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Gynecol Oncol. 2008 Mar;108(3):493-9. doi: 10.1016/j.ygyno.2007.11.029. Epub 2008 Jan 14.

Phase II trial of cetuximab and carboplatin in relapsed platinum-sensitive ovarian cancer and evaluation of epidermal growth factor receptor expression: a Gynecologic Oncology Group study.

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  • 1Department of Gynecologic Oncology, Duke University Medical Center, Durham, North Carolina 27710, USA.



This phase II trial assessed the activity and tolerability of cetuximab (C225, Erbitux) in combination with carboplatin in patients with relapsed platinum-sensitive ovarian or primary peritoneal carcinoma.


Patients were to receive combination therapy with cetuximab (initial dose of 400 mg/m2 intravenously on cycle 1, day 1, followed by weekly infusions of 250 mg/m2) and carboplatin (AUC of 6 on day 1 and every 3 weeks). The primary objectives of this trial were to estimate the anti-tumor activity and adverse events of this combination therapy. Immunohistochemical expression of EGFR was evaluated in tumor specimens from patients enrolled in this trial.


Of the 29 patients, 28 (97%) were eligible and evaluable for analysis of the efficacy and toxicity of cetuximab administered in combination with carboplatin. Of the evaluable entries, 26 had EGFR-positive tumors and the response rate in this group of patients was as follows: 9 demonstrated an objective response (3 CR; 6 PR) and 8 had stable disease. The response rate did not meet criteria for opening a second stage of accrual. The median time to progression was 9.4+ months (range: .9-22.2+). The most commonly observed adverse events were dermatologic toxicity (grade 3 in 32%), thrombocytopenia (grade 3 in 14%), and hypersensitivity reactions (grade 3 and 4 in 18%).


Cetuximab administered in combination with carboplatin had modest activity in screened patients with EGFR-positive, relapsed platinum-sensitive ovarian or primary peritoneal carcinoma. Cetuximab was associated with an acneiform rash in a majority of patients and occasional serious hypersensitivity reactions.

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