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Ajani, J.A. et al.

Ajani, Baker, Pisters, Ho, Mansfield, Feig, Charnsangavej,

Irinotecan/cisplatin in advanced, treated gastric or gastroesophageal junction carcinoma.

We conducted a phase II study to assess the response rate and toxicity profile of the irinotecan (CPT-11, Camptosar) plus cisplatin combination administered weekly to patients with at least one previous chemotherapy for advanced adenocarcinoma of the stomach or gastroesophageal junction. Patients with histologic proof of adenocarcinoma of the stomach orgastroesophageal junction with adequate liver, kidney, and bone marrow functions were treated with 50 mg/m2 of irinotecan plus 30 mg/m2 of cisplatin, both administered intravenously 1 day a week for 4 consecutive weeks, followed by a 2-week recovery period. Response rate, time to disease progression, survival, and toxic effects were analyzed. Of 32 registered patients, 29 were assessable. Nine patients (31%) achieved a partial response. Median time to disease progression was 7 weeks (range: 5-48+ weeks) and median survival time was 5 months (range: 2.5-31 months). There were no treatment-related deaths. Major toxic effects included diarrhea, neutropenia, and fatigue. Of 260 doses administered in 65 6-week courses, 46 doses were either delayed or missed. Most delayed or missed doses occurred in the third or fourth week of the cycle. We concluded that the combination of irinotecan and cisplatin is an active second-line therapy for patients with advanced gastric or gastroesophageal adenocarcinoma in whom one previous chemotherapy has failed. Modifications in doses and schedule are warranted to increase the tolerability of the regimen. Phase III trials are necessary to establish the clinical utility of irinotecan/cisplatin in these patient populations.[1]

References

Irinotecan/cisplatin in advanced, treated gastric or gastroesophageal junction carcinoma. Ajani, J.A., Baker, J., Pisters, P.W., Ho, L., Mansfield, P.F., Feig, B.W., Charnsangavej, C. Oncology (Williston Park, N.Y.) (2002) [Pubmed]

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