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Oncology 2006-Oct

Topotecan in combination with cisplatin for the treatment of stage IVB, recurrent, or persistent cervical cancer.

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Michael Brave
Ramzi Dagher
Ann Farrell
Sophia Abraham
Roshni Ramchandani
Jogarao Gobburu
Brian Booth
Xiaoping Jiang
Rajeshwari Sridhara
Robert Justice

Mots clés

Abstrait

OBJECTIVE

Topotecan, a camptothecin analog previously approved for the treatment of ovarian cancer and small-cell lung cancer, was granted regular approval by the US Food and Drug Administration (FDA) on June 14, 2006, for use in combination with cisplatin to treat women with stage IVB, recurrent, or persistent carcinoma of the cervix not amenable to curative treatment with surgery and/or radiation therapy. The purpose of this summary is to review the database supporting this approval.

METHODS

In a randomized multicenter study enrolling 293 eligible patients, topotecan plus cisplatin (TC) was compared with cisplatin monotherapy. The TC regimen consisted of cisplatin 50 mg/m2 IV over 1 hour on day 1 and topotecan 0.75 mg/m2 IV over 30 minutes on days 1, 2, and 3 every 21 days.

RESULTS

There was a clinically relevant and statistically significant improvement in overall survival in the TC treatment arm. Median overall survival was 9.4 months (95% confidence interval [CI]:7.9-11.9) in the TC arm, compared to 6.5 months (95% CI:5.8-8.8) with cisplatin alone. The unadjusted hazard ratio for overall survival between treatment arms was 0.76 (95% CI: 0.59-0.98, P = .033) favoring the combination arm. The most common toxicities with TC included myelosuppression, nausea and vomiting, mucositis, rash, and hepatotoxicity.

CONCLUSIONS

This report describes the FDA's review supporting this first approval of a chemotherapeutic drug for advanced cervical cancer based on demonstration of a survival benefit.

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