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Oxaliplatin

Bevacizumab

Capecitabine

Antineoplastic Agents, Immunological

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Ca 1250 mg/m2 daily orally continuously, B 7.5 mg/kg i.v. q 3 w

capecitabine + bevacizumab

observation

C. JA Punt, MD PhD

The optimal duration of systemic treatment in patients with advanced colorectal cancer is unknown.

In this study the effects of bevacizumab and low-dose continuous chemotherapy with capecitabine is investigated in patients who have responded to 6 courses of oxaliplatin, capecitabine and bevacizumab ("induction treatment", at standard doses). This treatment is continued until progression or severe toxicity. This regimen is compared to the effects a observation without treatment after the induction treatment.

In case of disease progression, induction treatment will be reintroduced.

Standard 1st-line treatment for patients with advanced colorectal cancer currently consists of chemotherapy plus bevacizumab. With this approach the median overall survival is approximately 20 months, and progression-free survival in first-line approximately 9-11 months. The optimal duration of treatment is unknown. Current data suggest that the efficacy of bevacizumab is dependent on concomitant use of chemotherapy. However, oxaliplatin almost invariably gives rise to neuropathy after 6-8 cycles. Prolonged use of capecitabine is associated with e.g. hand-foot syndrome. Lastly, the prolonged use of these agents is associated with considerable costs.

Evidence, mainly preclinical, suggests that continuous dosing metronomic chemotherapy may be more efficacious than interval-chemotherapy given at MTD. In this study the concept of metronomic chemotherapy is explored by administering a continuous daily instead of the usual 2 weeks-on/1 week-off oral dosing regimen of low-dose capecitabine plus bevacizumab as maintenance therapy after induction combination chemotherapy given at MTD plus bevacizumab.

Maintenance Treatment Versus Observation After Induction in Advanced Colorectal Carcinoma

Maintenance Treatment With Capecitabine and Bevacizumab Versus Observation After Induction Treatment With Chemotherapy and Bevacizumab as First-line Treatment in Patients With Advanced Colorectal Carcinoma

Koningin Wilhelmina Fonds

Sanofi

Hoffmann-La Roche

Dutch Colorectal Cancer Group

Study title	NCT ID	Conditions	Interventions	Eligibility	Organization	Link
Maintenance Treatment Versus Observation After Induction in Advanced Colorectal Carcinoma	NCT00442637	Colorectal Canc...	capecitabine + ... observation	18 Years -	Dutch Colorectal Cancer Group
Maintenance Treatment Versus Observation After Induction in Advanced Colorectal Carcinoma	NCT00442637	Colorectal Canc...	capecitabine + ... observation	18 Years -	Dutch Colorectal Cancer Group

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