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  • American Society of Clinical Oncology (ASCO)  (60)
  • 1
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    Real-world outcomes of Asian patients with advanced BRAF-mutant melanoma treated with first-line BRAF/MEK inhibitors, anti-PD-1 monotherapy, or combination of nivolumab plus ipilimumab: A multicenter retrospective study in Japan (B-CHECK-RWD study).
    American Society of Clinical Oncology (ASCO) ; 2022
    In:  Journal of Clinical Oncology Vol. 40, No. 16_suppl ( 2022-06-01), p. e21553-e21553
    Details
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 40, No. 16_suppl ( 2022-06-01), p. e21553-e21553
    Abstract: e21553 Background: The systemic treatment for advanced BRAF-mutant melanoma includes BRAF/MEK inhibitors (BRAF/MEKi), anti-PD-1 monotherapy (aPD1), and the combination of nivolumab plus ipilimumab (NIVO/IPI). Several studies have demonstrated favorable survival benefits for those treated with immunotherapy upfront. Most of these studies, however, were conducted among Caucasian-dominant cohorts; evidence for Asian patients is limited. Therefore, our objective was to assess the efficacy of first-line therapies for Asian patients in a real-world setting. Methods: We retrospectively collected the clinical data of Asian patients with advanced BRAF-mutant melanoma treated with first-line BRAF/MEKi, aPD1, or NIVO/IPI from 26 institutions in Japan. Clinical outcomes were determined by assessing the objective response rate (ORR), progression-free survival (PFS), and overall survival (OS) by first-line therapies. Kaplan‐Meier curves and log‐rank tests, as well as multivariable Cox proportional hazard models were used to estimate survival probabilities. Results: We identified 316 Asian patients treated with first-line BRAF/MEKi (n = 224), aPD1 (n = 59), or NIVO/IPI (n = 33) between 2016 and 2021. At baseline, the median age of the patients in each treatment arm was 63, 62, and 54, respectively (p = 0.053). The ORR in the first-line therapy was 69%, 29%, and 27%, respectively (p 〈 0.001). With a median follow-up of 18.9 months, the median PFS was 16.2, 5.6, and 6.4 months (p = 0.001); and the median OS was 36.9, 37.9 months, and not reached (p = 0.386), respectively. In a multivariable analysis, the predictive factors of short PFS were first-line therapy with aPD1 (HR, 2.44; 95%CI, 1.70-3.50, p 〈 0.001) or NIVO/IPI (1.73; 1.06–2.83, p = 0.029), BRAF V600K (p = 0.031), ECOG PS ≥2 (p = 0.011), elevated lactate dehydrogenase (LDH) levels (p = 0.001), and M1a/M1c/M1d stages (p = 0.036/ 〈 0.001/ 〈 0.001, respectively). Predictive factors of short OS were BRAF V600K (p = 0.042), ECOG PS ≥2 (p = 0.001), elevated LDH levels (p 〈 0.001), and M1c/M1d stages (both p 〈 0.001). The OS did not differ significantly by first-line therapies between BRAF/MEKi, aPD1 (1.52; 0.98–2.34, p = 0.061), and NIVO/IPI (0.63; 0.31–1.27, p = 0.194). Conclusions: Although upfront NIVO/IPI showed the longest OS numerically, its superiority over BRAF/MEKi in Asian patients seems to be modest compared with Caucasian patients. Because upfront BRAF/MEKi showed an OS that was comparable with that of aPD1, BRAF/MEKi remains an active first-line therapy option, especially for those who are not amenable to take the high risk of immune-related toxicities.
    Type of Medium: Online Resource
    ISSN: 0732-183X , 1527-7755
    URL: Article
    DOI: 10.1200/JCO.2022.40.16_suppl.e21553
    RVK:
    XA 52760
    RVK:
    XA 10000
    Language: English
    Publisher: American Society of Clinical Oncology (ASCO)
    Publication Date: 2022
    detail.hit.zdb_id: 2005181-5
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  • 2
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    A randomized phase II/III trial comparing hepatectomy followed by mFOLFOX6 with hepatectomy alone for liver metastasis from colorectal cancer: JCOG0603 study.
    American Society of Clinical Oncology (ASCO) ; 2020
    In:  Journal of Clinical Oncology Vol. 38, No. 15_suppl ( 2020-05-20), p. 4005-4005
    Details
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 38, No. 15_suppl ( 2020-05-20), p. 4005-4005
    Abstract: 4005 Background: The role of adjuvant chemotherapy after hepatectomy is controversial for liver only metastases from colorectal cancer (LM). Current recommendations for oxaliplatin-containing adjuvant regimen (FOLFOX) for LM are based on extrapolation of the results of the EORTC intergroup trial 40983, which showed that perioperative FOLFOX confirmed a progression-free survival benefit but did not affect overall survival (OS) in LM patients. We conducted a randomized controlled trial to determine if adjuvant modified FOLFOX (mFOLFOX) is superior to hepatectomy alone for LM. Methods: Eligible patients aged 20-75 years who had histologically proven colorectal adenocarcinoma with an unlimited number of LM were randomly assigned (1:1) to receive either adjuvant mFOLFOX6 (oxaliplatin 85mg/m 2 , l-LV 200 mg/m 2 , 5-FU bolus 400 mg/m 2 and 2400mg/m 2 over 48 h), for 12 cycles after surgery (CTX arm), or surgery alone (S alone arm). When treatment compliance after 9 courses of CTX was as high as expected in phase II, the registration was continued in phase III. The primary endpoint of phase III was disease-free survival (DFS), and the secondary endpoints were OS, toxicity, and sites of relapse. The planned sample size was 150 patients (pts) per arm, with a one-sided alpha of 5%, and 80% power detecting a 5y-DFS difference of 12% (25% with S alone vs. 37% with CTX). Results: Between Mar. 2007 and Jan. 2019, 300 patients were randomized. 151 pts were allocated to CTX, and 149 pts to S alone. When the third interim analysis of phase III was performed in Dec. 2019, the DSMC recommended the early termination of the trial because a statistically significant difference in terms of DFS but the futility in terms of OS was found. With a median follow-up period of 54 months for disease-free surviving patients, the 3y-DFS was 52.1% (95% CI 43.2 – 60.2) with CTX and 41.5% (33.2 – 49.6) with S alone (hazard ratio 0.63 [0.45 – 0.89], one-sided p = 0.002 〈 0.0163 for the one-sided alpha level at the interim analysis). However, the 3y-OS was 86.6% (79.2-91.4) with CTX and 92.2% (86.0 – 95.8) with S alone (hazard ratio 1.35 [0.84 – 2.19]). The 5y-OS was 69.5% (59.6-77.5) with CTX and 83.0% (74.5-88.9) with S alone. Median OS after recurrence was 38.4 months in the CTX arm and 87.6 in the S alone arm. Conclusions: DFS did not correlate with OS for LM. Postoperative chemotherapy with mFOLFOX6 improves DFS but worsens OS over surgery alone due to more deaths after recurrence in the CTX arm. Adjuvant mFOLFOX is not beneficial to patients after hepatectomy for LM. Clinical trial information: UMIN000000653 .
    Type of Medium: Online Resource
    ISSN: 0732-183X , 1527-7755
    URL: Article
    DOI: 10.1200/JCO.2020.38.15_suppl.4005
    RVK:
    XA 52760
    RVK:
    XA 10000
    Language: English
    Publisher: American Society of Clinical Oncology (ASCO)
    Publication Date: 2020
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  • 3
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    Characteristics and Outcomes of Patients With Advanced Gastric Cancer Who Declined to Participate in a Randomized Clinical Chemotherapy Trial
    American Society of Clinical Oncology (ASCO) ; 2011
    In:  Journal of Oncology Practice Vol. 7, No. 3 ( 2011-05), p. 148-153
    Details
    In: Journal of Oncology Practice, American Society of Clinical Oncology (ASCO), Vol. 7, No. 3 ( 2011-05), p. 148-153
    Abstract: There is insufficient data to verify whether participation in clinical trials in itself can lead to better clinical outcomes. We have analyzed the characteristics and outcomes of patients who declined to participate in a randomized trial in comparison with those who participated in the trial. Patients and Methods: A randomized trial for naive advanced gastric cancer was offered to 286 patients. The trial investigated the superiority of irinotecan plus cisplatin and the noninferiority of S-1 compared with continuous fluorouracil infusion. We retrospectively reviewed the characteristics and outcomes for both participants and nonparticipants in this trial. Results: Of the 286 patients, 98 (34%) declined to participate in the trial. The rate of declining was significantly higher among younger patients (P = .003), and it varied significantly between attending physicians (range, 23% to 58%; P = .004). There were no other significant correlations between rate of declining and patient characteristics. No significant differences were observed in the clinical outcomes between the participants and nonparticipants, for whom the median survival times were 367 versus 347 days, respectively. The hazard ratio for overall survival, adjusted for other confounding variables, was 1.21 (95% CI, 0.91 to 1.60). No interaction was observed between participation and the various regimens. Conclusion: There was no difference in clinical outcomes between participants and nonparticipants. However, the patient's age and the doctor-patient relationship may have an effect on patient accrual to randomized trials.
    Type of Medium: Online Resource
    ISSN: 1554-7477 , 1935-469X
    URL: Article
    DOI: 10.1200/JOP.2010.000106
    Language: English
    Publisher: American Society of Clinical Oncology (ASCO)
    Publication Date: 2011
    detail.hit.zdb_id: 3005549-0
    detail.hit.zdb_id: 2236338-5
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  • 4
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    Real-world efficacy of chemotherapy in patients with advanced extramammary Paget's disease: A retrospective, multicenter study of 204 Japanese patients.
    American Society of Clinical Oncology (ASCO) ; 2023
    In:  Journal of Clinical Oncology Vol. 41, No. 16_suppl ( 2023-06-01), p. e21579-e21579
    Details
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 41, No. 16_suppl ( 2023-06-01), p. e21579-e21579
    Abstract: e21579 Background: Extramammary Paget's disease (EMPD) is a rare skin cancer that develops in the vulva, anus, and axilla. The incidence rate of EMPD is 0.13 per 100,000 population/year in Caucasians and 0.28 in Asians; thus, it is more frequent in Asians. Although distant metastases have been reported to occur in 10%-20% of all cases of EMPD, standard systemic chemotherapy for advanced EMPD has not been established worldwide. Retrospective studies conducted thus far have been insufficient due to their small sample sizes. Furthermore, there are no reports comparing the effectiveness of multiple treatments. To establish a standard treatment for advanced EMPD, prospective clinical trials are necessary, and we are planning a prospective clinical trial. As a pilot study, we investigated a large sample of patients with advanced EMPD and analyzed the efficacy of systemic chemotherapies. Methods: Patients with advanced EMPD who were treated in 16 Japanese institutions during 2011-2022 were evaluated. The efficacy of each treatment was estimated by determining the objective response rate (ORR) or progression-free survival (PFS) and overall survival (OS) using the Kaplan-Meier analysis. Multivariable analysis was performed to account for potential confounding factors, such as age, sex, and performance status (PS). A total of 204 patients were enrolled, of which 164 (80.4%) patients were treated as follows: Docetaxel hydrate (DOC), n = 108 (52.9%); tegafur/ gimeracil/ oteracil potassium (S-1)/DOC, n = 16 (7.8%); fluorouracil/cisplatin (FP), n = 26 (12.8%); fluorouracil/epirubicin/carboplatin/vincristine/mitomycin C (FECOM), n = 3 (1.5%); and other, n = 11 (5.4%). Forty (19.6%) patients received the best supportive care. Results: OS and PFS did not differ significantly among the DOC, S-1/DOC, FP, FECOM, and other groups (p = 0.176 and p = 0.568, respectively). The ORRs in the S-1/DOC, DOC, FP, and FECOM groups were 75.0%, 51.9 %, 38.5%, and 66.7%, respectively. The odds ratio for the ORR of the S-1/DOC group compared with the DOC group estimated by the logistic regression analysis with adjustment for age, sex, and PS was 2.72, (95% CI: 1.09-6.78, p = 0.032). S-1/DOC was the only treatment with a significantly higher ORR than that of DOC, which is the most frequently used treatment for advanced EMPD in Japan. Conclusions: Although there were no significant differences in PFS and OS between the multiple regimens, the S-1/DOC group showed significantly higher ORR compared with the DOC group. Because the high response rate to S-1/DOC greatly improves the quality of life of patients with advanced EMPD, S-1/DOC may be more beneficial than DOC and other regimens for the treatment of advanced EMPD. A phase II clinical trial of S-1/DOC is currently planned in Japan.
    Type of Medium: Online Resource
    ISSN: 0732-183X , 1527-7755
    URL: Article
    DOI: 10.1200/JCO.2023.41.16_suppl.e21579
    RVK:
    XA 52760
    RVK:
    XA 10000
    Language: English
    Publisher: American Society of Clinical Oncology (ASCO)
    Publication Date: 2023
    detail.hit.zdb_id: 2005181-5
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  • 5
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    Prognostic factors in locally advanced, unresectable esophageal cancer patients treated with chemoradiotherapy (exploratory analysis of JCOG0303).
    American Society of Clinical Oncology (ASCO) ; 2015
    In:  Journal of Clinical Oncology Vol. 33, No. 3_suppl ( 2015-01-20), p. 150-150
    Details
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 33, No. 3_suppl ( 2015-01-20), p. 150-150
    Abstract: 150 Background: The prognosis of patients (pts) with locally advanced esophageal squamous cell carcinoma (LAESCC) is generally dismal. Definitive chemoradiotherapy (CRT) with cisplatin plus 5-fluorouracil (CF-RT) is the standard treatments especially for the pts with unresectable LAESCC. The aim of this study is to investigate the possible prognostic factors and predictive accuracy of the Glasgow Prognostic Score (GPS) in the pts with unresectable LAESCC treated with CRT. Methods: 142 patients were enrolled to JCOG0303, and assigned to standard CF-RT group and low-dose CF-RT group. 131 pts with sufficient data were used for this analysis. Cox regression model was used for an analysis of prognostic factors of the pts with unresectable LAESCC treated with CF-RT. GPS was classified by baseline CRP and serum albumin. Pts with a CRP ≤ 1.0 mg/dL and albumin ≥ 3.5 g/dL were allocated to GPS0 group. If only CRP was increased or albumin decreased,pts were allocated to the GPS1 and pts in whom CRP was 〉 1.0 mg/dL and albumin level 〈 3.5 g/dL were classified as GPS2. Results: The pts background was as follows: median age (range), 62 (37-75), male / female, 119/12; ECOG PS 0/1/2, 64/65/2; clinical stage (UICC 6th) IIB/III/IVA/IVB, 3/75/22/31. As a result of multivariable analysis including all variables, the factors which became statistically significant were shown in the table. In several sensitivity multivariate analyses, only esophageal stenosis was indicated as a common poor prognostic factor. In addition, overall survival tended to decrease according to GPS subgroups (median survival time(m): GPS0/GPS1/GPS2 16.1/14.9/8.7). Conclusions: Presence of stenosis was thought to be one of the candidates for stratification factor in randomized trial for unresectable LAESCC pts. Furthermore, GPS represents a prognostic fator in LAESCC pts treated with CRT. Clinical trial information: 000000861. [Table: see text]
    Type of Medium: Online Resource
    ISSN: 0732-183X , 1527-7755
    URL: Article
    DOI: 10.1200/jco.2015.33.3_suppl.150
    RVK:
    XA 52760
    RVK:
    XA 10000
    Language: English
    Publisher: American Society of Clinical Oncology (ASCO)
    Publication Date: 2015
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  • 6
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    Effect of lymph node dissection and adjuvant therapy in patients with sentinel node+ melanoma: An observational multicenter study.
    American Society of Clinical Oncology (ASCO) ; 2023
    In:  Journal of Clinical Oncology Vol. 41, No. 16_suppl ( 2023-06-01), p. e21569-e21569
    Details
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 41, No. 16_suppl ( 2023-06-01), p. e21569-e21569
    Abstract: e21569 Background: Currently, lymph node dissection (LND) is not mandatory for patients with sentinel node (SN)+ melanoma. Anti-programmed cell death receptor-1 (PD-1) monotherapy and dabrafenib/trametinib combination (for BRAF mutations) are standard adjuvant treatments for patients who undergo definitive surgery for melanoma. However, the effects of this approach remain unclear in patients with stage III melanoma in real-world clinical settings. We investigated the effects of the aforementioned therapeutic approaches on the prognosis of stage III melanoma in a Japanese cohort. Methods: We retrospectively analyzed clinical data of patients with SN+ melanoma treated with or without anti-PD-1 monotherapy or combination dabrafenib/trametinib therapy obtained from 39 independent institutions in Japan between 2018 and 2021. Survival outcomes (recurrence-free survival [RFS] and overall survival [OS] ) were compared with regard to LND, adjuvant therapy type, and clinical factors. Results: We investigated 357 patients; 35.9% (128/357) of patients underwent LND, of whom 70.3% (90/128) received adjuvant therapy. LND was not performed in 64.1% (229/357) of patients, of whom 74.7% (171/229) received adjuvant therapy. RFS and OS did not differ between patients with and without LND (2-year RFS 54.5% vs. 51.5%, p = 0.98; 2-year OS 84.1% vs. 86.5%, p = 0.39). RFS and OS did not differ between patients with and without adjuvant therapy (2-year RFS 54.5% vs. 50.4%, p = 0.90; 2-year OS 83.4% vs. 89.8%, p = 0.33). Multivariate analysis of RFS after adjustment for adjuvant therapy, clinical subtype, tumor thickness, ulceration, and BRAF status showed significant differences between patients with and without adjuvant therapy (hazard ratio 3.06 [95% confidence interval 1.39–6.76]). Data analysis in 261 patients who received adjuvant therapy showed no difference between patients with and without LND (2-year RFS 55.9% vs. 52.6%, p = 0.74; 2-year OS 83.4% vs. 83.6%, p = 0.73). Regarding adjuvant therapy type, RFS and OS were significantly longer in patients who received BRAF/MEK inhibitors than in those treated with PD-1 monotherapy (2-year RFS 75.0% vs. 42.2%, p 〈 0.01; 2-year OS 89.3% vs. 79.5%, p = 0.01). Conclusions: Our study revealed that LND did not affect prognosis and adjuvant therapy reduced the recurrence of stage III melanoma in a Japanese cohort. Although the follow-up period was short, with regard to drug selection, RFS and OS were significantly longer in patients treated with BRAF/MEK inhibitors than in those who received PD-1 monotherapy. Factors contributing to the lower effectiveness of PD-1 monotherapy remain unclear and warrant further investigation.
    Type of Medium: Online Resource
    ISSN: 0732-183X , 1527-7755
    URL: Article
    DOI: 10.1200/JCO.2023.41.16_suppl.e21569
    RVK:
    XA 52760
    RVK:
    XA 10000
    Language: English
    Publisher: American Society of Clinical Oncology (ASCO)
    Publication Date: 2023
    detail.hit.zdb_id: 2005181-5
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  • 7
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    Use of the intensity of membranous EGFR staining by immunohistochemistry to predict the efficacy of chemotherapy containing cetuximab in KRAS wild-type patients with metastatic colorectal cancer: A retrospective analysis.
    American Society of Clinical Oncology (ASCO) ; 2012
    In:  Journal of Clinical Oncology Vol. 30, No. 4_suppl ( 2012-02-01), p. 516-516
    Details
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 30, No. 4_suppl ( 2012-02-01), p. 516-516
    Abstract: 516 Background: KRAS mutation status is a strong predictive factor for anti-EGFR monoclonal antibody therapy efficacy in metastatic colorectal cancer (mCRC). In the BOND trial, objective response rates to cetuximab in irinotecan-refractory mCRC were not significantly different based on the intensity of EGFR staining by immunohistrochemistry (IHC). However, this result was not evaluated by KRAS mutation status, so we retrospectively evaluated the relationship between the efficacy of chemotherapy containing cetuximab and the intensity of membranous EGFR staining in KRAS wild type (KRAS-WT) patients. Methods: Between August 2008 and July 2011, specimens of 391 CRC patients were collected by endoscopic biopsy or surgical resection. EGFR staining by IHC and genetic screening for KRAS status were performed and intensity of EGFR staining was scored by the Guidelines for Interpreting EGFR pharmDx, DAKO. We analyzed 94 KRAS-WT patients who received combination chemotherapy with an irinotecan-regimen plus cetuximab or cetuximab monotherapy and met the following criteria: histologically proven mCRC adenocarcinoma , at least 1 previous regimen of standard fluoropyrimidine - containing chemotherapy , ECOG PS score 0-2, and adequate hepatic and renal function. Patients were classified into 2 groups by intensity of EGFR staining: (A) absence of staining and weakly to moderately positive (IHC 1+ and IHC 2+), (B) strongly positive (IHC 3+). Progression-free survival (PFS) and overall survival (OS) were estimated by the Kaplan-Meier method, and compared in Groups A and B by the log-rank test. Results: There was no significant difference in patient characteristics between the 2 groups except for primary site. The median PFS of Groups A (n=76) and B (n=18) were 5.4 months and 9.1 months (p= 0.029), the median OS was 8.1 months and 13.2 months (p=0.054) and response rate was 20.1% and 33.3%, respectively. Conclusions: In KRAS-WT patients with fluoropyrimidine-containing chemotherapy-refractory mCRC, strong intensity of EGFR staining by IHC might be predictive for efficacy of chemotherapy containing cetuximab.
    Type of Medium: Online Resource
    ISSN: 0732-183X , 1527-7755
    URL: Article
    DOI: 10.1200/jco.2012.30.4_suppl.516
    RVK:
    XA 52760
    RVK:
    XA 10000
    Language: English
    Publisher: American Society of Clinical Oncology (ASCO)
    Publication Date: 2012
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  • 8
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    Mutations in NRAS codon 61, KRAS codon 146, and BRAF V600E as prognostic factors in patients who received anti-EGFR antibody for metastatic colorectal cancer.
    American Society of Clinical Oncology (ASCO) ; 2012
    In:  Journal of Clinical Oncology Vol. 30, No. 15_suppl ( 2012-05-20), p. e14126-e14126
    Details
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 30, No. 15_suppl ( 2012-05-20), p. e14126-e14126
    Abstract: e14126 Background: Previous studies showed that gene mutations (NRAS, BRAF, PIK3CA) are associated with a poor prognosis or resistance of anti-EGFR antibody in metastatic colorectal cancer (mCRC) patients with wild type (WT) of KRAS codon 12/13 (KRAS-WT). However the significance of these biomarkers has not been clarified. In addition, EGFR immunohistochemistry (IHC) and EGFR gene amplification to evaluate the efficacy of anti-EGFR antibody treatment has not been reported for mCRC. Methods: We evaluated tumor response and survival in patients who received anti-EGFR antibody by mutation analysis of KRAS, NRAS, BRAF, and PIK3CA in KRAS-WT patients with mCRC. Tumor DNA samples are obtained from patients treated in our hospital with anti-EGFR antibody between August 2008 and August 2011. Results: A total of 117 patients were enrolled in this analysis, including 100 KRAS-WT patients. Seventy-one patients (60.7%) were all WT for KRAS, NRAS, BRAF, and PIK3CA, and 46 patients (39.3%) had at least 1 mutation or had insufficient DNA samples to analyze. Mutations of KRAS codon 61 (2 patients), KRAS codon 146 (5), BRAF V600E (2), PIK3CA exon9 (8), NRAS codon 12/13 (2), and NRAS codon 61 (5) were detected. No patients had a mutation of PIK3CA exon 20. Patients with at least 1 mutation had no response. Mutations of NRAS codon 61, KRAS codon 146, and BRAF V600E were associated with a shorter progression free survival (PFS) compared with all WT patients (p=0.049, p=0.004, p=0.036, respectively). Twelve patients (12% of KRAS-WT patients) with a mutation of NRAS codon 61, KRAS codon146, and BRAF V600E had poor prognosis compared with the other KRAS-WT patients (PFS, 6.4 vs 2.0 months, p 〈 0.001; overall survival (OS), 13.7 vs 7.9 months, p=0.012). In all WT patients, moderate to strong EGFR IHC was associated with a better response rate than negative and weak IHC (p=0.046). Conclusions: Mutations of NRAS codon 61, KRAS codon 146, and BRAF V600E could be a strong prognostic factor of anti-EGFR antibody in patients with mCRC. Combination of IHC and DISH of EGFR could identify patients with a tumor response to anti-EGFR antibody in patients that are all WT for KRAS, NRAS, BRAF, and PIK3CA.
    Type of Medium: Online Resource
    ISSN: 0732-183X , 1527-7755
    URL: Article
    DOI: 10.1200/jco.2012.30.15_suppl.e14126
    RVK:
    XA 52760
    RVK:
    XA 10000
    Language: English
    Publisher: American Society of Clinical Oncology (ASCO)
    Publication Date: 2012
    detail.hit.zdb_id: 2005181-5
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  • 9
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    Neoadjuvant capecitabine and oxaliplatin (XELOX) with bevacizumab for locally advanced rectal cancer.
    American Society of Clinical Oncology (ASCO) ; 2013
    In:  Journal of Clinical Oncology Vol. 31, No. 4_suppl ( 2013-02-01), p. 566-566
    Details
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 31, No. 4_suppl ( 2013-02-01), p. 566-566
    Abstract: 566 Background: Chemoradiotherapy (CRT) followed by surgery is a standard treatment for locally advanced rectal cancer. Although preoperative CRT decreases local recurrence (LR), pelvic radiation is associated with long-term morbidity. We conducted this study to evaluate the feasibility of neoadjuvant XELOX with bevacizumab (Bmab) in patients (pts) with locally advanced rectal cancer. Methods: Pts with T4 or lymph node (LN) positive rectal cancer were treated with 3 cycles of XELOX with Bmab and one additional cycle of XELOX. Total mesorectal excision was performed 3-8 weeks after the last chemotherapy. The primary endpoint was to assess feasibility and secondary endpoints were R0 resection rate, down staging rate, pathological complete response (pCR) rate and pathological effect over grade 2 (tumor cell death in more than two-thirds of the entire lesion). Results: Twenty five pts were recruited between December 2009 and November 2011. Characteristics of pts were as the following: male/female, 18/7; median age, 63 years (range, 37-75); median diameter of tumor, 52.8mm (range, 38.3-110); T2-T3/T4a/T4b, 7/8/10 and N0/N1/N2, 3/14/8. In 4% of the pts (7 pts), following grade 3-4 adverse events occurred; neutropenia, hypertension, bleeding, rectal obstruction, pelvic infection, anorexia and nausea. The down staging rate of T2-T3/T4a/T4b and N1/N2 were 29/63/50 % and 86/63 %, respectively. Seven pts (28%) discontinued the treatment after 2-3 cycles of XELOX with Bmab (13% in T2-T4a, 50% in T4b). The rate of conducting surgery was 92% and all of them had R0 resections. Postoperative complications were found in 9 pts (39%). The pCR rate was 4%, and the rate of pathological effect over grade 2 was 61%. Two LR (LN positive) and two distant recurrences (1 lung, 1 liver) were reported. Conclusions: XELOX with Bmab followed by surgery was safely performed for locally advanced rectal cancer. The down staging rate was 50% even in T4b pts although half of T4b pts discontinued the study treatment. Based on these preliminary results, we are planning a phase II trial of perioperative XELOX and surgery in locally advanced rectal cancer. Clinical trial information: 000003219.
    Type of Medium: Online Resource
    ISSN: 0732-183X , 1527-7755
    URL: Article
    DOI: 10.1200/jco.2013.31.4_suppl.566
    RVK:
    XA 52760
    RVK:
    XA 10000
    Language: English
    Publisher: American Society of Clinical Oncology (ASCO)
    Publication Date: 2013
    detail.hit.zdb_id: 2005181-5
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  • 10
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    Interaction between visfatin and resistin and the risk of colorectal adenoma.
    American Society of Clinical Oncology (ASCO) ; 2014
    In:  Journal of Clinical Oncology Vol. 32, No. 3_suppl ( 2014-01-20), p. 438-438
    Details
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 32, No. 3_suppl ( 2014-01-20), p. 438-438
    Abstract: 438 Background: Colorectal adenoma is a well-established precursor lesion of colorectal cancer, so the prevention of adenoma may also contribute to the prevention of cancer. Adipocyte secretes hormones, namely adipocytokines, some of which are likely to be associated with malignancies such as colorectal, breast, and prostate gland cancer. Among several adipocytokines, resistin and visfatin have been suggested to be associated with the progression of colon cancer, and they could therefore be good biomarkers for colorectal adenoma and cancer. Methods: Prior to any procedures, healthy volunteers provided their venous blood, from which we obtained the plasma to measure concentrations of adiponectin, visfatin, and resistin. We underwent total colonoscopy, and identified 776 adenoma cases (522 males, 254 females), 734 controls (478 males, 256 females) were selected from those without adenoma. An unconditional logistic regression model was used to estimate odds ratios for colorectal adenoma after adjustment for potential confounders, including body mass index (BMI). Results: We found no positive association between the presence of colorectal adenoma and the levels of either visfatin (P trend: male 0.24, female 0.87), or resistin (P trend: male 0.85, female 0.71). After adjusting for potential confounders, we still saw no association. On the other hand, adiponectin levels showed a correlation with both BMI (P: male 〈 0.0001, female 0.0007) and the volume of fat. Furthermore, adiponectin levels indicated no positive correlation with visfatin (P: male 0.656, female 0.1445) or resistin (P: male 0.2116, female 0.1352). Conclusions: In this study, no association was observed between visfatin/resistin levels and colorectal adenoma, and they showed no positive correlation with BMI or the volume of intra-abdominal fat. However, other confounders may account for these results, so we plan to conduct further differential analyses.
    Type of Medium: Online Resource
    ISSN: 0732-183X , 1527-7755
    URL: Article
    DOI: 10.1200/jco.2014.32.3_suppl.438
    RVK:
    XA 52760
    RVK:
    XA 10000
    Language: English
    Publisher: American Society of Clinical Oncology (ASCO)
    Publication Date: 2014
    detail.hit.zdb_id: 2005181-5
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