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  • 1
    In: Cancer Cell, Elsevier BV, Vol. 40, No. 3 ( 2022-03), p. 277-288.e3
    Type of Medium: Online Resource
    ISSN: 1535-6108
    Language: English
    Publisher: Elsevier BV
    Publication Date: 2022
    detail.hit.zdb_id: 2074034-7
    detail.hit.zdb_id: 2078448-X
    SSG: 12
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  • 2
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 37, No. 15_suppl ( 2019-05-20), p. 6017-6017
    Abstract: 6017 Background: Metastatic nasopharyngeal cancer (NPC) patients progressed afterstandardtherapy have limited treatment options. Toripalimab, also known as JS001, a humanized IgG4 antibody specific for human PD-1, has been approved for 2 nd line treatment of metastatic melanoma in China. Here we report the results from a phase IIstudy in metastatic NPC patients treated with toripalimab.(Clinical trial ID: NCT02915432). Methods: This multi-center, open-label, phase II registration study is designed to evaluate the safety and efficacy of toripalimab in metastaticNPC patients who have failed systemic treatment. Toripalimabis given at 3 mg/kg IV Q2W until disease progression or intolerable toxicity.Tumor PD-L1 expression, plasma EBV DNA level and other biomarkerswill be correlatedwith clinical response. Results: Enrollment of 190chemo-refractory metastatic NPCpatients was completed by Feb 2019 from 17 participating centers. The median age was 46 years, with 89.5% patients received at least 2 lines of prior systemic therapies. Treatment related adverse events (TRAE)occurred in 92% patients, which were mostly grade 1 or 2.Common TRAE includedanemia, hypothyroidism, AST increased, proteinuria, pyrexia, cough, constipation, ALT increased, hypoalbuminemia and pruritus.Grade 3 or higherTRAEoccurred in 25% patients.By the cut-off date of Jan 7 2019, among 135 evaluable patients, 3 complete responses, 31 partial responses and 40 stable diseaseswere observed for an objective response rate (ORR) of 25.2% and a disease control rate of 54.8%. PD-L1 expression results were obtained from 125 patients and 45.6% (57/125) were PD-L1+.PD-L1+ patientsachieved slightly higherORR than PD-L1- patients, 29.8% versus 22.1%. In addition, an average drop of 47-fold plasma EBV DNA copy number was observed in responding patients, which typically proceeded the radiographic identification of clinical benefit. Conclusions: Toripalimab has demonstrated a manageable safety profileand encouraging clinical activity in the largest check-point blockade study in NPC to date. A change in plasma EBV DNA copy number might serve as a predictive marker for favorable clinical response. Patients will be continuously monitored for additional safety and survival readouts. Clinical trial information: NCT02915432.
    Type of Medium: Online Resource
    ISSN: 0732-183X , 1527-7755
    RVK:
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    Language: English
    Publisher: American Society of Clinical Oncology (ASCO)
    Publication Date: 2019
    detail.hit.zdb_id: 2005181-5
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  • 3
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 34, No. 4_suppl ( 2016-02-01), p. 327-327
    Abstract: 327 Background: nab-P + Gem demonstrated significantly better overall survival (OS; median: 8.7 vs 6.6 mo; HR 0.72; P 〈 0.001) than Gem alone as first-line treatment for pts with MPC in the MPACT study. This phase II bridging study evaluated efficacy and safety of nab-P + Gem in Chinese pts with MPC. Methods: Efficacy and safety of nab-P 125 mg/m 2 + Gem 1000 mg/m 2 on days 1, 8, and 15 every 4 weeks was evaluated in a 3-part sequential study. In part 1, safety was examined. In part 2, efficacy was evaluated by the Simon optimal 2-stage design. If there were 〉 2 responses in 28 pts in stage 1 of part 2, an additional 54 pts would be treated in stage 2. The study would be completed if 〉 9 responses were observed. If there was an insufficient number of responses in either stage of part 2, part 3 would be triggered to compare nab-P + Gem vs Gem alone. The primary endpoint was overall response rate (ORR). Secondary endpoints included duration of response (DOR), OS, and safety. Correlation of OS and baseline neutrophil-to-lymphocyte ratio (NLR) was also analyzed. Results: Eighty-three pts were treated. Median age was 57.0 y; 19% were aged 〉 65 y; baseline Karnofsky performance status was 90 - 100 in 70% of pts and 70 - 80 in 30%. Combining results for stages 1 and 2, ORR was 35% by independent assessment, median DOR was 8.9 mo (95% CI, 6.01 - 8.94), median OS and PFS were 9.2 mo (95% CI, 7.60 - 11.10) and 5.5 mo (95% CI, 5.29 - 7.16), respectively (Table). Baseline NLR ≤ 5 was associated with a nonsignificant trend toward longer OS vs NLR 〉 5 (median, 10.0 vs 8.3 mo; HR 0.62; P= 0.148). The most common grade ≥ 3 adverse events included neutropenia (37%), leukopenia (31%), and fatigue (14%). Grade ≥ 3 peripheral neuropathy occurred in 7% of pts. Part 3 was not triggered per study design. Conclusions: nab-P + Gem demonstrated efficacy in Chinese pts with MPC. The OS and ORR were numerically better than those of the phase III MPACT trial (Table). A trend toward longer OS in pts with baseline NLR ≤ 5 vs 〉 5 confirmed previous findings from the MPACT study. No new safety signals were identified. Clinical trial information: NCT02135822. [Table: see text]
    Type of Medium: Online Resource
    ISSN: 0732-183X , 1527-7755
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    Language: English
    Publisher: American Society of Clinical Oncology (ASCO)
    Publication Date: 2016
    detail.hit.zdb_id: 2005181-5
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  • 4
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 38, No. 15_suppl ( 2020-05-20), p. e15083-e15083
    Abstract: e15083 Background: Platinum based chemotherapy is the standard care for 1 st line treatment of metastatic gastric adenocarcinoma (GC), esophageal squamous cell carcinoma (ESSC), nasopharyngeal carcinoma (NPC) and head and neck squamous cell carcinoma (HNSCC). Combinations of PD-1 blockade with chemotherapy have shown promising but mixed results in solid tumors. Predictive biomarkers for chemo-immunotherapy combination as 1 st line treatment remain undefined. Methods: Patients (n = 60) included in this analysis were four complete cohorts from a multi-center, phase Ib/II trial (NCT02915432) evaluating the safety and activity of toripalimab, a humanized PD-1 antibody in combination with standard chemotherapy for the 1 st line treatment of GC, EC, NPC and HNSCC (excluding NPC). Whole exome sequencing (WES), RNA sequencing and immunohistochemistry were performed on tumor biopsy samples. PD-L1 expression and tumor mutational burden (TMB) were evaluated for correlation with clinical efficacy. Results: From Oct 2016 to Feb 2019, 33 GC, 12 ESSC, 12 NPC and 3 HNSCC patients were enrolled and treated with 240mg or 360 mg toripalimab Q3W via IV infusion in combination with Oxaliplatin/Capecitabine (XELOX), Paclitaxel/Cisplatin (PP), Gemcitabine/Cisplatin (GP) and Docetaxel/Cisplatin/5-FU(TPF) respectively. By the data cutoff date of Nov 15, 2019, all patients experienced treatment related adverse event (TRAE). There was one TRAE (heart failure) leading to death. Grade 3-4 TRAEs occurred in 67% patients, mostly attributed to chemotherapy, including 27% neutropenia, 23% thrombocytopenia, 18% leukopenia and 12% anemia. As assessed by investigators according to RECIST v1.1, the ORR/DCR were 54.5%/84.8%, 66.7%/91.7%, 75.0%/83.3% and 33.3%/100% respectively for GC, EC, NPC and HSNCC cohorts. The median duration of response was 8.3, 6.8, 7.7 and 7.1 months respectively. WES showed distinctive patterns of genomic alterations among different cohorts. The clinical response was not correlated with either PD-L1 expression or tumor mutational burden. Conclusions: Toripalimab in combination with chemotherapy as first-line treatments showed promising results for metastatic GC, EC, NPC and HNSCC patients. Two randomized Phase III trials of toripalimab in combination with Paclitaxel/Cisplatin or Gemcitabine/Cisplatin versus chemotherapy alone are ongoing to further evaluate the combination as first-line treatments in metastatic EC and NPC patients. Clinical trial information: NCT02915432 .
    Type of Medium: Online Resource
    ISSN: 0732-183X , 1527-7755
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    Language: English
    Publisher: American Society of Clinical Oncology (ASCO)
    Publication Date: 2020
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  • 5
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 36, No. 4_suppl ( 2018-02-01), p. 108-108
    Abstract: 108 Background: Patients with gastric adenocarcinoma (GC) or gastroesophageal junction cancer (GEC) often present with advanced or metastatic disease, which has poor prognosis and limited treatment options and represent an important unmet medical need especially in China/Asia. JS001, a humanized recombinant IgG4 antibody against PD-1, selectively blocks the interactions of PD-1 with its ligands PD-L1 and PD-L2, and promotes antigen specific T-cell activation. A phase I study of JS001 in Chinese patients with heavily pretreated solid tumors has demonstrated an acceptable safety profile in doses up to 10 mg/kg Q2W. Here we report the safety and efficacy of JS001 in a phase Ib/II clinical study in Chinese patients with refractory/metastatic GC. (Clinical trial ID: NCT02915432) Methods: Refractory/metastatic GC Patients receive JS001 3 mg/kg Q2W until disease progression or unacceptable toxicity. All patients with measurable disease will be assessed for clinical response every 8 weeks according to the RECIST 1.1 criteria. Tumor PD-L1 expression as well as additional potential predictive biomarkers are monitored for correlation with clinical response. Results: Between Apr 19, 2017 and Sep 11, 2017, 48 GC pts (74.5% received at least 2 Lines of treatment) were enrolled into the study. Treatment related adverse events occurred were mostly grade 1 or 2. As of Sep 11, 2017, 25 GC pts have been evaluated for clinical efficacy. 5 PR (partial response) and 10 SD (stable disease) were observed (ORR 20% and DCR 60%). The PD-L1 expression positivity (defined as positive staining ³1% on Tumor Cell or on Immune Cell by SP142) in EC tumor was 14.3% (7/48). 3/5 (60%) PD-L1+ patients and 2/20 (10%) PD-L1 negative patients achieved partial responses. Conclusions: JS001 showed a promising preliminary clinical activity in heavily pre-treated metastatic GC pts with a manageable safety profile. Of the 25 evaluable GC patients by 9/11/2017, 5 PR and 10 SD were observed (ORR 20% and DCR 60%). Among PD-L1 positive patients (n=5), ORR was 60% and DCR 80%. Pts will be continuously monitored for safety and efficacy upon JS001 treatment. Clinical trial information: NCT02915432.
    Type of Medium: Online Resource
    ISSN: 0732-183X , 1527-7755
    RVK:
    RVK:
    Language: English
    Publisher: American Society of Clinical Oncology (ASCO)
    Publication Date: 2018
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  • 6
    In: Chinese Journal of Cancer Research, Chinese Journal of Cancer Research, Vol. 33, No. 4 ( 2021), p. 490-499
    Type of Medium: Online Resource
    ISSN: 1000-9604
    Language: English
    Publisher: Chinese Journal of Cancer Research
    Publication Date: 2021
    detail.hit.zdb_id: 2275810-0
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  • 7
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 38, No. 15_suppl ( 2020-05-20), p. 6542-6542
    Abstract: 6542 Background: Metastatic nasopharyngeal cancer (mNPC) patients progressed after standard therapy have limited treatment options. This study is to evaluate the clinical efficacy and safety of toripalimab in mNPC patients refractory to standard chemotherapy treatment (Clinical trial ID: NCT02915432). Methods: Patients receive 3 mg/kg toripalimab Q2W via IV infusion until disease progression, unacceptable toxicity, or voluntary withdrawal. Clinical response is assessed every 8 weeks according to RECIST v1.1. Tumor PD-L1 expression, plasma EBV titer and other biomarkers will be evaluated for correlation with clinical response. Results: From Dec 2016 to Feb 2019, 190 mNPC patients were enrolled from 17 participating centers in China. The median age was 46 years with 83% male. Patients were heavily pretreated with a median of 2 lines of prior systemic treatments. By the cutoff date of Jan 17, 2020, 97% patients experienced treatment related adverse events (TRAE). Most common TRAE included anemia, hypothyroidism, AST increased, proteinuria and fever. Grade 3+ TRAE occurred in 28% patients. Among 190 patients assessed by Independent Review Committee per RECIST v1.1, 6 CR, 33 PR and 40 SD were observed for an ORR of 20.5% and a DCR of 41.6%. The median DOR was 12.9 months. The median PFS and median OS were 1.9 months and 18.6 months respectively. PD-L1+ patients (n=48) had higher ORR than PD-L1- patients (n=134), 27.1% versus 19.4%. By tumor histology, ORR was higher in keratinizing NPC (n=8) than non-keratinizing NPC (n=168), 62.5% versus 19.0%. 144 patients had valid plasma EBV titer measured every 28 days during the study. An average drop of 101-fold plasma EBV titer from baseline was observed in patients with objective responses. Patients with 2-fold+ drop in plasma EBV titer on day 28 (n=60) went on to have 48.3% ORR and 76.7% DCR, whereas patients with less than 2-fold drop (n=88) had 5.7% ORR and 25.0% DCR. 14 responding patients who later developed progressive disease had at least 2-fold+ increase of plasma EBV tier 3-months (median) before radiographic identification of disease progression. Conclusions: Toripalimab demonstrated encouraging clinical activity with a manageable safety profile in mNPC patients refractory to standard chemotherapy. Patients with 2-fold+ drops in plasma EBV titer on day 28 from baseline had favorable clinical response of 48.3% ORR, which might be used as a predictive biomarker. Clinical trial information: NCT02915432 .
    Type of Medium: Online Resource
    ISSN: 0732-183X , 1527-7755
    RVK:
    RVK:
    Language: English
    Publisher: American Society of Clinical Oncology (ASCO)
    Publication Date: 2020
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  • 8
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 37, No. 15_suppl ( 2019-05-20), p. 4021-4021
    Abstract: 4021 Background: Tumor mutational burden (TMB) is correlated with enhanced objective response rate (ORR) and progression-free survival for certain cancers receiving immunotherapy. This study aimed to investigate the safety and activity of toripalimab, a humanized PD-1 antibody, in advanced gastric cancer (AGC), and the efficacy predictive value of biomarkers including TMB and PD-L1. Methods: This study was a part of phase Ib/II trial evaluating the safety and activity of toripalimab as a single agent therapy or in combination with chemotherapy in chemo-refractory or treatment-naïve AGC, esophageal squamous cell carcinoma, nasopharyngeal carcinoma and head and neck squamous cell carcinoma. This report focused on the chemo-refractory AGC cohort receiving toripalimab (3 mg/Kg d1, Q2W) as a single agent therapy. Primary endpoint was ORR. Biomarkers including tumor PD-L1 expression, TMB, microsatellite instability (MSI) and Epstein-Barr virus (EBV) infection status were evaluated for their correlation with clinical efficacy as preplanned. Tumor PD-L1 expression was assessed with the SP142 immunohistochemistry assay, and the other biomarkers were assessed with whole exome sequencing based on tumor samples. Results: There were 58 subjects included in this cohort. The ORR was 12.1% and the disease control rate was 39.7%. Only 1 subject was MSI-H and achieved partial response. One out of 4 EBV positive subjects achieved partial response. Significant higher ORR was observed in subjects with positive PD-L1 expression (ORR 37.5%, 3/8) or TMB ≥12 Mutations/Mb (ORR 33.3%, 4/8) than those with negative PD-L1 expression (ORR 8.5%) or TMB 〈 12 Mutations/Mb (ORR 7.0%). The TMB-high subgroup showed significant superior OS than the TMB-low subgroup (HR = 0.48 [96% CI 0.24 to 0.96], p = 0.038), while PD-L1 expression status failed to differentiate OS. Conclusions: Toripalimab demonstrated promising anti-tumor activity in chemo-refractory AGC patients. TMB might serve as a better predictive marker for OS than PD-L1 expression for chemo-refractory AGC patients receiving PD-1 blockade immunotherapy. Clinical trial information: NCT02915432.
    Type of Medium: Online Resource
    ISSN: 0732-183X , 1527-7755
    RVK:
    RVK:
    Language: English
    Publisher: American Society of Clinical Oncology (ASCO)
    Publication Date: 2019
    detail.hit.zdb_id: 2005181-5
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  • 9
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 36, No. 4_suppl ( 2018-02-01), p. 116-116
    Abstract: 116 Background: Patients with Esophageal squamous cell carcinoma (EC) often present with advanced and metastatic stage disease, which has poor prognosis and limited treatment options, and represent an important unmet medical need especially in China/Asia. JS001, a humanized recombinant IgG4 antibody against PD-1, selectively blocks the interactions of PD-1 with its ligands PD-L1 and PD-L2, and promotes antigen specific T-cell activation. A phase I study of JS001 in Chinese patients with heavily pretreated solid tumors has demonstrated an acceptable safety profile in doses up to 10 mg/kg Q2W. Here we report the safety and efficacy of JS001 in a phase Ib/II clinical study in Chinese patients with refractory/metastatic EC. (Clinical trial ID: NCT02915432) Methods: Refractory/metastatic EC Patients receive JS001 3 mg/kg Q2W until disease progression or unacceptable toxicity. All patients with measurable disease will be assessed for clinical response every 8 weeks according to the RECIST 1.1 criteria. Tumor PD-L1 expression as well as additional potential predictive biomarkers are monitored for correlation with clinical response. Results: Between Apr 19 2017 and Sep 11 2017, 56 EC pts (84.9% received at least 2 Lines of treatment) were enrolled into the study. Treatment related adverse events occurred were mostly grade 1 or 2. As of Sep 11 2017, 34 EC pts have been evaluated for clinical efficacy. Among these pts, 8 PR (partial response) and 14 SD (stable disease) were observed (ORR 23.5% and DCR 64.7%). The PD-L1 expression positivity (defined as positive staining ³1% on Tumor Cell [TC] or on Immune Cell [IC] by SP142) in EC tumor tissue was 21.4% (12/56). 2/10 (20%) PD-L1+ patients and 6/24 (25%) PD-L1 negative patients achieved partial responses. Conclusions: JS001 showed a promising preliminary clinical activity in heavily pre-treated metastatic EC pts with a manageable safety profile. Clinical response was not correlated with PD-L1 expression. Pts will be continuously monitored for safety and efficacy upon JS001 treatment. Clinical trial information: NCT02915432.
    Type of Medium: Online Resource
    ISSN: 0732-183X , 1527-7755
    RVK:
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    Language: English
    Publisher: American Society of Clinical Oncology (ASCO)
    Publication Date: 2018
    detail.hit.zdb_id: 2005181-5
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  • 10
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 36, No. 15_suppl ( 2018-05-20), p. e15560-e15560
    Type of Medium: Online Resource
    ISSN: 0732-183X , 1527-7755
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    Language: English
    Publisher: American Society of Clinical Oncology (ASCO)
    Publication Date: 2018
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