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Home » FDA approves Zaltrap for metastatic colorectal cancer

FDA approves Zaltrap for metastatic colorectal cancer

August 6, 2012
CenterWatch Staff

The FDA has approved Sanofi-Aventis’ Zaltrap (ziv-aflibercept) for use in combination with a FOLFIRI (folinic acid, fluorouracil and irinotecan) chemotherapy regimen to treat adults with colorectal cancer.

Zaltrap, an angiogenesis inhibitor that inhibits the blood supply to tumors, is intended for patients whose cancer has spread to other parts of the body (metastatic) and whose tumors are resistant to or progressed after an oxaliplatin-containing chemotherapy regimen.

“This approval demonstrates the benefits of adding a biological agent, Zaltrap, to a commonly used chemotherapy drug regimen, FOLFIRI,” said Richard Pazdur, M.D., director of the office of hematology and oncology products in the FDA’s Center for Drug Evaluation and Research. “An improvement in median survival time was noted with the addition of Zaltrap to FOLFIRI, accompanied by an improvement in response rate and a delay in tumor progression and growth.”

Zaltrap’s safety and effectiveness was evaluated in a randomized clinical study of 1,226 patients with metastatic colorectal cancer whose cancer grew while receiving oxaliplatin-based combination chemotherapy, or whose cancer was removed by surgery but returned within six months after receiving oxaliplatin-based combination chemotherapy for post-surgery (adjuvant) treatment. Participants received treatment until their cancer progressed or side effects became unacceptable.

The study was designed to measure overall survival, or the length of time a patient lived. Patients who were assigned to receive the Zaltrap plus FOLFIRI combination lived an average of 13.5 months compared to an average of 12 months for those receiving FOLFIRI plus placebo. A reduction in tumor size occurred in 20% of patients receiving the Zaltrap plus FOLFIRI combination versus 11% for those receiving FOLFIRI plus placebo.

In addition, the clinical trial demonstrated an improvement in progression-free survival, or the time a patient lived without the cancer progressing. The progression-free survival for patients receiving the Zaltrap plus FOLFIRI combination was 6.9 months compared with 4.7 months for those receiving FOLFIRI plus placebo.

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