- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03401957
The Emergence of RAS Mutations in Metastatic Colorectal Cancer Patients Receiving Cetuximab Treatment
A Non-interventional Uncontrolled Multicenter Study to Investigate the Emergence of RAS Resistance Mutations in RAS Wild Type mCRC Patients Receiving First Line Cetuximab Treatment
Study Overview
Status
Intervention / Treatment
Detailed Description
This is a single arm, non-interventional, uncontrolled, multicenter study in metastatic colorectal cancer patients receiving cetuximab-based infusional 5-FU regimen as 1st line treatment. Patients who are pathologically diagnosed as metastatic colorectal cancer with RAS wild type genotyping will be recruited in this study. Patients enrolled will be those for whom it is planned to treat their colorectal cancer with a cetuximab-based infusional 5-FU regimen according to the locally approved label. Cetuximab-based treatment is anticipated to be continued until disease progression, intolerable toxic effects, or withdrawal of consent occurs. Blood samples from patients enrolled in this study will be collected before the start of cetuximab-based chemotherapy, and every 3 months during the 1st line treatment with the cetuximab-based regimen. Blood sampling is also required at 2-3 weeks after disease progression following cetuximab treatment and after disease progression on 2nd line treatment. The blood samples will be sent to a central laboratory at the Taipei Institute of Pathology and evaluated for RAS genotype, using MassARRAY technique. The objectives of this study are described as follows.
Primary objective:
To observe the percentage of detected RAS mutations (circulating DNA) during 1st line cetuximab exposure in Taiwanese patients.
Secondary objective:
- To observe the time to onset of detected RAS mutation in circulating DNA.
- To observe the quantification mutation load change under treatment.
- To evaluate clinical response and resection rate of metastases with 1st line cetuximab exposure.
- To evaluate treatment duration with 1st line cetuximab.
- To investigate the correlation between the occurrence and levels of acquired RAS mutations post-cetuximab treatment and clinical outcomes (progression free survival and overall survival).
- To calculate total 1st line cetuximab exposure dosage.
- To investigate correlation between the irinotecan or oxaliplatin dosage and acquired resistance.
Study Type
Enrollment (Anticipated)
Contacts and Locations
Study Contact
- Name: Shang Hung Chen, M.D.
- Phone Number: 65113 +886-6-7000123
- Email: bryanchen@nhri.org.tw
Study Locations
-
-
-
Kaohsiung, Taiwan
- Recruiting
- Kaohsiung Medical University Chung-Ho Memorial Hospital
-
Contact:
- Jaw-Yuan Wang, M.D.
- Email: jayuwa@cc.kmu.edu.tw
-
Tainan, Taiwan
- Recruiting
- National Cheng Kung University Hospital
-
Contact:
- Shang Hung Chen, M.D.
- Phone Number: 65113 +886-6-7000123
- Email: bryanchen@nhri.org.tw
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Taipei, Taiwan
- Recruiting
- Taipei Veterans General Hospital
-
Contact:
- Jeng-Kai Jiang, M.D.
- Email: jkjiang@vghtpe.gov.tw
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Taipei, Taiwan
- Not yet recruiting
- Cathay General Hospital
-
Contact:
- Yung-Chuan Sung, M.D.
- Email: yungchuans@cgh.org.tw
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Sampling Method
Study Population
Description
Inclusion Criteria:
- Patients with histologically proven metastatic colorectal cancer for whom treatment with cetuximab in 1st line setting, is planned as part of routine clinical practice, as per the locally approved label and the best scientific information; the decision to prescribe cetuximab is at the sole discretion of the investigator. The choice of standard chemotherapy regimen for 1st line treatment of colorectal cancer is also at the sole discretion of the Investigator, based upon routine clinical practice.
- Patients aged 20 years and above.
- Patients who are molecularly diagnosed as having RAS wild-type mCRC.
- Patients who are willing to provide blood samples during the study
- Patients who are willing, and able and give, signed informed consent.
Exclusion Criteria:
- Patients having a history of prior exposure to any anti-EGFR therapy.
- Contra-indications to cetuximab as per locally approved label.
Study Plan
How is the study designed?
Design Details
Cohorts and Interventions
Group / Cohort |
Intervention / Treatment |
---|---|
RAS wild-type colorectal cancer
RAS mutation of patients who are pathologically diagnosed as metastatic colorectal cancer with RAS wild type genotyping will be evaluated using liquid biopsy during cetuximab treatment.
|
Cetuximab-based infusional 5-FU regimen as the 1st line treatment.
Other Names:
The blood samples taken from subjects will be evaluated for RAS genotype using MassARRAY technique.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Percentage of detected circulating DNA RAS mutations during 1st line cetuximab exposure.
Time Frame: 9 months
|
Percentage of detected RAS mutations during cetuximab treatment.
|
9 months
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Time to onset of newly detected circulating DNA RAS mutation.
Time Frame: 9 months
|
Time duration between the start of cetuximab treatment and newly detection of RAS mutation.
|
9 months
|
Mutation load (percentage of detected mutated alleles) until disease progression.
Time Frame: 9 months
|
Percentage of detected mutated alleles at disease progression.
|
9 months
|
Percentage of detected RAS mutations at the time of progression.
Time Frame: 9 months
|
Percentage of detected RAS mutations at the time of progression.
|
9 months
|
Clinical response rate by the investigator's judgement based on RECIST criteria.
Time Frame: 9 months
|
Response rate of tumor after cetuximab treatment.
|
9 months
|
Resection rate of liver or lung metastases.
Time Frame: 9 months
|
Resection rates of metastases after cetuximab treatment.
|
9 months
|
Duration of treatment with cetuximab in 1st line treatment.
Time Frame: 9 months
|
Time duration of cetuximab as the 1st line treatment.
|
9 months
|
Total accumulated dosage of cetuximab in 1st line treatment.
Time Frame: 9 months
|
Total accumulated dosage of cetuximab in 1st line treatment.
|
9 months
|
Progression-free survival from start of 1st line treatment with cetuximab.
Time Frame: 9 months
|
The time duration of subjects between the inclusion in the study and disease progression.
|
9 months
|
Overall survival from the start of 1st line treatment with cetuximab.
Time Frame: 24 months
|
The time duration of subjects between the inclusion in the study and death.
|
24 months
|
Collaborators and Investigators
Collaborators
Investigators
- Principal Investigator: Li-Tzong Chen, M.D., National Institute of Cancer Research, National Health Research Institutes
Publications and helpful links
Study record dates
Study Major Dates
Study Start (Anticipated)
Primary Completion (Anticipated)
Study Completion (Anticipated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- EC1060904
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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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