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Camrelizumab combined with apatinib in patients with first-line platinum-resistant or PD-1 inhibitor resistant recurrent/metastatic nasopharyngeal carcinoma: a single-arm, phase 2 trial.

ABSTRACT: Immunotherapy combined with antiangiogenic targeted therapy has improved the treatment of certain solid tumors, but effective regimens remain elusive for refractory recurrent/metastatic nasopharyngeal carcinoma (RM-NPC). We conducted a phase 2 trial to evaluate the safety and activity of camrelizumab plus apatinib in platinum-resistant (cohort 1, NCT04547088) and PD-1 inhibitor resistant NPC (cohort 2, NCT04548271). Here we report on the primary outcome of objective response rate (ORR) and secondary endpoints of safety, duration of response, disease control rate, progression-free survival, and overall survival. The primary endpoint of ORR was met for cohort 1 (65%, 95% CI, 49.6-80.4, n = 40) and cohort 2 (34.3%; 95% CI, 17.0-51.8, n = 32). Grade ≥ 3 treatment-related adverse events (TRAE) were reported in 47 (65.3%) of 72 patients. Results of our predefined exploratory investigation of predictive biomarkers show: B cell markers are the most differentially expressed genes in the tumors of responders versus non-responders in cohort 1 and that tertiary lymphoid structure is associated with higher ORR; Angiogenesis gene expression signatures are strongly associated with ORR in cohort 2. Camrelizumab plus apatinib combination effectiveness is associated with high expression of PD-L1, VEGF Receptor 2 and B-cell-related genes signatures. Camrelizumab plus apatinib shows promising efficacy with a measurable safety profile in RM-NPC patients.

SUBMITTER: Yuan L

PROVIDER: S-EPMC10425437 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature

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Camrelizumab combined with apatinib in patients with first-line platinum-resistant or PD-1 inhibitor resistant recurrent/metastatic nasopharyngeal carcinoma: a single-arm, phase 2 trial.

Yuan Li L Jia Guo-Dong GD Lv Xiao-Fei XF Xie Si-Yi SY Guo Shan-Shan SS Lin Da-Feng DF Liu Li-Ting LT Luo Dong-Hua DH Li Yi-Fu YF Deng Shen-Wen SW Guo Ling L Zeng Mu-Sheng MS Cai Xiu-Yu XY Liu Sai-Lan SL Sun Xue-Song XS Li Xiao-Yun XY Li Su-Chen SC Chen Qiu-Yan QY Tang Lin-Quan LQ Mai Hai-Qiang HQ

Nature communications 20230814 1

Immunotherapy combined with antiangiogenic targeted therapy has improved the treatment of certain solid tumors, but effective regimens remain elusive for refractory recurrent/metastatic nasopharyngeal carcinoma (RM-NPC). We conducted a phase 2 trial to evaluate the safety and activity of camrelizumab plus apatinib in platinum-resistant (cohort 1, NCT04547088) and PD-1 inhibitor resistant NPC (cohort 2, NCT04548271). Here we report on the primary outcome of objective response rate (ORR) and secon ...[more]

PMID: 37580352

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Project description:PurposeImmune checkpoint inhibitors combined with antiangiogenic therapy reportedly have potential synergistic antitumor activity. We investigated the activity and safety of this regimen for recurrent/metastatic nasopharyngeal carcinoma (NPC).MethodsThis single-arm, Simon two-stage study enrolled patients with recurrent/metastatic NPC who were refractory to at least first-line systemic therapy and treatment-naive to immune checkpoint inhibitors. The patients received camrelizumab 200 mg once every 3 weeks and apatinib 250 mg once per day. The primary end point was the objective response rate. Key secondary end points included disease control rate, progression-free survival, duration of response, overall survival, and safety.ResultsBetween October 14, 2020, and December 23, 2021, 58 patients were enrolled, and all were included in the efficacy and safety analysis set. The objective response rate was 65.5% (95% CI, 51.9 to 77.5), and the disease control rate was 86.2% (95% CI, 74.6 to 93.9). The median duration of response was not reached, and the median progression-free survival was 10.4 months (95% CI, 7.2 to 13.6), with a median follow-up duration of 12.4 months (range, 2.1-19.9 months). Treatment-related adverse events (TRAEs) of grade 3 or higher were reported in 34 (58.6%) patients, with the most common being hypertension (19.0%), nasopharyngeal necrosis (15.5%), headache (12.1%), AST elevation (10.3%), and creatine phosphokinase elevation (10.3%). Sixteen (27.6%) patients discontinued apatinib treatment before progression because of unbearable TRAEs, and the most common complication was nasopharyngeal necrosis (9/16; 56.3%). Recurrent nasopharyngeal lesions (odds ratio, 5.94 [95% CI, 1.45 to 24.24]) and reirradiation (odds ratio, 5.33 [95% CI, 1.15 to 24.79]) were significantly positively correlated with nasopharyngeal necrosis.ConclusionCamrelizumab plus apatinib had promising antitumor activity in patients with refractory recurrent/metastatic NPC who failed first-line therapy. Moderate to severe TRAEs were experienced by 58.6%, including nasopharyngeal necrosis associated with local recurrence and a history of reirradiation.

Project description:ObjectiveThis study aimed to investigate the cost-effectiveness of adding Chinese-developed anti-PD-1 antibody camrelizumab to first-line platinum-doublet chemotherapy in patients with recurrent or metastatic nasopharyngeal carcinoma (L/M NPC) from the perspective of Chinese healthcare system.DesignA Markov model consisting of four health states, progression-free survival, first progression survival, second progression survival and death, was built to simulate 3-week patient transitions over a 20-year horizon. A direct comparison between first-line camrelizumab in combination with gemcitabine plus cisplatin and gemcitabine plus cisplatin was performed by calculating transition probabilities from the CAPTAIN-1st trial. Costs and utilities were collected from the local public database and literature. One-way and probabilistic sensitivity analyses were employed to evaluate the robustness of the model.SettingThe Chinese healthcare system perspective.ParticipantsA hypothetical cohort of Chinese patients with pathologically diagnosed L/M NPC who had an Eastern Cooperative Oncology Group performance status of 0 or 1.InterventionsFirst-line camrelizumab in combination with camrelizumab and gemcitabine plus cisplatin (CGP) versus gemcitabine plus cisplatin (GP).Primary outcome measureCost, quality-adjusted life-years (QALYs), incremental cost-effectiveness ratio (ICER).ResultsThe baseline analysis demonstrated that, compared with first-line GP, first-line CGP yields an effectiveness increase of 0.26 QALY, accompanied by an increment of US$6137.59 in healthcare cost. This results in an ICER of US$23 482.32/QALY. With the willingness-to-pay (WTP) threshold for a QALY set at US$37 654.50, first-line CGP proves to be cost-effective in 97.20% of the iterations. Deterministic sensitivity analyses indicated that the uncertainty in model parameters had no substantial effect on our results. Probability sensitivity analysis indicated that CGP was cost-effective at the assumed WTP threshold.ConclusionFor Chinese patients with L/M NPC, adding Chinese-developed anti-PD-1 antibody camrelizumab to the first-line GP chemotherapy may be cost-effective.

Project description:BackgroundTreatment options for patients with recurrent/metastatic nasopharyngeal carcinoma (RM-NPC) are not clear after progression on previous treatment with PD-(L)1 inhibitor; critical gaps in evidence remain for such cases. Immunotherapy combined with antiangiogenic therapy has been reported to have synergistic antitumor activity. Therefore, we evaluated the efficacy and safety of camrelizumab plus famitinib in patients with RM-NPC who failed treatment with PD-1 inhibitor-containing regimens.MethodsThis multicenter, adaptive Simon minimax two-stage, phase II study enrolled patients with RM-NPC refractory to at least one line of systemic platinum-containing chemotherapy and anti-PD-(L)1 immunotherapy. The patient received camrelizumab 200 mg every 3 weeks and famitinib 20 mg once per day. The primary endpoint was objective response rate (ORR), and the study could be stopped early as criterion for efficacy was met (>5 responses). Key secondary endpoints included time to response (TTR), disease control rate (DCR), progression-free survival (PFS), duration of response (DoR), overall survival (OS), and safety. This trial was registered with ClinicalTrials.gov, NCT04346381.FindingsBetween October 12, 2020, and December 6, 2021, a total of 18 patients were enrolled since six responses were observed. The ORR was 33.3% (90% CI, 15.6-55.4) and the DCR was 77.8% (90% CI, 56.1-92.0). The median TTR was 2.1 months, the median DoR was 4.2 months (90% CI, 3.0-not reach), and the median PFS was 7.2 months (90% CI, 4.4-13.3), with a median follow-up duration of 16.7 months. Treatment-related adverse events (TRAEs) of grade ≥3 were reported in eight (44.4%) patients, with the most common being decreased platelet count and/or neutropenia (n = 4, 22.2%). Treatment-related serious AEs occurred in six (33.3%) patients, and no deaths occurred due to TRAEs. Four patients developed grade ≥3 nasopharyngeal necrosis; two of them developed grade 3-4 major epistaxis, and they were cured by nasal packing and vascular embolization.InterpretationCamrelizumab plus famitinib exhibited encouraging efficacy and tolerable safety profiles in patients with RM-NPC who failed frontline immunotherapy. Further studies are needed to confirm and expand these findings.FundingJiangsu Hengrui Pharmaceutical Co., Ltd.

Dataset Information

Camrelizumab combined with apatinib in patients with first-line platinum-resistant or PD-1 inhibitor resistant recurrent/metastatic nasopharyngeal carcinoma: a single-arm, phase 2 trial.

Publications

Camrelizumab combined with apatinib in patients with first-line platinum-resistant or PD-1 inhibitor resistant recurrent/metastatic nasopharyngeal carcinoma: a single-arm, phase 2 trial.

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