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C. Visseren-Grul



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    MO12 - Prognostic and Predictive Biomarkers III (ID 96)

    • Event: WCLC 2013
    • Type: Mini Oral Abstract Session
    • Track: Medical Oncology
    • Presentations: 1
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      MO12.02 - Association between Gene Expression Profiles and Clinical Outcome of Pemetrexed-Based Treatment in Patients with Advanced Non-Squamous Non-Small Cell Lung Cancer: Exploratory Results from a Phase II Study (ID 185)

      10:35 - 10:40  |  Author(s): C. Visseren-Grul

      • Abstract
      • Presentation
      • Slides

      Background
      We report exploratory gene expression profiling data from a prospective single-arm Phase-II-study in patients with non-squamous non-small cell lung cancer (nsNSCLC) treated with pemetrexed. Main results indicated a significant association of low thymidylate-synthase (TS) expression with longer PFS and OS [1].

      Methods
      Treatment-naive nsNSCLC patients (Stage IIIB/IV) received 4 cycles of first-line pemetrexed/cisplatin; non-progressing patients continued on pemetrexed maintenance [1]. Diagnostic tissue samples were used to assess TS expression (nucleus/cytoplasm) by immunohistochemistry (IHC, H scores), and to extract total mRNA for expression-array profiling (expression of 1,030 genes summarized from 60,000 transcripts). Cox proportional-hazard models were applied to explore the association between each gene and PFS/OS, mRNA gene expression was used both as continuous and binary (cutpoint: median) variable. Unadjusted p-values (significance level =0.01) and false discovery rates (FDR) were calculated. Genes significantly correlated with PFS/OS were further correlated with TS-protein expression (Spearman rank test). Finally, unsupervised clustering was applied to all samples with mRNA expression (n=51) for all 1,030 selected array genes and an overlapping 870-gene subset associated with adenocarcinoma (ADC, n=47) previously described [2].

      Results
      51/70 (72.9%) biopsies were evaluable; 9 of 1,030 genes were significantly associated with PFS/OS (unadjusted p<0.01). 8/9 genes were negatively correlated with nuclear TS expression; the test was statistically significant for 5/8 genes (unadjusted p<0.01, Table 1). None of these genes has a known relationship to folate metabolism. Cluster analysis of all 51 samples based on 1,030 genes revealed no clear trend regarding PFS/OS. Cluster-analysis of 47 ADC samples identified 3 groups (n=21, 11 and 15 patients, respectively) with median (95%CI) PFS and OS of 8.1 (6.9, not estimable [NE]) and 20.3 (17.5, N.E) months; 2.4 (1.2, NE) and 4.3 (1.4, NE) months; and 4.4 (1.2, NE) and 8.3 (3.9, NE) months, respectively. Figure 1

      Conclusion
      This exploratory analysis provides insights on key genes potentially linked to low TS expression. Nine genes were significantly associated with PFS/OS; however such association cannot be differentiated as prognostic or predictive since this study is single arm. Further research would be needed to understand the relationship of these markers with clinical outcomes. [1] Nicolson et al, J Thorac Oncol 2013, May 29 [Epub]. [2] Wilkerson et al, PLoS One 2012;7(5):e36530.

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    MO24 - NSCLC - Chemotherapy III (ID 110)

    • Event: WCLC 2013
    • Type: Mini Oral Abstract Session
    • Track: Medical Oncology
    • Presentations: 1
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      MO24.08 - Survival outcomes among NSCLC patients in Europe receiving platinum-based therapies as first-line treatment: results from the FRAME observational study (ID 1944)

      11:10 - 11:15  |  Author(s): C. Visseren-Grul

      • Abstract
      • Presentation
      • Slides

      Background
      FRAME was a European non-interventional prospective observational study of patients with advanced or metastatic non-small cell lung cancer (NSCLC) initiating platinum-based therapies as first-line treatment (FLT).

      Methods
      Patients were enrolled between April 2009 and February 2011. Consenting adult NSCLC (Stage III/IV) patients initiating FLT with a platinum-based doublet chemotherapy, with or without an additional targeted agent, were eligible for the study. The choice of FLT was left to physician discretion, as per routine clinical practice. The primary objective of FRAME was to evaluate overall survival (OS) among different platinum-based treatment cohorts in patients with and without additional targeted therapy. Secondary objectives included the evaluation of OS in patients with different histological subtypes of NSCLC. Survival outcomes were assessed using Kaplan-Meier analysis, and unadjusted estimates are presented.

      Results
      A total of 1564 eligible patients from 11 EU countries were observed. Patient cohorts were: pemetrexed + platinum, gemcitabine + platinum, vinorelbine + platinum, taxanes + platinum and other therapy + platinum. Table 1 shows a subset of baseline patient characteristics, which varied across several parameters in the treatment cohorts, including age, performance status (PS), stage and histology. The median OS across the 4 main treatment cohorts was 10.3 months (95% CI: 9.5-11.2). A subset of overall survival estimates in the different treatment cohorts is shown in Table 1.

      Table 1. Select baseline patient characteristics and overall survival
      Baseline Patient Characteristics Overall Survival Estimates (unadjusted)
      Treatment Cohort[a] Age ≥70 Years (%) ECOG PS of 2/3 (%) Stage IV (%) Non-squamous Histology (%) All patients Median OS in Months (95% CI) Non-squamous Median OS in Months (95% CI) Non-squamous Cisplatin[b] Median OS in Months (95% CI)
      Pemetrexed + Platinum[b ](n=569) 23 18 86 97 10.7 (9.4-12.3) [n=569] 10.6 (9.4-12.0) [n=553] 11.6 (9.9-13.8) [n=374]
      Gemcitabine + Platinum[b] (n=360) 35 11 74 56 10.0 (8.4-11.8) [n=360] 8.4 (7.0-10.6) [n=201] 8.4 (6.7-10.8) [n=107]
      Taxanes + Platinum[b ](n=295) 36 23 75 64 9.1 (8.0-11.3) [n=295] 8.1 (7.4-10.1) [n=189] 9.6 (7.1-14.1) [n=44]
      Vinorelbine + Platinum[b] (n=300) 28 15 67 53 10.7 (8.9-12.8) [n=300] 10.1 (8.0-13.1) [n=160] 9.9 (7.2-13.4) [n=91]
      [a]A fifth cohort, the ‘other’ + platinum cohort contained a small number of subjects (n=40) and it was not included in the analyses presented here [b]Cisplatin is the platinum agent in the EMA approved prescription drug label

      Conclusion
      This observational study of first-line treatment for advanced NSCLC provides data describing patients and their survival outcomes in a real-world European practice setting between 2009 and 2012.

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    MO25 - NSCLC - Combined Modality Therapy II (ID 112)

    • Event: WCLC 2013
    • Type: Mini Oral Abstract Session
    • Track: Mesothelioma
    • Presentations: 1
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      MO25.03 - Safety data from a Phase II study of pemetrexed (PEM) and cisplatin (CIS) with concurrent thoracic radiation after PEM+CIS induction in patients with unresectable locally advanced (LA) Non Squamous Non-Small Cell Lung Cancer (NS-NSCLC) (ID 226)

      10:40 - 10:45  |  Author(s): C. Visseren-Grul

      • Abstract
      • Presentation
      • Slides

      Background
      This single-arm multicenter Phase II study investigated the efficacy and safety of PEM+CIS induction chemotherapy (CT) followed by full-dose PEM+CIS with concurrent radiotherapy (RT) in patients with LA NS-NSCLC. The 1-year progression-free survival (PFS) rate (primary endpoint) was 51.3% (ESMO 2013). Here, we report the safety data for induction CT and concurrent CT+RT.

      Methods
      Patients with unresectable Stage IIIA/IIIB NS-NSCLC (AJCC Version 6), ECOG-PS 0-1 and forced expiratory volume (FEV) >50% of predicted normal FEV received 2 cycles of PEM 500mg/m[2] + CIS 75mg/m[2] on Day 1, every 21 days. Patients who did not progress, with no residual neurological toxicity >Grade (G)2, ECOG-PS 0-1 and lung V20<35% were candidates to receive 2 cycles of the same full-dose PEM+CIS regimen with concurrent thoracic RT of 2Gy/fraction, 5d/week for 7wks (66Gy total). All patients received vitamin supplementation/dexamethasone prophylaxis as per PEM-label.

      Results
      90 patients were enrolled in 4 European countries, 75 (83.3%) completed induction CT and started concurrent CT+RT. Characteristics of 90/75 patients starting induction/concurrent therapy: median age 61/62yrs, male 57%/53%, ECOG-PS 0 66%/65%, mean(SD) FEV 2.3(0.62)/2.3(0.59)L, adenocarcinoma 90%/92%, Stage IIIA 36%/37%. 63 of 75 patients starting concurrent CT+RT (84.0%) received all 4 CT cycles and full dose RT. Median PEM+CIS dose intensities were 90-92% during induction and >97% during concurrent CT+RT, median RT dose was 66Gy (only 6 patients <60Gy). One patient died from study-drug-related toxicity (enteritis) during Cycle 4. Four patients discontinued due to non-fatal drug- or radiation-related adverse events (AEs), 1 on induction CT (renal failure), 3 on concurrent CT+RT (hypoacusis, 2 patients with radiation esophagitis). During induction/concurrent therapy, 8 of 90 patients (8.9%)/12 of 75 patients (16.0%) had ≥1 CT dose delay due to AEs, mainly neutropenia (n=5/6). 2/6 patients (2.2%/8.0%) required CT dose reductions. 13 of 75 patients (17.3%) experienced AEs requiring interruption of radiation, mainly radiation esophagitis (9.3%). Common G1-4 toxicities are presented in the table. 41.3% of patients reported ≥1 G3/4 toxicity during concurrent CT+RT, mainly esophagitis (12.0%), neutropenia (10.7%) and leukopenia (9.3%). G3 mucositis, G3 dysphagia and G3 acute pneumonitis were each reported by 1 patient (1.3%); 6 patients (8.0%) required blood-cell transfusions. Figure 1

      Conclusion
      PEM+CIS induction CT followed by full-dose PEM+CIS with concurrent thoracic RT was well tolerated in this study. Incidences of both G3/4 and low-grade toxicities were low, not only during PEM+CIS induction CT, but also during the subsequent 2 cycles of full-dose PEM+CIS CT with concurrent thoracic RT.

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    P2.08 - Poster Session 2 - Radiotherapy (ID 198)

    • Event: WCLC 2013
    • Type: Poster Session
    • Track: Radiation Oncology + Radiotherapy
    • Presentations: 1
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      P2.08-019 - Palliative radiation during pemetrexed plus cisplatin first-line treatment or pemetrexed continuation maintenance treatment in advanced nonsquamous non-small cell lung cancer (NSCLC): A report of patient safety in the PARAMOUNT trial (ID 2364)

      09:30 - 09:30  |  Author(s): C. Visseren-Grul

      • Abstract

      Background
      Patient (pt) safety is of utmost concern to radiation oncologists. Pemetrexed (Pem) is an effective and well-tolerated treatment for advanced nonsquamous NSCLC. The safety of palliative radiation (XRT) during Pem treatment was studied in this subset of pts in the PARAMOUNT trial.

      Methods
      In PARAMOUNT, a randomized, double-blind study, 939 pts received 4 cycles of induction Pem (500 mg/m[2]) + cisplatin (Cis) (75 mg/m[2]) on day 1 every 21 days. Patients without progressive disease (PD) and with an Eastern Cooperative Oncology Group performance status (ECOG PS) of 0/1 (n=539) were then randomized (2:1) to maintenance Pem (500 mg/m[2], day 1) + best supportive care (BSC) (Arm A) or placebo + BSC (Arm B) until PD. Best supportive care (BSC) was defined as treatment without a specific antineoplastic regimen and included palliative XRT to extrathoracic structures. Safety was assessed via the incidence of adverse events (AEs) by maximum grade (Gr; CTCAE, v3).

      Results
      The 55 pts who received palliative XRT to extrathoracic structures during treatment had stage IV nonsquamous NSCLC. The majority of pts were male (58%), with an ECOG PS of 1 (75%). Patients’ median age was 61 yrs (range, 32-74) yrs, with 13% of pts ≥70 yrs. The most common location irradiated was bone (43/55 pts). Non-bone locations were: lymph node (3), mediastinum (2), chest (2), and adrenal gland, intraocular, lung, brain, and abdomen (1 each). Forty-five pts received XRT during Pem+Cis induction, 3 of whom also received XRT during maintenance. Seven pts (Arm A) and 6 pts (Arm B) received palliative XRT during maintenance. Total XRT doses ranged from 8-66 Gy. The time interval between day 1 of last chemotherapy cycle and the start of palliative XRT ranged from 0-28 days. Of 55 pts, 12 (22%) had ≥1 AE(s) during XRT considered possibly related to Pem and/or XRT (Table 1). All pts except 1 experienced the AE during induction. The most common AE was Gr 2 anemia. Three pts had Gr 3/4 anemia. Five pts had nonhematologic toxicities. One pt in Arm B, who received a total dose of 20 Gy in the hip during maintenance treatment, had pneumonitis. No AEs were reported for pts who received palliative XRT during Pem maintenance treatment.

      Table 1: AEs during palliative XRT or within 2 weeks after the end of the last fraction in both phases of the PARAMOUNT trial.
      Pts receiving palliative XRT (N=55)
      Patients with AEs during induction and/or maintenance (n=12, 22%)
      Toxicity Gr 1, n (%) Gr 2, n (%) Gr 3-4, n (%)
      Hematologic
      Hemoglobin 1 (1.8) 4 (7.3) 3 (5.5)
      Leukocytes 0 2 (3.6) 1 (1.8)
      Platelets 0 1 (1.8) 0
      Nonhematologic
      Rash/dermatitis 1 (1.8) 1 (1.8) 0
      Rash/desquamation 1 (1.8) 1 (1.8) 0
      Pneumonitis 0 0 1 (1.8)*
      *Pneumonitis was the only event reported for a pt during the maintenance phase. The pt was assigned to placebo.

      Conclusion
      Conclusions: In PARAMOUNT, palliative XRT is well tolerated and can be safely administered at low and high doses during Pem+Cis chemotherapy or Pem monotherapy to pts with advanced nonsquamous NSCLC.

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    P2.10 - Poster Session 2 - Chemotherapy (ID 207)

    • Event: WCLC 2013
    • Type: Poster Session
    • Track: Medical Oncology
    • Presentations: 2
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      P2.10-004 - Addition of bevacuzimab (BEV) to pemetrexed (PEM) plus cisplatin (CIS) induction and PEM maintenance therapy in 1st line setting for treatment of advanced nonsquamous non small cell lung cancer (NS-NSCLC) - final results and safety update from a phase 2 study (ID 234)

      09:30 - 09:30  |  Author(s): C. Visseren-Grul

      • Abstract

      Background
      1st line PEM+CIS induction chemotherapy (CT) followed by PEM maintenance and 1st line BEV-based CT followed by BEV maintenance offer clinical benefit (progression-free and overall survival; PFS and OS) in NS-NSCLC. This study explored efficacy and safety of 1st line induction PEM+CIS+BEV followed by maintenance PEM+BEV.

      Methods
      Patients with advanced NS-NSCLC and ECOG performance status (PS) 0-1 were planned to receive 4 cycles PEM 500 mg/m[2], CIS 75 mg/m[2], BEV 7.5 mg/kg, given every 3 weeks. In the absence of progressive disease (PD) and in the case of ECOG PS 0-1, patients could continue on PEM+BEV until PD or unacceptable toxicity. All patients received vitamin supplementation as per PEM label. Primary endpoint was PFS; secondary endpoints included OS, response rate and toxicity. PFS without Grade (G)4 toxicity was additionally assessed.

      Results
      109 patients were enrolled in 5 countries. Characteristics: median age 61 years, males/females 59/41%, ECOG PS 0/1 54/46%, stage IIIB/IV 9/91%, adenocarcinoma 91%. 72 patients (66%) received maintenance CT. Overall median (maximum) number of cycles were 8(34) for PEM+BEV and 4(4) for CIS. Median PFS was 6.9 months (90% CI 5.7, 8.3). Table 1 summarizes efficacy data; Table 2 presents G1-4 adverse event (AE) data, including AEs of special interest regarding BEV. 2 patients died from study-drug related toxicity (GI hemorrhage, pneumonia aspiration; during induction CT). Figure 1 Figure 2

      Conclusion
      In this study of PEM+CIS+BEV induction CT followed by PEM+BEV maintenance, median PFS was 6.9 months. The addition of BEV to PEM-CIS induction and PEM maintenance was associated with acceptable and expected toxicities. Main G3/4 toxicities included neutropenia and fatigue, hypertension was less common.

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      P2.10-037 - Efficacy and safety of maintenance pemetrexed in patients with advanced nonsquamous non-small cell lung cancer (NSCLC) after completing at least 4 cycles of pemetrexed plus cisplatin induction treatment: a cross-trial analysis of two phase III trials (ID 2449)

      09:30 - 09:30  |  Author(s): C. Visseren-Grul

      • Abstract

      Background
      In a phase III trial, JMDB, the subgroup of patients with nonsquamous histology showed a significant improvement in survival after treatment with first-line pemetrexed + cisplatin (pem 500 mg/m[2] + cis 75 mg/m[2] every 21 days for a maximum of 6 cycles). In PARAMOUNT, a double-blind, placebo-controlled, phase III trial, 539 patients with advanced nonsquamous NSCLC and an Eastern Cooperative Oncology Group performance status (ECOG PS) of 0 or 1 were randomized to maintenance pem or placebo after completing 4 cycles of pem+cis without disease progression.

      Methods
      We compared patients from the two randomized arms of PARAMOUNT with a selected homogeneous population from JMDB: 346 patients with advanced nonsquamous NSCLC and an ECOG PS of 0 or 1 who completed at least 4 cycles of pem+cis without disease progression. Efficacy outcomes included overall survival (OS) and progression-free survival (PFS) measured from the start of treatment with pem+cis and analyzed by Kaplan-Meier and Cox methods. Rates of toxicities were calculated without formal statistical comparison.

      Results
      Outcomes for the JMDB homogeneous group were similar to the PARAMOUNT placebo arm (PFS: 6.24 vs 5.59, p=0.117; OS: 14.23 vs 13.96, p=0.979). The PARAMOUNT pem group had statistically superior efficacy compared with the JMDB homogeneous group (PFS: 7.46 vs 6.24 p<0.00001; OS: 16.89 vs 14.23 p=0.003). Patients who received pem maintenance displayed numerically higher incidences of drug-related serious adverse events (SAEs) compared with JMDB patients who received ≥4 cycles of pem+cis (10.6% vs 2.9%); grade 3/4 anemia and fatigue were higher in the pem arm of PARAMOUNT. A comparable number of patients (approximately 2/3) on both arms of PARAMOUNT and on JMDB received post-discontinuation systemic therapy (PDT). Results are summarized in Table 1. Table 1: Summary of survival, post-discontinuation systemic therapy , and selected drug-related adverse events in the PARAMOUNT pem and placebo arms and the JMDB homogeneous group

      PARAMOUNT pem arm (n=359) PARAMOUNT placebo arm (n=180) JMDB homogeneous group (n=346)
      PFS
      Median (95% CI), mos 7.46 (6.90-8.57) 5.59 (5.45-5.95) 6.24 (5.91-6.54)
      Cox unadjusted HR (95% CI) 0.66 (0.56-0.77)* 0.86 (0.72-1.04)**
      Unadjusted log-rank p-value <0.00001* 0.117**
      OS
      Median (95% CI), mos 16.89 (15.77-18.99) 13.96 (12.88-15.51) 14.23 (12.94-15.05)
      Cox unadjusted HR (95% CI) 0.75 (0.63-0.91)* 1.00 (0.81-1.24)**
      Unadjusted log-rank p-value 0.003* 0.979**
      Received any PDT, n % 231 (64.3) 129 (71.7) 207 (59.8)
      Patients with ≥1 drug-related SAE, n (%) 38 (10.6) 8 (4.4) 10 (2.9)
      Hematologic grade 3/4 toxicities, n (%)
      Anemia Hemoglobin decreased Hemoglobin 16 (4.5) 2 (0.6) 0 (0.0) 2 (1.1) 0 (0.0) 0 (0.0) 0 (0.0) 0 (0.0) 10 (2.9)
      Neutropenia Neutophils/granulocytes 17 (4.7) 0 (0.0) 0 (0.0) 0 (0.0) 0 (0.0) 18 (5.2)
      Nonhematologic grade 3/4 toxicities, n (%)
      Fatigue 11 (3.1) 2 (1.1) 5 (1.4)
      *PARAMOUNT pem arm vs JMDB homogeneous group; **PARAMOUNT placebo arm vs JMDB homogeneous group. Abbreviations: PDT=post-discontinuation systemic therapy; PFS: progression-free survival; OS: overall survival; SAE: serious adverse event

      Conclusion
      The PARAMOUNT placebo arm showed results consistent with the JMDB homogeneous group treated with pem+cis. The addition of pem continuation maintenance treatment results in a statistically significant increase in OS and PFS. Although there was an increase in the incidence of grade 3/4 toxicities with longer exposure to pem+cis or maintenance pem, the overall incidence remains low, underscoring the relative safety of these treatment regimens.

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    P3.10 - Poster Session 3 - Chemotherapy (ID 210)

    • Event: WCLC 2013
    • Type: Poster Session
    • Track: Medical Oncology
    • Presentations: 1
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      P3.10-002 - Resource utilization of NSCLC patients receiving platinum-based therapies across Europe; results from the FRAME observational study (ID 183)

      09:30 - 09:30  |  Author(s): C. Visseren-Grul

      • Abstract

      Background
      FRAME was a non-interventional, prospective observational study of advanced or metastatic non-small cell lung cancer (NSCLC) patients initiating first-line treatment (FLT) with platinum-based therapies in a routine practice setting across 11 European countries.

      Methods
      Patient enrollment occurred between April 2009 and February 2011. Consenting adults with Stage IIIB or IV NSCLC receiving platinum-based doublet chemotherapy with or without an additional targeted agent as FLT were eligible for this study. Patients were under routine treatment for NSCLC by their doctors and treatment choice and resource use were at the discretion of the treating physician. Secondary objectives of the study included determining resource use during FLT. Hospitalizations, outpatient visits, concomitant therapy use, transfusions and the use of colony stimulating factors (CSFs) are reported here. Cohorts were not adjusted for multivariate parameters prohibiting statistical comparisons.

      Results
      Evaluable patients (n=1564) were categorized into 4 main cohorts based on their FLTs: pemetrexed + platinum (n=569), gemcitabine + platinum (n=360), taxanes + platinum (n=295) or vinorelbine + platinum (n=300). Forty of the evaluable patients received other platinum-doublet treatments and were excluded from the analyses presented here.Across the four main cohorts, 55% of patients were hospitalized.A majority (61%) of hospitalizations were preplanned (71% in the pemetrexed cohort, 45% in the gemcitabine cohort, 67% in the taxanes cohort and 53% in the vinorelbine cohort). Among the unplanned hospitalizations, 54% were related to an adverse event (54% in the pemetrexed cohort, 54% in the gemcitabine cohort, 55% in the taxanes cohort, and 55% in the vinorelbine cohort). The mean (95%-confidence interval) duration of hospitalizations was 13 days (11.6 to 14.6) for pemetrexed (median=9 days), 11 days (9.4 to 12.8) for gemcitabine (median=7 days),17 days (14.0 to 19.7) for taxanes (median=12 days), and 13 days (11.3 to 15.0) for vinorelbine (median=9 days). Nearly half of patients (47%) were seen in an outpatient setting with most outpatient visits (82%)planned for scheduled treatments. Nineteen percent of patients received ≥1 transfusion (16% in the pemetrexed cohort, 24% in the gemcitabine cohort, 15% in the taxanes cohort and 24% in the vinorelbine cohort). Nearly all (94%) of these patients received packed red blood cells. Nineteen percent of patients received ≥1 colony stimulating factor (CSF), which included G-CSF (69%), or erythropoietin (39%). During therapy, 82% of patients used antiemetics and antinauseants, 58% used steroids, 40% used analgesics, and 24% used antibiotics. Twenty-eight percent of patients received radiation during FLT and most often radiation was delivered concurrently with chemotherapy (66% overall, 66% in the pemetrexed cohort, 54% in the gemcitabine cohort, 68% in the taxanes cohort, and 73% in the vinorelbine cohort).

      Conclusion
      The FRAME study provides unique, real-life data reflecting prospectively collected information on resource use not accessible in a clinical trial setting. This study revealed several important findings regarding real-world resource use during NSCLC therapy including data on hospitalizations, outpatient visits, transfusions, concomitant treatments, and radiation.