PMID- 19294387 OWN - NLM STAT- MEDLINE DCOM- 20090917 LR - 20220330 IS - 1432-0843 (Electronic) IS - 0344-5704 (Linking) VI - 64 IP - 6 DP - 2009 Nov TI - A randomized, phase II, dose-finding study of the pan-ErbB receptor tyrosine-kinase inhibitor CI-1033 in patients with pretreated metastatic breast cancer. PG - 1139-48 LID - 10.1007/s00280-009-0975-z [doi] AB - PURPOSE: To evaluate the efficacy and safety of the pan-ErbB receptor tyrosine-kinase inhibitor CI-1033 in metastatic breast cancer (MBC). EXPERIMENTAL DESIGN: Patients with measurable, progressive, or recurrent MBC whose primary tumor expressed > or =1 ErbB receptor were randomized to the following CI-1033 regimens: 50 mg (arm A) or 150 mg (arm B) daily without rest period, or 450 mg/day x 14 days every 21 days (arm C). The primary endpoint was 1-year progression-free survival (PFS). RESULTS: Overall, 194 patients were treated. One-year PFS estimates were 3.8, 2.0, and 4.6%; median PFS was 61, 56, and 58 days; and investigator-assessed overall response rates were 1.5, 1.5, and 7.3%, in arms A, B, and C, respectively. Response duration was 110-419 days. In arm C, response (18.8 vs. 2.6%) and 1-year overall survival rates (86.7 vs. 47.5%) were greater in patients with HER2-positive versus HER2-negative tumors. The incidence of grade 3/4 adverse events (AEs) was dose-dependent, affecting 10.3, 48.6, and 80.4% of patients in arms A, B and C, respectively. The most common grade 3/4, treatment-related AEs were diarrhea, asthenia, and stomatitis. Arm C enrollment was prematurely discontinued due to a high frequency of grade 3/4 AEs. CONCLUSION: Single-agent CI-1033 did not show clinically meaningful activity in heavily pretreated patients with MBC expressing > or =1 ErbB receptor. Antitumor activity was observed in arm C patients with HER2-positive tumors. However, only the 50 mg dose was well tolerated, and the highest dose reached unacceptable levels of toxicity. FAU - Rixe, Olivier AU - Rixe O AD - Hopital de la Pitie Salpetriere, APHP, Paris, France. rixeo@mail.nih.gov FAU - Franco, Sandra X AU - Franco SX FAU - Yardley, Denise A AU - Yardley DA FAU - Johnston, Stephen R AU - Johnston SR FAU - Martin, Miguel AU - Martin M FAU - Arun, Banu K AU - Arun BK FAU - Letrent, Stephen P AU - Letrent SP FAU - Rugo, Hope S AU - Rugo HS LA - eng PT - Clinical Trial, Phase II PT - Journal Article PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't DEP - 20090318 PL - Germany TA - Cancer Chemother Pharmacol JT - Cancer chemotherapy and pharmacology JID - 7806519 RN - 0 (Morpholines) RN - 0 (Receptors, Estrogen) RN - C78W1K5ASF (Canertinib) RN - EC 2.7.10.1 (ERBB2 protein, human) RN - EC 2.7.10.1 (ERBB4 protein, human) RN - EC 2.7.10.1 (ErbB Receptors) RN - EC 2.7.10.1 (Receptor, ErbB-2) RN - EC 2.7.10.1 (Receptor, ErbB-3) RN - EC 2.7.10.1 (Receptor, ErbB-4) SB - IM MH - Adult MH - Aged MH - Breast Neoplasms/*drug therapy/metabolism/*pathology MH - Disease-Free Survival MH - ErbB Receptors/antagonists & inhibitors/metabolism MH - Female MH - Humans MH - Kaplan-Meier Estimate MH - Middle Aged MH - Morpholines/*administration & dosage/adverse effects/*therapeutic use MH - *Neoplasm Metastasis/drug therapy MH - Receptor, ErbB-2/antagonists & inhibitors/metabolism MH - Receptor, ErbB-3/metabolism MH - Receptor, ErbB-4 MH - Receptors, Estrogen/metabolism MH - Treatment Outcome EDAT- 2009/03/19 09:00 MHDA- 2009/09/18 06:00 CRDT- 2009/03/19 09:00 PHST- 2008/10/22 00:00 [received] PHST- 2009/03/02 00:00 [accepted] PHST- 2009/03/19 09:00 [entrez] PHST- 2009/03/19 09:00 [pubmed] PHST- 2009/09/18 06:00 [medline] AID - 10.1007/s00280-009-0975-z [doi] PST - ppublish SO - Cancer Chemother Pharmacol. 2009 Nov;64(6):1139-48. doi: 10.1007/s00280-009-0975-z. Epub 2009 Mar 18.