Zanzalintinib in Second Line and Beyond for the Treatment of Advanced Liver Cancer

Inclusion Criteria

• •Patients with confirmed diagnosed hepatocellular carcinoma (HCC) who are not amendable to curative treatments
• •Patients must have documented objective radiographic progression during or after treatment with any first or second line therapy, or intolerance to any first or second line therapy, which include immunotherapy-based combination, or non-immunotherapy-based treatment, except cabozantinib
• •Patients must have a Child-Pugh class A or Child-Pugh class B (B7 or B8) score for cirrhosis mortality. Child-Pugh class B, B9 is excluded
• •Patients must have measurable disease according to Response Evaluation Criteria in Solid Tumors (RECIST) version (v)1.1
• •Patients may have had up to two prior lines therapy (not including cabozantinib) in the advanced metastatic setting. Palliative radiation or locoregional therapies are not considered a line of therapy
• •Patients must be age ≥ 18 years
• •Patients must exhibit a/an Eastern Cooperative Oncology Group (ECOG) Status of 0-1 (Karnofsky ≥ 60%)
• •CHILD-PUGH CLASS A: Absolute neutrophil count (ANC) ≥ 1,500/mcL without granulocyte colony-stimulating factor support within 2 weeks of screening laboratory sample collection
• •CHILD-PUGH CLASS B: Absolute neutrophil count (ANC) ≥ 1,200/mcL without granulocyte colony-stimulating factor support within 2 weeks of screening laboratory sample collection
• •CHILD-PUGH CLASS A: Hemoglobin (Hgb) ≥ 9 g/dL without transfusion within 2 weeks of screening laboratory sample collection
• •CHILD-PUGH CLASS B: Hemoglobin (Hgb) ≥ 8.5 g/dL without transfusion within 2 weeks of screening laboratory sample collection
• •CHILD-PUGH CLASS A: Platelets (PLT) ≥ 75,000/mcL without transfusion within 2 weeks of screening laboratory sample collection
• •CHILD-PUGH CLASS B: Platelets (PLT) ≥ 60,000/mcL without transfusion within 2 weeks of screening laboratory sample collection
• •CHILD-PUGH CLASS A: International normalized ratio (INR) ≤ 1.7 x upper limit of normal (ULN)
• •CHILD-PUGH CLASS B: International normalized ratio (INR) ≤ 2.3 x upper limit of normal (ULN)
• •CHILD-PUGH CLASS A: Activated partial thromboplastin time (aPTT) ≤ 1.2 x upper limit of normal (ULN)
• •CHILD-PUGH CLASS B: Activated partial thromboplastin time (aPTT) ≤ 1.2 x upper limit of normal (ULN)
• •CHILD-PUGH CLASS A: Total bilirubin ≤ 3.0 mg/dl (For subjects with Gilbert's disease ≤ 3 x ULN)
• •CHILD-PUGH CLASS B: Total bilirubin ≤ 3.0 mg/dl (For subjects with Gilbert's disease ≤ 3 x ULN)
• •CHILD-PUGH CLASS A: Albumin ≥ 2.5 (g/dL)
• •CHILD-PUGH CLASS B: Albumin ≥ 2.5 (g/dL)
• •CHILD-PUGH CLASS A: Aspartate aminotransferase (AST) (serum glutamic oxaloacetic transaminase \[SGOT\]) ≤ 5 x institutional ULN (specify modifications for liver metastases, as applicable)
• •CHILD-PUGH CLASS B: AST (SGOT) ≤ 5 x institutional ULN (specify modifications for liver metastases, as applicable)
• •CHILD-PUGH CLASS A: Alanine aminotransferase (ALT) (serum glutamic pyruvic transaminase \[SGPT\]) ≤ 5 x institutional ULN (specify modifications for liver metastases, as applicable)
• •CHILD-PUGH CLASS B: ALT (SGPT) ≤ 5 x institutional ULN (specify modifications for liver metastases, as applicable)
• •CHILD-PUGH CLASS A: Alkaline phosphatase (ALP) ≤ 5.0 x institutional ULN
• •CHILD-PUGH CLASS B: ALP ≤ 5.0 x institutional ULN
• •CHILD-PUGH CLASS A: Creatinine clearance \> 40 mL/ minute if serum creatinine is elevated above 1.5 x ULN
• •CHILD-PUGH CLASS B: Creatinine clearance \> 40 mL/ minute if serum creatinine is elevated above 1.5 x ULN
• •CHILD-PUGH CLASS A: Urine protein-to-creatinine ratio (UPCR) ≤ 1.5 mg/mg (≤ 169.8 mg/mmol) creatinine
• •CHILD-PUGH CLASS B: Urine protein-to-creatinine ratio (UPCR) ≤ 1.5 mg/mg (≤ 169.8 mg/mmol) creatinine
• •Patients of child-bearing potential (POCBP) and any of their partners with sperm-producing reproductive capability must agree to use a highly effective method of contraception throughout the course of the study and for 186 days after the last dose of treatment. Additional contraceptive method, such as a barrier method (e.g., condom) is also required
• •Patients with sperm-producing reproductive capacity (PWSPRC) treated or enrolled on this protocol must agree to use adequate contraception (hormonal or barrier method of birth control; abstinence) with partners of childbearing potential from time of informed consent, for the duration of study participation, and for 96 days following completion of therapy
• •POCBP must agree to use a highly effective method of contraception throughout the course of the study and for 186 days after the last dose of treatment. Additional contraceptive method, such as a barrier method (e.g., condom) is also required
• •Patients must have the ability to understand and the willingness to sign a written informed consent document and comply with the study requirements
• •Patients must have the ability to swallow, retain, and absorb oral medications or ingest a suspension either orally or by a nasogastric (NG) or gastrostomy (PEG) tube
• •* Patients with grade ≥ 2 neuropathy will be evaluated on a case-by-case basis after consultation with the treating physician
• •* Patients with irreversible toxicity not reasonably expected to be exacerbated by treatment with zanzalintinib may be included only after consultation with the principal investigator
• •Patients with a known prior or concurrent malignancy that is progressing or requires active treatment within 2 years of first dose of study treatment
• •* Note: The following exceptions may be made:
• •* For patients with malignancies like basal cell carcinoma of the skin or squamous cell carcinoma of the skin that has undergone potentially curative therapy or in situ cervical cancer; or superficial skin cancers, localized low-grade tumors deemed cured and not treated with systemic therapy, and incidentally diagnosed prostate cancer if assessed as stage ≤ T2N0M0 and Gleason score ≤ 6
• •* For patients with a prior or concurrent malignancy whose natural history or treatment does not have the potential to interfere with the safety or efficacy assessment of the investigational regimen
• •Patients with known brain metastases or cranial epidural disease unless adequately treated with radiotherapy and/or surgery (including radiosurgery) and stable for at least 28 days prior to first dose of study treatment
• •* Note: Patients with an incidental finding of an isolated brain lesion \< 1 cm in diameter may be eligible after principal investigator approval if the lesion is radiographically stable for 28 days before first dose and does not require treatment per Investigator judgement
• •* Note: Eligible patients must be neurologically asymptomatic and without corticosteroid treatment at the time of first dose of study treatment
• •* Note: Base of skull lesions without definitive evidence of dural or brain parenchymal involvement are allowed
• •Patients who have a history of allergic reactions attributed to compounds of similar chemical or biologic composition to zanzalintinib
• •Patients who are on concomitant anticoagulation therapy with oral anticoagulants (e.g., warfarin or direct thrombin inhibitors) and platelet inhibitors (e.g., clopidogrel)
• •* Allowed anticoagulants are the following:
• •* Prophylactic use of low-dose aspirin for cardio-protection (per local applicable guidelines) and low-dose low molecular weight heparins (LMWH)
• •* Therapeutic doses of LMWH or anticoagulation with direct factor Xa inhibitors rivaroxaban, edoxaban, or apixaban in patients without known brain metastases who are on a stable dose of the anticoagulant for at least 1 week before first dose of study treatment without clinically significant hemorrhagic complications from the anticoagulation regimen
• •* Note: Patients must have discontinued oral anticoagulants within 3 days or 5 half-lives prior to first dose of study treatment, whichever is longer
• •Patients who are taking any complementary medications (e.g., herbal supplements or traditional Chinese medicines) to treat the disease under study within 2 weeks prior to cycle 1 day 1
• •* Note: Taking complementary medications to treat symptoms of the cancer is allowed
• •Patient has uncontrolled, significant intercurrent or recent illness including, but not limited to, the following conditions:
• •* Deteriorating Cardiovascular disorders:
• •* Congestive heart failure (CHF) New York Heart Association class 3 or 4, class 2 or higher unstable angina pectoris, new-onset angina, serious cardiac arrhythmias (e.g., ventricular flutter, ventricular fibrillation, Torsades de pointes)
• •* Ejection fraction \< 50% on screening echocardiogram (ECHO) or multigated acquisition scan (MUGA)
• •* Uncontrolled hypertension defined as sustained blood pressure (BP) \> 150 mm Hg systolic of \> 90 mm Hg diastolic despite optimal antihypertensive treatment
• •* Stroke (including transient ischemic attack \[TIA\]), myocardial infarction, or other clinically significant ischemic events within 6 months prior to first dose of study treatment
• •* Pulmonary embolism (PE) or deep vein thrombosis (DVT) or prior clinically significant venous or non-CVA/TIA arterial thromboembolic events within 3 months before to first dose of study treatment
• •* Note: Patients with a diagnosis of DVT within 6 months are allowed if asymptomatic and stable at screening and are on a stable dose of the anticoagulant for at least 1 week before first dose of study treatment without clinically significant hemorrhagic complications from the anticoagulation regimen
• •* Note: Patients who don't require prior anticoagulation therapy may be eligible but must be discussed and approved by the principal investigator
• •* Prior history of myocarditis
• •* Gastrointestinal (GI) disorders including those associated with a high risk of perforation or fistula formation:
• •* Tumors invading the GI tract from external viscera
• •* Active peptic ulcer disease, inflammatory bowel disease, diverticulitis, cholecystitis, symptomatic cholangitis or appendicitis, or acute pancreatitis
• •* Abdominal fistula, gastrointestinal perforation, bowel obstruction, or intra-abdominal abscess must be confirmed prior to first dose of study treatment
• •* Note: Complete healing of an intra-abdominal abscess must be confirmed before first dose of study treatment
• •* Known gastric or esophageal varices
• •* Acute obstruction of the bowel, gastric outlet, or pancreatic or biliary duct within 6 months unless cause of obstruction is definitively managed and patient is asymptomatic
• •Patients with clinically significant hematuria, hematemesis, or hemoptysis of \> 0.5 teaspoon (2.5 mL) of red blood, or other history of significant bleeding (e.g., pulmonary hemorrhage) within 84 days prior to registration
• •Patients with symptomatic cavitating pulmonary lesion(s) or endobronchial disease (asymptomatic or radiated lesions allowed)
• •Patients with lesions invading major blood vessel including but not limited to inferior vena cava, pulmonary artery, or aorta
• •* Note: Patients with intravascular tumor extension (e.g., tumor thrombus in renal vein or inferior vena cava) may be eligible following principal investigator (PI) approval. Patients with lesions invading the hepatic portal vasculature are eligible
• •Patients with other clinically significant disorders that would preclude safe study participation, including, but not limited to:
• •* Active infection requiring systemic treatment
• •* Note: This criterion applies only at enrollment; if a patient develops an infection while on study treatment, they may continue to receive study treatment
• •* Note: prophylactic antibiotic treatment is allowed
• •* Known infection with acute hepatitis B virus (HBV)
• •* Note: Subjects with active hepatitis B virus (HBV) infection (defined by hepatitis B virus surface antigen \[HBsAg\] positive) must be on standard of care antiviral therapy and have HBV deoxyribonucleic acid (DNA) \< 500 IU/mL. Please note this lab is not a requirement for eligibility, however if it has been completed previously as part of the patient's health care, it should be documented for eligibility
• •* Patients with active, uncontrolled hepatitis C virus infection are eligible provided liver function meets eligibility criteria and are receiving management of the disease per local institutional practice
• •* Note: antiviral treatment for hepatitis C virus (HCV) is allowed with PI approval
• •* Known human immunodeficiency virus (HIV), or acquired immunodeficiency syndrome (AIDS)-related illness
• •* Note: except for patients meeting all of the following criteria:
• •* On stable anti-retroviral therapy
• •* CD4+ T cell count ≥ 200/uL
• •* An undetectable viral load
• •* Note: To be eligible, participants taking cytochrome P450 (CYP) inhibitors (eg, zidovudine, ritonavir, cobicistat, didanosine) or CYP3 inducers (efavirenz) must change to a different regimen not including these drugs 7 days prior to initiation of study treatment. Anti-retroviral therapies (ART) must have been received for at least 28 days prior to the first dose
• •* Note: CD4+ T cell counts, and viral load are monitored per standard of care by the local health care provider
• •* Serious non-healing wound/ulcer/bone fracture
• •* Note: non-healing wounds or ulcers are permitted if they are due to tumor-associated skin lesions
• •* Malabsorption syndrome
• •* Pharmacologically uncompensated, symptomatic hypothyroidism
• •* Severe hepatic impairment (Child-Pugh C)
• •* Requirement for hemodialysis or peritoneal dialysis
• •* History of solid organ or allogeneic stem cell transplant
• •Patients with Recent surgery within the following parameters:
• •* Major surgery (e.g., GI surgery or removal/biopsy of brain metastasis) within 8 weeks before first dose of study treatment
• •* Prior laparoscopic surgeries (i.e. nephrectomy) within 28 days prior to first dose of study treatment. Minor surgery (e.g., simple excision, tooth extraction) within 5 days before first dose of study treatment
• •* Complete wound healing from major surgery and from minor surgery (e.g., simple excision, tooth extraction) must have occurred at least prior to first dose of study treatment