Study of Pegylated Human Recombinant Arginase for Liver Cancer

Overview[ - collapse ][ - ]

Purpose 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).
ConditionNeoplasm
Hepatocellular Carcinoma
InterventionBiological: Pegylated Recombinant Human Arginase I
Drug: Doxorubicin
PhasePhase 1
SponsorBio-Cancer Treatment International Limited
Responsible PartyBio-Cancer Treatment International Limited
ClinicalTrials.gov IdentifierNCT00988195
First ReceivedSeptember 30, 2009
Last UpdatedMarch 13, 2012
Last verifiedMarch 2012

Tracking Information[ + expand ][ + ]

First Received DateSeptember 30, 2009
Last Updated DateMarch 13, 2012
Start DateMay 2008
Estimated Primary Completion DateAugust 2009
Current Primary Outcome MeasuresPlasma 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] [Designated as safety issue: No]
Current Secondary Outcome MeasuresOverall Survival, Time to Progression [Time Frame: 24 weeks] [Designated as safety issue: No]

Descriptive Information[ + expand ][ + ]

Brief TitleStudy of Pegylated Human Recombinant Arginase for Liver Cancer
Official TitleRecombinant Human Arginase I (rhArgI) for Patients With Advanced Hepatocellular Carcinoma (HCC): An Adaptive Design Dose Escalation Trial With Addition of Standard Doxorubicin Treatment
Brief Summary
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).
Detailed Description
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
Study TypeInterventional
Study PhasePhase 1
Study DesignEndpoint Classification: Safety/Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment
Condition
  • Neoplasm
  • Hepatocellular Carcinoma
InterventionBiological: Pegylated Recombinant Human Arginase I
Week 1 (Single Dose); Weeks 3 - 11 (Weekly Dose x 8 weeks)in 8 escalation doses
Other Names:
PEG-BCT-100Drug: Doxorubicin
Weeks 13-24 (once every 3 weeks)
Other Names:
Adriamycin
Study Arm (s)Experimental: PEG-BCT-100
Pegylated Recombinant Human Arginase I

Recruitment Information[ + expand ][ + ]

Recruitment StatusCompleted
Estimated Enrollment15
Estimated Completion DateAugust 2009
Estimated Primary Completion DateAugust 2009
Eligibility Criteria
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.
GenderBoth
Ages18 Years
Accepts Healthy VolunteersNo
ContactsNot Provided
Location CountriesHong Kong

Administrative Information[ + expand ][ + ]

NCT Number NCT00988195
Other Study ID NumbersHKCTR-503
Has Data Monitoring CommitteeYes
Information Provided ByBio-Cancer Treatment International Limited
Study SponsorBio-Cancer Treatment International Limited
CollaboratorsThe University of Hong Kong
Chinese University of Hong Kong
Investigators Principal Investigator: Ronnie TP Poon, Prof Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The University of Hong Kong
Verification DateMarch 2012

Locations[ + expand ][ + ]

Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The University of Hong Kong
Hong Kong, Hong Kong