A Retrospective, Non-interventional, Multicenter, Observational Chart Review Study to Explore the Clinical Benefits of Retreatment With TKI in the Real World. (SEQUENCE)
A Retrospective, Non-interventional Study to Evaluate EGFR-Tyrosine Kinase Inhibitor Retreatment in Patients With Locally Advanced or Metastatic EGFR Mutated NSCLC Who Previously Treated With EGFR-TKI as First-line Therapy and Chemotherapy as Second-line Therapy - SEQUENCE Study
Study Overview
Status
Status
Conditions
Conditions
Detailed Description
Study Type
Study Type
Enrollment (Anticipated)
Enrollment
Contacts and Locations
Study Locations
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Chiayi, Taiwan
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Kaohsiung, Taiwan
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Taichung, Taiwan
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Taipei, Taiwan
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Taipei, Taiwan
- Research Site
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Tao Yuan, Taiwan
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Participation Criteria
Eligibility Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Sampling Method
Study Population
Description
Inclusion Criteria:
- Patients diagnosed with advanced adenocarcinoma or positive result of thyroid transcription factor 1 NSCLC
- Positive Epidermal Growth Factor Receptor mutation result with sensitive mutation
- Female or male aged ≧20 years
- Patients treated with Epidermal Growth Factor Receptor Tyrosine Kinase Inhibitor and subsequently treated with chemotherapy before re-administration of Epidermal Growth Factor Receptor Tyrosine Kinase Inhibitor. Exclusion Criteria:
1. Patients with EGFR mutation status of positive exon 20 T790M mutation only. 2. Patients who are confirmed of squamous type NSCLC
Study Plan
How is the study designed?
Design Details
What is the study measuring?
Primary Outcome Measures
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
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The treatment duration of Epidermal Growth Factor Receptor Tyrosine Kinase Inhibitor re-administration
Time Frame: From the start of re-administration of EGFR-TKI to data cut-off date, assessed approximately up to 6 months.
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The median duration of re-administration of Epidermal Growth Factor Receptor Tyrosine Kinase Inhibitor will be summarized by days or months, if applicable.
The range of this treatment duration will also be presented.
All analyses will be performed on all eligible patients in this study.
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From the start of re-administration of EGFR-TKI to data cut-off date, assessed approximately up to 6 months.
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Secondary Outcome Measures
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
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Assessment of progression-free survival for initial, second EGFR-TKI treatment and chemotherapy between two Epidermal Growth Factor Receptor Tyrosine Kinase Inhibitor treatments.
Time Frame: From the start of administration of EGFR-TKI to data cut-off date, assessed approximately up to 6 months.
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The outcome of progression-free survival will be presented with median values and associated 95% CIs by Kaplan-Meier curve.
PFS is defined as the time interval (in weeks) from the start date of a given treatment to the date of disease progression or death, respectively, which one is observed first.
Subjects who did not progress or die without a reported progression will be censored on the date of their last tumor assessment.
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From the start of administration of EGFR-TKI to data cut-off date, assessed approximately up to 6 months.
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Assessment of overall survival for initial, second EGFR-TKI treatment and chemotherapy between two Epidermal Growth Factor Receptor Tyrosine Kinase Inhibitor treatments.
Time Frame: From the start of administration of EGFR-TKI to data cut-off date, assessed approximately up to 6 months.
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The outcome of overall survival will be presented with median values and associated 95% CIs by Kaplan-Meier curve.
OS is defined as the time interval (in weeks) from the beginning of treatment until the date when death or lost to follow up is observed.
For those subjects who have not died or lost to follow-up, survival duration will be censored at the last date the subject was known to be alive.
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From the start of administration of EGFR-TKI to data cut-off date, assessed approximately up to 6 months.
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Assessment of response rate for initial, second EGFR-TKI treatment and chemotherapy between two Epidermal Growth Factor Receptor Tyrosine Kinase Inhibitor treatments.
Time Frame: From the start of administration of EGFR-TKI to data cut-off date, assessed approximately up to 6 months.
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The outcome about response rate and the proportion of response rate are estimated by all evaluable patients.
The 95% exact confidence interval will be constructed around the rates.
The best response during treatment sequences is determined in accordance with the Response Evaluation Criteria in Solid Tumors (RECIST) guidelines.
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From the start of administration of EGFR-TKI to data cut-off date, assessed approximately up to 6 months.
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Assessment of disease control rate for initial, second EGFR-TKI treatment and chemotherapy between two Epidermal Growth Factor Receptor Tyrosine Kinase Inhibitor treatments.
Time Frame: From the start of administration of EGFR-TKI to data cut-off date, assessed approximately up to 6 months.
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The outcome of disease control rate are estimated by all evaluable patients.
The 95% exact confidence interval will be constructed around the rates.
Disease Control Rate is defined as patients who are respond to treatment (including CR-complete respond, PR-partial respond or SD- Stable Disease).
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From the start of administration of EGFR-TKI to data cut-off date, assessed approximately up to 6 months.
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Record treatment duration in the initial EGFR-TKI therapy and first time chemotherapy.
Time Frame: Between the initial EGFR-TKI therapy and first time chemotherapy.
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Treatment duration in the initial EGFR-TKI therapy and first time chemotherapy.
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Between the initial EGFR-TKI therapy and first time chemotherapy.
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Record the reason(s) for treatment change for initial and re-administration of EGFR-TKI therapy and first time chemotherapy (second-line treatment).
Time Frame: From the start of administration of EGFR-TKI to data cut-off date, assessed approximately up to 6 months.
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Record the reason(s) for treatment change for initial and re-administration of EGFR-TKI therapy and first time chemotherapy (second-line treatment).
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From the start of administration of EGFR-TKI to data cut-off date, assessed approximately up to 6 months.
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Explore relationships between efficacy of EGFR-TKI initial and re-administration and patient characteristics or EGFR TKI treatment characteristics.
Time Frame: EGFR-TKI initial and re-administration
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Explore relationships between efficacy of EGFR-TKI initial and re-administration and patient characteristics (including demographics, histology, disease stage, sites of metastasis, ECOG PS) or EGFR TKI treatment characteristics (including EGFR mutation pattern, response to initial EGFR TKI or not, length of duration between first and second EGFR-TKI treatment)
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EGFR-TKI initial and re-administration
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overall survival (OS), plasma CEA level and chemotherapy regimens ever used.
Time Frame: between first time chemotherapy and EGFR-TKI re-administration
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Explore overall survival (OS), plasma CEA level and chemotherapy regimens ever used between first time chemotherapy and EGFR-TKI re-administration (including the types and number of chemotherapy regimens, and treatment duration) for those patients who have the above data available.
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between first time chemotherapy and EGFR-TKI re-administration
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image peer review to evaluate tumour size retrospectively in different sequences of treatment
Time Frame: (1) initial and re-administration of EGFR-TKI therapy, (2) first time chemotherapy ever used (second-line treatment) after initial EGFR-TKI treatment.
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If the images are available, conduct image peer review to evaluate tumour size retrospectively in different sequences of treatment: (1) initial and re-administration of EGFR-TKI therapy, (2) first time chemotherapy ever used (second-line treatment) after initial EGFR-TKI treatment.
Peer review time point includes baseline, best response and progression of last image while stopping treatment at each treatment mentioned above.
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(1) initial and re-administration of EGFR-TKI therapy, (2) first time chemotherapy ever used (second-line treatment) after initial EGFR-TKI treatment.
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The reason(s) for the treatment change for initial and re-administration of EGFR-TKI therapy and first time chemotherapy (second-line treatment) after peer review
Time Frame: Initial and re-administration of EGFR-TKI therapy and first time chemotherapy (second-line treatment) after peer review.
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Evaluate the reason(s) for the treatment change for initial and re-administration of EGFR-TKI therapy and first time chemotherapy (second-line treatment) after peer review and compare the difference of reason(s) for the treatment change between initiatial evaluation and after peer review.
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Initial and re-administration of EGFR-TKI therapy and first time chemotherapy (second-line treatment) after peer review.
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Collaborators and Investigators
Sponsor
Sponsor
Investigators
Investigators
- Principal Investigator: Te-Chun Hsia, China Medical University Hospital
- Principal Investigator: Yuh-Min Chen, Taipei Veterans General Hospital, Taiwan
- Principal Investigator: Gee-Chen Chang, Veterans General Hospital -Taichung
- Principal Investigator: Chong-Jen Yu, National Taiwan University Hospital
- Principal Investigator: Cheng-Ta Yang, Chang Gung Memorial Hospital
- Principal Investigator: Meng-Chih Lin, Chang-Gung Memorial Hospital Kaohsiung
- Principal Investigator: Ying-Huang Tsai, Chang-Gung Memorial Hospital ChiaYi
Publications and helpful links
Helpful Links
Study record dates
Study Major Dates
Study Start
Study Start
Primary Completion (Actual)
Primary Completion
Study Completion (Actual)
Study Completion
Study Registration Dates
First Submitted
First Submitted
First Submitted That Met QC Criteria
First Submitted That Met QC Criteria
First Posted (Estimate)
First Posted
Study Record Updates
Last Update Posted (Estimate)
Last Update Posted
Last Update Submitted That Met QC Criteria
Last Update Submitted That Met QC Criteria
Last Verified
Last Verified
More Information
Terms related to this study
Other Study ID Numbers
Other Study ID Numbers
- NIS-OTW-XXX-2013/1
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