1
|
Bautista F, Verdú-Amorós J, Geoerger B, Rubio-San-Simón A, Paoletti X, Zwaan CM, Casanova M, Marshall LV, Carceller F, Doz F, Lecinse C, Vassal G, Pearson ADJ, Kearns P, Moreno L. Evolution of the Innovative Therapies for Children With Cancer Consortium Trial Portfolio for Drug Development for Children With Cancer. J Clin Oncol 2024:JCO2301237. [PMID: 38743911 DOI: 10.1200/jco.23.01237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 02/09/2024] [Accepted: 02/29/2024] [Indexed: 05/16/2024] Open
Abstract
PURPOSE The aim of the Innovative Therapies for Children with Cancer (ITCC) consortium is to improve access to novel therapies for children and adolescents with cancer. The evolution of the ITCC clinical trial portfolio since 2003 was reviewed. METHODS All ITCC-labeled phase I/II trials opened between January 1, 2003 and February 3, 2018 were analyzed in two periods (2003-2010 and 2011-2018), and data were extracted from the ITCC database, regulatory agencies' registries, and publications. RESULTS Sixty-one trials (62% industry-sponsored) enrolled 3,198 patients. The number of trials in the second period increased by almost 300% (16 v 45). All biomarker-driven trials (n = 14) were conducted in the second period. The use of rolling six and model-based designs increased (1 of 9, 11% v 21 of 31, 68%), and that of 3 + 3 designs decreased (5 of 9, 55% v 5 of 31, 16%; P = .014). The proportion of studies evaluating chemotherapeutics only decreased (5 of 16, 31% v 4 of 45, 9%), the proportion of single-agent targeted therapies did not change (9 of 16, 56.2% v 24 of 45, 53.3%), the proportion of combination targeted therapies trials increased (2 of 16, 12%, v 17 of 45, 38%), the proportion of randomized phase II trials increased (1 of 7, 14% v 8 of 14, 57%). More trials were part of a pediatric investigation plan in the second period (4 of 16, 25% v 21 of 45, 46%). The median time for Ethics Committees' approvals was 1.7 times longer for academic compared with industry-sponsored trials. CONCLUSION This study reports a shift in the paradigm of early drug development for childhood cancers, with more biologically relevant targets evaluated in biomarker-driven trials or in combination with other therapies and with more model-based or randomized designs and a greater focus on fulfilling regulatory requirements. Improvement of trial setup and recruitment could increase the number of patients benefiting from novel agents.
Collapse
Affiliation(s)
- Francisco Bautista
- Division of Pediatric Hematology and Oncology, Hospital Universitario Niño Jesús, Madrid, Spain
- Princess Máxima Center, Utrecht, the Netherlands
| | - Jaime Verdú-Amorós
- Division of Pediatric Hematology and Oncology, Hospital Universitario Niño Jesús, Madrid, Spain
- Division of Pediatric Hematology and Oncology, Hospital Clínico Universitario de Valencia, Biomedical Research Institute, INCLIVA, Valencia, Spain
| | - Birgit Geoerger
- Pediatric and Adolescent Oncology Department, Gustave Roussy Cancer Campus, INSERM U1015, Université Paris-Saclay, Villejuif, France
| | - Alba Rubio-San-Simón
- Division of Pediatric Hematology and Oncology, Hospital Universitario Niño Jesús, Madrid, Spain
| | - Xavier Paoletti
- Institut Curie & Université Versailles St Quentin & INSERM U900 STAMPM, Paris, France
| | - C Michel Zwaan
- Princess Máxima Center, Utrecht, the Netherlands
- Department of Pediatric Oncology, Erasmus MC-Sophia Children's Hospital, Rotterdam, the Netherlands
| | - Michela Casanova
- Pediatric Oncology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Lynley V Marshall
- Pediatric and Adolescent Oncology Drug Development, Children & Young People's Unit, The Royal Marsden NHS Foundation Trust, London, United Kingdom
- Division of Clinical Studies and Cancer Therapeutics, The Institute of Cancer Research, London, United Kingdom
| | - Fernando Carceller
- Pediatric and Adolescent Oncology Drug Development, Children & Young People's Unit, The Royal Marsden NHS Foundation Trust, London, United Kingdom
- Division of Clinical Studies and Cancer Therapeutics, The Institute of Cancer Research, London, United Kingdom
| | - Francois Doz
- SIREDO Cancer Center (Care, Innovation and Research in Pediatric, Adolescents, and Young Adults Oncology), Curie Institute Paris, and University Paris Cité, Paris, France
| | - Carole Lecinse
- Innovative Therapies for Children with Cancer, Gustave Roussy Cancer Campus, Villejuif, France
| | - Gilles Vassal
- Innovative Therapies for Children with Cancer, Gustave Roussy Cancer Campus, Villejuif, France
| | - Andrew D J Pearson
- Pediatric and Adolescent Oncology Drug Development, Children & Young People's Unit, The Royal Marsden NHS Foundation Trust, London, United Kingdom
| | - Pamela Kearns
- Institute of Cancer and Genomic Sciences, NIHR Birmingham Biomedical Research Centre, University of Birmingham, Birmingham, United Kingdom
| | - Lucas Moreno
- Division of Pediatric Hematology and Oncology, Hospital Universitari Vall d'Hebron, Barcelona, Spain
| |
Collapse
|
2
|
Gatz SA, Harttrampf AC, Brard C, Bautista F, André N, Abbou S, Rubino J, Rondof W, Deloger M, Rübsam M, Marshall LV, Hübschmann D, Nebchi S, Aerts I, Thebaud E, De Carli E, Defachelles AS, Paoletti X, Godin R, Miah K, Mortimer PGS, Vassal G, Geoerger B. Phase I/II Study of the WEE1 Inhibitor Adavosertib (AZD1775) in Combination with Carboplatin in Children with Advanced Malignancies: Arm C of the AcSé-ESMART Trial. Clin Cancer Res 2024; 30:741-753. [PMID: 38051741 DOI: 10.1158/1078-0432.ccr-23-2959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 11/06/2023] [Accepted: 11/30/2023] [Indexed: 12/07/2023]
Abstract
PURPOSE AcSé-ESMART Arm C aimed to define the recommended dose and activity of the WEE1 inhibitor adavosertib in combination with carboplatin in children and young adults with molecularly enriched recurrent/refractory malignancies. PATIENTS AND METHODS Adavosertib was administered orally, twice every day on Days 1 to 3 and carboplatin intravenously on Day 1 of a 21-day cycle, starting at 100 mg/m2/dose and AUC 5, respectively. Patients were enriched for molecular alterations in cell cycle and/or homologous recombination (HR). RESULTS Twenty patients (median age: 14.0 years; range: 3.4-23.5) were included; 18 received 69 treatment cycles. Dose-limiting toxicities were prolonged grade 4 neutropenia and grade 3/4 thrombocytopenia requiring transfusions, leading to two de-escalations to adavosertib 75 mg/m2/dose and carboplatin AUC 4; no recommended phase II dose was defined. Main treatment-related toxicities were hematologic and gastrointestinal. Adavosertib exposure in children was equivalent to that in adults; both doses achieved the cell kill target. Overall response rate was 11% (95% confidence interval, 0.0-25.6) with partial responses in 2 patients with neuroblastoma. One patient with medulloblastoma experienced unconfirmed partial response and 5 patients had stable disease beyond four cycles. Seven of these eight patients with clinical benefit had alterations in HR, replication stress, and/or RAS pathway genes with or without TP53 alterations, whereas TP53 pathway alterations alone (8/10) or no relevant alterations (2/10) were present in the 10 patients without benefit. CONCLUSIONS Adavosertib-carboplatin combination exhibited significant hematologic toxicity. Activity signals and identified potential biomarkers suggest further studies with less hematotoxic DNA-damaging therapy in molecularly enriched pediatric cancers.
Collapse
Affiliation(s)
- Susanne A Gatz
- Institute of Cancer and Genomic Sciences, University of Birmingham; Women's and Children's NHS Foundation Trust, Birmingham, United Kingdom
| | - Anne C Harttrampf
- Gustave Roussy Cancer Campus, Department of Pediatric and Adolescent Oncology, Villejuif, France
- Gustave Roussy Cancer Campus, INSERM U1015, Université Paris-Saclay, Villejuif, France
| | - Caroline Brard
- Gustave Roussy Cancer Campus, Biostatistics and Epidemiology Unit, INSERM U1018, CESP, Université Paris-Saclay, Université Paris-Sud, UVSQ, Villejuif, France
| | - Francisco Bautista
- Hospital Niño Jesús, Department of Pediatric Oncology, Hematology and Stem Cell Transplantation, Madrid, Spain
| | - Nicolas André
- Hôpital de la Timone, AP-HM, Department of Pediatric Oncology, Marseille, France
- UMR INSERM 1068, CNRS UMR 7258, Aix Marseille Université U105, Marseille, Cancer Research Center (CRCM), Marseille, France
| | - Samuel Abbou
- Gustave Roussy Cancer Campus, Department of Pediatric and Adolescent Oncology, Villejuif, France
| | - Jonathan Rubino
- Gustave Roussy Cancer Campus, Clinical Research Direction, Villejuif, France
| | - Windy Rondof
- Gustave Roussy Cancer Campus, INSERM U1015, Université Paris-Saclay, Villejuif, France
- Gustave Roussy Cancer Campus, Bioinformatics platform, Université Paris-Saclay, Villejuif, France
| | - Marc Deloger
- Gustave Roussy Cancer Campus, Bioinformatics platform, Université Paris-Saclay, Villejuif, France
| | - Marc Rübsam
- Computational Oncology Group, Molecular Precision Oncology Program, National Center for Tumor Diseases (NCT) Heidelberg and German Cancer Research Center
| | - Lynley V Marshall
- Royal Marsden Hospital & The Institute of Cancer Research, Paediatric and Adolescent Oncology Drug Development Unit, London, United Kingdom
| | - Daniel Hübschmann
- Computational Oncology Group, Molecular Precision Oncology Program, National Center for Tumor Diseases (NCT) Heidelberg and German Cancer Research Center
- Pattern Recognition and Digital Medicine Group, Heidelberg Institute for Stem cell Technology and Experimental Medicine (HI-STEM); German Cancer Consortium (DKTK), Heidelberg, Germany
| | - Souad Nebchi
- Gustave Roussy Cancer Campus, INSERM U1015, Université Paris-Saclay, Villejuif, France
| | - Isabelle Aerts
- Institut Curie, SIREDO Oncology Center (Care, Innovation and research for children and AYA with cancer), PSL Research University, Paris, France
| | - Estelle Thebaud
- Centre Hospitalier Universitaire, Department of Pediatric Oncology, Nantes, France
| | - Emilie De Carli
- Centre Hospitalier Universitaire, Department of Pediatric Oncology, Angers, France
| | | | - Xavier Paoletti
- Gustave Roussy Cancer Campus, Biostatistics and Epidemiology Unit, INSERM U1018, CESP, Université Paris-Saclay, Université Paris-Sud, UVSQ, Villejuif, France
| | - Robert Godin
- AstraZeneca Oncology External R&D, Waltham, Massachusetts
| | - Kowser Miah
- Clinical Pharmacology and Quantitative Pharmacology, AstraZeneca, Waltham, Massachusetts
| | | | - Gilles Vassal
- Gustave Roussy Cancer Campus, Clinical Research Direction, Villejuif, France
| | - Birgit Geoerger
- Gustave Roussy Cancer Campus, Department of Pediatric and Adolescent Oncology, Villejuif, France
- Gustave Roussy Cancer Campus, INSERM U1015, Université Paris-Saclay, Villejuif, France
| |
Collapse
|
3
|
Moreno L, DuBois SG, Glade Bender J, Mauguen A, Bird N, Buenger V, Casanova M, Doz F, Fox E, Gore L, Hawkins DS, Izraeli S, Jones DT, Kearns PR, Molenaar JJ, Nysom K, Pfister S, Reaman G, Smith M, Weigel B, Vassal G, Zwaan CM, Paoletti X, Iasonos A, Pearson AD. Combination Early-Phase Trials of Anticancer Agents in Children and Adolescents. J Clin Oncol 2023; 41:3408-3422. [PMID: 37015036 PMCID: PMC10414747 DOI: 10.1200/jco.22.02430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Accepted: 02/07/2023] [Indexed: 04/06/2023] Open
Abstract
PURPOSE There is an increasing need to evaluate innovative drugs for childhood cancer using combination strategies. Strong biological rationale and clinical experience suggest that multiple agents will be more efficacious than monotherapy for most diseases and may overcome resistance mechanisms and increase synergy. The process to evaluate these combination trials needs to maximize efficiency and should be agreed by all stakeholders. METHODS After a review of existing combination trial methodologies, regulatory requirements, and current results, a consensus among stakeholders was achieved. RESULTS Combinations of anticancer therapies should be developed on the basis of mechanism of action and robust preclinical evaluation, and may include data from adult clinical trials. The general principle for combination early-phase studies is that, when possible, clinical trials should be dose- and schedule-confirmatory rather than dose-exploratory, and every effort should be made to optimize doses early. Efficient early-phase combination trials should be seamless, including dose confirmation and randomized expansion. Dose evaluation designs for combinations depend on the extent of previous knowledge. If not previously evaluated, limited evaluation of monotherapy should be included in the same clinical trial as the combination. Randomized evaluation of a new agent plus standard therapy versus standard therapy is the most effective approach to isolate the effect and toxicity of the novel agent. Platform trials may be valuable in the evaluation of combination studies. Patient advocates and regulators should be engaged with investigators early in a proposed clinical development pathway and trial design must consider regulatory requirements. CONCLUSION An optimized, agreed approach to the design and evaluation of early-phase pediatric combination trials will accelerate drug development and benefit all stakeholders, most importantly children and adolescents with cancer.
Collapse
Affiliation(s)
- Lucas Moreno
- Hospital Universitari Vall d’Hebron, Barcelona, Spain
| | - Steven G. DuBois
- Dana-Farber/Boston Children's Cancer and Blood Disorders Center, Boston, MA
| | | | | | - Nick Bird
- Solving Kids' Cancer UK, London, United Kingdom
| | - Vickie Buenger
- Coalition Against Childhood Cancer (CAC2), Philadelphia, PA
| | | | - François Doz
- Université Paris Cité, Paris, France
- SIREDO Centre (Care, Innovation Research in Pediatric, Adolescent and Young Adults Oncology), Institut Curie, Paris, France
| | | | - Lia Gore
- Children's Hospital Colorado, Aurora, CO
- University of Colorado, Aurora, CO
| | | | - Shai Izraeli
- Rina Zaizov Pediatric Hematology Oncology Division, Schneider Children's Medical Center of Israel, Petah Tikva, Israel
- Hematological Malignancies Centre of Human Molecular Genetics and Biochemistry, Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - David T.W. Jones
- Hopp Children’s Cancer Center Heidelberg (KiTZ), Heidelberg, Germany
- NIHR Birmingham Biomedical Research Centre, University of Birmingham, Birmingham, United Kingdom
| | - Pamela R. Kearns
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
- Department of Pharmaceutical Sciences Utrecht University, Utrecht, the Netherlands
| | - Jan J. Molenaar
- Division of Pediatric Neurooncology, DKFZ, KiTZ
- Righospitalet, Copenhagen, Denmark
| | - Karsten Nysom
- Clinical Trial Unit and Childhood Brain Tumors, Heidelberg University Hospital, Heidelberg, Germany
| | - Stefan Pfister
- Hopp Children’s Cancer Center Heidelberg (KiTZ), Heidelberg, Germany
- Division of Pediatric Glioma Research, German Cancer Research Center (DKFZ), Heidelberg, Germany
- Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, United Kingdom
| | | | | | | | - Gilles Vassal
- Innovative Therapies for Children with Cancer, Paris, France
- ACCELERATE, Brussels, Belgium
- Gustave Roussy Cancer Centre, Paris, France
| | - Christian Michel Zwaan
- Righospitalet, Copenhagen, Denmark
- Department of Pediatric Oncology, Hematology, Erasmus MC, Sophia Children’s Hospital, the Netherlands
| | | | | | - Andrew D.J. Pearson
- Innovative Therapies for Children with Cancer, Paris, France
- ACCELERATE, Brussels, Belgium
| |
Collapse
|
4
|
Bautista F, Paoletti X, Rubino J, Brard C, Rezai K, Nebchi S, Andre N, Aerts I, De Carli E, van Eijkelenburg N, Thebaud E, Corradini N, Defachelles AS, Ducassou S, Morscher RJ, Vassal G, Geoerger B. Phase I or II Study of Ribociclib in Combination With Topotecan-Temozolomide or Everolimus in Children With Advanced Malignancies: Arms A and B of the AcSé-ESMART Trial. J Clin Oncol 2021; 39:3546-3560. [PMID: 34347542 DOI: 10.1200/jco.21.01152] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 06/14/2021] [Accepted: 07/08/2021] [Indexed: 01/23/2023] Open
Abstract
PURPOSE AcSé-ESMART is a proof-of-concept, phase I or II, platform trial, designed to explore targeted agents in a molecularly enriched cancer population. Arms A and B aimed to define the recommended phase II dose and activity of the CDK4/6 inhibitor ribociclib with topotecan and temozolomide (TOTEM) or everolimus, respectively, in children with recurrent or refractory malignancies. PATIENTS AND METHODS Ribociclib was administered orally once daily for 16 days after TOTEM for 5 days (arm A) or for 21 days with everolimus orally once daily continuously in a 28-day cycle (arm B). Dose escalation followed the continuous reassessment method, and activity assessment the Ensign design. Arms were enriched on the basis of molecular alterations in the cell cycle or PI3K/AKT/mTOR pathways. RESULTS Thirty-two patients were included, 14 in arm A and 18 in arm B, and 31 were treated. Fourteen patients had sarcomas (43.8%), and 13 brain tumors (40.6%). Main toxicities were leukopenia, neutropenia, and lymphopenia. The recommended phase II dose was ribociclib 260 mg/m2 once a day, temozolomide 100 mg/m2 once a day, and topotecan 0.5 mg/m2 once a day (arm A) and ribociclib 175 mg/m2 once a day and everolimus 2.5 mg/m2 once a day (arm B). Pharmacokinetic analyses confirmed the drug-drug interaction of ribociclib on everolimus exposure. Two patients (14.3%) had stable disease as best response in arm A, and seven (41.2%) in arm B, including one patient with T-acute lymphoblastic leukemia with significant blast count reduction. Alterations considered for enrichment were present in 25 patients (81%) and in eight of nine patients with stable disease; the leukemia exhibited CDKN2A/B and PTEN deficiency. CONCLUSION Ribociclib in combination with TOTEM or everolimus was well-tolerated. The observed activity signals initiated a follow-up study of the ribociclib-everolimus combination in a population enriched with molecular alterations within both pathways.
Collapse
Affiliation(s)
- Francisco Bautista
- Hospital Niño Jesús, Department of Pediatric Oncology, Hematology and Stem Cell Transplantation, Madrid, Spain
| | - Xavier Paoletti
- Gustave Roussy Cancer Campus, Biostatistics and Epidemiology Unit, INSERM U1018, CESP, Université Paris-Saclay, UVSQ, Villejuif, France
- Current address: Institut Curie, INSERM U900 STAMPM, UVSQ, St Cloud, France
| | - Jonathan Rubino
- Gustave Roussy Cancer Campus, Clinical Research Direction, Villejuif, France
| | - Caroline Brard
- Gustave Roussy Cancer Campus, Biostatistics and Epidemiology Unit, INSERM U1018, CESP, Université Paris-Saclay, UVSQ, Villejuif, France
| | - Keyvan Rezai
- Institut Curie, Radio-Pharmacology Department, Saint Cloud, France
| | - Souad Nebchi
- Gustave Roussy Cancer Campus, Biostatistics and Epidemiology Unit, INSERM U1018, CESP, Université Paris-Saclay, UVSQ, Villejuif, France
| | - Nicolas Andre
- Department of Pediatric Oncology, Hôpital de la Timone, AP-HM, Marseille, France
- UMR Inserm 1068, CNRS UMR 7258, Aix Marseille Université U105, Marseille Cancer Research Center (CRCM), Marseille, France
| | - Isabelle Aerts
- SIREDO Oncology Center (Care, Innovation and research for children and AYA with cancer), Institut Curie, PSL Research University, Paris, France
| | - Emilie De Carli
- Department of Pediatric Oncology, University Hospital, Angers, France
| | | | - Estelle Thebaud
- Department of Pediatric Oncology, Centre Hospitalier Universitaire, Nantes, France
| | - Nadege Corradini
- Pediatric Oncology Department, Institut of Pediatric Hematology and Oncology, Centre Leon Berard, Lyon, France
| | | | - Stephane Ducassou
- Centre Hospitalier Universitaire Pellegrin-Hôpital des Enfants, Bordeaux, France
| | - Raphael J Morscher
- Gustave Roussy Cancer Campus, Department of Pediatric and Adolescent Oncology, Université Paris-Saclay, Villejuif, France
- INSERM U1015, Gustave Roussy Cancer Campus, Université Paris-Saclay, Villejuif, France
| | - Gilles Vassal
- Gustave Roussy Cancer Campus, Clinical Research Direction, Villejuif, France
| | - Birgit Geoerger
- Gustave Roussy Cancer Campus, Department of Pediatric and Adolescent Oncology, Université Paris-Saclay, Villejuif, France
- INSERM U1015, Gustave Roussy Cancer Campus, Université Paris-Saclay, Villejuif, France
| |
Collapse
|
5
|
Morscher RJ, Brard C, Berlanga P, Marshall LV, André N, Rubino J, Aerts I, De Carli E, Corradini N, Nebchi S, Paoletti X, Mortimer P, Lacroix L, Pierron G, Schleiermacher G, Vassal G, Geoerger B. First-in-child phase I/II study of the dual mTORC1/2 inhibitor vistusertib (AZD2014) as monotherapy and in combination with topotecan-temozolomide in children with advanced malignancies: arms E and F of the AcSé-ESMART trial. Eur J Cancer 2021; 157:268-277. [PMID: 34543871 DOI: 10.1016/j.ejca.2021.08.010] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 07/15/2021] [Accepted: 08/09/2021] [Indexed: 10/20/2022]
Abstract
AIM Arms E and F of the AcSé-ESMART phase I/II platform trial aimed to define the recommended dose and preliminary activity of the dual mTORC1/2 inhibitor vistusertib as monotherapy and with topotecan-temozolomide in a molecularly enriched population of paediatric patients with relapsed/refractory malignancies. In addition, we evaluated genetic phosphatidylinositol 3-kinase (PI3K)/AKT/ mammalian (or mechanistic) target of rapamycin (mTOR) pathway alterations across the Molecular Profiling for Paediatric and Young Adult Cancer Treatment Stratification (MAPPYACTS) trial (NCT02613962). EXPERIMENTAL DESIGN AND RESULTS Four patients were treated in arm E and 10 in arm F with a median age of 14.3 years. Main diagnoses were glioma and sarcoma. Dose escalation was performed as per the continuous reassessment method, expansion in an Ensign design. The vistusertib single agent administered at 75 mg/m2 twice a day (BID) on 2 days/week and vistusertib 30 mg/m2 BID on 3 days/week combined with temozolomide 100 mg/m2/day and topotecan 0.50 mg/m2/day on the first 5 days of each 4-week cycle were safe. Treatment was well tolerated with the main toxicity being haematological. Pharmacokinetics indicates equivalent exposure in children compared with adults. Neither tumour response nor prolonged stabilisation was observed, including in the 12 patients whose tumours exhibited PI3K/AKT/mTOR pathway alterations. Advanced profiling across relapsed/refractory paediatric cancers of the MAPPYACTS cohort shows genetic alterations associated with this pathway in 28.0% of patients, with 10.5% carrying mutations in the core pathway genes. CONCLUSIONS Vistusertib was well tolerated in paediatric patients. Study arms were terminated because of the absence of tumour responses and insufficient target engagement of vistusertib observed in adult trials. Targeting the PI3K/AKT/mTOR pathway remains a therapeutic avenue to be explored in paediatric patients. CLINICAL TRIAL IDENTIFIER NCT2813135.
Collapse
Affiliation(s)
- Raphael J Morscher
- Gustave Roussy Cancer Campus, Department of Paediatric and Adolescent Oncology, Villejuif, France; INSERM U1015, Gustave Roussy Cancer Campus, Université Paris-Saclay, Villejuif, France
| | - Caroline Brard
- Gustave Roussy Cancer Campus, Biostatistics and Epidemiology Unit, INSERM U1018, CESP, Université Paris-Saclay, Université Paris-Sud, UVSQ, Villejuif, France
| | - Pablo Berlanga
- Gustave Roussy Cancer Campus, Department of Paediatric and Adolescent Oncology, Villejuif, France
| | - Lynley V Marshall
- Paediatric and Adolescent Oncology Drug Development Unit, The Royal Marsden Hospital & The Institute of Cancer Research, London, United Kingdom
| | - Nicolas André
- Department of Paediatric Hematology & Oncology, Hôpital de la Timone, AP-HM, Marseille, France; UMR Inserm 1068, CNRS UMR 7258, Aix Marseille Université U105, Marseille Cancer Research Center (CRCM), Marseille, France
| | - Jonathan Rubino
- Gustave Roussy Cancer Campus, Clinical Research Direction, Villejuif, France
| | - Isabelle Aerts
- SIREDO Oncology Center, Institut Curie, PSL Research University, Paris, France
| | - Emilie De Carli
- Centre Hospitalier Universitaire, Department of Paediatric Oncology, Angers, France
| | - Nadège Corradini
- Pediatric Oncology Department, Institute of Pediatric Hematology and Oncology, Centre Leon Berard, Lyon, France
| | - Souad Nebchi
- Gustave Roussy Cancer Campus, Biostatistics and Epidemiology Unit, INSERM U1018, CESP, Université Paris-Saclay, Université Paris-Sud, UVSQ, Villejuif, France
| | - Xavier Paoletti
- Gustave Roussy Cancer Campus, Biostatistics and Epidemiology Unit, INSERM U1018, CESP, Université Paris-Saclay, Université Paris-Sud, UVSQ, Villejuif, France
| | | | - Ludovic Lacroix
- Department of Medical Biology and Pathology of Translational Research and Biobank, AMMICA, Laboratory INSERM US23/CNRS UMS3655, Gustave Roussy Cancer Campus, Université Paris-Saclay, 94805 Villejuif, France
| | - Gaelle Pierron
- Unité de Génétique Somatique, Service d'oncogénétique, Institut Curie, Centre Hospitalier, Paris, France
| | - Gudrun Schleiermacher
- SIREDO Oncology Center, Institut Curie, PSL Research University, Paris, France; Laboratory of Translational Research in Paediatric Oncology - INSERM U830, Paris, France
| | - Gilles Vassal
- Gustave Roussy Cancer Campus, Clinical Research Direction, Villejuif, France
| | - Birgit Geoerger
- Gustave Roussy Cancer Campus, Department of Paediatric and Adolescent Oncology, Villejuif, France; INSERM U1015, Gustave Roussy Cancer Campus, Université Paris-Saclay, Villejuif, France.
| |
Collapse
|