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  • American Society of Clinical Oncology (ASCO)  (6)
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  • American Society of Clinical Oncology (ASCO)  (6)
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  • 1
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 35, No. 15_suppl ( 2017-05-20), p. 1583-1583
    Abstract: 1583 Background: BRCA1/2 are cancer predisposition genes involved in hereditary breast and ovarian cancer (HBOC). Mutation carriers display an increased sensitivity to inhibitors of poly (ADP-ribose) polymerase (PARP). Despite a number of small-size hospital-based studies being previously reported, there is not yet, precise data of BRCA1/2mutations among Chinese epithelial ovarian cancer (EOC) pts. Methods: We performed a multicenter cohort study including 916 unselected consecutive EOC pts from eastern China, to screen for BRCA1/2mutations using the next-generation sequencing approach. Results: 153 EOC pts were found to carry pathogenic germline mutations in BRCA1/2, accounting for an overall mutation incidence of 16.7% with the predominance in BRCA1 (13.1%) compared with BRCA2 (3.9%). We identified 53 novel pathogenic mutations, among which the c.283_286delCTTG and the c.4573C 〉 T of BRCA1 were both found in two unrelated patients. More importantly, the most common mutation, c.5470_5477del8 was most likely to be Chinese population-related without an apparent founder origin. This hot-spot mutation was presumably associated with an increased risk of EOC. Taken together, germline BRCA1/2mutations were common in Chinese EOC pts with distinct mutational spectrum compared to Western populations. Conclusions: Our study contributes to the current understanding of BRCA1/2 mutation prevalence worldwide. We recommend BRCA1/2genetic testing to all Chinese women diagnosed with EOC in order to identify HBOC families, to provide genetic counselling and clinical management for at-risk relatives. Mutation carriers may also benefit from PARP-targeted therapies. [Table: see text]
    Type of Medium: Online Resource
    ISSN: 0732-183X , 1527-7755
    RVK:
    RVK:
    Language: English
    Publisher: American Society of Clinical Oncology (ASCO)
    Publication Date: 2017
    detail.hit.zdb_id: 2005181-5
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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. 7533-7533
    Abstract: 7533 Background: Classical Hodgkin’s lymphoma (cHL) is characterized by chromosome 9p24.1 alterations and PD-1 ligand overexpression. Sintilimab, a programmed death-1 checkpoint inhibitor, has demonstrated efficacy in relapsed/refractory cHL after the primary analysis of the ORIENT-1 study. Here, we report the updated safety and efficacy prolines after extended follow-up. Methods: ORIENT-1 is a multicenter, single-arm, phase II study in China. Classical Hodgkin’s lymphoma patients who had failed ≥2 lines of systemic therapy, including autologous hematopoietic stem cell transplantation (HSCT) were enrolled. Sintilimab, 200 mg IV was given every 3 weeks, until disease progression, death, unacceptable toxicity, or withdrawal from study. The primary endpoint was objective response rate (ORR) assessed by an independent radiological review committee (IRRC) according to 2007 IWG criteria. Results: 96 patients were treated. As of the data cutoff on 16 October, 2018 72.9% of patients were continuing treatment with a median follow-up of 14 months. Median number of treatment cycles was 20 (range: 1 to 26). ORR was 85.4% (82/96, 95%CI: 76.7 to 91.8) based on IRRC review. Twenty-eight patients (29.2%) achieved complete response (CR) by PET scan. At the time of analysis, 59 out of 82 patients who had achieved complete or partial response continued to have an on-going response. The median duration of response (DoR) and progression free survival (PFS) have not been reached. The most common treatment-related adverse event (TRAE) was pyrexia (40.6%, 39/96), 92.3% of which was grade 1 or 2. The most common grade 3 or 4 TRAEs were pyrexia (3.1%) and anemia (3.1%). One death occurred which was not considered treatment related. Conclusions: ORIENT-1 study has the largest cohort of cHL patients in China treated with a PD-1. In addition to a high rate of response, sintilimab also demonstrated durable efficacy and favorable long-term safety profile after extended follow-up. Clinical trial information: NCT03114683.
    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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  • 3
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 36, No. 15_suppl ( 2018-05-20), p. 7536-7536
    Type of Medium: Online Resource
    ISSN: 0732-183X , 1527-7755
    RVK:
    RVK:
    Language: English
    Publisher: American Society of Clinical Oncology (ASCO)
    Publication Date: 2018
    detail.hit.zdb_id: 2005181-5
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  • 4
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 37, No. 15_suppl ( 2019-05-20), p. 7534-7534
    Abstract: 7534 Background: A large fraction of patients with relapsed/refractory (r/r) Classic Hodgkin Lymphoma (cHL) enjoy a beneficial response induced by PD-1. However, no reliable predictive biomarkers for response or resistance are available. Sintilimab, an anti-PD1 agent, has recently demonstrated efficacy and safety in a multi-center, single-arm, phase II study of Chinese patients with r/r cHL (ORIENT-1). The predictive value of circulating tumor DNA (ctDNA) in longitudinal samples from patients in ORIENT-1 was investigated. Methods: A total of 192 plasma samples were collected from 75 patients prior to treatment and during therapy. After ctDNA extraction next-generation sequencing (NGS) was performed using the HiSeq Sequencing System to assess either a 619 or 659 gene panels at an average sequencing depth of 1260×. The panels include frequently mutated genes in cHL and other hematological malignancies. DNA from paired granulocytes was sequenced as presumptive germline control. Results: The genomic profiling of baseline ctDNA revealed a mean allele mutation frequency of 5.47%. Among the most frequently mutated genes in these cHL patients, PCLO and LRP1B are likely unique to Chinese r/r cHL patients. Truncating mutation of B2M, DNMT3, TNFRSF14 and KDM2B were found in patients with acquired resistance, of which TNFRSF14 and KDM2B have not been reported before and need to be confirmed in further study. The baseline ctDNA level was significantly different between objective response group (CR+PR, n = 41, median = 8.72) and non-responder group (SD+PD, n = 9, median = 2.9) ( p= 0.0070) Patients with ctDNA high achieved response earlier than others ( p 〈 0.05). A drop of 40% in ctDNA after three cycles of therapy confirmed as best cut-off to predict progression associated with clinical benefit, demonstrating 100% specificity. Patients with ctDNA drop ≥40% achieved response significantly earlier (median = 71 days) than others (median = 216 days, p= 0.0074). Conclusions: Our study demonstrated that ctDNA could serve as valuable biomarker for prediction of response or resistance to anti-PD1 immunotherapy.
    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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  • 5
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 39, No. 15_suppl ( 2021-05-20), p. 4061-4061
    Abstract: 4061 Background: The prognosis of cT4a/bN+ gastric cancer (GC) is poor due to low R0 resection rate and frequent recurrence. We evaluated the feasibility, safety, and efficacy of a combination of immunotherapy, anti-angiogenesis, and chemotherapy for neoadjuvant/conversion treatment of cT4a/bN+ GC. Methods: Patients with T4a/bN+ GC were enrolled to receive camrelizumab (200mg d1), apatinib (250mg d1-14), S-1 (50mg bid d1-10) ± oxaliplatin (85 mg/m 2 d1) for at least 2 cycles, followed by re-evaluation and operation. Peri-treatment samples were collected for whole-exome, transcriptome, and T cell receptor (TCR) sequencing. Pathological response (PR) and its relationship with genomic biomarkers are primary endpoints. Results: 25 patients were enrolled, with median age 63 (48-70), 19 male, 11 cT4aN2-3 and 14 cT4bN2-3. The radiological response (RR) rate of the treatments was 33.3% (8/24), and tumor down-staging rate 79.2% (19/24). 24 patients completed re-evaluation, with 3 failed conversion, 2 refused surgery, and 1 postponed surgery for immune-related pneumonia. Among the 18 patients with R0 resection, 3 got complete PR (CPR), 2 major PR (MPR, ≤10% residual cancer cells), and 3 partial PR (11̃49% residual cancer cells), with a PR rate of 44.4% and MPR+ (MPR & CPR) rate of 27.8%. 62.5% patients with PR and 83.3% patients with RR overlapped with each other. At a median of 12.5 (3.4-19.5) months of follow-up, 13 of 17 patients (76.5%) with R0 resection were recurrence-free. No ≥3 toxicity was found. Besides high microsatellite instability, tumor mutation/neoantigen burden (TMB/TNB), mutation signatures (“DNA damage repair” and “DNA mismatch repair”) and related gene mutations (BRCA2, PRKDC, ATM, POLD1, POLE), several novel driver mutations (SSPO, TRPS1, and DOCK2) and copy number variants (DUSP15 loss, FDFT1 gain, and RBBP8NL loss) were related to MPR+ GC. The combination therapy decreased TMB/TNB, facilitated infiltration of active immune cells (CD4 + memory T, CD8 + T, activated and plasmacytoid dendritic cells, and M1 macrophage), and specifically boosted TCR clonality in MPR+ patients. Besides, numbers of mesenchymal stem cells decreased in MPR+ but increased in MPR- GC after the treatment. Conclusions: Combination of camrelizumab, apatinib, S-1 ± oxaliplatin is feasible, safe, and efficient in neoadjuvant/conversion therapy for cT4a/bN+ GC. It may remodel immune microenvironments and induce anti-tumor immune responses. Clinical trial information: NCT03878472. [Table: see text]
    Type of Medium: Online Resource
    ISSN: 0732-183X , 1527-7755
    RVK:
    RVK:
    Language: English
    Publisher: American Society of Clinical Oncology (ASCO)
    Publication Date: 2021
    detail.hit.zdb_id: 2005181-5
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  • 6
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 38, No. 15_suppl ( 2020-05-20), p. 8034-8034
    Abstract: 8034 Background: Sintilimab, a programmed death-1 checkpoint inhibitor, has demonstrated efficacy in relapsed/refractory cHL after the primary analysis of the ORIENT-1 study. Here, we report the updated safety and efficacy profile after long-term follow-up. Methods: ORIENT-1 is a multicenter, single-arm, phase II study in China. Classical Hodgkin’s lymphoma patients who had failed ≥2 lines of systemic therapy, including autologous hematopoietic stem cell transplantation (HSCT) were enrolled. Sintilimab, 200 mg IV was given every 3 weeks, until disease progression, death, unacceptable toxicity, or withdrawal from study. The primary endpoint objective response rate (ORR) by an independent radiological review committee (IRRC) per IWG 2007 has been reported before. The progression free survival (PFS) by IRRC follow-up data are reported herein. Results: 96 patients were treated. As of the data cutoff on 30 Sep, 2019, 57.3 % patients complete two-year treatment, with a median follow-up of 26.7 months. The median duration of treatment was 24.1 months (range: 0.7 to 24.8). Of 49 patients with progressive disease (PD) by investigator, 39/49 (79.6%) patients received treatment beyond PD, with a median treatment duration after PD of 8.0 months (range: 1.4 to 20.8). The median PFS was 18.6 months (95%CI: 14.4 to 22.3). Median overall survival has not been reached. Two-year OS rate was 96.3% (95%CI: 88.9% to 98.8%). The treatment-related adverse event (TRAE) was reported in 92/96 (95.8%) patients, most (71/96, 74.0%) of which were grade 1-2. The most common grade 3 or 4 TRAEs were pyrexia (3/96, 3.1%), lipase increased (3/96, 3.1%) and lymphocyte decreased (3/96, 3.1%). Conclusions: The results from long-term follow-up showed that, in addition to a high rate of response, sintilimab also demonstrated durable efficacy and favorable long-term safety profile. Considering the high rate (nearly 80%) of treatment beyond PD, IWG 2007 which was used to evaluate PFS may not be a suitable criteria for evaluating the efficacy of anti-PD-1 antibody in cHL. Further investigation and analysis are required. Clinical trial information: NCT03114683 .
    Type of Medium: Online Resource
    ISSN: 0732-183X , 1527-7755
    RVK:
    RVK:
    Language: English
    Publisher: American Society of Clinical Oncology (ASCO)
    Publication Date: 2020
    detail.hit.zdb_id: 2005181-5
    Location Call Number Limitation Availability
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