LUNG CANCER
V3 / N5 / OCTOBER 2018
FOR THORACIC SPECIALISTS Read online at LungCancerNews.org & Visit IASLC.org
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In Memorium: Dr. David J. Sugarbaker
NEWS
I N T E R N AT I O N A L A S S O C I AT I O N F O R T H E S T U D Y O F L U N G C A N C E R MEETING HIGHLIGHTS
Top Science in Lung Cancer Featured at WCLC 2018 By Kara Nyberg, PhD
In Memorium: Dr. James D. Cox EGFR TKIs: A Marathon or a Sprint?
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The Vital and Evolving Role of Bronchoscopic Technologies
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Living in the “Gray Zone�: Entering a New Age in Radiation Therapy for Lung Cancer
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2018 ASTRO Guideline for Palliative Thoracic Radiation Therapy for NSCLC
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After the Consultation: Social Media, Inter-Patient Communication, and Clinical Trials
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The IASLC Fight Against Lung Cancer in Peru and Latin America
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A Review of CancerSEEK
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CAR-T Cells for Lung Cancer: Q&A with Dr. Charu Aggarwal
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The IASLC Provides More Than Just Scientific Knowledge at Tangier Conference
The Presidential Symposium at the IASLC World Conference on Lung Cancer 2018 (WCLC) showcased the top five scientific abstracts highlighting progress in detecting and treating different forms of lung cancer and mesothelioma. These presentations featured four positive clinical trials that advance current treatment standards and one negative clinical trial that reinforces the benefits achieved with the current standard of care.
CT Screening for Lung Cancer Harry J. de Koning, MD, PhD, professor at Erasmus MC, Rotterdam, the Netherlands, presented the 10-year results of the NELSON trial, a randomized, controlled, population-based study evaluating the ability of low-dose CT screening to reduce the incidence of lung cancer mortality, as compared with no screening, in high-risk individuals.
More than 7,000 attendees gathered to hear about the practice-changing trials discussed during the Presidential Symposium.
The 15,792 participants in the trial were winnowed from a pool of more than 606,000 people aged 50 to 74 in the Netherlands and Belgium. This select group, who had smoked more than 15 cigarettes per day for more than 25 years or more than 10 cigarettes per day for more than 30 years, and who were still smoking or had quit 10 years ago or less, underwent random assignment to CT screening (conducted at baseline and
1, 3, and 5.5 years) or to no screening. Indeterminate nodules identified during screening were rescanned 2 months after initial detection to estimate nodule volume doubling time and to prompt a referral, if appropriate. At 10 years after the start of the study, periodic CT screening reduced the rate of dying from lung cancer by 26% among high-risk men. Results were even more continued on page 6
E V O LV I N G S TA N D A R D S O F C A R E
The Treatment of Patients with Oligometastatic Lung Cancer By Anne-Marie C. Dingemans, MD, PhD, and Lizza E.L. Hendriks, MD, PhD
Patients with stage IV NSCLC are generally viewed as having incurable disease; however, for years, patients presenting with a solitary brain or adrenal metastasis have been treated with local ablative treatment (LAT) with curative intent, and multiple series have shown long-term overall survival (OS) in some of these patients. The concept of a clinically significant state of oligometastases was first described in 1995,1 proposing that oligometastatic cancer has a different biology, and that these patients, therefore, could benefit from LAT. Long-term benefit of LAT in patients with up to three or five metastatic sites has been observed in several, mainly retrospective, series.2 In 2012, De Ruysscher et al.3 published the first prospective clinical trial in patients with NSCLC with synchronous oligometastases. In this
single-arm phase II study, 40 patients with stage IV NSCLC and fewer than five metastases, amenable for LAT (radiotherapy or surgery), were enrolled. The 2- Prof. Anne-Marie C. and 3-year sur- Dingemans vival rates were 23.3% and 17.5%, respectively, showing that some patients with oligometastatic NSCLC could benefit long-term from LAT. Although patients with up to four metastases were eligible, only 13% had more than one metastasis. In addition, 95% also received systemic chemotherapy. The study was unable to define predictive patient or tumor characteristics. In recent years, the concept of oligometastatic treatment has evolved. Growing interest has been pushed by the increasing number of available treat-
ment strategies, as well as the widespread introduction of minimally invasive surgery and stereotactic radiotherapy. Several guidelines have described oligometastatic Dr. Lizza E.L. Hendriks NSCLC as a separate entity. For example, the European Society for Medical Oncology guideline states that patients with one to three synchronous metastases might have longterm disease-free survival when treated with systemic treatment and LAT.4 In addition, in the last edition of the TNM (8th) staging system, patients with solitary metastasis (M1b) were identified as a separate prognostic group with a superior OS compared to patients with more widespread metastases (M1c).5 However, data on the staging of these patients were
lacking, and selection bias might have occurred, as some hospitals entered only a few patients.6
Impressive Data but No Change to Daily Practice After years of retrospective data and single-arm trials reporting on oligometastatic NSCLC, the first randomized phase II trial was presented by Daniel Gomez, MD, at the 2016 American Society of Clinical Oncology Annual Meeting. Progression-free survival (PFS), the primary endpoint, was shown to be significantly superior when patients with oligometastatic NSCLC were treated with LAT compared to follow-up or maintenance therapy after treatment with at least four cycles of platinum-containing chemotherapy or 3 months of an EGFR TKI (EGFR mutation) or crizotinib (ALK rearrangement). Oligometastatic disease was defined as no progression after continued on page 8