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Phase 1 trial of vorolanib (CM082) in combination with everolimus in patients with advanced clear-cell renal cell carcinoma.

ABSTRACT: BACKGROUND:Vorolanib (X-82, CM082) is a multi-target tyrosine kinase inhibitor. This study aimed to evaluate the tolerability, safety, pharmacokinetics and antitumor activities of vorolanib plus everolimus (an inhibitor of mammalian target of rapamycin). METHODS:Patients had histologically or cytologically confirmed advanced RCC and failed with standard therapy were eligible for this study. Dose-escalated combinations of vorolanib (100, 150 or 200 mg once daily) with everolimus (5 mg once daily) were administered on 28-day cycles until disease progression or unacceptable toxicity using a conventional 3 + 3 dose-escalation design. FINDINGS:22 patients (100 mg n = 4, 150 mg n = 3, 200 mg n = 15) were enrolled. Only one patient experienced dose-limiting toxicity (DLT, grade 4 thrombocytopenia) in the vorolanib 200 mg combination cohort, and the maximum tolerated dose (MTD) was not reached. The most common treatment-related adverse events were proteinuria (100%), leukopenia (77%), hypercholesterolaemia (77%), increased low-density lipoprotein (68%), hypertriglyceridaemia (64%), hyperglycaemia (59%), and fatigue (55%). Most treatment-related adverse events were grade 1 to 2, with grade 3 or higher toxicities mostly seen in the 200 mg cohort. Single dosing of vorolanib demonstrated dose-proportional increases in the Cmax and AUC, and observed short t1/2z ranging from 4.74±1.44 to 12.89±7.49 h. The pharmacokinetic parameters for everolimus were similar among all cohorts. Of 19 evaluable patients, the ORR and DCR was 32% (n = 6, 95% CI, 13-57%) and 100% (95% CI, 82-100%), respectively. INTERPRETATION:Combination therapy of vorolanib 200 mg plus everolimus 5 mg once daily is potentially effective with potential activity. Further evaluation of the combination in advanced RCC patients is ongoing (NCT03095040). FUNDING:Betta Pharmaceutical Co., Ltd., Hangzhou, China.

SUBMITTER: Sheng X

PROVIDER: S-EPMC7184160 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature

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Phase 1 trial of vorolanib (CM082) in combination with everolimus in patients with advanced clear-cell renal cell carcinoma.

Sheng Xinan X Yan Xieqiao X Chi Zhihong Z Cui Chuanliang C Si Lu L Tang Bixia B Li Siming S Mao Lili L Lian Bin B Wang Xuan X Bai Xue X Zhou Li L Kong Yan Y Dai Jie J Ding Lieming L Mao Li L Guo Jun J

EBioMedicine 20200423

<h4>Background</h4>Vorolanib (X-82, CM082) is a multi-target tyrosine kinase inhibitor. This study aimed to evaluate the tolerability, safety, pharmacokinetics and antitumor activities of vorolanib plus everolimus (an inhibitor of mammalian target of rapamycin).<h4>Methods</h4>Patients had histologically or cytologically confirmed advanced RCC and failed with standard therapy were eligible for this study. Dose-escalated combinations of vorolanib (100, 150 or 200 mg once daily) with everolimus (5 ...[more]

PMID: 32335374

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Project description:Sunitinib is a standard-of-care treatment in advanced clear cell renal cell carcinoma (ccRCC). Retrospective and expanded access data suggest sunitinib has activity in advanced non-clear cell renal cell carcinoma (nccRCC).To prospectively determine the clinical efficacy and safety of sunitinib in patients with advanced nccRCC.This is a single-arm phase 2 trial with a two-stage design. Eligibility criteria included pathologically confirmed nccRCC or ccRCC with ? 20% sarcomatoid histology, performance status 0-2, measurable disease, a maximum of two prior systemic therapies, and no prior treatment with tyrosine kinase inhibitors directed against the vascular endothelial growth factor receptors.Patients received sunitinib 50mg daily on a 4-wk on, 2-wk off schedule.Primary end points were objective response rate (ORR) and progression-free survival (PFS). Secondary end points were safety and overall survival (OS).Fifty-seven patients were eligible (nccRCC histology: papillary, 27; chromophobe, 5; unclassified, 8; collecting duct or medullary carcinoma, 6; sarcomatoid, 7; and others, 4). Median PFS for 55 evaluable patients was 2.7 mo (95% confidence interval [CI], 1.4-5.4). Two patients with chromophobe and one patient with unclassified histology had a confirmed partial response (5% ORR). Median PFS for patients with papillary histology was 1.6 mo (95% CI, 1.4-5.4). Median PFS for patients with chromophobe histology was 12.7 mo (95% CI, 8.5-NA). Median OS for all patients was 16.8 mo (95% CI, 10.7-26.3). Treatment-emergent adverse events were consistent with sunitinib's mechanism of action. The nonrandomized design and small number of patients are limitations of this study.The differential response of chromophobe histology to sunitinib suggests a therapeutically relevant biological heterogeneity exists within nccRCC. The low ORR and short PFS with sunitinib in the other nccRCC subtypes underscore the need to enroll patients with these diverse tumors in clinical trials.

Project description:BackgroundSunitinib and everolimus are standard first-line and second-line therapies, respectively, in clear cell renal cell carcinoma (ccRCC).ObjectiveTo conduct a randomized phase 2 trial comparing sunitinib and everolimus in non-clear cell RCC (non-ccRCC).Design, setting, and participantsPatients with metastatic, non-ccRCC, or ccRCC with >20% sarcomatoid features (ccSRCC) were randomized to receive sunitinib or everolimus with crossover at disease progression.Outcome measurement and statistical analysisPrimary end point was progression-free survival (PFS) in first-line therapy; 108 patients were needed to show improvement in median PFS (mPFS) from 12 wk with sunitinib to 20 wk with everolimus.Results and limitationsInterim analysis of 68 patients (papillary [27], chromophobe [12], unclassified [10], translocation [7], ccSRCC [12]) prompted early trial closure. The mPFS in first-line therapy was 6.1 mo with sunitinib and 4.1 mo with everolimus (p=0.6); median overall survival (mOS) was not reached with sunitinib and was 10.5 mo with everolimus, respectively (p=0.014). At final analysis, mOS was 16.2 and 14.9 mo with sunitinib and everolimus, respectively (p=0.18). There were four partial responses (PRs) in first-line therapy (sunitinib: 3 of 33 [9%]; everolimus, 1 of 35 [2.8%]) and four PRs in second-line therapy (sunitinib: 2 of 21 [9.5%]; everolimus, 2 of 23 [8.6%]), with mPFS of 1.8 mo and 2.8 mo, respectively. In patients without sarcomatoid features in their tumors (n=49), mOS was 31.6 mo with sunitinib and 10.5 mo with everolimus (p=0.075). Genomic profiling of a chromophobe RCC from a patient with a PR to first-line everolimus revealed a somatic TSC2 mutation.ConclusionsIn this trial, everolimus was not superior to sunitinib. Both agents demonstrated modest efficacy, underscoring the need for better therapies in non-ccRCC.Patient summaryThis randomized phase 2 trial provides the first head-to-head comparison of everolimus and sunitinib in patients with metastatic non-clear cell renal cell carcinoma (non-ccRCC). The observed very modest efficacy underscores the need to develop more effective therapies for non-ccRCC.

Project description:Previous studies have shown a modest impact of tyrosine kinase inhibitors on primary renal tumors. Those studies were mostly retrospective or heterogeneous in their eligibility criteria with regard to histology, disease stage, duration of therapy, and time off therapy prior to surgery.To prospectively investigate the safety and efficacy of axitinib in downsizing tumors in patients with nonmetastatic biopsy-proven clear cell renal cell carcinoma (ccRCC).This was a single-institution, single-arm phase 2 clinical trial. Patients with locally advanced nonmetastatic biopsy-proven ccRCC were eligible.Patients received axitinib 5mg for up to 12 wk. Axitinib was continued until 36h prior to surgery. Patients underwent partial or radical nephrectomy after axitinib therapy.The primary outcome was objective response rate prior to surgery. Secondary outcomes included safety, tolerability, and quality of life. A dedicated radiologist independently reviewed all computed tomography scans to evaluate for response using Response Evaluation Criteria in Solid Tumors (RECIST).A total of 24 patients were treated. Twenty-two patients continued axitinib for 12 wk; 1 patient continued axitinib for 11 wk and underwent surgery as planned. One patient stopped treatment at 7 wk due to adverse events (AEs). Median reduction of primary renal tumor diameter was 28.3%. Eleven patients experienced a partial response per RECIST; 13 had stable disease. There was no progression of disease while on axitinib. The most common AEs were hypertension, fatigue, oral mucositis, hypothyroidism, and hand-foot syndrome. Postoperatively, 2 grade 3 and 13 grade 2 complications were noted. No grade 4 or 5 complications occurred. Functional Assessment of Cancer Therapy-Kidney Specific Index-15 changed over time, with quality of life worsening while on therapy, but by week 19, it was not statistically different from screening. Limitations include single-arm design and small patient numbers.Axitinib was clinically active and reasonably well tolerated in the neoadjuvant setting in patients with locally advanced nonmetastatic ccRCC.In this prospective clinical trial, we found that axitinib, when given prior to surgery, results in significant shrinking of kidney cancers. Larger studies are needed prior to further clinical use.This clinical trial was registered with clinicaltrials.gov (NCT01263769).

Project description:Nivolumab, a programmed death 1 (PD-1) checkpoint inhibitor, was associated with encouraging overall survival in uncontrolled studies involving previously treated patients with advanced renal-cell carcinoma. This randomized, open-label, phase 3 study compared nivolumab with everolimus in patients with renal-cell carcinoma who had received previous treatment.A total of 821 patients with advanced clear-cell renal-cell carcinoma for which they had received previous treatment with one or two regimens of antiangiogenic therapy were randomly assigned (in a 1:1 ratio) to receive 3 mg of nivolumab per kilogram of body weight intravenously every 2 weeks or a 10-mg everolimus tablet orally once daily. The primary end point was overall survival. The secondary end points included the objective response rate and safety.The median overall survival was 25.0 months (95% confidence interval [CI], 21.8 to not estimable) with nivolumab and 19.6 months (95% CI, 17.6 to 23.1) with everolimus. The hazard ratio for death with nivolumab versus everolimus was 0.73 (98.5% CI, 0.57 to 0.93; P=0.002), which met the prespecified criterion for superiority (P?0.0148). The objective response rate was greater with nivolumab than with everolimus (25% vs. 5%; odds ratio, 5.98 [95% CI, 3.68 to 9.72]; P<0.001). The median progression-free survival was 4.6 months (95% CI, 3.7 to 5.4) with nivolumab and 4.4 months (95% CI, 3.7 to 5.5) with everolimus (hazard ratio, 0.88; 95% CI, 0.75 to 1.03; P=0.11). Grade 3 or 4 treatment-related adverse events occurred in 19% of the patients receiving nivolumab and in 37% of the patients receiving everolimus; the most common event with nivolumab was fatigue (in 2% of the patients), and the most common event with everolimus was anemia (in 8%).Among patients with previously treated advanced renal-cell carcinoma, overall survival was longer and fewer grade 3 or 4 adverse events occurred with nivolumab than with everolimus. (Funded by Bristol-Myers Squibb; CheckMate 025 ClinicalTrials.gov number, NCT01668784.).

Dataset Information

Phase 1 trial of vorolanib (CM082) in combination with everolimus in patients with advanced clear-cell renal cell carcinoma.

Publications

Phase 1 trial of vorolanib (CM082) in combination with everolimus in patients with advanced clear-cell renal cell carcinoma.

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