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A phase II study of the efficacy and safety of the combination therapy of the MEK inhibitor refametinib (BAY 86-9766) plus sorafenib for Asian patients with unresectable hepatocellular carcinoma.

Authors
 Ho Yeong Lim  ;  Jeong Heo  ;  Hye Jin Choi  ;  Cheng Yao Lin  ;  Jung Hwan Yoon  ;  Chiun Hsu  ;  Kun Ming Rau  ;  Ronnie T.P. Poon  ;  Winnie Yeo  ;  Joong Won Park  ;  Miah Hiang Tay  ;  Wen Son Hsieh  ;  Christian Kappeler  ;  Prabhu Rajagopalan  ;  Heiko Krissel  ;  Michael Jeffers  ;  Chia Jui Yen  ;  Won Young Tak 
Citation
 CLINICAL CANCER RESEARCH, Vol.20(23) : 5976-5985, 2014 
Journal Title
CLINICAL CANCER RESEARCH
ISSN
 1078-0432 
Issue Date
2014
MeSH
Adult ; Aged ; Antineoplastic Combined Chemotherapy Protocols/adverse effects ; Antineoplastic Combined Chemotherapy Protocols/therapeutic use* ; Asian Continental Ancestry Group ; Biomarkers ; Carcinoma, Hepatocellular/drug therapy* ; Carcinoma, Hepatocellular/etiology ; Carcinoma, Hepatocellular/mortality ; Carcinoma, Hepatocellular/pathology* ; Diphenylamine/administration & dosage ; Diphenylamine/analogs & derivatives ; Diphenylamine/pharmacokinetics ; Female ; Humans ; Liver Neoplasms/drug therapy* ; Liver Neoplasms/etiology ; Liver Neoplasms/mortality ; Liver Neoplasms/pathology* ; Male ; Middle Aged ; Neoplasm Metastasis ; Neoplasm Staging ; Niacinamide/administration & dosage ; Niacinamide/analogs & derivatives ; Niacinamide/pharmacokinetics ; Phenylurea Compounds/administration & dosage ; Phenylurea Compounds/pharmacokinetics ; Sulfonamides/administration & dosage ; Sulfonamides/pharmacokinetics ; Treatment Outcome
Abstract
PURPOSE: There is an unmet need for treatment options in hepatocellular carcinoma (HCC). Sorafenib is currently the only approved systemic treatment for HCC. Refametinib, an oral, allosteric MEK inhibitor, has demonstrated antitumor activity in combination with sorafenib in vitro and in vivo. A phase II study evaluated efficacy and safety of refametinib plus sorafenib in Asian patients with HCC (NCT01204177). EXPERIMENTAL DESIGN: Eligible patients received twice-daily refametinib 50 mg plus twice-daily sorafenib 200 mg (morning)/400 mg (evening), with dose escalation to sorafenib 400 mg twice daily from cycle 2 if no grade ≥ 2 hand-foot skin reaction, fatigue, or gastrointestinal toxicity occurred. Primary efficacy endpoint: disease control rate. Secondary endpoints: time to progression, overall survival, pharmacokinetic assessment, biomarker analysis, safety, and tolerability. RESULTS: Of 95 enrolled patients, 70 received study treatment. Most patients had liver cirrhosis (82.9%) and hepatitis B viral infection (75.7%). Disease control rate was 44.8% (primary efficacy analysis; n = 58). Median time to progression was 122 days, median overall survival was 290 days (n = 70). Best clinical responders had RAS mutations; majority of poor responders had wild-type RAS. Most frequent drug-related adverse events were diarrhea, rash, aspartate aminotransferase elevation, vomiting, and nausea. Dose modifications due to adverse events were necessary in almost all patients. CONCLUSIONS: Refametinib plus sorafenib showed antitumor activity in patients with HCC and was tolerated at reduced doses by most patients. Frequent dose modifications due to grade 3 adverse events may have contributed to limited treatment effect. Patients with RAS mutations appear to benefit from refametinib/sorafenib combination.
Full Text
http://clincancerres.aacrjournals.org/content/20/23/5976
DOI
10.1158/1078-0432.CCR-13-3445
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
Choi, Hye Jin(최혜진) ORCID logo https://orcid.org/0000-0001-5917-1400
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/138448
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