- Moderators:Robert C. Doebele, J.C. Ho
- Coordinates: 10/17/2017, 15:45 - 17:30, Room 316
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MA 07.03 - Incidence, Predictors and Prognostic Significance of Thromboembolic Events in Patients with Advanced Alk-Rearranged NSCLCs (ID 9532)
15:55 - 16:00 | Author(s): M. Domine
- Abstract
- Presentation
Background:
The incidence of venous thromboembolic events all along the course of the disease in advanced-stage lung adenocarcinomas is approximately 15 %. It is plausible that the different molecular subtypes might influence on the risk of thrombosis. Based on our clinical observation, and supported by limited data from isolated small series, patients bearing ALK rearranged tumors could be at a particularly high-risk of thromboembolic disease.
Method:
We included consecutive patients diagnosed with advanced-stage ALK fusion positive non-small cell lung cancers (NSCLC) between January 2012 and December 2016. Clinical data were contributed by 29 Medical Centers from Spain and one large Academic Cancer Center from Portugal. Investigators at each institution retrospectively reviewed patients’ medical records. A thromboembolic event was defined as any venous or arterial thromboembolism, or both, at any site, documented by appropriate imaging studies, that occurred at the time or after advanced-stage cancer diagnosis.
Result:
A total of 241 ALK-rearranged NSCLCs were included in our study. Half of the patients were never smokers (52 %), and most had stage IV pulmonary adenocarcinomas (n=204, 85%). Baseline brain and liver metastasis were detected in 22 % and 25 % of the patients respectively. Seventy-three patients (30 %) developed thromboembolic disease. In 54 patients (74 %) thromboembolic complications occurred within the first 6 months from diagnosis. In the multivariate competing-risk regression analysis, the presence of baseline liver metastases (HR of 1.85, CI 95 % 1.09-3.15; p = 0.021) and baseline leukocyte counts > 11.0000 cells/mm3 (HR of 2.34, CI 95 % 1.43-3.82; p = 0.001) were independent predictors of thromboembolic disease. Remarkably, 50 % of the patients with either liver metastases or leukocytosis at diagnosis developed thromboembolic disease. Patients experiencing thromboembolic events had shorter median overall survival (OS) (20 months) than patients without thrombosis (36 months) (p = 0.035). In the multivariate Cox Model, thromboembolic disease remained associated with worse OS (HR of 1.70, CI 95 % 1.10-2.62; p = 0.016) when considered as a time-varying covariate. The presence of baseline thromboembolic disease (n = 24) was associated with a numerical non-significant increased risk of death (HR 1.67, CI 95 % 0.96-2.91; p = 0.068).
Conclusion:
Venous and/or arterial thromboembolic complications occur in a high proportion of patients with advanced-stage ALK fusion positive NSCLCs, particularly in the presence of baseline liver metastasis or leukocytosis. The development of thromboembolic disease is associated with a lower OS in these patients.
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P2.01 - Advanced NSCLC (ID 618)
- Event: WCLC 2017
- Type: Poster Session with Presenters Present
- Track: Advanced NSCLC
- Presentations: 1
- Moderators:
- Coordinates: 10/17/2017, 09:00 - 16:00, Exhibit Hall (Hall B + C)
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P2.01-022 - Nintedanib/Docetaxel Efficacy in Advanced Lung Adenocarcinoma Treated with 1L Chemotherapy/2L Immunotherapy in Nintedanib NPU (ID 8639)
09:00 - 09:00 | Author(s): M. Domine
- Abstract
Background:
Both antiangiogenic agents (nintedanib and ramucirumab) in combination with docetaxel and monotherapy with anti-PD-1/ PD-L1 immunotherapy have demonstrated efficacy as second-line (2L) treatment of patients with stage IV lung adenocarcinoma. However, selection of optimal candidates and the most appropriate therapeutic sequence is under discussion. Herein, we report on the efficacy of the nintedanib/docetaxel combination following first-line (1L) platinum-based chemotherapy and subsequent immunotherapy in a real-world setting.
Method:
From May 2014 to December 2015, 390 patients in 108 Spanish centers enrolled in the nintedanib Named Patient Use (NPU) program. NPU inclusion criteria were advanced lung adenocarcinoma with progressive disease following at least one line of platinum-based doublet chemotherapy. We retrospectively assessed patients that received immunotherapy (available through clinical trials or the nivolumab NPU program) prior to nintedanib/docetaxel. The aim of this analysis was to evaluate the efficacy of the nintedanib/docetaxel combination in this new clinical setting.
Result:
Eleven patients met the inclusion criteria for this analysis: 64% were men; median age of 67 years (range, 44–74); ECOG performance status 0-1 in 100% of patients; median number of treatment lines before inclusion in the nintedanib NPU program was 2 (range, 2-3); PD-L1 expression was positive (unknown cut-off) in 6 patients and was not determined in 5 patients. Median progression-free survival (PFS) of first-line platinum-based chemotherapy was 3.3 months (range 1.4-9.4): 9 patients (82%) had progressed <6 months since start of first-line treatment and 4 patients (36%) had progressed <3 months. Second-line immunotherapy was pembrolizumab (36.5%), atezolizumab (36.5%) and nivolumab (27%). Median PFS of second-line immunotherapy was 2.3 months (range, 0.7-11). The overall response rate (ORR) to second-line immunotherapy was 18% with a disease-control rate (DCR) of 45%. The median number of treatment cycles of nintedanib/docetaxel was 4.5 (range, 2-22). Median PFS of nintedanib/docetaxel post first-line chemotherapy and second-line immunotherapy was 3.2 months (range, 1.4-14.6). Best response was partial response in 4 patients (36%), stable disease in 5 patients (46%), and progressive disease in 2 patients (18%), for an ORR of 36% and a DCR of 82%.
Conclusion:
Our experience in the Spanish nintedanib NPU program in patients with adenocarcinoma NSCLC pretreated with platinum-based doublet chemotherapy and immunotherapy suggests an encouraging ORR and DCR of nintedanib/docetaxel as compared with clinical trial results. These results reinforce the importance of an optimal therapeutic sequence for managing advanced lung adenocarcinoma: 1) Nintedanib/docetaxel should be the recommended second-line treatment in early progressors and 2) Possible chemosensitization effect by immunotherapy.
