Search

[Background] Approximately 30% of tumor biopsies from patients with advanced-stage lung adenocarcinomas yield insufficient tissue for successful molecular subtyping. We have analyzed the clinical utility of next-generation sequencing (NGS) of cell-free circulating tumor DNA (ctDNA) in patients with inadequate tumor samples for tissue genotyping. [Patients and methods] We conducted the study in a multi-institutional prospective cohort of clinically unselected patients with advanced-stage lung adenocarcinomas with insufficient tissue for EGFR, ALK or ROS1 genotyping across 12 Spanish institutions (n = 93). ctDNA NGS was carried out by Guardant Health (Guardant360, Redwood City, CA), using a hybrid-capture-based 73-gene panel. Variants were deemed actionable if they were part of the OncoKB precision oncology knowledge database and classified in four levels of actionability based on their clinical or preclinical evidence for drug response. [Results] Eighty-three out of 93 patients (89%) had detectable levels of ctDNA. Potentially actionable level 1–4 genomic alterations were detected in 53 cases (57%), of which 13 (14%) had level 1–2A alterations (Food and Drug Administration-approved and standard-care biomarkers according to lung cancer guidelines). Frequencies of each genomic alteration in ctDNA were consistent with those observed in unselected pulmonary adenocarcinomas. The majority of the patients (62%), particularly those with actionable alterations (87%), had more than one pathogenic variant in ctDNA. The median turnaround time to genomic results was 13 days. Twelve patients (13%) received genotype-matched therapies based on ctDNA results, deriving the expected clinical benefit. Patients with co-occurring pathogenic alterations had a significantly shorter median overall survival as compared with patients without co-occurring pathogenic alteration (multivariate hazard ratio = 5.35, P = 0.01). [Conclusion] Digital NGS of ctDNA in lung cancers with insufficient tumor samples for tissue sequencing detects actionable variants that frequently co-occur with other potentially clinically relevant genomic alterations, allowing timely initiation of genotype-matched therapies., Research grant support was provided by Guardant Health Inc. (grant number C16/12/00442) for plasma-based comprehensive genomic testing. Instituto de Salud Carlos IIICM15/00196; CIBERONCCB16/12/00350;ISCIIIPI1401964PIE15/00076; RTICCR12/0036/0028; CIBERONCC16/12/00442; Regional Development European Funds Guardant Health IncC16/12/00442.

Background Metronomic chemotherapy (CT) is a therapeutic strategy based on a regular, short interval, fixed-dose schedule developed to improve disease control and reduce toxicity. Metronomic oral vinorelbine (m-OV) showed promising results. The trial randomly compared single agent m-OV vs OV standard schedule as first-line treatment in advanced NSCLC patients (pts) unfit for platinum-based CT (P-CT). Methods CT naive pts with advanced NSCLC unfit for P-CT (Creatinine clearance G2; medical conditions impairing P-CT according to physician’s opinion) were 1:1 randomly allocated to arm A: m-OV 50mg x3/week (wk) or arm B: OV 60 mg/m²/wk cycle 1, then 80 mg/m²/wk. Primary objective: progression-free survival without grade 4 toxicity (G4PFS). Secondary objectives: disease control rate (DCR), PFS, overall survival (OS), safety, quality of life. Stratification factors: stage (IIIB vs IV), age ( 70 yrs) and ECOG PS (0-1 vs 2). Results Intention-to-treat (ITT) population included 165 pts: 83 pts (A) / 82 (B). Pt characteristics were well balanced (A vs B): mean age 76.1 vs 75.9 yrs; ECOG PS 0-1: 66% vs 62%; Stage IV: 87% vs 94% pts. Median relative dose intensity was 85% vs 69%. Primary endpoint was reached (A vs B) with median G4PFS [95%CI]: 4.0 [2.6-4.3] vs 2.2 [1.5-2.9] months (mo) (p = 0.0068), HR [95%CI] = 0.63 [0.45-0.88]. Secondary efficacy end-points were as follows (A vs B): DCR 63.9% vs 63.4%; median PFS 4.3 vs 3.9 mo; median OS: 7.1 vs 7.6 mo. Treatment related AEs (r-AEs) A vs B were: all grade 61.4% vs 84%; total hematological AEs: 27.7% vs 55.6%. Most common (≥ 5%) grade 3-4 r-AEs (A vs B) were: febrile neutropenia 3.6% vs 6.2%; neutropenia 11% vs 52%; asthenia 4.8% vs 8.6%. One grade 5 AE occurred in each arm (febrile neutropenia, neutropenic sepsis). Conclusions Positive results of first randomized prospective trial: m-OV significantly improved G4PFS as first-line CT in advanced unfit NSCLC pts, with reduced toxicity. Treatment efficacy was similar in both arms. m-OV is a suitable, safe option for first-line therapy of NSCLC pts unfit to P-CT. Clinical trial identification EudraCT: 2014-003859-61. Legal entity responsible for the study Institut de Recherche Pierre Fabre- Pierre Fabre Medicament. Funding Institut de Recherche Pierre Fabre- Pierre Fabre Medicament. Disclosure A. Morabito: Speaker Bureau / Expert testimony, Speaker Bureau: Pfizer; Speaker Bureau / Expert testimony, Speaker Bureau: BMS; Speaker Bureau / Expert testimony, Speaker Bureau: Boehringer Ingelheim; Speaker Bureau / Expert testimony, Speaker Bureau: MSD; Speaker Bureau / Expert testimony, Speaker Bureau: Roche; Speaker Bureau / Expert testimony, Speaker Bureau: AstraZeneca. F. Grossi: Honoraria (self): Ely Lilly; Honoraria (self): Roche; Honoraria (self): AstraZeneca; Honoraria (self): Boehringer Ingelheim; Honoraria (self): Pierre Fabre; Honoraria (self): BMS; Honoraria (self): Amgen; Honoraria (self): MSD; Research grant / Funding (institution): AstraZeneca; Research grant / Funding (institution): BMS; Research grant / Funding (institution): MSD; Advisory / Consultancy: Ely Lilly; Advisory / Consultancy: Roche; Advisory / Consultancy: Boehringer Ingelheim; Advisory / Consultancy: AstraZeneca; Advisory / Consultancy: Pierre Fabre; Advisory / Consultancy: MSD; Advisory / Consultancy: Novartis; Advisory / Consultancy: BMS; Honoraria (self): Celgene. R. Ramlau: Advisory / Consultancy: Roche; Advisory / Consultancy: Boehringer Ingelheim; Advisory / Consultancy: Pfizer; Advisory / Consultancy: Novartis. T. Ciuleanu: Advisory / Consultancy, Travel / Accommodation / Expenses: Astellas Pharma; Advisory / Consultancy, Travel / Accommodation / Expenses: Janssen; Advisory / Consultancy, Travel / Accommodation / Expenses: BMS; Advisory / Consultancy, Travel / Accommodation / Expenses: Amgen; Advisory / Consultancy, Travel / Accommodation / Expenses: Merck Serono; Advisory / Consultancy, Travel / Accommodation / Expenses: Roche; Advisory / Consultancy, Travel / Accommodation / Expenses: Pfizer; Advisory / Consultancy, Travel / Accommodation / Expenses: Lilly; Advisory / Consultancy, Travel / Accommodation / Expenses: AstraZeneca; Advisory / Consultancy, Travel / Accommodation / Expenses: Boehringer Ingelheim; Advisory / Consultancy, Travel / Accommodation / Expenses: MSD; Advisory / Consultancy, Travel / Accommodation / Expenses: Sanofi; Advisory / Consultancy, Travel / Accommodation / Expenses: Novartis; Advisory / Consultancy, Travel / Accommodation / Expenses: Servier; Advisory / Consultancy, Travel / Accommodation / Expenses: A et D Pharma; Travel / Accommodation / Expenses: Ipsen. G.L. Ceresoli: Advisory / Consultancy: Pfizer; Advisory / Consultancy: Astellas; Advisory / Consultancy: Boehringer Ingelheim. J. Bosch Barrera: Honoraria (self): Pierre Fabre; Honoraria (self): Roche; Honoraria (self): BMS; Advisory / Consultancy: Boehringer Ingelheim. P. Landreau: Full / Part-time employment: Pierre Fabre. S. Gautier: Full / Part-time employment: Pierre Fabre. C. Ta Thanh Minh: Full / Part-time employment: Pierre Fabre. A. Camerini: Speaker Bureau / Expert testimony, expert testimony: Pierre Fabre; Travel / Accommodation / Expenses: Pierre Fabre; Travel / Accommodation / Expenses: Roche. All other authors have declared no conflicts of interest.

Background Immunotherapy has become the main therapy in advanced NSCLC patients, but recently, combination with chemotherapy in locally advanced stages is showing promising results. Many studies have described peripheral blood immune cells parameters as response biomarkers. In our study, we described the effect of neo-adjuvant chemo-immunotherapy treatment in Complete Blood Count (CBC) and Peripheral blood mononuclear cells phenotype, as well as, the association of these parameters with pathological response. Methods 46 resectable stage IIIA NSCLC patients treated with neo-adjuvant chemo-immunotherapy from NADIM clinical trial were analysed. Samples were extracted before initiating the neo-adjuvant treatment with nivolumab plus carboplatin and at the third cycle before patients underwent surgery. We classified patients in 3 subgroups of pathological response: complete (pCR), mayor ( 10% viable tumour, pIR). Results Absolute numbers of Leucocytes, Eosinophil, Monocytes, Neutrophils, Haemoglobin and Platelets from hemograms were significantly reduced after treatment. However, no changes were observed for Lymphocytes, Basophils, LDH levels or the lung immune prognostic index (LIPI). Additionally, post-treatment neutrophil-to-lymphocyte (NLR), myeloid-to-lymphoid lineage (M:L) and platelets-to-lymphocytes (PLR) ratios were decreased. Remarkably, from all the CBC absolute numbers and ratios, only PLR variation showed differences between pCR and pIR. On the other hand, percentages of T cells, B cells, NK cells and macrophages did not vary after treatment, however activation of CD4 T cells and NK cells were significantly downregulated after treatment, associated to pCR. Also, PD-1 expression on T and NK cells pre-treatment was higher on pCR compared to pIR, reaching statistical significance only on CD4 T cells. Conclusions In our study, we described predictive biomarkers of response to treatment. A higher decrease on PLR post-treatment is associated to pIR. Moreover, higher expression of PD-1 pre-treatment in CD4 T cells, as well, as a reduced activation on CD4 T cells and NK cells, after treatment are associated to pCR. Clinical trial identification NCT 03081689; EudraCT 2016-003732-20. Legal entity responsible for the study Spanish Lung Cancer Group. Funding BMS. Disclosure M. Provencio: Advisory / Consultancy: BMS; Advisory / Consultancy, Travel / Accommodation / Expenses: MSD; Advisory / Consultancy, Travel / Accommodation / Expenses: AstraZeneca; Advisory / Consultancy: Boehringer. All other authors have declared no conflicts of interest.

Background Target therapy guide by biomarkers have become the standard of care for patients with lung cancer (LC). So, identify those molecular alterations is one of the most important care needs nowdays. Our objective was to know the implementation degree of these tests in a large cohort of patients in Spain using the Thoracic Tumor Registry (TTR) of the Grupo Espanol de Cancer de Pulmon (Spanish Lung Cancer Group). Methods The TTR is an observational cohort multicenter study of LC in Spain. The study is conducted according to the Declaration of Helsinki and approved by the institutional review board of each participating institute. The registry was approved by the Spanish Drug Agency as a non-post-authorization, non-interventional study. We analyzed the molecular biomarkers considering all stages of LC. Results A total of 7,872 patients from 58 Spanish centers were enrolled between August 2016 to December 2018. The most frequent screened molecular test was the EGFR mutations, it was performed in 4,456 patients (67.5%). The proportion of biomarker evaluation has varied over time, ranging from 57.9% prior to 2012 up to 73.7% in 2017. The molecular assessment of some biomarkers reached 81.4% of these patients, with some differences between Regional Communities, regarding the molecular tests performed. Three thousand four hundred forty-six (3,446) patients (52.2%) had a stage IV at diagnosis. There was performed some biomarker test in 92% of the 2570 patients with stage IV and non-squamous histology. In those stage IV non-squamous patients, the EGFR and ALK test were performed in 92% and 79% respectively but 2 years ago ALK test was done only in 40% of the patients. ROS1 was studied in 20% of the cases. Conclusions Although no national plan exists for molecular biomarker analysis in Spain, the implementation of biomarkers tests in all the hospitals that contribute to the TTR is high. The increase in the ALK analysis in the last period is relevant. As we have some regional differences, it is important to understand the causes to improve them. Clinical trial identification NCT02941458. Legal entity responsible for the study Spanish Lung Cancer Group. Funding Novartis, Merck Sharp and Dohme, Lilly. Disclosure All authors have declared no conflicts of interest.

Background Tobacco use, mainly as cigarette smoking, is the leading cause of lung cancer. Eighty-five percent of LC occur in smokers. Understanding the Spanish smoking habits allows the government to design health care policies against this consumption. To do so, the Grupo Espanol de Cancer de Pulmon (Spanish Lung Cancer Group) made this analysis within the context of the Thoracic Tumor Registry (TTR). Methods The TTR is an observational cohort multicenter study in Spain. The study is conducted according to the Declaration of Helsinki and approved by the institutional review board of each participating site. The registry was approved by the Spanish Drug Agency, as a non-post-authorization, non-interventional study. Results Data have been collected from 6,600 LC from 58 different hospital sites across Spain. 12% (866 p) were non-smokers, 46% (3,039 p) were former smokers and 39% (2,611 p) were smokers. There were significant differences by gender, more women were non-smokers (37 % vs. 45% in males), meanwhile more former smokers were male (53.4% vs. 27.9% in women) (p-valor Conclusions Tobacco use is the leading cause of LC in Spain accounting 85% of the cases. Consumption has increased in both genders, but specially in women, in our country among lung cancer patients. Tobacco cessation campaigns, especially in women, should be a priority in western countries, like Spain, and it has to be adapted to regional differences in tobacco use. Clinical trial identification NCT02941458. Legal entity responsible for the study Spanish Lung Cancer Group. Funding Novartis, MSD, Lilly. Disclosure M. Provencio: Advisory / Consultancy: BMS; Advisory / Consultancy, Travel / Accommodation / Expenses: MSD; Advisory / Consultancy, Travel / Accommodation / Expenses: AstraZeneca; Advisory / Consultancy: Boehringer Ingelheim. All other authors have declared no conflicts of interest.