A Clinical Trial Comparing Preoperative Radiation Therapy And Capecitabine With or Without Oxaliplatin With Preoperative Radiation Therapy And Continuous Intravenous Infusion Of 5-Fluorouracil With or Without Oxaliplatin In The Treatment Of Patients With Operable Carcinoma Of The Rectum
Overview
- Phase
- Phase 3
- Intervention
- fluorouracil
- Conditions
- Colorectal Cancer
- Sponsor
- NSABP Foundation Inc
- Enrollment
- 1608
- Primary Endpoint
- Loco-regional disease control as assessed by evidence of tumor at 3 years
- Last Updated
- 10 years ago
Overview
Brief Summary
RATIONALE: Drugs used in chemotherapy, such as capecitabine, fluorouracil, and oxaliplatin work in different ways to stop tumor cells from dividing so they stop growing or die. Radiation therapy uses high-energy x-rays to damage tumor cells.
PURPOSE: This randomized phase III trial is studying radiation therapy and either capecitabine or fluorouracil with or without oxaliplatin and comparing them to see how well they work when given before surgery in treating patients with resectable rectal cancer. It is not yet known whether radiation therapy and either capecitabine or fluorouracil is more effective with or without oxaliplatin in treating rectal cancer.
Detailed Description
OBJECTIVES: Primary * Compare the rate of local-regional relapse in patients with resectable rectal cancer treated with chemoradiotherapy comprising radiation therapy and either capecitabine or fluorouracil with or without oxaliplatin. Secondary * Compare the rate of clinical complete response in patients treated with these regimens. * Compare the rate of pathologic complete response in patients treated with these regimens. * Determine the increase in the number of patients who are able to undergo sphincter-saving surgery after treatment with these regimens. * Correlate genetic patterns and the presence or absence of specific tissue biomarkers with response and prognosis in patients treated with these regimens. * Compare preoperative quality of life (QOL) of patients treated with oral capecitabine versus continuous infusion with fluorouracil. * Determine the impact of oxaliplatin on neurotoxicity in patients treated with these regimens. * Compare the toxic effects of these regimens in these patients. * Compare the convenience of care in patients treated with these regimens. * Determine the impact of the type of surgical management on QOL at 1 and 5 years postoperatively in these patients. * Describe the long-term impact of cancer treatment on symptoms (e.g., vitality and neurotoxicity) and QOL at 5 years after randomization (5-year follow-up visit). OUTLINE: This is a randomized, multicenter study. Patients are stratified according to participating center, gender, clinical tumor stage (stage II vs stage III), and surgical intent (sphincter saving vs non-sphincter saving). Patients are randomized to 1 of 4 treatment arms. * Arm 1: Patients receive fluorouracil IV continuously and undergo radiotherapy once daily 5 days a week for 5-6 weeks. * Arm 2: Patients receive fluorouracil and undergo radiotherapy as in arm 1. Patients also receive oxaliplatin IV over 1 hour once weekly for 5 weeks. * Arm 3: Patients receive oral capecitabine twice daily and undergo radiotherapy once daily 5 days a week for 5-6 weeks. * Arm 4: Patients receive capecitabine and undergo radiotherapy as in arm 3. Patients also receive oxaliplatin as in arm 2. Within 6-8 weeks after the completion of chemoradiotherapy, patients with responding or stable disease undergo surgery. Patients with progressive disease are treated at the discretion of the investigator and continue to be followed. Quality of life is assessed at baseline, at completion of chemoradiotherapy, and at 1 and 5 years after surgery. After completion of study treatment, patients are followed every 6 months for 5 years. PROJECTED ACCRUAL: A total of 1,606 patients will be accrued for this study within 4 years.
Investigators
Eligibility Criteria
Inclusion Criteria
- •Patients must consent to participate in the study and must have signed and dated an IRB-approved consent form conforming to federal and institutional guidelines.
- •Patients must be \> 18 years of age.
- •Patients must have a life expectancy of 5 years, excluding their diagnosis of cancer (as determined by the investigator), and must have an Eastern Cooperative Oncology Group (ECOG) (Zubrod) performance status of 0 or
- •Patients must have a diagnosis of adenocarcinoma of the rectum obtained by a biopsy technique which leaves the major portion of the tumor intact.
- •The interval between the initial diagnosis of rectal adenocarcinoma and randomization must be no more than 42 days.
- •Prior to randomization, the investigator must specify the intent for sphincter saving or non-sphincter saving surgery.
- •The tumor must be either palpable by digital rectal exam or be accessible via a proctoscope or sigmoidoscope.
- •Distal border of the tumor must be located \< 12 cm from the anal verge.
- •The tumor must be considered by the surgeon to be amenable to curative resection. (Note that curative resection can include pelvic exenteration.)
- •The tumor must be clinically Stage II (T3-4 N0 with N0 being defined as all imaged lymph nodes are \< 1.0 cm) or Stage III (T1-4 N1-2 with the definition of a clinically positive node being any node \> 1.0 cm). Stage of the primary tumor may be determined by ultrasound or Magnetic Resonance Imaging (MRI). Computed Tomography (CT) scan is acceptable provided there is evidence of T4 and/or N1-2 disease.
Exclusion Criteria
- •Findings of metastatic disease.
- •On imaging, clear indication of involvement of the pelvic side wall(s).
- •Rectal cancers other than adenocarcinoma, i.e., sarcoma, lymphoma, carcinoid, squamous cell carcinoma, cloacogenic carcinoma, etc.
- •History of invasive rectal malignancy, regardless of disease-free interval.
- •Pregnancy or lactation at the time of proposed randomization. Eligible patients of reproductive potential (both sexes) must agree to use adequate contraceptive methods.
- •Any therapy for this cancer prior to randomization.
- •Synchronous colon cancer.
- •History of viral hepatitis or other chronic liver disease.
- •Nonmalignant systemic disease (cardiovascular, renal, hepatic, etc.) that would preclude the patient from receiving any chemotherapy treatment option or would prevent required follow-up. Specifically excluded are patients with active ischemic heart disease (class III\* or class IV\*\* myocardial disease as described by the New York Heart Association), a recent history (within 6 months) of myocardial infarction, or symptomatic arrhythmia at the time of randomization. \*Class III: Patients with cardiac disease resulting in marked limitation of physical activity. Such patients are comfortable at rest. Less than ordinary physical activity that causes fatigue, palpitation, dyspnea, or anginal pain. \*\*Class IV: Patients with cardiac disease resulting in inability to perform any physical activity without discomfort. Symptoms of cardiac insufficiency or anginal syndrome may be present even at rest.
- •Patients who, in the opinion of the investigator, have uncontrolled hypertension.
Arms & Interventions
Arm 2: 5-FU + RT + Oxaliplatin
Patients receive fluorouracil and undergo RT as in arm 1. Patients also receive oxaliplatin IV over 1 hour once weekly for 5 weeks.
Intervention: fluorouracil
Arm 1: 5-FU + RT
Patients receive fluorouracil IV continuously and undergo radiation therapy (RT) once daily 5 days a week for 5-6 weeks.
Intervention: fluorouracil
Arm 1: 5-FU + RT
Patients receive fluorouracil IV continuously and undergo radiation therapy (RT) once daily 5 days a week for 5-6 weeks.
Intervention: radiation therapy
Arm 2: 5-FU + RT + Oxaliplatin
Patients receive fluorouracil and undergo RT as in arm 1. Patients also receive oxaliplatin IV over 1 hour once weekly for 5 weeks.
Intervention: oxaliplatin
Arm 2: 5-FU + RT + Oxaliplatin
Patients receive fluorouracil and undergo RT as in arm 1. Patients also receive oxaliplatin IV over 1 hour once weekly for 5 weeks.
Intervention: radiation therapy
Arm 3: Capecitabine + RT
Patients receive oral capecitabine twice daily and undergo RT once daily 5 days a week for 5-6 weeks.
Intervention: capecitabine
Arm 3: Capecitabine + RT
Patients receive oral capecitabine twice daily and undergo RT once daily 5 days a week for 5-6 weeks.
Intervention: radiation therapy
Arm 4: Capecitabine + RT + Oxaliplatin
Patients receive capecitabine and undergo RT as in arm 3. Patients also receive oxaliplatin as in arm 2.
Intervention: capecitabine
Arm 4: Capecitabine + RT + Oxaliplatin
Patients receive capecitabine and undergo RT as in arm 3. Patients also receive oxaliplatin as in arm 2.
Intervention: oxaliplatin
Arm 4: Capecitabine + RT + Oxaliplatin
Patients receive capecitabine and undergo RT as in arm 3. Patients also receive oxaliplatin as in arm 2.
Intervention: radiation therapy
Outcomes
Primary Outcomes
Loco-regional disease control as assessed by evidence of tumor at 3 years
Time Frame: Time from randomization to first local recurrence up to 3 years
Secondary Outcomes
- Pathologic complete response as assessed by gross and microscopic exam of surgical specimens at time of definitive analysis(At the time of surgery approximately 6 weeks)
- Quality of life as assessed by FACT-C trial outcome index and EORTC CR38 after definitive analysis(Assessed prior to therapy and at approximately 5 weeks, 15 months, 5 years)
- Neurotoxicity as assessed by FACT-NTX scale after definitive analysis(Assessed prior to therapy and at approximately 5 weeks, 15 months, 5 years)
- Clinical complete response as assessed by digital rectal exam and sigmoidoscopy or proctoscopy at time of definitive analysis(Prior to surgery approximately 6 weeks)
- Sphincter-saving surgery at time of definitive analysis(At the time of surgery approximately 6 weeks)
- Survival as measured by deaths from any cause at time of definitive analysis(From time of randomization through 5 years)
- Disease-free survival as assessed by recurrence, second primary cancer, or death from any cause at time of definitive analysis(From time of randomization through 5 years)
- Tissue biomarkers as assessed by analysis of tumor tissue using current biotechnology after definitive analysis(At the time of surgery approximately 6 weeks)
- Symptoms as assessed by fluoropyrimidine symptom scale adapted from SWOG after definitive analysis(Assessed prior to therapy and at approximately 5 weeks, 15 months)
- Vitality as assessed by SF-36 vitality scale after definitive analysis(Assessed prior to therapy and at approximately 5 weeks, 15 months, 5 years)
- Convenience of care as assessed by NSABP C-06 convenience of care scale adapted from ECOG after definitive analysis(Assessed prior to therapy and at approximately 5 weeks, 15 months)