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C. Langer
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MA08 - Treatment Monitoring in Advanced NSCLC (ID 386)
- Event: WCLC 2016
- Type: Mini Oral Session
- Track: Advanced NSCLC
- Presentations: 1
- Moderators:R. Perez-Soler, T. Reungwetwattana
- Coordinates: 12/06/2016, 11:00 - 12:30, Lehar 3-4
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MA08.01 - A Highly Sensitive Next-Generation Sequencing Platform for Detection of NSCLC EGFR T790M Mutation in Urine and Plasma (ID 4637)
11:00 - 11:06 | Author(s): C. Langer
- Abstract
- Presentation
Background:
Non-invasive genotyping of NSCLC patients by circulating tumor (ct)DNA is a promising alternative to tissue biopsies. However, ctDNA EGFR analysis remains challenging in patients with intrathoracic disease, with a reported 26-57% T790M mutation detection rate in plasma (Karlovich et al., Clin Cancer Res 2016; Wakelee et al., ASCO 2016). We investigated whether a mutation enrichment NGS could improve mutation detection in plasma and urine from TIGER-X, a phase 1/2 study of rociletinib in patients with EGFR mutation-positive advanced NSCLC.
Methods:
The therascreen (Qiagen) or cobas (Roche) EGFR test was used for EGFR T790M analysis in tumor biopsies. Urine and plasma were analyzed by trovera mutation enrichment NGS assay (Trovagene).
Results:
Of 174 matched tissue, plasma and urine specimens, 145 (83.3%) were T790M+ by central tissue testing, 142 (81.6%) were T790M+ by plasma, and 139 (79.9%) were T790M+ by urine. Urine and plasma combined identified 165 cases (94.8%) as T790M+. Of 25 cases positive by ctDNA but negative/inadequate by tissue, 16 were double-positive in plasma and urine, unlikely to be false positive (Figure 1). T790M detection rate was higher for extrathoracic (n=119) vs intrathoracic (n=55) disease in plasma (87.4% vs 69.1%, p=0.006) but not urine (81.5% vs 76.4%, p=0.42). Combination of urine and plasma identified T790M in 92.7% of intrathoracic and 95.8% of extrathoracic cases (p=0.47). In T790M+ patients, objective response rate was similar whether T790M mutation was identified by tissue, plasma or urine: 37.4%, 33.1% and 36.6%, respectively. 4 of 9 patients T790M+ by urine but negative by tissue responded, and 2 of 8 patients T790M+ by plasma but negative by tissue responded.
Conclusion:
Mutation enrichment NGS testing by urine and plasma combined identified 94.8% of T790M+ cases. Combination of urine and plasma may be considered before tissue testing in EGFR TKI resistant NSCLC, including patients without extrathoracic metastases. Figure 1
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MA09 - Immunotherapy Combinations (ID 390)
- Event: WCLC 2016
- Type: Mini Oral Session
- Track: Chemotherapy/Targeted Therapy/Immunotherapy
- Presentations: 1
- Moderators:M. Sebastian, E.B. Garon
- Coordinates: 12/06/2016, 14:20 - 15:50, Strauss 2
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MA09.02 - Pembrolizumab + Carboplatin and Pemetrexed as 1st-Line Therapy for Advanced Non–Small Cell Lung Cancer: KEYNOTE-021 Cohort G (ID 5787)
14:26 - 14:32 | Author(s): C. Langer
- Abstract
- Presentation
Background:
Platinum doublet chemotherapy ± bevacizumab is standard first-line therapy for patients with advanced non–small cell lung cancer (NSCLC) without genetic aberrations. Single-agent pembrolizumab exhibits robust antitumor activity in PD-L1–positive advanced NSCLC. Cohort G of the multicenter, open-label, phase 1/2 multicohort KEYNOTE-021 study (ClinicalTrials.gov, NCT02039674) evaluated the efficacy and safety of pembrolizumab + carboplatin and pemetrexed compared with carboplatin and pemetrexed in patients with treatment-naive advanced nonsquamous NSCLC with any PD-L1 expression.
Methods:
Cohort G enrollment criteria included patients with stage IIIB/IV nonsquamous NSCLC, no activating EGFR mutation or ALK translocation, no prior systemic therapy, measurable disease, ECOG performance status 0-1, and adequate tumor sample for assessment of PD-L1 status, regardless of PD-L1 expression. Patients were randomized 1:1 to 4 cycles of pembrolizumab 200 mg Q3W + carboplatin AUC 5 (5 mg/mL/min) + pemetrexed 500 mg/m[2] Q3W or carboplatin AUC 5 (5 mg/mL/min) + pemetrexed 500 mg/m[2] Q3W alone, followed by maintenance pemetrexed ± pembrolizumab. Pembrolizumab was given for ≤35 cycles. Randomization was stratified by PD-L1 expression (positive [tumor proportion score, or TPS, ≥1%] vs negative [TPS <1%]). Crossover to pembrolizumab monotherapy was allowed for eligible patients who experienced disease progression (RECIST v1.1) on chemotherapy. Response was assessed by central imaging vendor review every 6 weeks for first 18 weeks, every 9 weeks through year 1, and every 12 weeks in year 2. The primary end point was objective response rate (ORR); secondary end points included progression-free survival (PFS), duration of response, and overall survival (OS). Comparison between arms was assessed using the stratified Miettinen and Nurminen method (ORR) and stratified log-rank test (PFS, OS).
Results:
As of January 2016, 123 patients (60 in the pembrolizumab + chemotherapy arm, 63 in the chemotherapy arm) had been enrolled in cohort G. Data on ORR, duration of response, safety, and preliminary PFS and OS results will be available by August 2016.
Conclusion:
The conclusion will be updated at the late-breaking submission stage.
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MA16 - Novel Strategies in Targeted Therapy (ID 407)
- Event: WCLC 2016
- Type: Mini Oral Session
- Track: Chemotherapy/Targeted Therapy/Immunotherapy
- Presentations: 1
- Moderators:G. Purkalne, J. Von Pawel
- Coordinates: 12/07/2016, 14:20 - 15:50, Strauss 2
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MA16.10 - Lung-MAP (S1400) Lung Master Protocol: Accrual and Genomic Screening Updates (ID 3995)
15:20 - 15:26 | Author(s): C. Langer
- Abstract
- Presentation
Background:
Lung-MAP (S1400), is a master protocol that incorporates genomic testing of tumors through a next generation sequencing (NGS) platform (Foundation Medicine) and biomarker-driven (matched) therapies for patients with squamous cell lung cancer (SCCA) after progression on first-line chemotherapy.
Methods:
The Lung-MAP trial, activated June 16, 2014, includes 3 matched- and 1 non-match study. Matched studies include: S1400B evaluating taselisib, a PI3K inhibitor, S1400C evaluating palbociclib, a CDK 4/6 inhibitor and, S1400D evaluating AZD4547, an FGFR inhibitor. The non-match study S1400I tests nivolumab + ipilimumab vs. nivolumab. Two studies have closed: S1400E evaluating rilotumumab an HGF monoclonal antibody + erlotinib closed 11/26/2014 and S1400A evaluating MEDI4736 in non-match pts, closed 12/18/2015.
Results:
From June 16, 2014 to June 15, 2016, 812 pts were screened and 292 pts registered to a study: 116 to S1400A, 27 to S1400B, 53 to S1400C, 32 to S1400D, 9 to S1400E and 55 to S1400I. Demographics: Screening was successful for 705 (87%) of screened eligible pts. Median age 67 (range 35-92); male 68%; ECOG PS 0-1 88%, PS 2 10%; Caucasian 85%, Black 9%, other 5%; never/former/current smokers 4%/58%/36%. Table 1 displays biomarker prevalence; 39% of pts matched; 33.9%, 4.8%, and 0.3% with 1, 2, and all 3 biomarkers, respectively. Tumor mutation burden (TMB) was available for 636 (90.4%) of eligible pts. The distribution of TMB is: 126 (19.8%) low (≤5 mutations Mb), 415 (65.1%) intermediate (6-19 mutations/Mb), and 96 (15.1%) high (≥20 mutations/Mb). The median TMB was 10.1.
Conclusion:
Genomic screening is feasible as part of this master protocol designed to expedite drug registration, confirm anticipated prevalence of targeted alterations in SCCA and reveal intermediate or high TMB in most (80.2%) pts. Treatment results are not yet available as patients continue to accrue. Clinical trial information: NCT02154490Total FGFR CDK PIK3CA FGFR (15.9%) 12.9% 2.4% 0.6% CDK (18.8%) 14.6% 1.8% PIK3CA (8.8%) 6.4% Biomarker prevalence and overlap.
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MTE07 - Treatment of Elderly Patients with Lung Cancer (Ticketed Session) (ID 301)
- Event: WCLC 2016
- Type: Meet the Expert Session (Ticketed Session)
- Track: Advanced NSCLC
- Presentations: 1
- Moderators:
- Coordinates: 12/05/2016, 07:30 - 08:30, Lehar 1-2
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MTE07.01 - Treatment of Elderly Patients with Lung Cancer (ID 6550)
07:30 - 08:30 | Author(s): C. Langer
- Abstract
- Presentation
Abstract not provided
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OA08 - Targeted Therapies in Brain Metastases (ID 381)
- Event: WCLC 2016
- Type: Oral Session
- Track: Advanced NSCLC
- Presentations: 1
- Moderators:D. Ball, B. Perin
- Coordinates: 12/05/2016, 16:00 - 17:30, Schubert 1
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OA08.06 - Brigatinib Activity in Patients with ALK+ NSCLC and Intracranial CNS Metastases in Two Clinical Trials (ID 4374)
16:55 - 17:05 | Author(s): C. Langer
- Abstract
- Presentation
Background:
Patients treated with crizotinib often experience disease progression in the brain. Brigatinib, an investigational next-generation ALK inhibitor, is being evaluated in an ongoing phase 1/2 trial (Ph1/2) and an ongoing pivotal phase 2 trial (ALTA).
Methods:
In Ph1/2, patients with advanced malignancies, including ALK+ NSCLC, received 30–300 mg brigatinib per day. In ALTA, patients with crizotinib-resistant advanced ALK+ NSCLC received 90 mg qd (arm A) or 180 mg qd with a 7-day lead-in at 90 mg (arm B). Efficacy (in both trials) and safety (in ALTA) are reported for ALK+ NSCLC patients with brain metastases at baseline.
Results:
In Ph1/2 and ALTA, 50/79 (63%; IRC-assessed) and 154/222 (69%; investigator-assessed) of ALK+ NSCLC patients, respectively, had baseline brain metastases. In Ph1/2 (n=50), median age was 53 years, 76% received prior chemotherapy, and 8% were crizotinib-naive. In ALTA (n=154), median age was 52 years; 75% received prior chemotherapy. As of November 16, 2015, 25/50 (50%) patients were receiving brigatinib in Ph1/2; as of February 29, 2016, 101/154 (66%) patients were receiving brigatinib in ALTA. For patients with measurable lesions, confirmed iORR was 53% in Ph1/2 and 42%/67% in ALTA A/B (Table). Among patients with only nonmeasurable lesions (Ph1/2, n=31; ALTA A/B, n=54/n=55), 35% had confirmed complete resolution of lesions in Ph1/2; 7%/18% had confirmed complete resolution in ALTA A/B. For all evaluable patients with baseline brain metastases, median intracranial PFS was 15.6 months in Ph1/2 (n=46) and 15.6/12.8 months in ALTA A/B (n=80/n=73). Most common treatment-emergent adverse events in ALTA in patients with baseline brain metastases (n=151 treated): nausea (A/B, 32%/43%), headache (30%/30%), diarrhea (18%/36%), cough (21%/30%), vomiting (25%/26%); grade ≥3 (excluding neoplasm progression): increased blood CPK (1%/11%), hypertension (4%/7%), increased lipase (3%/3%), pneumonia (1%/4%).
Conclusion:
Brigatinib has demonstrated substantial clinical activity in ALK+ NSCLC patients with brain metastases in both Ph1/2 and ALTA.IRC-Assessed Confirmed Intracranial Response Rates for Patients With Measurable Brain Metastases at Baseline
Any No rad/active[a] Ph1/2[b] n=15 n=9 iORR 8(53) 6(67) iDCR 13(87) 8(89) ALTA[c] Arm A n=26 n=19 iORR 11(42) 8(42) iDCR 22(85) 16(84) Arm B n=18 n=15 iORR 12(67) 11(73) iDCR 15(83) 14(93) Data are n(%) iDCR=intracranial disease control rate iORR=intracranial objective response rate IRC=independent review committee [a]No prior brain radiotherapy (Ph1/2); active (untreated or treated and progressed) brain lesions (ALTA) [b]NCT01449461; last scan date: October 8, 2015 [c]NCT02094573; last scan date: April 14, 2016
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P1.03 - Poster Session with Presenters Present (ID 455)
- Event: WCLC 2016
- Type: Poster Presenters Present
- Track: Radiology/Staging/Screening
- Presentations: 1
- Moderators:
- Coordinates: 12/05/2016, 14:30 - 15:45, Hall B (Poster Area)
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P1.03-019 - Imaging of Anti-PD1 Therapy Response in Advanced Non-Small Lung Cancer (ID 6316)
14:30 - 14:30 | Author(s): C. Langer
- Abstract
Background:
Therapy with immune checkpoint inhibitors can lead to unconventional tumor responses and autoimmune-mediated adverse effects resulting from immune activation. Here we sought to determine pseudo-progression and radiologically-evident anti-PD1 therapy mediated adverse events in routine clinical management in the advanced non-small cell lung cancer (NSCLC) population.
Methods:
A retrospective study was conducted of all adult NSCLC patients treated with anti-PD1 agents at our institution. Electronic medical records were reviewed to determine clinical assessment of anti-PD1 therapy response and imaging reports at restaging. Patients that did not have available follow-up imaging or clinical data while on anti-PD1-therapy were excluded from the study. Patient imaging exams with clinically suspected tumor pseudo-progression at 1[st] re-staging were analyzed to determine if subsequent imaging demonstrated pseudo-progression or true progression. The incidence of radiographically-evident adverse events attributed to anti-PD1 therapy by the oncologist were noted.
Results:
A total of 228 patients were started on anti-PD1 therapy at our institution, of which a total of 166 were evaluable. Of the evaluable patients, 80% of those received nivolumab and the remaining 20% received pembrolizumab. The overall response rate (complete response + partial response) was 23% at 1[st] restaging. Of these patients, 22 patients were suspected of pseudo-progression due to tumor enlargement and/or development of new lesions during the 1[st] 4-6 weeks of therapy and were maintained on anti-PD1 therapy. Of these patients, there were 5 confirmed cases of pseudo-progression at subsequent restaging. Radiologically-evident adverse events occurred in less than 5% of the population, primarily manifesting as pneumonitis.
Conclusion:
Pseudo-progression and radiographically-evident adverse events are important but uncommon occurrences in the setting of anti-PD1 therapy for advanced NSCLC.
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P2.03a - Poster Session with Presenters Present (ID 464)
- Event: WCLC 2016
- Type: Poster Presenters Present
- Track: Advanced NSCLC
- Presentations: 2
- Moderators:
- Coordinates: 12/06/2016, 14:30 - 15:45, Hall B (Poster Area)
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P2.03a-039 - ABOUND.70+: Interim Quality of Life (QoL) Results of nab-Paclitaxel/Carboplatin Treatment of Elderly Patients With NSCLC (ID 4286)
14:30 - 14:30 | Author(s): C. Langer
- Abstract
Background:
QoL data in elderly patients with NSCLC receiving chemotherapy are limited, although these assessments can help inform treatment decisions. Interim QoL outcomes from the ongoing ABOUND.70+ study are reported here.
Methods:
Patients aged ≥ 70 years with locally advanced/metastatic NSCLC were randomized 1:1 to first-line nab-paclitaxel 100 mg/m[2] on days 1, 8, and 15 + carboplatin AUC 6 on day 1 every 21 days or the same nab-paclitaxel/carboplatin regimen with a 1-week break between cycles. The primary endpoint is the percentage of patients with grade ≥ 2 peripheral neuropathy or grade ≥ 3 myelosuppression adverse events. QoL (an exploratory endpoint) was assessed on day 1 of each cycle using the Lung Cancer Symptom Scale (LCSS) and EuroQoL-5 Dimensions-5 Levels (EQ-5D-5L).
Results:
This analysis included 119 patients; 88 patients (74%) completed baseline + ≥ 1 postbaseline QoL assessments. The median age was 76 years (range, 70-93 years); 30% of patients were ≥ 80 years of age, 56% were male, and 99% had an ECOG PS 0-1. In general, LCSS symptom burden index and average total scores improved during cycles 1-4. The LCSS item of cough improved each cycle, with a mean change of 18.98 mm from baseline to end of cycle 4 on the visual analog scale (VAS; 95% CI, 8.42-29.54 mm). Fifty percent of patients had a clinically meaningful improvement (≥ 10 mm [VAS]) from baseline in the composite LCSS pulmonary symptom items of cough, shortness of breath, and hemoptysis. More than 80% of patients maintained/improved in each EQ-5D-5L dimension from baseline; complete resolution of baseline pain/discomfort, anxiety/depression, and self-care items was reported by ≥ 55% of patients (Table). Figure 1
Conclusion:
Clinically meaningful improvements in several QoL dimensions were observed in elderly patients with NSCLC treated with nab-paclitaxel/carboplatin. These data support the role of nab-paclitaxel/carboplatin in this patient population. NCT02151149
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P2.03a-046 - Safety and Efficacy Results From ABOUND.70+: nab-Paclitaxel/Carboplatin in Elderly Patients With Advanced NSCLC (ID 4630)
14:30 - 14:30 | Author(s): C. Langer
- Abstract
Background:
Treatment of elderly patients with NSCLC is challenging given comorbidities and reduced tolerability. First-line nab-paclitaxel/carboplatin significantly increased median OS vs paclitaxel/carboplatin in a subset of patients ≥70 years with advanced NSCLC in a phase III trial. Here we report pooled interim safety and efficacy results from the ongoing ABOUND.70+ trial evaluating 2 schedules of first-line nab-paclitaxel/carboplatin in elderly patients with advanced NSCLC.
Methods:
Patients ≥70 years with histologically/cytologically confirmed locally advanced/metastatic NSCLC received (1:1) first-line nab-paclitaxel 100 mg/m[2] qw + carboplatin AUC 6 q3w (arm A) or the same nab-paclitaxel/carboplatin dose q3w followed by a 1-week break (arm B). Stratification factors: ECOG PS (0 vs 1) and histology (squamous vs nonsquamous). Primary endpoint: percentage of patients with grade ≥2 peripheral neuropathy (PN) or grade ≥3 myelosuppression AEs. Key secondary endpoints: PFS, OS, and ORR.
Results:
As of 5/20/2016, 124/128 randomized patients were treated. Median age was 76 years, 30% were ≥80 years, 58% were male, and 86% were white. Majority of patients (70%) had ECOG PS 1, stage IV disease (82%), and nonsquamous histology (59%). Overall, 91 (73%) patients experienced grade ≥2 PN or grade ≥3 myelosuppression AEs (primary endpoint). Grade ≥2 PN was reported in 34%, and grade ≥3 neutropenia, anemia, thrombocytopenia in 52%, 21% and 21%, respectively. Interim efficacy analysis demonstrated a median PFS of 6.2 months and a median OS of 14.6 months. ORR (unconfirmed) was 43% (95% CI, 34.3-52.0), with 1 complete response; 32% had a best response of stable disease, 6% had progressive disease, and response data are pending for 19% of patients. QoL measured by LCSS and EQ-5D-5L remained stable or improved through 4 cycles.
Conclusion:
This interim analysis from ABOUND.70+ demonstrated promising activity and tolerability of nab-paclitaxel/carboplatin regimens in elderly patients with advanced NSCLC similar to prior phase III data. NCT02151149 Figure 1
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P3.02a - Poster Session with Presenters Present (ID 470)
- Event: WCLC 2016
- Type: Poster Presenters Present
- Track: Advanced NSCLC
- Presentations: 1
- Moderators:
- Coordinates: 12/07/2016, 14:30 - 15:45, Hall B (Poster Area)
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P3.02a-013 - Brigatinib in Crizotinib-Refractory ALK+ NSCLC: Central Assessment and Updates from ALTA, a Pivotal Randomized Phase 2 Trial (ID 4046)
14:30 - 14:30 | Author(s): C. Langer
- Abstract
Background:
Brigatinib, an investigational next-generation ALK inhibitor, has yielded promising activity in crizotinib-treated ALK+ NSCLC patients in a phase 1/2 trial (NCT01449461). As responses and adverse events (AEs) varied with starting dose, two brigatinib regimens are under evaluation in ALTA (NCT02094573).
Methods:
Patients with crizotinib-refractory advanced ALK+ NSCLC were randomized 1:1 to receive brigatinib at 90 mg qd (arm A) or 180 mg qd with a 7-day lead-in at 90 mg (arm B) and stratified by presence of brain metastases at baseline and best response to prior crizotinib. Primary endpoint was investigator-assessed confirmed ORR per RECIST v1.1.
Results:
222 patients were enrolled (arm A, n=112/arm B, n=110). Median age (A/B) was 51/57 years, 55%/58% were female, 74%/74% previously received chemotherapy, and 71%/67% had brain metastases. As of February 29, 2016, 64/112 (57%) patients in arm A and 76/110 (69%) patients in arm B were receiving brigatinib; median follow-up was 7.8/8.3 months. The Table shows investigator-assessed endpoints by arm and subgroup for select baseline characteristics. Independent review committee–assessed endpoints (A/B, n=112/n=110; as of May 16, 2016): confirmed ORR 48%/53%, median PFS 9.2/15.6 months. Any-grade treatment-emergent AEs (≥25% overall frequency; A/B, n=109/n=110 treated): nausea (33%/40%), diarrhea (19%/38%), headache (28%/27%), cough (18%/34%); grade ≥3 events (excluding neoplasm progression; ≥3% frequency): hypertension (6%/6%), increased blood CPK (3%/9%), pneumonia (3%/5%), increased lipase (4%/3%). A subset of pulmonary AEs with early onset (median onset: Day 2) occurred in 14/219 (6%) treated patients (3%, grade ≥3); 7/14 patients were successfully retreated. No such events occurred after escalation to 180 mg in arm B.
Conclusion:
In each arm, brigatinib yielded substantial responses and prolonged PFS, with an acceptable safety profile. 180 mg with 90 mg lead-in was not associated with increased early pulmonary events and showed a consistent improvement in efficacy, compared with 90 mg, particularly with respect to PFS.Investigator-Assessed Endpoints by Arm and Subgroup
Confirmed ORR, n/N(%) Median PFS, months Arm A B A+B A B A+B All patients 50/112(45) 59/110(54) 109/222(49) 9.2 12.9 11.1 Prior chemotherapy Yes 35/83(42) 44/81(54) 79/164(48) 8.8 12.9 11.8 No 15/29(52) 15/29(52) 30/58(52) 9.2 8.1 9.2 Race Asian 18/39(46) 18/30(60) 36/69(52) 8.8 11.1 11.1 Non-Asian 32/73(44) 41/80(51) 73/153(48) 9.2 12.9 11.8 Brain metastases at baseline Yes 31/80(39) 43/74(58) 74/154(48) 9.2 11.8 11.1 No 19/32(59) 16/36(44) 35/68(51) 7.4 15.6 15.6 Best response to prior crizotinib Partial+complete 36/71(51) 47/73(64) 83/144(58) 11.1 15.6 15.6 Other 14/41(34) 12/37(32) 26/78(33) 7.4 12.9 9.2 ORR=objective response rate PFS=progression-free survival
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P3.02c - Poster Session with Presenters Present (ID 472)
- Event: WCLC 2016
- Type: Poster Presenters Present
- Track: Advanced NSCLC
- Presentations: 3
- Moderators:
- Coordinates: 12/07/2016, 14:30 - 15:45, Hall B (Poster Area)
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P3.02c-028 - Outcomes of Nivolumab in Elderly Patients (pts) with Non-Small Cell Lung Cancer (NSCLC) (ID 5084)
14:30 - 14:30 | Author(s): C. Langer
- Abstract
Background:
In randomized trials of nivolumab in NSCLC, less than 10% of pts were ≥75 years old, and all had Eastern Cooperative Oncology Group Performance Status (ECOG PS) of 0-1. The effectiveness of nivolumab in elderly pts with NSCLC treated in routine practice has not been previously described.
Methods:
We conducted a retrospective cohort study of pts with advanced NSCLC treated with nivolumab outside of clinical trials at the University of Pennsylvania between March 2015 and March 2016. Logistic regression and Cox proportional hazards models were used to evaluate the association of age (≥75 vs. <75 years) with overall response rate (ORR), progression-free survival (PFS), and overall survival (OS), adjusting for ECOG PS (0-1 vs. ≥2), sex, smoking history [heavy (≥10 pack-years) vs. light/never (<10 pack-years)], and number of prior systemic therapies (1 vs. ≥2).
Results:
Of 175 pts treated with nivolumab, 43 (25%) were ≥75 years old and 42 (24%) had ECOG PS ≥2. Ninety-five pts (54%) were female, 147 (84%) had heavy smoking history, and 81 (46%) had received ≥2 prior systemic therapies. ORR was 19.4%, with median PFS and OS of 2.1 and 6.5 months, respectively. Age ≥75 years was not associated with ORR (OR 1.0, 95% CI 0.4-2.5; p=0.97), PFS (HR 0.71, 95% CI 0.5-1.1; p=0.12), or OS (HR 0.8, 95% CI 0.5-1.4; p=0.4; Figure 1). ECOG PS ≥ 2 was associated with lower ORR (7.1% vs. 23.3%; OR 0.25, 95% CI 0.07 – 0.88; p=0.03), inferior PFS (median 1.8 vs. 2.3 months; HR 1.9, 95% CI 1.3 – 2.8; p=0.001), and inferior OS (median 3.6 vs. 7.8 months; HR 2.6, 95% CI 1.6 – 4.1; p<0.001). Figure 1
Conclusion:
In a large NSCLC cohort treated outside of clinical trials, elderly pts gained similar benefit from nivolumab compared to younger pts. Pts with poor performance status had inferior outcomes regardless of age.
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P3.02c-029 - Immune-Related Adverse Events and Their Effect on Outcomes in Patients (pts) with Non-Small Cell Lung Cancer (NSCLC) Treated with Nivolumab (ID 5206)
14:30 - 14:30 | Author(s): C. Langer
- Abstract
Background:
Immune checkpoint inhibitors are associated with immune-related adverse events (irAEs). While the incidence of irAEs in routine practice and their effect on outcomes have been well characterized in melanoma, a similar analysis has not been previously reported in NSCLC pts treated with anti-programmed death 1 (PD-1) therapy.
Methods:
We conducted a retrospective cohort study of pts with advanced NSCLC who received nivolumab outside of clinical trials between March 2015 and March 2016 at the University of Pennsylvania. irAEs were graded using the Common Terminology Criteria for Adverse Events version 4.0. Data collected included demographics, timing and treatment of irAEs, and dates of disease progression and death or last follow-up. To analyze the effect of irAEs on progression-free survival (PFS) and overall survival (OS), landmark analyses were used beginning from 3 months after start of treatment. Pts who reached the PFS or OS endpoints prior to 3 months were excluded. Cox proportional hazards models were used to assess for differences in PFS and OS according to the occurrence of an irAE, adjusting for age, sex, and Eastern Cooperative Oncology Group Performance Status (ECOG PS).
Results:
175 pts received a median of 5 cycles of nivolumab (range, 1-24, IQR, 3-9). Median age was 68 years (range, 33-88, IQR, 60-74). Forty-six percent of pts were male; 5% had an ECOG PS ≥ 2. Twenty-eight pts (16%) experienced an irAE of any grade and 6 (3%) had a grade 3/4 irAE. Median time to onset of the irAE was 3 cycles (range, 1-18, IQR, 2-6). Of the pts who experienced an irAE, 14 (50%) were treated with systemic corticosteroids. The most common irAEs were hypothyroidism/hyperthyroidism (n=8), pneumonitis (n=6; three grade 4), colitis (n=4; one grade 3), dermatitis (n=4), and arthritis (n=2). Less common irAEs (n=1 each) included hepatitis (grade 4), aseptic meningitis (grade 3), immune thrombocytopenia, and severe hypoalbuminemia that improved with steroids. Overall response rate was 19.4% (34 of 175), and median PFS and OS were 2.1 and 6.5 months, respectively. After adjusting for age, sex, and ECOG PS, landmark analyses revealed no difference in PFS (HR 1.3, 95% CI 0.4-3.8, p=0.7) or OS (HR 0.9, 95% CI 0.3-2.7, p=0.9) stratified by the presence or absence of an irAE.
Conclusion:
In NSCLC pts treated with nivolumab in typical practice, irAEs of any grade were uncommon, and grade 3/4 irAEs were rare. The occurrence of irAEs was not associated with PFS or OS.
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P3.02c-069 - Pretreatment Neutrophil-to-Lymphocyte Ratio (NLR) Predicts Outcomes with Nivolumab in Non-Small Cell Lung Cancer (NSCLC) (ID 5218)
14:30 - 14:30 | Author(s): C. Langer
- Abstract
Background:
The NLR, a marker of systemic inflammation, has been associated with outcomes in multiple cancers. In patients (pts) with metastatic melanoma treated with ipilimumab, pre-therapy NLR < 5 has been associated with improved progression-free survival (PFS) and overall survival (OS). However, the utility of NLR as a marker of outcomes in pts with NSCLC treated with programmed-death 1 (PD-1) inhibitors is not known.
Methods:
We conducted a retrospective cohort study of pts with advanced NSCLC treated with nivolumab off clinical trials at the University of Pennsylvania between March 2015 and March 2016. NLR was calculated from complete blood counts obtained within two weeks of starting nivolumab. Pts were dichotomized based on a NLR <5 or ≥ 5. We calculated PFS and OS using the Kaplan-Meier method and used multivariate Cox proportional hazards models to adjust for sex, age, histology (squamous vs. non-squamous), Eastern Cooperative Oncology Group Performance Status (ECOG PS) (0-1 vs. ≥ 2), smoking history [heavy (≥10 pack-years) vs. light/never (<10 pack-years)], and number of prior systemic therapies (1 vs. ≥ 2).
Results:
175 pts received a median of 5 cycles of nivolumab (range, 1-24; IQR 3-9). Median age was 68 years (range 33-88, IQR 60-74), 46% of pts were male, 75% were white, 25% had an ECOG PS ≥ 2, and 46% had ≥ 2 prior systemic therapies. Eighty-four percent of pts had a ≥10 pack-year smoking history, and 76% had non-squamous histology. Median baseline NLR was 5.5 (IQR, 3.1 – 9.4), with NLR < 5 in 73 pts (42%) and NLR ≥ 5 in 102 patients (58%). Through the date of this analysis (June 1, 2016), disease progression had occurred in 124 pts (71%), and 92 pts (53%) had died, resulting in median PFS and OS of 2.1 and 6.5 months, respectively. After controlling for the aforementioned clinical and demographic factors, pts with baseline NLR<5 had significantly improved PFS (median 2.8 vs. 1.9 months; adjusted HR=0.70, 95% CI: 0.50-0.99; p = 0.04) and OS (median 8.4 vs. 5.5 months; adjusted HR=0.54, 95% CI: 0.34-0.84; p = 0.007) compared to pts with NLR ≥ 5.
Conclusion:
Pre-therapy NLR is independently associated with PFS and OS in advanced NSCLC pts treated with nivolumab. It is unclear whether this marker is predictive or prognostic. Prospective studies are warranted to determine the utility of NLR in predicting outcome in the context of other biomarkers of PD-1 therapy.
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SH06 - WCLC 2016 Scientific Highlights - Radiotherpay, Palliative Care, Regional Aspects (ID 488)
- Event: WCLC 2016
- Type: Scientific Highlights
- Track: Radiotherapy
- Presentations: 1
- Moderators:
- Coordinates: 12/07/2016, 07:30 - 08:30, Hall C7
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SH06.02 - Palliative Care/Ethics (ID 7133)
07:50 - 08:10 | Author(s): C. Langer
- Abstract
- Presentation
Abstract not provided
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