A pilot study of preoperative (Pre-op), single-dose ipilimumab (Ipi) and/or cryoablation (Cryo) in women (pts) with early-stage/resectable breast cancer (ESBC).
2013
67 Background: Intratumoral cryo combined with immune modulation generates a potent systemic anti-tumor immune response that might improve recurrence free survival in ESBC. In this study, we evaluate the safety of pre-op cryo and/or ipi (10mg/kg) in pts with ESBC. Radiographic correlates and intratumoral/serologic immune responses are also explored. Methods: Eligible pts are ≥18y of age with operable ≥1.5 cm invasive ESBC, no history of autoimmune disease and planned mastectomy. Pts are sequentially assigned to receive pre-op: cryo alone (Group-A), ipi alone (B), or ipi with cryo (C). Cryo is administered 7-10d prior to surgery. Ipi is administered 8-15d prior to surgery (1-5d prior to cryo). If at least 5/6 pts in each group proceed with surgery without delay, the regimen will be considered safe/tolerable. Toxicity evaluation continues for 12 wks after ipi administration for Groups B and C. Results: As of May 1, 2013, 7/7 pts were enrolled to Group-A (expanded after a possible technical failure in 1 pt) ...
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