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FOLFOX-4 3months Versus 6 Months and Bevacizumab as Adjuvant Therapy for Patients With Stage II/III Colon Cancer

A Randomized Trial Investigating the Role of FOLFOX-4 Regimen Duration (3 Versus 6 Months) and Bevacizumab as Adjuvant Therapy for Patients With Stage II/III Colon Cancer

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00646607
Acronym
TOSCA
Enrollment
3756
Registered
2008-03-28
Start date
2007-06-30
Completion date
2014-11-30
Last updated
2014-11-26

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

Conditions

Colon Cancer

Keywords

colorectal neoplasm, high risk, stage II/III

Brief summary

This project consists of two independent, following specific eligibility criteria and different randomisation schemes studies, later on called DURATION study and BEV study. Once randomised in the duration study, patients fulfilling eligibility criteria for BEV study may also be randomized to receive BEV or no BEV, in addition to FOLFOX-4 chemotherapy. As both are open label studies, there will be no blinding of treatment assignment.

Detailed description

At the present time the standard treatment for resected colon cancer with high possibility of relapse (high risk stage II and all stage III) is represented by the regimen FOLFOX (leucovorin, bolus and infusional 5fluorouracil and oxaliplatin), which is able to increase significantly the disease-free survival (DFS) at 3 and 4 years, whereas the advantage for 5-year overall survival (OS) (which is predicted by the previous parameter) could be observed only with a further increase of follow-up. The conventional duration of chemotherapy is today of 6 months (12 courses every 2 weeks), but this long drug exposure increases the risk of long-term neurotoxicity. A reduction of adjuvant chemotherapy under 6 months was proven effective in other cancers (breast, testis…) and is better tolerated by patients in clinical practice. On the other hand, bevacizumab significantly increases OS and all other parameters when combined with standard chemotherapy in advanced disease.

Interventions

DRUGFOLFOX (Oxaliplatin, 5Fluorouracil, Lederfolin)

To assess whether a 3-month FOLFOX-4 treatment is at least equivalent to a 6-month FOLFOX-4 treatment

Sponsors

Mario Negri Institute for Pharmacological Research
CollaboratorOTHER
Gruppo Italiano per lo studio dei Carcinomi dell'Apparato Digerente
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

* Histologically confirmed AJCC/UICC high-risk stage II or stage III colon cancer . High-risk stage III patients (T4, N+, M0, or any T, N2, M0) may also be further randomized in the BEV study (plus or minus BEV) * Stage II patients have to be considered at high-risk if they fulfill \>1 of the following criteria: * T4 tumours, * grade \>3, * clinical presentation with bowel obstruction or perforation, * histological signs of vascular or lymphatic or perineural invasion, * \<12 nodes examined * Age 18 to 75 years * Curative surgery no less than 3 ( 4 in the BEV study) and no more than 8 weeks prior to randomization * ECOG performance Status (ECOG-PS) \<1 * Signed written informed consent obtained prior to any study specific procedures

Exclusion criteria

* Macroscopic or microscopic evidence of residual tumor (R1 or R2 resections). * Previous anti-angiogenic treatment for any malignancy; cytotoxic chemotherapy, radiotherapy or immunotherapy for colon cancer * Other malignancies within the last 5 years (other than curatively treated basal cell carcinoma of the skin and/or in situ carcinoma of the cervix) * Lactating women * Fertile women (\<2 years after last menstruation) and men of childbearing potential not willing to use effective means of contraception * History of clinically relevant psychiatric disability , precluding informed consent * Clinically relevant cardiovascular disease * History or presence of other diseases * Evidence of bleeding diathesis or coagulopathy * Current or recent (within 10 days prior to study treatment start) use of full-dose oral or parenteral anticoagulants or thrombolytic agent for therapeutic purposes * Chronic, daily treatment with high-dose aspirin (\>325 mg/day) or clopidogrel (\>75 mg/day) * Current or recent (within the 28 days prior to randomization) treatment with another investigational drug or participation in another investigational study

Design outcomes

Primary

MeasureTime frame
disease free survival (DFS)time from randomization date to date of local or regional relapse

Secondary

MeasureTime frame
overall Survival (OS), Toxicity and incidence of adverse eventsfrom the day of randomisation to the date of death from any cause.

Countries

Italy

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Sep 16, 2026