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S-1 and Bevacizumab in Treating Patients With Colorectal Cancer That is Recurrent or Cannot Be Removed by Surgery

Phase II Study of Combination Chemotherapy With S-1 Plus Avastin in Unresectable or Recurrent Colorectal Cancer After Failure of Prior Chemotherapy, Including Irinotecan and Oxaliplatin Regimens.

Status
UNKNOWN
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00974389
Enrollment
40
Registered
2009-09-10
Start date
2009-07-31
Completion date
Unknown
Last updated
2013-08-12

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Colorectal Cancer

Keywords

stage III colon cancer, stage III rectal cancer, stage IV colon cancer, stage IV rectal cancer, recurrent colon cancer, recurrent rectal cancer

Brief summary

RATIONALE: Drugs used in chemotherapy, such as S-1, work in different ways to stop the growth of tumor cells, either by killing the cells or by stopping them from dividing. Monoclonal antibodies, such as bevacizumab, can block tumor growth in different ways. Some block the ability of tumor cells to grow and spread. Others find tumor cells and help kill them or carry tumor-killing substances to them. Giving S-1 together with bevacizumab may kill more tumor cells. PURPOSE: This phase II trial is studying how well giving S-1 together with bevacizumab works as third-line therapy in treating patients with colorectal cancer that is recurrent or that cannot be removed by surgery.

Detailed description

OBJECTIVES: * To evaluate giving S-1 with bevacizumab to see how well it works as third-line therapy in KRAS-mutation patients with unresectable or recurrent colorectal cancer. OUTLINE: Patients receive oral S-1 twice daily on days 1-28 and bevacizumab IV on days 1, 15, and 29. Courses repeat every 42 days in the absence of disease progression or unacceptable toxicity.

Interventions

BIOLOGICALbevacizumab

Sponsors

Osaka Medical College
Lead SponsorOTHER

Study design

Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
20 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

DISEASE CHARACTERISTICS: * Histologically confirmed colorectal carcinoma * Inoperable, locally advanced, or metastatic disease * KRAS-mutated * Concurrently receiving treatment containing irinotecan and oxaliplatin regimens for unresectable or recurrent colorectal cancer * Measurable disease according to RECIST * No moderate or severe ascites or pleural effusion requiring treatment * No metastasis to the CNS PATIENT CHARACTERISTICS: * ECOG performance status 0-2 * White blood cell count \> 3,500/mm³ but \< 12,000/mm³ * Neutrophil count \> 1,500/mm³ * Hemoglobin \> 9.0 g/dL * Platelet count \> 100,000/mm³ * Total bilirubin \< 1.5 mg/dL * AST and ALT \< 100 U/L (\< 200 U/L in patients with liver metastasis) * Serum creatinine \< 1.2 mg/dL * Creatinine clearance ≥ 50 mL/min * Urine dipstick for proteinuria \< 1+ * INR \< 1.5 * Not pregnant or nursing * Able to take capsules orally * No active second cancer * No active infections (e.g., patients with pyrexia of ≥ 38°C) * No serious complications (e.g., pulmonary fibrosis, interstitial pneumonitis, heart failure, renal failure, hepatic failure, poorly controlled diabetes, or hypertension) * No electrocardiographic abnormalities with cardiac disorder that would clinically preclude the execution of the study as judged by the investigator * No serious drug hypersensitivity or a history of drug allergy * No thrombosis, cerebral infarction, myocardial infarction, or pulmonary embolism * No history or evidence of inherited bleeding diathesis or coagulopathy with the risk of bleeding * No clinically significant traumatic injury within the past 4 weeks * No severe mental disorder PRIOR CONCURRENT THERAPY: * See Disease Characteristics * Concurrent low-dose aspirin therapy (\< 325 mg/day) allowed * More than 4 weeks since prior major surgical procedure or open biopsy * No prior therapy radiotherapy * No prior therapy with S-1 * No prior chemotherapy include irinotecan and oxaliplatin as first- or second-line treatment. * No concurrent continuous treatment with steroids * No concurrent treatment with flucytosine

Design outcomes

Primary

MeasureTime frame
Disease-control rate

Secondary

MeasureTime frame
Response rate
Progression-free survival
Overall survival
Safety

Countries

Japan

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026