HepaSphere/Quadrasphere Microspheres for Delivery of Doxorubicin for the Treatment of Hepatocellular Cancer

Study Overview
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Brief Summary
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The purpose of this study is to evaluate overall survival in patients diagnosed with hepatocellular cancer (HCC) treated with HepaSphere/QuadraSphere Microspheres loaded with chemotherapeutic agent doxorubicin compared to conventional transarterial chemoembolization with particle PVA, lipiodol, and doxorubicin.

Detailed Description
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This phase three, interventional, and prospective study consists of a patient population that has advanced liver cancer (hepatocellular cancer [HCC]) that cannot be removed by standard therapies such as surgical removal, liver transplant, and/or ablation. Embolics and drug eluting embolics are being used by interventional radiologists to try and shrink or kill the tumor area. Patients that met eligibility criteria, wanted to participate in the study, and signed the informed consent form (ICF) made up the study subject population. Subjects were randomized on a 1:1 basis (subjects were blinded to arm they were randomized to). Post randomization and within four weeks of the first chemoembolization procedure all subjects had a baseline MRI. Following, the first chemoembolization procedure (hqTACE or cTACE) or 'cycle' was completed. Subjects can (per protocol) receive up to 3 TACE cycles. Within 4 weeks after any TACE cycle, an MRI and labs should be conducted/collected to evaluate disease status (reduction vs progression) and measure treated lesions. Any residual disease that is present after after the first TACE will undergo the next TACE cycle (maximum of three). However, if the liver MRI shows a complete response (absence of HCC) then no additional TACE procedures are performed and the subject is followed for survival.

Official Title
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Phase 3 Prospective, Randomized, Blinded, and Controlled Investigation of HepaSphere/QuadraSphere Microspheres for Delivery of Doxorubicin for the Treatment of Hepatocellular Carcinoma

Conditions
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Hepatocellular Carcinoma

Intervention / Treatment
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* Device: HepaSphere/QuadraSphere Microspheres
* Procedure: PVA, lipiodol, doxorubicin


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Patients must meet all of the following inclusion criteria in order to be entered into the study: Age 18 or older Patient has signed informed consent Patient must have a diagnosis of hepatocellular cancer confirmed by at least one of the following: i. Histological confirmation ii. Magnetic resonance imaging (MRI) result with early enhancement and delayed enhancement washout of at least one solid liver lesion > 1 cm. Patient must also have evidence of cirrhosis or have chronic hepatitis B. iii. Contrast enhanced computed tomography (CT) with early enhancement and delayed enhancement washout of at least one solid liver lesion > 1cm. Patient must also have evidence of cirrhosis or have chronic hepatitis B. d. Patient must not be suitable for treatment by resection or percutaneous ablation at time of study entry. Patients not suitable for ablation due to lesion location may be enrolled e. Patient MUST meet at least ONE of the following criteria: i. Stage Child-Pugh B 7 ii. Recurrent HCC iii.Performance status ECOG 1 f. Patient has a life expectancy of at least 6 months g. Absence of occlusive thrombus to the main portal trunk Exclusion Criteria: If patients meet any of the following criteria they may not be entered into the study: Current or previous treatment with chemo- or radiation therapy or sorafenib Previous treatment with any form of transarterial embolization for HCC Patients with current or history of any other cancer except non-melanomatous skin cancer Female patients who are pregnant, breastfeeding, or premenopausal and not using an effective method of contraceptive Performance status ECOG > 2 Child-Pugh scores >7 Active gastrointestinal bleeding Evidence of uncorrectable bleeding diathesis Extra-hepatic spread of the HCC Total Bilirubin > 3 mg/dL >50% tumor involvement of the liver Infiltrative or diffuse HCC Encephalopathy not adequately controlled medically Presence of ascites not controlled medically Presence of medically relevant localized or systemic infection, other than hepatitis B, C, D, E or G Any contraindication for MRI (eg. metallic implants) Allergy to contrast media that cannot be managed with prophylaxis Allergy to iodized oil Any contraindication to arteriography Any contraindication for doxorubicin administration, including the following: i. White Blood Cell count (WBC) <3000 cells/mm₃ ii. Absolute Neutrophil <1500 cells/mm₃ iii. Cardiac ejection fraction <50% iv. Other condition deemed exclusionary by physician u. Any contraindication for hepatic embolization, including the following: i. Porto-systemic shunt, or an arteriovenous shunt that cannot be adequately closed prior to chemoembolization ii. Hepatofugal blood flow iii. Serum creatinine > 2mg/dL iv. Uncorrectable impaired clotting Platelet <50,000/mm₃ International Normalized Ratio (INR) > 1.4 Activated Prothrombin Time (aPTT) less than 21 or greater than 40 v. AST > 5X upper limit of normal for lab vi. ALT > 5X upper limit of normal for lab

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Interventional Model Description: Participants are randomized 1:1 to receive either 1. A Conventional TACE (Trans Arterial Chemoembolization) procedure using PVA, lipiodol and doxorubicin (cTACE), or 2. HepaSphere/QuadraSphere Microspheres loaded with doxorubicin for Trans Arterial Chemoembolization (hqTACE). Participants in both treatment arms will be followed for overall survival, the primary study endpoint.
Masking: Double


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: HepaSphere/QuadraSphere TACE<br>HepaSphere/QuadraSphere TACE | Device: HepaSphere/QuadraSphere Microspheres<br>* HepaSphere/QuadraSphere Microspheres loaded with doxorubicin<br>|
| Active Comparator: Conventional TACE<br>Conventional TACE | Procedure: PVA, lipiodol, doxorubicin<br>* Conventional TACE procedure using PVA, lipiodol and doxorubicin<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Median Overall Survival | Median overall survival will be calculated using the Intent-to-Treat (ITT) population in each treatment arm when the last subject has completed two years of follow up after their first study TACE procedure. Per protocol, study subjects were followed for survival until death or deemed lost to follow up. All deaths are reported within safety. | 2 years | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Objective Response Rates (ORR) | The Objective Response Rate will be calculated for the ITT population by adding the number of participants that were determined to have complete or partial response (utilizing mRECIST criteria) and dividing by the number of ITT participants. | Study was terminated early so analysis of additional outcome(s) were not possible. | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Doxorubicin, Hepatocellular carcinoma, TACE, HepaSphere Microspheres, QuadraSphere Microspheres