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Background Albumin-bilirubin (ALBI) grade is an objective measure of liver function for patients with hepatocellular carcinoma (HCC). The tyrosine kinase inhibitor cabozantinib is approved for patients with advanced HCC who have received prior sorafenib based on the phase 3 CELESTIAL trial (NCT01908426). Cabozantinib improved overall survival (OS) and progression-free survival (PFS) versus placebo in patients with previously treated HCC. Methods Patients were randomised 2:1 to receive cabozantinib 60 mg or placebo orally every day. Clinical outcomes in patients with ALBI grade 1 or 2 at baseline were evaluated in CELESTIAL. ALBI scores were retrospectively calculated based on baseline serum albumin and total bilirubin, with an ALBI grade of 1 defined as ≤ −2.60 score and a grade of 2 as a score of > −2.60 to ≤ −1.39. Results Cabozantinib improved OS and PFS versus placebo in both ALBI grade 1 (hazard ratio [HR] [95% CI]: 0.63 [0.46–0.86] and 0.42 [0.32–0.56]) and ALBI grade 2 (HR [95% CI]: 0.84 [0.66–1.06] and 0.46 [0.37–0.58]) subgroups. Adverse events were consistent with those in the overall population. Rates of grade 3/4 adverse events associated with hepatic decompensation were generally low and were more common among patients in the ALBI grade 2 subgroup. Discussion These results provide initial support of cabozantinib in patients with advanced HCC irrespective of ALBI grade 1 or 2. Trial registration number ClinicalTrials.gov number, NCT01908426.

Albumin-bilirubin (ALBI) grade is an objective measure of liver function for patients with hepatocellular carcinoma (HCC). The tyrosine kinase inhibitor cabozantinib is approved for patients with advanced HCC who have received prior sorafenib based on the phase 3 CELESTIAL trial (NCT01908426). Cabozantinib improved overall survival (OS) and progression-free survival (PFS) versus placebo in patients with previously treated HCC.Patients were randomised 2:1 to receive cabozantinib 60 mg or placebo orally every day. Clinical outcomes in patients with ALBI grade 1 or 2 at baseline were evaluated in CELESTIAL. ALBI scores were retrospectively calculated based on baseline serum albumin and total bilirubin, with an ALBI grade of 1 defined as ≤ -2.60 score and a grade of 2 as a score of -2.60 to ≤ -1.39.Cabozantinib improved OS and PFS versus placebo in both ALBI grade 1 (hazard ratio [HR] [95% CI]: 0.63 [0.46-0.86] and 0.42 [0.32-0.56]) and ALBI grade 2 (HR [95% CI]: 0.84 [0.66-1.06] and 0.46 [0.37-0.58]) subgroups. Adverse events were consistent with those in the overall population. Rates of grade 3/4 adverse events associated with hepatic decompensation were generally low and were more common among patients in the ALBI grade 2 subgroup.These results provide initial support of cabozantinib in patients with advanced HCC irrespective of ALBI grade 1 or 2.ClinicalTrials.gov number, NCT01908426.

Purpose Cabozantinib, an inhibitor of tyrosine kinases including MET, vascular endothelial growth factor receptors, and AXL, increased progression-free survival (PFS), overall survival (OS), and objective response rate (ORR) in patients with advanced renal cell carcinoma (RCC) after previous vascular endothelial growth factor receptor–targeted therapy in the phase III METEOR trial. Because bone metastases are associated with increased morbidity in patients with RCC, bone-related outcomes were analyzed in METEOR. Patients and Methods Six hundred fifty-eight patients were randomly assigned 1:1 to receive 60 mg cabozantinib or 10 mg everolimus. Prespecified subgroup analyses of PFS, OS, and ORR were conducted in patients grouped by baseline bone metastases status per independent radiology committee (IRC). Additional end points included bone scan response per IRC, skeletal-related events, and changes in bone biomarkers. Results For patients with bone metastases at baseline (cabozantinib [n = 77]; everolimus [n = 65]), median PFS was 7.4 months for cabozantinib versus 2.7 months for everolimus (hazard ratio, 0.33 [95% CI, 0.21 to 0.51]). Median OS was also longer with cabozantinib (20.1 months v 12.1 months; hazard ratio, 0.54 [95% CI, 0.34 to 0.84]), and ORR per IRC was higher (17% v 0%). The rate of skeletal-related events was 23% with cabozantinib and 29% with everolimus, and bone scan response per IRC was 20% versus 10%, respectively. PFS, OS, and ORR were also improved with cabozantinib in patients without bone metastases. Changes in bone biomarkers were greater with cabozantinib than with everolimus. The overall safety profiles of cabozantinib and everolimus in patients with bone metastases were consistent with those observed in patients without bone metastases. Conclusion Cabozantinib treatment was associated with improved PFS, OS, and ORR when compared with everolimus treatment in patients with advanced RCC and bone metastases and represents a good treatment option for these patients.

Background ALBI grade is an objective measure of liver function for patients with HCC; higher ALBI grade is associated with worse prognosis. In the phase 3 CELESTIAL trial (NCT01908426), cabozantinib, an inhibitor of MET, VEGFR, and AXL, significantly improved overall survival (OS) and progression-free survival (PFS) vs placebo in patients with previously treated HCC and is now approved for patients with HCC who received prior sorafenib. Here, we evaluate outcomes based on ALBI grade in the CELESTIAL trial. Methods 707 patients were randomized 2:1 to cabozantinib (60 mg daily) or placebo. Eligible patients had HCC, Child-Pugh score A, and ECOG PS ≤ 1. Patients received prior sorafenib and ≤2 lines of prior systemic therapy for HCC. Baseline ALBI score was calculated from serum albumin and total bilirubin measured centrally, and was used to determine ALBI grade (Johnson, J Clin Oncol. 2015;33:550-8). Results At baseline, 186 patients (40%) were ALBI grade 1 and 282 (60%) were ALBI grade 2 in the cabozantinib arm; 182 patients (43%) were ALBI grade 1 and 133 (56%) were ALBI grade 2 in the placebo arm. Two patients in each arm were ALBI grade 3. Patients with ALBI grade 1 had better ECOG PS (61% ECOG 0 & 39% ECOG 1) vs those with ALBI grade 2 (48% ECOG 0 & 52% ECOG 1). In patients with ALBI grade 1, median OS was 17.5 months with cabozantinib vs 11.4 months with placebo (HR 0.63, 95% CI 0.46-0.86). In patients with ALBI grade 2, median OS was 8.0 months with cabozantinib vs 6.4 months with placebo (HR 0.84, 95% CI 0.66-1.06). In patients with ALBI grade 1, median PFS was 6.5 months with cabozantinib vs 1.9 months with placebo (HR 0.42, 95% CI 0.32-0.56) and in patients with ALBI grade 2, median PFS was 3.7 months with cabozantinib vs 1.9 months with placebo (HR 0.46, 95% CI 0.37-0.58). Common grade 3/4 adverse events in both groups were consistent with the overall population. Treatment related discontinuations in the cabozantinib arm were 12% and 19% for patients with ALBI grade 1 and 2. Conclusions Patients treated with cabozantinib had longer PFS and OS vs patients receiving placebo, regardless of ALBI grade. Outcomes were generally better in patients with ALBI grade 1 vs 2. Clinical trial identification NCT01908426 (Other Study ID Numbers: XL184-309). Editorial acknowledgement Suvajit Sen (Exelixis). Legal entity responsible for the study Exelixis. Funding Exelixis. Disclosure S.L. Chan: Advisory / Consultancy: Amgen. R. Miksad: Full / Part-time employment: Flatiron Health; Shareholder / Stockholder / Stock options: Flatiron Health; Research grant / Funding (institution): Exelixis, Bayer. I. Cicin: Advisory / Consultancy: AstraZeneca; Advisory / Consultancy: Boehringer Ingelheim; Advisory / Consultancy: Eli Lilly; Advisory / Consultancy: Merck Sharp & Dohme Corp; Advisory / Consultancy: F. Hoffmann-La Roche; Advisory / Consultancy: Pfizer. H.J. Klumpen: Advisory / Consultancy: IPSEN; Research grant / Funding (institution), Local PI for clinical trial from the following organizations: IPSEN Exelexis, ITM, SIRTEX, Taiho, BAYER, DAICHII, Novartis, BTG. S. Kim: Research grant / Funding (institution): Genentech, Roche, Pfizer; Advisory / Consultancy: Amgen, Bayer, Boehringer Ingelheim, MSD, Novartis, Roche, Sanofi, Servier. J. Youkstetter: Shareholder / Stockholder / Stock options, Full / Part-time employment: Exelixis. S. Sen: Full / Part-time employment, Self and spouse: Exelixis; Shareholder / Stockholder / Stock options, Self and spouse: Exelixis. A-L. Cheng: Advisory / Consultancy: Bayer Schering Pharma; Advisory / Consultancy: Bristol-Myers Squibb; Honoraria (self), Advisory / Consultancy: Eisai; Honoraria (self), Advisory / Consultancy: Merck Serono; Honoraria (self), Advisory / Consultancy: Novartis; Honoraria (self), Advisory / Consultancy: Ono Pharmaceutica; Advisory / Consultancy: Exelixis; Advisory / Consultancy: Nucleix; Honoraria (self), Advisory / Consultancy: Roche/Genentech; Honoraria (self), Advisory / Consultancy: IQVIA; Honoraria (self): Merck Sharp Dohme. A.B. El-Khoueiry: Research grant / Funding (self): AstraZeneca; Research grant / Funding (self): Astex; Advisory / Consultancy: Bayer; Advisory / Consultancy: BMS; Advisory / Consultancy: Agenus; Advisory / Consultancy: Merck; Advisory / Consultancy: EISAI; Advisory / Consultancy: Pieris; Advisory / Consultancy: EMD Serono; Advisory / Consultancy: Exelixis; Advisory / Consultancy: Roche/Genentech; Advisory / Consultancy: Apeiron. T. Meyer: Advisory / Consultancy: BMS, BAYER, EISAI, BTG, AZ, BEIGENE, TARVEDA, MSD; Research grant / Funding (institution): BTG BAYER. R.K. Kelley: Advisory / Consultancy: Agios, AstraZeneca, Bayer, BMS (funding to institution) IDMC: Genentech/Roche (funding to self); Research grant / Funding (institution): Agios, AstraZeneca, Bayer, BMS, Eli Lilly, Exelixis, EMD Serono, Medimmune, Merck, Novartis, QED, Taiho. G.K. Abou-Alfa: Research grant / Funding (self): ActaBiologica,; Advisory / Consultancy, Research grant / Funding (self): Agios,; Research grant / Funding (self): Array,; Advisory / Consultancy, Research grant / Funding (self): AstraZeneca; Advisory / Consultancy, Research grant / Funding (self): Bayer,; Advisory / Consultancy, Research grant / Funding (self): Beigene,; Advisory / Consultancy, Research grant / Funding (self): BMS,; Research grant / Funding (self): Casi,; Research grant / Funding (self): Celgene,; Research grant / Funding (self): Exelixis,; Research grant / Funding (self): Genentech,; Research grant / Funding (self): Halozyme,; Research grant / Funding (self): Incyte,; Research grant / Funding (self): Lilly,; Research grant / Funding (self): Mabvax,; Research grant / Funding (self): Novartis,; Research grant / Funding (self): OncoQuest,; Research grant / Funding (institution): Polaris Puma; Research grant / Funding (self): QED,; Research grant / Funding (self): Roche; Advisory / Consultancy: 3DMedcare,Agios, Alignmed, Amgen, Antengene, Aptus, Aslan, Astellas, AstraZeneca, Bayer, Beigene, Bioline, BMS, Boston Scientifc, Bridgebio, Carsgen, Celgene, Casi, Cipla, CytomX, Daiichi, Debio, Delcath, Eisai, Exelixis, Flatiron, Genoscience, Halozyme. All other authors have declared no conflicts of interest.

4558Background: In pts with metastatic RCC, bone mets are prognostic for poor outcomes and represent an unmet medical need. The Phase 3 METEOR trial (NCT01865747) assessed the efficacy and safety of C vs E in pts with RCC and ≥1 prior VEGFR TKI. The trial met its primary endpoint of improving progression-free survival (PFS; HR 0.58, 95% CI 0.45–0.75; P