1
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Vasseur D, Arbab A, Giudici F, Marzac C, Michiels S, Tagliamento M, Bayle A, Smolenschi C, Sakkal M, Aldea M, Sassi H, Dall'Olio FG, Pata-Merci N, Cotteret S, Fiévet A, Auger N, Friboulet L, Facchinetti F, Géraud A, Ponce S, Hollebecque A, Besse B, Micol JB, Italiano A, Lacroix L, Rouleau E. Genomic landscape of liquid biopsy mutations in TP53 and DNA damage genes in cancer patients. NPJ Precis Oncol 2024; 8:51. [PMID: 38409229 PMCID: PMC10897416 DOI: 10.1038/s41698-024-00544-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2023] [Accepted: 02/15/2024] [Indexed: 02/28/2024] Open
Abstract
Next-generation sequencing (NGS) assays based on plasma cell-free DNA (cfDNA) are increasingly used for clinical trials inclusion. Their optimized limit of detection applied to a large number of genes leads to the identification of mutations not confirmed in tissue. It becomes essential to describe the characteristics and consequences of these liquid biopsy-only mutations. In the STING protocol (Gustave Roussy, NCT04932525), 542 patients with advanced solid cancer had cfDNA-based and tissue-based NGS analysis (performed by FoundationOne® Liquid CDx and FoundationOne CDx™, respectively). Mutations identified in the liquid biopsy but not in the paired tissue were considered as liquid biopsy-only mutations irrespective of their variant allelic frequency (VAF). Out of 542 patients, 281 (51.8%) harbored at least one liquid biopsy-only mutation. These patients were significantly older, and more heavily pretreated. Liquid biopsy-only mutations occurring in TP53, and in DDR genes (ATM, CHEK2, ATR, BRCA2, and BRCA1) accounted for 90.8% of all the mutations. The median VAF of these mutations was generally low (0.37% and 0.40% for TP53 and DDR genes respectively). The variant type repartition depended on the gene. Liquid biopsy-only mutations affected hotspot in TP53 codon 273, 125, 195, 176, 237 or 280 and ATM codon 2891 and 3008. In a subset of 37 patients, 75.0%, 53.5% and 83.3% of the liquid biopsy-only mutations occurring respectively in ATM, TP53, and CHEK2 were confirmed in the matching whole blood sample. Although liquid biopsy-only mutations makes the interpretation of liquid biopsy results more complex, they have distinct characteristics making them more easily identifiable.
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Affiliation(s)
- Damien Vasseur
- Medical Biology and Pathology Department, F-94805, Gustave Roussy, Villejuif, France.
- AMMICa UAR3655/US23, F-94805, Gustave Roussy, Villejuif, France.
| | - Ahmadreza Arbab
- Medical Biology and Pathology Department, F-94805, Gustave Roussy, Villejuif, France
| | - Fabiola Giudici
- Oncostat U1018, Inserm, Université Paris-Saclay, Équipe Labellisée Ligue Contre le Cancer, Villejuif, France
| | - Christophe Marzac
- Medical Biology and Pathology Department, F-94805, Gustave Roussy, Villejuif, France
| | - Stefan Michiels
- Oncostat U1018, Inserm, Université Paris-Saclay, Équipe Labellisée Ligue Contre le Cancer, Villejuif, France
- Bureau de Biostatistique et d'Épidémiologie, Gustave Roussy, Université Paris-Saclay, Villejuif, France
| | | | - Arnaud Bayle
- Oncostat U1018, Inserm, Université Paris-Saclay, Équipe Labellisée Ligue Contre le Cancer, Villejuif, France
- Drug Development Department (DITEP), Gustave Roussy, Villejuif, France
| | - Cristina Smolenschi
- Cancer Medicine, Gustave Roussy, Villejuif, France
- Drug Development Department (DITEP), Gustave Roussy, Villejuif, France
| | - Madona Sakkal
- Cancer Medicine, Gustave Roussy, Villejuif, France
- Drug Development Department (DITEP), Gustave Roussy, Villejuif, France
| | | | - Hela Sassi
- Medical Biology and Pathology Department, F-94805, Gustave Roussy, Villejuif, France
| | | | | | - Sophie Cotteret
- Medical Biology and Pathology Department, F-94805, Gustave Roussy, Villejuif, France
| | - Alice Fiévet
- Medical Biology and Pathology Department, F-94805, Gustave Roussy, Villejuif, France
| | - Nathalie Auger
- Medical Biology and Pathology Department, F-94805, Gustave Roussy, Villejuif, France
| | - Luc Friboulet
- Université Paris-Saclay, Institut Gustave Roussy, Inserm, Biomarqueurs prédictifs et nouvelles stratégies thérapeutiques en oncologie, Villejuif, France
| | - Francesco Facchinetti
- Université Paris-Saclay, Institut Gustave Roussy, Inserm, Biomarqueurs prédictifs et nouvelles stratégies thérapeutiques en oncologie, Villejuif, France
| | - Arthur Géraud
- Drug Development Department (DITEP), Gustave Roussy, Villejuif, France
| | - Santiago Ponce
- Drug Development Department (DITEP), Gustave Roussy, Villejuif, France
| | | | - Benjamin Besse
- Cancer Medicine, Gustave Roussy, Villejuif, France
- Université Paris-Saclay, Institut Gustave Roussy, Inserm, Biomarqueurs prédictifs et nouvelles stratégies thérapeutiques en oncologie, Villejuif, France
| | | | - Antoine Italiano
- Drug Development Department (DITEP), Gustave Roussy, Villejuif, France
| | - Ludovic Lacroix
- Medical Biology and Pathology Department, F-94805, Gustave Roussy, Villejuif, France
- AMMICa UAR3655/US23, F-94805, Gustave Roussy, Villejuif, France
| | - Etienne Rouleau
- Medical Biology and Pathology Department, F-94805, Gustave Roussy, Villejuif, France
- AMMICa UAR3655/US23, F-94805, Gustave Roussy, Villejuif, France
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Géraud A, Combarel D, Funck-Brentano C, Beaulieu Q, Zahr N, Broutin S, Spano JP, Massard C, Besse B, Gougis P. A Score to Predict the Clinical Usefulness of Therapeutic Drug Monitoring: Application to Oral Molecular Targeted Therapies in Cancer. Clin Pharmacol Ther 2024. [PMID: 38389482 DOI: 10.1002/cpt.3193] [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] [Received: 09/22/2023] [Accepted: 01/22/2024] [Indexed: 02/24/2024]
Abstract
Therapeutic drug monitoring (TDM) involves measuring and interpreting drug concentrations in biological fluids to adjust drug dosages. In onco-hematology, TDM guidelines for oral molecular targeted therapies (oMTTs) are varied. This study evaluates a quantitative approach with a score to predict the clinical usefulness of TDM for oMTTs. We identified key parameters for an oMTT's suitability for TDM from standard TDM recommendations. We gathered oMTT pharmacological data, which covered exposure variability (considering pharmacokinetic (PK) impact of food and proton pump inhibitors), technical intricacy (PK linearity and active metabolites), efficacy (exposure-response relationship), and safety (maximum tolerated dose, and exposure-safety relationship). To assess the validity and the relevance of the score and define relevant thresholds, we evaluated molecules with prospective validation or strong recommendations for TDM, both in oncology and in other fields. By September 1, 2021, the US Food and Drug Administration (FDA) approved 67 oMTTs for onco-hematological indications. Scores ranged from 15 (acalabrutinib) to 80 (sunitinib) with an average of 48.3 and a standard deviation of 15.6. Top scorers included sunitinib, sorafenib, cabozantinib, nilotinib, and abemaciclib. Based on scores, drugs were categorized into low (< 40), intermediate (≥ 40 and < 60), and high (≥ 60) relevance for TDM. Notably, negative controls generally scored around or under 40, whereas positive controls had a high score across different indications. In this work, we propose a quantitative and reproducible score to compare the potential usefulness of TDM for oMTTs. Future guidelines should prioritize the TDM for molecules with the highest score.
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Affiliation(s)
- Arthur Géraud
- Department of Cancer Medicine, Gustave Roussy, Villejuif, France
- Early Drug Development Department (DITEP), Gustave Roussy, Villejuif, France
- Paris-Saclay University, Orsay, France
| | - David Combarel
- Pharmacology Department, Gustave Roussy, Villejuif, France
- Faculty of Pharmacy, Paris-Saclay University, Chatenay-Malabry, France
| | - Christian Funck-Brentano
- Department of Pharmacology and Clinical Investigation Center (CIC-1901), AP-HP.Sorbonne Université, Pitié-Salpêtrière Hospital, INSERM, CIC-1901 and UMR-S 1166, Sorbonne Université Médecine, Paris, France
| | - Quentin Beaulieu
- Department of Pharmacology and Clinical Investigation Center (CIC-1901), AP-HP.Sorbonne Université, Pitié-Salpêtrière Hospital, INSERM, CIC-1901 and UMR-S 1166, Sorbonne Université Médecine, Paris, France
| | - Noël Zahr
- Department of Pharmacology and Clinical Investigation Center (CIC-1901), AP-HP.Sorbonne Université, Pitié-Salpêtrière Hospital, INSERM, CIC-1901 and UMR-S 1166, Sorbonne Université Médecine, Paris, France
| | - Sophie Broutin
- Pharmacology Department, Gustave Roussy, Villejuif, France
| | - Jean-Philippe Spano
- Oncology Department, APHP-Sorbonne Université, Cancer Institute (IUC), Paris, France
- INSERM, UMRS 1136, Paris, France
| | - Christophe Massard
- Early Drug Development Department (DITEP), Gustave Roussy, Villejuif, France
- Centre Eugène Marquis, Rennes, France
| | - Benjamin Besse
- Department of Cancer Medicine, Gustave Roussy, Villejuif, France
- Paris-Saclay University, Orsay, France
| | - Paul Gougis
- Department of Pharmacology and Clinical Investigation Center (CIC-1901), AP-HP.Sorbonne Université, Pitié-Salpêtrière Hospital, INSERM, CIC-1901 and UMR-S 1166, Sorbonne Université Médecine, Paris, France
- Oncology Department, APHP-Sorbonne Université, Cancer Institute (IUC), Paris, France
- Residual Tumor & Response to Treatment Laboratory, RT2Lab, INSERM, U932 Immunity and Cancer, Curie Institute, Université Paris, Paris, France
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Herbel N, Goldschmidt V, Michot JM, Laparra A, Géraud A, Ouali K, Danlos FX, Martin Romano P, Vuagnat P, Bernard-Tessier A, Gazzah A, Bahleda R, Hollebecque A, Marabelle A, Postel-Vinay S, Massard C, Ribrag V, Ponce Aix S, Champiat S, Baldini C. 86P Validation of the Gustave Roussy Immune (GRIm) score in patients treated with bispecific CD3 T cell engagers in phase I clinical trials. ESMO Open 2023. [DOI: 10.1016/j.esmoop.2023.100944] [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: 04/05/2023] Open
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Hilmi M, Naoun N, Boilève A, Géraud A, Bayle A, Pagès A, Aupomerol M, Rouanne M, Madec FX, Pommeret F, Massard C, Baldini C, Scotté F, Champiat S. Evaluation of supportive care needs, sexuality and quality of life in phase 1 trials: a prospective monocentric study. Support Care Cancer 2022; 30:9841-9849. [PMID: 36271944 DOI: 10.1007/s00520-022-07407-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 10/11/2022] [Indexed: 11/30/2022]
Abstract
PURPOSE Patients enrolled in oncology phase 1 trials (ph1) usually have advanced heavily pre-treated cancers with few therapeutic options. Quality of life (QoL) is one of the key cancer-treatment outcome measures, especially in ph1, and sexuality is an important part of Qol but rarely explored. This prospective study aims to assess supportive care needs, QoL and sexuality in ph1. METHODS Between September 2020 and June 2021, we prospectively recruited patients enrolled in ph1 at Gustave Roussy in France. Supportive care needs, QoL (EORTC QLQ-C30) and sexuality (female sexual function index for women, male sexual health questionnaire [MSHQ] for men) were assessed at baseline, one, three and 5 months. We performed multivariate analyses to identify associations between clinical characteristics, QoL and quality of sexual life over time. RESULTS At baseline, we analyzed 187 patients (45% women (n = 84) and 55% men (n = 103)). Patients expressed the need for consultations in pain management, nutrition, psychology and sexology in 28%, 26%, 19% and 9%, respectively. Lower global QoL was independently associated with Royal Marsden Hospital score (p = 0.012), urogenital location tumor (p = 0.021), elevated CRP levels (p = 0.014) and pain intensity (p = 0.005). Ninety-two percent of women had sexual dysfunction. In men, a lower MSHQ score was independently associated with urogenital location tumor (p = 0.021), ECOG Performance Status (p = 0.006), comorbidity at risk (p = 0.024) and pain intensity (p = 0.004). CONCLUSIONS There are significant needs for supportive care in ph1, especially in some subgroups of patients. New models of care should be developed to improve early phase pathways.
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Affiliation(s)
- Marc Hilmi
- Département d'Innovation Thérapeutique et d'Essais Précoces (DITEP), Gustave Roussy, Université Paris-Saclay, 94140, Villejuif, France. .,Biostatistics and Epidemiology Department, Gustave Roussy, Université Paris-Saclay, Villejuif, France.
| | - Natacha Naoun
- Département d'Innovation Thérapeutique et d'Essais Précoces (DITEP), Gustave Roussy, Université Paris-Saclay, 94140, Villejuif, France
| | - Alice Boilève
- Medical Oncology Department, Gustave Roussy, Université Paris-Saclay, Villejuif, France
| | - Arthur Géraud
- Département d'Innovation Thérapeutique et d'Essais Précoces (DITEP), Gustave Roussy, Université Paris-Saclay, 94140, Villejuif, France.,Biostatistics and Epidemiology Department, Gustave Roussy, Université Paris-Saclay, Villejuif, France
| | - Arnaud Bayle
- Département d'Innovation Thérapeutique et d'Essais Précoces (DITEP), Gustave Roussy, Université Paris-Saclay, 94140, Villejuif, France.,Biostatistics and Epidemiology Department, Gustave Roussy, Université Paris-Saclay, Villejuif, France
| | - Arnaud Pagès
- Biostatistics and Epidemiology Department, Gustave Roussy, Université Paris-Saclay, Villejuif, France
| | - Marion Aupomerol
- Medical Oncology Department, Gustave Roussy, Université Paris-Saclay, Villejuif, France
| | - Matthieu Rouanne
- Urology Department, Hopital Foch, Université Paris-Saclay, Suresnes, France.,Department of Microbiology and Immunology, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, USA
| | | | - Fanny Pommeret
- Medical Oncology Department, Gustave Roussy, Université Paris-Saclay, Villejuif, France
| | - Christophe Massard
- Département d'Innovation Thérapeutique et d'Essais Précoces (DITEP), Gustave Roussy, Université Paris-Saclay, 94140, Villejuif, France
| | - Capucine Baldini
- Département d'Innovation Thérapeutique et d'Essais Précoces (DITEP), Gustave Roussy, Université Paris-Saclay, 94140, Villejuif, France.,Laboratory for Immunomonitoring in Oncology (LIO), University Paris-Saclay, Gustave Roussy Cancer Campus, Villejuif, France
| | - Florian Scotté
- Interdisciplinary Patient Pathway Department, Gustave Roussy, Université Paris-Saclay, Villejuif, France
| | - Stéphane Champiat
- Département d'Innovation Thérapeutique et d'Essais Précoces (DITEP), Gustave Roussy, Université Paris-Saclay, 94140, Villejuif, France
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5
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Vasseur D, Sassi H, Bayle A, Tagliamento M, Besse B, Marzac C, Arbab A, Auger N, Cotteret S, Aldea M, Blanc-Durand F, Géraud A, Gazzah A, Loriot Y, Hollebecque A, Martín-Romano P, Ngo-Camus M, Nicotra C, Ponce S, Sakkal M, Caron O, Smolenschi C, Micol JB, Italiano A, Rouleau E, Lacroix L. Next-Generation Sequencing on Circulating Tumor DNA in Advanced Solid Cancer: Swiss Army Knife for the Molecular Tumor Board? A Review of the Literature Focused on FDA Approved Test. Cells 2022; 11:cells11121901. [PMID: 35741030 PMCID: PMC9221453 DOI: 10.3390/cells11121901] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 06/01/2022] [Accepted: 06/10/2022] [Indexed: 11/16/2022] Open
Abstract
FDA-approved next-generation sequencing assays based on cell-free DNA offers new opportunities in a molecular-tumor-board context thanks to the noninvasiveness of liquid biopsy, the diversity of analyzed parameters and the short turnaround time. It gives the opportunity to study the heterogeneity of the tumor, to elucidate complex resistance mechanisms and to adapt treatment strategies. However, lowering the limit of detection and increasing the panels' size raise new questions in terms of detection of incidental germline alterations, occult malignancies and clonal hematopoiesis of indeterminate potential mutations. In this review, after a technological discussion and description of the common problematics encountered, we establish recommendations in properly using these FDA-approved tests in a molecular-tumor-board context.
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Affiliation(s)
- Damien Vasseur
- Medical Biology and Pathology Department, Gustave Roussy, F-94805 Villejuif, France; (H.S.); (C.M.); (A.A.); (N.A.); (S.C.); (E.R.); (L.L.)
- AMMICa UAR3655/US23, Gustave Roussy, F-94805 Villejuif, France
- Correspondence:
| | - Hela Sassi
- Medical Biology and Pathology Department, Gustave Roussy, F-94805 Villejuif, France; (H.S.); (C.M.); (A.A.); (N.A.); (S.C.); (E.R.); (L.L.)
| | - Arnaud Bayle
- Drug Development Department (DITEP), Gustave Roussy, F-94805 Villejuif, France; (A.B.); (A.G.); (P.M.-R.); (M.N.-C.); (C.N.); (S.P.); (A.I.)
- Oncostat U1018, Inserm, Université Paris-Saclay, Équipe Labellisée Ligue Contre le Cancer, F-94805 Villejuif, France
| | - Marco Tagliamento
- Medical Oncology Department, Gustave Roussy, F-94805 Villejuif, France; (M.T.); (B.B.); (M.A.); (A.G.); (Y.L.); (A.H.); (O.C.)
| | - Benjamin Besse
- Medical Oncology Department, Gustave Roussy, F-94805 Villejuif, France; (M.T.); (B.B.); (M.A.); (A.G.); (Y.L.); (A.H.); (O.C.)
| | - Christophe Marzac
- Medical Biology and Pathology Department, Gustave Roussy, F-94805 Villejuif, France; (H.S.); (C.M.); (A.A.); (N.A.); (S.C.); (E.R.); (L.L.)
| | - Ahmadreza Arbab
- Medical Biology and Pathology Department, Gustave Roussy, F-94805 Villejuif, France; (H.S.); (C.M.); (A.A.); (N.A.); (S.C.); (E.R.); (L.L.)
| | - Nathalie Auger
- Medical Biology and Pathology Department, Gustave Roussy, F-94805 Villejuif, France; (H.S.); (C.M.); (A.A.); (N.A.); (S.C.); (E.R.); (L.L.)
| | - Sophie Cotteret
- Medical Biology and Pathology Department, Gustave Roussy, F-94805 Villejuif, France; (H.S.); (C.M.); (A.A.); (N.A.); (S.C.); (E.R.); (L.L.)
| | - Mihaela Aldea
- Medical Oncology Department, Gustave Roussy, F-94805 Villejuif, France; (M.T.); (B.B.); (M.A.); (A.G.); (Y.L.); (A.H.); (O.C.)
| | - Félix Blanc-Durand
- Gynecological Cancer Unit, Department of Medicine, Gustave Roussy, F-94805 Villejuif, France;
| | - Arthur Géraud
- Drug Development Department (DITEP), Gustave Roussy, F-94805 Villejuif, France; (A.B.); (A.G.); (P.M.-R.); (M.N.-C.); (C.N.); (S.P.); (A.I.)
| | - Anas Gazzah
- Medical Oncology Department, Gustave Roussy, F-94805 Villejuif, France; (M.T.); (B.B.); (M.A.); (A.G.); (Y.L.); (A.H.); (O.C.)
| | - Yohann Loriot
- Medical Oncology Department, Gustave Roussy, F-94805 Villejuif, France; (M.T.); (B.B.); (M.A.); (A.G.); (Y.L.); (A.H.); (O.C.)
| | - Antoine Hollebecque
- Medical Oncology Department, Gustave Roussy, F-94805 Villejuif, France; (M.T.); (B.B.); (M.A.); (A.G.); (Y.L.); (A.H.); (O.C.)
| | - Patricia Martín-Romano
- Drug Development Department (DITEP), Gustave Roussy, F-94805 Villejuif, France; (A.B.); (A.G.); (P.M.-R.); (M.N.-C.); (C.N.); (S.P.); (A.I.)
| | - Maud Ngo-Camus
- Drug Development Department (DITEP), Gustave Roussy, F-94805 Villejuif, France; (A.B.); (A.G.); (P.M.-R.); (M.N.-C.); (C.N.); (S.P.); (A.I.)
| | - Claudio Nicotra
- Drug Development Department (DITEP), Gustave Roussy, F-94805 Villejuif, France; (A.B.); (A.G.); (P.M.-R.); (M.N.-C.); (C.N.); (S.P.); (A.I.)
| | - Santiago Ponce
- Drug Development Department (DITEP), Gustave Roussy, F-94805 Villejuif, France; (A.B.); (A.G.); (P.M.-R.); (M.N.-C.); (C.N.); (S.P.); (A.I.)
| | - Madona Sakkal
- Dermatology Unit, Oncology Department, Gustave Roussy, F-94805 Villejuif, France; (M.S.); (C.S.)
| | - Olivier Caron
- Medical Oncology Department, Gustave Roussy, F-94805 Villejuif, France; (M.T.); (B.B.); (M.A.); (A.G.); (Y.L.); (A.H.); (O.C.)
| | - Cristina Smolenschi
- Dermatology Unit, Oncology Department, Gustave Roussy, F-94805 Villejuif, France; (M.S.); (C.S.)
| | | | - Antoine Italiano
- Drug Development Department (DITEP), Gustave Roussy, F-94805 Villejuif, France; (A.B.); (A.G.); (P.M.-R.); (M.N.-C.); (C.N.); (S.P.); (A.I.)
| | - Etienne Rouleau
- Medical Biology and Pathology Department, Gustave Roussy, F-94805 Villejuif, France; (H.S.); (C.M.); (A.A.); (N.A.); (S.C.); (E.R.); (L.L.)
- AMMICa UAR3655/US23, Gustave Roussy, F-94805 Villejuif, France
| | - Ludovic Lacroix
- Medical Biology and Pathology Department, Gustave Roussy, F-94805 Villejuif, France; (H.S.); (C.M.); (A.A.); (N.A.); (S.C.); (E.R.); (L.L.)
- AMMICa UAR3655/US23, Gustave Roussy, F-94805 Villejuif, France
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Assoun S, Benderra MA, Géraud A, Bayle A, Boilève A, Grazziotin-Soares D, Lotz JP. Congrès de l’association américaine de recherche contre le cancer — AACR 2018. ONCOLOGIE 2018. [DOI: 10.3166/onco-2018-0011] [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: 11/20/2022]
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7
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Affiliation(s)
- B. Pégourié
- CEA, IRFM, F-13108 Saint-Paul-lez-Durance, France
| | - A. Géraud
- CEA, IRFM, F-13108 Saint-Paul-lez-Durance, France
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Géraud A, Xu HP, Beuzeboc P, Kirova YM. Preliminary results of the concurrent use of radiotherapy for bone metastases and trastuzumab emtansine in patients with HER2-positive metastatic breast cancer. Cancer Radiother 2016; 20:312-3. [PMID: 27342941 DOI: 10.1016/j.canrad.2016.03.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2016] [Revised: 03/17/2016] [Accepted: 03/22/2016] [Indexed: 11/17/2022]
Affiliation(s)
- A Géraud
- Department of radiation oncology, institut Curie, 26, rue d'Ulm, 75005 Paris, France
| | - H P Xu
- Department of radiation oncology, institut Curie, 26, rue d'Ulm, 75005 Paris, France
| | - P Beuzeboc
- Department of medical oncology, 26, rue d'Ulm, 75005 Paris, France
| | - Y M Kirova
- Department of radiation oncology, institut Curie, 26, rue d'Ulm, 75005 Paris, France.
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Géraud A, Lennholm M, Alarcon T, Bennett P, Frigione D, Garnier D, Lang P, Lukin A, Mooney R, Vinyar I. Status of the JET high frequency pellet injector. Fusion Engineering and Design 2013. [DOI: 10.1016/j.fusengdes.2012.12.019] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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10
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Géraud A, Salasca S, Verger JM, Alarcon T, Agarici G, Bremond S, Chenevois JP, Geynet M, Migozzi JB, Reux C. Fast imaging system on Tore Supra. Rev Sci Instrum 2009; 80:033504. [PMID: 19334919 DOI: 10.1063/1.3098944] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
A new endoscope aiming at transferring the image of a poloidal section of the Tore Supra plasma to a fast camera able to record frames at a speed up to 4800 frames per second at full resolution, or much faster for a limited number of pixel, has been installed on Tore Supra. First movies showing the light emission associated to fast phenomena such as plasma start up, disruptions or gas and pellet injections have been produced.
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Affiliation(s)
- A Géraud
- CEA, IRFM, F-13108 Saint-Paul-lez-Durance, France
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Vinyar I, Géraud A, Yamada H, Lukin A, Sakamoto R, Skoblikov S, Umov A, Oda Y, Gros G, Krasilnikov I, Reznichenko P, Panchenko V. Pellet injectors for steady state plasma fuelling. Fusion Engineering and Design 2005. [DOI: 10.1016/j.fusengdes.2005.06.206] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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12
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Waller V, Pégourié B, Giruzzi G, Huysmans GTA, Garzotti L, Géraud A. Investigation of current-density modification during magnetic reconnection by analysis of hydrogen-pellet deflection. Phys Rev Lett 2003; 91:205002. [PMID: 14683368 DOI: 10.1103/physrevlett.91.205002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2002] [Indexed: 05/24/2023]
Abstract
A pellet penetrating the inner region of a tokamak discharge, where the safety factor drops below unity, triggers an instability analogous to a sawtooth crash. Because of the simultaneity of the crash and pellet crossing, the latter is an appropriate probe for investigating the current distribution during reconnection. In this Letter, pellet deflection is used to characterize the associated electron distribution function. The perturbation compatible with the observed trajectory requires a negative current layer on the q=1 magnetic surface between 3 and 12 times the equilibrium current density and an expulsion of high energy electrons from the plasma core.
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Affiliation(s)
- V Waller
- Association Euratom-CEA sur la Fusion Controlée, C. E. Cadarache, 13108 Saint-Paul-Lèz-Durance, France
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13
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Géraud A, Artaud J, Gros G, Pocheau C, Combs S, Foust C. Test of an extruder feed system on the Tore Supra centrifugal pellet injector. Fusion Engineering and Design 2001. [DOI: 10.1016/s0920-3796(01)00311-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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14
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Beaumont B, Becoulet A, Bibet P, Darbos C, Garin P, Géraud A, Giruzzi G, Grosman A, Martin G, Ottaviani M, Peysson Y, Saoutic B, Stott P, Zabiego M. Tore Supra steady-state power and particle injection: the ‘CIMES’ project. Fusion Engineering and Design 2001. [DOI: 10.1016/s0920-3796(01)00385-4] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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