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Fathi A, Wang E, Issa G, Altman J, Montesinos P, de Botton S, Walter R, Pettit K, Patnaik M, Kremyanskaya M, Baer M, M Foran J, Schiller G, Ades L, Heiblig M, Peterlin P, Salamero Garcia O, Papayannidis C, Nie K, Ahsan Mackey J, Tabachri M, Corum D, Leoni M, Dale S, Erba H. P504: UPDATED DATA FOR ZIFTOMENIB IN PATIENTS WITH NPM1-MUTATED RELAPSED OR REFRACTORY ACUTE MYELOID LEUKEMIA. Hemasphere 2023; 7:e19161da. [PMCID: PMC10429668 DOI: 10.1097/01.hs9.0000968924.19161.da] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/10/2023] Open
Affiliation(s)
- Amir Fathi
- Massachusetts General Hospital, Boston, United States
| | - Eunice Wang
- Roswell Park Comprehensive Cancer Center, Buffalo, United States
| | - Ghayas Issa
- MD Anderson Cancer Center, Houston, United States
| | | | - Pau Montesinos
- Hospital Universitario i Politècnico la Fe, Valencia, Spain
| | | | - Roland Walter
- Fred Hutchinson Cancer Center, Seattle, United States
| | | | | | | | - Maria Baer
- University of Maryland, Baltimore, United States
| | | | - Gary Schiller
- University of California, Los Angeles, Los Angeles, United States
| | | | | | | | | | | | - Kun Nie
- Kura Oncology, Inc, Boston, United States
| | | | | | | | | | | | - Harry Erba
- Duke University Hospital, Durham, United States
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Coleman N, Marcelo KL, Hopkins JF, Khan NI, Du R, Hong L, Park E, Balsara B, Leoni M, Pickering C, Myers J, Heymach J, Albacker LA, Hong D, Gillison M, Le X. HRAS Mutations Define a Distinct Subgroup in Head and Neck Squamous Cell Carcinoma. JCO Precis Oncol 2023; 7:e2200211. [PMID: 36603172 PMCID: PMC9928766 DOI: 10.1200/po.22.00211] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
PURPOSE In head and neck squamous cell carcinoma (HNSCC), HRAS mutation is a new actionable oncogene driver. We aimed to evaluate HRAS mutational variants, comutation profile, and survival outcomes of this molecularly defined population. METHODS We leveraged four deidentified patient data sets with HRAS-mutant HNSCC, MD Anderson Cancer Center, Kura Oncology, Inc trial, Foundation Medicine, and American Association for Cancer Research GENIE v.12. Patient demographic information and clinical courses were extracted, when available, in addition to HRAS mutation type and co-occurring mutations. Survival outcomes were analyzed (Kaplan-Meier method). RESULTS Two hundred forty-nine patients with HRAS-mutant HNSCC were identified from the four data sets. Median age ranged from 55 to 65 years, with a higher frequency in male patients (64%); the majority of HRAS-mutant HNSCC occurred in human papillomavirus-negative HNSCC. HRAS mutation patterns were similar across data sets; G12S was the most common (29%). Treatment responses to tipifarnib were not codon-specific. Compared with wild-type, significantly co-occurring mutations with HRAS were Casp8 (Fisher's exact test, P < .00013), TERT (P < .0085), and NOTCH1 (P < .00013). Analysis of clinical courses from the MD Anderson Cancer Center and Kura Oncology, Inc data sets demonstrated poor clinical outcomes with a high rate of recurrence following primary definitive treatment (50%-67% relapse < 6 months) and short disease-free survival (4.0 months; 95% CI, 1.0 to 36.0) and overall survival (OS; 15.0 months; 95% CI, 6.0 to 52.0). Use of tipifarnib in this data set demonstrated improved OS (25.5 months; 95% CI, 18.0 to 48.0). CONCLUSION Oncogenic mutations in HRAS occur in 3%-4% of HNSCC, with G12S being the most frequent. Without targeted therapy, patients with HRAS-mutant HNSCC had poor clinic outcomes; observable trend toward improvement in OS has been noted in cohorts receiving treatments such as tipifarnib. The comutation pattern of HRAS-mutant in HNSCC is distinct, which may provide insight to future therapeutic combination strategies.
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Affiliation(s)
- Niamh Coleman
- Department of Investigational Cancer Therapeutics, University of Texas MD Anderson Cancer Center, Houston, TX
| | - Kathrina L. Marcelo
- Department of Thoracic/Head & Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Julia F. Hopkins
- Cancer Genomics Research, Foundation Medicine Inc, Cambridge, MA
| | - Nusrat Israr Khan
- Department of Thoracic/Head & Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Robyn Du
- Department of Thoracic/Head & Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Lingzhi Hong
- Department of Thoracic/Head & Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Edward Park
- Clinical Development, Kura Oncology Inc, Boston, MA
| | | | - Mollie Leoni
- Clinical Development, Kura Oncology Inc, Boston, MA
| | - Curtis Pickering
- Department of Head and Neck Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Jeffrey Myers
- Department of Head and Neck Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - John Heymach
- Department of Thoracic/Head & Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Lee A. Albacker
- Cancer Genomics Research, Foundation Medicine Inc, Cambridge, MA
| | - David Hong
- Department of Investigational Cancer Therapeutics, University of Texas MD Anderson Cancer Center, Houston, TX
| | - Maura Gillison
- Department of Thoracic/Head & Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Xiuning Le
- Department of Thoracic/Head & Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX,Xiuning Le, MD, PhD, Department of Thoracic/Head & Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030; e-mail:
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Soifer H, Mishra V, Malik S, Smith A, Chan S, Kessler L, Burrows F, Leoni M, Saunders A, Dale S. HNSCCs overexpressing wild-type HRAS are sensitive to combined tipifarnib and alpelisib treatment. Eur J Cancer 2022. [DOI: 10.1016/s0959-8049(22)00955-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Hanna GJ, Batista CP, Ho AL, Gillison ML, Adkins D, Dayoub A, Martell B, Leoni M, Dale S, Nie K, Dmitrienko A. Abstract CT253: A Phase 1/2 trial to evaluate the safety and antitumor activity of tipifarnib and alpelisib for patients with HRAS-overexpressing and/or PIK3CA-mutated/amplified recurrent/metastatic head and neck squamous cell carcinoma (The KURRENT trial). Cancer Res 2022. [DOI: 10.1158/1538-7445.am2022-ct253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Understanding connections between key cellular pathways is particularly important when selecting combinatorial cancer therapies. HRAS preferentially activates PI3K 5-fold more efficiently than KRAS, while KRAS is a more efficient activator of RAF (Yan et al. 1998). Further, mutant HRAS is insufficient for oncogenic transformation if it is unable to recruit PI3K in preclinical models (Gupta et al. 2007). Conversely, mutant PI3K requires RAS to drive tumor growth (Zhao and Vogt 2008). HRAS mutation/overexpression and PIK3CA mutations/amplifications account for up to 50% of head and neck squamous cell carcinoma (HNSCC). Recognition of these interdependencies was the basis for the evaluation of HNSCC PDX models (HRAS-mutant, HRAS wildtype-overexpressed, PIK3CA-amplified, and PIK3CA-mutant) which demonstrated additive and synergistic growth effects that confirmed the codependency of these pathways, thus providing robust rationale for investigating combined pathway inhibition in the clinic. The KURRENT trial is enrolling patients with HRAS and/or PIK3CA-dependent tumors who will receive combination treatment with tipifarnib (a potent and selective inhibitor of farnesyltransferase, a critical enzyme for HRAS activity) and alpelisib (an inhibitor of PI3K with inhibitory activity predominantly against the PI3Kα isoform).
Methods: The KURRENT trial (KO-TIP-013, NCT04809233) is an ongoing multicenter, open-label, 2-cohort, phase 1/2 trial designed to evaluate the safety of the combination of tipifarnib and alpelisib, determine the recommended combination dose(s) regimen, and evaluate preliminary anti-tumor activity in patients with recurrent/metastatic (R/M) HNSCC whose tumors are dependent upon HRAS and/or PIK3CA signaling. Dependency is defined as an overexpression of the HRAS protein, and/or a PIK3CA mutation and/or amplification. The trial will enroll 40 HNSCC patients (oral cavity, oropharynx, larynx or hypopharynx, sinonasal, nasopharyngeal, or unknown primary subsites regardless of human papillomavirus status); 20 each into two biomarker defined cohorts (Cohort 1: PIK3CA; Cohort 2: HRAS). Participants must have documented treatment failure from at least one prior therapy in the R/M setting and have measurable disease by RECIST v1.1. At the starting dose level, participants will receive tipifarnib at 300 mg twice daily on days 1-7 and 15-21 and alpelisib 200 mg each morning continuously during a 28-day cycle. The trial will use an adaptive dose escalation design (based on a Bayesian logistic regression model) to characterize safety, tolerability, and clinical activity of the combination to identify the Optimal Biologically Active Dose (OBAD) while maintaining a dose limiting toxicity (DLT) rate <33%. No formal interim analysis is planned as the model-based dose escalation process requires decisions based on real-time evaluation of aggregate toxicity and efficacy data. All observed/available data among each cohort will be evaluated before choosing the combination dose for a subsequent cohort. The trial opened for enrollment in October 2021.
Citation Format: Glenn J. Hanna, Cesar Perez Batista, Alan L. Ho, Maura L. Gillison, Douglas Adkins, Ashley Dayoub, Bridget Martell, Mollie Leoni, Stephen Dale, Kun Nie, Alex Dmitrienko. A Phase 1/2 trial to evaluate the safety and antitumor activity of tipifarnib and alpelisib for patients with HRAS-overexpressing and/or PIK3CA-mutated/amplified recurrent/metastatic head and neck squamous cell carcinoma (The KURRENT trial) [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2022; 2022 Apr 8-13. Philadelphia (PA): AACR; Cancer Res 2022;82(12_Suppl):Abstract nr CT253.
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Affiliation(s)
| | | | - Alan L. Ho
- 3Memorial Sloan Kettering Cancer Center, New York, NY
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5
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Bagot M, Dalle S, Sokol L, Tsianakas A, Musiek A, Ortiz-Romero PL, Poligone B, Duvic M, Elmets C, Leoni M, Dwyer K, Ito T, Herr F, Kim YH. Long-term disease control and safety with the anti-CCR4 antibody mogamulizumab: Post-hoc analyses from the MAVORIC trial of patients with previously treated cutaneous T-cell lymphoma. Dermatol Ther 2022; 35:e15634. [PMID: 35695215 PMCID: PMC9539986 DOI: 10.1111/dth.15634] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 05/24/2022] [Accepted: 06/10/2022] [Indexed: 11/28/2022]
Affiliation(s)
- Martine Bagot
- Hôpital Saint Louis, APHP, Inserm U976, Université Paris Cité, Paris, France
| | - Stéphane Dalle
- Hospices Civils de Lyon, Claude Bernard Lyon 1 University, Lyon, France
| | - Lubomir Sokol
- Department of Malignant Hematology, Moffitt Cancer Center, Tampa, Florida, USA
| | - Athansios Tsianakas
- Department of Dermatology, Specialist Clinic Bad Bentheim, Bad Bentheim, Germany
| | - Amy Musiek
- Division of Dermatology, Washington University, St. Louis, Missouri, USA
| | - Pablo L Ortiz-Romero
- Department of Dermatology, Institute i+12, Hospital 12 de Octubre Medical School, University Complutense Madrid, Madrid, Spain
| | - Brian Poligone
- Rochester Skin Lymphoma Medical Group, Fairport, New York, USA
| | - Madeleine Duvic
- Department of Dermatology, MD Anderson Cancer Center, Houston, Texas, USA
| | - Craig Elmets
- The Department of Dermatology and the O'Neal Comprehensive Cancer Center, University of Alabama, Birmingham, Alabama, USA
| | - Mollie Leoni
- Medical Sciences, Kyowa Kirin, Inc, Princeton, New Jersey, USA
| | - Karen Dwyer
- Medical Sciences, Kyowa Kirin, Inc, Princeton, New Jersey, USA
| | - Takahiro Ito
- Medical Sciences, Kyowa Kirin, Inc, Princeton, New Jersey, USA
| | - Fiona Herr
- Medical Affairs, Kyowa Kirin, Inc, Bedminster, New Jersey, USA
| | - Youn H Kim
- Multidisciplinary Cutaneous Lymphoma Program, Stanford University, Stanford, California, USA
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Hanna GJ, Perez CA, Ho AL, Gillison ML, Adkins D, Dayoub A, Saunders A, Leoni M, Dale S, Nie K, Dmitrienko A. A phase 1/2 trial to evaluate the safety and antitumor activity of tipifarnib and alpelisib for patients with PIK3CA-mutated/amplified and/or HRAS-overexpressing recurrent/metastatic head and neck squamous cell carcinoma. J Clin Oncol 2022. [DOI: 10.1200/jco.2022.40.16_suppl.tps6104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
TPS6104 Background: Understanding connections between key cellular pathways is particularly important when selecting combinatorial cancer therapies. HRAS preferentially activates PI3K 5-fold more efficiently than KRAS, while KRAS is a more efficient activator of RAF (Yan et al. 1998). Further, mutant HRAS is insufficient for oncogenic transformation if it is unable to recruit PI3K in preclinical models (Gupta et al. 2007). Conversely, mutant PI3K requires RAS to drive tumor growth (Zhao and Vogt 2008). HRAS mutation/overexpression and PIK3CA mutations/amplifications account for up to 50% of head and neck squamous cell carcinoma (HNSCC). Recognition of these interdependencies was the basis for the evaluation of HNSCC PDX models which demonstrated additive or synergistic anti-tumor effects that confirmed the codependency of these pathways, thus providing robust rationale for investigating combined pathway inhibition in the clinic. The KURRENT trial is enrolling patients with HRAS and/or PIK3CA-dependent tumors who will receive combination treatment with tipifarnib (a potent and selective inhibitor of farnesyltransferase, a critical enzyme for HRAS activity) and alpelisib, a PI3K inhibitor. Methods: The KURRENT trial (KO-TIP-013, NCT04809233) is an ongoing multicenter, open-label, 2-cohort, phase 1/2 trial designed to evaluate the safety of the combination of tipifarnib and alpelisib, determine the recommended combination dose(s) regimen, and evaluate preliminary anti-tumor activity in patients with recurrent/metastatic (R/M) HNSCC whose tumors are dependent upon HRAS and/or PIK3CA signaling. The trial will enroll 40 HNSCC patients; 20 each into two biomarker defined cohorts (Cohort 1; PIK3CA; Cohort 2; HRAS). Participants must have documented treatment failure from at least one prior therapy in the R/M setting and have measurable disease by RECIST v1.1. At the starting dose level, participants will receive tipifarnib at 300 mg twice daily on days 1-7 and 15-21 and alpelisib 200 mg each morning continuously during a 28-day cycle. The trial will use an adaptive dose escalation design (based on a Bayesian logistic regression model) to characterize safety, tolerability, and clinical activity of the combination to identify the Optimal Biologically Active Dose (OBAD) while maintaining a dose limiting toxicity (DLT) rate < 33%. No formal interim analysis is planned as the model-based dose escalation process requires decisions based on real-time evaluation of aggregate toxicity and efficacy data. All observed/available data among each cohort will be evaluated before choosing the combination dose for a subsequent cohort. Enrollment into the PIK3CA cohort began in October 2021. Clinical trial information: NCT04809233.
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Affiliation(s)
| | | | - Alan Loh Ho
- Solid Tumor Oncology Division, Head and Neck Service, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Maura L. Gillison
- Department of Thoracic/Head and Neck Medical Oncology, University of Texas MD Anderson Cancer Center, Houston, TX
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Kessler L, Malik S, Leoni M, Burrows F. Potential of Farnesyl Transferase Inhibitors in Combination Regimens in Squamous Cell Carcinomas. Cancers (Basel) 2021; 13:cancers13215310. [PMID: 34771475 PMCID: PMC8582567 DOI: 10.3390/cancers13215310] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 10/14/2021] [Accepted: 10/19/2021] [Indexed: 11/16/2022] Open
Abstract
Current therapies for recurrent and metastatic SCC are associated with poor outcomes, and options for later lines of treatment are limited. Insights into potential therapeutic targets, as well as mechanisms of resistance to available therapies, have begun to be elucidated, creating the basis for exploration of combination approaches to drive better patient outcomes. Tipifarnib, a farnesyl transferase inhibitor (FTI), is a small molecule drug that has demonstrated encouraging clinical activity in a genetically-defined subset of head and neck squamous cell carcinoma (HNSCC)-specifically, tumors that express a mutation in the HRAS protooncogene. More recently, bioinformatic analyses and results from patient-derived xenograft modeling indicate that HRAS pathway dependency may extend to a broader subpopulation of SCCs beyond HRAS mutants in the context of combination with agents such as cisplatin, cetuximab, or alpelisib. In addition, tipifarnib can also inactivate additional farnesylated proteins implicated in resistance to approved therapies, including immunotherapies, through a variety of distinct mechanisms, suggesting that tipifarnib could serve as an anchor for combination regimens in SCCs and other tumor types.
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Le X, Marcelo K, Coleman N, Hopkins J, Balsara B, Leoni M, Spelman A, Hong D, Albacker L, Gillison M. 893P Clinico-genetic profiling of HRAS mutant head and neck squamous cell carcinoma (HNSCC). Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.1303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Ho AL, Brana I, Haddad R, Bauman J, Bible K, Oosting S, Wong DJ, Ahn MJ, Boni V, Even C, Fayette J, Flor MJ, Harrington K, Hong DS, Kim SB, Licitra L, Nixon I, Saba NF, Hackenberg S, Specenier P, Worden F, Balsara B, Leoni M, Martell B, Scholz C, Gualberto A. Tipifarnib in Head and Neck Squamous Cell Carcinoma With HRAS Mutations. J Clin Oncol 2021; 39:1856-1864. [PMID: 33750196 PMCID: PMC8189627 DOI: 10.1200/jco.20.02903] [Citation(s) in RCA: 85] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Mutations in the HRAS (mHRAS) proto-oncogene occur in 4%-8% of patients with recurrent and/or metastatic (R/M) head and neck squamous cell carcinoma (HNSCC). Tipifarnib is a farnesyltransferase inhibitor that disrupts HRAS function. We evaluated the efficacy of tipifarnib in patients with R/M mHRAS HNSCC.
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Affiliation(s)
- Alan L. Ho
- Memorial Sloan Kettering Cancer Center, New York, NY
- Department of Medicine, Weill Cornell Medical College, New York City, NY
| | - Irene Brana
- Vall D'Hebron Institute of Oncology, Barcelona, Spain
| | | | | | | | - Sjoukje Oosting
- University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | | | | | | | | | | | | | | | - David S. Hong
- University of Texas, MD Anderson Cancer Center, Houston, Texas
| | | | - Lisa Licitra
- Fondazione IRCCS Istituto Nazionale Tumori Milano and University of Milan, Italy
| | - Ioanna Nixon
- Beatson West of Scotland Cancer Centre, Glasgow, Scotland
| | - Nabil F. Saba
- Winship Cancer Institute of Emory University, Atlanta, GA
| | - Stephan Hackenberg
- Universitätsklinikum Würzburg, ENT Department and Early Clinical Trial Unit, Würzburg, Germany
| | | | - Francis Worden
- University of Michigan Comprehensive Cancer Center, Ann Arbor, MI
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Haddad RI, Adkins D, Licitra LF, Bruce JY, Gillison ML, Ahn MJ, Hsieh CY, Wang HM, Psyrri A, Machiels JPH, Balsara B, Leoni M, Harrington KJ, Saba NF, Ho AL. The AIM-HN Study: A pivotal study evaluating the efficacy of tipifarnib in patients with recurrent or metastatic head and neck squamous cell carcinoma with HRAS mutations. J Clin Oncol 2021. [DOI: 10.1200/jco.2021.39.15_suppl.tps6087] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
TPS6087 Background: Head and neck squamous cell carcinoma (HNSCC) accounts for more than 830,000 new cancer cases each year worldwide. The prognosis for recurrent and/or metastatic (R/M) HNSCC patients remains poor with an estimated median overall survival (mOS) of 7-15 months in the first line setting and 5-8 months in the second line setting and beyond. Approximately 4-8% of HNSCC tumors are driven by gain-of-function mutations in the HRAS (m HRAS) proto-oncogene. Tipifarnib is a potent and selective farnesyltransferase inhibitor that disrupts HRAS function by blocking required protein membrane localization, and subsequent cellular growth and survival. Data from a prior phase 2 study (RUN-HN; NCT02383927) of tipifarnib in R/M m HRAS HNSCC patients in the second line plus setting demonstrated encouraging efficacy, with an objective response rate (ORR) of 55% and mOS of 15.4 months for patients with mHRAS variant allele frequency (VAF) ≥ 20%, providing support for pursuing a pivotal trial in this patient population. Methods: AIM-HN (NCT03719690) is a global, open-label single-arm pivotal study evaluating the efficacy and tolerability of tipifarnib in second line plus R/M m HRAS HNSCC patients. The primary objective is to determine the ORR in patients with a m HRAS VAF ≥ 20% (High VAF population), as assessed using RECIST v1.1 by Independent Review Facility. Key secondary objectives include the ORR for patients of all VAF levels, and the duration of responses for both VAF≥ 20% and all VAF levels. Key inclusion criteria include: histologically confirmed head and neck cancer of squamous histology not amenable to local therapy with curative intent; known tumor missense HRAS mutation (with VAF determined and available) detected by Next Generation Sequencing; ECOG performance status of 0-1; measurable disease by RECIST v1.1; and adequate organ function. Key exclusion criteria include: salivary gland, thyroid, (primary) cutaneous squamous or non-squamous histologies; intolerable Grade 2 or ≥ Grade 3 neuropathy or unstable neurological symptoms within 4 weeks of Cycle 1 Day 1; or active, uncontrolled infections requiring systemic therapy. Tipifarnib is administered at a dose of 600 mg, orally with a meal twice a day for 7 days in alternating weeks (Days 1-7 and 15-21) of 28-day cycles until discontinuation criteria are met. All patients are being followed for safety through the End of Treatment visit, roughly 30 days after treatment discontinuation or immediately before the administration of another anticancer treatment, whichever occurs first. Upon therapy discontinuation, all patients are being followed approximately every 12 weeks for survival status, and the use of subsequent therapy. The IDMB last reviewed data in October 2020 and recommended the trial continue as planned. AIM-HN is continuing to enroll patients globally. Ho et al, JCO, accepted. Clinical trial information: NCT03719690.
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Affiliation(s)
- Robert I. Haddad
- Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA
| | | | - Lisa F. Licitra
- Head and Neck Medical Oncology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, University of Milan, Milan, Italy
| | | | | | | | | | | | - Amanda Psyrri
- National Kapodistrian University of Athens, Attikon Hospital, Athens, Greece
| | | | | | | | - Kevin Joseph Harrington
- The Royal Marsden//The Institute of Cancer Research NIHR Biomedical Research Centre, London, United Kingdom
| | - Nabil F. Saba
- Winship Cancer Institute of Emory University, Atlanta, GA
| | - Alan Loh Ho
- Memorial Sloan Kettering Cancer Center, New York, NY
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Porcu P, Hudgens S, Horwitz S, Quaglino P, Cowan R, Geskin L, Beylot-Barry M, Floden L, Bagot M, Tsianakas A, Moskowitz A, Huen A, Dreno B, Dalle S, Caballero D, Leoni M, Dale S, Herr F, Duvic M. Quality of Life Effect of the Anti-CCR4 Monoclonal Antibody Mogamulizumab Versus Vorinostat in Patients With Cutaneous T-cell Lymphoma. Clin Lymphoma Myeloma Leuk 2020; 21:97-105. [PMID: 33158772 DOI: 10.1016/j.clml.2020.09.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 08/31/2020] [Accepted: 09/03/2020] [Indexed: 01/24/2023]
Abstract
BACKGROUND Sézary syndrome (SS) and mycosis fungoides (MF), 2 types of cutaneous T-cell lymphoma, cause significant morbidity and adversely affect patients' quality of life (QoL). The present study assessed the QoL measurement changes in patients receiving mogamulizumab versus vorinostat. PATIENTS AND METHODS A multicenter phase III trial was conducted of patients with stage IB-IV MF/SS with ≥ 1 failed systemic therapy. The QoL measures included Skindex-29 and the Functional Assessment of Cancer Therapy-General. The symptoms, function, and QoL subdomains were longitudinally modeled using mixed models with prespecified covariates. Meaningful change thresholds (MCTs) were defined using distribution-based methods. The categorical changes by group over time and the time to clinically meaningful worsening were analyzed. RESULTS Of the 372 randomized patients, mogamulizumab demonstrated improvement in Skindex-29 symptoms (cycles 3, 5, and 7; P < .05) and functional (cycles 3 and 5; P < .05) scales. A significantly greater proportion of mogamulizumab-treated patients improved by MCTs or more from baseline in the Skindex-29 symptoms domain (cycles 3, 5, 7, and 11) and functioning domain (cycle 5). Significant differences in the Functional Assessment of Cancer Therapy-General physical well-being (cycles 1, 3, and 5; P < .05) were observed in favor of mogamulizumab and a greater proportion of patients had declined by MCTs or more at cycles 1, 3, 5, and 7 with vorinostat treatment. The median time to symptom worsening using Skindex-29 was 27.4 months for mogamulizumab versus 6.6 months for vorinostat. In the patients with SS, the time to worsening favored mogamulizumab (P < .005) for all Skindex-29 domains. The time to worsening was similar for the 2 MF treatment arms. CONCLUSION The symptoms, function, and overall QoL of patients with MF/SS favored mogamulizumab over vorinostat across all time points. Patients with the greatest symptom burden and functional impairment derived the most QoL benefit from mogamulizumab.
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Affiliation(s)
- Pierluigi Porcu
- Division of Hematologic Malignancies and Hematopoietic Stem Cell Transplantation, Department of Medical Oncology, Sidney Kimmel Center, Thomas Jefferson University, Philadelphia, PA.
| | | | - Steven Horwitz
- Lymphoma Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Pietro Quaglino
- Department of Medical Sciences, Dermatologic Clinic, University of Turin, Turin, Italy
| | - Richard Cowan
- Cancer Research UK - Christie Hospital Foundation NHS Trust, Manchester, UK
| | - Larisa Geskin
- Department of Dermatology, New York Presbyterian Hospital, New York, NY
| | | | | | - Martine Bagot
- Service de Dermatologie, Hôpital Saint Louis, Paris, France
| | - Athanasios Tsianakas
- Department of Dermatology, Specialist Clinic Bad Bentheim, Bad Bentheim, Germany
| | - Alison Moskowitz
- Lymphoma Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Auris Huen
- Department of Dermatology, University of Texas MD Anderson Cancer Center, Houston, TX
| | - Brigitte Dreno
- Onco-Dermatology Department, CHU de Nantes - Nantes Hospital, Nantes, France
| | - Stéphane Dalle
- Immucare, Hospices Civils de Lyon, Cancer Research Center of Lyon, Lyon University, Pierre-Bénite, France
| | - Dolores Caballero
- Servicio de Hematología, Hospital Clínico Universitario de Salamanca, Salamanca, Spain
| | - Mollie Leoni
- Kyowa Kirin Pharmaceutical Development, Inc, Princeton, NJ
| | - Stephen Dale
- Kyowa Kirin Pharmaceutical Development, Inc, Princeton, NJ
| | | | - Madeleine Duvic
- Department of Dermatology, University of Texas MD Anderson Cancer Center, Houston, TX
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Akilov O, Geskin L, Leoni M, Ito T, Dwyer K, Herr F, Musiek A. 531 Impact of concomitant steroids on mogamulizumab efficacy in MAVORIC. J Invest Dermatol 2020. [DOI: 10.1016/j.jid.2020.03.540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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13
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Petras A, Echeverria Ferrero M, Leoni M, Guerra JM, Jansson J, Gerardo-Giorda L. P2431Stay on the safe side: in-silico assessment of ablation protocols to prevent steam pops during radiofrequency ablation. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.0764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Background
Steam pops (SP) are among the most serious complications of radiofrequency ablation (RFA) due to its potential to cause myocardial tear or tamponade. SP occur when the tissue overheats, causing its water content to transform into steam and explode. Ablation parameters are critical in order to obtain an optimal lesion size while avoiding the occurrence of SP. However, the interaction between ablation settings and the physical parameters that predispose to SP occurrence during irrigated RFA are not fully understood.
Purpose
To characterize regularly used ablation protocols by means of a computational model, in order to achieve optimal lesion size while avoiding SP occurrence.
Methods
The in-silico evaluation is performed using our previously developed computational irrigated RFA model. Our model takes into account the blood-saline interaction as well as the mechanical deformation of the tissue due to the contact with the catheter tip. We test the effects of applied power and contact force on two catheter tip designs (spherical and cylindrical) and two substrates, simulated human atrium and ventricle, during 30 sec applications. A fixed blood flow and catheter-tip saline irrigation (0.5m/s and 17mL/min, respectively) are considered. We simulate human tissue by using the biophysical, mechanical and physiological properties found in the literature. SP occurrence is predicted when the temperature within the tissue reaches 100°C.
Results
Based on the interaction of power and contact force, four risk maps are constructed encompassing the two catheter-tip designs and the two simulated tissues. The maps allow the identification of those ablation protocols (contact force and delivered power) that can potentially result on SP. They correspond to that area of critical temperature values where the temperature within the tissue reach the established criteria for SP occurrence. We also present the lesion size dimensions of ablation protocols that avoid the formation of steam pops.
Conclusion
Our results indicate that the applied power has a strong impact in the formation of SP for a cylindrical catheter, while a combination of contact force and power is important to avoid risks in the case of the spherical catheter tip. The tissue characteristics do not affect significantly the SP occurrence, in agreement with experimental literature. However, the resulting lesion size appears to be larger in the simulated human atrium in comparison to the simulated human ventricle.
Acknowledgement/Funding
BERC 2018-2021, SEV-2017-0718
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Affiliation(s)
- A Petras
- BCAM Basque Center for Applied Mathematics, Bilbao, Spain
| | | | - M Leoni
- Royal Institute of Technology, Stockholm, Sweden
| | - J M Guerra
- Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - J Jansson
- Royal Institute of Technology, Stockholm, Sweden
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Kim Y, Ortiz-Romero P, Pro B, Sokol L, Scarisbrick J, Musiek A, Vermeer M, Dummer R, Halwani A, Fierro M, Moriya J, Leoni M, Bagot M. TIME TO NEXT TREATMENT IN PATIENTS WITH PREVIOUSLY TREATED CUTANEOUS T-CELL LYMPHOMA (CTCL) RECEIVING MOGAMULIZUMAB OR VORINOSTAT: A POST-HOC ANALYSIS OF THE MAVORIC STUDY. Hematol Oncol 2019. [DOI: 10.1002/hon.95_2630] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Y.H. Kim
- Dermatology; Stanford University School of Medicine; Stanford United States
| | - P.L. Ortiz-Romero
- Dermatología; Institute i+12, Hospital Universitario 12 de Octubre, Universidad Complutense; Madrid Spain
| | - B. Pro
- Oncology; Northwestern University; Chicago United States
| | - L. Sokol
- Hematology/Oncology; H. Lee Moffitt Cancer Center; Tampa United States
| | - J. Scarisbrick
- Lymphoma Service; University Hospitals Birmingham; Birmingham United Kingdom
| | - A. Musiek
- Dermatology; Washington University; St. Louis United States
| | - M. Vermeer
- Dermatology; Leiden University Medical Center; Leiden Netherlands
| | - R. Dummer
- Dermatology; UniversitatsSpital Zurich; Zurich Switzerland
| | - A. Halwani
- Hematology; University of Utah; Salt Lake City United States
| | - M. Fierro
- Scienze Mediche; Università di Torino; Torino Italy
| | - J. Moriya
- Biostatistics; Kyowa Kirin Pharmaceutical Development, Inc.; Princeton United States
| | - M. Leoni
- Medical Sciences; Kyowa Kirin Pharmaceutical Development, Inc.; Princeton United States
| | - M. Bagot
- Service de Dermatologie; Hôpital Saint Louis, APHP, Inserm U976, Université Paris 7; Paris France
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Scarisbrick J, Geskin L, Bagot M, Fisher D, Elmets C, Duvic M, Beylot-Barry M, Kim E, Moriya J, Leoni M, Zinzani P. EFFICACY OF MOGAMULIZUMAB IN PREVIOUSLY TREATED PATIENTS WITH LESS ADVANCED MYCOSIS FUNGOIDES: RESULTS FROM THE MAVORIC STUDY. Hematol Oncol 2019. [DOI: 10.1002/hon.34_2629] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- J. Scarisbrick
- Lymphoma Service; University Hospital Birmingham; Birmingham United Kingdom
| | - L.J. Geskin
- Dermatology; Columbia University Medical Center; New York United States
| | - M. Bagot
- Service de Dermatologie; Hôpital Saint Louis, APHP, Inserm U976, Université Paris 7; Paris France
| | - D.C. Fisher
- Hematologic Oncology; Dana-Farber Cancer Institute; Boston United States
| | - C. Elmets
- Dermatology; University of Alabama at Birmingham; Birmingham United States
| | - M. Duvic
- Dermatology; University of Texas MD Anderson Cancer Center; Houston United States
| | - M. Beylot-Barry
- Service de Dermatologie; CHU de Bordeaux - Hôpital Saint-André; Bordeaux France
| | - E.J. Kim
- Dermatology; University of Pennsylvania; Philadelphia United States
| | - J. Moriya
- Biostatistics; Kyowa Kirin Pharmaceutical Development, Inc.; Princeton United States
| | - M. Leoni
- Medical Sciences; Kyowa Kirin Pharmaceutical Development, Inc.; Princeton United States
| | - P.L. Zinzani
- Istituto di Ematologia; Università di Bologna; Bologna Italy
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Geskin LJ, Scarisbrick J, Bagot M, Fisher DC, Elmets C, Duvic M, Beylot-Barry M, Kim EJ, Moriya J, Leoni M, Zinzani PL. Efficacy of mogamulizumab in previously treated patients with less advanced mycosis fungoides: Results from the MAVORIC study. J Clin Oncol 2019. [DOI: 10.1200/jco.2019.37.15_suppl.e19031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
e19031 Background: In the MAVORIC Phase 3 study, patients (pts) with previously treated mycosis fungoides (MF)/Sezary syndrome (SS) stage IB-IVB who received mogamulizumab (MOGA) had significantly prolonged progression-free survival and greater overall response rates (ORR) compared to pts on vorinostat (VORI) (Kim et al. Lancet Oncol 2018). Less advanced MF (stage IB/IIA) is a chronic skin malignancy that can involve blood and nodes and may require many lines of systemic therapy over the disease course. This post-hoc analysis specifically examined efficacy and safety of the recently approved MOGA in stage IB/IIA MF pts. Methods: In MAVORIC, stage IB-IVB MF/SS pts who were treated with ≥1 prior systemic therapy were randomized to MOGA or oral VORI. In the post-hoc analysis, time to next treatment (TTNT) was defined as time to any therapy excluding topical steroids or focal radiation treatment. ORR was based on global composite response in 4 disease compartments – skin, blood, lymph nodes, and viscera – achieved at 2 consecutive visits at least 8 weeks apart. Individual compartment responses were also assessed. Results: A total of 85 pts with stage IB/IIA MF were included (MOGA, IB n = 15, IIA n = 21; VORI, IB n = 27, IIA n = 22). Overall, 24% (10/42) of IB pts and 28% (12/43) of IIA pts had received ≥6 prior therapies. Median TTNT with MOGA in IB pts was 11.5 months (mo) (95% CI, 1.4,16.0) compared to 3.1 mo (95% CI, 2.7, 5.3) with VORI; in IIA pts, median TTNT was 10.1 mo (95% CI, 5.5, 12.6) and 4.9 mo (95% CI, 2.4, 8.0), respectively. ORR in IB pts receiving MOGA and VORI was 20% (3/15) and 18.5% (5/27), respectively; ORR in IIA was 19% (4/21) and 0% (0/22), respectively. With respect to stage IB and IIA, compartmental response rates with MOGA were: skin (20% [3/15], 38% [8/21]), blood (0% [0/2], 75% [6/8]), and lymph node (0% [0/0], 15% [3/20]), respectively. Adverse events were generally manageable and consistent with the ITT population. Conclusions: Though MAVORIC was not powered to determine treatment effect by disease stage, this post-hoc analysis of TTNT, ORR, and compartmental response in stage IB/IIA demonstrates meaningful clinical benefit with MOGA in previously treated, less advanced MF pts. Clinical trial information: NCT01728805.
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Affiliation(s)
| | | | - Martine Bagot
- Hôpital Saint Louis, APHP, Inserm U976, Université Paris, Paris, France
| | | | - Craig Elmets
- University of Alabama at Birmingham, Birmingham, AL
| | - Madeleine Duvic
- The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Marie Beylot-Barry
- Dermatology, Hôpital Saint-André, CHU de Bordeaux; Université de Bordeaux, Bordeaux, France
| | | | - Junji Moriya
- Kyowa Kirin Pharmaceutical Development, Inc., Princeton, NJ
| | - Mollie Leoni
- Kyowa Kirin Pharmaceutical Development, Inc., Princeton, NJ
| | - Pier Luigi Zinzani
- Institute of Hematology Seràgnoli, University of Bologna, Bologna, Italy
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Pro B, Kim YH, Ortiz-Romero PL, Sokol L, Scarisbrick J, Musiek A, Vermeer M, Dummer R, Halwani AS, Fierro MT, Moriya J, Leoni M, Bagot M. Time to next treatment in patients with previously treated cutaneous T-cell lymphoma (CTCL) receiving mogamulizumab or vorinostat: A MAVORIC post-hoc analysis. J Clin Oncol 2019. [DOI: 10.1200/jco.2019.37.15_suppl.7539] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
7539 Background: CTCLs are chronic skin malignancies, characterized by relapsing/remitting behavior and progressive resistance to treatments, with a reported median time to next treatment (TTNT; ie, systemic treatment excluding topical steroids) in mycosis fungoides (MF) and Sezary syndrome (SS) of 5.4 months (mo) (Hughes et al. Blood, 2015). The phase 3 MAVORIC study demonstrated mogamulizumab (MOGA) was superior to vorinostat (VORI) in progression-free survival (median 7.7 vs 3.1 mo, P<0.0001) and confirmed overall response rates (28% vs 4.8%, P<0.0001) in previously treated patients with MF/SS (Kim et al. Lancet Oncol 2018). This post-hoc analysis examines TTNT to further explore the patient clinical experience. Methods: Patients with MF/SS who were treated with ≥1 prior systemic therapy were randomized 1:1 to receive MOGA (1.0 mg/kg, administered once weekly for the first 28-day cycle, then on Days 1 and 15 of subsequent cycles) or oral VORI (400 mg daily). Patients on VORI were permitted to crossover to MOGA upon approval. TTNT was defined as time to any therapy excluding topical steroids or focal radiation. The length of TTNT was assessed overall and by disease stage grouping (IB/II and III/IV) and disease type (MF and SS). Results: Median TTNT for the full ITT population was longer with MOGA at 11 mo (95% CI, 8.8-12.6) compared to VORI at 3.5 mo and consistently longer for MOGA vs VORI across disease stage grouping or by disease type (Table). Conclusions: TTNT in MF/SS represents an additional measure of clinical benefit and disease control in patients who may have progressed based on strict protocol definitions of progression. This post hoc analysis showing a prolonged TTNT across disease stages and types supports a clinical benefit for MF and SS patients who receive MOGA. Clinical trial information: NCT01728805. [Table: see text]
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Affiliation(s)
| | | | - Pablo L. Ortiz-Romero
- Institute i+12, Hospital 12 de Octubre Medical School, University Complutense, Madrid, Spain
| | | | | | | | | | - Reinhard Dummer
- Department of Dermatology, University Hospital Zürich Skin Cancer Center, Zürich, Switzerland
| | | | | | - Junji Moriya
- Kyowa Kirin Pharmaceutical Development, Inc., Princeton, NJ
| | - Mollie Leoni
- Kyowa Kirin Pharmaceutical Development, Inc., Princeton, NJ
| | - Martine Bagot
- Hôpital Saint Louis, APHP, Inserm U976, Université Paris, Paris, France
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18
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Scarisbrick J, Geskin L, Bagot M, Fisher D, Elmets C, Duvic M, Beylot-Barry M, Kim E, Moriya J, Leoni M, Zinzani P. Efficacy of mogamulizumab in previously treated patients with less advanced mycosis fungoides (MF): results from the MAVORIC study. Eur J Cancer 2019. [DOI: 10.1016/s0959-8049(19)30596-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Phillips AA, Fields PA, Hermine O, Ramos JC, Beltran BE, Pereira J, Wandroo F, Feldman T, Taylor GP, Sawas A, Humphrey J, Kurman M, Moriya J, Dwyer K, Leoni M, Conlon K, Cook L, Gonsky J, Horwitz SM. Mogamulizumab versus investigator's choice of chemotherapy regimen in relapsed/refractory adult T-cell leukemia/lymphoma. Haematologica 2018; 104:993-1003. [PMID: 30573506 PMCID: PMC6518882 DOI: 10.3324/haematol.2018.205096] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Accepted: 12/18/2018] [Indexed: 12/30/2022] Open
Abstract
Mogamulizumab, a humanized defucosylated anti-C-C chemokine receptor 4 monoclonal antibody, has been approved in Japan for the treatment of C-C chemokine receptor 4-positive adult T-cell leukemia/lymphoma (ATL). This phase II study evaluated efficacy and safety of mogamulizumab in ATL patients with acute, lymphoma, and chronic subtypes with relapsed/refractory, aggressive disease in the US, Europe, and Latin America. With stratification by subtype, patients were randomized 2:1 to intravenous mogamulizumab 1.0 mg/kg once weekly for 4 weeks and biweekly thereafter (n=47) or investigator’s choice of chemotherapy (n=24). The primary end point was confirmed overall response rate (cORR) confirmed on a subsequent assessment at 8 weeks by blinded independent review. ORR was 11% (95%CI: 4-23%) and 0% (95%CI: 0-14%) in the mogamulizumab and chemotherapy arms, respectively. Best response was 28% and 8% in the respective arms. The observed hazard ratio for progression-free survival was 0.71 (95%CI: 0.41-1.21) and, after post hoc adjustment for performance status imbalance, 0.57 (95%CI: 0.337-0.983). The most frequent treatment-related adverse (grade ≥3) events with mogamulizumab were infusion-related reaction and thrombocytopenia (each 9%). Relapsed/refractory ATL is an aggressive, poor prognosis disease with a high unmet need. Investigator’s choice chemotherapy did not result in tumor response in this trial; however, mogamulizumab treatment resulted in 11% cORR, with a tolerable safety profile.
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Affiliation(s)
- Adrienne A Phillips
- Division of Hematology and Medical Oncology, Weill Cornell Medical College, New York Presbyterian Hospital, New York, NY, USA
| | - Paul A Fields
- Department of Haematology Guy's and St Thomas' Hospitals NHS Trust Hospital, London, UK
| | - Olivier Hermine
- Department of Hematology, Necker University Hospital, Paris, France
| | - Juan C Ramos
- Division of Hematology/Oncology, University of Miami Miller School of Medicine, Sylvester Comprehensive Cancer Center, FL, USA
| | - Brady E Beltran
- Hospital Nacional Edgardo Rebagliati Martins and Centro de Investigación de Medicina de Precision, Universidad de San Martin de Porres, Lima, Peru
| | | | - Farooq Wandroo
- Sandwell and West Birmingham Hospitals NHS Trust, West Bromwich, and University of Birmingham, UK
| | | | - Graham P Taylor
- National Centre for Human Retrovirology, St Mary's Hospital, Imperial College Healthcare NHS Trust, London, UK
| | - Ahmed Sawas
- Center for Lymphoid Malignancies, Columbia University Irving Medical Center, New York, NY, USA
| | | | | | | | | | | | - Kevin Conlon
- Warren Grant Magnuson Clinical Center, National Cancer Institute, Bethesda, MD, USA
| | - Lucy Cook
- Department of Haematology and National Centre for Human Retrovirology, Imperial College Healthcare NHS Trust, London, UK
| | - Jason Gonsky
- Division of Hematology/Oncology, Department of Medicine, New York City Health + Hospitals/Kings County and SUNY Downstate Medical Center, Brooklyn, NY, USA
| | - Steven M Horwitz
- Hematology/Oncology, Memorial Sloan-Kettering Cancer Center, New York, NY, USA
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Porcu P, Hudgens S, Quaglino P, Cowan R, Floden L, Tsianakas A, Leoni M, Dale S, Duvic M. Quality of life in cutaneous T cell lymphoma patients treated with the anti-CCR4 monoclonal antibody mogamulizumab versus vorinostat: Results from MAVORIC. Eur J Cancer 2018. [DOI: 10.1016/j.ejca.2018.07.309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Porcu P, Hudgens S, Quaglino P, Cowan R, Floden L, Leoni M, Dale S, Duvic M. Quality of life in cutaneous T-cell lymphoma subjects treated with anti-CCR4 monoclonal antibody mogamulizumab versus vorinostat: Results from the phase 3 MAVORIC trial. J Clin Oncol 2018. [DOI: 10.1200/jco.2018.36.15_suppl.7577] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
| | | | - Pietro Quaglino
- Department of Medical Sciences, Dermatologic Clinic, University of Turin, Turin, Italy
| | - Richard Cowan
- The Christie NHS Foundation Trust, Manchester, United Kingdom
| | | | - Mollie Leoni
- Kyowa Kirin Pharmaceutical Development, Inc., Princeton, NJ
| | - Stephen Dale
- Kyowa Kirin Pharmaceutical Development, Inc., Princeton, NJ
| | - Madeleine Duvic
- The University of Texas MD Anderson Cancer Center, Houston, TX
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Palazzi M, Valdagni R, Poli M, Buffoli A, Leoni M, Vavassori V, Di Lorenzo I, Corbella F, Nava S, Cazzaniga LF. The Role of Radiotherapy in the Treatment of Stage III Non-Small Cell Lung Cancer: A Survey of Clinical Practices in Lombardy, Italy, by the Airo-Lombardia Cooperative Group. Tumori 2018; 80:286-9. [PMID: 7974800 DOI: 10.1177/030089169408000409] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Aims and background The role of radiotherapy in the treatment of stage III non-small cell lung cancer is controversial. The aim of this survey was to investigate the use of this modality in current clinical practice in Lombardy, a highly industrialized region of northern Italy. Methods A questionnaire was sent to all 13 radiotherapy centers in Lombardy, covering statistical, clinical, technical and strategical aspects, and the responses were analyzed. Results A wide range of attitudes was observed among participating radiation oncologists; the percentage of cases treated with curative intent varied largely between centers (4-100%), as did the proportion of patients given to radiation only rather than combined modality treatment (5-100% vs 0-90%). Conclusions An urgent need exists for better cooperation between all clinicians involved in lung cancer treatment, pursuing the goals of a more uniform clinical practice and a more aggressive clinical research attitude.
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Affiliation(s)
- M Palazzi
- Department of Radiotherapy, Istituto Nazionale Tumori, Milano
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Abstract
Primary lymphoma of the central nervous system (CNS) represents a pathology that is no longer considered rare, also in the light of its high correlation with the human immunodeficiency virus (HIV) syndrome reported recently. Often the correct diagnosis of the disease is difficult to reach, owing to the wide spectrum of non-lymphoma pathologies from which it should be differentiated and the invasiveness of some diagnostic techniques. The biologic aggressiveness of the neoplasm often makes a combined radio-chemotherapeutic approach necessary. In contrast, surgical resection does not seem to provide any significant benefit. The clinical experience reported here, together with a review of the most recent literature, lead the authors to suggest the opportunity of treating primary lymphoma of the CNS with the most active and modern chemotherapeutic protocols in association with traditional treatments to obtain an improvement in overall survival.
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MESH Headings
- Aged
- Antineoplastic Combined Chemotherapy Protocols/therapeutic use
- Biopsy
- Brain Neoplasms/mortality
- Brain Neoplasms/pathology
- Brain Neoplasms/therapy
- Female
- Humans
- Leukemia, Lymphocytic, Chronic, B-Cell/mortality
- Leukemia, Lymphocytic, Chronic, B-Cell/pathology
- Leukemia, Lymphocytic, Chronic, B-Cell/therapy
- Lymphoma, Large-Cell, Immunoblastic/mortality
- Lymphoma, Large-Cell, Immunoblastic/pathology
- Lymphoma, Large-Cell, Immunoblastic/therapy
- Lymphoma, Non-Hodgkin/mortality
- Lymphoma, Non-Hodgkin/pathology
- Lymphoma, Non-Hodgkin/therapy
- Male
- Middle Aged
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Affiliation(s)
- M Amadori
- Oncology Department, Pierantoni Hospital, Forlì, Italy
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Abstract
The goal of this pilot study was to verify the efficacy of the association of cisplatin plus radiotherapy in the treatment of lung cancer. Thirty-seven consecutive patients entered the study. They were treated with radiotherapy (four weekly doses of 2.5 Gy for a total of 50 Gy) and cisplatin once weekly (12 mg/m2). Partial remission was obtained in 15 patients, and 1 patient had a complete remission. Three patients previously inoperable underwent surgical treatment. The actuarial survival curve of the 29 evaluable patients showed a mean survival of 8.5 months. The mean survival of the latter is not evaluable because half of the patients are still alive after 12 to 30 months. No hematologic or renal toxicity was observed with the above schedule.
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Affiliation(s)
- E Soresi
- Divisione Pneumologica, Ospedale Niguarda, Milano, Italy
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Benedetti M, Torresani E, Leoni M, Fontanari V, Bandini M, Pederzolli C, Potrich C. The effect of post-sintering treatments on the fatigue and biological behavior of Ti-6Al-4V ELI parts made by selective laser melting. J Mech Behav Biomed Mater 2017; 71:295-306. [DOI: 10.1016/j.jmbbm.2017.03.024] [Citation(s) in RCA: 120] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Revised: 02/20/2017] [Accepted: 03/25/2017] [Indexed: 11/28/2022]
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Malanchin D, Caruso R, Nanni M, Grassi L, Piazza G, Croce E, Leoni M, Berretti E, Negrelli L, Battista S, Faccini A, Dall’Olio R, Costa S, Recla E, Rossi G, Colla C. Preliminay study for the Italian validation of the screen for cognitive impairment in psychiatry (SCIP). Eur Psychiatry 2017. [DOI: 10.1016/j.eurpsy.2017.02.274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Abstract
IntroductionThe screen for cognitive impairment in psychiatry (SCIP) is a brief, accessible scale designed for detecting cognitive deficits in psychiatric disorders.ObjectivesThe objective of this study is to test the SCIP's validity as a cognitive test by comparison with standard neuropsychological scale using the Pearson's correlation.Aims Test the convergent and discriminant validity of the SCIP within the Italian SCIP validation project.MethodsPatients between 18 and 65 years who are in a stable phase of the disease, diagnosed with schizophrenia, schizoaffective disorder or bipolar I disorder were enrolled in this study, from the community mental health department of Ferrara.ResultsThe tests were administered to 110 patients (mean age: 45 ± 11,4) and to 86 controls (mean age: 35 ± 12,6) of both sex. SCIP presents high correlation with the R-BANS total score (P < 0.01) and the subscales (verbal learning test-immediate, working memory, verbal fluency test, verbal learning test-delayed, processing speed test, P < 0.01). There are significant differences (P < 0.01) in all SCIP dimensions between patient and control group (Table 1).ConclusionsOur analysis confirm the results of the English, French and Spanish version of the SCIP regarding convergent and discriminant validity. The SCIP represents a valid, simple and brief screening tool for the cognitive evaluation of patients with schizophrenia-spectrum disorders.Disclosure of interestThe authors have not supplied their declaration of competing interest.
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Leoni M, Sens P. Polarization of cells and soft objects driven by mechanical interactions: consequences for migration and chemotaxis. Phys Rev E Stat Nonlin Soft Matter Phys 2015; 91:022720. [PMID: 25768544 DOI: 10.1103/physreve.91.022720] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2014] [Indexed: 06/04/2023]
Abstract
We study a generic model for the polarization and motility of self-propelled soft objects, biological cells, or biomimetic systems, interacting with a viscous substrate. The active forces generated by the cell on the substrate are modeled by means of oscillating force multipoles at the cell-substrate interface. Symmetry breaking and cell polarization for a range of cell sizes naturally "emerge" from long range mechanical interactions between oscillating units, mediated both by the intracellular medium and the substrate. However, the harnessing of cell polarization for motility requires substrate-mediated interactions. Motility can be optimized by adapting the oscillation frequency to the relaxation time of the system or when the substrate and cell viscosities match. Cellular noise can destroy mechanical coordination between force-generating elements within the cell, resulting in sudden changes of polarization. The persistence of the cell's motion is found to depend on the cell size and the substrate viscosity. Within such a model, chemotactic guidance of cell motion is obtained by directionally modulating the persistence of motion, rather than by modulating the instantaneous cell velocity, in a way that resembles the run and tumble chemotaxis of bacteria.
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Affiliation(s)
- M Leoni
- Laboratoire Gulliver, UMR 7083 CNRS-ESPCI, 10 rue Vauquelin, 75231 Paris Cedex 05, France
| | - P Sens
- Laboratoire Gulliver, UMR 7083 CNRS-ESPCI, 10 rue Vauquelin, 75231 Paris Cedex 05, France
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Barone R, Carrozzi M, Parini R, Battini R, Martinelli D, Elia M, Spada M, Lilliu F, Ciana G, Burlina A, Leuzzi V, Leoni M, Sturiale L, Matthijs G, Jaeken J, Di Rocco M, Garozzo D, Fiumara A. A nationwide survey of PMM2-CDG in Italy: high frequency of a mild neurological variant associated with the L32R mutation. J Neurol 2014; 262:154-64. [DOI: 10.1007/s00415-014-7549-7] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2014] [Revised: 10/15/2014] [Accepted: 10/16/2014] [Indexed: 12/25/2022]
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Galli M, Corti S, Chiodelli G, Cavagnola R, Fioriti F, Leoni M, Uberti M. L18 Development of Good Practice of Care, QOL Model's Oriented, for Persons with HD and Complex needs in a Residential Facility. J Neurol Psychiatry 2014. [DOI: 10.1136/jnnp-2014-309032.255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Fowler J, Tan J, Jackson JM, Meadows K, Jones T, Jarratt M, Leoni M. Treatment of facial erythema in patients with rosacea with topical brimonidine tartrate: correlation of patient satisfaction with standard clinical endpoints of improvement of facial erythema. J Eur Acad Dermatol Venereol 2014; 29:474-81. [PMID: 25074756 DOI: 10.1111/jdv.12587] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2014] [Accepted: 05/12/2014] [Indexed: 11/29/2022]
Abstract
BACKGROUND Once-daily brimonidine tartrate (BT) 0.5% gel was shown to provide significantly greater efficacy vs. vehicle for the treatment of facial erythema in patients with rosacea. OBJECTIVES To demonstrate that patient satisfaction with overall appearance is correlated with reduction in facial erythema, as measured by clinician and patient assessments. METHODS Data from two identical phase III, multicentre, randomized, controlled trials of moderate facial erythema of rosacea (study A: n = 260; study B: n = 293) with topical BT 0.5% compared to vehicle gel once-daily for 4 weeks were analysed. Correlations of Patient's Assessment of Appearance (PAA) with Clinician's Erythema Assessment (CEA) and Patient's Self-Assessment (PSA) of erythema were evaluated by calculation of gamma statistics. RESULTS PAA correlated with CEA post-application on Days 1, 15 and 29 for the intent-to-treat population and provided a median gamma value of 0.57 (min = 0.28, max = 0.61). PAA and PSA was also highly correlated post-application on Days 1, 15 and 29; with a median gamma value of 0.87 (min = 0.66, max = 0.89). Subjects who achieved a clinically meaningful improvement in both CEA and PSA scales were more likely to report satisfaction with the overall appearance of their skin (P < 0.001). CONCLUSIONS Both one- and two-grade improvements in facial erythema assessed by subjects (PSA) and clinicians (CEA) correlate well with PAA, a patient-centered representation of meaningful change.
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Affiliation(s)
- J Fowler
- University of Louisville, Louisville, KY, USA
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Benkali K, Leoni M, Rony F, Bouer R, Fernando A, Graeber M, Wagner N. Comparative pharmacokinetics and bioavailability of brimonidine following ocular and dermal administration of brimonidine tartrate ophthalmic solution and gel in patients with moderate-to-severe facial erythema associated with rosacea. Br J Dermatol 2014; 171:162-9. [PMID: 24506775 DOI: 10.1111/bjd.12881] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/01/2014] [Indexed: 12/17/2022]
Abstract
BACKGROUND Persistent facial erythema is the most common primary pathological feature of rosacea, the only treatment for which is brimonidine tartrate (BT) gel. OBJECTIVES To assess the relative bioavailability of topical BT gel in comparison with the ophthalmic BT solution. METHODS A pharmacokinetic study was conducted to compare intraindividual systemic exposures after dermal application of BT gel (0·07%, 0·18% and 0·5%) under maximal use conditions in patients with moderate-to-severe facial erythema associated with rosacea, and administration of BT ophthalmic solution 0·2%. RESULTS Patients who received BT ophthalmic solution 0·2% three times a day for 1 day had a mean Cmax of 54 ± 28 pg mL(-1) and a mean 0-24-h area under the curve (AUC0-24 h ) of 568 ± 277 pg h mL(-1) . Topical application of BT gel for 29 days resulted in quantifiable systemic exposure in 22%, 48%, 71% and 79% of patients who received BT gel 0·07% twice daily, 0·18% once daily, 0·18% twice daily and 0·5% once daily, respectively. The mean Cmax values for the BT gels ranged between 13 and 25 pg mL(-1) , and mean AUC0-24 h values ranged between 42 and 290 pg h mL(-1) . Systemic exposure increased with applied dose, with no drug accumulation for the duration of treatment. The systemic exposure observed with the highest dose of BT gel (0·5% once daily) was significantly lower than the systemic levels observed for the ophthalmic solution. 0·2% apply for all the concentrations. CONCLUSIONS The systemic safety profile of BT gel may be considered better than that of the ophthalmic solution.
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Affiliation(s)
- K Benkali
- Galderma R&D, Sophia Antipolis, France
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Abstract
We introduce a phenomenological theory for a new class of soft active fluids with the ability to synchronize. Our theoretical framework describes the macroscopic behavior of a collection of interacting anisotropic elements with cyclic internal dynamics and a periodic phase variable. This system can (i) spontaneously undergo a transition to a state with macroscopic orientational order, with the elements aligned, a liquid crystal, (ii) attain another broken symmetry state characterized by synchronization of their phase variables, or (iii) a combination of both types of order. We derive the equations describing a spatially homogeneous system and also study the hydrodynamic fluctuations of the soft modes in some of the ordered states. We find that synchronization can promote or inhibit the transition to a state with orientational order, and vice versa. We provide an explicit microscopic realization: a suspension of microswimmers driven by cyclic strokes.
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Affiliation(s)
- M Leoni
- School of Mathematics, University of Bristol, Clifton, Bristol BS8 1TW, United Kingdom
| | - T B Liverpool
- School of Mathematics, University of Bristol, Clifton, Bristol BS8 1TW, United Kingdom and Isaac Newton Institute for Mathematical Sciences, Cambridge CB3 0EH, United Kingdom
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Conte V, Artoni A, Magnoni S, Leoni M, Capuano L, Civelli V, Stocchetti N. Microparticles in aneurismal subarachnoid hemorrhage: role in acute and delayed cerebral ischemia. Crit Care 2013. [PMCID: PMC3642823 DOI: 10.1186/cc12278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Leoni M, Liverpool TB. Translations and rotations at low Reynolds number: a study of simple model swimmers with finite amplitude strokes. Eur Phys J E Soft Matter 2012; 35:9803. [PMID: 23224111 DOI: 10.1140/epje/i2012-12126-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2012] [Accepted: 10/31/2012] [Indexed: 06/01/2023]
Abstract
We present a simple dynamical model of self-propeller at low Reynolds number in which self-propulsion is achieved via rotary elements (rotors). In this model by changing the sense of rotation of the rotors, the self-propeller can switch between a "linear swimming" phase where it swims in a straight line and a "tumbling" phase in which it can change direction in a controllable way via a global rotation of its body. We study the dynamics of this propeller in detail. To do this we provide an analytic framework within which the non-perturbative aspects of the internal dynamics can be treated allowing us to study the swimming process for arbitrary values of the swimmer deformations. Using it, we compute the averages (over a deformation cycle) of a number of characteristic properties of the swimmer such as its self-propulsion velocity, the dissipated power, its efficiency and the fluid flow patterns it generates. We compare these results to the corresponding average quantities for another class of model swimmers, where self-propulsion is achieved via periodic translations. Finally, we provide an explanation of why non-perturbative results can be obtained for these models using the geometrical language of gauge theory.
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Affiliation(s)
- M Leoni
- Department of Mathematics, University of Bristol, Clifton, UK
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Fowler J, Jarratt M, Moore A, Meadows K, Pollack A, Steinhoff M, Liu Y, Leoni M. Once-daily topical brimonidine tartrate gel 0·5% is a novel treatment for moderate to severe facial erythema of rosacea: results of two multicentre, randomized and vehicle-controlled studies. Br J Dermatol 2012; 166:633-41. [PMID: 22050040 DOI: 10.1111/j.1365-2133.2011.10716.x] [Citation(s) in RCA: 118] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Erythema of rosacea is thought to result from abnormal cutaneous vasomotor activity. Brimonidine tartrate (BT) is a highly selective α(2) -adrenergic receptor agonist with vasoconstrictive activity. OBJECTIVE To determine the optimal concentration and dose regimen of topical BT gel for the treatment of erythema of rosacea and to evaluate its efficacy and safety. METHODS In study A, 122 subjects were randomized to receive a single application of BT 0·07%, 0·18%, 0·5% or vehicle. In study B (4-week treatment and 4-week follow-up), 269 subjects were randomized to receive BT 0·5% once daily, BT 0·18% once daily, vehicle once daily, BT 0·18% twice daily or vehicle twice daily. Evaluations included Clinician's Erythema Assessment (CEA), Patient's Self-Assessment (PSA), Chroma Meter measurements and adverse events. RESULTS In study A, a single application of topical BT gel reduced facial erythema in a dose-dependent fashion. A significant difference between BT 0·5% and vehicle in Chroma Meter redness value was observed from 30min to 12h after application. In study B, BT 0·5% once daily had a statistically superior success profile (defined as a two-grade improvement on both CEA and PSA over 12h) compared with vehicle once daily on days 1, 15 and 29 (all P<0·001). No tachyphylaxis, rebound of erythema or aggravation of other disease signs (telangiectasia, inflammatory lesions) was observed. All regimens were safe and well tolerated with similarly low incidence of adverse events. CONCLUSIONS Once-daily BT gel 0·5% is well tolerated and provides significantly greater efficacy than vehicle gel for the treatment of moderate to severe erythema of rosacea.
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Affiliation(s)
- J Fowler
- University of Louisville, Louisville, KY, USA.
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Leoni M, Liverpool TB. Hydrodynamic synchronization of nonlinear oscillators at low Reynolds number. Phys Rev E Stat Nonlin Soft Matter Phys 2012; 85:040901. [PMID: 22680412 DOI: 10.1103/physreve.85.040901] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2011] [Indexed: 06/01/2023]
Abstract
We introduce a generic model of a weakly nonlinear self-sustained oscillator as a simplified tool to study synchronization in a fluid at low Reynolds number. By averaging over the fast degrees of freedom, we examine the effect of hydrodynamic interactions on the slow dynamics of two oscillators and show that they can lead to synchronization. Furthermore, we find that synchronization is strongly enhanced when the oscillators are nonisochronous, which on the limit cycle means the oscillations have an amplitude-dependent frequency. Nonisochronity is determined by a nonlinear coupling α being nonzero. We find that its (α) sign determines if they synchronize in phase or antiphase. We then study an infinite array of oscillators in the long-wavelength limit, in the presence of noise. For α>0, hydrodynamic interactions can lead to a homogeneous synchronized state. Numerical simulations for a finite number of oscillators confirm this and, when α<0, show the propagation of waves, reminiscent of metachronal coordination.
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Affiliation(s)
- M Leoni
- Department of Mathematics, University of Bristol, Clifton, Bristol BS8 1TW, United Kingdom
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Beyerlein KR, Leoni M, Scardi P. Temperature diffuse scattering of nanocrystals. Acta Crystallogr A 2012; 68:382-92. [DOI: 10.1107/s0108767312009853] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2011] [Accepted: 03/06/2012] [Indexed: 11/10/2022] Open
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Lavrentyeva E, Vassiliev S, Levin E, Tsirlin A, Polyakov S, Leoni M, Napolskii K, Petrii O, Tsirlina G. Smectite clays as the quasi-templates for platinum electrodeposition. Electrochim Acta 2012. [DOI: 10.1016/j.electacta.2011.11.105] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Parmelli E, Papini D, Moja L, Bandieri E, Belfiglio M, Ciccone G, De Palma R, Leoni M, Longo G, Magrini N, Moschetti I, Liberati A. Updating clinical recommendations for breast, colorectal and lung cancer treatments: an opportunity to improve methodology and clinical relevance. Ann Oncol 2010; 22:188-194. [PMID: 20605933 DOI: 10.1093/annonc/mdq324] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND clinical guidelines can improve quality of care summarising available knowledge and proposing recommendations for health care decisions. Being up to date is one of their quality requisites. Little experience is available on when and how guidelines should be updated. We report on the update process of evidence-based clinical recommendations on anticancer drugs. METHODS three multidisciplinary panels, supported by methodology experts, updated the recommendations. The methodologists were in charge of the qualitative and quantitative synthesis of the evidence. The panels were responsible for the final decision about risk/benefit profile of the drugs and strength of the recommendations. The GRADE (Grading of Recommendations Assessment, Development and Evaluation) approach was used. RESULTS six recommendations out of 15 were completely updated in 8 months time. In four cases, the strength of the recommendation changed; in two of them, we moved from a weak to a strong positive one. Despite the increased certainty about the positive risk/benefit profile, this was translated in a change in the strength of the recommendation only in one case out of three. Three recommendations were refined making them more clinically specific. CONCLUSIONS accumulation of evidence is an opportunity for guideline panels to refine methodological rigour, clinical relevance and to foster consensus on recommendations. This requires time and resource investments.
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Affiliation(s)
- E Parmelli
- Department of Oncology, Ematologia e Patologie dell'Apparato Respiratorio, Università degli Studi di Modena and Reggio Emilia, Modena; Centro Cochrane Italiano, Istituto di Ricerche Farmacologiche Mario Negri, Milano.
| | - D Papini
- Agenzia Sanitaria e Sociale Regionale, Regione Emilia Romagna, Bologna
| | - L Moja
- Centro Cochrane Italiano, Istituto di Ricerche Farmacologiche Mario Negri, Milano
| | - E Bandieri
- Centro Valutazione Efficacia Assistenza Sanitaria, Azienda Unità Sanitaria Locale, Modena
| | - M Belfiglio
- Department of Clinical Pharmacology and Epidemiology, Consorzio Mario Negri Sud, Santa Maria Inbaro, Chieti
| | - G Ciccone
- Centro Prevenzione Oncologica, Azienda Ospedaliero-Universitaria San Giovanni Battista, Torino
| | - R De Palma
- Agenzia Sanitaria e Sociale Regionale, Regione Emilia Romagna, Bologna
| | - M Leoni
- Department of Medical Oncology, Azienda Unità Sanitaria Locale, Ravenna
| | - G Longo
- Department of Oncology, Ematologia e Patologie dell'Apparato Respiratorio, Azienda Ospedaliera Universitaria Policlinico, Modena, Italy
| | - N Magrini
- Centro Valutazione Efficacia Assistenza Sanitaria, Azienda Unità Sanitaria Locale, Modena
| | - I Moschetti
- Agenzia Sanitaria e Sociale Regionale, Regione Emilia Romagna, Bologna
| | - A Liberati
- Department of Oncology, Ematologia e Patologie dell'Apparato Respiratorio, Università degli Studi di Modena and Reggio Emilia, Modena; Centro Cochrane Italiano, Istituto di Ricerche Farmacologiche Mario Negri, Milano; Agenzia Sanitaria e Sociale Regionale, Regione Emilia Romagna, Bologna
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Leoni M, Bassetti B, Kotar J, Cicuta P, Cosentino Lagomarsino M. Minimal two-sphere model of the generation of fluid flow at low Reynolds numbers. Phys Rev E Stat Nonlin Soft Matter Phys 2010; 81:036304. [PMID: 20365851 DOI: 10.1103/physreve.81.036304] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2009] [Indexed: 05/29/2023]
Abstract
Locomotion and generation of flow at low Reynolds number are subject to severe limitations due to the irrelevance of inertia: the "scallop theorem" requires that the system have at least two degrees of freedom, which move in non-reciprocal fashion, i.e. breaking time-reversal symmetry. We show here that a minimal model consisting of just two spheres driven by harmonic potentials is capable of generating flow. In this pump system the two degrees of freedom are the mean and relative positions of the two spheres. We have performed and compared analytical predictions, numerical simulation and experiments, showing that a time-reversible drive is sufficient to induce flow.
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Affiliation(s)
- M Leoni
- Dip Fisica, Università di Milano, Via Celoria, 16, 20133 Milano, Italy
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Beyerlein K, Cervellino A, Leoni M, Snyder RL, Scardi P. Debye equation versus Whole Powder Pattern Modelling: Real versus reciprocal space modelling of nanomaterials. ACTA ACUST UNITED AC 2009. [DOI: 10.1524/zksu.2009.0012] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Semplicini A, Benetton V, Macchini L, Realdi A, Manara R, Carollo C, Parotto E, Mascagna V, Leoni M, Calò LA, Pessina AC, Tosato F. Intravenous thrombolysis in the emergency department for the treatment of acute ischaemic stroke. Emerg Med J 2008; 25:403-6. [PMID: 18573948 PMCID: PMC2569154 DOI: 10.1136/emj.2007.053033] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BACKGROUND AND AIMS Thrombolytic therapy with intravenous recombinant tissue plasminogen activator (rt-PA) improves outcome in patients with ischaemic stroke treated within 3 h of symptom onset, but its extended implementation is limited. A pilot study was designed to verify whether evaluation of patients with acute ischaemic stroke and their treatment with intravenous rt-PA in the emergency department (ED), followed by transportation to a semi-intensive stroke care unit, offers a safe and effective organisational solution to provide intravenous thrombolysis to acute stroke patients when a stroke unit (SU) is not available. METHODS After checking for inclusion and exclusion criteria, ED doctors contacted the stroke team with a single page, located family members and urgently obtained computed tomography scan and laboratory tests. A stroke team investigator clinically assessed the patient, obtained written informed consent and supervised intravenous rt-PA in the ED. After treatment, the patient was transferred to the SU for rehabilitation and treatment of complications, under supervision of the same stroke team investigator. RESULTS 52 patients were treated with intravenous rt-PA within 3 h of symptom onset. 20 patients (38%) improved neurologically after 24 h, the number increased to 30 (58%) after one week. At 3 months 22 patients had a favourable outcome (43%). The 3-month mortality rate was 12%. Symptomatic cerebral haemorrhage was observed in two patients (4%). CONCLUSIONS Intravenous rt-PA administration in the ED is an effective organisational solution for acute ischaemic stroke when an SU is not established.
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Affiliation(s)
- A Semplicini
- Department of Clinical and Experimental Medicine, University of Padua Medical School and Azienda Ospedaliera, Padua, Italy.
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Kramer L, Grandi G, Leoni M, Passeri B, McCall J, Genchi C, Mortarino M, Bazzocchi C. Wolbachia and its influence on the pathology and immunology of Dirofilaria immitis infection. Vet Parasitol 2008; 158:191-5. [DOI: 10.1016/j.vetpar.2008.09.014] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Garnier E, Leoni M, Scardi P, Beyerlein K, Snyder R. Microstructure of surface-tailored platinum nanocrystals. Acta Crystallogr A 2008. [DOI: 10.1107/s010876730808080x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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