Study of Pegylated Human Recombinant Arginase for Liver Cancer

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00988195
Recruitment Status : Completed
First Posted : October 2, 2009
Last Update Posted : March 14, 2012
The University of Hong Kong
Chinese University of Hong Kong
Information provided by (Responsible Party):
Bio-Cancer Treatment International Limited

September 30, 2009
October 2, 2009
March 14, 2012
May 2008
August 2009   (Final data collection date for primary outcome measure)
Plasma arginase and arginine levels,as well as tumour response, i.e. an effect on growth in the milieu of arginine depletion. [ Time Frame: 24 weeks ]
Same as current
Complete list of historical versions of study NCT00988195 on Archive Site
Overall Survival, Time to Progression [ Time Frame: 24 weeks ]
Same as current
Not Provided
Not Provided
Study of Pegylated Human Recombinant Arginase for Liver Cancer
Recombinant Human Arginase I (rhArgI) for Patients With Advanced Hepatocellular Carcinoma (HCC): An Adaptive Design Dose Escalation Trial With Addition of Standard Doxorubicin Treatment
The purpose of this study is to determine whether recombinant human arginase (PEG-BCT-100) is safe and effective in the treatment of advanced hepatocellular carcinoma (HCC).

The primary objectives of this study are:

  • To establish a safe dose level for weekly intravenous administration of PEG- BCT-100 (rhArgIpeg5000) based on clinical and laboratory safety assessments following a range of doses (from 500 to >5000 U/kg).
  • To define the optimal biological dose (OBD) of PEG-BCT-100 based on the pharmacodynamics (PD) of arginine depletion (ADD) relative to plasma PK of PEG- BCT-100.
  • To evaluate any objective tumor responses to PEG-BCT-100 in HCC patients receiving weekly doses of PEG-BCT-100 alone and in combination with standard doses of doxorubicin

Secondary objectives of this study are:

  • To define any toxicities associated with the metabolic and cellular alterations of ADD relative to dose and PK of PEG-BCT-100 (rhArgIpeg5000).
  • To develop a safe and biologically active dose and schedule for PEG-BCT-100 treatment in phase 2 trials, either as monotherapy or in combination with best standard of care chemotherapy.
  • To confirm the safety and initial anti-tumor activity of the preferred dose and regimen of PEG-BCT-100 in 18 additional patients with advanced HCC
Phase 1
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
  • Neoplasm
  • Hepatocellular Carcinoma
  • Biological: Pegylated Recombinant Human Arginase I
    Week 1 (Single Dose); Weeks 3 - 11 (Weekly Dose x 8 weeks)in 8 escalation doses
    Other Name: PEG-BCT-100
  • Drug: Doxorubicin
    Weeks 13-24 (once every 3 weeks)
    Other Name: Adriamycin
Experimental: PEG-BCT-100
Pegylated Recombinant Human Arginase I
  • Biological: Pegylated Recombinant Human Arginase I
  • Drug: Doxorubicin
Not Provided

*   Includes publications given by the data provider as well as publications identified by Identifier (NCT Number) in Medline.
August 2009
August 2009   (Final data collection date for primary outcome measure)

Inclusion Criteria:

  • Confirmed diagnosis of HCC according to the European Association for the Study of the Liver criteria
  • Known underlying HCC etiology specified by hepatitis B, hepatitis C, post alcoholic cirrhosis, or other
  • HCC lesion(s) which are not resectable and which are measurable by C-T scan
  • Progression of or non-response of HCC lesions after treatments which are considered best standard of care - surgical resection, radiofrequency ablation, chemoembolization
  • No cancer treatment or surgery within the prior 4 weeks, either chemotherapy, targeted biologic or enzymes, either approved or investigational;
  • Males or females from 18 to 75 years-old, inclusive;
  • Ability and willingness to provide written informed consent;
  • Karnofsky performance status of 80% or above and expected survival of more than 12 weeks; and,
  • Negative urine pregnancy test, if female, and willingness to use an effective method of contraception during the entire study period

Exclusion Criteria:

  • Advancing liver failure indicated by uncontrolled ascites, pleural effusions, encephalopathy, or a Child-Pugh score of C
  • Significant hepatic, renal or bone marrow dysfunction indicated by total bilirubin >40 µmol/L, evidence of bile duct obstruction, serum albumin <30 g/L, serum SGOT >5 x upper limit of normal, ANC <1.0 x 10^9/L, platelets <100 x 10^9/L, or INR >2.0
  • Significant cardiac or pulmonary disease defined by New York Heart Association (NYHA) Class III or IV, VEF <50% by echo or MUGA, or a history of myocardial infarction within the past 6 months, significant unstable arrhythmia or evidence of ischemia on ECG
  • Pregnant or nursing women. NOTE: Women of child-bearing potential and men must agree to use adequate contraception (hormonal or barrier method of birth control or abstinence) prior to study entry and for the duration of study participation. Should a woman become pregnant or suspect she is pregnant while participating in this study, she should inform her treating physician immediately.
  • Significant active infection including HIV requiring oral or parenteral anti-infective therapies;
  • Use of investigational drug(s) within 4 weeks of enrollment; or,
  • Prior treatment with arginine depleting agent.
Sexes Eligible for Study: All
18 Years to 75 Years   (Adult, Senior)
Contact information is only displayed when the study is recruiting subjects
Hong Kong
PR/CT205/07 ( Other Identifier: Department of Health, HKSAR )
Not Provided
Not Provided
Bio-Cancer Treatment International Limited
Bio-Cancer Treatment International Limited
  • The University of Hong Kong
  • Chinese University of Hong Kong
Principal Investigator: Ronnie TP Poon, Prof Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The University of Hong Kong
Bio-Cancer Treatment International Limited
March 2012

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP