PMID- 26543765 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20151106 LR - 20220310 IS - 2193-1801 (Print) IS - 2193-1801 (Electronic) IS - 2193-1801 (Linking) VI - 4 DP - 2015 TI - A phase I/II trial of epirubicin and docetaxel in locally advanced breast cancer (LABC) on 2-weekly or 3-weekly schedules: NCIC CTG MA.22. PG - 631 LID - 10.1186/s40064-015-1392-x [doi] LID - 631 AB - This phase I/II neoadjuvant trial (ClinicalTrials.gov identifier NCT00066443) determined maximally-tolerated doses (MTD), dose-limiting toxicities, response-to-therapy, and explored the role of novel response biomarkers. MA.22 accrued T3N0, any N2 or N3, and T4 breast cancer patients. Treatment was 6 cycles of 3-weekly (Schedule A; N = 47) or 8 cycles of 2-weekly (Schedule B; N = 46) epirubicin/docetaxel chemotherapy in sequential phase I/II studies, with growth factor support. In phase I of each schedule, MTDs were based on DLT. In phase II, clinical responses (CR/PR) and pathologic complete responses (pCR) were assessed. Tumor biopsy cores were obtained pre-, mid-, and post-treatment: 3 for pathologic assessment; 3 for microarray studies. DLT for Schedule A was febrile neutropenia at 105 mg/m(2) epirubicin and 75 mg/m(2) docetaxel; for schedule B, it was fatigue at 75 mg/m(2) for both agents. Phase II doses were 90 mg/m(2) epirubicin/75 mg/m(2) docetaxel for Schedule A and 60 mg/m(2) (both agents) for Schedule B. Schedule A CR/PR and pCR rates were 90 and 10 %, with large reductions in tumor RNA content and integrity following treatment; Schedule B results were 93 and 0 %, with smaller reductions in RNA quality. Pre-treatment expression of several genes was associated with clinical response, including those within a likely amplicon at 17q12 (ERBB2, TCAP, GSDMB, and PNMT). The combination regimens had acceptable toxicity, good clinical response, induction of changes in tumor RNA content and integrity. Pre-treatment expression of particular genes was associated with clinical responses, including several near 17q12, which with ERBB2, may better identify chemoresponsiveness. FAU - Trudeau, Maureen Elizabeth AU - Trudeau ME AD - Sunnybrook Odette Cancer Centre, University of Toronto, 2075 Bayview Avenue, Toronto, ON M4N 3M5 Canada. FAU - Chapman, Judith-Anne W AU - Chapman JA AD - NCIC Clinical Trials Group, Queen's University, 10 Stuart Street, Kingston, ON K7L 3N6 Canada. FAU - Guo, Baoqing AU - Guo B AD - Advanced Medical Research Institute of Canada (AMRIC), 41 Ramsey Lake Road, Sudbury, ON P3E 5J1 Canada. FAU - Clemons, Mark J AU - Clemons MJ AD - The Ottawa Hospital Cancer Centre, University of Ottawa, 501 Smyth Road, Ottawa, ON K1H 8L6 Canada. FAU - Dent, Rebecca A AU - Dent RA AD - Sunnybrook Odette Cancer Centre, University of Toronto, 2075 Bayview Avenue, Toronto, ON M4N 3M5 Canada. FAU - Jong, Roberta A AU - Jong RA AD - Sunnybrook Odette Cancer Centre, University of Toronto, 2075 Bayview Avenue, Toronto, ON M4N 3M5 Canada. FAU - Kahn, Harriette J AU - Kahn HJ AD - Sunnybrook Odette Cancer Centre, University of Toronto, 2075 Bayview Avenue, Toronto, ON M4N 3M5 Canada. FAU - Pritchard, Kathleen I AU - Pritchard KI AD - Sunnybrook Odette Cancer Centre, University of Toronto, 2075 Bayview Avenue, Toronto, ON M4N 3M5 Canada. FAU - Han, Lei AU - Han L AD - NCIC Clinical Trials Group, Queen's University, 10 Stuart Street, Kingston, ON K7L 3N6 Canada. FAU - O'Brien, Patti AU - O'Brien P AD - NCIC Clinical Trials Group, Queen's University, 10 Stuart Street, Kingston, ON K7L 3N6 Canada. FAU - Shepherd, Lois E AU - Shepherd LE AD - NCIC Clinical Trials Group, Queen's University, 10 Stuart Street, Kingston, ON K7L 3N6 Canada. FAU - Parissenti, Amadeo M AU - Parissenti AM AD - Advanced Medical Research Institute of Canada (AMRIC), 41 Ramsey Lake Road, Sudbury, ON P3E 5J1 Canada. LA - eng SI - ClinicalTrials.gov/NCT00066443 PT - Journal Article DEP - 20151021 PL - Switzerland TA - Springerplus JT - SpringerPlus JID - 101597967 PMC - PMC4627986 OTO - NOTNLM OT - Docetaxel OT - Epirubicin OT - LABC OT - Microarray OT - Phase I/II OT - Response biomarkers EDAT- 2015/11/07 06:00 MHDA- 2015/11/07 06:01 PMCR- 2015/10/21 CRDT- 2015/11/07 06:00 PHST- 2015/09/15 00:00 [received] PHST- 2015/10/01 00:00 [accepted] PHST- 2015/11/07 06:00 [entrez] PHST- 2015/11/07 06:00 [pubmed] PHST- 2015/11/07 06:01 [medline] PHST- 2015/10/21 00:00 [pmc-release] AID - 1392 [pii] AID - 10.1186/s40064-015-1392-x [doi] PST - epublish SO - Springerplus. 2015 Oct 21;4:631. doi: 10.1186/s40064-015-1392-x. eCollection 2015.