NCT02431169 - Genomic Landscape of EGFR Mutant NSCLC Prior to Erlotinib and at the Time of Disease Progression
Genomic Landscape of EGFR Mutant NSCLC Prior to Erlotinib and at the Time of Disease Progression
Washington University School of Medicine
The investigators propose to conduct a pilot feasibility study of single agent erlotinib
in patients with metastatic EGFR mutant adenocarcinoma of the lung with up to one prior
treatment with the sole purpose of characterizing the genomic landscape before erlotinib
and at the time of disease progression. The logistics of obtaining adequate quality fresh
tissue specimens for sequencing studies before therapy and at the time of disease
progression in patients with advanced lung cancer are complex and a thorough
understanding of the practical challenges in conducting a study like this is crucial.
The current proposal will include exome and transcriptome sequencing from blood collected
at baseline along with tumor samples obtained prior to starting erlotinib and at the time
of disease progression (a total of two tissue samples and one blood sample per patient).
If carried out successfully, the proposed strategy very likely will lead to a larger and
adequately powered study to understand fully evolving molecular changes due to clonal
selection under treatment pressure. The pace of progress in the field of sequencing
technology currently underway is only likely to accelerate in the near future yielding
richer and highly content-rich information. Moreover, it is likely that genomic
information from DNA sequencing and transcriptome will be supplemented by analyses of
translatomes and proteomes.
The investigators plan to sequence paired tumor specimens from 20 patients with EGFR
mutant adenocarcinoma of the lung before treatment with erlotinib and at the time of
disease progression following treatment with erlotinib. As the investigators expect some
drop off (due to unexpected clinical events precluding a second biopsy at the time of
disease progression, poor specimen quality and early discontinuation of therapy for
non-progression), the investigators will enroll 40 patients in this trial to get
20-paired specimens.