Circulating Tumor DNA (ctDNA) as a Prognostic Tool in Patients With Advanced Lung Adenocarcinoma
1 other identifier
observational
100
1 country
1
Brief Summary
Lung cancer is the leading cause of cancer death in the U.S. and throughout the world. Lung cancers are broadly divided histologically into small cell lung cancer (SCLC) and non-small cell lung cancer (NSCLC). About 25% of patients with NSCLC have stage I or II disease. The primary treatment modality is surgical resection,2 and 5-year survival rates are 65% for stage I and 41% for stage II disease. However, more than 70% of patients with NSCLC present with stage III or IV disease. Patients with stage III disease are most commonly treated with chemoradiation, and 5-year survival rate is 26%. Chemotherapy and targeted therapy are often used for stage IV disease, which has a 5-year survival rate of 4%. Tyrosine kinase inhibitor (TKI) is a targeted therapy against specific molecules in critical cell-signaling pathways involved in lung carcinogenesis. The currently available FDA approved TKIs for advanced NSCLC include afatinib, gefitinib, and erlotinib that inhibit epidermal growth factor receptor (EGFR) signaling 6 and crizotinib that inhibits anaplastic lymphoma kinase (ALK) signaling. However, only tumors that carry the corresponding oncogenic mutations (e.g., sensitizing EGFR mutations) would respond well to these TKIs. Meta-analyses of clinical trials evaluating the efficacy of gefitinib and erlotinib have demonstrated that NSCLC patients who are EGFR mutation-positive have a lower risk of disease progression when treated with an EGFR-TKI as compared to those treated with chemotherapy (HR = 0.43, 95% confidence interval, CI=0.38-0.49). EGFR-TKI, however, confers no benefits to patients who are EGFR wildtype (HR = 1.06, 95% CI=0.94-1.19). A phase III trial of crizotinib has also demonstrated the superiority of crizotinib to standard chemotherapy in ALK-positive NSCLC patients (HR = 0.49; 95% CI=0.37-0.64). In Hong Kong, as in other parts of Asia like in China and in Taiwan, other than the majority of lung cancer patients being smokers, there is also a prominence of non-smokers in lung cancer. Compared with Caucasians, there is also a relatively higher incidence of EGFR mutation in lung adenocarcinomas. The prevalence of EGFR mutation in Asian population with lung adenocarcinomas can reach up to 60% compared to at most 30% in the Caucasian population. These EGFR mutant tumors will demonstrate better response to the drug EGFR-TKI, boosting up the response rate to almost 70% compared to 30% with conventional chemotherapy for lung cancer. Even with this remarkable response, however, EGFR-TKI will eventually fail in EGFR mutant lung cancer. There is an imminent need to look for newer therapeutic targets or agents that can overcome this acquired resistance to anti-cancer drugs and to explore alternative molecular signaling pathways that could interact or enhance EGFR signaling pathways to modulate the therapeutic response in lung cancer.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for all trials
Started Feb 2016
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
February 1, 2016
CompletedFirst Submitted
Initial submission to the registry
March 30, 2016
CompletedFirst Posted
Study publicly available on registry
March 27, 2017
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 1, 2017
CompletedStudy Completion
Last participant's last visit for all outcomes
December 1, 2017
CompletedMarch 27, 2017
March 1, 2017
1.8 years
March 30, 2016
March 20, 2017
Conditions
Keywords
Outcome Measures
Primary Outcomes (2)
ctDNA mutation
Types of ctDNA mutations
an average of one year
Any new ctDNA mutations
Types of new ctDNA mutations
an average of one year
Secondary Outcomes (2)
ctDNA levels [measured as copy number]
an average of one year
Any new ctDNA levels [measured as copy number]
an average of one year
Study Arms (3)
Patient receiving TKI
Patients are diagnosed with primary adenocarcinoma and have no concurrent cancers and are going to receive TKI
Patient receiving ALK-TKI
Patients are diagnosed with primary adenocarcinoma and have no concurrent cancers and are going to receive ALK-TKI
Patient receiving chemotherapy
Patients are diagnosed with primary adenocarcinoma and have no concurrent cancers and are going to receive chemotherapy
Interventions
Sequencing of ctDNA in plasma
Eligibility Criteria
Subjects who are admitted to ward or attended to clinic with confirmed advanced lung adenocarcinoma and planning to receive TKI or chemo as first-line therapy, will be invited to consent for the collection of clinical samples and data and follow-up.
You may qualify if:
- Patients are eligible if they (1) are diagnosed with primary adenocarcinoma, (2) have no concurrent cancers, (3) are going to receive TKI or chemo as first-line therapy, and (4) are willing to sign informed consent and enrolled in the study before treatment starts.
You may not qualify if:
- Patients have other concurrent cancers
- Patients who are not eligible receive TKI or chemo as first-line therapy
- Patients who are not willing or able to sign informed consent
- Histology other than adenocarcinoma
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
University of Hong Kong Queen Mary Hospital
Hong Kong, Hong Kong, 0, Hong Kong
Related Publications (33)
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Related Links
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- PROSPECTIVE
- Target Duration
- 2 Years
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Clinical Assistant Professor
Study Record Dates
First Submitted
March 30, 2016
First Posted
March 27, 2017
Study Start
February 1, 2016
Primary Completion
December 1, 2017
Study Completion
December 1, 2017
Last Updated
March 27, 2017
Record last verified: 2017-03