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RATIONALE: Drugs used in chemotherapy use 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. Combining surgery with chemotherapy and radiation therapy may kill more tumor cells and prevent recurrence of the cancer.
PURPOSE: Phase II trial to study the effectiveness of surgery with or without chemotherapy and radiation therapy in treating patients who have stage I rectal cancer.
- Determine the overall, disease-free, and colostomy-free survival rates in patients with stage I rectal cancer treated with local excision with or without adjuvant chemotherapy and radiotherapy.
- Determine the local, regional, and distant recurrence rates in patients treated with these regimens.
- Determine whether loco-regional recurrences after local excision can be successfully salvaged with radical surgery with or without adjuvant therapy for permanent cure in patients treated with these regimens.
- Determine whether the analysis of certain histological and molecular markers can help determine prognosis in patients treated with these regimens.
- Determine the anorectal, urinary, and sexual function effects in patients treated with these regimens.
- Determine the non-functional treatment morbidity and mortality exclusive of anorectal, urinary, and sexual function effects in patients treated with these regimens.
- Determine the overall survival of patients with pathology exclusions undergoing local excision.
- Determine the efficacy of the current standard in detecting recurrence during follow-up, including office visits, blood tests, and proctoscopy in patients treated with these regimens.
OUTLINE: This is a multicenter study.
All patients undergo full thickness disc excision. Patients with T3 disease or positive surgical margins after surgery are removed from study. Patients with T1 disease and negative surgical margins after surgery are observed. Patients with T2 disease and negative surgical margins after surgery receive adjuvant therapy.
Beginning 42 days after surgery, T2 patients receive leucovorin calcium (CF) IV over 2 hours with fluorouracil (5-FU) IV bolus 1 hour into the infusion once weekly for 6 weeks. Beginning 2 weeks after the completion of chemotherapy, patients receive chemoradiotherapy comprising radiotherapy once daily 5 times a week for 5 weeks and 5-FU IV continuously while receiving radiotherapy. Beginning 2 weeks after the completion of chemoradiotherapy, patients again receive CF IV over 2 hours with 5-FU IV bolus 1 hour into the infusion once weekly for 6 weeks. Chemotherapy repeats after 2 weeks rest for a total of 2 courses.
Patients are followed every 3 months for 2 years and then every 6 months for 5 years.
PROJECTED ACCRUAL: Approximately 320 patients will be accrued for this study within 5 years.
Primary Purpose: Treatment
fluorouracil, leucovorin calcium, adjuvant therapy, conventional surgery, radiation therapy
Northeast Alabama Regional Medical Center
National Cancer Institute (NCI)
Published on BioPortfolio: 2014-08-27T03:56:36-0400
RATIONALE: Radiation therapy uses high-energy x-rays to kill tumor cells. Drugs used in chemotherapy, such as fluorouracil and leucovorin, work in different ways to stop the growth of tumo...
RATIONALE: Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. Combining more than one drug, giving the drugs in different ways, an...
RATIONALE: Radiation therapy uses high-energy x-rays to kill tumor cells. Drugs used in chemotherapy, such as fluorouracil, oxaliplatin, and leucovorin, work in different ways to stop the ...
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RATIONALE: Radiation therapy uses high-energy x-rays to damage tumor cells. Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. It ...
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Drug therapy given to augment or stimulate some other form of treatment such as surgery or radiation therapy. Adjuvant chemotherapy is commonly used in the therapy of cancer and can be administered before or after the primary treatment.
Radiotherapy given to augment some other form of treatment such as surgery or chemotherapy. Adjuvant radiotherapy is commonly used in the therapy of cancer and can be administered before or after the primary treatment.
A followup operation to examine the outcome of the previous surgery and other treatments, such as chemotherapy or radiation therapy.
The active metabolite of FOLIC ACID. Leucovorin is used principally as its calcium salt as an antidote to folic acid antagonists which block the conversion of folic acid to folinic acid.
Combined chemotherapy and radiotherapy given to augment some other form of treatment such as surgery. It is commonly used in the therapy of cancer.
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In a clinical trial or interventional study, participants receive specific interventions according to the research plan or protocol created by the investigators. These interventions may be medical products, such as drugs or devices; procedures; or change...