- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02848079
TAS-OX for Refractory Metastatic Colon Cancer
TAS-102 and Oxaliplatin (TAS-OX) for Refractory Metastatic Colon Cancer
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
TAS-102 is an oral agent, which consists of a combination of a novel antimetabolite 5-trifluorothymidine (FTD) and a thymidine phosphorylase inhibitor (TPI) that prevents degradation of FTD. It has demonstrated activity in chemorefractory metastatic colorectal cancer (mCRC) patients. In the Japanese randomized phase II trial, TAS-102 improved medial overall survival when compared to placebo (9.0 vs.6.6 months, Hazard Ratio (HR) 0.56) in patients with mCRC refractory to 5-fluorouracil (5-FU), irinotecan and oxaliplatin. Subsequently, a randomized phase III study conducted in 13 countries (RECOURSE trial) confirmed this benefit on overall survival when compared to placebo (7.1 months vs. 5.3 months, HR 0.68) in patients with refractory metastatic colorectal cancer (CRC) 5.
Oxaliplatin is a third generation platinum compound, which is active when used together with 5-FU in the treatment of mCRC (FOLFOX). FOLFOX chemotherapy, which is frequently combined with anti-angiogenic agent Bevacizumab, is widely accepted as the preferred first-line regimen in the treatment of this disease in the US. Oxaliplatin is also frequently reintroduced in more advanced settings. Reintroduction is seen after progression on maintenance therapy, after resolution of previous treatment limiting neuropathy, after disease recurrence post adjuvant treatment or post metastasectomy. In the control arm of a randomized study of FOLFOX4 or FOLFOX7 with oxaliplatin in a stop-and-go fashion in advanced colorectal cancer (OPTIMOX1 study), oxaliplatin was reintroduced in 27% of patients. Although patients derive clinical benefit when oxaliplatin is reintroduced, the response rates are not as robust as during initial exposures. Decreased efficacy may be at least in part due to prolonged exposure and resultant resistance to 5-FU, which is a backbone in maintenance and in oxaliplatin containing regimens. Hence, the investigators propose exploring the safety and efficacy of oxaliplatin in combination with an alternative anti-metabolite TAS-102 (TAS-OX).
TAS-102 has demonstrated activity in 5-FU refractory mCRC, so the investigators hypothesize that TAS-OX may serve as an alternative drug combination for patients who have progressed or recurred after FOLFOX, and who are candidates for additional oxaliplatin therapy.
This is a 2-part clinical trial with TAS-102 in combination with oxaliplatin. The first part will be a dose-finding run-in phase and will enroll 3-18 patients. The second part, the focus of this study, will be a single arm cohort , which will further evaluate the safety, as well as efficacy, of TAS-OX in the treatment of mCRC. The subjects in part 2 will be treated with the drug doses determined in Part 1 of the trial. Up to 50 patients will be enrolled in part 2. Anticipated enrollment may be as high as 68 patients. Maximum potential enrollment is listed under anticipated enrollment, below.
Study Type
Enrollment (Actual)
Phase
- Phase 2
- Phase 1
Contacts and Locations
Study Locations
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Connecticut
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New Haven, Connecticut, United States, 06510
- Yale Cancer Center
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Histologically confirmed stage IV colon cancer (AJCC 7th edition) that has progressed after standard therapy that included 5-FU, irinotecan and oxaliplatin. Patients who could not tolerate standard agents because of unacceptable, but reversible, toxicity necessitating their discontinuation will be allowed to participate.
- Patients who had received adjuvant chemotherapy and had recurrence during or within 6 months of completion of the adjuvant chemotherapy will be allowed to count the adjuvant therapy as one chemotherapy regimen.
- Progression of disease must be documented on the most recent scan.
- Presence of measurable disease (not required for Phase 1 portion of the trial).
- Retrovirus-associated DNA sequences (RAS) mutation and mismatch repair (MMR) status must be determined (or tissue availability for testing if not already determined)
- Age 18 years or older.
- Eastern Cooperative Oncology Group (ECOG) performance status 0-1.
- Life expectancy of at least 3 months.
Patient with adequate organ function:
- Absolute neutrophil count (ANC) ≥ 1.5 x 109/L
- Hemoglobin ≥ 9 g/dL
- Platelets (PLT) ≥ 75 x 109/L
- Aspartate aminotransferase (AST)/Alanine aminotransferase (ALT) ≤ 5 x Upper limit of normal (ULN)
- Total serum bilirubin of ≤1.5 mg/dL (except for Grade 1 hyperbilirubinemia due solely to a medical diagnosis of Gilbert's syndrome).
- Albumin ≥ 2.5 g/dL
- Serum creatinine ≤ 1.5 x institutional ULN (Cockcroft and Gault formula)
- Adequate contraception if applicable.
- Women who are nursing must discontinue nursing prior to enrollment in the program.
- Ability to take oral medication (i.e. no feeding tube).
- Patient able and willing to comply with study procedures as per protocol.
- Patient able to understand and willing to sign and date the written voluntary informed consent form (ICF) at screening visit prior to any protocol-specific procedures.
Exclusion Criteria:
- Patients who have previously received TAS-102.
- Grade 2 or higher peripheral neuropathy.
- Symptomatic Central nervous system (CNS) metastases requiring treatment.
- Other active malignancy within the last 3 years (except for non-melanoma skin cancer or a non-invasive/in situ cancer).
- Pregnancy or breast feeding.
- Current therapy with other investigational agents.
- Active infection with body temperature ≥38°C due to infection.
- Major surgery within prior 4 weeks (the surgical incision should be fully healed prior to drug administration).
- Any anticancer therapy within prior 3 weeks of first dose of study drug.
- History of allergic reactions attributed to compounds of similar chemical or biologic composition to TAS-102.
- Current therapy with other investigational agents or participation in another clinical study or any investigational agent received within prior 4 weeks.
- Grade 3 or higher hypersensitivity reaction to oxaliplatin, or grade 1-2 hypersensitivity reaction to oxaliplatin not controlled with pre-medication.
- Unresolved toxicity of greater than or equal to Common Terminology Criteria for Adverse Events (CTCAE) Grade 2 attributed to any prior therapies (excluding anemia, alopecia, skin pigmentation, and platinum-induced neurotoxicity).
- Extended field radiation within prior 4 weeks of first dose of study drug or limited field radiation within prior 2 weeks of first dose of study drug.
- Psychological, familial, or sociological condition potentially hampering compliance with the study protocol and follow-up schedule.
- Involvement in the planning and/or conduct of the study.
- Previous enrollment in the present study.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: combined TAS-102 and oxaliplatin
Combination treatment with TAS-102 and oxaliplatin. Combination treatment with TAS-102 and oxaliplatin. TAS-102 is an oral medication; oxaliplatin (TAS-OX) is given by infusion. In Part 1 treatments were started at level 1 doses, which were based on prior clinical experience with the medications studied. Dose escalation followed a traditional "3+3" design. The subjects in Part 2 were treated with dose level 3. Oxaliplatin infusion was given on day 1 of each cycle. TAS-102 was taken twice daily on days 1-5 of each cycle. |
Combination treatment with TAS-102 and oxaliplatin.
TAS-102 is an oral medication; oxaliplatin (TAS-OX) is given by infusion.
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Overall Response Rate
Time Frame: up to 30 days following discontinuation of treatment
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Overall Response Rate was measured by Response Evaluation Criteria In Solid Tumor (RECIST) 1.1 criteria.
Tumors were assessed with CT or MRI: Complete Response (CR), Disappearance of all target lesions; Partial Response (PR), >=30% decrease in the sum of the longest diameter of target lesions; Overall Response (OR) = CR + PR.".
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up to 30 days following discontinuation of treatment
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Progression Free Survival
Time Frame: from the date of start of treatment to the date of first documented progression or any cause of death assessed up to 12 months.
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Progression Free Survival was assessed according to RECIST criteria version 1.1.
Progression is defined using Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.0), as a 20% increase in the sum of the longest diameter of target lesions, or a measurable increase in a non-target lesion, or the appearance of new lesions.
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from the date of start of treatment to the date of first documented progression or any cause of death assessed up to 12 months.
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Overall Survival
Time Frame: from the date of start of treatment to the date of any cause of death assessed up to 24 months.
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Overall Survival was assessed by the time to death from start of study.
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from the date of start of treatment to the date of any cause of death assessed up to 24 months.
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Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Jeremy S. Kortansky, M.D., Yale University
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
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
- 1605017852
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
product manufactured in and exported from the U.S.
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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