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  • American Society of Clinical Oncology (ASCO)  (10)
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  • American Society of Clinical Oncology (ASCO)  (10)
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  • 1
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 39, No. 1 ( 2021-01-01), p. 66-78
    Abstract: As cancer surgery restarts after the first COVID-19 wave, health care providers urgently require data to determine where elective surgery is best performed. This study aimed to determine whether COVID-19–free surgical pathways were associated with lower postoperative pulmonary complication rates compared with hospitals with no defined pathway. PATIENTS AND METHODS This international, multicenter cohort study included patients who underwent elective surgery for 10 solid cancer types without preoperative suspicion of SARS-CoV-2. Participating hospitals included patients from local emergence of SARS-CoV-2 until April 19, 2020. At the time of surgery, hospitals were defined as having a COVID-19–free surgical pathway (complete segregation of the operating theater, critical care, and inpatient ward areas) or no defined pathway (incomplete or no segregation, areas shared with patients with COVID-19). The primary outcome was 30-day postoperative pulmonary complications (pneumonia, acute respiratory distress syndrome, unexpected ventilation). RESULTS Of 9,171 patients from 447 hospitals in 55 countries, 2,481 were operated on in COVID-19–free surgical pathways. Patients who underwent surgery within COVID-19–free surgical pathways were younger with fewer comorbidities than those in hospitals with no defined pathway but with similar proportions of major surgery. After adjustment, pulmonary complication rates were lower with COVID-19–free surgical pathways (2.2% v 4.9%; adjusted odds ratio [aOR], 0.62; 95% CI, 0.44 to 0.86). This was consistent in sensitivity analyses for low-risk patients (American Society of Anesthesiologists grade 1/2), propensity score–matched models, and patients with negative SARS-CoV-2 preoperative tests. The postoperative SARS-CoV-2 infection rate was also lower in COVID-19–free surgical pathways (2.1% v 3.6%; aOR, 0.53; 95% CI, 0.36 to 0.76). CONCLUSION Within available resources, dedicated COVID-19–free surgical pathways should be established to provide safe elective cancer surgery during current and before future SARS-CoV-2 outbreaks.
    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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  • 2
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 35, No. 33 ( 2017-11-20), p. 3737-3744
    Abstract: The primary purposes of eligibility criteria are to protect the safety of trial participants and define the trial population. Excessive or overly restrictive eligibility criteria can slow trial accrual, jeopardize the generalizability of results, and limit understanding of the intervention’s benefit-risk profile. Methods ASCO, Friends of Cancer Research, and the US Food and Drug Administration examined specific eligibility criteria (ie, brain metastases, minimum age, HIV infection, and organ dysfunction and prior and concurrent malignancies) to determine whether to modify definitions to extend trials to a broader population. Working groups developed consensus recommendations based on review of evidence, consideration of the patient population, and consultation with the research community. Results Patients with treated or clinically stable brain metastases should be routinely included in trials and only excluded if there is compelling rationale. In initial dose-finding trials, pediatric-specific cohorts should be included based on strong scientific rationale for benefit. Later phase trials in diseases that span adult and pediatric populations should include patients older than age 12 years. HIV-infected patients who are healthy and have low risk of AIDS-related outcomes should be included absent specific rationale for exclusion. Renal function criteria should enable liberal creatinine clearance, unless the investigational agent involves renal excretion. Patients with prior or concurrent malignancies should be included, especially when the risk of the malignancy interfering with either safety or efficacy endpoints is very low. Conclusion To maximize generalizability of results, trial enrollment criteria should strive for inclusiveness. Rationale for excluding patients should be clearly articulated and reflect expected toxicities associated with the therapy under investigation.
    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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  • 3
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 27, No. 15_suppl ( 2009-05-20), p. 5562-5562
    Abstract: 5562 Background: Experimental and clinical data (Gifford et al, Clin Cancer Res. 2004) indicate the potential importance of methylation in mediating resistance to carboplatin in ovarian cancer. A previous phase I trial (Appleton et al, J Clin Oncol. 2007) established the feasibility of combining carboplatin with the demethylating agent decitabine on a day 1 + 8 q4 weekly (w) schedule and PD data provided evidence of target cell demethylation. Methods: Patients (pt) with ovarian cancer relapsing 6–12 months following first line treatment were randomised to receive either 6 cycles of carboplatin AUC 6 q4 w (Arm A), or 90 mg/m 2 decitabine as a 6 hour infusion on day 1 and carboplatin AUC 6 on day 8 q4 w (Arm B). The primary endpoint was response rate. An interim analysis was planned after 11 patients were enrolled into Arm B. Results: 29 pt were enrolled. After the first 4 pt had been treated (at 90 mg/m 2 decitabine) the frequency of dose delays due to neutropenia was considered unacceptable, and therefore the starting dose of decitabine was reduced to 45 mg/m 2 for the subsequent 11 pt. 7 out of 14 pt in Arm A completed 6 cycles compared with 0 of 11 in Arm B (at 45 mg/m 2 decitabine). Grade 2/3 hypersensitivity reactions were more common in Arm B than Arm A (64% vs. 21%), as were prolonged treatment delays due to neutropenia (36% vs. 10%). At the interim analysis, in the 11 pt treated with 45mg/m 2 (Arm B), there were no RECIST responses, while 2 pt had short-lived CA125 responses (59 and 63 days). In contrast 6 of 14 patients in Arm A had RECIST responses consistent with the expected efficacy of carboplatin in this population. Conclusions: The lack of efficacy, as well as the difficulties in treatment delivery in Arm B, led the project team to conclude that the study should be closed. With this dose and schedule, decitabine is ineffective in reversing carboplatin resistance. Further investigations are ongoing to understand (a) the apparent increased incidence of hypersensitivity and (b) the trend towards reduced efficacy in Arm B. [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: 2009
    detail.hit.zdb_id: 2005181-5
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  • 4
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 34, No. 36 ( 2016-12-20), p. 4381-4389
    Abstract: Blinatumomab is a bispecific T-cell engager antibody construct targeting CD19 on B-cell lymphoblasts. We evaluated the safety, pharmacokinetics, recommended dosage, and potential for efficacy of blinatumomab in children with relapsed/refractory B-cell precursor acute lymphoblastic leukemia (BCP-ALL). Methods This open-label study enrolled children 〈 18 years old with relapsed/refractory BCP-ALL in a phase I dosage-escalation part and a phase II part, using 6-week treatment cycles. Primary end points were maximum-tolerated dosage (phase I) and complete remission rate within the first two cycles (phase II). Results We treated 49 patients in phase I and 44 patients in phase II. Four patients had dose-limiting toxicities in cycle 1 (phase I). Three experienced grade 4 cytokine-release syndrome (one attributed to grade 5 cardiac failure); one had fatal respiratory failure. The maximum-tolerated dosage was 15 µg/m 2 /d. Blinatumomab pharmacokinetics was linear across dosage levels and consistent among age groups. On the basis of the phase I data, the recommended blinatumomab dosage for children with relapsed/refractory ALL was 5 µg/m 2 /d for the first 7 days, followed by 15 µg/m 2 /d thereafter. Among the 70 patients who received the recommended dosage, 27 (39%; 95% CI, 27% to 51%) achieved complete remission within the first two cycles, 14 (52%) of whom achieved complete minimal residual disease response. The most frequent grade ≥ 3 adverse events were anemia (36%), thrombocytopenia (21%), and hypokalemia (17%). Three patients (4%) and one patient (1%) had cytokine-release syndrome of grade 3 and 4, respectively. Two patients (3%) interrupted treatment after grade 2 seizures. Conclusion This trial, which to the best of our knowledge was the first such trial in pediatrics, demonstrated antileukemic activity of single-agent blinatumomab with complete minimal residual disease response in children with relapsed/refractory BCP-ALL. Blinatumomab may represent an important new treatment option in this setting, requiring further investigation in curative indications.
    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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  • 5
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 31, No. 15_suppl ( 2013-05-20), p. 3036-3036
    Abstract: 3036 Background: Ipilimumab, a CTLA4 blocking antibody, has been shown to improve survival in metastatic melanoma patients in phase III trials. However, only a subset of patients experiences long-term survival benefit. Therefore, we analysed two independent retrospective sets of patients treated in ‘real world’ settings to identify prognostic factors that correlate with better outcome after ipilimumab therapy. Methods: Advanced melanoma patients, eligible for ipilimumab therapy, were treated in the Dutch and UK Expanded Access Programs (EAP) and after European licensing on the 3mg/kg schedule. Baseline characteristics and peripheral blood parameters were assessed and patients were monitored for the occurrence of adverse events and responses. Results: A total of 166 patients were enrolled in the Dutch EAP. Best overall response rate and disease control rate were (DCR) 17% and 35%. Median follow-up was 17.9 months, with a median progression free survival of 2.9 months. Median overall survival (OS) was 7.5 months, and OS at 1 year 37.8% and at 2 years 22.9%. Univariate analysis revealed that gender, age, Breslow thickness, baseline and week 6 lymphocyte count (ALC), and prior treatment had no influence on OS, while mWHO, M stage, baseline LDH, S100, erythrocyte sedimentation rate (ESR), and the slope of ALC did. In a multivariate model only baseline LDH and ESR remained as significant independent prognostic factors. The relevance of LDH was validated in an independent cohort of 68 patients from the UK. Stratifying the patients in the NL cohort according to LDH levels (≤upper limit normal (ULN), 54.4% of patients versus 〉 2xULN, 16.9% of patients) separated into groups of patients observing DCR of 48% versus 14%, and median OS of 13.7 versus 3.1 months, while toxicity was similar in both groups (48% and 41%). None of the patients was alive at 15 months after treatment if baseline LDH was 〉 2xULN in both the NL and UK cohorts. Conclusions: Overall survival upon ipilimumab treatment is lower in an expanded access population as compared to phase III trials. LDH 〉 2xULN at baseline is a potential prognosticator in patients receiving ipilimumab and should be considered in guiding ipilimumab treatment initiation.
    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: 2013
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  • 6
    Online Resource
    Online Resource
    American Society of Clinical Oncology (ASCO) ; 2004
    In:  Journal of Clinical Oncology Vol. 22, No. 14_suppl ( 2004-07-15), p. 5017-5017
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 22, No. 14_suppl ( 2004-07-15), p. 5017-5017
    Type of Medium: Online Resource
    ISSN: 0732-183X , 1527-7755
    RVK:
    RVK:
    Language: English
    Publisher: American Society of Clinical Oncology (ASCO)
    Publication Date: 2004
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  • 7
    Online Resource
    Online Resource
    American Society of Clinical Oncology (ASCO) ; 2004
    In:  Journal of Clinical Oncology Vol. 22, No. 14_suppl ( 2004-07-15), p. 5017-5017
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 22, No. 14_suppl ( 2004-07-15), p. 5017-5017
    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: 2004
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  • 8
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 25, No. 18_suppl ( 2007-06-20), p. 5560-5560
    Abstract: 5560 Background: We previously reported on the feasibility of a combination of erlotinib (E; a HER1/EGFR tyrosine-kinase inhibitor) with platinum and taxane chemotherapy (Agarwal et al, Ann Oncol 2004) and reported that almost 1/3rd patients (pts) stopped E during treatment due to toxicities which included intolerable rash, diarrhea and neutropenic sepsis. This update reports on those pts who then received E at 150mg daily as maintenance treatment. Methods: 48 pts initially received docetaxel (75 mg/m 2 ) and carboplatin (AUC 5) following surgery q21d for 6 cycles in combination with daily oral E (50–100 mg) in dose-escalating cohorts. After 6 cycles, pts could continue with E alone (150mg/d) until progression. Results: 27 pts (56%) continued E beyond chemotherapy for a median of 8.6 months (mo) (range 2.3–32.5 mos), and 23/27 were escalated as planned to daily. Subsequently, 12/27 (44%) pts had their dose either reduced or interrupted for toxicity, which was cutaneous in 10/12 (83%) pts. However, the incidence of = grade 2 toxicity was low apart from alopecia (24%), rash (18%) and fatigue (15%). During follow-up (36 mo) 22/27 (81%) pts stopped E due to progressive disease and 3/27 (11%) stopped E due to cutaneous toxicity. Only 2/27 (7%) pts continue to receive E without evidence of progression, both at doses less than 150mg, again due to cutaneous toxicity. Pts receiving maintenance E had a median progression-free survival of 14.8 mo (95% CI 12.6–17.1 mo) and median overall survival 37.0 mo (95% ci 31.6–42.4 mo); for all pts these figures were 12.5 mo (95% CI 9.1–15.9 mo) respectively, and 37.0 mo (95% ci 27.3–46.7 mo). Conclusions: Maintenance E at 150mg daily following initial treatment with E plus docetaxel-carboplatin for ovarian carcinoma is associated with cutaneous toxicity which limits the dose and duration of treatment in a proportion of pts. The potential benefit of this approach can only be addressed in a randomized trial, and this is now underway under the auspices of the EORTC. A parallel translational study will examine the possibility that patients most likely to benefit can be predicted by molecular tumor analysis. [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: 2007
    detail.hit.zdb_id: 2005181-5
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  • 9
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 41, No. 16_suppl ( 2023-06-01), p. 5001-5001
    Abstract: 5001 Background: Androgen deprivation therapy (ADT) improves survival and reduces risk of metastasis in men with high-risk localized prostate cancer (PC) receiving radiotherapy (RT). Predictive biomarkers are needed to guide ADT duration to maximize benefits and minimize risks. We sought to train and validate the first predictive biomarker for long-term (LT) vs short-term (ST) ADT using multiple phase III NRG Oncology randomized trials. Methods: Pre-treatment prostate biopsy slides were digitized from six phase III NRG/RTOG randomized trials of men receiving RT +/- ADT. The artificial intelligence (AI)-derived clinical and histopathological predictive biomarker was trained on RTOG 9408, 9413, 9902, 9910, and 0521 to predict differential benefit of LTADT on distant metastasis (DM). After the AI biomarker was locked, it was validated on RTOG 9202, which randomized men to RT + STADT (4 mo) vs LTADT (28 mo). The predictive utility of the AI biomarker was evaluated for the primary and secondary endpoints of DM and PC-specific mortality (PCSM), respectively, for ADT duration with Fine-Gray interaction models. Event rates were estimated by the cumulative incidence method. Deaths from other causes were treated as competing risks. Results: The AI-derived biomarker was trained on 2,641 men (median follow-up of 9.8 years, IQR [8.2, 11.5] ) and validated on 1,192 men from RTOG 9202 (median follow-up of 17.2 years, IQR [9.1, 19.6]), where 80% had at least one high/very high (H/VH) risk feature (cT3-4, Gleason 8-10, PSA 〉 20, or primary Gleason pattern 5). Consistent with published results, LTADT significantly improved DM (subdistribution HR [sHR] 0.64, 95% CI 0.50-0.82, p 〈 0.001) in the validation cohort. The AI biomarker was prognostic for DM (sHR 2.35, 95% CI 1.72-3.19, p 〈 0.001). A significant biomarker-treatment interaction was observed (p = 0.04), in which AI-biomarker (+) men (n = 785, 66%) had reduced DM with LTADT (sHR 0.55, 95% CI 0.41-0.73, p 〈 0.001), but no benefit was observed (sHR 1.06, 95% CI 0.61-1.84, p = 0.84) for AI-biomarker (-) men (n = 407, 34%). The 10-year DM rate difference between RT + LTADT vs RT + STADT was 13% in AI-biomarker (+) men vs 2% in AI-biomarker (-) men. Similar trends were observed for PCSM outcomes. Risk classification (NCCN intermediate [n = 221, 43% (+)] vs other H/VH risk [n = 954, 71% (+)] ) was prognostic but not predictive of LTADT benefit. Conclusions: We have successfully validated the first predictive biomarker of LTADT benefit with RT in localized high-risk PC using an AI-derived digital pathology-based platform in the phase III NRG/RTOG 9202 trial. The predictive AI biomarker identified 34% of men that could derive similar benefit with STADT, avoiding the side effects of prolonged ADT, and 43% of intermediate risk men who would benefit from LTADT.
    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: 2023
    detail.hit.zdb_id: 2005181-5
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  • 10
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 25, No. 18_suppl ( 2007-06-20), p. 5578-5578
    Abstract: 5578 Background: We previously explored the feasibility of adding G to C + P in a phase II study, in which 4 cycles of C followed by 4 cycles of concurrent weekly P and G were given (BJC (2004) 91:627–32). Although highly active (med PFS 19.5m), the feasibility of this 1st-line regimen was limited by dyspnea during the weekly P+G phase. The current trial assessed whether the dyspnoea could be ameliorated by altering the schedule. Methods: Untreated FIGO stage Ic-IV OC, FTC and PPC patients (pts) were eligible. Chemotherapy (CTX) consisted of 4 cycles of C (AUC 7) q21 days, followed by 4 cycles of concurrent P (175 mg/m 2 ) d1 and G (1,000 mg/m 2 ) d1 and d8 q21 days. The primary endpoint of the study was the percentage of pts completing the planned 8 cycles of CTX. The planned sample size was 54 pts, based on a one stage single arm study design with 95% power to reject the null hypothesis (completion rate less than 60%), assuming a true completion rate of 80% using one-sided alpha=0.05. Results: All 54 pts were recruited between June 05 and June 06. Details for 44 pts are currently available for the C phase. 38% of these pts had one or more dose reduction (DR), and 68% had dose delays (DD). The commonest reason for DR and DD was neutropenia. Details for 33 pts are currently available for the P+G phase. 27% of these pts had a DR of P and 51% had a DR of G. 71% of pts omitted G on D8, and 64% had a DD. The commonest reasons for DR and DD were neutropenia and thrombocytopenia. Overall, the KM estimate of the percentage completing 8 cycles is 75% (95% CI 61%-89%) based on the current data. Dyspnoea (Grade 2 only) was observed in 4.5% and 3% pts during the C and P+G phases respectively. No significant treatment related CXR changes were observed. The overall response rate was 68% (95% CI 45–86%; 36% CR, 32%PR, 14% SD, 5%PD, 14% NE; n=22). The median follow-up is 7.5 months and the PFS at 8 months is 92% (95% CI 77–97%). Conclusion: This schedule appears to ameliorate the previously observed dyspnoea, while retaining comparable efficacy. The feasibility of this regimen is limited by myelosuppression which could potentially be overcome by: a) reducing the dose of gemcitabine to 750 mg/m 2 , or b) using prophylactic Peg-GCSF. [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: 2007
    detail.hit.zdb_id: 2005181-5
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