501. Sorafenib plus intensive chemotherapy in newly diagnosed FLT3-ITD AML: a randomized, placebo-controlled study by the ALLG.
作者: Sun Loo.;Andrew W Roberts.;Natasha S Anstee.;Glen A Kennedy.;Simon He.;Anthony P Schwarer.;Anoop K Enjeti.;James D'Rozario.;Paula Marlton.;Ian A Bilmon.;John Taper.;Gavin Cull.;Campbell Tiley.;Emma Verner.;Uwe Hahn.;Devendra K Hiwase.;Harry J Iland.;Nick Murphy.;Sundra Ramanathan.;John Reynolds.;Doen Ming Ong.;Ing Soo Tiong.;Meaghan Wall.;Michael Murray.;Tristan Rawling.;Joanna Leadbetter.;Leesa Rowley.;Maya Latimer.;Sam Yuen.;Stephen B Ting.;Chun Yew Fong.;Kirk Morris.;Ashish Bajel.;John F Seymour.;Mark J Levis.;Andrew H Wei.
来源: Blood. 2023年142卷23期1960-1971页
Sorafenib maintenance improves outcomes after hematopoietic cell transplant (HCT) for patients with FMS-like tyrosine kinase 3-internal tandem duplication (FLT3-ITD) acute myeloid leukemia (AML). Although promising outcomes have been reported for sorafenib plus intensive chemotherapy, randomized data are limited. This placebo-controlled, phase 2 study (ACTRN12611001112954) randomized 102 patients (aged 18-65 years) 2:1 to sorafenib vs placebo (days 4-10) combined with intensive induction: idarubicin 12 mg/m2 on days 1 to 3 plus either cytarabine 1.5 g/m2 twice daily on days 1, 3, 5, and 7 (18-55 years) or 100 mg/m2 on days 1 to 7 (56-65 years), followed by consolidation and maintenance therapy for 12 months (post-HCT excluded) in newly diagnosed patients with FLT3-ITD AML. Four patients were excluded in a modified intention-to-treat final analysis (3 not commencing therapy and 1 was FLT3-ITD negative). Rates of complete remission (CR)/CR with incomplete hematologic recovery were high in both arms (sorafenib, 78%/9%; placebo, 70%/24%). With 49.1-months median follow-up, the primary end point of event-free survival (EFS) was not improved by sorafenib (2-year EFS 47.9% vs 45.4%; hazard ratio [HR], 0.87; 95% confidence interval [CI], 0.51-1.51; P = .61). Two-year overall survival (OS) was 67% in the sorafenib arm and 58% in the placebo arm (HR, 0.76; 95% CI, 0.42-1.39). For patients who received HCT in first remission, the 2-year OS rates were 84% and 67% in the sorafenib and placebo arms, respectively (HR, 0.45; 95% CI, 0.18-1.12; P = .08). In exploratory analyses, FLT3-ITD measurable residual disease (MRD) negative status (<0.001%) after induction was associated with improved 2-year OS (83% vs 60%; HR, 0.4; 95% CI, 0.17-0.93; P = .028). In conclusion, routine use of pretransplant sorafenib plus chemotherapy in unselected patients with FLT3-ITD AML is not supported by this study.
502. Nimotuzumab Plus Gemcitabine for K-Ras Wild-Type Locally Advanced or Metastatic Pancreatic Cancer.
作者: Shukui Qin.;Jin Li.;Yuxian Bai.;Zishu Wang.;Zhendong Chen.;Ruihua Xu.;Jianming Xu.;Hongmei Zhang.;Jia Chen.;Ying Yuan.;Tianshu Liu.;Lin Yang.;Haijun Zhong.;Donghui Chen.;Lin Shen.;Chunyi Hao.;Deliang Fu.;Ying Cheng.;Jianwei Yang.;Qiong Wang.;Baoli Qin.;Hongming Pan.;Jun Zhang.;Xianhong Bai.;Qingshan Zheng.
来源: J Clin Oncol. 2023年41卷33期5163-5173页
In a phase IIb trial of nimotuzumab plus gemcitabine, substantial clinical benefits were observed in patients with locally advanced or metastatic pancreatic cancer (PC). Therefore, we conducted a phase III clinical study to verify the efficacy and safety of this combination regimen in patients with K-Ras wild-type tumors (ClinicalTrials.gov identifier: NCT02395016).
503. FDA Approval Summary: Dabrafenib in Combination with Trametinib for BRAFV600E Mutation-Positive Low-Grade Glioma.
作者: Michael I Barbato.;Jeannette Nashed.;Diana Bradford.;Yi Ren.;Sachia Khasar.;Claudia P Miller.;Banu S Zolnik.;Hong Zhao.;Yangbing Li.;Youwei Bi.;Stacy S Shord.;Anup K Amatya.;Pallavi S Mishra-Kalyani.;Barbara Scepura.;Raniya A Al-Matari.;Richard Pazdur.;Paul G Kluetz.;Martha Donoghue.;Harpreet Singh.;Nicole Drezner.
来源: Clin Cancer Res. 2024年30卷2期263-268页
On March 16, 2023, the FDA approved dabrafenib in combination with trametinib (Tafinlar, Mekinist; Novartis Pharmaceuticals Corporation) for the treatment of pediatric patients with low-grade glioma (LGG) with a BRAFV600E mutation who require systemic therapy. FDA also approved oral formulations of both drugs suitable for patients who cannot swallow pills. This approval was based on the LGG cohort from study CDRB436G2201 (NCT02684058), a multicenter, open-label trial in which pediatric patients with LGG with a BRAFV600E mutation were randomly assigned 2:1 to dabrafenib plus trametinib (D+T) or carboplatin plus vincristine (C+V). The overall response rate (ORR) by independent review based on Response Assessment in Neuro-oncology LGG (2017) criteria was assessed in 110 patients randomly assigned to D+T (n = 73) or C+V (n = 37). ORR was 47% [95% confidence interval (CI), 35-59] in the D+T arm and 11% (95% CI, 3.0-25) in the C+V arm. Duration of response (DOR) was 23.7 months (95% CI, 14.5-NE) in the D+T arm and not estimable (95% CI, 6.6- NE) in the C+V arm. Progression-free survival (PFS) was 20.1 months (95% CI: 12.8, NE) and 7.4 months (95% CI, 3.6- 11.8) [HR, 0.31 (95% CI, 0.17-0.55); P < 0.001] in the D+T and C+V arms, respectively. The most common (>20%) adverse reactions were pyrexia, rash, headache, vomiting, musculoskeletal pain, fatigue, diarrhea, dry skin, nausea, hemorrhage, abdominal pain, and dermatitis acneiform. This represents the first FDA approval of a systemic therapy for the first-line treatment of pediatric patients with LGG with a BRAFV600E mutation.
504. Theory-based behavior change intervention to increase uptake of risk-reducing salpingo-oophorectomy in women with a BRCA1 or BRCA2 pathogenic variant: The PREVENT randomized controlled trial.
作者: Kelly A Metcalfe.;Tuya Pal.;Steven A Narod.;Susan Armel.;Salma Shickh.;Kathleen Buckley.;Scott T Walters.;Sarah Brennenstuhl.;Anita Y Kinney.
来源: Cancer Med. 2023年12卷17期18246-18257页
To evaluate the effect of a theory-based behavioral intervention delivered by genetic counselors on the uptake of risk-reducing salpingo-oophorectomy (RRSO) at 12 and 24 months by women with a BRCA1 or BRCA2 pathogenic variant (PV) compared to women who received usual care.
505. Neratinib + fulvestrant + trastuzumab for HR-positive, HER2-negative, HER2-mutant metastatic breast cancer: outcomes and biomarker analysis from the SUMMIT trial.
作者: K Jhaveri.;L D Eli.;H Wildiers.;S A Hurvitz.;A Guerrero-Zotano.;N Unni.;A Brufsky.;H Park.;J Waisman.;E S Yang.;I Spanggaard.;S Reid.;M E Burkard.;S Vinayak.;A Prat.;M Arnedos.;F-C Bidard.;S Loi.;J Crown.;M Bhave.;S A Piha-Paul.;J M Suga.;S Chia.;C Saura.;J Á Garcia-Saenz.;V Gambardella.;M J de Miguel.;E N Gal-Yam.;A Rapael.;S M Stemmer.;C Ma.;A B Hanker.;D Ye.;J W Goldman.;R Bose.;L Peterson.;J S K Bell.;A Frazier.;D DiPrimeo.;A Wong.;C L Arteaga.;D B Solit.
来源: Ann Oncol. 2023年34卷10期885-898页
HER2 mutations are targetable alterations in patients with hormone receptor-positive (HR+) metastatic breast cancer (MBC). In the SUMMIT basket study, patients with HER2-mutant MBC received neratinib monotherapy, neratinib + fulvestrant, or neratinib + fulvestrant + trastuzumab (N + F + T). We report results from 71 patients with HR+, HER2-mutant MBC, including 21 (seven in each arm) from a randomized substudy of fulvestrant versus fulvestrant + trastuzumab (F + T) versus N + F + T.
506. A novel super-enhancer-related gene signature predicts prognosis and immune microenvironment for breast cancer.
This study targeted at developing a robust, prognostic signature based on super-enhancer-related genes (SERGs) to reveal survival prognosis and immune microenvironment of breast cancer.
507. Envonalkib versus crizotinib for treatment-naive ALK-positive non-small cell lung cancer: a randomized, multicenter, open-label, phase III trial.
作者: Yunpeng Yang.;Jie Min.;Nong Yang.;Qitao Yu.;Ying Cheng.;Yanqiu Zhao.;Manxiang Li.;Hong Chen.;Shou'an Ren.;Jianying Zhou.;Wu Zhuang.;Xintian Qin.;Lejie Cao.;Yan Yu.;Jian Zhang.;Jianxing He.;Jifeng Feng.;Hao Yu.;Li Zhang.;Wenfeng Fang.
来源: Signal Transduct Target Ther. 2023年8卷1期301页
Anaplastic lymphoma kinase (ALK) rearrangements are present in about 5-6% of non-small cell lung cancer (NSCLC) cases and associated with increased risks of central nervous system (CNS) involvement. Envonalkib, a novel ALK inhibitor, demonstrated promising anti-tumor activity and safety in advanced ALK-positive NSCLC in the first-in-human phase I study. This phase III trial (ClinicalTrials.gov NCT04009317) investigated the efficacy and safety of first-line envonalkib in advanced ALK-positive NSCLC cases. Totally 264 participants were randomized 1:1 to receive envonalkib (n = 131) or crizotinib (n = 133). Median independent review committee (IRC)-assessed progression-free survival (PFS) times were 24.87 (95% confidence interval [CI]: 15.64-30.36) and 11.60 (95% CI: 8.28-13.73) months in the envonalkib and crizotinib groups, respectively (hazard ratio [HR] = 0.47, 95% CI: 0.34-0.64, p < 0.0001). IRC-assessed confirmed objective response rate (ORR) was higher (81.68% vs. 70.68%, p = 0.056) and duration of response was longer (median, 25.79 [95% CI, 16.53-29.47] vs. 11.14 [95% CI, 9.23-16.59] months, p = 0.0003) in the envonalkib group compared with the crizotinib group. In participants with baseline brain target lesions, IRC-assessed CNS-ORR was improved with envonalkib compared with crizotinib (78.95% vs. 23.81%). Overall survival (OS) data were immature, and median OS was not reached in either group (HR = 0.84, 95% CI: 0.48-1.47, p = 0.5741). The 12-month OS rates were 90.6% (95% CI, 84.0%-94.5%) and 89.4% (95% CI, 82.8%-93.6%) in the envonalkib and crizotinib groups, respectively. Grade ≥3 treatment-related adverse events were observed in 55.73% and 42.86% of participants in the envonalkib and crizotinib groups, respectively. Envonalkib significantly improved PFS and delayed brain metastasis progression in advanced ALK-positive NSCLC.
508. Brigatinib Versus Alectinib in ALK-Positive NSCLC After Disease Progression on Crizotinib: Results of Phase 3 ALTA-3 Trial.
作者: James Chih-Hsin Yang.;Geoffrey Liu.;Shun Lu.;Jianxing He.;Mauricio Burotto.;Myung-Ju Ahn.;Dong-Wan Kim.;XiaoQing Liu.;Yanqiu Zhao.;Sylvie Vincent.;Jiani Yin.;Xin Ma.;Huamao M Lin.;Sanjay Popat.
来源: J Thorac Oncol. 2023年18卷12期1743-1755页
This open-label, phase 3 trial (ALTA-3; NCT03596866) compared efficacy and safety of brigatinib versus alectinib for ALK+ NSCLC after disease progression on crizotinib.
509. Prospective validation of VEGF and eNOS polymorphisms as predictors of first-line bevacizumab efficacy in patients with metastatic colorectal cancer.
作者: Giorgia Marisi.;Irene Azzali.;Alessandro Passardi.;Francesca Rebuzzi.;Giulia Bartolini.;Milena Urbini.;Matteo Canale.;Chiara Molinari.;Laura Matteucci.;Francesco Giulio Sullo.;Silvia Angela Debonis.;Chiara Gallio.;Graziana Gallo.;Giovanni Luca Frassineti.;Paola Ulivi.
来源: Sci Rep. 2023年13卷1期12921页
Bevacizumab (Bev) plus chemotherapy is a standard first-line treatment in metastatic colorectal cancer (mCRC), however to date no predictive factors of response have been identified. Results of our previous analysis on patients enrolled in a randomized prospective phase III multicenter study (ITACa study) showed a predictive value of Vascular Endothelial Growth Factor (VEGF) polymorphism (VEGF + 936), a 27-nucleotide variable number tandem repeat (VNTR) of the endothelial nitric oxide synthase (eNOS) gene and eNOS + 894 polymorphism. mCRC patients, treated with Bev plus chemotherapy, were included in this prospective validation trial. eNOS + 894G > T was analyzed by Real time PCR, while the eNOS VNTR and VEGF + 936C > T were determined by standard PCR and direct sequencing analysis. These polymorphisms were assessed in relation to progression-free survival (PFS), overall survival (OS) and objective response rate (ORR). These three polymorphisms were not predictive of PFS (p 0.91, 0.59 and 0.09, respectively), and OS (p 0.95, 0.32 and 0.46, respectively). Moreover, the haplotype analyses did not confirm what was found in our previous study; patients bearing a specific haplotype of eNOS had not significantly improved outcomes. This prospective study failed to validate the predictive impact of eNOS and VEGF polymorphisms for response to Bev plus first-line chemotherapy in mCRC patients.
510. Development of a scoring system for predicting primary resistance to venetoclax plus hypomethylating agents (HMAs) in acute myeloid leukemia patients.
作者: Lihong Zong.;Minyue Yin.;Jinyu Kong.;Jian Zhang.;Baoquan Song.;Jinzhou Zhu.;Shengli Xue.;Xiaojin Wu.;Depei Wu.;Xiebing Bao.;Huiying Qiu.
来源: Mol Carcinog. 2023年62卷10期1572-1584页
In recent years, one of the most promising advances in the treatment of acute myeloid leukemia (AML) is the combination of a hypomethylating agent (HMA) with the BCL2 inhibitor venetoclax (VEN). To better understand the key factors associated with the response of VEN plus HMA, 212 consecutive AML patients were retrospectively recruited to establish and validate a scoring system for predicting the primary resistance to VEN-based induced therapy. All AML patients were divided randomly into a training set (n = 155) and a validation set (n = 57). Factors were selected using a multivariate logistic regression model, including FAB-M5, myelodysplastic syndrome-secondary acute myeloid leukemia (MDS-sAML), RUNX1-RUNX1T1 and FLT3-ITD mutation (FLT3-ITDm). A nomogram was then constructed including all these four predictors. The nomogram both presented a good performance of discrimination and calibration, with a C-index of 0.770 and 0.733 in the training and validation set. Decision curve analysis also indicated that the nomogram was feasible to make beneficial decisions. Eventually a total scoring system of 8 points was developed, which was divided into three risk groups: low-risk (score 0-2), medium-risk (score 3-4), and high-risk (score 5-8). There was a significant difference in the nonremission (NR) rate of these three risk groups (22.8% vs. 60.0% vs. 77.8%, p < 0.001). After adjustment of the other variables, patients in medium- or high-risk groups also presented a worse event-free survival (EFS) than that in the low-risk group (hazard ratio [HR] = 1.62, p = 0.03). In conclusion, we highlighted the response determinants of AML patients receiving a combination therapy of VEN plus HMAs. The scoring system can be used to predict the resistance of VEN, providing better guidance for clinical treatment.
511. First-line nivolumab plus ipilimumab in metastatic non-small cell lung cancer: 5-year outcomes in Japanese patients from CheckMate 227 Part 1.
作者: Makoto Nishio.;Yuichiro Ohe.;Satoshi Ikeda.;Toshihide Yokoyama.;Hidetoshi Hayashi.;Tatsuro Fukuhara.;Yuki Sato.;Hiroshi Tanaka.;Katsuyuki Hotta.;Shunichi Sugawara.;Haruko Daga.;Isamu Okamoto.;Kazuo Kasahara.;Tateaki Naito.;Li Li.;Ravi G Gupta.;Judith Bushong.;Hideaki Mizutani.
来源: Int J Clin Oncol. 2023年28卷10期1354-1368页
In CheckMate 227 Part 1 (NCT02477826), first-line nivolumab plus ipilimumab demonstrated long-term durable overall survival (OS) benefit versus chemotherapy in patients with metastatic non-small cell lung cancer (NSCLC), regardless of tumor programmed death ligand 1 (PD-L1) expression. We report results in Japanese patients with ≥ 5-year follow-up.
512. Establishment and validation of prognostic nomogram in acute leukemia with trisomy 8.
作者: Tianxia Deng.;Sheng Wang.;Zhuonan Ran.;Qiulian Liu.;Mingxia Wang.
来源: Hematology. 2023年28卷1期2240131页
This study aims to construct a nomogram model for predicting poor prognosis in acute leukemia with trisomy 8.
513. The role of triple therapy and therapy sequence in treatment of BRAF-mutant metastatic melanoma. Response to overall survival with first-line atezolizumab in combination with vemurafenib and cobimetinib in BRAFV600 mutation-positive advanced melanoma (IMspire150): second interim analysis of a multicentre, randomised, phase 3 study.
Novel therapies have achieved unprecedented benefit in survival of advanced melanoma patients. While immunotherapy (ICI) can be administered independent of mutational status, BRAF and MEK kinase inhibitors represent another effective treatment option for patients with BRAF mutant melanoma. Given the benefits these therapies demonstrate, the natural instinct was to combine. Three studies have investigated the benefit of combination of ICI using anti-PD-1 or anti-PD-L1 antibody and targeted therapy (TT) with BRAF and MEK inhibitors over TT and placebo. Among these studies, statistically significantly superior duration of response was observed, however overall and progression-free survival were only numerically superior, if at all. One triple combination was approved for BRAF mutant metastatic melanoma; however, the expected synergistic effect of triple therapy could not be universally confirmed and the observed benefits with triple seem to depend on statistical considerations rather than a biological reason. As patients with BRAF mutant melanoma have both ICI and TT as their first-line treatment options, the question whether the sequence matters was addressed. Two prospective trials compared first-line ICI, followed by TT at progression, or vice-versa, with additional "sandwich" approach (8 weeks of TT followed by ICI until progression, then TT again) in the Secombit study. The benefit of first-line ICI was demonstrated in both studies with Secombit study showing the "sandwich" approach to have similar effect. Current data advices for immunotherapy based regiments in patients with BRAF mutant melanoma or, possibly, sandwich approach. Whether triple therapy is superior to ICI monotherapy still needs to be addressed considering not only efficacy, but also safety.
514. Predicting BRAFV600E mutations in papillary thyroid carcinoma using six machine learning algorithms based on ultrasound elastography.
作者: Enock Adjei Agyekum.;Yu-Guo Wang.;Fei-Ju Xu.;Debora Akortia.;Yong-Zhen Ren.;Kevoyne Hakeem Chambers.;Xian Wang.;Jenny Olalia Taupa.;Xiao-Qin Qian.
来源: Sci Rep. 2023年13卷1期12604页
The most common BRAF mutation is thymine (T) to adenine (A) missense mutation in nucleotide 1796 (T1796A, V600E). The BRAFV600E gene encodes a protein-dependent kinase (PDK), which is a key component of the mitogen-activated protein kinase pathway and essential for controlling cell proliferation, differentiation, and death. The BRAFV600E mutation causes PDK to be activated improperly and continuously, resulting in abnormal proliferation and differentiation in PTC. Based on elastography ultrasound (US) radiomic features, this study seeks to create and validate six distinct machine learning algorithms to predict BRAFV6OOE mutation in PTC patients prior to surgery. This study employed routine US strain elastography image data from 138 PTC patients. The patients were separated into two groups: those who did not have the BRAFV600E mutation (n = 75) and those who did have the mutation (n = 63). The patients were randomly assigned to one of two data sets: training (70%), or validation (30%). From strain elastography US images, a total of 479 radiomic features were retrieved. Pearson's Correlation Coefficient (PCC) and Recursive Feature Elimination (RFE) with stratified tenfold cross-validation were used to decrease the features. Based on selected radiomic features, six machine learning algorithms including support vector machine with the linear kernel (SVM_L), support vector machine with radial basis function kernel (SVM_RBF), logistic regression (LR), Naïve Bayes (NB), K-nearest neighbors (KNN), and linear discriminant analysis (LDA) were compared to predict the possibility of BRAFV600E. The accuracy (ACC), the area under the curve (AUC), sensitivity (SEN), specificity (SPEC), positive predictive value (PPV), negative predictive value (NPV), decision curve analysis (DCA), and calibration curves of the machine learning algorithms were used to evaluate their performance. ① The machine learning algorithms' diagnostic performance depended on 27 radiomic features. ② AUCs for NB, KNN, LDA, LR, SVM_L, and SVM_RBF were 0.80 (95% confidence interval [CI]: 0.65-0.91), 0.87 (95% CI 0.73-0.95), 0.91(95% CI 0.79-0.98), 0.92 (95% CI 0.80-0.98), 0.93 (95% CI 0.80-0.98), and 0.98 (95% CI 0.88-1.00), respectively. ③ There was a significant difference in echogenicity,vertical and horizontal diameter ratios, and elasticity between PTC patients with BRAFV600E and PTC patients without BRAFV600E. Machine learning algorithms based on US elastography radiomic features are capable of predicting the likelihood of BRAFV600E in PTC patients, which can assist physicians in identifying the risk of BRAFV600E in PTC patients. Among the six machine learning algorithms, the support vector machine with radial basis function (SVM_RBF) achieved the best ACC (0.93), AUC (0.98), SEN (0.95), SPEC (0.90), PPV (0.91), and NPV (0.95).
515. Initial Panitumumab Plus Fluorouracil, Leucovorin, and Oxaliplatin or Plus Fluorouracil and Leucovorin in Elderly Patients With RAS and BRAF Wild-Type Metastatic Colorectal Cancer: The PANDA Trial by the GONO Foundation.
作者: Sara Lonardi.;Cosimo Rasola.;Riccardo Lobefaro.;Daniele Rossini.;Vincenzo Formica.;Mario Scartozzi.;Giovanni Luca Frassineti.;Giorgia Boscolo.;Saverio Cinieri.;Samantha Di Donato.;Nicoletta Pella.;Francesca Bergamo.;Alessandra Raimondi.;Ermenegildo Arnoldi.;Lorenzo Antonuzzo.;Cristina Granetto.;Fable Zustovich.;Monica Ronzoni.;Silvana Leo.;Federica Morano.;Fotios Loupakis.;Federica Buggin.;Vittorina Zagonel.;Matteo Fassan.;Chiara Cremolini.;Luca Boni.;Filippo Pietrantonio.; .
来源: J Clin Oncol. 2023年41卷34期5263-5273页
To verify whether both doublet chemotherapy with a modified schedule of fluorouracil, leucovorin, and oxaliplatin (mFOLFOX) and monochemotherapy with fluorouracil plus leucovorin (5-FU + LV) achieve satisfactory efficacy when both regimens are combined with panitumumab (PAN) as initial treatment of elderly patients with RAS/BRAF wild-type metastatic colorectal cancer (mCRC).
516. Ethical, legal, and social implications (ELSI) and challenges in the design of a randomized controlled trial to test the online return of cancer genetic research results to U.S. Black women.
作者: Catharine Wang.;Kimberly A Bertrand.;Michelle Trevino-Talbot.;Maureen Flynn.;Maggie Ruderman.;Howard J Cabral.;Deborah J Bowen.;Chanita Hughes-Halbert.;Julie R Palmer.
来源: Contemp Clin Trials. 2023年132卷107309页
A central challenge to precision medicine research efforts is the return of genetic research results in a manner that is effective, ethical, and efficient. Formal tests of alternate modalities are needed, particularly for racially marginalized populations that have historically been underserved in this context.
517. Contribution of MEK Inhibition to BRAF/MEK Inhibitor Combination Treatment of BRAF-Mutant Melanoma: Part 2 of the Randomized, Open-Label, Phase III COLUMBUS Trial.
作者: Paolo A Ascierto.;Reinhard Dummer.;Helen J Gogas.;Ana Arance.;Mario Mandala.;Gabriella Liszkay.;Claus Garbe.;Dirk Schadendorf.;Ivana Krajsova.;Ralf Gutzmer.;Vanna Chiarion-Sileni.;Caroline Dutriaux.;Jan Willem B de Groot.;Naoya Yamazaki.;Carmen Loquai.;Caroline Robert.;Keith T Flaherty.
来源: J Clin Oncol. 2023年41卷29期4621-4631页
In COLUMBUS part 1, patients with advanced BRAFV600-mutant melanoma were randomly assigned 1:1:1 to encorafenib 450 mg once daily plus binimetinib 45 mg twice a day (COMBO450), vemurafenib 960 mg twice a day, or encorafenib 300 mg once daily (ENCO300). As previously reported, COMBO450 improved progression-free survival (PFS) versus vemurafenib (part 1 primary end point) and ENCO300 (part 1 key secondary end point; not statistically significant). Part 2, requested by the US Food and Drug Administration, evaluated the contribution of binimetinib by maintaining the same encorafenib dosage in the combination (encorafenib 300 mg once daily plus binimetinib 45 mg twice daily [COMBO300]) and ENCO300 arms.
518. Evidence for a causal relationship between psoriasis and cutaneous melanoma: a bidirectional two-sample Mendelian randomized study.
作者: Nana Zhao.;Pengsen Guo.;Mei Tang.;Fan Yang.;Tongtong Zhang.;Rui Mao.
来源: Front Immunol. 2023年14卷1201167页
Existing cross-sectional and retrospective studies were unable to establish a causal relationship between psoriasis and cutaneous melanoma (CM). We sought to evaluate the causal role between psoriasis and CM.
519. Prognostic Markers of DNA Methylation and Next-Generation Sequencing in Progressive Glioblastoma from the EORTC-26101 Trial.
作者: Tobias Kessler.;Daniel Schrimpf.;Laura Doerner.;Ling Hai.;Leon D Kaulen.;Jakob Ito.;Martin van den Bent.;Martin Taphoorn.;Alba A Brandes.;Ahmed Idbaih.;Julien Dômont.;Paul M Clement.;Mario Campone.;Martin Bendszus.;Andreas von Deimling.;Felix Sahm.;Michael Platten.;Wolfgang Wick.;Antje Wick.
来源: Clin Cancer Res. 2023年29卷19期3892-3900页
The EORTC-26101 study was a randomized phase II and III clinical trial of bevacizumab in combination with lomustine versus lomustine alone in progressive glioblastoma. Other than for progression-free survival (PFS), there was no benefit from addition of bevacizumab for overall survival (OS). However, molecular data allow for the rare opportunity to assess prognostic biomarkers from primary surgery for their impact in progressive glioblastoma.
520. [Radiomics-based prediction of microsatellite instability in stage Ⅱ and Ⅲ rectal cancer patients based on T2WI MRI and diffusion-weighted imaging].
作者: S Xiang.;L B Zheng.;L Zhu.;Y Gao.;D S Wang.;S L Liu.;S Zhang.;T Y Wang.;Y Lu.
来源: Zhonghua Wai Ke Za Zhi. 2023年61卷9期782-787页
Objective: To examine the radiomics model based on high-resolution T2WI and diffusion weighted imaging (DWI) in predicting microsatellite stability in patients with stage Ⅱ and Ⅲ rectal cancer. Methods: From February 2016 to October 2020, 175 patients with stage Ⅱ and Ⅲ rectal cancer who met the inclusion criteria were retrospectively collected. There were 119 males and 56 females, aged (63.9±9.4) years (range: 37 to 85 years), including 152 patients with microsatellite stability and 23 patients with microsatellite instability. All patients were randomly divided into the training group (n=123) and the validation group (n=52) with a ratio of 7∶3. The region of interest was labeled on the T2WI and DWI images of each patient using the ITK-SNAP software, and PyRadiomics was used to extract seven kinds of radiomics features. After removing redundant features and normalizing features, the least absolute shrinkage and selection operation were used for feature selection. One clinical model, three radiomics models and one clinical-radiomics model were constructed in the training group based on a support vector machine. The area under receiver operating characteristic curve (AUC), sensitivity, specificity, and accuracy were used to evaluate the performance of the models in the verification group. Results: Three clinical features (age, degree of tumor differentiation, and distance from the lower edge of the tumor to the anal edge) and six radiomics features (two DWI-related features and four T2WI-related features) most related to microsatellite status of rectal cancer patients were selected. The AUC of the clinical-radiomics model in the training group was 0.95. In the validation group, the AUC was 0.81, better than the clinical model (0.68, Z=0.71, P=0.04), and equivalent to the T2WI+DWI model (0.82, Z=0.21, P=0.83). Conclusions: Radiomic features based on preoperative T2WI and DWI were related to microsatellite stability in patients with stage Ⅱ and Ⅲ rectal cancer and showed a high classification efficiency. The model based on the features provided a noninvasive and convenient tool for preoperative determination of microsatellite stability in rectal cancer patients.
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