Study Comparing BGB-B2033 With Sorafenib or Lenvatinib in Relapsed Hepatocellular Carcinoma

Participants are randomized to receive BGB-B2033 until disease progression, unacceptable toxicity, withdrawal of consent, death, or the end of the study, whichever occurs first.

Administered intravenously

Participants are randomized to receive either lenvatinib or sorafenib, selected by the investigator before treatment, until disease progression, unacceptable toxicity, withdrawal of consent, death, or the end of the study, whichever occurs first.

Administered by mouth as an oral capsule once daily

• Lenvima

Administered by mouth as an oral tablet twice daily

• Nexavar

OS is defined as the time from randomization to the date of death from any cause.

Defined as the percentage of participants who achieved complete response (CR) or partial response (PR) by investigator assessment and Blinded Independent Central Review (BICR) with confirmation per Response Evaluation Criteria in Solid Tumors (RECIST) v1.1.

DOR is defined as the time from the date that a confirmed response (CR or PR) was first observed to the date of first documented disease progression or death, whichever occurred first. Assessed by BIRC and investigator with confirmation per RECIST v1.1.

PFS is defined as time from start of treatment to the first documentation of disease progression or death, whichever occurs first as determined by investigator assessment and BIRC with confirmation per RECIST v1.1

Safety will be assessed by monitoring and recording of all adverse events (AEs) graded by National Cancer Institute-Common Terminology Criteria for Adverse Events (NCI-CTCAE) v6.0.

The EORTC QLQ-HCC18 measures health related quality of life outcomes in participants with liver cancer. The 18-item questionnaire is conceptualized as consisting of 6 symptom domains, 2 single items and an Index score: fatigue (3 items), body image (2 items), jaundice (2 items), nutrition (5 items), pain (2 items), fever (2 items), abdominal swelling (1 item), and sex life (1 item). The Index score is a composite of all 18 items. The items are scored using a verbal-descriptive scale rated from 1 to 4 (1 = "not at all"; 4 = "very much"). Higher scores indicate worse symptoms.

The EORTC QLQ-F17 is a generic core questionnaire that assesses self-reported functioning and GHS in participants with cancer. The EORTC QLQ-F17 includes predefined key participant reported outcomes (PRO) endpoints to measure GHS and physical functioning and role functioning. The functional items are scored on a 4-point verbal-descriptive scale (1 = "not at all"; 4 = "very much"), while the 2 GHS items use a 7-point scale (1 = "very poor"; 7 = "excellent"). Higher scores in GHS and functioning scales indicate better health related quality outcomes.

Time to deterioration in fatigue, as measured by the fatigue domain of the EORTC QLQ-HCC18 questionnaire. The fatigue domain consists of 3 items scored from 1 ("not at all") to 4 ("very much"). Higher scores indicate worse fatigue. Time to deterioration is defined as the time from randomization to the first clinically meaningful worsening in the fatigue score from baseline, based on the prespecified scoring criteria.

Time to deterioration in global health status, physical functioning, and role functioning, as measured by the EORTC QLQ-F17 questionnaire. The questionnaire assesses participants' self-reported overall health, physical functioning, and ability to perform daily activities and roles. Higher scores indicate better health-related quality of life. Time to deterioration is defined as the time from randomization to the first clinically meaningful worsening from baseline in global health status, physical functioning, or role functioning, based on prespecified scoring criteria.