tbuckley/cabot-search huggingface dataset:
Efficacy and safety of JMT103 in patients with giant cell tumor of bone: A multicenter, single-arm, open-label, phase Ib/II study.
Authors: Xiaohui Niu, Feng Wei, Chongqi Tu, Gang Huang, Wenzhi Bi, Jianmin Li, Weitao Yao, Xiaojing Zhang, Jingnan Shen, Guochuan Zhang, Wangjun Yan, Jilong Yang, Jianhua Lin, Zhaoming Ye, Dong Wang, Zheng Guo, Zhichao Tong, Yuhong Zhou, Hairong Xu, Tao Li
Journal: Journal of Clinical Oncology (2021)

11526 Background: JMT103 is a novel, fully humanized IgG4 monoclonal antibody targeting RANKL, inhibiting osteoclastogenesis and osteoclast-mediated bone resorption. A multicenter, single-arm, open-label, phase Ib/II study was conducted to evaluate the efficacy and safety of JMT103 in patients (pts) with Giant cell tumor of bone (GCTB). Methods: Eligible pts (ECOG: 0-2) were adults with pathologically confirmed unresectable GCTB or their planned surgery is associated with severe morbidity. Pts with active dental or jaw condition requiring oral surgery, other anti-tumor therapies, anti-RANKL antibody or concurrent use of bisphosphonates were excluded. 2 mg/kg JMT103 was administrated subcutaneously every 4 weeks with a loading dose on days 8 and day 15 of the first 4 week of therapy. The primary endpoint was tumor response, defined as elimination of at least 90% giant cells or objective response of the target lesion assessed by radiologic imaging as per Modified Inverse Choi density/size (ICDS) or the Modified European Organization for Research and Treatment of Cancer (EORTC) criteria within 12 weeks. Secondary endpoints included safety profile, change of pain score using Brief Pain Inventory-Short Form, and suppression of bone-resorption biomarkers. Results: 38 pts (14 males) were enrolled between June 3 and December 24, 2020. The median age was 31 years (range 18-57). Lesions sites included lower extremities (39.5%), upper extremities (31.6%), spine (21.1%) and pelvis (13.2%). Among 32 pts with at least 1 efficacy evaluation within 12 weeks, 26 (81.3%, 95% CI: 63.6-92.8) had a tumor response by at least one response criteria. All 7 pts who underwent histological assessments had a tumor response. 25 of 32 pts assessed by radiology had a tumor response. As per ICDS criteria, 23 of 32 (71.9%) had a response; as per EORTC criteria, 15 of 17 (88.2%) had a response. 21 of 26 (80.8%) pts who complained of pain at baseline experienced reduced pain during the treatment. The median reductions in bone-resorption biomarkers were 71.8% (IQR 67.7-82.4) for uNTx/Cr (p &lt; 0.001) and 81.4% (IQR 68.3-84.7) for sCTx (p &lt; 0.001) at day 8. Of all 38 pts who were included in safety analyses, treatment-related adverse events (TRAEs) occurred in 14 pts. The most common TRAEs were hypophosphatemia (18.4%), hypocalcemia (7.9%) and blood bilirubin increased (7.9%). 1 patient (2.6%) was reported a grade 3 AE but it was not related to the treatment; other AEs were grade 1–2. Conclusions: JMT103 demonstrated encouraging anti-tumor efficacy and manageable safety profile in pts with unresectable GCTB or at high risk of severe morbidity after surgery. Clinical trial information: NCT04255576.
Noninferiority study evaluating dexamethasone (DEX)-sparing regimens administered with NEPA, a fixed combination of netupitant and palonosetron, for the prevention of chemotherapy-induced nausea and vomiting (CINV) caused by high-dose cisplatin.
Authors: Luigi Celio, Erminio Bonizzoni, Emilio Bria
Journal: Journal of Clinical Oncology (2021)

12093 Background: Corticosteroids such as DEX continue to play a key role for the prevention of CINV. Although they are generally considered safe when used in combination with other anti-emetic agents, corticosteroids can cause a range of side effects. To reduce the overall exposure to DEX in patients receiving cisplatin-based chemotherapy, we evaluated the non-inferiority of DEX on day 1, with or without low-dose DEX on days 2 and 3, combined with oral NEPA, a fixed combination of the NK 1 receptor antagonist (RA), netupitant and 5-HT 3 RA, palonosetron, compared with NEPA plus the guideline-recommended use of 4-day DEX (reference arm). Non-inferiority was met for both DEX-sparing regimens and the reference arm for the primary endpoint of complete response (CR: no emesis and no rescue use) during the overall (0-120h) phase post-chemotherapy. In this analysis secondary efficacy endpoints were evaluated for the single-dose DEX-sparing group versus the 4-day DEX arm. Methods: In this analysis from an open-label, multicenter study (ClinicalTrials.gov NCT04201769) chemotherapy-naïve patients undergoing high-dose cisplatin (≥70 mg/m 2 ) received either NEPA and DEX (12 mg) on day 1 only or NEPA and DEX [12 mg on day 1 plus 4 mg twice daily on days 2-4 (DEX4)]. Efficacy endpoints included complete protection (CR plus no significant nausea), no emesis, and no significant nausea (&lt;25 mm on a 100 mm visual analog scale) during the acute (0-24h), delayed (&gt;24-120h) and overall phases. The non-inferiority margin was set at -15% difference (DEX1 minus DEX4). Results: One-hundred fifty-two patients, 76 in each arm, were included. Non-inferiority was met for the DEX1 arm and the DEX4 reference arm for all efficacy endpoints (Table). Conclusions: A simplified regimen of NEPA plus single-dose DEX offers comparable CINV prevention throughout 5 days post-chemotherapy with the advantage of sparing patients additional doses of DEX in the high emetic risk setting of cisplatin-based chemotherapy. Clinical trial information: NCT04201769. [Table: see text]
Phase II study of nivolumab and ipilimumab in children and young adults with INI1-negative cancers.
Authors: Suzanne J. Forrest, Joanna Yi, Cassie Kline, Thomas Cash, Alyssa Terry Reddy, Gregory Michael Cote, Priscilla Merriam, Jeffrey Czaplinski, Ketki Bhushan, Steven G. DuBois, Katherine A. Janeway, Pei-Chi Kao, Wendy B. London, Susan N. Chi, Natalie Bucheimer Collins
Journal: Journal of Clinical Oncology (2021)

TPS10055 Background: Several aggressive pediatric and young adult cancers are characterized by SMARCB1 inactivation resulting in loss of INI1 expression, including rhabdoid tumors, epithelioid sarcoma and undifferentiated chordoma. These malignancies are associated with a poor prognosis and few effective treatment options for relapsed or refractory disease. Prior studies and emerging data suggest INI1-negative cancers may be uniquely susceptible to treatment with immune checkpoint inhibitors: Many INI1-negative pediatric tumors express PD-L1 and are infiltrated by immune cells, and there are reports of patients with advanced INI1-negative cancers with clinical responses to immune checkpoint blockade (Forrest et al. Clinical Cancer Research, 2020). We hypothesize that INI1 loss predicts tumor response to immune checkpoint inhibition (ICI). Methods: This is an ongoing multicenter, phase II, open-label clinical trial to evaluate the activity of nivolumab and ipilimumab in patients aged 6 months to 30 years with relapsed or refractory INI1-negative cancers (NCT04416568). The study enrolls patients in 2 strata: extracranial solid tumors in Stratum 1 and intracranial solid tumors in Stratum 2. Patients treated with prior ICI are excluded. Patients are treated with intravenous (IV) nivolumab 3mg/kg plus ipilimumab 1mg/kg IV every 3 weeks for 4 cycles followed by nivolumab 3mg/kg (max dose 240mg) IV every 2 weeks for up to 1-year. The primary objective is to evaluate the objective response rate (ORR) by Response Evaluation Criteria in Solid Tumors (RECIST) for Stratum 1 and by Response Assessment in Neuro-Oncology (RANO) criteria for Stratum 2. The trial has a 2-stage design targeting a 25% or greater response rate, with each stratum assessed independently. The analysis for Stage 1 in a given Stratum will be performed after 10 patients are enrolled. If a sufficient number of responders are observed, an additional 10 patients will be enrolled at Stage 2. Secondary endpoints include progression-free survival, overall survival, and disease control rate at 12 months. Correlative aims include assessing tissue and blood biomarkers associated with treatment response. Enrollment began 14 Aug 2020 and is ongoing. Clinical trial information: NCT04416568.
EPEN-04. SIOP EPENDYMOMA I: FINAL RESULTS, LONG TERM FOLLOW-UP AND MOLECULAR ANALYSIS OF THE TRIAL COHORT: A BIOMECA CONSORTIUM STUDY
Authors: Timothy A. Ritzmann, Rebecca J Chapman, Donald Macarthur, Conor Mallucci, John-Paul Kilday, Nicola Thorp, Piergiorgio Modena, Marzia Giagnacovo, Rob Dineen, Timothy Jaspan, Kristian W Pajtler, Thomas S Jacques, Simon M L Paine, David W Ellison, Eric Bouffet, Richard G Grundy
Journal: Neuro-Oncology (2021)

Abstract Introduction Surgery and radiotherapy are established childhood ependymoma treatments. The efficacy of chemotherapy has been debated. We report final results of the SIOP Ependymoma I trial, with 12-year follow-up, in the context of a post-hoc analysis of more recently described biomarkers. Aims and Methods The trial assessed event free (EFS) and overall survival (OS) of patients aged three to 21 years with non-metastatic intracranial ependymoma, treated with a staged management strategy targeting maximum local control. The study also assessed: the response rate (RR) of subtotally resected (STR) disease to vincristine, etoposide and cyclophosphamide (VEC); and surgical operability. Children with gross total resection (GTR) received radiotherapy of 54 Gy in 30 daily fractions over six weeks, whilst those with STR received VEC before radiotherapy. We retrospectively assessed methylation and 1q status alongside hTERT, RELA, Tenascin C, H3K27me3 and pAKT expression. Results Between 1999 and 2007, 89 participants were enrolled, 15 were excluded with metastatic (n=4) or non-ependymoma tumours (n=11) leaving a final cohort of 74. Five- and ten-year EFS was 49.5% and 46.7%, OS was 69.3% and 60.5%. 1q gain was associated with poorer EFS (p=0.002, HR=3.00, 95%CI 1.49–6.10). hTERT expression was associated with worse five-year EFS (20.0% Vs 83.3%, p=0.014, HR=5.8). GTR was achieved in 33/74 (44.6%) and associated with improved EFS (p=0.006, HR=2.81, 95% confidence interval 1.35–5.84). There was an improvement in GTR rates in the latter half of the trial (1999-2002 32.4% versus 2003-2007 56.8%). Despite the protocol, 12 participants with STR did not receive chemotherapy. However, chemotherapy RR was 65.5% (19/29, 95%CI 45.7–82.1). Conclusions VEC exceeded the pre-specified RR of 45% in children over three years with STR intracranial ependymoma. However, cases of inaccurate stratification at treating centres highlights the need for rapid central review. We also confirmed associations between 1q gain, hTERT expression and outcome.
A Review of Acute Pancreatitis—Reply
Authors: Mark D. Girgis, Michael A. Mederos, Howard A. Reber
Journal: JAMA (2021)

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Covid-19: AstraZeneca vaccine linked with small risk of ITP, real world data show
Authors: Jacqui Wise
Journal: BMJ (2021)

Covid-19: AstraZeneca vaccine linked with small risk of ITP, real world data show Jacqui WiseThe AstraZeneca covid-19 vaccine is associated with a small increased risk of immune thrombocytopenic purpura (ITP), real world data from Scotland's vaccination programme has shown.1
A commentary on “Gustave Roussy Immune Score based on a three-category risk assessment scale serves as a novel and effective prognostic indicator for surgically resectable early-stage non-small-cell lung cancer: A propensity score matching retrospective cohort study” (Int J Surg 2020; 84: 25–40)
Authors: Huangkai Zhu, Guofang Zhao
Journal: International Journal of Surgery (2021)
Lymphatic PD-L1 Expression Restricts Tumor-Specific CD8+ T-cell Responses
Authors: Nikola Cousin, Stefan Cap, Manuel Dihr, Carlotta Tacconi, Michael Detmar, Lothar C. Dieterich
Journal: Cancer Research (2021)

Abstract Lymph node (LN)–resident lymphatic endothelial cells (LEC) mediate peripheral tolerance by self-antigen presentation on MHC-I and constitutive expression of T-cell inhibitory molecules, including PD-L1 (CD274). Tumor-associated LECs also upregulate PD-L1, but the specific role of lymphatic PD-L1 in tumor immunity is not well understood. In this study, we generated a mouse model lacking lymphatic PD-L1 expression and challenged these mice with two orthotopic tumor models, B16F10 melanoma and MC38 colorectal carcinoma. Lymphatic PD-L1 deficiency resulted in consistent expansion of tumor-specific CD8+ T cells in tumor-draining LNs in both tumor models, reduced primary tumor growth in the MC38 model, and increased efficacy of adoptive T-cell therapy in the B16F10 model. Strikingly, lymphatic PD-L1 acted primarily by inducing apoptosis in tumor-specific CD8+ central memory T cells. Overall, these findings demonstrate that LECs restrain tumor-specific immunity via PD-L1, which may explain why some patients with cancer without PD-L1 expression in the tumor microenvironment still respond to PD-L1/PD-1–targeted immunotherapy. Significance: A new lymphatic-specific PD-L1 knockout mouse model reveals that lymphatic endothelial PD-L1 expression reduces tumor immunity, inducing apoptosis in tumor-specific CD8+ central memory cells in tumor-draining lymph nodes.
Clinical impact of medical policy supporting universal germline testing for patients with colorectal cancer.
Authors: Sarah M. Nielsen, Joline Dalton, Kathryn E. Hatchell, Stacey DaCosta Byfield, Chad Moretz, John Buresh, Taryn Hall, Robert Luke Nussbaum, Edward D. Esplin
Journal: Journal of Clinical Oncology (2021)

10514 Background: Colorectal cancer (CRC) affects approximately 104,000 patients (pts) annually in the United States, up to 45% of which are estimated to be genetic and/or familial. Aligned with clinical guidelines, in 2020, a large U.S. insurer established Medical Policy allowing for and reimbursing germline genetic testing (GGT) for all CRC pts. This study reports overall uptake of GGT in CRC pts under this inclusive policy, actionable findings and treatment implications for pts tested, stratified by self-reported ancestry/ethnicity. Methods: Two independent de-identified datasets were reviewed, including administrative claims data of commercially insured and Medicare Advantage enrollees, aged 18+ with CRC (≥1 claim with ICD10 C18, C19 or C20 in the first position) who were continuously enrolled (CE) in the health plan from 1/2019-10/2020. Evidence of genetic testing based on CPT codes, was examined during 2020. A second de-identified dataset of CRC pts whose GGT was billed to the insurer under the Medical Policy, was also reviewed. Patient demographics, clinical information and GGT results were descriptively analyzed. Results: Of the &gt;18,000,000 CE enrollees, 55,595 were identified as CRC pts, of whom 1,675 (3%) received GGT. From the GGT dataset, 788 pts had test results available for review. 143 (18%) pts had pathogenic/likely pathogenic (P/LP) variants in genes including MSH2, MLH1, PMS2, MSH6, CHEK2, APC, BRCA2, ATM, MUTYH (biallelic). Of pts with P/LP variants, 96 (67%) were potentially eligible for precision therapy and/or clinical treatment trials. Overall, 133 (93%) had P/LP variants in genes with precision therapy, clinical trial and/or published management implications. In a subset of pts (n=674) with ethnicity data; Asian, Black/African-American and Hispanic pts showed lower relative uptake of germline testing than Caucasians (Table). Conclusions: Despite Medical Policy allowing for GGT for all pts with CRC, only 3% of eligible pts received testing. If all CRC pts had been tested, these data suggest up to 6,705 pts with P/LP variants conferring potential eligibility for precision therapy (PD-1/PD-L1 inhibitors) or clinical treatment trials (PARP inhibitors), and an additional 2,602 pts with mutations in genes with published management recommendations, could have been identified, but were missed. Additional research is needed to identify obstacles to systematic implementation of this Medical Policy, the best timing of GGT to prevent CRC and improve access to underrepresented populations. CRC patients with germline genetic testing.[Table: see text]
A randomized, double-blind, multicenter, phase III study of fosnetupitant for the prevention of chemotherapy-induced nausea and vomiting (CINV) in patients receiving doxorubicin-cyclophosphamide/epirubicin-cyclophosphamide (AC/EC) based highly emetogenic chemotherapy: CONSOLE-BC.
Authors: Junji Tsurutani, Kazuo Matsuura, Kenichi Inoue, Yuko Tanabe, Tetsuhiko Taira, Kaoru Kubota, Tomohide Tamura, Toshiaki Saeki
Journal: Journal of Clinical Oncology (2021)

12094 Background: Fosnetupitant (FN) is a phosphorylated pro-drug of netupitant that has high binding affinity and selectivity for the neurokinin 1 receptor and a long half-life of 70 h. Recent studies have reported that fosaprepitant (FA) has a risk for developing injection site reactions (ISRs) in patients with breast cancer who receive doxorubicin-cyclophosphamide/epirubicin-cyclophosphamide (AC/EC)-based treatments. Previous studies have shown that FN may have a low risk of ISRs and could potentially address this unmet medical need. The present study (JapicCTI-194691) was intended to evaluate the safety profile, including ISRs, of FN in patients receiving AC/EC treatment. For exploratory purposes, we set the FA group as the exploratory arm. A separate pivotal phase 3 study (JapicCTI-194611) was conducted to verify the efficacy and safety of FN compared with FA in patients receiving cisplatin-based chemotherapy. Methods: Patients scheduled to receive AC/EC were randomly assigned 1:1 to receive FN 235 mg or FA 150 mg in a double-blind manner, in combination with intravenous palonosetron (PALO) 0.75 mg and dexamethasone (DEX) 9.9 mg on day 1. The stratification factors were age class ( &lt; 55 years vs. ≥55 years) and site. The primary endpoint was the incidence of treatment-related adverse events (TRAEs) of FN. In addition, the ISRs were investigated as secondary endpoints. Efficacy outcomes were also evaluated as secondary endpoint. Results: Between April 2019 and March 2020, total 102 patients were enrolled in the study. Fifty-two patients were randomized to the FN group and 50 to the FA group, and all of them were treated with the study drug and evaluated for safety. The baseline characteristics were generally balanced, except for the history of motion sickness (54.9% vs. 44.9%) and non-smokers (78.4% vs. 63.3%) in the FN and FA groups, respectively, which are considered as risk factors for chemotherapy-induced nausea and vomiting. The primary endpoint, the incidence of TRAEs was 21.2% (n = 11) (95% CI 11.1% – 34.7%) in the FN group, which was similar to that in the FA group [22.0% (n = 11) (95% CI 11.5% - 36.0%) ]. Any cause or treatment-related ISRs were observed in 5.8% (n = 3) and 0% (n = 0), respectively, in the FN group and 26.0% (n = 13) and 10.0% (n = 5), respectively, in the FA group. The overall (0–120 h) complete response (no emetic event and no rescue medication) rate standardized by age category was 45.9% (n = 23) in the FN group and 51.3% (n = 25) in the FA group. Conclusions: The safety of FN in combination with PALO and DEX was favorable. Risk of ISR by FN was quite low in the AC/EC setting. Clinical trial information: JapicCTI-194691.
PSMA-PET/CT Registry for Recurrent Prostate Cancer (PREP): Initial findings from a single center.
Authors: Anil Kapoor, Katherine Zukotynski, Camilla Tajzler, Jen Hoogenes, Edward Matsumoto, Michael Uy, Glenn Bauman, Ur Metser, Antonio Finelli, Maylynn Ding, Bobby Shayegan
Journal: Journal of Clinical Oncology (2021)

5064 Background: Several lesion-targeted therapies exist for locally recurrent or limited stage metastatic prostate cancer (PCa) post-radiotherapy (RT) and radical prostatectomy (RP). However, detection of disease sites is limited using conventional imaging (CI) including computed tomography (CT) and bone scan. Prostate specific membrane antigen (PSMA) targeting PET radiopharmaceuticals like [18F]DCFPyL may help detect disease not seen on CI. Our objective was to assess the ability of PSMA targeted PET/CT to detect sites of disease recurrence and impact on patient management. Methods: This multi-center prospective registry study included six Ontario centers. Eligible patients in 1 of 7 clinical cohorts (Table) were identified and approved by Cancer Care Ontario (CCO) to have restaging with PSMA targeted PET/CT. Referring physicians were asked to complete a form indicating whether a change in management strategy would occur based on the PET/CT results. At 6 months post-PET/CT, actual patient management will be confirmed via provincial registries. These interim results are from a single center. Results: 253 patients were enrolled and had a PSMA targeted PET/CT. At baseline, median age was 71 years (range 50-102 years) and median PSA was 2.7 ng/mL (range 0.04-134.0 ng/mL). The majority of patients (n=59; 23.3%) were in cohort 2 (biochemical failure post-RP). In patients with negative CI, PSMA targeted PET/CT detected disease sites in 68.5% (170/248), resulting in a change in management for 67.8% (137/202) overall and 72.1% and 64.3% post-RT and post-RP, respectively. Conclusions: PSMA targeted PET/CT detected occult lesions on CI in the majority of patients enrolled, leading to a high rate of change in management. Our institutional results are in keeping with preliminary results reported for the provincial cohort. Clinical trial information: NCT03718260. [Table: see text]