Genomic Landscape of Ceritinib

Retrospective Analysis of Genomic Landscape of ALK Positive NSCLC Prior to Ceritinib, and at Disease Progression Following Ceritinib

The investigators propose to conduct a retrospective study of single agent ceritinib in patients with previously untreated anaplastic lymphoma kinase (ALK) rearranged adenocarcinoma of the lung with the sole purpose of characterizing the genomic landscape before ceritinib and at the time of disease progression.

Study Overview

Detailed Description

Further improvements in therapy can only be achieved with a better understanding of the genomic landscape of ALK rearranged non-small cell lung cancer (NSCLC), specifically at the time of disease progression following treatment with ALK inhibitors. Recently, secondary ALK mutations, L1196M and G1269A have been described in patients with acquired resistance to crizotinib. A small subset of ALK positive lung cancer patients who progressed after treatment with ceritinib had tumors available for molecular analysis. Secondary mutations found included G1202R, F1174C, and F1174V. While this is interesting, an unbiased genomic study (exome or whole genome sequencing) using massively parallel sequencing at the time of disease progression is critical to fully understand the clonal evolution and the molecular mechanisms underpinning treatment resistance. To the best of the investigators' knowledge, such a study has not yet been reported.

The investigators believe the time is ripe now to comprehensively characterize genomic alterations using massively parallel sequencing technology of ALK driven adenocarcinoma of the lung to fully understand the clonal heterogeneity before therapy and fully understand the clonal evolution and the molecular mechanisms underpinning treatment resistance. A better understanding of genomic alterations through an unbiased comprehensive approach likely would lead to rationally designed therapy to augment response to ALK inhibitors.

Study Type

Observational

Enrollment (Actual)

6

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Missouri
      • Saint Louis, Missouri, United States, 63110
        • Washington University School of Medicine

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Participants will be selected from the Washington University School of Medicine and Barnes-Jewish healthcare system who previously consented to study HRPO (Human Research Protection Office)# 201305031 ("Tissue and Blood Acquisition for Genomic Analysis and Collection of Health Information from Patients with Thoracic Malignancies, Suspected Thoracic Malignancies, or Mesothelioma").

Description

Inclusion Criteria

  • Diagnosis of metastatic stage IIIB/IV lung adenocarcinoma.
  • Presence of known ALK gene rearrangement.
  • Consented to HRPO# 201305031 ("Tissue and Blood Acquisition for Genomic Analysis and Collection of Health Information from Patients with Thoracic Malignancies, Suspected Thoracic Malignancies, or Mesothelioma") with an existing specimen prior to initiation of treatment with ceritinib.
  • At least 18 years of age.
  • Received treatment with standard of care ceritinib

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Observational Models: Cohort
  • Time Perspectives: Retrospective

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Genetic changes associated with disease progression following treatment with ceritinib
Time Frame: Estimated to be 1 year
  • The investigators will compare tumor sequencing prior to ceritinib treatment to the time of disease progression to see if the genetic sequencing changed between pre-treatment and progression.
  • The investigators plan to conduct exome and transcriptome sequencing of tumor before therapy with certitinib and at the time of relapse. In addition, exome sequencing of peripheral blood DNA will be done (for germline). Given the complexities of genomic analyses of paired samples in the face of limited data, the investigators will not be able to do any formal power calculations in this feasibility study.
  • Disease progression is at least a 20% increase in the sum of the diameters of target lesions, taking as reference the smallest sum on study or appearance of one or more new lesions and/or unequivocal progression of existing non-target lesions.
Estimated to be 1 year

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Types of mutations in signaling kinases associated with therapeutic response
Time Frame: Estimated to be 1 year
  • Investigators will look at tumor tissue associated with a therapeutic response and compare with tumor tissue associated with disease progression and see if there are any mutation differences.
  • Therapeutic Response

    • Complete response is disappearance of all target lesions and non-target lesions.

      • Partial Response is at least a 30% decrease in the sum of the diameters of target lesions, taking as reference the baseline sum diameters.
Estimated to be 1 year
Allelic ratio of wild type ALT to ALK gene rearrangement (roughly corrected for intrinsic difference in tumor cellularity) with duration of response
Time Frame: Estimated to be 1 year
  • A variant is considered to have mutant biased expression if the variant is expressed and the variant allele frequency is greater than 20% higher in the RNA-seq data compared to the exome sequencing data. A variant is considered to have wild type biased expression if the gene is expressed, the region of the variant is covered at 5X or greater depth, and the VAF is at least 20% lower in the RNA-seq data compared to the exome sequencing data.
  • Duration of response is the duration of overall response is measured from the time measurement criteria are met for complete response or partial response (whichever is first recorded) until the first date that recurrent or progressive disease is objectively documented (taking as reference for progressive disease the smallest measurements recorded since the treatment started).
Estimated to be 1 year

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

September 16, 2015

Primary Completion (Actual)

February 28, 2018

Study Completion (Actual)

February 28, 2018

Study Registration Dates

First Submitted

September 8, 2015

First Submitted That Met QC Criteria

September 17, 2015

First Posted (Estimate)

September 18, 2015

Study Record Updates

Last Update Posted (Actual)

March 5, 2018

Last Update Submitted That Met QC Criteria

March 1, 2018

Last Verified

March 1, 2018

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

No

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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