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R. Ramlau
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OA22 - Novel Trials and Biomarkers in Malignant Pleural Mesothelioma (ID 403)
- Event: WCLC 2016
- Type: Oral Session
- Track: Mesothelioma/Thymic Malignancies/Esophageal Cancer/Other Thoracic Malignancies
- Presentations: 1
- Moderators:H. Pass, N. Van Zandwijk
- Coordinates: 12/07/2016, 14:20 - 15:50, Strauss 3
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OA22.01 - STELLAR - Interim Results of a Phase 2 Trial of TTFields with Chemotherapy for First Line Treatment of Malignant Mesothelioma (ID 6034)
14:20 - 15:50 | Author(s): R. Ramlau
- Abstract
- Presentation
Background:
Tumor Treating Fields (TTFields) are an anti-mitotic, regional treatment modality, based on low intensity alternating electric fields delivered non-invasively using a portable, home use, medical device. In-vitro, human mesothelioma cells were found to be highly susceptible to TTFields. TTFields have been shown to extend survival of patients with glioblastoma when added to standard of care chemotherapy.
Methods:
The trial will accrue a total of 80 patients with unresectable, previously untreated mesothelioma. Patients are treated with TTFields in combination with pemetrexed and cisplatin or carboplatin. Continuous TTFields at 150 kHz for a minimum of 18 hours/day are applied to the thorax together with standard dosing of chemotherapy. Inclusion criteria include ECOG 0-1, pathological evidence mesothelioma and at least one measurable lesion according to modified RECIST criteria. Patients are followed q3 weeks (CT scan q6 weeks) until disease progression. The primary endpoint is overall survival (OS) and secondary endpoints are response rate, progression free survival (PFS) and treatment-emergent toxicity. This prospective, single arm study assumes that historical control has an exponential survival distribution and a median survival of 12.1 Months (Vogelzang et al.). The sample size provides 80% power with a two sided alpha of 0.05 to detect a Hazard Ratio of 0.67 for OS, compared to the historical data.
Results:
To date, 42 patients have been enrolled in the trial with an average follow up time of 11.5 months. Median age is 67±9 (range 43-78), 79% are male and 48% smokers. 14% (6 patients) have metastatic disease and 33% (14 patients) have an ECOG score of 1. Median survival has not been reached at this time. The 12-month survival rate is 79.7% (95% CI 57.2-91.2) and median PFS is 7.3 months (95% CI 5.6-NA). No device-related serious adverse events (AEs) have been reported to date. Expected TTFields-related dermatitis was reported in 55% (23 patients). Only 2 patients had grade 3 dermatitis. The following severe (grade 3-4) systemic AEs were reported: hematological (26%), hepatobiliary (2%), respiratory (2%).
Conclusion:
These interim results of the ongoing STELLAR study demonstrated no safety concerns for the combination of TTFields to the thorax together with standard chemotherapy for previously untreated mesothelioma patients. The 12-month survival rate was significantly higher, and PFS longer, than that of historical controls reported by Vogelzang et al. Final analysis of the study will be performed after enrollment and follow up of all 80 patients in the study are completed.
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OA23 - EGFR Targeted Therapies in Advanced NSCLC (ID 410)
- Event: WCLC 2016
- Type: Oral Session
- Track: Advanced NSCLC
- Presentations: 1
- Moderators:O.T. Brustugun, S. Lu
- Coordinates: 12/07/2016, 14:20 - 15:50, Stolz 2
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OA23.02 - Efficacy and Safety of Necitumumab Continuation Monotherapy in Patients with EGFR-Expressing Tumors in SQUIRE, a Phase 3 Study (ID 4283)
14:20 - 15:50 | Author(s): R. Ramlau
- Abstract
- Presentation
Background:
SQUIRE (NCT00981058) demonstrated adding necitumumab (N) to gemcitabine/cisplatin (GC) improved survival in patients with Stage IV squamous NSCLC (SQ-NSCLC). Retrospective analysis revealed consistent treatment effect in favor of patients receiving N monotherapy as continuation after chemotherapy (CT) (GC+N continuation patients) versus continuation therapy-eligible GC arm patients (GC non-progressors). In the EU, N is approved for patients with EGFR-expressing tumors. We repeated the analysis in this patient population.
Methods:
Patients with Stage IV SQ-NSCLC were randomized 1:1 for ≤6 cycles of G (1250 mg/m[2] iv, Days [d] 1,8) and C (75 mg/m[2] iv, d1) either with or without N (800 mg iv, d1,8). Patients in GC+N without progression continued N until progressive disease (PD). SQUIRE included mandatory tissue collection. EGFR protein expression was assessed by IHC in a central lab (Dako EGFR PharmDx kit). Analyses were done in EGFR-expressing patients (EGFR >0). Patients who received ≥4 cycles of CT without PD were included. Overall survival (OS) and progression-free survival (PFS) were calculated by Kaplan-Meier method. 95% CIs and hazard ratios estimated using stratified Cox proportional hazards model.
Results:
Of 1093 patients (ITT population), 982 patients (89.8%) had evaluable IHC assay results; 935/982 (95.2%) had EGFR>0. GC+N arm continuation therapy patients included 228 patients with EGFR>0 and 194 patients (EGFR>0) were GC arm non-progressors. Baseline characteristics were similar except gender (Males: 81% in GC+N vs 91% in GC arm). CT exposure was balanced. Median OS from randomization in GC+N vs GC was 16.1 vs 14.9 months; HR 0.76 (95% CI, 0.61, 0.95). Median PFS in GC+N vs GC was 7.4 vs 6.9 months; HR 0.81 (95% CI, 0.66, 1.00). Figure 1
Conclusion:
In patients with EGFR-expressing tumors, a consistent treatment effect in favor of GC+N continuation maintenance compared to GC non-progressors was observed, similar to ITT population with no unexpected increases in AEs.
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P2.05 - Poster Session with Presenters Present (ID 463)
- Event: WCLC 2016
- Type: Poster Presenters Present
- Track: Radiotherapy
- Presentations: 1
- Moderators:
- Coordinates: 12/06/2016, 14:30 - 15:45, Hall B (Poster Area)
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P2.05-030 - WBRT Prior EGFR TKIs is Effective Treatment Option for NSCLC Patients with CNS Metastases Harboring EGFR Mutation (ID 5151)
14:30 - 15:45 | Author(s): R. Ramlau
- Abstract
Background:
Central nervous system (CNS) metastases are considered as a common cause of morbidity and mortality in advanced non-small-cell lung cancer (NSCLC). It is estimated that 20–40% of NSCLC develop CNS metastases during their disease course. Sensitivity of chemotherapy is limited in CNS metastases of NSCLC, because of restrict transit function of blood-brain barrier. The main treatment options based on whole brain radiation therapy (WBRT), stereotactic radiosurgery, neurosurgery or combination of them. Median overall survival (mOS) achieved in NSCLC with CNS metastases treated with irradiation methods is 6.5-7.5 months. Introduction of epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors (TKIs) – gefitinib, erlotinib, afatinib – improved the treatment possibilities in selected group of NSCLC patients harboring EGFR gene mutations. Also CNS metastatic lesions of NSCLC showed sensitivity to EGFR-TKIs (mOS to 15-17 months). Moreover, concurrent EGFR TKIs and WBRT may be used synergistic because potentially improve survival and delays intracranial progression. The main aim of the study was evaluation weather implementation of WBRT prior EGFR TKIs in NSCLC patients with CNS metastases might influence on their survival in comparison to patients without CNS metastases treated with EGFR TKIs monotherapy.
Methods:
The studied group included 178 NSCLC patients harboring EGFR gene mutation. 160 (110 female, 50 male; median age 67 years) patients with primary NSCLC received EGFR TKIs in first or second line of treatment. 18 patients (16 female, 2 male; median age 69 years), who had diagnosed CNS metastases, received WBRT prior administration of EGFR TKIs.
Results:
The treatment response was showed in both studied group. We did not observed a significant differences in survival in both studied groups. The progression free survival (PFS) in patients with primary NSCLC treated with EGFR TKIs and in patients with CNS lesions treated with WBRT prior EGFR TKIs was 10 vs. 9 months (p=0.785; HR=1.07; 95% CI=0,618-1.866), respectively. Also mOS did not show significance discrepancies in both studied group (26 vs. 32 months, respectively; p=0.32; HR=0.639; 95% CI=0.301-1.356). Implementation of WBRT prior TKIs did not lead to additional neurotoxicity.
Conclusion:
The following study showed that combination of WBRT prior TKIs in NSCLC patients with CNS metastases achieves similar benefit like treatment of primary NSCLC (without CNS metastases) with EGFR TKIs monotherapy. Based on overall data, patients with CNS metastases achieved better response rate when EGFR TKIs are administrated prior WBRT. It may be caused by EGFR TKIs feature which possess CNS penetrability for radiation.
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P2.06 - Poster Session with Presenters Present (ID 467)
- Event: WCLC 2016
- Type: Poster Presenters Present
- Track: Scientific Co-Operation/Research Groups (Clinical Trials in Progress should be submitted in this category)
- Presentations: 2
- Moderators:
- Coordinates: 12/06/2016, 14:30 - 15:45, Hall B (Poster Area)
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P2.06-006 - Phase I/II Dose Escalation Study of L-DOS47 as a Monotherapy in Non-Squamous Non-Small Cell Lung Cancer Patients (ID 4455)
14:30 - 15:45 | Author(s): R. Ramlau
- Abstract
Background:
L DOS47, a cancer therapeutic designed to exploit the acidic tumour extracellular environment, is a protein conjugate consisting of a urease conjugated to a camelid monoclonal antibody (AFAIKL2) that is targeted to the CEACAM6 antigenic tumour marker. The AFAIKL2 antibody serves as a targeting agent to deliver the enzyme to the tumor sites while the urease enzyme converts urea, an abundant natural metabolite, into ammonia and generates a local pH increase. The combined effect of ammonia toxicity and pH increase is cytotoxic to cancer cells in culture and in xenograft models. This first in human study of L DOS47 was designed to define the maximum tolerated dose of multiple doses of L-DOS47 administered intravenously to patients with non-squamous NSCLC when given as a monotherapy.
Methods:
Stage IIIb or IV histologically confirmed non-squamous NSCLC patients (aged ≥18 yrs, ECOG PS ≤2) receive multiple cycles of L-DOS47 during the study treatment period. L-DOS47 is administered once weekly over 14 days followed by 7 days rest in each treatment cycle. Patients are recruited into cohorts and received the same dose of L-DOS47 on Days 1 and 8 of each treatment cycle. Dose levels of L-DOS47 are escalated in further cohorts following a review of safety data by the Trial Steering Committee.
Results:
Fifty-five (55) pts (median age 61, 53% male) were enrolled in sixteen cohorts (dose levels: 0.12 to 13.55 µg/kg) in four Polish centers. L-DOS47 was well tolerated at the dose levels reviewed. One (1) DLT was reported in a cohort 13 patient (spinal pain). None of the patients treated to date have had a partial or complete response as defined by RECIST v1.1. Thirty-two (32) patients had an overall response of stable disease after completing two cycles of L-DOS47. Thirteen (13) of the 32 patients had a decrease in the sum of diameters of target lesions. One (1) patient in cohort 9 was dosed for 10 cycles without disease progression.
Conclusion:
L-DOS47 monotherapy is well tolerated at dose levels up to 13.55µg/kg.
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P2.06-022 - First-Line Durvalumab plus Tremelimumab vs Platinum-Based Chemotherapy for Advanced/Metastatic NSCLC: Phase 3 NEPTUNE Study (ID 4610)
14:30 - 15:45 | Author(s): R. Ramlau
- Abstract
Background:
Current first-line therapy for advanced EGFR and ALK wild-type NSCLC is associated with poor survival and there remains a significant need for more effective treatments in this population. Blockade of immune checkpoints programmed cell death-1 (PD-1) and cytotoxic T-lymphocyte-associated antigen-4 (CTLA-4) represents a promising anticancer therapeutic strategy. In preclinical models, targeting both PD-1 and CTLA-4 provides for non-redundant pathway blockade and potential synergy. Durvalumab (MEDI4736) is a selective, high-affinity, engineered human IgG1 mAb that blocks programmed cell death ligand-1 (PD-L1) binding to PD-1 (IC~50~ 0.1 nM) and CD80 (IC~50~ 0.04 nM). Tremelimumab is a selective human IgG2 mAb inhibitor of CTLA-4. A Phase 1b study of durvalumab + tremelimumab demonstrated encouraging clinical activity and a manageable tolerability profile in advanced NSCLC, with activity observed in patients with high and low/no tumour PD-L1 expression (NCT02000947).
Methods:
NEPTUNE (NCT02542293) is a randomised, open-label, multicentre, global, Phase 3 study. Immunotherapy- and chemotherapy-naïve patients with advanced/metastatic EGFR and ALK wild-type NSCLC (with either PD-L1 high expression [≥25% tumour cells staining for PD-L1 at any intensity] or PD-L1 low/negative expression [<25% tumour cells staining for PD-L1 at any intensity] ) will be randomised (1:1) to durvalumab (20 mg/kg i.v. every 4 weeks [q4w] for up to 12 months) + tremelimumab (1 mg/kg i.v. q4w for up to 4 doses); or standard-of-care platinum-based doublet chemotherapy. The primary endpoint is overall survival (OS). Secondary endpoints are progression-free survival (PFS), objective response rate (ORR), duration of response and proportion of patients alive and progression free at 12 months by investigator assessment (RECIST v1.1); time from randomisation to second progression; OS, PFS and ORR in patients with PD-L1 low/negative NSCLC; safety (CTCAE v4.03) and tolerability; pharmacokinetics; and immunogenicity. Exploratory outcomes include potential biomarkers of response to treatment and impact of subsequent anticancer therapies on OS. Recruitment is ongoing. Figure 1
Results:
Not-applicable
Conclusion:
Not-applicable
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P3.02b - Poster Session with Presenters Present (ID 494)
- 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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P3.02b-048 - Oral Vinorelbine Monotherapy in Patients with EGFR+ NSCLC after Failure of EGFR-TKI in First Line: A Prospective Study (ID 4315)
14:30 - 15:45 | Author(s): R. Ramlau
- Abstract
Background:
In advanced/metastatic EGFR+ NSCLC patients (pts) progressing after EGFR-TKIs failure in first line, single-agent chemotherapy (CT) may be offered in pts who are unfit for a platinum combination. In this study (NAVoTRIAL 2), oral vinorelbine (NVBo) was evaluated as monotherapy in advanced NSCLC EGFR+ pts who failed to EGFR-TKIs in first line.
Methods:
Phase II, prospective, multicentre, open-label, international study. Main eligibility criteria: stage IIIB/IV NSCLC, EGFR+, prior EGFR-TKI treatment failure, Karnofsky PS ≥70, no prior CT or immunotherapy. Study treatment until progression or unacceptable toxicity: NVBo 60 mg/m[2] weekly for 3 weeks (first cycle), followed by 80 mg/m[2] weekly for subsequent cycles in absence of grade 3/4 toxicity. The primary endpoint was the disease control rate (DCR = CR + PR + SD, RECIST 1.1).
Results:
Final results: 30 pts included (March 2013 - November 2014). Main pts characteristics: median age: 66.8 years (60% ≥65 years); median Karnofsky PS 90%. Adenocarcinoma 96.7%. ≥3 organs involved (53.3%). All pts harboured EGFR mutation and received prior EGFR-TKI therapy: Gefitinib 73.3%, Erlotinib 16.7%, Afatinib 10%; 33.3% of pts had ≥2 comorbidities; Total number of cycles: 166 (443 doses administered); median number of cycles: 3.5 (range 1-20); median relative dose intensity: 77.6% (range 46.8-105); dose escalation was performed in 76.7 % of pts; Disease control rate 63.3% (95% CI [43.8-80]) and 23.3% of patients with stable disease ≥6 months. Median time to treatment failure: 2.7 months (range 0.4-13.6). Median PFS of 3.3 months (95% CI [1.6-5.4]) and OS of 13.1 months (95% CI [6.1-15.8]). Grade 3/4 toxicities per pt: neutropenia 53.3%, anemia 6.7%, leukopenia 26.7%, fatigue 16.7%, nausea 3.3% and vomiting 6.7%. Three cases of febrile neutropenia reported. No grade 3/4 diarrhoea, constipation, peripheral neuropathies or alopecia.
Conclusion:
NVBo as single-agent CT is a well-tolerated option in advanced EGFR+ NSCLC pts beyond failure of EGFR-TKI in first line. Its favourable tolerability profile allows a prolonged disease control in non-progressing pts.
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PL03 - Presidential Symposium (ID 428)
- Event: WCLC 2016
- Type: Plenary
- Track:
- Presentations: 1
- Moderators:D.P. Carbone, R. Pirker
- Coordinates: 12/06/2016, 08:35 - 10:25, Hall D (Plenary Hall)
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PL03.09 - Phase 3 Study of Ganetespib, a Heat Shock Protein 90 Inhibitor, with Docetaxel versus Docetaxel in Advanced Non-Small Cell Lung Cancer (GALAXY-2) (Abstract under Embargo until December 6, 7:00 CET) (ID 5232)
08:35 - 10:25 | Author(s): R. Ramlau
- Abstract
- Presentation
Background:
Heat shock protein 90 functions as a chaperone to stabilize oncoproteins. Ganetespib (G), a highly potent Hsp90 inhibitor, has demonstrated efficacy in combination with docetaxel (D) over D alone in the second-line therapy of patients with advanced adenocarcinoma of the lung in a phase 2 study.
Methods:
GALAXY-2 is a randomized (1:1), international, open-label study of D with or without G. Patients with advanced (stage IIIB/IV) non-small cell lung cancer (NSCLC) of adenocarcinoma histology, EGFR and ALK wild-type, diagnosed ≥ 6 months prior to study entry, one prior systemic therapy and ECOG PS 0-1 were eligible. D was given at 75 mg/m[2] on day 1 of three-week cycle; D was given on day 1 with G at 150 mg/m[2 ]on Days 1 and 15 of each cycle. Patients were stratified by performance status (PS), LDH, and geographic region. Primary endpoint was overall survival (OS). Secondary endpoints included progression free survival (PFS) and OS in elevated LDH (eLDH) patients. We report the results of a planned interim analysis at 336 events, which occurred on October 5, 2015, with type I error level set at 0.01 (2 sided stratified log-rank test).
Results:
677 patients were randomized with 335 patients in G+D arm and 337 patients in D arm. Baseline characteristics: females 60%, age < 65 68%; never-smoker 18%; PS 0 36%; eLDH 29%; North America/Western Europe 39%. The median number of cycles delivered was 5 in G+D and 4 in D arm. There was no difference in median OS (mOS) for the two arms: 10.9 months with G+D versus 10.5 months with D alone. The hazard ratio for OS was 1.111 (95% CI 0.899-1.372), which met the early stopping criteria for futility. Median PFS was similar in the two arms: 4.2 versus 4.3 months, G+D and D, respectively (HR 1.161, 95% CI 0.961-1.403). There was no improvement with the addition of G for any secondary endpoint, including survival in the eLDH and EGFR and ALK negative populations, response rate, or progression due to new metastatic lesions. The most common grade 3/4 treatment-emergent adverse event in both arms was neutropenia (31.1% versus 24.3%, G+D and D, respectively).
Conclusion:
The addition of ganetespib to docetaxel did not result in improved efficacy for salvage therapy of patients with advanced stage lung adenocarcinoma.
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