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S. Orlov
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MINI 17 - WT EGFR, Angiogenesis and OMD (ID 131)
- Event: WCLC 2015
- Type: Mini Oral
- Track: Treatment of Advanced Diseases - NSCLC
- Presentations: 1
- Moderators:R. Feld, R. Dziadziuszko
- Coordinates: 9/08/2015, 16:45 - 18:15, Mile High Ballroom 4a-4f
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MINI17.07 - Efficacy of Nintedanib/Docetaxel after Bevacizumab, Pemetrexed or Taxanes Therapy (ID 1521)
17:25 - 17:30 | Author(s): S. Orlov
- Abstract
- Presentation
Background:
Nintedanib is a triple angiokinase inhibitor of receptors for vascular endothelial growth factor (VEGF), platelet-derived growth factor and fibroblast growth factor. The randomized, placebo-controlled, Phase III LUME-Lung 1 study (NCT00805194; 1199.13) investigating nintedanib/docetaxel was the first trial of an antiangiogenic agent to demonstrate significant overall survival (OS) benefit in previously treated patients with non-small cell lung cancer (NSCLC) of adenocarcinoma histology; nintedanib/docetaxel is approved in the European Union for the treatment of patients with locally advanced, metastatic or locally recurrent NSCLC of adenocarcinoma histology after 1[st]-line chemotherapy. Here we report LUME-Lung 1 data from the adenocarcinoma population who received 1[st]-line chemotherapy containing bevacizumab, pemetrexed or taxanes.
Methods:
In LUME-Lung 1, 1314 patients with Stage IIIB/IV recurrent NSCLC received either nintedanib/docetaxel or placebo/docetaxel. Primary endpoint was centrally assessed progression-free survival (PFS); OS was a key secondary endpoint. Prior treatment with anti-VEGF agent bevacizumab was a stratification factor. Analyses of the adenocarcinoma population (n=658) according to prior treatment with bevacizumab (n=45 in either arm), pemetrexed (1[st]-line [n=126] or maintenance [n=27]) or taxanes (n=142) were performed to determine if 1[st]-line regimens could influence subsequent outcomes for nintedanib/docetaxel.
Results:
Patient characteristics were generally well-balanced across prior-treatment subgroups. For the adenocarcinoma population, there was no interaction between 1[st]-line treatment with bevacizumab, pemetrexed or taxanes and treatment outcome with nintedanib/docetaxel. Independent of pretreatment, nintedanib/docetaxel-treated adenocarcinoma patients had an OS benefit (Table). In the overall patient population, efficacy outcomes for these subgroups were also similar regardless of prior treatment. Furthermore, there was no significant effect on nintedanib/docetaxel outcomes for the few adenocarcinoma patients who received maintenance pemetrexed. The adverse event (AE) profile for nintedanib/docetaxel in each subgroup was consistent with that reported for the adenocarcinoma population in LUME-Lung 1, with diarrhea and reversible liver enzyme elevations among the more frequently reported AEs. Among patients who received nintedanib/docetaxel, there was no difference between prior-treatment subgroups in the frequency of AEs commonly associated with the prior treatment, such as hypertension with bevacizumab, mucositis with pemetrexed and peripheral neuropathy with taxanes.
Conclusion:
In LUME-Lung 1, regardless of whether a patient with NSCLC of adenocarcinoma histology received 1[st]-line chemotherapy containing bevacizumab, pemetrexed or taxanes, subsequent treatment with nintedanib/docetaxel led to improved OS.Table: OS results in patients with NSCLC of adenocarcinoma tumor histology stratified by ± prior 1st-line bevacizumab, pemetrexed or taxanes treatment
BEV, bevacizumab; CI, confidence interval; HR, hazard ratio; N/D, nintedanib/docetaxel; NSCLC, non-small cell lung cancer; OS, overall survival; PEM, pemetrexed; Pl/D, placebo/docetaxel; TAX, taxanes.No BEV BEV No PEM PEM No TAX TAX N/D Pl/D N/D Pl/D N/D Pl/D N/D Pl/D N/D Pl/D N/D Pl/D Patients, n 298 315 24 21 261 271 61 65 245 271 77 65 Median OS, months 12.6 10.6 14.9 8.7 13.4 10.8 12.0 8.0 12.2 10.3 15.1 11.6 HR (95% CI) 0.85 (0.71–1.01) 0.61 (0.31–1.20) 0.83 (0.68–1.00) 0.79 (0.53–1.18) 0.86 (0.71–1.05) 0.75 (0.51–1.11) Interaction p-value p=0.24 p=0.90 p=0.61
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MINI 30 - New Kinase Targets (ID 157)
- Event: WCLC 2015
- Type: Mini Oral
- Track: Treatment of Advanced Diseases - NSCLC
- Presentations: 1
- Moderators:K. Park, M. Villalona
- Coordinates: 9/09/2015, 18:30 - 20:00, Four Seasons Ballroom F3+F4
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MINI30.03 - Smoking Predicts Sensitivity to PARP Inhibitor, Veliparib, in Advanced NSCLC Patients (ID 1279)
18:40 - 18:45 | Author(s): S. Orlov
- Abstract
- Presentation
Background:
Tobacco-related non-small cell lung cancer (NSCLC) is associated with reduced survival and greater genomic instability. Veliparib (V) is a PARP inhibitor that augments platinum-induced DNA damage in preclinical studies, and a recent Phase 2 trial of advanced NSCLC trended to improved survival (HR 0.80; CI 0.54–1.18) when V was added to carboplatin (C) and paclitaxel (P). Here we report outcomes based on smoking status from this randomized Phase 2 study of CP with either V or placebo in advanced NSCLC.
Methods:
Patients with previously untreated advanced/metastatic NSCLC were randomized 2:1 to CP with either V at 120mg BID or placebo (randomization stratified by histology and smoking history). Cotinine was measured in patients’ plasma samples as an index of recent tobacco use.
Results:
Of 158 patients, 68% were male, and 49% had squamous NSCLC. At study entry, 60% pts were self-reported current smokers, 27% former smokers, and 13% never smoked. There were no significant differences in veliparib pharmacokinetic parameters between cotinine-high and low. Grade 3/4 AEs were elevated in current-smokers treated with VCP vs CP (66% vs. 40%, p=0.026); all-grade AEs and SAEs were similar between the two groups. The most common AEs in current-smokers were neutropenia (41% VCP; 27% CP), alopecia (36%; 33%), and anemia (31%; 40%). Figure 1 A sensitivity analysis of heavy vs light-smokers (≥ vs <39 pack-years, current or former smokers) showed advantage of veliparib in heavy-smokers: median PFS [HR(95% CI)] for VCP/CP was 7.0 vs 3.5 [0.43(0.20–0.94)] for heavy-smokers and 4.4 vs 4.2 [0.97(0.49–1.92)] for light-smokers; median OS was 12.6 vs 8.8 [0.52 (0.27–1.02)] for heavy-smokers and 9.9 vs 8.8 [0.92(0.53–1.61)] for light-smokers. A cotinine sensitivity analysis found that outcomes in cotinine-high were similar to current-smokers: PFS, cotinine-high HR was 0.38 (0.19–0.73) and cotinine-low was 0.97 (0.51–1.87); OS, cotinine-high HR was 0.52 (0.29–0.92) and cotinine-low was 1.07 (0.63–1.81). In univariate analyses assessing the influence of baseline characteristics and treatment on outcomes, smoking status and treatment had a significant interaction (p=0.0301 PFS, p=0.0118 OS). Additionally, multivariate analysis including all factors also identified current smoking as predictive of improved outcomes with VCP.
Conclusion:
Smoking status was a strong predictor of efficacy for veliparib-chemotherapy combination in advanced NSCLC. No differences in pharmacokinetics of V were seen based on plasma cotinine; toxicity of VCP was acceptable regardless of smoking history. A Phase 3 study has been initiated in patients with smoking history (M14-359).
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ORAL 34 - Quality/Survival/Prognosis in Localized Lung Cancer (ID 153)
- Event: WCLC 2015
- Type: Oral Session
- Track: Treatment of Localized Disease - NSCLC
- Presentations: 1
- Moderators:B.C. Cho, R.L. Keith
- Coordinates: 9/09/2015, 16:45 - 18:15, 201+203
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ORAL34.03 - Prognostic Factors in Early Stage NSCLC: Analysis of the Placebo Group in the MAGRIT Study (ID 24)
17:07 - 17:18 | Author(s): S. Orlov
- Abstract
- Presentation
Background:
The MAGRIT study was a worldwide, multicenter, phase-3 double-blind, randomized trial evaluating efficacy of the MAGE-A3 Cancer Immunotherapeutic in resected non-small cell lung cancer (NSCLC) (www.clinicaltrials.gov NCT00480025). We examined baseline patient and disease characteristics associated with overall survival (OS) and disease-free survival (DFS) among patients assigned to placebo.
Methods:
Study participants were ≥18 years, with histologically proven, MAGE-A3-positive stage IB, II or IIIA NSCLC (AJCC 6.0). Participants had undergone complete anatomical resection of the tumor (lobectomy or pneumectomy) with mediastinal lymph node (LN) dissection or sampling according to standard of care. Up to four cycles of platinum-based adjuvant chemotherapy were allowed. Cox regression models were used to explore characteristics that could predict DFS and OS. Factors statistically significant in univariate analysis (p<0.05) were included in multivariate models using a stepwise approach (p<0.05 to enter/remain in the model).
Results:
There were 757 placebo patients in the total treated population; median age 63 years, 76% male, 53% with squamous cell carcinoma (SCC), 34% with adenocarcinoma, 98% with performance status 0-1, 52% had received adjuvant chemotherapy.In univariate analyses, SCC, lower N-category and earlier disease stage were associated with improved DFS. Lower N-category, earlier stage and smaller tumor size were associated with improved OS. In multivariate analysis, N-category (HR 1.34, 95%CI [1.16-1.55]) and histological type (HR for SCC vs non-SCC 0.64, 95%CI [0.51-0.81]) remained significant for DFS. N-category (HR 1.47, 95%CI [1.21-1.79]) and tumor size (HR by unit increase 1.08, 95%CI [1.01-1.15]) did so for OS. No association was found between DFS or OS and age, gender, race, region, baseline performance status, quantitative MAGE-A3 expression, chemotherapy administration or type of chemotherapy, smoking status or type of LN sampling (minimal/systematic). Among patients with SCC, univariate analysis identified increased number of chemotherapy cycles and operative technique (pneumectomy) as associated with improved DFS (p<0.05). Only operative technique remained in the multivariate model. When including N-category (p<0.10 in univariate analysis) in the multivariate model, N-category and number of chemotherapy cycles were also selected. Lower N-category and smaller tumor size were significantly associated with improved OS, in univariate and multivariate analyses. Among patients with non-SCC, univariate analysis identified younger age, being female, lower N-category and earlier disease stage with improved DFS, and lower N-category, earlier disease stage and region (East Asia) with improved OS. N-category and gender, and N-category and region remained significant in the multivariate analysis for DFS and OS, respectively.
Conclusion:
This is the first prognostic factor analysis in resected NSCLC performed on data from a large, prospective randomized study. It highlighted that in terms of DFS, SCC patients have a better prognosis than non-SCC patients. N-category plays a major role in determining prognosis. Operative technique (pneumectomy), number of chemotherapy cycles (SCC) and gender (non-SCC) are also associated with outcome. Variables predictive for OS are N-category and tumor size (all) and region (non-SCC). These results confirm retrospective studies done within the context of TNM classification, but add that histopathology subtype is a strong determinant for DFS in resected NSCLC.
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P2.01 - Poster Session/ Treatment of Advanced Diseases – NSCLC (ID 207)
- Event: WCLC 2015
- Type: Poster
- Track: Treatment of Advanced Diseases - NSCLC
- Presentations: 1
- Moderators:
- Coordinates: 9/08/2015, 09:30 - 17:00, Exhibit Hall (Hall B+C)
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P2.01-096 - Randomized, Double-Blind, Placebo-Controlled Trial of Evofosfamide (TH-302) in Combination with Pemetrexed in Advanced ns-NSCLC (ID 659)
09:30 - 09:30 | Author(s): S. Orlov
- Abstract
Background:
Tumor hypoxia is associated with chemo- and radioresistance and is a prevalent characteristic in tumors of patients with non-small cell lung cancer (NSCLC). Evofosfamide (previously known as TH-302) is a hypoxia-activated prodrug designed to release the bis-alkylating DNA crosslinker bromo-isophosphoramide mustard (Br-IPM) when reduced in severe hypoxia. In a Phase 1/2 study (NCT00743379) that included a single arm evofosfamide in combination with pemetrexed in 18 patients with relapsed/refractory non-squamous NSCLC, median PFS was 7.0 months and median OS was 14.9 months. Response in 15 evaluable patients: 6 partial responses (4 confirmed), 6 stable disease and 3 progressive disease. The most common adverse events were fatigue, anemia, stomatitis and nausea.
Methods:
An international, multicenter, randomized, double-blind, placebo-controlled trial was initiated to evaluate evofosfamide in combination with pemetrexed versus placebo and pemetrexed as a potential second-line treatment for patients with non-squamous NSCLC (NCT02093962). Approximately 440 patients will be enrolled with histologically confirmed stage IIIB or IV NSCLC with non-squamous histology, measurable disease according to RECIST 1.1, and ECOG performance status 0-1. Eligible patients have recurrent or progressive disease after one prior platinum-based non-pemetrexed chemotherapy treatment for advanced disease with or without maintenance. EGFR-activating and ALK rearrangements status must be known, and if identified, patients must have received a targeted kinase inhibitor. Evofosfamide (400 mg/m[2]) or matched placebo is administered by IV infusion over 30 - 60 minutes on Day 1 and Day 8 of a 21-day cycle. Pemetrexed (500 mg/m[2]) is administered by IV infusion 2 to 4 hours after evofosfamide administration on Day 1. Overall survival (OS) is the primary endpoint; secondary endpoints include safety, progression-free survival and RECIST response rate. The study design has 85% power to detect a 40% improvement in OS with a one-sided alpha of 0.025. The first patient was enrolled in June 2014; recruitment is ongoing.
Results:
not applicable
Conclusion:
not applicable
