441. Fibroblast Growth Factor Receptors and Ligands in Context of Bevacizumab Response in Ovarian Carcinoma: An Exploratory Analysis of AGO-OVAR11/ICON-7.
作者: Sabine Heublein.;Jacobus Pfisterer.;Andreas du Bois.;Michael Anglesio.;Behnaz Aminossadati.;Irfan Bhatti.;Jalid Sehouli.;Pauline Wimberger.;Fabienne Schochter.;Felix Hilpert.;Peter Hillemanns.;Matthias Kalder.;Willibald Schroeder.;Sven Mahner.;Alexander Burges.;Ulrich Canzler.;Martina Gropp-Meier.;Christian Jackisch.;Philipp Harter.;Stefan Kommoss.;Frederik Marmé.
来源: Lab Invest. 2024年104卷4期100321页
With more novel drugs being approved for the treatment of ovarian carcinoma, the question remains to what extent patients benefit from antiangiogenic treatment with bevacizumab, either in combination with poly-(ADP-ribose) polymerase inhibitors or as single-agent maintenance. As fibroblast growth factor receptors and their ligands (FGFRs/FGFs) are key players in angiogenic signaling and have been linked to resistance to several drugs, we investigated the prognostic or predictive potential of FGFs/FGFRs signaling in the context of bevacizumab treatment within the prospective phase III AGO-OVAR11/ICON-7 study. FGFR1, FGFR2, FGFR3, FGFR4, FGF1, and FGF19 gene expressions were determined in 380 ovarian carcinoma tumor samples collected from German centers in the multicenter phase III AGO-OVAR11 trial/ICON-7 trial. All patients received carboplatin and paclitaxel, administered every 3 weeks for 6 cycles, and were randomized to bevacizumab. Expressions of FGFR1, FGFR2, FGF1, and FGF19 were associated with progression-free survival in both uni- and multivariate (FGFR1: HR, 1.6, P < .001; FGFR2: HR, 1.6, P = .002; FGF1: HR, 2.3, P < .001; and FGF19: HR, 0.7; P = .007) analysis. A signature built by FGFR1, FGFR4, and FGF19 defined a subgroup (n = 62) of patients that derived the greatest bevacizumab-associated improvement of progression-free survival (HR, 0.3; P = .004). In this exploratory analysis of a prospective randomized phase III trial, we provide evidence that the expression of FGFRs/FGFs might have independent prognostic values. An FGFR/FGF-based gene signature identified in our study appears to predict long-term benefit from bevacizumab. This observation is hypothesis-generating and requires validation on independent cohorts.
442. Folate deficiency modifies the risk of CIN3+ associated with DNA methylation levels: a nested case-control study from the ASCUS-COL trial.
作者: María C Agudelo.;Samuel Agudelo.;Attila Lorincz.;Arianis Tatiana Ramírez.;Kelly Melisa Castañeda.;Isabel Garcés-Palacio.;Arnold H Zea.;Chandrika Piyathilake.;Gloria Ines Sanchez.
来源: Eur J Nutr. 2024年63卷2期563-572页
To our knowledge, there are very few studies evaluating if the levels of folate modify the risk of cervical intraepithelial neoplasia grade 2 and higher (CIN2+ and CIN3+) associated with the levels of HPV genome methylation, two cofactors related to single carbon metabolism and independently associated with cervical cancer in previous studies. We conducted a case-control study nested in a three-arm randomized clinical pragmatic trial (ASCUS-COL trial) to evaluate the risk of CIN3+ associated with methylation levels according to serum folate concentrations.
443. FDA Approval Summary: Olaparib in Combination With Abiraterone for Treatment of Patients With BRCA-Mutated Metastatic Castration-Resistant Prostate Cancer.
作者: Jaleh Fallah.;Jianjin Xu.;Chana Weinstock.;Michael H Brave.;Erik Bloomquist.;Mallorie H Fiero.;Timothy Schaefer.;Anand Pathak.;Abdelrahmman Abukhdeir.;Vishal Bhatnagar.;Haw-Jyh Chiu.;Tiffany Ricks.;Christy John.;Salaheldin Hamed.;Christal Lee.;William F Pierce.;Shyam Kalavar.;Reena Philip.;Shenghui Tang.;Laleh Amiri-Kordestani.;Richard Pazdur.;Paul G Kluetz.;Daniel Suzman.
来源: J Clin Oncol. 2024年42卷5期605-613页
This article summarizes the US Food and Drug Administration (FDA) review of the data leading to approval of olaparib plus abiraterone for the treatment of patients with deleterious or suspected deleterious BRCA-mutated (BRCAm) metastatic castration-resistant prostate cancer (mCRPC), as determined by an FDA-approved companion diagnostic test.
444. Randomized phase II study of preoperative afatinib in untreated head and neck cancers: predictive and pharmacodynamic biomarkers of activity.
作者: Grégoire Marret.;Stéphane Temam.;Maud Kamal.;Caroline Even.;Jean-Pierre Delord.;Caroline Hoffmann.;Gilles Dolivet.;Olivier Malard.;Jérôme Fayette.;Olivier Capitain.;Sébastien Vergez.;Lionel Geoffrois.;Frédéric Rolland.;Philippe Zrounba.;Laurent Laccourreye.;Esma Saada-Bouzid.;Nicolas Aide.;Valérie Bénavent.;Jerzy Klijianenko.;Constance Lamy.;Elodie Girard.;Sophie Vacher.;Julien Masliah-Planchon.;Leanne de Koning.;Vincent Puard.;Edith Borcoman.;Marta Jimenez.;Ivan Bièche.;Jocelyn Gal.;Christophe Le Tourneau.
来源: Sci Rep. 2023年13卷1期22524页
There is no strong and reliable predictive biomarker in head and neck squamous cell carcinoma (HNSCC) for EGFR inhibitors. We aimed to identify predictive and pharmacodynamic biomarkers of efficacy of afatinib, a pan-HER tyrosine kinase inhibitor, in a window-of-opportunity trial (NCT01415674). Multi-omics analyses were carried out on pre-treatment biopsy and surgical specimen for biological assessment of afatinib activity. Sixty-one treatment-naïve and operable HNSCC patients were randomised to afatinib 40 mg/day for 21-28 days versus no treatment. Afatinib produced a high rate of metabolic response. Responders had a higher expression of pERK1/2 (P = 0.02) and lower expressions of pHER4 (P = 0.03) and pRB1 (P = 0.002) in pre-treatment biopsy compared to non-responders. At the cellular level, responders displayed an enrichment of tumor-infiltrating B cells under afatinib (P = 0.02). At the molecular level, NF-kappa B signaling was over-represented among upregulated genes in non-responders (P < 0.001; FDR = 0.01). Although exploratory, phosphoproteomics-based biomarkers deserve further investigations as predictors of afatinib efficacy.
445. Neoadjuvant Trebananib plus Paclitaxel-based Chemotherapy for Stage II/III Breast Cancer in the Adaptively Randomized I-SPY2 Trial-Efficacy and Biomarker Discovery.
作者: Kathy S Albain.;Christina Yau.;Emanuel F Petricoin.;Denise M Wolf.;Julie E Lang.;A Jo Chien.;Tufia Haddad.;Andres Forero-Torres.;Anne M Wallace.;Henry Kaplan.;Lajos Pusztai.;David Euhus.;Rita Nanda.;Anthony D Elias.;Amy S Clark.;Constantine Godellas.;Judy C Boughey.;Claudine Isaacs.;Debu Tripathy.;Janice Lu.;Rachel L Yung.;Rosa I Gallagher.;Julia D Wulfkuhle.;Lamorna Brown-Swigart.;Gregor Krings.;Yunn Yi Chen.;David A Potter.;Erica Stringer-Reasor.;Sarah Blair.;Smita M Asare.;Amy Wilson.;Gillian L Hirst.;Ruby Singhrao.;Meredith Buxton.;Julia L Clennell.;Ashish Sanil.;Scott Berry.;Adam L Asare.;Jeffrey B Matthews.;Angela M DeMichele.;Nola M Hylton.;Michelle Melisko.;Jane Perlmutter.;Hope S Rugo.;W Fraser Symmans.;Laura J Van't Veer.;Douglas Yee.;Donald A Berry.;Laura J Esserman.
来源: Clin Cancer Res. 2024年30卷4期729-740页
The neutralizing peptibody trebananib prevents angiopoietin-1 and angiopoietin-2 from binding with Tie2 receptors, inhibiting angiogenesis and proliferation. Trebananib was combined with paclitaxel±trastuzumab in the I-SPY2 breast cancer trial.
446. Bioinformatics-based analysis of the relationship between disulfidptosis and prognosis and treatment response in pancreatic cancer.
Tumor formation is closely associated with disulfidptosis, a new form of cell death induced by disulfide stress-induced. The exact mechanism of action of disulfidptosis in pancreatic cancer (PCa) is not clear. This study analyzed the impact of disulfidptosis-related genes (DRGs) on the prognosis of PCa and identified clusters of DRGs, and based on this, a risk score (RS) signature was developed to assess the impact of RS on the prognosis, immune and chemotherapeutic response of PCa patients. Based on transcriptomic data and clinical information from PCa tissue and normal pancreatic tissue samples obtained from the TCGA and GTEx databases, differentially expressed and differentially surviving DRGs in PCa were identified from among 15 DRGs. Two DRGs clusters were identified by consensus clustering by merging the PCa samples in the GSE183795 dataset. Analysis of DRGs clusters about the PCa tumor microenvironment and differential analysis to obtain differential genes between the two DRG clusters. Patients were then randomized into the training and testing sets, and a prognostic prediction signature associated with disulfidptosis was constructed in the training set. Then all samples were divided into high-disulfidptosis-risk (HDR) and low-disulfidptosis-risk (LDR) subgroups based on the RS calculated from the signature. The predictive efficacy of the signature was assessed by survival analysis, nomograms, correlation analysis of clinicopathological characteristics, and the receiver operating characteristic (ROC) curves. To assess differences between different risk subgroups in immune cell infiltration, expression of immune checkpoint molecules, somatic gene mutations, and effectiveness of immunotherapy and chemotherapy. The GSE57495 dataset was used as external validation, reverse transcription-quantitative polymerase chain reaction (RT-qPCR) was used to detect the expression levels of DRGs. A total of 12 DRGs with differential expression and prognosis in PCa were identified, based on which a risk-prognosis signature containing five differentially expressed genes (DEGs) was developed. The signature was a good predictor and an independent risk factor. The nomogram and calibration curve shows the signature's excellent clinical applicability. Functional enrichment analysis showed that RS was associated with tumor and immune-related pathways. RS was strongly associated with the tumor microenvironment, and analysis of response to immunotherapy and chemotherapy suggests that the signature can be used to assess the sensitivity of treatments. External validation further demonstrated the model's efficacy in predicting the prognosis of PCa patients, with RT-qPCR and immunohistochemical maps visualizing the expression of each gene in PCa cell lines and the tissue. Our study is the first to apply the subtyping model of disulfidptosis to PCa and construct a signature based on the disulfidptosis subtype, which can provide an accurate assessment of prognosis, immunotherapy, and chemotherapy response in PCa patients, providing new targets and directions for the prognosis and treatment of PCa.
447. KRAS status predicted by pretreatment MRI radiomics was associated with lung metastasis in locally advanced rectal cancer patients.
作者: Yirong Xiang.;Shuai Li.;Maxiaowei Song.;Hongzhi Wang.;Ke Hu.;Fengwei Wang.;Zhi Wang.;Zhiyong Niu.;Jin Liu.;Yong Cai.;Yongheng Li.;Xianggao Zhu.;Jianhao Geng.;Yangzi Zhang.;Huajing Teng.;Weihu Wang.
来源: BMC Med Imaging. 2023年23卷1期210页
Mutated KRAS may indicate an invasive nature and predict prognosis in locally advanced rectal cancer (LARC). We aimed to establish a radiomic model using pretreatment T2W MRIs to predict KRAS status and explore the association between the KRAS status or model predictions and lung metastasis.
448. Pilot Trial of Streamlined Genetic Education and Traceback Genetic Testing in Prostate Cancer Survivors.
作者: Marc D Schwartz.;Beth N Peshkin.;Claudine Isaacs.;Christopher Grisham.;Nora J Holmes.;Lia J Sorgen.;Sean Collins.;Nancy Dawson.;Colleen McGuire.;Tobechukwu Okobi.;Kelsey Newell.;Kavitha A Kolla.;Veronique Weinstein.
来源: J Natl Compr Canc Netw. 2023年21卷12期1261-1268.e14页
Germline genetic testing is recommended for men with metastatic or high-risk prostate cancer to inform treatment and risk management for other cancers and inform genetic testing in at-risk relatives. However, relatively few patients with prostate cancer undergo genetic testing. Given the low rate of testing and increasing demands on genetic service providers, strategies are needed that reduce barriers to testing while conserving genetic counseling resources. The primary goal of this study was to determine whether a proactive and streamlined "traceback" approach could yield increased genetic testing participation among prostate cancer survivors.
449. Lasofoxifene versus fulvestrant for ER+/HER2- metastatic breast cancer with an ESR1 mutation: results from the randomized, phase II ELAINE 1 trial.
作者: M P Goetz.;N A Bagegni.;G Batist.;A Brufsky.;M A Cristofanilli.;S Damodaran.;B R Daniel.;G F Fleming.;W J Gradishar.;S L Graff.;M T Grosse Perdekamp.;E Hamilton.;S Lavasani.;A Moreno-Aspitia.;T O'Connor.;T J Pluard.;H S Rugo.;S L Sammons.;L S Schwartzberg.;D G Stover.;G A Vidal.;G Wang.;E Warner.;R Yerushalmi.;P V Plourde.;D J Portman.;E N Gal-Yam.
来源: Ann Oncol. 2023年34卷12期1141-1151页
Acquired estrogen receptor alpha (ER/ESR1) mutations commonly cause endocrine resistance in ER+ metastatic breast cancer (mBC). Lasofoxifene, a novel selective ER modulator, stabilizes an antagonist conformation of wild-type and ESR1-mutated ER-ligand binding domains, and has antitumor activity in ESR1-mutated xenografts.
450. Randomized Phase 3 Trial of the Hypoxia Modifier Nimorazole Added to Radiation Therapy With Benefit Assessed in Hypoxic Head and Neck Cancers Determined Using a Gene Signature (NIMRAD).
作者: David J Thomson.;Nick J Slevin.;Helen Baines.;Guy Betts.;Steve Bolton.;Mererid Evans.;Kate Garcez.;Joely Irlam.;Lip Lee.;Nicola Melillo.;Hitesh Mistry.;Elisabet More.;Christopher Nutting.;James M Price.;Stefano Schipani.;Mehmet Sen.;Huiqi Yang.;Catharine M West.; .
来源: Int J Radiat Oncol Biol Phys. 2024年119卷3期771-782页
Tumor hypoxia is an adverse prognostic factor in head and neck squamous cell carcinoma (HNSCC). We assessed whether patients with hypoxic HNSCC benefited from the addition of nimorazole to definitive intensity modulated radiation therapy (IMRT).
451. Mirvetuximab Soravtansine in FRα-Positive, Platinum-Resistant Ovarian Cancer.
作者: Kathleen N Moore.;Antoine Angelergues.;Gottfried E Konecny.;Yolanda García.;Susana Banerjee.;Domenica Lorusso.;Jung-Yun Lee.;John W Moroney.;Nicoletta Colombo.;Andrzej Roszak.;Jacqueline Tromp.;Tashanna Myers.;Jeong-Won Lee.;Mario Beiner.;Casey M Cosgrove.;David Cibula.;Lainie P Martin.;Renaud Sabatier.;Joseph Buscema.;Purificación Estévez-García.;Lan Coffman.;Shibani Nicum.;Linda R Duska.;Sandro Pignata.;Fernando Gálvez.;Yuemei Wang.;Michael Method.;Anna Berkenblit.;Diana Bello Roufai.;Toon Van Gorp.; .
来源: N Engl J Med. 2023年389卷23期2162-2174页
Mirvetuximab soravtansine-gynx (MIRV), a first-in-class antibody-drug conjugate targeting folate receptor α (FRα), is approved for the treatment of platinum-resistant ovarian cancer in the United States.
452. First-line talazoparib with enzalutamide in HRR-deficient metastatic castration-resistant prostate cancer: the phase 3 TALAPRO-2 trial.
作者: Karim Fizazi.;Arun A Azad.;Nobuaki Matsubara.;Joan Carles.;Andre P Fay.;Ugo De Giorgi.;Jae Young Joung.;Peter C C Fong.;Eric Voog.;Robert J Jones.;Neal D Shore.;Curtis Dunshee.;Stefanie Zschäbitz.;Jan Oldenburg.;Dingwei Ye.;Xun Lin.;Cynthia G Healy.;Nicola Di Santo.;A Douglas Laird.;Fabian Zohren.;Neeraj Agarwal.
来源: Nat Med. 2024年30卷1期257-264页
Preclinical evidence has suggested an interplay between the androgen receptor, which largely drives the growth of prostate cancer cells, and poly(ADP-ribose) polymerase. This association provides a rationale for their co-inhibition for the treatment of metastatic castration-resistant prostate cancer (mCRPC), an area of unmet medical need. The phase 3 TALAPRO-2 study investigated combining the poly(ADP-ribose) polymerase inhibitor talazoparib with enzalutamide versus enzalutamide alone as first-line treatment of mCRPC. Patients were prospectively assessed for tumor alterations in DNA damage response genes involved in homologous recombination repair (HRR). Two cohorts were enrolled sequentially: an all-comers cohort that was enrolled first (cohort 1; N = 805 (169 were HRR-deficient)), followed by an HRR-deficient-only cohort (cohort 2; N = 230). We present results from the alpha-controlled primary analysis for the combined HRR-deficient population (N = 399). Patients were randomized in a 1:1 ratio to talazoparib or placebo, plus enzalutamide. The primary endpoint, radiographic progression-free survival, was met (median not reached at the time of the analysis for the talazoparib group versus 13.8 months for the placebo group; hazard ratio, 0.45; 95% confidence interval, 0.33 to 0.61; P < 0.0001). Data for overall survival, a key secondary endpoint, are immature but favor talazoparib (hazard ratio, 0.69; 95% confidence interval, 0.46 to 1.03; P = 0.07). Common adverse events in the talazoparib group were anemia, fatigue and neutropenia. Combining talazoparib with enzalutamide significantly improved radiographic progression-free survival in patients with mCRPC harboring HRR gene alterations, supporting talazoparib plus enzalutamide as a potential first-line treatment for these patients. ClinicalTrials.gov Identifier: NCT03395197 .
453. Gene expression alterations predict the pathological complete response in triple-negative breast cancer exploratory analysis of the NACATRINE trial.
作者: Ana Julia Aguiar Freitas.;Caroline Rocha Nunes.;Max Senna Mano.;Rhafaela Lima Causin.;Iara Viana Vidigal Santana.;Marco Antonio de Oliveira.;Stéphanie Calfa.;Henrique César Santejo Silveira.;Cristiano de Pádua Souza.;Márcia Maria Chiquitelli Marques.
来源: Sci Rep. 2023年13卷1期21411页
This exploratory analysis of the Neoadjuvant Carboplatin in Triple Negative Breast Cancer (NACATRINE) study aimed to identify the biomarkers of pathological complete response (pCR) in patients with triple-negative breast cancer (TNBC) treated with neoadjuvant chemotherapy (NAC) within the context of a clinical trial. The NACATRINE trial is a phase II, single-center, randomized, open-label clinical trial that investigated the addition of carboplatin to sequential anthracycline- and taxane-based NAC for TNBC. We evaluated the gene expression in untreated samples to investigate its association with pCR, overall survival (OS), and disease-free survival (DFS). RNA was extracted from the tissue biopsy, and the nCounter Breast Cancer panel was used to analyze gene expression. Of the 66 patients included in the gene expression profiling analysis, 24 (36.4%) achieved pCR and 42 (63.6%) had residual disease. In unsupervised hierarchical clustering analyses, differentially expressed genes between patients with and without pCR were identified irrespective of the treatment (24 genes), carboplatin (37 genes), and non-carboplatin (27 genes) arms. In receiver operating characteristic (ROC) curve analysis, 10 genes in the carboplatin arm (area under the ROC curve [AUC], 0.936) and three genes in the non-carboplatin arm (AUC, 0.939) were considered to be potential pCR-associated biomarkers. We identified genes that were associated with improvements in OS and DFS in addition to being related to pCR. We successfully identified gene expression signatures associated with pCR in pretreatment samples of patients with TNBC treated with NAC. Further investigation of these biomarkers is warranted.
454. CNS Efficacy of Osimertinib With or Without Chemotherapy in Epidermal Growth Factor Receptor-Mutated Advanced Non-Small-Cell Lung Cancer.
作者: Pasi A Jänne.;David Planchard.;Kunihiko Kobayashi.;Ying Cheng.;Chee Khoon Lee.;Natalia Valdiviezo.;Konstantin Laktionov.;Tsung-Ying Yang.;Yan Yu.;Terufumi Kato.;Liyan Jiang.;Busyamas Chewaskulyong.;Sarayut Lucien Geater.;Jean-Marc Maurel.;Carlos Rojas.;Toshiaki Takahashi.;Libor Havel.;Frances A Shepherd.;Kentaro Tanaka.;Dana Ghiorghiu.;Neha P Amin.;Elena Armenteros-Monterroso.;Xiangning Huang.;Ammar Ahmed Chaudhry.;James Chih-Hsin Yang.
来源: J Clin Oncol. 2024年42卷7期808-820页
We report CNS efficacy of first-line osimertinib plus chemotherapy versus osimertinib monotherapy in patients with epidermal growth factor receptor (EGFR)-mutated advanced non-small-cell lung cancer (NSCLC) from the phase III FLAURA2 study according to baseline CNS metastasis status.
455. Evaluation of tissue- and plasma-derived tumor mutational burden (TMB) and genomic alterations of interest in CheckMate 848, a study of nivolumab combined with ipilimumab and nivolumab alone in patients with advanced or metastatic solid tumors with high TMB.
作者: Jie He.;Natallia Kalinava.;Parul Doshi.;Dean C Pavlick.;Lee A Albacker.;Ericka M Ebot.;Hanna Tukachinsky.;James Pratt.;Gina Fusaro.;Geoffrey R Oxnard.;George Green.;David Fabrizio.;Jonathan Baden.
来源: J Immunother Cancer. 2023年11卷11期
An accumulation of somatic mutations in tumors leads to increased neoantigen levels and antitumor immune response. Tumor mutational burden (TMB) reflects the rate of somatic mutations in the tumor genome, as determined from tumor tissue (tTMB) or blood (bTMB). While high tTMB is a biomarker of immune checkpoint inhibitor (ICI) treatment efficacy, few studies have explored the clinical utility of bTMB, a less invasive alternative for TMB assessment. Establishing the correlation between tTMB and bTMB would provide insight into whether bTMB is a potential substitute for tTMB. We explored the tumor genomes of patients enrolled in CheckMate 848 with measurable TMB. The correlation between tTMB and bTMB, and the factors affecting it, were evaluated.
456. A randomised phase 2 study of intermittent versus continuous dosing of dabrafenib plus trametinib in patients with BRAFV600 mutant advanced melanoma (INTERIM).
作者: Alimu Dayimu.;Avinash Gupta.;Rubeta N Matin.;Jenny Nobes.;Ruth Board.;Miranda Payne.;Ankit Rao.;Alberto Fusi.;Sarah Danson.;Bryony Eccles.;Judith Carser.;Ciara O'Hanlon Brown.;Neil Steven.;Madhumita Bhattacharyya.;Ewan Brown.;Michael Gonzalez.;Martin Highley.;Lisa Pickering.;Satish Kumar.;Ashita Waterston.;George Burghel.;Leigh Demain.;Eleanor Baker.;Jerome Wulff.;Wendi Qian.;Sophie Twelves.;Mark Middleton.;Pippa Corrie.
来源: Eur J Cancer. 2024年196卷113455页
BRAF+MEK inhibitors extend life expectancy of patients with BRAFV600 mutant advanced melanoma. Acquired resistance limits duration of benefit, but preclinical and case studies suggest intermittent dosing could overcome this limitation. INTERIM was a phase 2 trial evaluating an intermittent dosing regimen.
457. Longitudinal Circulating Tumor DNA Modeling to Predict Disease Progression in First-Line Mutant Epidermal Growth Factor Receptor Non-Small Cell Lung Cancer.
作者: Martin Johnson.;Carlos Serra Traynor.;Karthick Vishwanathan.;Philip Overend.;Ryan Hartmaier.;Aleksandra Markovets.;Juliann Chmielecki.;Ganesh M Mugundu.;J Carl Barrett.;Helen Tomkinson.;Suresh S Ramalingam.
来源: Clin Pharmacol Ther. 2024年115卷2期349-360页
This exploratory, post hoc analysis aimed to model circulating tumor DNA (ctDNA) dynamics and predict disease progression in patients with treatment-naïve locally advanced/metastatic epidermal growth factor receptor mutation (EGFRm)-positive non-small cell lung cancer, from the FLAURA trial (NCT02296125). Patients were randomized 1:1 and received osimertinib 80 mg once daily (q.d.) or comparator EGFR-TKIs (gefitinib 250 mg q.d. or erlotinib 150 mg q.d.). Plasma was collected at baseline and multiple timepoints until treatment discontinuation. Patients with Response Evaluation Criteria in Solid Tumors (RECIST) imaging data and detectable EGFR mutations (Ex19del/L858R) at baseline and ≥ 3 additional timepoints were evaluable. Joint modeling was conducted to characterize the relationship between longitudinal changes in ctDNA and probability of progression-free survival (PFS). A Bayesian joint model of ctDNA and PFS was developed solving differential equations with the ctDNA dynamics and the PFS time-to-event probability. Of 556 patients, 353 had detectable ctDNA at baseline. Evaluable patients (with available imaging and ≥ 3 additional timepoints, n = 320; ctDNA set) were divided into training (n = 259) and validation (n = 61) sets. In the validation set, the model predicted a median PFS of 17.7 months (95% confidence interval (CI): 11.9-28.3) for osimertinib (n = 23) and 9.1 months (95% CI: 6.3-14.8) for comparator (n = 38), consistent with observed RECIST PFS (16.4 months and 9.7, respectively). The model demonstrates that EGFRm ctDNA dynamics can predict the risk of disease progression in this patient population and could be used to predict RECIST-defined disease progression.
458. FDA Approval Summary: Ivosidenib in Combination with Azacitidine for Treatment of Patients with Newly Diagnosed Acute Myeloid Leukemia with an IDH1 Mutation.
作者: Ashley Woods.;Kelly J Norsworthy.;Xin Wang.;Jonathon Vallejo.;Edwin Chiu Yuen Chow.;Ruo-Jing Li.;Jielin Sun.;Rosane Charlab.;Xiling Jiang.;Richard Pazdur.;Marc R Theoret.;R Angelo de Claro.
来源: Clin Cancer Res. 2024年30卷7期1226-1231页
On May 25, 2022, FDA approved a supplemental application for ivosidenib (Tibsovo; Servier) extending the indication in patients with newly diagnosed IDH1-mutated acute myeloid leukemia (AML) in older adults or those with comorbidities to include the combination with azacitidine. The efficacy of ivosidenib in combination with azacitidine was evaluated in Study AG120-C-009, a phase 3, multicenter, double-blind, randomized (1:1), controlled study of ivosidenib or matched placebo in combination with azacitidine in adults with previously untreated AML with an IDH1 mutation who were 75 years or older or had comorbidities that precluded use of intensive induction chemotherapy. Efficacy was established on the basis of improved event-free survival and overall survival on the ivosidenib + azacitidine arm [HR, 0.35; 95% confidence interval (CI), 0.17-0.72; P = 0.0038, and HR, 0.44; 95% CI, 0.27-0.73; P = 0.0010], respectively. Furthermore, the rate and duration of complete remission (CR) were improved with ivosidenib versus placebo [CR 47% versus 15%, two-sided P < 0.0001; median duration of CR not estimable (NE; 95% CI, 13.0-NE) months versus 11.2 (95% CI, 3.2-NE) months. The safety profile of ivosidenib in combination with azacitidine was consistent with that of ivosidenib monotherapy, with important adverse reactions including differentiation syndrome (15%) and QT interval prolongation (20%).
459. DNA Mutational Profiling in Patients With Colorectal Cancer Treated With Standard of Care Reveals Differences in Outcome and Racial Distribution of Mutations.
作者: Federico Innocenti.;Wancen Mu.;Xueping Qu.;Fang-Shu Ou.;Omar Kabbarah.;Charles David Blanke.;Alan P Venook.;Heinz-Josef Lenz.;Naim U Rashid.
来源: J Clin Oncol. 2024年42卷4期399-409页
CALGB (Alliance)/SWOG 80405 was a randomized phase III trial that in first-line patients with metastatic colorectal cancer (mCRC) treated with bevacizumab or cetuximab with chemotherapy. We aimed to discover novel mutated genes associated with prognosis and differential response to therapy with the biologics.
460. Nivolumab plus chemotherapy in first-line metastatic non-small-cell lung cancer: results of the phase III CheckMate 227 Part 2 trial.
作者: H Borghaei.;K J O'Byrne.;L Paz-Ares.;T-E Ciuleanu.;X Yu.;A Pluzanski.;A Nagrial.;L Havel.;R D Kowalyszyn.;C A Valette.;J R Brahmer.;M Reck.;S S Ramalingam.;L Zhang.;I Ntambwe.;S K Rabindran.;F E Nathan.;D Balli.;Y-L Wu.
来源: ESMO Open. 2023年8卷6期102065页
In CheckMate 227 Part 1, first-line nivolumab plus ipilimumab prolonged overall survival (OS) in patients with metastatic non-small-cell lung cancer (NSCLC) and tumor programmed death-ligand 1 (PD-L1) expression ≥1% versus chemotherapy. We report results from CheckMate 227 Part 2, which evaluated nivolumab plus chemotherapy versus chemotherapy in patients with metastatic NSCLC regardless of tumor PD-L1 expression.
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