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- W4361951573 abstract "<div>Abstract<p><b>Purpose:</b> EGFR is frequently overexpressed in cervical cancer, suggesting EGFR blockade as a promising treatment approach. Cetuximab, an anti EGFR antibody, used conjointly with radiochemotherapy, was feasible in first-line treatment of cervix carcinoma limited to the pelvis.</p><p><b>Experimental Design:</b> This randomized phase II trial enrolled 78 FIGO stage IB2–IIIB cervical cancer patients to either cisplatin-based radiochemotherapy alone (arm B, <i>n</i> = 38) or conjointly with a 6-week course of weekly cetuximab (arm A, <i>n</i> = 40). Brachytherapy was given to the pelvic mass. Primary endpoint was disease-free survival (DFS) at 2 years. EGFR expression and targeted sequencing were performed in 54 of 78 patients.</p><p><b>Results:</b> Cetuximab over a 6-week period did not improve DFS at 24 months. At 31 months median follow-up, DFS was not significantly different (<i>P</i> = 0.18). Complete response at 4 to 6 months was strongly predictive for excellent DFS (log-rank test; <i>P</i> < 0.001). <i>PIK3CA, KRAS</i>, and <i>STK11</i> mutations were observed in 22%, 4%, and 2% of patients, respectively. No tumor with a <i>PI3K</i> pathway mutation showed complete response (0/8 in arm A and 0/6 in arm B), whereas 14 of 52 (27%) tumors without mutations did (<i>P</i> = 0.021). <i>PI3K</i> pathway-mutated tumors showed a trend toward poorer DFS (<i>P</i> = 0.06) following cetuximab (8/22) as compared with those following standard treatment only (6/18).</p><p><b>Conclusions:</b> Similar to patients with head and neck cancer, patients with cervical cancer showed no gain in DFS at 2 years following a combined treatment of cetuximab with radiochemotherapy. Although treatment tolerance and compliance were satisfactory, it remains to be demonstrated whether maintenance therapy with cetuximab could be beneficial in selected patient groups. <i>Clin Cancer Res; 21(11); 2530–7. ©2015 AACR</i>.</p></div>" @default.
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- W4361951573 date "2023-03-31" @default.
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- W4361951573 title "Data from <i>PIK3CA</i> Pathway Mutations Predictive of Poor Response Following Standard Radiochemotherapy ± Cetuximab in Cervical Cancer Patients" @default.
- W4361951573 doi "https://doi.org/10.1158/1078-0432.c.6523898.v1" @default.
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