Inclusion Criteria

Inclusion criteria:

- Histologically confirmed diagnosis of hepatocellular cancer (HCC) not amenable to
local therapy

- Age 18 years or older

- Eastern Cooperative Oncology Group performance score of 2 or less

- at least one untreated measurable lesion according to Response Evaluation Criteria In
Solid Tumors (RECIST); lesion previously treated by local therapy - radiofrequency
ablation, percutaneous ethanol injection, radiotherapy, transarterial
chemoembolization - must have documented progression according to Response Evaluation
Criteria In Solid Tumors (RECIST) by computed tomography (CT) or magnetic resonance
imaging (MRI) (this criterion is limited to phase II only and, patients with
non-measurable tumors are allowed in phase I)

- Time interval from last local therapy (radiofrequency ablation, percutaneous ethanol
injection, radiotherapy, transarterial chemoembolization) more than 4 weeks prior to
registration

- Written informed consent consistent with International Conference on Harmonisation/
Good Clinical Practice (ICH-GCP) and local legislation

Exclusion criteria:

- Fibrolamellar hepatocellular cancer (HCC)

- Uncontrolled or refractory ascites

- Barcelona Clinic Liver Cancer (BCLC) stage D

- Hepatic encephalopathy grade II or higher

- Prothrombin time international normalized ratio greater than 2.3, or prothrombin time
more than 6 seconds prolonged than control

- Absolute neutrophil count less than 1000 /mL

- Platelet count less than 60000 /mL

- Hemoglobin less than 9 g/dL

- Serum creatinine greater than 1.5 times Upper Limit of Normal (ULN)

- Proteinuria of Common Terminology Criteria for Adverse Events (CTCAE) grade 2 or
greater

- Variceal bleeding within last 3 months prior to registration

- History of major thrombotic (except portal vein thrombosis) or clinically relevant
major bleeding event in the past 6 months

- Known inherited predisposition to bleeding or thrombosis

- Significant cardiovascular diseases (i.e. hypertension not controlled by medical
therapy, blood pressure > 150/90 mmHg), unstable angina, history of myocardial
infarction within the past 6 months, congestive heart failure > class II according to
New York Heart Association (NYHA), serious cardiac arrhythmia, pericardial effusion)

- Therapeutic anticoagulation (except low dose heparin and/or heparin flush as needed
for maintenance of an indwelling intravenous device) or antiplatelet therapy (except
for chronic low-dose therapy with acetylsalicylic acid =< 325mg per day)

- Major surgery within 4 weeks prior to registration

- Treatment with other investigational drugs or participation in another clinical trial
within the past four weeks before start of therapy or concomitantly with this trial
(except for present trial drug)

- Serious illness or concomitant non-oncological disease such as neurologic,
psychiatric, infectious disease or active ulcers (gastro-intestinal tract, skin) or
laboratory abnormality that may increase the risk associated with study participation
or study drug administration and in the judgment of the investigator would make the
patient inappropriate for entry into the study

- Patients who are sexually active and unwilling to use a medically acceptable method
of contraception (e.g. such as implants, injectables, combined oral contraceptives,
some intrauterine devices or vasectomized partner for participating females, condoms
for participating males) during the trial and for at least twelve months after end of
active therapy

- Current alcohol abuse or drug abuse that would limit pt ability to comply with
protocol

- Symptomatic central nervous system (CNS) metastasis

- Life expectancy less than 12 weeks

- Patient unable to take oral medication