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Cole KA, Ijaz H, Surrey LF, Santi M, Liu X, Minard CG, Maris JM, Voss S, Reid JM, Fox E, Weigel BJ. Pediatric phase 2 trial of a WEE1 inhibitor, adavosertib (AZD1775), and irinotecan for relapsed neuroblastoma, medulloblastoma, and rhabdomyosarcoma. Cancer 2023; 129:2245-2255. [PMID: 37081608 PMCID: PMC10628947 DOI: 10.1002/cncr.34786] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 12/20/2022] [Accepted: 12/27/2022] [Indexed: 04/22/2023]
Abstract
BACKGROUND Inhibition of the WEE1 kinase by adavosertib (AZD1775) potentiates replicative stress from genomic instability or chemotherapy. This study reports the pediatric solid tumor phase 2 results of the ADVL1312 trial combining irinotecan and adavosertib. METHODS Pediatric patients with recurrent neuroblastoma (part B), medulloblastoma/central nervous system embryonal tumors (part C), or rhabdomyosarcoma (part D) were treated with irinotecan and adavosertib orally for 5 days every 21 days. The combination was considered effective if there were at least three of 20 responses in parts B and D or six of 19 responses in part C. Tumor tissue was analyzed for alternative lengthening of telomeres and ATRX. Patient's prior tumor genomic analyses were provided. RESULTS The 20 patients with neuroblastoma (part B) had a median of three prior regimens and 95% had a history of prior irinotecan. There were three objective responses (9, 11, and 18 cycles) meeting the protocol defined efficacy end point. Two of the three patients with objective responses had tumors with alternative lengthening of telomeres. One patient with pineoblastoma had a partial response (11 cycles), but parts C and D did not meet the protocol defined efficacy end point. The combination was well tolerated and there were no dose limiting toxicities at cycle 1 or beyond in any parts of ADVL1312 at the recommended phase 2 dose. CONCLUSION This is first phase 2 clinical trial of adavosertib in pediatrics and the first with irinotecan. The combination may be of sufficient activity to consider further study of adavosertib in neuroblastoma.
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Affiliation(s)
- Kristina A. Cole
- Children’s Hospital of Philadelphia and Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Heba Ijaz
- Children’s Hospital of Philadelphia and Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Lea F. Surrey
- Children’s Hospital of Philadelphia and Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Mariarita Santi
- Children’s Hospital of Philadelphia and Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Xiaowei Liu
- Children’s Oncology Group, Monravia, California, USA
| | | | - John M. Maris
- Children’s Hospital of Philadelphia and Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Stephan Voss
- Dana‐Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts, USA
| | | | - Elizabeth Fox
- St Jude Children’s Research Hospital, Memphis, Tennessee, USA
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Yang J, Jia L, He Z, Wang Y. Recent advances in SN-38 drug delivery system. Int J Pharm 2023; 637:122886. [PMID: 36966982 DOI: 10.1016/j.ijpharm.2023.122886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 03/06/2023] [Accepted: 03/21/2023] [Indexed: 03/30/2023]
Abstract
DNA topoisomerase I plays a key role in lubricatingthe wheels of DNA replication or RNA transcription through breaking and reconnecting DNA single-strand. It is widely known that camptothecin and its derivatives (CPTs) have inhibitory effects on topoisomerases I, and have obtained some clinical benefits in cancer treatment. The potent cytotoxicity makes 7-ethyl-10-hydroxycamptothecin (SN-38) become a brilliant star among these derivatives. However, some undesirable physical and chemical properties of this compound, including poor solubility and stability, seriously hinder its effective delivery to tumor sites. In recent years, strategies to alleviate these defects have aroused extensive research interest. By focusing on the loading mechanism, basic nanodrug delivery systems with SN-38 loaded, like nanoparticles, liposomes and micelles, are demonstrated here. Additionally, functionalized nanodrug delivery systems of SN-38 including prodrug and active targeted nanodrug delivery systems and delivery systems designed to overcome drug resistance are also reviewed. At last, challenges for future research in formulation development and clinical translation of SN-38 drug delivery system are discussed.
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Alferiev IS, Guerrero DT, Soberman D, Guan P, Nguyen F, Kolla V, Fishbein I, Pressly BB, Brodeur GM, Chorny M. Nanocarrier-Based Delivery of SN22 as a Tocopheryl Oxamate Prodrug Achieves Rapid Tumor Regression and Extends Survival in High-Risk Neuroblastoma Models. Int J Mol Sci 2022; 23:ijms23031752. [PMID: 35163672 PMCID: PMC8836113 DOI: 10.3390/ijms23031752] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 01/25/2022] [Accepted: 01/28/2022] [Indexed: 02/04/2023] Open
Abstract
Despite the use of intensive multimodality therapy, the majority of high-risk neuroblastoma (NB) patients do not survive. Without significant improvements in delivery strategies, anticancer agents used as a first-line treatment for high-risk tumors often fail to provide clinically meaningful results in the settings of disseminated, recurrent, or refractory disease. By enhancing pharmacological selectivity, favorably shifting biodistribution, strengthening tumor cell killing potency, and overcoming drug resistance, nanocarrier-mediated delivery of topoisomerase I inhibitors of the camptothecin family has the potential to dramatically improve treatment efficacy and minimize side effects. In this study, a structurally enhanced camptothecin analog, SN22, reversibly coupled with a redox-silent tocol derivative (tocopheryl oxamate) to allow its optimally stable encapsulation and controlled release from PEGylated sub-100 nm nanoparticles (NP), exhibited strong NB cell growth inhibitory activity, translating into rapid regression and durably suppressed regrowth of orthotopic, MYCN-amplified NB tumors. The robust antitumor effects and markedly extended survival achieved in preclinical models recapitulating different phases of high-risk disease (at diagnosis vs. at relapse with an acquired loss of p53 function after intensive multiagent chemotherapy) demonstrate remarkable potential of SN22 delivered in the form of a hydrolytically cleavable superhydrophobic prodrug encapsulated in biodegradable nanocarriers as an experimental strategy for treating refractory solid tumors in high-risk cancer patients.
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Makimoto A, Mugishima H, Taga T, Ishida Y, Nagatoshi Y, Ida K, Kumagai M, Kimura T, Ohashi Y, Kaneko M. Registration-directed phase 1/2 trial of irinotecan for pediatric solid tumors. Pediatr Int 2019; 61:453-458. [PMID: 30859690 DOI: 10.1111/ped.13826] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Revised: 12/22/2018] [Accepted: 03/06/2019] [Indexed: 12/14/2022]
Abstract
BACKGROUND Although irinotecan hydrochloride (IRI) is a promising chemotherapeutic agent for pediatric solid tumors, its indications had been off-label in the USA, EU and Japan. Therefore, we conducted a phase 1/2 trial of IRI monotherapy in a registration-directed setting. METHODS Children aged 2-18 years with solid tumors who were either refractory to or relapsed after standard chemotherapy were enrolled. Phase 1 was a conventional dose escalation study to determine the dose-limiting toxicity (DLT) and the recommended dose. IRI was given i.v. on days 1, 2, 3 and 8, 9, 10 in up to eight, 21 day cycles. RESULTS The starting dose (40 mg/m2 /day) was determined to be the recommended dose because the next higher dose level (45 mg/m2 /day) resulted in two cases of DLT. Seventeen children (11 in phase 1 and six in phase 2) with a refractory solid tumor received IRI. Of the 12 patients treated with 40 mg/m2 /day, seven (58.3%) achieved a stable disease condition for >8 weeks. CONCLUSIONS The RD of IRI in this treatment schedule was 40 mg/m2 /day. IRI did not cause tumor shrinkage but might help to stabilize refractory pediatric solid tumors. Based on the accumulating evidence from international studies of the efficacy of IRI against refractory pediatric solid tumors, the Japanese regulatory authority approved its use for this indication in 2011.
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Affiliation(s)
- Atsushi Makimoto
- Department of Pediatric Oncology, National Cancer Center Hospital (affiliated until 2013), Tokyo, Japan.,Department of Hematology Oncology, Tokyo Metropolitan Children's Medical Center, Tokyo, Japan
| | - Hideo Mugishima
- Department of Pediatrics, Nihon University School of Medicine, Tokyo, Japan
| | - Takashi Taga
- Department of Pediatrics, Shiga University of Medical Science, Shiga, Japan
| | - Yuji Ishida
- Department of Pediatric Oncology, Shizuoka Cancer Center, Shizuoka, Japan
| | - Yoshihisa Nagatoshi
- Department of Pediatric Oncology, National Kyushu Cancer Center, Fukuoka, Japan
| | - Kohmei Ida
- Department of Pediatrics, Teikyo University Mizonokuchi Hospital, Kanagawa, Japan
| | - Masaaki Kumagai
- Department of Hematology/Oncology, National Center for Child Health and Development, Tokyo, Japan
| | - Toshimi Kimura
- Department of Pharmacy, Tokyo Women's Medical University, Tokyo, Japan
| | - Yasuo Ohashi
- Department of Integrated Science and Engineering for Sustainable Society, Chuo University, Tokyo, Japan
| | - Michio Kaneko
- Department of Pediatric Surgery, University of Tsukuba School of Medicine, Ibaraki, Japan
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Amoroso L, Haupt R, Garaventa A, Ponzoni M. Investigational drugs in phase II clinical trials for the treatment of neuroblastoma. Expert Opin Investig Drugs 2017; 26:1281-1293. [PMID: 28906153 DOI: 10.1080/13543784.2017.1380625] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
INTRODUCTION Neuroblastoma (NB) is an embryonal tumor originating from undifferentiated neural crest cell, highly heterogeneous ranging from spontaneous regression to progression despite multimodal treatments. Approximately, 20% of patients are refractory to frontline therapy and 50% will relapse/progress after an initial response. The overall five year survival for high-risk neuroblastoma ranges from 35-45%. Despite enhanced understanding of NB biology and the addition of myeloablative chemotherapy, isotretinoin and immunotherapy, survival for high risk NB remains less than 50%. Areas covered: This review summarizes and gives a critical overview of phase II trials investigating therapies for relapsed-refractory and high risk neuroblastoma. Expert opinion: Several novel molecules have been developed and are currently under investigation for the treatment of NB. The trend of novel targeted agents is one towards individualized, tailored therapy, based on the molecular and biological differences that characterize tumors that seem similar based solely on histological analysis. The task of developing new molecules is particularly difficult for NB, given the recurrent development of new patterns of drug resistance. However, even if current research is focused towards identifying the best treatments for each children and young adult with a NB defined disease, a deeper knowledge of the molecular biology and genetics is needed.
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Affiliation(s)
- Loredana Amoroso
- a Department of Pediatric Oncology , Istituto G.Gaslini , Genova , Italy
| | - Riccardo Haupt
- b Epidemiology and Biostatistics Unit , Istituto G.Gaslini , Genova , Italy
| | - Alberto Garaventa
- a Department of Pediatric Oncology , Istituto G.Gaslini , Genova , Italy
| | - Mirco Ponzoni
- c Experimental Therapy Unit in Oncology , Istituto G. Gaslini , Genova , Italy
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Modak S, Kushner BH, Basu E, Roberts SS, Cheung NKV. Combination of bevacizumab, irinotecan, and temozolomide for refractory or relapsed neuroblastoma: Results of a phase II study. Pediatr Blood Cancer 2017; 64:10.1002/pbc.26448. [PMID: 28111925 PMCID: PMC5555116 DOI: 10.1002/pbc.26448] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Revised: 12/16/2016] [Accepted: 12/19/2016] [Indexed: 02/02/2023]
Abstract
BACKGROUND The rationale for studying the combination of bevacizumab, irinotecan, and temozolomide (BIT) in neuroblastoma (NB) is based on the following: (i) vascular endothelial growth factor (VEGF) expression is associated with an aggressive phenotype, (ii) anti-VEGF antibody bevacizumab enhances irinotecan-mediated suppression of NB xenografts, (iii) bevacizumab safety has been established in pediatric phase I studies, and (iv) irinotecan + temozolomide (IT) is a standard salvage chemotherapy. PROCEDURE We conducted a phase II study of BIT in patients with measurable/evaluable refractory or relapsed high-risk NB (www.clinicaltrials.gov, NCT01114555). Each cycle consisted of bevacizumab (15 mg/kg intravenously [IV]) on days 1 and 15 plus irinotecan (50 mg/m2 /day IV) and temozolomide (150 mg/m2 /day orally) on days 4-8. Patients could have previously received, but not relapsed on, IT. An early stopping rule mandated continuing therapy only if more than five patients of 27 evaluable patients achieved partial response (PR) or complete response (CR) after four cycles. RESULTS Thirty-three heavily pretreated patients (nine primary refractory; 24 relapsed) received one to eight cycles of BIT. Toxicities were expected and transient. Grade 4 toxicities were neutropenia (30%) and thrombocytopenia (24%). Grade 3 toxicities included hepatic transaminitis (15%), proteinuria (9%), and diarrhea (3%). Overall responses were as follows: three CR (all in prior IT-treated patients), 18 no response, and 12 progressive disease. Only one of 23 patients assessable for the early stopping rule regarding efficacy achieved PR/CR, so patient accrual was discontinued. Median progression-free survival and overall survival was 7.7 ± 1.7 and 31.5 ± 5.6 months, respectively; all patients continued anti-NB therapy post-BIT. CONCLUSIONS BIT was well tolerated, but the addition of bevacizumab did not improve response rates in resistant NB compared to historical data for IT.
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Affiliation(s)
- Shakeel Modak
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, 1275 York Ave. New York, New York 10065, USA
| | - Brian H. Kushner
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, 1275 York Ave. New York, New York 10065, USA
| | - Ellen Basu
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, 1275 York Ave. New York, New York 10065, USA
| | - Stephen S. Roberts
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, 1275 York Ave. New York, New York 10065, USA
| | - Nai-Kong V. Cheung
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, 1275 York Ave. New York, New York 10065, USA
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Additional Therapies to Improve Metastatic Response to Induction Therapy in Children With High-risk Neuroblastoma. J Pediatr Hematol Oncol 2015. [PMID: 26201036 DOI: 10.1097/mph.0000000000000308] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Children with high-risk neuroblastoma who fail to achieve adequate metastatic response after induction chemotherapy have dismal outcome and new therapeutic strategies are needed. However, timing of introduction of novel agents still remains under discussion. Given an increase in number of phase I-II studies of molecularly targeted drugs in neuroblastoma, it is crucial to determine, as early as possible, which patients may be suitable candidates for new therapeutic strategies. This single-center retrospective analysis of patients with high-risk neuroblastoma showed that the addition of conventional chemotherapy improved the quality of metastatic response only for the group of patients with partial response. It is therefore proposed to develop stratification criteria for those patients very unlikely to benefit from a plethora of additional lines of treatment, but might benefit from introduction of novel agents.
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Patients in pediatric phase I and early phase II clinical oncology trials at Gustave Roussy: a 13-year center experience. J Pediatr Hematol Oncol 2015; 37:e102-10. [PMID: 25171452 DOI: 10.1097/mph.0000000000000237] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
In the European Union, the pediatric medicines regulation in 2007 modified significantly the access to new agents in pediatric oncology. Early oncology trials are still thought to be associated with limited benefit and substantial risk. We report the characteristics and outcome of patients below 21 years enrolled in investigational trials in the Pediatric and Adolescent Department at Gustave Roussy between January 2000 and December 2012. A total of 235 patients (median age, 10.4 [0.8 to 20.7] y) were included in 26 trials (16 cytotoxic and 10 targeted agents) for a total of 260 inclusions. A total of 117 patients (50%) had brain tumors and 68 (29%) had various soft tissue and bone sarcoma. Thirteen of the 106 patients in a phase I trial experienced dose-limiting toxicity. Main severe toxicity was hematologic; none had toxic death. Grade 3 to 4 toxicities were associated with combination trials, cytotoxic agent, and at least 1 previous line of therapy. Thirty patients (12%) had objective response and 42 (16%) had stable disease for >4 months. Median overall survival was 9.0 months (95% CI, 7.5-10.5) and 73% of patients received further anticancer treatment. Phase I to II pediatric oncology trials are safe, associated with clinical benefit, and can be successfully integrated in current relapse strategies.
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Morland B, Platt K, Whelan JS. A phase II window study of irinotecan (CPT-11) in high risk Ewing sarcoma: a Euro-E.W.I.N.G. study. Pediatr Blood Cancer 2014; 61:442-5. [PMID: 24019263 DOI: 10.1002/pbc.24767] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2013] [Accepted: 08/16/2013] [Indexed: 11/06/2022]
Abstract
BACKGROUND The prognosis for patients with nonpulmonary metastatic Ewing sarcoma remains poor with survival in the order of 15-20%. The need to introduce effective new agents into clinical practice is clear. Based on a preclinical rationale of responses in xenografts and backed by a phase I study in children, the Euro-E.W.I.N.G consortium planned a phase II window study of irinotecan in newly diagnosed high risk metastatic patients with Ewing sarcoma. PROCEDURES Patients were recruited between April 2004 and December 2007. Two courses of irinotecan were administered at a dose of 600 mg/m(2) as a 1 hour infusion at 21 day intervals. Response evaluation was determined after the second course of treatment by radiological assessment of primary and metastatic sites and, where appropriate bone marrow sampling. RESULTS Twenty-three patients were recruited. Two patients were deemed inevaluable for response. Five patients (24%) demonstrated a partial response. Grade 3 or 4 diarrhoea was seen in 4/43 course of treatment and was managed with loperamide. CONCLUSIONS This is the first report of single agent irinotecan activity in an untreated population of patients with Ewing sarcoma. In common with other paediatric tumours and other camptothecin analogues such as topotecan, single agent activity is only modest. The exact role for the use of irinotecan in patients with ES, dose schedule and combinations with other agents still requires further investigation.
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Affiliation(s)
- B Morland
- Department of Oncology, Birmingham Children's Hospital, Birmingham, UK
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Di Giannatale A, Dias-Gastellier N, Devos A, Mc Hugh K, Boubaker A, Courbon F, Verschuur A, Ducassoul S, Malekzadeh K, Casanova M, Amoroso L, Chastagner P, Zwaan CM, Munzer C, Aerts I, Landman-Parker J, Riccardi R, Le Deley MC, Geoerger B, Rubie H. Phase II study of temozolomide in combination with topotecan (TOTEM) in relapsed or refractory neuroblastoma: a European Innovative Therapies for Children with Cancer-SIOP-European Neuroblastoma study. Eur J Cancer 2013; 50:170-7. [PMID: 24021349 DOI: 10.1016/j.ejca.2013.08.012] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2013] [Revised: 08/07/2013] [Accepted: 08/12/2013] [Indexed: 11/25/2022]
Abstract
PURPOSE To assess objective response rate (ORR) after two cycles of temozolomide in combination with topotecan (TOTEM) in children with refractory or relapsed neuroblastoma. PATIENTS AND METHODS This multicenter, non-randomised, phase II study included children with neuroblastoma according to a two-stage Simon design. Eligibility criteria included relapsed or refractory, measurable or metaiodobenzylguanidine (mIBG) evaluable disease, no more than two lines of prior treatment. Temozolomide was administered orally at 150mg/m(2) followed by topotecan at 0.75mg/m(2) intravenously for five consecutive days every 28days. Tumour response was assessed every two cycles according to International Neuroblastoma Response Criteria (INRC), and reviewed independently. RESULTS Thirty-eight patients were enroled and treated in 15 European centres with a median age of 5.4years. Partial tumour response after two cycles was observed in 7 out of 38 evaluable patients [ORR 18%, 95% confidence interval (CI) 8-34%]. The best ORR whatever the time of evaluation was 24% (95% CI, 11-40%) with a median response duration of 8.5months. Tumour control rate (complete response (CR)+partial response (PR)+mixed response (MR)+stable disease (SD)) was 68% (95% CI, 63-90%). The 12-months Progression-Free and Overall Survival were 42% and 58% respectively. Among 213 treatment cycles (median 4, range 1-12 per patient) the most common treatment-related toxicities were haematologic. Grade 3/4 neutropenia occurred in 62% of courses in 89% of patients, grade 3/4 thrombocytopenia in 47% of courses in 71% of patients; three patients (8%) had febrile neutropenia. CONCLUSION Temozolomide-Topotecan combination results in very encouraging ORR and tumour control in children with heavily pretreated recurrent and refractory neuroblastoma with favourable toxicity profile.
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Affiliation(s)
- Angela Di Giannatale
- Institut Gustave Roussy, Université Paris-Sud, 114 Rue Edouard Vaillant, 94805 Villejuif, France
| | - Nathalie Dias-Gastellier
- Institut Gustave Roussy, Université Paris-Sud, 114 Rue Edouard Vaillant, 94805 Villejuif, France
| | - Annick Devos
- Sophia Children's Hospital/Erasmus MC Rotterdam, 60 Dr. Molewaterplein, 3015 GJ Rotterdam, The Netherlands
| | - Kieran Mc Hugh
- Great Ormond Street Hospital, 34 Great Ormond Street, Bloomsbury, London WC1N 3JH, United Kingdom
| | - Ariane Boubaker
- Centre Hospitalier Universitaire Vaudois, 46 Rue du Bugnon, 1011 Lausanne, Switzerland
| | - Frederic Courbon
- Institut Claudius Regaud, 20-24 Rue du pont Saint-Pierre, 31052 Toulouse Cedex, France
| | - Arnaud Verschuur
- Hôpital de la Timone, 264 Rue Saint Pierre, 13385 Marseille Cedex 5, France
| | - Stéphane Ducassoul
- Centre Hospitalier Pellegrin Hôpital des Enfants, Place Amélie Raba-Léon, 33076 Bordeaux, France
| | - Katty Malekzadeh
- Institut Gustave Roussy, Université Paris-Sud, 114 Rue Edouard Vaillant, 94805 Villejuif, France
| | - Michela Casanova
- Fondazione IRCCS Istituto Nazionale Tumori, 1 Via Venezian, 20133 Milano, Italy
| | - Loredana Amoroso
- Istituto Giannina Gaslini, 5 Via Gerolamo Gaslini, 16147 Genova, Italy
| | | | - Christian M Zwaan
- Sophia Children's Hospital/Erasmus MC Rotterdam, 60 Dr. Molewaterplein, 3015 GJ Rotterdam, The Netherlands
| | - Caroline Munzer
- Hôpital des Enfants, 330 Avenue de Grande Bretagne, 31059 Toulouse Cedex 9, France
| | - Isabelle Aerts
- Universita Cattolica, Gemelli, Largo A. Gemelli 8, 00168 Roma, Italy
| | | | - Riccardo Riccardi
- Hôpital d'Enfants Armand-Trousseau, 26 Avenue du Docteur Arnold Netter, 75571 Paris, France
| | - Marie-Cecile Le Deley
- Institut Gustave Roussy, Université Paris-Sud, 114 Rue Edouard Vaillant, 94805 Villejuif, France
| | - Birgit Geoerger
- Institut Gustave Roussy, Université Paris-Sud, 114 Rue Edouard Vaillant, 94805 Villejuif, France
| | - Hervé Rubie
- Hôpital des Enfants, 330 Avenue de Grande Bretagne, 31059 Toulouse Cedex 9, France.
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Current and future strategies for relapsed neuroblastoma: challenges on the road to precision therapy. J Pediatr Hematol Oncol 2013; 35:337-47. [PMID: 23703550 DOI: 10.1097/mph.0b013e318299d637] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
More than half of the patients with high-risk neuroblastoma (NB) will relapse despite intensive multimodal therapy, with an additional 10% to 20% refractory to induction chemotherapy. Management of these patients is challenging, given disease heterogeneity, resistance, and organ toxicity including poor hematological reserve. This review will discuss the current treatment options and consider novel therapies on the horizon. Cytotoxic chemotherapy regimens for relapse and refractory NB typically center on the use of the camptothecins, topotecan and irinotecan, in combination with agents such as cyclophosphamide and temozolomide, with objective responses but poor long-term survival. I-meta-iodobenzylguanidine therapy is also effective for relapsed patients with meta-iodobenzylguanidine-avid disease, with objective responses in a third of cases. Immunotherapy with anti-GD2 has recently been incorporated into upfront therapy, but its role in the relapse setting remains uncertain, especially for patients with bulky disease. Future cell-based immunotherapies and other approaches may be able to overcome this limitation. Finally, many novel molecularly targeted agents are in development, some of which show specific promise for NB. Successful incorporation of these agents will require combinations with conventional cytotoxic chemotherapies, as well as the development of predictive biomarkers, to ultimately personalize approaches to patients with "targetable" molecular abnormalities.
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Gains J, Mandeville H, Cork N, Brock P, Gaze M. Ten challenges in the management of neuroblastoma. Future Oncol 2013; 8:839-58. [PMID: 22830404 DOI: 10.2217/fon.12.70] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Neuroblastoma is a complex disease with many contradictions and challenges. It is, by and large, a cancer of babies and preschool children, but it does occur, albeit increasingly rarely, in older children, adolescents and young adults. The prognosis is very variable, with outcome related to age, stage and molecular pathology. Neuroblastoma may behave in an almost benign way, with spontaneous regression in some infants, but the majority of older patients have high-risk disease, which is usually fatal, despite best current treatments. As a rare disease, international collaboration is essential to run clinical trials of adequate statistical power to answer important questions in a reasonable time frame. High-risk disease requires multimodality therapy including chemotherapy, surgery and radiotherapy as well as biological and immunological treatments for optimal outcomes. Innovative treatment approaches, sometimes associated with appreciable toxicity, offer hope for the future but, despite parental wishes, cannot be generally implemented without adequate assessment in clinical trials.
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Affiliation(s)
- Jennifer Gains
- Department of Oncology, University College London Hospitals NHS Foundation Trust, 250 Euston Road, London NW1 2PG, UK
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Zsíros J, Brugières L, Brock P, Roebuck D, Maibach R, Child M, Morland B, Casanova M, Pariente D, Paris C, Camargo BD, Ronghe M, Zimmermann A, Plaschkes J, Czauderna P, Perilongo G. Efficacy of irinotecan single drug treatment in children with refractory or recurrent hepatoblastoma – A phase II trial of the childhood liver tumour strategy group (SIOPEL). Eur J Cancer 2012; 48:3456-64. [DOI: 10.1016/j.ejca.2012.06.023] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2012] [Revised: 06/18/2012] [Accepted: 06/28/2012] [Indexed: 10/28/2022]
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14
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Hara J. Development of treatment strategies for advanced neuroblastoma. Int J Clin Oncol 2012; 17:196-203. [DOI: 10.1007/s10147-012-0417-5] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2012] [Indexed: 12/11/2022]
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Furman WL, McGregor LM, McCarville MB, Onciu M, Davidoff AM, Kovach S, Hawkins D, McPherson V, Houghton PJ, Billups CA, Wu J, Stewart CF, Santana VM. A single-arm pilot phase II study of gefitinib and irinotecan in children with newly diagnosed high-risk neuroblastoma. Invest New Drugs 2011; 30:1660-70. [PMID: 21796439 DOI: 10.1007/s10637-011-9724-3] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2011] [Accepted: 07/19/2011] [Indexed: 02/06/2023]
Abstract
BACKGROUND Gefitinib potently inhibits neuroblastoma proliferation in vitro, and the gefitinib/irinotecan combination shows greater than additive activity against neuroblastoma xenografts. This Phase II pilot study estimated the rate of response to two courses of intravenous irinotecan plus oral gefitinib in children with untreated high-risk neuroblastoma. METHODS Two courses of irinotecan [15 mg/m(2)/day (daily ×5)×2] were combined with 12 daily doses of gefitinib (112.5 mg/m(2)/day). Response was assessed after 6 weeks. A response rate >55% was sought. RESULTS Of the 23 children enrolled, 19 were evaluable for response. Median age at diagnosis was 3.1 years (range, 18 days-12.7 years). Most patients were older than 24 months (n = 20; 87%), male (n = 18; 78%), white (n = 16; 70%), had INSS 4 disease (n = 19; 83%), and had adrenal primary tumors (n = 18; 78%); nine patients (39%) had amplified tumor MYCN. The toxicity of gefitinib/irinotecan was mild and reversible (nausea, 5/20; diarrhea, 8/20; vomiting, 7/20). Five patients had partial responses; 9 others had a 23%-60% decrease in primary tumor volume and/or improved MIBG scans or decreased bone or bone marrow tumor burden. Median (range) systemic irinotecan exposure (AUC) was 283 ng/ml*hr (range, 163-890 ng/ml*hr) and 28 ng/ml*hr (3.6-297 ng/ml*hr) for the active metabolite, SN-38. No relation was observed between response and tumor expression of EGFR, MRP2-4, ABCG2, and Pgp. CONCLUSIONS Although the gefitinib/irinotecan combination was very tolerable and induced responses, it was not sufficiently active to warrant further investigation. Initial investigational studies of this type can preclude the necessity for larger, longer, and costlier trials.
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Affiliation(s)
- Wayne L Furman
- Department of Oncology, St. Jude Children's Research Hospital, 262 Danny Thomas Place, Memphis, TN 38105, USA.
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Øra I, Eggert A. Progress in treatment and risk stratification of neuroblastoma: impact on future clinical and basic research. Semin Cancer Biol 2011; 21:217-28. [PMID: 21798350 DOI: 10.1016/j.semcancer.2011.07.002] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2011] [Accepted: 07/11/2011] [Indexed: 01/10/2023]
Abstract
Close international collaboration between pediatric oncologists has led to marked improvements in the cure of patients, seen as a long-term overall survival rate of about 80%. Despite this progress, neuroblastoma remains a challenging disease for both clinicians and researchers. Major clinical problems include lack of acceptable cure rates in high-risk neuroblastoma and potential overtreatment of subsets of patients at low and intermediate risk of the disease. Many years of intensive international cooperation have recently led to a promising joint effort to further improve risk classification for treatment stratification, the new International Neuroblastoma Risk Group Classification System. This approach will facilitate comparison of the results of clinical trials performed by different international collaborative groups. This, in turn, should accelerate refinement of risk stratification and thereby aid selection of appropriate therapies for individual patients. To be able to identify new therapeutic modalities, it will be necessary to elucidate the pathogenesis of the different subtypes of neuroblastoma. Basic and translational research have provided new tools for molecular characterization of blood and tumor samples including high-throughput technologies for analysis of DNA, mRNAs, microRNAs and other non-coding RNAs, as well as proteins and epigenetic markers. Most of these studies are array-based in design. In neuroblastoma research they aim to refine risk group stratification through incorporation of molecular tumor fingerprints and also to enable personalized treatment modalities by describing the underlying pathogenesis and aberrant signaling pathways in individual tumors. To make optimal use of these new technologies for the benefit of the patient, it is crucial to have a systematic and detailed documentation of both clinical and molecular data from diagnosis through treatment to follow-up. Close collaboration between clinicians and basic scientists will provide access to combined clinical and molecular data sets and will create more efficient steps in response to the remaining treatment challenges. This review describes the current efforts and trends in neuroblastoma research from a clinical perspective in order to highlight the urgent clinical problems we must address together with basic researchers.
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Affiliation(s)
- Ingrid Øra
- Department of Pediatric Oncology and Hematology, Skåne University Hospital, Lund University, Lund, Sweden.
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Simon T, Berthold F, Borkhardt A, Kremens B, De Carolis B, Hero B. Treatment and outcomes of patients with relapsed, high-risk neuroblastoma: results of German trials. Pediatr Blood Cancer 2011; 56:578-83. [PMID: 21298742 DOI: 10.1002/pbc.22693] [Citation(s) in RCA: 95] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2010] [Accepted: 05/17/2010] [Indexed: 11/11/2022]
Abstract
BACKGROUND The prognosis of high-risk neuroblastoma patients has improved over the last decades. However, many patients experience relapse after successful initial treatment. We retrospectively analyzed the long-term outcome of relapsed patients of three consecutive national neuroblastoma trials. METHODS Patients were included when they fulfilled all of the following criteria: Age at diagnosis being 1 year or older, first diagnosis between 1990 and 2007, stage 4 disease or stage 3 neuroblastoma with MYCN amplification, and relapse or progression after successful first-line autologous stem cell transplantation (ASCT). RESULTS A total of 451 high-risk neuroblastoma patients 1 year or older underwent ASCT during first-line treatment, 253 experienced recurrence of disease, 158 received salvage chemotherapy, and 23 of them finally underwent a second ASCT. These 23 patients had a better median survival (2.08 years) and 3-year survival rate from recurrence (43.5 ± 10.9%) compared to 74 patients who had no second chemotherapy (median survival 0.24 years, 3-year survival rate 4.0 ± 2.6%) and 135 patients who underwent second-line chemotherapy but did not undergo second ASCT (median survival of 0.89 years, 3-year survival rate 9.6 ± 2.8%, P < 0.001). By February 2010, 3/23 patients were in complete remission, 3/23 in very good partial remission, 1/23 in partial remission, 14/23 patients died of disease after successful second ASCT, and 2/23 died of complications due to second ASCT. CONCLUSION Intensive second-line therapy is feasible. A small subgroup of relapsed high-risk neuroblastoma patients may benefit from intensive relapse chemotherapy and second ASCT. The potential of long-term survival justifies clinical trials on intensive second-line treatment.
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Affiliation(s)
- Thorsten Simon
- Department of Pediatric Oncology and Hematology, Children's Hospital, University of Cologne, Cologne, Germany.
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Abdel Rahman H, Moussa EA, Zekri WZ, El Debawy E, Mostafa NE, Yones A, Ezzat S, El Rahman Rayan A. Did salvage ICE chemotherapy improve the outcome in primary resistant/relapsing stage III/IV neuroblastoma? J Egypt Natl Canc Inst 2011; 23:47-53. [DOI: 10.1016/j.jnci.2011.07.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2010] [Accepted: 02/09/2011] [Indexed: 11/24/2022] Open
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Activity of irinotecan and temozolomide in the presence of O6-methylguanine-DNA methyltransferase inhibition in neuroblastoma pre-clinical models. Br J Cancer 2010; 103:1369-79. [PMID: 20924375 PMCID: PMC2990610 DOI: 10.1038/sj.bjc.6605927] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Background: The combination of temozolomide (TMZ) and irinotecan is a regimen used in neuroblastoma patients with recurrent disease. O6-methylguanine-DNA methyltransferase (MGMT) may have a function in resistance to TMZ. Using neuroblastoma pre-clinical models, we determined whether the inhibition of MGMT by O6-benzylguanine (O6-BG) could enhance the anti-tumour activity of TMZ and irinotecan. Methods: The cytotoxicity of TMZ and irinotecan, either alone or in combination, was measured in five neuroblastoma cell lines in the presence or absence of O6-BG with a fluorescence-based cell viability assay (DIMSCAN). Anti-tumour activity was measured in three neuroblastoma xenograft models. Results: MGMT mRNA and protein were expressed in 9 out of 10 examined cell lines. Pretreatment of cells with 25 μM O6-BG decreased MGMT protein expression and enhanced The TMZ cytotoxicity by up to 0.3–1.4 logs in four out of five tested cell lines. TMZ (25 mg kg−1 per day for 5 days every 3 weeks for four cycles) did not significantly improve mice survival, whereas the same schedule of irinotecan (7.5 mg kg−1 per day) significantly improved survival (P<0.0001) in all three xenograft models. Combining O6-BG and/or TMZ with irinotecan further enhanced survival. Conclusion: Our in vitro and in vivo findings suggest that irinotecan drives the activity of irinotecan and TMZ in recurrent neuroblastoma. Inhibitors of MGMT warrant further investigation for enhancing the activity of regimens that include TMZ.
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Rubie H, Geoerger B, Frappaz D, Schmitt A, Leblond P, Ndiaye A, Aerts I, Deley MCL, Gentet JC, Paci A, Chastagner P, Dias N, Djafari L, Pasquet M, Chatelut E, Landman-Parker J, Corradini N, Vassal G. Phase I study of topotecan in combination with temozolomide (TOTEM) in relapsed or refractory paediatric solid tumours. Eur J Cancer 2010; 46:2763-70. [PMID: 20558056 DOI: 10.1016/j.ejca.2010.05.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2010] [Revised: 04/08/2010] [Accepted: 05/04/2010] [Indexed: 10/19/2022]
Abstract
PURPOSE To evaluate maximum tolerated dose and recommended dose (RD) for phase II studies of topotecan (TPT) combined with temozolomide (TMZ) (TOTEM) in children and adolescents with relapsed or refractory solid malignancies. PATIENTS AND METHODS Multicentre, phase I study with a standard '3+3' design in five dose increments. Eligible patients: aged 6 months to 21 years, diagnosis of a solid malignancy failed at least 2 previous lines of therapy. TMZ was administered orally, starting at 100 mg/m(2)/d, and TPT intravenously over 30 min, starting at 0.75 mg/m(2)/d over 5 consecutive days every 28 d. A pharmacokinetics analysis was performed on Day 1 and Day 5 of cycle 1. RESULTS Between February and October 2007, 16 patients were treated. The median age was 8.5 years (range, 3-19 years). Dose-limiting toxicity (grade 4 neutropenia and/or thrombocytopenia lasting more than 7 d) during the first cycle occurred in 2 of 3 patients at level 3 (TMZ 150 mg/m(2)/d and TPT 1.0 mg/m(2)/d) and was always manageable. Confirmed complete and partial responses were observed in 4 patients (25%), three with metastatic neuroblastoma and one with high-grade glioma. Seven patients had a stable disease. Pharmacokinetic data show a wide inter-individual variability. No significant differences were observed between plasma TMZ and TPT concentrations on Day 1 and Day 5 indicating the absence of pharmacokinetic interaction between the drugs. CONCLUSIONS The RD for the combination is TMZ 150 mg/m(2)/d and TPT 0.75 mg/m(2)/d with dose-limiting haematological toxicity. The observed activity deserves further evaluation in paediatric malignancies.
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Mascarenhas L, Lyden ER, Breitfeld PP, Walterhouse DO, Donaldson SS, Paidas CN, Parham DM, Anderson JR, Meyer WH, Hawkins DS. Randomized phase II window trial of two schedules of irinotecan with vincristine in patients with first relapse or progression of rhabdomyosarcoma: a report from the Children's Oncology Group. J Clin Oncol 2010; 28:4658-63. [PMID: 20837952 DOI: 10.1200/jco.2010.29.7390] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
PURPOSE To compare response rates for two schedules of irinotecan with vincristine in patients with rhabdomyosarcoma at first relapse or disease progression. PATIENTS AND METHODS Patients with first relapse or progression of rhabdomyosarcoma and an unfavorable prognosis were randomly assigned to one of two treatment schedules of irinotecan with vincristine: regimen 1A included irinotecan 20 mg/m(2)/d intravenously for 5 days at weeks 1, 2, 4, and 5 with vincristine 1.5 mg/m(2) administered intravenously on day 1 of weeks 1, 2, 4, and 5; regimen 1B included irinotecan 50 mg/m(2)/d intravenously for 5 days at weeks 1 and 4 with vincristine as in regimen 1A. Disease response was assessed at week 6. Those with responsive disease continued to receive 44 weeks of multiagent chemotherapy that incorporated the assigned irinotecan-vincristine regimen. RESULTS Ninety-two eligible patients were randomly assigned (1A, 45; 1B, 47). Response could be assessed in 89 patients (1A, 42; 1B, 47). There were five complete responses and six partial responses on regimen 1A (response rate, 26%; 95% CI, 16% to 42%) and 17 partial responses on regimen 1B (response rate, 37%; 95% CI, 25% to 51%; P = .36). Neutropenia was less common on regimen 1A (P = .04). One-year failure-free and overall survival rates for regimen 1A were 37% (95% CI, 23% to 51%) and 55% (95% CI, 39% to 69%), respectively, and for 1B, they were 38% (95% CI, 25% to 53%) and 60% (95% CI, 44% to 72%). CONCLUSION There was no difference in the response rates between the two irinotecan-vincristine schedules. We recommend the shorter, more convenient regimen (1B) for further investigation.
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Affiliation(s)
- Leo Mascarenhas
- Children's Hospital Los Angeles, University of Southern California Keck School of Medicine, Los Angeles, CA, USA.
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Pastorino F, Loi M, Sapra P, Becherini P, Cilli M, Emionite L, Ribatti D, Greenberger LM, Horak ID, Ponzoni M. Tumor Regression and Curability of Preclinical Neuroblastoma Models by PEGylated SN38 (EZN-2208), a Novel Topoisomerase I Inhibitor. Clin Cancer Res 2010; 16:4809-21. [DOI: 10.1158/1078-0432.ccr-10-1354] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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McNall-Knapp RY, Williams CN, Reeves EN, Heideman RL, Meyer WH. Extended phase I evaluation of vincristine, irinotecan, temozolomide, and antibiotic in children with refractory solid tumors. Pediatr Blood Cancer 2010; 54:909-15. [PMID: 20405511 DOI: 10.1002/pbc.22460] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
BACKGROUND The combination of irinotecan, temozolomide, and vincristine is appealing because of potentially synergistic mechanisms of action and non-overlapping toxicities. This phase I study was designed to determine the toxicity and maximum tolerated dose (MTD) of escalating daily protracted doses of irinotecan given in this combination. With extended accrual, we more fully explored the toxicity of multiple courses at the MTD. PROCEDURE Patients under 22 years with recurrent or refractory solid tumors were eligible. A course of chemotherapy was given every 28 days. Cefpodoxime was given for diarrhea prophylaxis. Vincristine (1.5 mg/m2, max 2 mg) was given intravenously (IV) on days 1 and 8. Temozolomide (100 mg/m2/day) was given orally on days 1-5. Irinotecan was given IV over 1 hr on days 1-5 and 8-12. Dose escalation was done in the standard 3 + 3 cohort design, starting at 15 mg/m2/day. RESULTS Twenty-five of 26 eligible patients were evaluable for toxicity and response. They received 111 courses (1-13, median 4). Dose limiting toxicity (DLT-pancreatitis, transaminitis) was seen in two of three patients at dose level 2 (20 mg/m2). No patients at level 1 had DLT during the first two cycles. Thus, the MTD of irinotecan in this combination is 15 mg/m2/day x 10 doses. Hematologic toxicity was mild and not prolonged. Grade 3 diarrhea was seen in five courses. Responses included two complete and two partial with 12 stable disease (SD) (median 6 months). CONCLUSIONS This combination is safe and shows activity in pediatric patients with recurrent malignancy.
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Affiliation(s)
- René Y McNall-Knapp
- Jimmy Everest Section of Pediatric Hematology/Oncology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma 73104, USA.
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Zwaan CM, Kearns P, Caron H, Verschuur A, Riccardi R, Boos J, Doz F, Geoerger B, Morland B, Vassal G. The role of the ‘innovative therapies for children with cancer’ (ITCC) European consortium. Cancer Treat Rev 2010; 36:328-34. [DOI: 10.1016/j.ctrv.2010.02.008] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Abstract
Neuroblastoma, the most common extracranial pediatric solid tumor remains a clinical enigma with outcomes ranging from cure in >90% of patients with locoregional tumors with little to no cytotoxic therapy, to <30% for those >18months of age at diagnosis with metastatic disease despite aggressive multimodality therapy. Age, stage and amplification of the MYCN oncogene are the most validated prognostic markers. Recent research has shed light on the biology of neuroblastoma allowing more accurate stratification of patients which has permitted reducing or withholding cytotoxic therapy without affecting outcome for low-risk patients. However, for children with high-risk disease, the development of newer therapeutic strategies is necessary. Current surgery and radiotherapy techniques in conjunction with induction chemotherapy have greatly reduced the risk of local relapse. However, refractory or recurrent osteomedullary disease occurs in most patients with high-risk neuroblastoma. Toxicity limits for high-dose chemotherapy appear to have been reached without further clinical benefit. Neuroblastoma is the first pediatric cancer for which monoclonal-antibody-based immunotherapy has been shown to be effective, particularly for metastatic osteomedullary disease. Radioimmunotherapy appears to be a critical component of a recent, successful regimen for treating patients who relapse in the central nervous system, a possible sanctuary site. Efforts are under way to refine and enhance antibody-based immunotherapy and to determine its optimal use. The identification of newer tumor targets and the harnessing of cell-mediated immunotherapy may generate novel therapeutic approaches. It is likely that a combination of therapeutic modalities will be required to improve survival and cure rates.
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Kaneko M, Kaneko S, Suzuki K. Prolonged low-dose administration of the cyclooxygenase-2 inhibitor celecoxib enhances the antitumor activity of irinotecan against neuroblastoma xenografts. Cancer Sci 2009; 100:2193-201. [PMID: 19673886 PMCID: PMC11159859 DOI: 10.1111/j.1349-7006.2009.01280.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2009] [Revised: 06/30/2009] [Accepted: 07/02/2009] [Indexed: 11/30/2022] Open
Abstract
Cyclooxygenase (COX)-2 is overexpressed in many human tumors including neuroblastoma (NB) and promotes tumor progression. We evaluated the antitumor effect of irinotecan (CPT-11) treatment combined with prolonged very low-dose administration of celecoxib, a selective COX-2 inhibitor, against three human NB xenografts, TNB9, TS-N-2nu, and TS-N-5nu. In addition, the effects of the celecoxib-combined treatment were examined on tumor cell proliferation, apoptosis, angiogenesis, and expression of vascular endothelial growth factor and apoptosis-related proteins in xenografts. Celecoxib administered daily at 5 mg/kg body weight/day could not prevent the growth of any of the NB xenografts. However, the combination of daily low-dose CPT-11 (5.9 mg/kg body weight/day) and simultaneous very low-dose celecoxib resulted in highly significant suppression of tumor growth in all three xenografts (P < 0.001) compared not only with low-dose CPT-11 therapy alone but also with the combination therapy of intermittent conventional-dose CPT-11 (59 mg/kg body weight) and celecoxib accompanied by decreased proliferation and increased induction of apoptosis in tumor cells. Induction of apoptosis by CPT-11 with and without celecoxib was associated with the up-regulation of Bax expression and the down-regulation of Bcl-2 expression. The enhanced antitumor effect of the combination of the two drugs against the NB xenografts might be partially COX-2-independent and was probably mediated through multiple factors including diminished expression of VEGF and activation of the caspase-dependent mitochondrial apoptosis pathway. These findings demonstrate that prolonged low-dose CPT-11 treatment combined with very low-dose celecoxib shows promising antitumor activity through the blockage of multiple critical targets related to NB tumor cell survival and proliferation.
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Affiliation(s)
- Michio Kaneko
- Department of Pediatric Surgery, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Japan.
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Pritchard-Jones K. Clinical trials for children with cancer in Europe - still a long way from harmonisation: a report from SIOP Europe. Eur J Cancer 2008; 44:2106-11. [PMID: 18757192 DOI: 10.1016/j.ejca.2008.07.026] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2008] [Accepted: 07/11/2008] [Indexed: 11/25/2022]
Abstract
Clinical trials for children with cancer have been particularly hard hit by the introduction of the EU Clinical Trials Directive in 2004. Largely investigator-led and lacking in commercial sponsorship, they have struggled to find the resources necessary to comply with the complex bureaucracy. These rare diseases require multinational participation to permit appropriately powered clinical trials to be undertaken. Differences in interpretation of the Directive by national regulatory authorities have had a disproportionate effect on trials in children, highlighted by differences in what is deemed an 'investigational medicinal product' when paediatric use of an old drug is outside its licensed indication. Insurance costs have increased a 100-fold with no increase in actual risk between consecutive trials from the same study group. Issues raised at the recent conference held to reappraise the operation of the Directive are summarised to emphasise the particular issues for trials in children with cancer.
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Affiliation(s)
- K Pritchard-Jones
- The Institute of Cancer Research and The Royal Marsden Hospital, Downs Road, Sutton, Surrey, SM2 5PT, UK.
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