GLORIA

GEOMAR Library Ocean Research Information Access

X

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • Online Resource  (15)
  • Wang, Tao  (15)
  • Medicine  (15)
  • 1
    Online Resource
    Online Resource
    Abstract PD8-05: Overall survival (OS) results from the phase III PHENIX trial of HER2+ metastatic breast cancer treated with pyrotinib plus capecitabine
    American Association for Cancer Research (AACR) ; 2022
    In:  Cancer Research Vol. 82, No. 4_Supplement ( 2022-02-15), p. PD8-05-PD8-05
    Details
    In: Cancer Research, American Association for Cancer Research (AACR), Vol. 82, No. 4_Supplement ( 2022-02-15), p. PD8-05-PD8-05
    Abstract: Background: Pyrotinib (an irreversible tyrosine kinase inhibitor targeting EGFR, HER2, and HER4) plus capecitabine previously demonstrated a statistically significant improvement in progression-free survival (PFS) over placebo plus capecitabine for HER2-positive local relapsed or metastatic breast cancer after prior trastuzumab and taxanes in the interim analysis of the PHENIX trial (NCT02973737; Jiang Z et al. Oral presentation at ASCO 2019, Abstract 1001). It is shown that patients also benefit from subsequent pyrotinib monotherapy after progressed on capecitabine alone. Here we present an updated OS from a follow-up period with a median of 42.1 months. Methods: This PHENIX trial enrolled patients with HER2-positive local relapsed or metastatic breast cancer who had received prior trastuzumab and taxanes and up to two prior lines of chemotherapy for relapsed or metastatic disease. Eligible patients were randomized 2:1 to receive pyrotinib (400 mg orally once daily) in combination with capecitabine (1000 mg/m2 orally twice daily on days 1-14 for 21-day cycles; P+C group) or placebo plus capecitabine followed by pyrotinib monotherapy upon disease progression (C-P group). Randomization was stratified by the presence of visceral disease (yes vs. no) and the hormone receptor status (estrogen receptor [ER]- and/or progesterone receptor [PR] -positive vs. ER- and PR-negative). The primary endpoint was the independent review committee-assessed PFS. The data cutoff for the updated OS analysis was January 15, 2021. Results: A total of 279 eligible patients were randomized, with 185 to P+C group and 94 to C-P group. As of data cutoff, the median duration of follow-up was 41.7 months (95% CI 40.2-42.4) in P+C group and 43.1 months (95% CI 38.8-44.5) in C-P group. 71 out of 94 patients who progressed on placebo plus capecitabine received pyrotinib monotherapy as the first subsequent anti-cancer therapy according to protocol. Excluding the protocol prespecified pyrotinib monotherapy, 129 (69.7%) patients in the P+C group and 74 (78.7%) patients in the C-P group received anti-cancer therapy after discontinuing study treatment, and 107 (57.8%) patients and 61 (64.9%) patients received post-discontinuation anti-HER2 drugs, respectively. 98 (53.0%) of the 185 patients in P+C group and 59 (62.8%) of the 94 patients in C-P group died by the time of data cutoff. Kaplan-Meier estimated median OS was 34.9 months (95% CI 28.4-42.1) in P+C group and 23.6 months (95% CI 19.3-34.4) in C-P group (HR 0.74, 95% CI 0.54-1.02; p=0.068). The 2-year OS rate was 65.2% (95% CI 57.6%-71.8%) versus 48.9% (95% CI 38.1%-58.7%), respectively. Subgroup analyses of OS were generally consistent with the overall result (Table 1). Conclusion: The updated OS analysis highlighted the long-term efficacy of pyrotinib plus capecitabine in pretreated HER2-positive local relapsed or metastatic breast cancer. We did not observe a statistically significant difference in OS between pyrotinib plus capecitabine group and capecitabine group followed by subsequent pyrotinib monotherapy upon disease progression. Table 1.Subgroup analysis of OS.Pyrotinib plus capecitabine (n=185)Placebo plus capecitabine (n=94)HR (95% CI) *Brain metastasesPresentEvents14/21 (66.7)8/10 (80.0)Median OS22.9 (19.7-35.0)17.3 (1.6-34.4)0.77 (0.32-1.84)AbsentEvents84/164 (51.2)51/84 (60.7)Median OS36.7 (30.7-43.0)23.6 (21.5-40.4)0.72 (0.51-1.02)Previous chemotherapyNoneEvents29/60 (48.3)12/22 (54.5)Median OS37.5 (34.2-NA)32.6 (18.9-NA)0.75 (0.38-1.47)1 lineEvents34/70 (48.6)27/47 (57.4)Median OS35.6 (25.9-NA)31.6 (18.0-NA)0.73 (0.44-1.21)2 linesEvents30/44 (68.2)13/18 (72.2)Median OS21.1 (13.6-33.4)15.9 (5.4-44.0)0.77 (0.40-1.49)Data are n/N (%) or median (95% CI). NA, not available. *HRs are from unstratified analyses. Citation Format: Zefei Jiang, Min Yan, Li Bian, Tao Wang, Xichun Hu, Qingyuan Zhang, Quchang Ouyang, Jifeng Feng, Yongmei Yin, Tao Sun, Zhongsheng Tong, Xiaojia Wang, Herui Yao, Shuping Jiang, Xiaoyu Zhu, Jianjun Zou. Overall survival (OS) results from the phase III PHENIX trial of HER2+ metastatic breast cancer treated with pyrotinib plus capecitabine [abstract]. In: Proceedings of the 2021 San Antonio Breast Cancer Symposium; 2021 Dec 7-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2022;82(4 Suppl):Abstract nr PD8-05.
    Type of Medium: Online Resource
    ISSN: 0008-5472 , 1538-7445
    URL: Article
    DOI: 10.1158/1538-7445.SABCS21-PD8-05
    RVK:
    XA 36000
    RVK:
    XA 10000
    Language: English
    Publisher: American Association for Cancer Research (AACR)
    Publication Date: 2022
    detail.hit.zdb_id: 2036785-5
    detail.hit.zdb_id: 1432-1
    detail.hit.zdb_id: 410466-3
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 2
    Online Resource
    Online Resource
    Efficacy of abemaciclib versus tucidinostat after progression on palbociclib in patients with HR+/HER2− MBC: A multicenter retrospective cohort study.
    American Society of Clinical Oncology (ASCO) ; 2023
    In:  Journal of Clinical Oncology Vol. 41, No. 16_suppl ( 2023-06-01), p. e13056-e13056
    Details
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 41, No. 16_suppl ( 2023-06-01), p. e13056-e13056
    Abstract: e13056 Background: For patients with hormone receptor-positive HER2-negeative metastatic breast cancer (HR+HER2-MBC), switching to another cyclin-dependent kinase 4/6 inhibitor (CDK4/6i) or target drug with different mechanism are reasonable treatment strategies post-CDK4/6i. However, no clinical data has been reported on which of the two strategies is more effective. We performed a retrospective cohort study to evaluate the efficacy of abemaciclib-based therapy versus tucidinostat-based therapy after progression on palbociclib. Methods: We identified patients with HR+/HER2- MBC who received abemaciclib-based therapy or tucidinostat-based therapy after progression on palbociclib from seven research centers in China. The primary endpoint was progression-free survival (PFS), the secondary endpoints were objective response rate (ORR), clinical benefit rate (CBR), PFS in patients with PIK3CA-mutant and PIK3CA wild-type, and safety. Results: Between Apr 1 st 2020 and September 30 th 2022, a total of 149 patients were included, of whom 73 patients received abemaciclib plus endocrine therapy(ET), and 76 patients received tucidinostat plus ET. The majority of patients had visceral disease (124/149, 83.2%) and ≥3 metastatic sites (76/149, 51.0%) at baseline, one third of patients (48/149, 32.2%) had previously been treated ≥3 lines of endocrine therapy in MBC setting. More patients received sequential therapy after palbociclib in abemaciclib group(49.3%) than that in tucidinostat group(30.3%). There were no statistically significant differences in other baseline characteristics between the two groups. Clinical benefit rate (CBR) was 38.4% (28/73) in abemaciclib group and 17.1% (13/76) in ET plus tucidinostat group (p=0.0037). There was significant difference in PFS between abemaciclib group and tucidinostat group in both the whole population (5.0 months vs. 2.0 months; HR 0.44; 95%CI 0.31-0.64; P＜0.001) and propensity score matched population. PIK3CA mutations occurred in 44.20% of patients who had undergone multigene sequencing. PIK3CA-mutant showed a negative effect on PFS of abemaciclib-based therapy. The most common any grade and grade 3-4 adverse events was neutropenia in either group. Common non-hematological toxicity occurred in abemaciclib group was diarrhea, and were increased AST, nausea, vomiting in tucidinostat group. Conclusions: Abemaciclib-based therapy improved clinical benefit rate and prolonged PFS compared with tucidinostat-based therapy, providing a superior treatment option in patients progressed on palbociclib.
    Type of Medium: Online Resource
    ISSN: 0732-183X , 1527-7755
    URL: Article
    DOI: 10.1200/JCO.2023.41.16_suppl.e13056
    RVK:
    XA 52760
    RVK:
    XA 10000
    Language: English
    Publisher: American Society of Clinical Oncology (ASCO)
    Publication Date: 2023
    detail.hit.zdb_id: 2005181-5
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 3
    Online Resource
    Online Resource
    A comparison between a clinical decision support system and clinicians with guidelines in breast cancer.
    American Society of Clinical Oncology (ASCO) ; 2023
    In:  Journal of Clinical Oncology Vol. 41, No. 16_suppl ( 2023-06-01), p. e13551-e13551
    Details
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 41, No. 16_suppl ( 2023-06-01), p. e13551-e13551
    Abstract: e13551 Background: We are building a clinical decision support system (CSCO AI) for breast cancer patients to improve the efficiency of clinical decision-making. We aimed to assess cancer treatment regimens, in neoadjuvant therapy, adjuvant chemotherapy, adjuvant endocrine therapy, first line therapy and second line therapy, given by CSCO AI and clinicians. Methods: 400 breast cancer patients were screened from the CSCO database. Clinicians with similar levels were randomly assigned one of the volumes (200 cases). After that, clinicians with guidelines were asked to answer the same cases again. CSCO AI was asked to assess all cases. Three reviewers were independently asked to evaluate the regimens from clinicians and CSCO AI. Regimens were masked before evaluation. The primary outcome was the proportion of high-level conformity (HLC), which were defined as the proportions of regimens in accordance with CSCO guidelines. Results: The overall concordance between clinicians and CSCO AI was 67.4% (2350/3500). After referring to the guideline, a total of 22.6% (792/3500) regimens were modified by clinicians, 12.9% (451/3500) had a higher grades and 9.7% (341/3500) had a lower grades. In early stage, the concordance was elevated with statistical significance from 71.3% (1497/2100) to 76.1% (1598/2100, p＜0.001). In the metastatic stage, the concordance was improved form 61.7% (864/1400) to 66.0% (924/1400, p=0.018). HLC in CSCO AI was 95.8% (95%CI:94.0%-97.6%), significantly higher than that in clinicians (90.8%, 95%CI:89.8%-91.8%) and in clinicians with guidelines (92.1%, 95%CI:91.0%-93.4%). In early stage, high-level conformity in CSCO AI was 95.7%, with no statistical significance when compared with clinicians (92.7%, p=0.078) and clinicians with guidelines (92.3%, p=0.050). In metastatic stage, high-level conformity in clinicians was only 88.0%, lower than that in CSCO AI (96.0%, p=0.001). However, after referring guidelines, high-level conformity in clinicians was elevated to 91.9%, with no significant difference when compared with that in CSCO AI (p=0.058). Considering professions, the high level conformity of surgeons was 85.9%, lower than that of CSCO AI (OR=0.25,95%CI: 0.16-0.41). The most significant difference in HLC was in first-line therapy (OR=0.06, 95%CI:0.01-0.41). When clinicians were divided according to their levels, there was no statistical significance between CSCO AI and higher-level clinicians. Conclusions: Clinical decision support for breast cancer was superior for most process outcomes except for second-line therapy. The improvements in process outcomes suggest that CSCO AI can be widely used in clinical practice.
    Type of Medium: Online Resource
    ISSN: 0732-183X , 1527-7755
    URL: Article
    DOI: 10.1200/JCO.2023.41.16_suppl.e13551
    RVK:
    XA 52760
    RVK:
    XA 10000
    Language: English
    Publisher: American Society of Clinical Oncology (ASCO)
    Publication Date: 2023
    detail.hit.zdb_id: 2005181-5
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 4
    Online Resource
    Online Resource
    Abstract P4-01-19: The combined detection of CTC and serum HER2 ECD predict PFS for HER2-positive advanced breast cancer patients
    American Association for Cancer Research (AACR) ; 2015
    In:  Cancer Research Vol. 75, No. 9_Supplement ( 2015-05-01), p. P4-01-19-P4-01-19
    Details
    In: Cancer Research, American Association for Cancer Research (AACR), Vol. 75, No. 9_Supplement ( 2015-05-01), p. P4-01-19-P4-01-19
    Abstract: Background: Circulating tumor cell (CTC) and serum HER2 ECD can all reflect an aggressive tumor behavior. We performed this prospective, monocenter, double-blinded study to investigate the potential clinical significance of combined detection of CTC and serum HER2 ECD for advanced breast cancer patients with histological HER2-positivity. Methods: A total of 88 eligible patients were enrolled in the present study from April 2012 to October 2013. We used Cell search system and ADVIA Centaur System to detect CTC and serum HER2 ECD respectively. Patients received systemic treatment according to national and international guidelines. Results: Twenty nine (33%) patients had ≥5 CTC, seventy three (83%) patients had serum HER2 ECD values of at least 15ng/ml, twenty seven (30.7%) patients had both elevated CTC and ECD values and fourteen (15.9%) patients had both normal CTC and ECD values. Patients with both normal CTC and serum HER2 ECD values exhibited a significantly longer median PFS than patients with both elevated values (9.0 months versus 2.8 months, p=0.023) and exhibited a trend toward longer PFS compared with patients with elevated CTC or ECD values (9.0 months versus 4.2 months, p=0.065), patients with both or one elevated values showed similar median PFS (2.8 months versus 4.2 months, p=0.211) (Figure1). Conclusions: The combined detection of CTC and serum HER2 ECD showed prognostic significance for HER-2 positive advanced breast cancer patients, patients with both normal values exhibited longer median PFS than others. Citation Format: Zefei Jiang, Jinmei Zhou, Tao Wang, Yi Liu, Lei Li, Huiqiang Zhang, Shaohua Zhang, Li Bian, Santai Song. The combined detection of CTC and serum HER2 ECD predict PFS for HER2-positive advanced breast cancer patients [abstract]. In: Proceedings of the Thirty-Seventh Annual CTRC-AACR San Antonio Breast Cancer Symposium: 2014 Dec 9-13; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2015;75(9 Suppl):Abstract nr P4-01-19.
    Type of Medium: Online Resource
    ISSN: 0008-5472 , 1538-7445
    URL: Article
    DOI: 10.1158/1538-7445.SABCS14-P4-01-19
    RVK:
    XA 36000
    RVK:
    XA 10000
    Language: English
    Publisher: American Association for Cancer Research (AACR)
    Publication Date: 2015
    detail.hit.zdb_id: 2036785-5
    detail.hit.zdb_id: 1432-1
    detail.hit.zdb_id: 410466-3
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 5
    Online Resource
    Online Resource
    Dynamic change of PD-L1 expression on circulating tumor cells in advanced breast cancer undergoing PD-1 blockade therapy.
    American Society of Clinical Oncology (ASCO) ; 2019
    In:  Journal of Clinical Oncology Vol. 37, No. 15_suppl ( 2019-05-20), p. e14558-e14558
    Details
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 37, No. 15_suppl ( 2019-05-20), p. e14558-e14558
    Abstract: e14558 Background: PD-1/PD-L1 checkpoint blockade immunotherapy is revolution- izing the therapeutic strategy of malignancies. Tumor PD-L1 levels have predictive value in PD-1/PD-L1 checkpoint blockade therapies. Whether PD-L1 expression on circulating tumor cells (CTCs) could serve as an alternative biomarker is of great interest, especially in breast cancer. Methods: We established an immunofluorescence assay for semi-quantitative assessment of the PD-L1 expression levels on CTCs with four categories (PD-L1negative, PD-L1low, PD-L1medium and PD-L1high). 20patients with advanced breast cancerwere enrolled who took PD-1 inhibitortherapy. The CTC numeration and the PD-L1 expression levels were analyzedat the begining and ending of treatment . Results: 20 patients were enrolled, 85%(17/20) were triple-negative breast cancer. 65% of patients had visceral metastases, 60% of patients had ≥3 lines of treatment. Prior the treatment of PD-1 inhibitor, 95% (19/20) patients had CTCs, ranging from1 to 53(median 5). 90% (18/20) had PD-L1positive CTCs, and 75% (15/20) had at least one PD-L1high CTCs. The clinical benefit rate(CBR) rate in PD-L1high patients (26.7%) is much higher than the others (0%). we examined the proportion of PD-L1high CTCs relative to total CTCs. The median proportion of PD-L1high CTCs was 33.3%. Patients with ≥33% PD-L1high CTCs had a significantly longer PFS (median 2.6 vs. 1.4 months( P = 0.027). 100% patients with CBR had PD-L1 high CTCs decreased and 46.7% of patients without CBR decreased. Further analysis showed that the mean proportion of PD-L1 high CTCs at baseline and after treatment was 56.8±20.7%, 19.0±23.7%, p = 0.005. There was no significant difference in the mean proportion of PD-L1 high CTCs before and after treatment in the non-CBR group (28.0±26.2%, 30.3±31.5%, p = 0.846). Conclusions: We revealed that the abundance of PD-L1high CTCs at baseline might serve as a predictor to screen patients for PD-1/PD-L1 blockade therapies and measuring the dynamic changes of PD-L1high CTCscould indicate the therapeutic response at early time.
    Type of Medium: Online Resource
    ISSN: 0732-183X , 1527-7755
    URL: Article
    DOI: 10.1200/JCO.2019.37.15_suppl.e14558
    RVK:
    XA 52760
    RVK:
    XA 10000
    Language: English
    Publisher: American Society of Clinical Oncology (ASCO)
    Publication Date: 2019
    detail.hit.zdb_id: 2005181-5
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 6
    Online Resource
    Online Resource
    Pilot trial of chidamide, an oral histone deacetylase (HDAC) inhibitor, in combination with exemestane in hormone receptor-positive advanced breast cancer.
    American Society of Clinical Oncology (ASCO) ; 2017
    In:  Journal of Clinical Oncology Vol. 35, No. 15_suppl ( 2017-05-20), p. e12543-e12543
    Details
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 35, No. 15_suppl ( 2017-05-20), p. e12543-e12543
    Abstract: e12543 Background: Chidamide (CHI) is a novel benzamide type of subtype-selective histone deacetylase inhibitor approved in China for refractory and relapsed peripheral T-cell lymphoma with a dosage of 30 mg PO twice a week. A randomized, double blind and placebo-controlled phase 3 clinical trial of CHI plus exemestane (EXE) is currently ongoing in patients (pts) with hormone receptor-positive (HR+) advanced breast cancer (ABC). This abstract reports the results from the pilot study preceded the phase 3 trial. Methods: Eligible pts were postmenopausal women recurrent or progressed to at least one endocrine therapy. In the run-in period for pharmacokinetic (PK) analysis, pts received EXE 25 mg on day (D) 1 and CHI 30 mg on D 2. From D 5 pts started combination treatment having EXE 25 mg daily and CHI 30 mg twice a week until progression of disease (PD) or intolerable toxicities. A treatment cycle was defined as 28 days. Safety, PK parameters and preliminary efficacy were assessed. Results: 20 pts with HR+ and HER-2 negative were enrolled between Jul and Dec, 2015. Median duration of treatment was 5 cycles (range 0-16), with 4 pts still on treatment. 3 pts discontinued due to adverse events (AE). Drug-related AEs ≥ grade 3 in 2 or more pts were neutropenia (35%), thrombocytopenia (30%), and leucopenia (20%). Similar plasma exposure of EXE was observed in the absence and presence of CHI ( 73 ± 27 vs. 80 ± 29 ng·hr/mL). A potential increased plasma exposure of CHI was noted in the presence of EXE compared with CHI alone ( 2232 ± 973 vs 1787 ± 946 ng·hr/mL), apparently related to the inter-patient variations in CHI plasma concentrations. Best response in 18 pts was assessed by RECIST, including 3 pts with partial response, 12 pts with stable disease and 3 pts with PD. Median progression free survival was 7.6 months. Conclusions: The combination of CHI and EXE was generally well tolerated. Most AEs were related to the CHI single-agent treatment that are generally manageable. Encouraging antitumor activity was observed. The overall results from this pilot trial enabled the next-stage clinical development of this combination regimen in HR+ ABC pts. Clinical trial information: NCT02482753.
    Type of Medium: Online Resource
    ISSN: 0732-183X , 1527-7755
    URL: Article
    DOI: 10.1200/JCO.2017.35.15_suppl.e12543
    RVK:
    XA 52760
    RVK:
    XA 10000
    Language: English
    Publisher: American Society of Clinical Oncology (ASCO)
    Publication Date: 2017
    detail.hit.zdb_id: 2005181-5
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 7
    Online Resource
    Online Resource
    Gemcitabine plus cisplatin versus vinorelbine plus cisplatin in patients with anthracycline- and taxane-pretreated HER2-negative metastatic breast cancer.
    American Society of Clinical Oncology (ASCO) ; 2014
    In:  Journal of Clinical Oncology Vol. 32, No. 15_suppl ( 2014-05-20), p. e12006-e12006
    Details
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 32, No. 15_suppl ( 2014-05-20), p. e12006-e12006
    Type of Medium: Online Resource
    ISSN: 0732-183X , 1527-7755
    URL: Article
    DOI: 10.1200/jco.2014.32.15_suppl.e12006
    RVK:
    XA 52760
    RVK:
    XA 10000
    Language: English
    Publisher: American Society of Clinical Oncology (ASCO)
    Publication Date: 2014
    detail.hit.zdb_id: 2005181-5
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 8
    Online Resource
    Online Resource
    A phase I study of JS001, a humanized PD-1mAbin patients with advanced triple negative breast cancer.
    American Society of Clinical Oncology (ASCO) ; 2018
    In:  Journal of Clinical Oncology Vol. 36, No. 15_suppl ( 2018-05-20), p. e15093-e15093
    Details
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 36, No. 15_suppl ( 2018-05-20), p. e15093-e15093
    Type of Medium: Online Resource
    ISSN: 0732-183X , 1527-7755
    URL: Article
    DOI: 10.1200/JCO.2018.36.15_suppl.e15093
    RVK:
    XA 52760
    RVK:
    XA 10000
    Language: English
    Publisher: American Society of Clinical Oncology (ASCO)
    Publication Date: 2018
    detail.hit.zdb_id: 2005181-5
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 9
    Online Resource
    Online Resource
    ADC vs HP dual-antibody for HER2-positive advanced breast cancer after failed to TKI.
    American Society of Clinical Oncology (ASCO) ; 2023
    In:  Journal of Clinical Oncology Vol. 41, No. 16_suppl ( 2023-06-01), p. e13036-e13036
    Details
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 41, No. 16_suppl ( 2023-06-01), p. e13036-e13036
    Abstract: e13036 Background: The application of tyrosine kinase inhibitor (TKI) is higher than that of antibody-drug conjugate (ADC) in the second-line anti-HER2 targeted therapy of patients with advanced breast cancer in China. The purpose of this study is to explore the efficacy and safety of the new generation anti-HER2 ADC, the previous generation ADC(T-DM1) and HP dual-antibody (trastuzumab + pertuzumab) in patients with HER2 positive advanced breast cancer who failed TKI therapy. Methods: This is a retrospective, nonrandomized, controlled study to compare the regimen of the new generation ADC, HP dual-antibody and T-DM1 for patients who failed TKI treatment. The primary end point was progression-free survival (PFS). The secondary end points included the overall response rate (ORR), the clinical benefit rate (CBR) and the safety. Results: A total of 213 patients were enrolled from January 2013 to June 2022. All patients were from the department of oncology, the fifth medical center of Chinese PLA General Hospital. The median age of all patients was 47y. Among these patients,73 cases were in the new generation ADC group (including DS8201 30 cases, MRG002 24 cases, ARX788 10 cases and RC48 9 cases), 71 cases were in T-DM1 group and 69 cases were in HP group (combination chemotherapy including taxane, vinorelbine, gemcitabine and capecitabine). The median PFS of the patients in the new generation ADC group , HP group and T-DM1 group was 7.0m, 6.6m, 4.0m respectively. The difference between the new generation ADC group and T-DM1 group was significant (HR=0.44,95%CI 0.30-0.66, P 〈 0.0001), which between HP group and T-DM1 group was also significant (HR=0.50,95%CI 0.34-0.74, P 〈 0.0001), meanwhile, which between the new generation ADC group and HP group was not significantly (HR=0.88, 95%CI 0.58-1.32, P=0.527)(Figure 1). The ORR in three groups was 54.8%, 27.5%, 22.5% respectively, and the new generation ADC group was significantly higher than the other two groups (P 〈 0.0001). The CBR in three groups was 65.8%, 62.3%, 47.9% respectively. The difference between the new generation ADC group and HP group was not significantly (P=0.67), and both were significantly higher than T-DM1 group (P=0.03). The most common grade 3 or 4 adverse event in the new generation ADC group was neutropenia (20.5%) and which in T-DM1 group was thrombocytopenia (28.1%). The incidence of interstitial lung disease in the two groups was 5.4% and 1.4% respectively. No grade 5 adverse event occurred. Conclusions: In our study, the new generation ADC significantly improved PFS and ORR compared with that for T-DM1 with manageable toxicity, so it can be considered an optimized subsequent treatment for HER2 positive advanced breast cancer after TKI failure. In addition, there was no significant difference in PFS and CBR between HP and the new generation ADC, thus HP dual-antibody regimen is also an optional treatment for patients who never used pertuzumab.
    Type of Medium: Online Resource
    ISSN: 0732-183X , 1527-7755
    URL: Article
    DOI: 10.1200/JCO.2023.41.16_suppl.e13036
    RVK:
    XA 52760
    RVK:
    XA 10000
    Language: English
    Publisher: American Society of Clinical Oncology (ASCO)
    Publication Date: 2023
    detail.hit.zdb_id: 2005181-5
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 10
    Online Resource
    Online Resource
    Construction of a prognostic hierarchical model for patients with HER2 positive breast cancer with brain metastases.
    American Society of Clinical Oncology (ASCO) ; 2023
    In:  Journal of Clinical Oncology Vol. 41, No. 16_suppl ( 2023-06-01), p. e13030-e13030
    Details
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 41, No. 16_suppl ( 2023-06-01), p. e13030-e13030
    Abstract: e13030 Background: Brain metastasis occurs in about 50% of advanced HER2-positive breast cancer patients. In clinical practice, we need accurate model to predict the patients’ survival time. According to survival time, we can arrange reasonable treatment strategy for HER2 positive breast cancer with brain metastases. Methods: The study recruited HER2-positive breast cancer brain metastasis (BCBM) patients who attended the Fifth Medical Center of PLA General Hospital from June 2003 to June 2022.All statistics were performed using SPSS version 22.0 and R version 3.4.3 software. Results: This study included 300 patients with HER2-positive BCBM. The median age at Brain Metastases diagnosis was 48.5 years, and the median Brain Metastases Overall Survival time (BMOS) was 18.0 months (95% CI: 14.6-21.4). A single-factor analysis of BMOS revealed that age, number of brain metastasis lesions, number of extracranial lesions during BCBM, radiotherapy after BCBM, anti-HER2 therapy after BCBM, and survival prognosis after BCBM were associated with survival prognosis after diagnosis of BCBM. According to a multi-factor analysis, the age, the number of brain metastases, radiotherapy after BCBM, and anti-HER2 therapy after BCBM were all independent factors influencing survival after diagnosis of BCBM. Different independent prognostic factors comprised the patient hierarchical evaluation model. Patients' warning scores range from 0 to 7. We divided the patients into three groups with obvious differences in prognosis： Low- intermediate-risk (score≥1), stroke group (score≥3) and high-risk group (score≥6). The patient prognosis was worse when the warning score was high. The results of Kaplan-Meier survival curve analysis showed significant prognosis differences between the three groups of patients (P 〈 0.0001). The mean Area Under Curve of the receiver operating characteristic curve for 1-yeasr, 2-year, and 3-year prognosis prediction was 0.69,0.71, and 0.67, respectively. For low-risk patients, the prognosis was significantly improved by using any anti-HER2 medications (P 〈 0.05). Trastuzumab + Pertuzumab can significantly improve the prognosis of patients at intermediate risk (P 〈 0.001, HR=0.24,95%CI: 0.13-0.43). Patients in the intermediate-risk group received both anti-HER2 medication and combined radiotherapy significantly prolonged BMOS in patients who received only drug therapy or radiotherapy (P=0.0132). Conclusions: A survival and prognostic stratification model was constructed based on the clinicopathological characteristics and treatment pattern of a large cohort of HER2-positive breast cancer patients with brain metastases, and the patients were divided into the low-risk group, intermediate-risk group and high-risk group. The optimal individualized treatment strategy was recommended according to different groups.
    Type of Medium: Online Resource
    ISSN: 0732-183X , 1527-7755
    URL: Article
    DOI: 10.1200/JCO.2023.41.16_suppl.e13030
    RVK:
    XA 52760
    RVK:
    XA 10000
    Language: English
    Publisher: American Society of Clinical Oncology (ASCO)
    Publication Date: 2023
    detail.hit.zdb_id: 2005181-5
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...