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Jacobsen A, Siebler J, Grützmann R, Stürzl M, Naschberger E. Blood Vessel-Targeted Therapy in Colorectal Cancer: Current Strategies and Future Perspectives. Cancers (Basel) 2024; 16:890. [PMID: 38473252 DOI: 10.3390/cancers16050890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 02/06/2024] [Accepted: 02/10/2024] [Indexed: 03/14/2024] Open
Abstract
The vasculature is a key player and regulatory component in the multicellular microenvironment of solid tumors and, consequently, a therapeutic target. In colorectal carcinoma (CRC), antiangiogenic treatment was approved almost 20 years ago, but there are still no valid predictors of response. In addition, treatment resistance has become a problem. Vascular heterogeneity and plasticity due to species-, organ-, and milieu-dependent phenotypic and functional differences of blood vascular cells reduced the hope of being able to apply a standard approach of antiangiogenic therapy to all patients. In addition, the pathological vasculature in CRC is characterized by heterogeneous perfusion, impaired barrier function, immunosuppressive endothelial cell anergy, and metabolic competition-induced microenvironmental stress. Only recently, angiocrine proteins have been identified that are specifically released from vascular cells and can regulate tumor initiation and progression in an autocrine and paracrine manner. In this review, we summarize the history and current strategies for applying antiangiogenic treatment and discuss the associated challenges and opportunities, including normalizing the tumor vasculature, modulating milieu-dependent vascular heterogeneity, and targeting functions of angiocrine proteins. These new strategies could open perspectives for future vascular-targeted and patient-tailored therapy selection in CRC.
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Affiliation(s)
- Anne Jacobsen
- Division of Molecular and Experimental Surgery, Translational Research Center, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Kussmaulallee 12, D-91054 Erlangen, Germany
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), D-91054 Erlangen, Germany
- Department of General and Visceral Surgery, Universitätsklinikum Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), D-91054 Erlangen, Germany
| | - Jürgen Siebler
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), D-91054 Erlangen, Germany
- Department of Medicine 1-Gastroenterology, Universitätsklinikum Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), D-91054 Erlangen, Germany
| | - Robert Grützmann
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), D-91054 Erlangen, Germany
- Department of General and Visceral Surgery, Universitätsklinikum Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), D-91054 Erlangen, Germany
| | - Michael Stürzl
- Division of Molecular and Experimental Surgery, Translational Research Center, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Kussmaulallee 12, D-91054 Erlangen, Germany
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), D-91054 Erlangen, Germany
| | - Elisabeth Naschberger
- Division of Molecular and Experimental Surgery, Translational Research Center, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Kussmaulallee 12, D-91054 Erlangen, Germany
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), D-91054 Erlangen, Germany
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Amonkar MM, Abderhalden LA, Frederickson AM, Aksomaityte A, Lang BM, Leconte P, Zhang I. Clinical outcomes of chemotherapy-based therapies for previously treated advanced colorectal cancer: a systematic literature review and meta-analysis. Int J Colorectal Dis 2023; 38:10. [PMID: 36630020 DOI: 10.1007/s00384-022-04301-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/28/2022] [Indexed: 01/12/2023]
Abstract
PURPOSE The purpose of this study was to evaluate clinical outcomes of standard therapies in previously treated, advanced colorectal cancer (CRC) patients. METHODS A systematic literature review was conducted in Embase, MEDLINE, and CENTRAL databases (January 2000-July 2021), annual oncology conferences (2019-2021), and clinicaltrials.gov to identify studies evaluating the use of licensed interventions in second-line or later settings. The primary outcome of interest was objective response rate (ORR) and secondary outcomes included progression-free survival (PFS) and overall survival (OS). ORR was pooled using the Freeman-Tukey double arcsine transformation. For survival outcomes, published Kaplan-Meier curves for OS and PFS were digitized to re-construct individual patient-level data and pooled following the methodology described by Combescure et al. (2014). RESULTS Twenty-three trials evaluating standard chemotherapies with or without targeted therapies across 4,791 advanced CRC patients contributed to our meta-analysis. In the second-line setting, the random effects pooled estimate of ORR was 22.4% (95% confidence interval (CI): 18.0, 27.1), median PFS was 7.0 months (95% CI: 6.4, 7.4), and median OS was 14.9 months (95% CI: 13.6, 16.1). In the third-line or later setting, the random effects pooled estimate of ORR was 1.7% (95% CI: 0.8, 2.7), median PFS was 2.3 months (95% CI: 2.0, 2.8), and median OS was 8.2 months (95% CI: 7.1, 9.1). CONCLUSION Standard treatments have limited efficacy in the second-line or later setting with worsening outcomes in later lines. Given the global burden of CRC, further research into novel and emerging therapeutic options following treatment failure is needed.
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Tran KB, Kolekar S, Wang Q, Shih JH, Buchanan CM, Deva S, Shepherd PR. Response to BRAF-targeted Therapy Is Enhanced by Cotargeting VEGFRs or WNT/β-Catenin Signaling in BRAF-mutant Colorectal Cancer Models. Mol Cancer Ther 2022; 21:1777-1787. [PMID: 36198029 PMCID: PMC9716247 DOI: 10.1158/1535-7163.mct-21-0941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2021] [Revised: 07/20/2022] [Accepted: 09/30/2022] [Indexed: 01/12/2023]
Abstract
The fact that 10% of colorectal cancer tumors harbor BRAF V600E mutations suggested targeting BRAF as a potential therapy. However, BRAF inhibitors have only limited single-agent efficacy in this context. The potential for combination therapy has been shown by the BEACON trial where targeting the EGF receptor with cetuximab greatly increased efficacy of BRAF inhibitors in BRAF-mutant colorectal cancer. Therefore, we explored whether efficacy of the mutant BRAF inhibitor vemurafenib could be enhanced by cotargeting of either oncogenic WNT/β-catenin signaling or VEGFR signaling. We find the WNT/β-catenin inhibitors pyrvinium, ICG-001 and PKF118-310 attenuate growth of colorectal cancer cell lines in vitro with BRAF-mutant lines being relatively more sensitive. Pyrvinium combined with vemurafenib additively or synergistically attenuated growth of colorectal cancer cell lines in vitro. The selective and potent VEGFR inhibitor axitinib was most effective against BRAF-mutant colorectal cancer cell lines in vitro, but the addition of vemurafenib did not significantly increase these effects. When tested in vivo in animal tumor models, both pyrvinium and axitinib were able to significantly increase the ability of vemurafenib to attenuate tumor growth in xenografts of BRAF-mutant colorectal cancer cells. The magnitude of these effects was comparable with that induced by a combination of vemurafenib and cetuximab. This was associated with additive effects on release from tumor cells and tumor microenvironment cell types of substances that would normally aid tumor progression. Taken together, these preclinical data indicate that the efficacy of BRAF inhibitor therapy in colorectal cancer could be increased by cotargeting either WNT/β-catenin or VEGFRs with small-molecule inhibitors.
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Affiliation(s)
- Khanh B. Tran
- Department of Molecular Medicine. University of Auckland, Auckland, New Zealand.,Maurice Wilkins Centre, Auckland, New Zealand
| | - Sharada Kolekar
- Auckland Cancer Society Research Center, University of Auckland, New Zealand
| | - Qian Wang
- Department of Molecular Medicine. University of Auckland, Auckland, New Zealand
| | - Jen-Hsing Shih
- Department of Molecular Medicine. University of Auckland, Auckland, New Zealand
| | - Christina M. Buchanan
- Department of Molecular Medicine. University of Auckland, Auckland, New Zealand.,Maurice Wilkins Centre, Auckland, New Zealand
| | - Sanjeev Deva
- Cancer Clinical Trials Unit, Auckland District Health Board, Auckland, New Zealand
| | - Peter R. Shepherd
- Department of Molecular Medicine. University of Auckland, Auckland, New Zealand.,Maurice Wilkins Centre, Auckland, New Zealand.,Auckland Cancer Society Research Center, University of Auckland, New Zealand.,Corresponding Author: Peter R. Shepherd, University of Auckland, Private Bag 92019, Auckland 1023, New Zealand. Phone: 649-373-7999; E-mail:
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A Quassinoid Diterpenoid Eurycomanone from Eurycoma longifolia Jack Exerts Anti-Cancer Effect through Autophagy Inhibition. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27144398. [PMID: 35889271 PMCID: PMC9324291 DOI: 10.3390/molecules27144398] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 06/20/2022] [Accepted: 07/04/2022] [Indexed: 12/24/2022]
Abstract
Eurycomanone (EN) is one of the representative quassinoid diterpenoids from roots of Eurycoma longifolia Jack, a natural medicine that is widely distributed in Southeast Asia. Previous studies showed that EN induces cancer cell apoptosis and exhibits anti-cancer activity, but the molecular mechanism of EN against cancer has still not been elucidated. In this study, we examined the regulatory effect of EN on autophagy to reveal the mechanism of EN-mediated colon cancer growth inhibition. First, we found that EN is able to inhibit colon cancer cell proliferation and colony formation. The angiogenesis level in cancer cells was inhibited as well. Next, the treatment of EN led to the suppression of autophagy, which was characterized by the downregulation of the LC3-II level and the formation of GFP-LC3 puncta under EN treatment in colon cancer. Moreover, we revealed that the mTOR signaling pathway was activated by EN in a time- and concentration-dependent manner. Finally, autophagy induction protected colon cancer cells from EN treatment, suggesting that autophagy improves cell survival. Taken together, our findings revealed the mechanism of EN against colon cancer through inhibiting autophagy and angiogenesis in colon cancer, supporting that the autophagy inhibitor EN could be developed to be a novel anti-cancer agent.
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Angiogenesis Inhibitors for Colorectal Cancer. A Review of the Clinical Data. Cancers (Basel) 2021; 13:cancers13051031. [PMID: 33804554 PMCID: PMC7957514 DOI: 10.3390/cancers13051031] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Accepted: 02/21/2021] [Indexed: 12/24/2022] Open
Abstract
Since the late 1990s, therapy for metastatic colorectal cancer (mCRC) has changed considerably, and the combination of doublet or triplet chemotherapy and a targeted agent are now routinely used. The targeting of angiogenesis, the development of new blood vessels, represents a key element in the overall treatment strategy. Since the approval in 2004 of the first anti-angiogenetic drug, multiple agents have been approved and others are currently under investigation. We present an overview of the recent literature on approved systemic treatment of mCRC, with a focus on anti-angiogenic drugs, and current treatment approaches, and elaborate on the future role of angiogenesis in colorectal cancer as seen from a clinical perspective. The treatment of mCRC, in general, has changed from "one strategy fits all" to a more personalized approach. This is, however, not entirely the case for anti-angiogenetic treatments, partly due to a lack of validated biomarkers. The anti-angiogenetic standard treatment at the present primarily includes monoclonal antibodies. The therapeutic field of angiogenesis, however, has received increased interest after the introduction of newer combinations. These approaches will likely change the current treatment strategy, once again, to the overall benefit of patients.
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Fan Q, Lv W, Xu Y, Dong Y, Xiang Z, Wang J. Selective Vascular Endothelial Growth Factor Receptor Inhibitors Provide Limited Benefits for Metastatic Colorectal Cancer: A Meta-Analysis. Curr Pharm Des 2020; 26:3171-3186. [PMID: 32067605 DOI: 10.2174/1381612826666200218095932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Accepted: 01/24/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Metastatic colorectal cancer (mCRC) is one of the most common and deadly cancers worldwide. For most patients diagnosed with mCRC and managed with 5-fluorouracil (5-FU)/leucovorin plus oxaliplatin (FOLFOX), the median survival time is still less than 2 years. Small molecule selective vascular endothelial growth factor receptor (VEGFR) inhibitors have been demonstrated to have strong anti-tumour activity in various cancer models. OBJECTIVE To demonstrate the efficacy and safety of selective VEGFR inhibitors in the management of mCRC. METHODS A comprehensive search in PubMed, EMBASE, Web of Science, Ovid MEDLINE, Google Scholar, Springer and Cochrane Central databases was performed for randomized controlled trials (RCTs) focusing on the effect of selective VEGFR inhibitors on mCRC. The primary outcome measures were progression-free survival (PFS) rates, overall survival (OS) rates, complete response (CR), partial response (PR), stable disease (SD), progressive disease (PD), objective response rates (ORRs), disease control rates (DCRs) and adverse effect (AE) rates. The dates of the included studies ranged from the inception of the database to January 15, 2020. RESULTS Twenty-two RCTs were included. A total of 9362 patients met the inclusion criteria. Compared with placebo, selective VEGFR inhibitors significantly increased the PFS rate, SD, PR and DCR, reduced PD, caused more treatment-emergent adverse events (TEAEs), hypertension, hand-foot skin reaction, diarrhoea, fatigue, and thrombocytopaenia and increased aspartate aminotransferase(AST) concentration. There was no significant difference between selective VEGFR inhibitors and placebo regarding OS rate, CR, ORR, proteinuria, hyperbilirubinaemia or alkaline phosphatase(ALP) concentration. Additionally, compared with FOLFOX4+placebo, FOLFOX4+ selective VEGFR inhibitors, clearly reduced PD, and caused more 3-4 AEs, serious AEs, hypertension, hand-foot syndrome, diarrhoea, nausea, vomiting, decreased appetite, dehydration, fatigue, dizziness, neutropaenia and thrombocytopaenia. For PFS rate, OS rate, CR, PR, SD, ORR, abdominal pain, peripheral sensory neuropathy, asthaenia, anaemia and hypokalaemia rates, there was no significant difference between FOLFOX4+ selective VEGFR inhibitors and FOLFOX4+placebo. However, compared with FOLFOX4+bevacizumab, FOLFOX4+selective VEGFR inhibitors, led to increased hypertension, neutropaenia, fatigue, thrombocytopaenia and asthaenia. There is no clear difference between FOLFOX4+selective VEGFR inhibitors and FOLFOX4+ bevacizumab with regard to PFS rate, OS rate, CR, PR, SD, PD, ORR, diarrhoea, nausea, vomiting, peripheral neuropathy and abdominal pain rates. Selective VEGFR inhibitors+cetuximab increased PFS and PR and reduced PD compared to cetuximab, but there was no statistical difference between the two groups for OS and SD. CONCLUSION Compared with placebo or cetuximab, selective VEGFR inhibitors alone or combined with cetuximab seemed to be more efficacious for mCRC respectively; however, the effects were not better than FOLFOX4 alone or when combined with bevacizumab for mCRC. Additionally, selective VEGFR inhibitors were not as safe as placebo or FOLFOX4 alone or in combination with bevacizumab in mCRC.
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Affiliation(s)
- Qin Fan
- Shanxi Dayi Hospital, Taiyuan, China
| | - Wenhao Lv
- Changzhi Medical College, Shanxi, China
| | - Yuexin Xu
- Changzhi Medical College, Shanxi, China
| | - Yuan Dong
- Changzhi Medical College, Shanxi, China
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Ba-Sang DZ, Long ZW, Teng H, Zhao XP, Qiu J, Li MS. A network meta-analysis on the efficacy of sixteen targeted drugs in combination with chemotherapy for treatment of advanced/metastatic colorectal cancer. Oncotarget 2018; 7:84468-84479. [PMID: 27806321 PMCID: PMC5356673 DOI: 10.18632/oncotarget.12994] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Accepted: 10/02/2016] [Indexed: 12/22/2022] Open
Abstract
OBJECTIVE A network meta-analysis was conducted comparing the short-term efficacies of 16 targeted drugs in combination with chemotherapy for treatment of advanced/metastatic colorectal cancer (CRC). RESULTS Twenty-seven RCTs were ultimately incorporated into this network meta-analysis. Compared with chemotherapy alone, bevacizumab + chemotherapy, panitumumab + chemotherapy and conatumumab + chemotherapy had higher PR rate. Bevacizumab + chemotherapy, cetuximab + chemotherapy, panitumumab + chemotherapy, trebananib + chemotherapy and conatumumab + chemotherapy had higher ORR rate in comparison to chemotherapy alone. Furthermore, bevacizumab + chemotherapy had higher DCR rate than chemotherapy alone. The results of our cluster analysis showed that chemotherapy combined with bevacizumab, cetuximab, panitumumab, conatumumab, ganitumab, or brivanib + cetuximab had better efficacies for the treatment of advanced/metastatic CRC in comparison to chemotherapy alone. MATERIALS AND METHODS Electronic databases were comprehensively searched for potential and related randomized controlled trials (RCTs). Direct and indirect evidence were incorporated for evaluation of stable disease (SD), progressive disease (PD), complete response (CR), partial response (PR), disease control rate (DCR) and overall response ratio (ORR) by calculating odds ratio (OR) and 95% confidence intervals (CI), and using the surface under the cumulative ranking curve (SUCRA). CONCLUSIONS These results indicated that bevacizumab + chemotherapy, panitumumab + chemotherapy, conatumumab + chemotherapy and brivanib + cetuximab + chemotherapy may have better efficacies for the treatment of advanced/metastatic CRC.
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Affiliation(s)
- Dan-Zeng Ba-Sang
- Department of Oncology, Shigatse People's Hospital, Shigatse 857000, Tibet, P. R. China
| | - Zi-Wen Long
- Department of Gastric Cancer and Soft-Tissue Sarcoma Surgery, Fudan university Shanghai Cancer Center, Shanghai 200032, P. R. China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, P. R. China
| | - Hao Teng
- Department of Oncology, Shigatse People's Hospital, Shigatse 857000, Tibet, P. R. China
| | - Xu-Peng Zhao
- Department of Oncology, Shigatse People's Hospital, Shigatse 857000, Tibet, P. R. China
| | - Jian Qiu
- Department of Oncology, Shigatse People's Hospital, Shigatse 857000, Tibet, P. R. China
| | - Ming-Shan Li
- Department of Oncology, Shigatse People's Hospital, Shigatse 857000, Tibet, P. R. China
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Grávalos C, Carrato A, Tobeña M, Rodriguez-Garrote M, Soler G, Vieitez JM, Robles L, Valladares-Ayerbes M, Polo E, Limón ML, Safont MJ, Martínez de Castro E, García-Alfonso P, Aranda E. A Randomized Phase II Study of Axitinib as Maintenance Therapy After First-line Treatment for Metastatic Colorectal Cancer. Clin Colorectal Cancer 2018; 17:e323-e329. [PMID: 29551560 DOI: 10.1016/j.clcc.2018.02.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Accepted: 02/12/2018] [Indexed: 12/16/2022]
Abstract
INTRODUCTION The aim of this study was to evaluate the efficacy and safety of maintenance therapy with axitinib versus placebo following induction therapy in patients with metastatic colorectal cancer (mCRC). PATIENTS AND METHODS In this double-blinded, phase II trial, patients with mCRC who had not progressed after 6 to 8 months of first-line chemotherapy were randomized to receive axitinib (5 mg twice a day) (arm A) or placebo (arm B). RESULTS Forty-nine patients were included: 25 in arm A and 24 in arm B. The median follow-up was 26.07 months (95% confidence interval [CI], 18.44-31.73 months). Progression-free survival (PFS) rate at 6 months was 40.00% (95% CI, 21.28%-58.12%) in the axitinib arm versus 8.33% (95% CI, 1.44%-23.30%) in the placebo arm (P = .0141). The median PFS was statistically significantly longer in the axitinib group than in the placebo group (4.96 vs. 3.16 months; hazard ratio, 0.46; 95% CI, 0.25-0.86; P = .0116). Median overall survival was also longer in the axitinib arm but did not reach statistical significance (27.61 vs. 19.99 months; hazard ratio, 0.68; 95% CI, 0.31-1.48; P = .3279). Grade 3 to 4 treatment-related toxicities were experienced by 7 patients (28%) in cohort A and 1 patient (4%) in cohort B (P = .0488). The most frequent grade 3 to 4 treatment-related toxicities were hypertension, diarrhea, and asthenia. There were no toxic deaths. The study was prematurely closed because of slow recruitment. CONCLUSIONS In our study, maintenance treatment with axitinib monotherapy showed a significant increase in PFS and a good safety profile. Axitinib should be further explored as a possible option for first-line chemotherapy maintenance treatment in patients with mCRC.
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Affiliation(s)
- Cristina Grávalos
- Department of Medical Oncology, University Hospital 12 De Octubre, Madrid, Spain.
| | - Alfredo Carrato
- Department of Medical Oncology, Ramon y Cajal University Hospital, IRYCIS CIBERONC, Madrid, Spain
| | - María Tobeña
- Department of Medical Oncology, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | | | - Gemma Soler
- Department of Medical Oncology, ICO Hospital Duran i Reynals, Hospitalet, Spain
| | - José Mª Vieitez
- Department of Medical Oncology, Hospital Universitario Central de Asturias, Oviedo, Spain
| | - Luis Robles
- Department of Medical Oncology, University Hospital 12 De Octubre, Madrid, Spain
| | | | - Eduardo Polo
- Department of Medical Oncology, Hospital Miguel Servet, Zaragoza, Spain
| | - Mª Luisa Limón
- Department of Medical Oncology, Hospital Universitario Virgen del Rocio, Sevilla, Spain
| | - Mª José Safont
- Department of Medical Oncology, Hospital General Universitario Valencia, Valencia, Spain
| | - Eva Martínez de Castro
- Department of Medical Oncology, Hospital Universitario Marqués de Valdecilla, Santander, Spain
| | - Pilar García-Alfonso
- Department of Medical Oncology, Hospital General Universitario Gregorio Marañon, Madrid, Spain
| | - Enrique Aranda
- Department of Medical Oncology, IMIBIC. University Hospital Reina Sofia, CIBERONC Instituto de Salud Carlos III, Cordoba, Spain
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Risk of gastrointestinal events with newly approved (after 2011) vascular endothelial growth factor receptor tyrosine kinase inhibitors in cancer patients: a meta-analysis of randomized controlled trials. Eur J Clin Pharmacol 2017; 73:1209-1217. [PMID: 28710508 DOI: 10.1007/s00228-017-2299-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2017] [Accepted: 07/03/2017] [Indexed: 01/02/2023]
Abstract
PURPOSE We performed a meta-analysis to systematically review the gastrointestinal (GI) events (diarrhea, nausea, vomiting, anorexia) of five newly approved (after 2011) VEGFR-TKIs in cancer patients. METHODS The relevant studies of the randomized controlled trials (RCTs) in cancer patients treated with cabozantinib, vandetanib, lenvatinib, regorafenib, and axitinib were retrieved and the systematic evaluation was conducted. RESULTS Forty-one randomized controlled trials and 10,860 patients were included. Current analysis suggested that the use of these agents increased the risk of all-grade and high-grade GI events, and the diarrhea was the most common GI events. The risk of all-grade and high-grade GI events varies significantly within drug types, tumor types, and VEGFR-TKIs-based regimens. CONCLUSION The available data suggested that the use of the five newly approved VEGFR-TKIs may increase risk of GI events in cancer patients. Physicians and patients should be aware of these risks and frequent monitoring and careful management should be emphasized when managing these VEGFR-TKIs.
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Cremolini C, Antoniotti C, Pietrantonio F, Berenato R, Tampellini M, Baratelli C, Salvatore L, Marmorino F, Borelli B, Nichetti F, Bironzo P, Sonetto C, Bartolomeo MD, de Braud F, Loupakis F, Falcone A, Maio MD. Surrogate Endpoints in Second-Line Trials of Targeted Agents in Metastatic Colorectal Cancer: A Literature-Based Systematic Review and Meta-Analysis. Cancer Res Treat 2017; 49:834-845. [PMID: 27857020 PMCID: PMC5512363 DOI: 10.4143/crt.2016.249] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2016] [Accepted: 10/18/2016] [Indexed: 02/07/2023] Open
Abstract
PURPOSE The purpose of this study was to evaluate progression-free survival (PFS) and objective response rate (ORR) as surrogate endpoints of overall survival (OS) in modern clinical trials investigating the efficacy of targeted agents in the second-line treatment of metastatic colorectal cancer (mCRC). MATERIALS AND METHODS A systematic search of literature pertaining to randomized phase II and III trials evaluating targeted agents as second-line treatments for mCRC was performed. The strength of the correlation between both PFS and ORR and OS was assessed based on the Pearson's correlation coefficient (R) and the coefficient of determination (R2). RESULTS Twenty trials, including a total of 7,571 patients, met the search criteria. The median duration of post-progression survival (PPS) was 7.6 months. The median differences between experimental and control arms were 0.65 months (range, -2.4 to 3.4) for the median PFS and 0.7 months (range, -5.8 to 3.9) for the median OS. PFS and ORR showed moderate (R=0.734, R2=0.539, p < 0.001) and poor correlation (R=0.169, R2=0.029, p=0.476) with OS, respectively. No differences between anti-angiogenic agents and other drugs were evident. CONCLUSION Targeted agents investigated in the second-line treatment of mCRC provided minimal PFS gains translating into modest OS improvements. Considering both the moderate correlation between PFS and OS and the short duration of PPS, the OS should remain the preferred primary endpoint for randomized clinical trials in the second-line treatment of mCRC.
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Affiliation(s)
- Chiara Cremolini
- Unit of Medical Oncology, Azienda Ospedaliero-Universitaria Pisana, Department of Translational Research and New Technologies in Medicine, University of Pisa, Pisa, Italy
| | - Carlotta Antoniotti
- Unit of Medical Oncology, Azienda Ospedaliero-Universitaria Pisana, Department of Translational Research and New Technologies in Medicine, University of Pisa, Pisa, Italy
| | - Filippo Pietrantonio
- Medical Oncology Department, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Rosa Berenato
- Medical Oncology Department, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Marco Tampellini
- Department of Oncology, University of Turin, A.O.U. San Luigi Gonzaga, Turin, Italy
| | - Chiara Baratelli
- Department of Oncology, University of Turin, A.O.U. San Luigi Gonzaga, Turin, Italy
| | - Lisa Salvatore
- Unit of Medical Oncology, Azienda Ospedaliero-Universitaria Pisana, Department of Translational Research and New Technologies in Medicine, University of Pisa, Pisa, Italy
| | - Federica Marmorino
- Unit of Medical Oncology, Azienda Ospedaliero-Universitaria Pisana, Department of Translational Research and New Technologies in Medicine, University of Pisa, Pisa, Italy
| | - Beatrice Borelli
- Unit of Medical Oncology, Azienda Ospedaliero-Universitaria Pisana, Department of Translational Research and New Technologies in Medicine, University of Pisa, Pisa, Italy
| | - Federico Nichetti
- Medical Oncology Department, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Paolo Bironzo
- Department of Oncology, University of Turin, A.O.U. San Luigi Gonzaga, Turin, Italy
| | - Cristina Sonetto
- Department of Oncology, University of Turin, A.O.U. San Luigi Gonzaga, Turin, Italy
| | - Maria Di Bartolomeo
- Medical Oncology Department, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Filippo de Braud
- Medical Oncology Department, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Fotios Loupakis
- Unit of Medical Oncology, Azienda Ospedaliero-Universitaria Pisana, Department of Translational Research and New Technologies in Medicine, University of Pisa, Pisa, Italy
| | - Alfredo Falcone
- Unit of Medical Oncology, Azienda Ospedaliero-Universitaria Pisana, Department of Translational Research and New Technologies in Medicine, University of Pisa, Pisa, Italy
| | - Massimo Di Maio
- Department of Oncology, University of Turin, A.O. Ordine Mauriziano, Turin, Italy
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Bendell JC, Joseph M, Barnes K, Mainwaring M, Shipley D, Reddy C, Blakely L, Blachly R, Lane CM, Earwood C, Kuzur M. A Phase-2 Trial of Single Agent Axitinib as Maintenance Therapy Following First-Line Treatment With Modified FOLFOX/Bevacizumab in Patients With Metastatic Colorectal Cancer. Cancer Invest 2017; 35:386-392. [PMID: 28426267 DOI: 10.1080/07357907.2017.1310221] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
This phase-2 trial evaluated the efficacy of axitinib as maintenance therapy for patients with metastatic colorectal cancer (mCRC) following first-line treatment with FOLFOX/bevacizumab. Patients with mCRC received mFOLFOX/bevacizumab followed by axitinib maintenance after four cycles. The primary endpoint was progression-free survival (PFS). Seventy patients were enrolled. Common treatment-related toxicities were fatigue, nausea, diarrhea, and peripheral neuropathy during FOLFOX/bevacizumab treatment; and fatigue, hypertension, diarrhea, and peripheral neuropathy during axitinib treatment. Median PFS was 8.3 months. Treatment with FOLFOX/bevacizumab followed by maintenance axitinib as first-line treatment for mCRC produced a median PFS consistent with historical controls of other first-line regimens.
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Affiliation(s)
- Johanna C Bendell
- a Sarah Cannon Research Institute , Nashville , Tennessee , USA.,b Tennessee Oncology PLLC , Nashville , Tennessee , USA
| | - Mathew Joseph
- a Sarah Cannon Research Institute , Nashville , Tennessee , USA.,b Tennessee Oncology PLLC , Nashville , Tennessee , USA
| | - Kirk Barnes
- a Sarah Cannon Research Institute , Nashville , Tennessee , USA.,b Tennessee Oncology PLLC , Nashville , Tennessee , USA
| | - Mark Mainwaring
- a Sarah Cannon Research Institute , Nashville , Tennessee , USA.,b Tennessee Oncology PLLC , Nashville , Tennessee , USA
| | - Dianna Shipley
- a Sarah Cannon Research Institute , Nashville , Tennessee , USA.,b Tennessee Oncology PLLC , Nashville , Tennessee , USA
| | | | - Laura Blakely
- a Sarah Cannon Research Institute , Nashville , Tennessee , USA.,b Tennessee Oncology PLLC , Nashville , Tennessee , USA
| | | | - Cassie M Lane
- a Sarah Cannon Research Institute , Nashville , Tennessee , USA
| | - Chris Earwood
- a Sarah Cannon Research Institute , Nashville , Tennessee , USA
| | - Michel Kuzur
- a Sarah Cannon Research Institute , Nashville , Tennessee , USA.,b Tennessee Oncology PLLC , Nashville , Tennessee , USA
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12
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Chebib R, Verlingue L, Cozic N, Faron M, Burtin P, Boige V, Hollebecque A, Malka D. Angiogenesis inhibition in the second-line treatment of metastatic colorectal cancer: A systematic review and pooled analysis. Semin Oncol 2017; 44:114-128. [PMID: 28923209 DOI: 10.1053/j.seminoncol.2017.07.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Revised: 04/18/2017] [Accepted: 07/31/2017] [Indexed: 12/26/2022]
Abstract
The last two decades have seen intensive efforts devoted to the development of compounds that target angiogenesis for the treatment of metastatic colorectal cancer (mCRC). In this review, we describe supporting evidence and ongoing development of angiogenesis inhibitors in the second-line treatment of mCRC, and summarize relevant randomized trials to help therapeutic decision-making in daily practice.
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Affiliation(s)
- Ralph Chebib
- Département de Médecine Oncologique, Gustave Roussy, Université Paris-Saclay, Paris, France
| | - Loic Verlingue
- Département de Médecine Oncologique, Gustave Roussy, Université Paris-Saclay, Paris, France
| | - Nathalie Cozic
- Service de Biostatistique et d'Epidémiologie, Gustave Roussy, Université Paris-Saclay, Paris, France; INSERM U1018, CESP, Gustave Roussy, Université Paris-Saclay, Paris, France; Ligue Nationale Contre le Cancer Meta-Analysis Platform, Gustave Roussy, Université Paris-Saclay, Paris France
| | - Matthieu Faron
- Service de Biostatistique et d'Epidémiologie, Gustave Roussy, Université Paris-Saclay, Paris, France; INSERM U1018, CESP, Gustave Roussy, Université Paris-Saclay, Paris, France; Département de Chirurgie Digestive, Gustave Roussy, Université Paris-Saclay, Paris, France
| | - Pascal Burtin
- Département de Médecine Oncologique, Gustave Roussy, Université Paris-Saclay, Paris, France
| | - Valérie Boige
- Département de Médecine Oncologique, Gustave Roussy, Université Paris-Saclay, Paris, France
| | - Antoine Hollebecque
- Département de Médecine Oncologique, Gustave Roussy, Université Paris-Saclay, Paris, France; Département d'Innovation Thérapeutique et d'Essais Précoces (DITEP), Villejuif, France
| | - David Malka
- Département de Médecine Oncologique, Gustave Roussy, Université Paris-Saclay, Paris, France.
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Riechelmann R, Grothey A. Antiangiogenic therapy for refractory colorectal cancer: current options and future strategies. Ther Adv Med Oncol 2017; 9:106-126. [PMID: 28203302 PMCID: PMC5298403 DOI: 10.1177/1758834016676703] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Even though significant improvements in the treatment of colorectal cancer (CRC) have been made in recent years, survival rates for metastatic colorectal cancer (mCRC) are poor. Effective treatment options for metastatic colorectal cancer remain limited, and new therapeutic strategies are desperately needed. Several tyrosine kinase inhibitors (TKIs) and monoclonal antibodies (mAbs) that target angiogenesis, a critical process for facilitating tumor cell growth, invasion, and metastasis, are either approved or in clinical development for the treatment of mCRC. Many of these agents have shown efficacy in mCRC, both as single agents and in combination with standard chemotherapy regimens. However, there is a need for predictive markers of response to identify those patients most likely to benefit from antiangiogenic therapy, and, to date, no markers of this type have been validated in patients. Additionally, because antiangiogenic agents typically cause cytostatic as opposed to cytotoxic antitumor effects, it is important to determine the best strategies for evaluating therapeutic response in mCRC to ensure maximum clinical benefit. In this review, we summarize the efficacy and tolerability of approved and investigational antiangiogenic agents for the treatment of mCRC. We also discuss potential markers of response to antiangiogenic agents and how these markers, along with appropriate endpoint selection, can improve clinical trial design.
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Affiliation(s)
- Rachel Riechelmann
- Instituto do Cancer do Estado de São Paulo, Av. Doutor Arnaldo 251, 5° Andar, CEP 01246-000, São Paulo, SP, Brazil
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Mocellin S, Baretta Z, Roqué i Figuls M, Solà I, Martin‐Richard M, Hallum S, Bonfill Cosp X. Second-line systemic therapy for metastatic colorectal cancer. Cochrane Database Syst Rev 2017; 1:CD006875. [PMID: 28128439 PMCID: PMC6464923 DOI: 10.1002/14651858.cd006875.pub3] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
BACKGROUND The therapeutic management of people with metastatic colorectal cancer (CRC) who did not respond to first-line treatment represents a formidable challenge. OBJECTIVES To determine the efficacy and toxicity of second-line systemic therapy in people with metastatic CRC. SEARCH METHODS We searched the Cochrane Central Register of Controlled Trials (CENTRAL) (the Cochrane Library 2016, Issue 4), Ovid MEDLINE (1950 to May 2016), Ovid MEDLINE In-process & Other Non-Indexed Citations (1946 to May 2016) and Ovid Embase (1974 to May 2016). There were no language or date of publication restrictions. SELECTION CRITERIA Randomized controlled trials (RCTs) assessing the efficacy (survival, tumour response) and toxicity (incidence of severe adverse effects (SAEs)) of second-line systemic therapy (single or combined treatment with any anticancer drug, at any dose and number of cycles) in people with metastatic CRC that progressed, recurred or did not respond to first-line systemic therapy. DATA COLLECTION AND ANALYSIS Authors performed a descriptive analysis of each included RCT in terms of primary (survival) and secondary (tumour response, toxicity) endpoints. In the light of the variety of drug regimens tested in the included trials, we could carry out meta-analysis considering classes of (rather than single) anticancer regimens; to this aim, we applied the random-effects model to pool the data. We used hazard ratios (HRs) and risk ratios (RRs) to describe the strength of the association for survival (overall (OS) and progression-free survival (PFS)) and dichotomous (overall response rate (ORR) and SAE rate) data, respectively, with 95% confidence intervals (CI). MAIN RESULTS Thirty-four RCTs (enrolling 13,787 participants) fulfilled the eligibility criteria. Available evidence enabled us to address multiple clinical issues regarding the survival effects of second-line systemic therapy of people with metastatic CRC.1. Chemotherapy (irinotecan) was more effective than best supportive care (HR for OS: 0.58, 95% CI 0.43 to 0.80; 1 RCT; moderate-quality evidence); 2. modern chemotherapy (FOLFOX (5-fluorouracil plus leucovorin plus oxaliplatin), irinotecan) is more effective than outdated chemotherapy (5-fluorouracil) (HR for PFS: 0.59, 95% CI 0.49 to 0.73; 2 RCTs; high-quality evidence) (HR for OS: 0.69, 95% CI 0.51 to 0.94; 1 RCT; moderate-quality evidence); 3. irinotecan-based combinations were more effective than irinotecan alone (HR for PFS: 0.68, 95% CI 0.60 to 0.76; 6 RCTs; moderate-quality evidence); 4. targeted agents improved the efficacy of conventional chemotherapy both when considered together (HR for OS: 0.84, 95% CI 0.77 to 0.91; 6 RCTs; high-quality evidence) and when bevacizumab was used alone (HR for PFS: 0.67, 95% CI 0.60 to 0.75; 4 RCTs; high-quality evidence).With regard to secondary endpoints, tumour response rates generally paralleled the survival results; moreover, higher anticancer efficacy was generally associated with worse treatment-related toxicity, with the important exception of bevacizumab-containing regimens, where the addition of the targeted agent to chemotherapy did not result in a significant increase in the rate of SAE. Finally, we found that oral (instead of intravenous) fluoropyrimidines significantly reduced the incidence of adverse effects (without compromising efficacy) in people treated with oxaliplatin-based regimens.We could not draw any conclusions on other debated aspects in this field of oncology, such as ranking of treatments (not all possible comparisons have been tested and many comparisons were based on single trials enrolling a small number of participants) and quality of life (virtually no data available). AUTHORS' CONCLUSIONS Systemic therapy offers a survival benefit to people with metastatic CRC who did not respond to first-line treatment, especially when targeted agents are combined with conventional chemotherapeutic drugs. Further research is needed to define the optimal regimen and to identify people who most benefit from each treatment.
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Affiliation(s)
- Simone Mocellin
- University of PadovaDepartment of Surgery, Oncology and GastroenterologyVia Giustiniani 2PadovaVenetoItaly35128
- IOV‐IRCCSIstituto Oncologico VenetoPadovaItaly35100
| | - Zora Baretta
- Ospedale di MontecchioU.O.C. di Oncologia ULSS5 Ovest VicentinoMontecchio MaggioreVicenzaItaly
| | - Marta Roqué i Figuls
- CIBER Epidemiología y Salud Pública (CIBERESP)Iberoamerican Cochrane Centre ‐ Biomedical Research Institute Sant Pau (IIB Sant Pau)Sant Antoni Maria Claret 171Edifici Casa de ConvalescènciaBarcelonaCatalunyaSpain08041
| | - Ivan Solà
- CIBER Epidemiología y Salud Pública (CIBERESP) ‐ Universitat Autònoma de BarcelonaIberoamerican Cochrane Centre ‐ Biomedical Research Institute Sant Pau (IIB Sant Pau)Sant Antoni Maria Claret 167Pavilion 18BarcelonaCatalunyaSpain08025
| | - Marta Martin‐Richard
- Hospital de la Santa Creu i Sant PauClinical OncologySant Antoni Maria Claret 167BarcelonaSpain08025
| | - Sara Hallum
- CochraneCochrane Colorectal Cancer Group23 Bispebjerg BakkeCopenhagenDenmarkDK 2400 NV
| | - Xavier Bonfill Cosp
- CIBER Epidemiología y Salud Pública (CIBERESP)Iberoamerican Cochrane Centre ‐ Biomedical Research Institute Sant Pau (IIB Sant Pau)Sant Antoni Maria Claret 171Edifici Casa de ConvalescènciaBarcelonaCatalunyaSpain08041
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Matos I, Elez E, Capdevila J, Tabernero J. Emerging tyrosine kinase inhibitors for the treatment of metastatic colorectal cancer. Expert Opin Emerg Drugs 2016; 21:267-82. [PMID: 27578253 DOI: 10.1080/14728214.2016.1220535] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
INTRODUCTION Colorectal cancer (CRC) is a leading cause of cancer death worldwide. Over the last decade, the addition of antibodies that block the epidermal growth factor receptor (EGFR) or angiogenesis to the classic chemotherapy backbone has improved overall survival in metastatic colorectal cancer (mCRC). However, the role of the other major targeted therapy, the tyrosine kinase inhibitors (TKIs), is not yet fully clarified. AREAS COVERED This review discusses key published and ongoing studies with TKIs in mCRC, the mechanisms of resistance to standard treatments that are potentially targetable with these small molecules, along with the role of biomarkers in therapeutic decision-making process. EXPERT OPINION The current effectiveness of TKIs is limited by two principal reasons, firstly the use of combination chemotherapy necessitates lower dose-density to manage the toxicity profile and secondly, development of these drugs has mainly been performed in molecularly unselected populations. mCRC is a heterogeneous and dynamic disease, and clinical trials with TKIs must be designed on the basis of specific molecular alterations targeted by these drugs. Success with this approach relies on identifying mutations at the time of progression, raising the importance of minimally-invasive monitoring tools. Liquid biopsies are a promising option, although this technique remains to be validated. Overall, this approach contributes to the move towards personalized and precision therapeutic strategies.
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Affiliation(s)
- Ignacio Matos
- a Spain - Medical Oncology Department , Vall d'Hebron University Hospital , Barcelona , Spain
| | - Elena Elez
- a Spain - Medical Oncology Department , Vall d'Hebron University Hospital , Barcelona , Spain
| | - Jaume Capdevila
- a Spain - Medical Oncology Department , Vall d'Hebron University Hospital , Barcelona , Spain
| | - Josep Tabernero
- a Spain - Medical Oncology Department , Vall d'Hebron University Hospital , Barcelona , Spain
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17
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S-1 and irinotecan plus bevacizumab as second-line chemotherapy for patients with oxaliplatin-refractory metastatic colorectal cancer: a multicenter phase II study in Japan (KSCC1102). Int J Clin Oncol 2016; 21:705-712. [DOI: 10.1007/s10147-015-0943-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Accepted: 12/19/2015] [Indexed: 10/22/2022]
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Lee YC, Michael M, Zalcberg JR. An overview of experimental and investigational multikinase inhibitors for the treatment of metastatic colorectal cancer. Expert Opin Investig Drugs 2015. [DOI: 10.1517/13543784.2015.1070483] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Lin Z, Yang Y, Huang Y, Liang J, Lu F, Lao X. Vascular endothelial growth factor receptor tyrosine kinase inhibitors versus bevacizumab in metastatic colorectal cancer: A systematic review and meta-analysis. Mol Clin Oncol 2015; 3:959-967. [PMID: 26171215 DOI: 10.3892/mco.2015.572] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2015] [Accepted: 04/24/2015] [Indexed: 01/23/2023] Open
Abstract
Bevacizumab has demonstrated a survival benefit in patients with metastatic colorectal cancer (mCRC) when combined with chemotherapy. Several randomized clinical trials comparing the efficacy and toxicity of vascular endothelial growth factor receptor (VEGFR) tyrosine kinase inhibitors (TKIs) against bevacizumab have been reported. The present meta-analysis was conducted to identify the potentially significant benefit of the combined treatment regimens in patients with mCRC. PubMed, Embase and Cochrane Library databases were searched for the randomized controlled trials published on or before September 2014, which compared the efficacy and toxicity of VEGFR TKIs with bevacizumab in combination with chemotherapy in patients with mCRC. The primary endpoints included progression-free survival (PFS), overall survival (OS) and overall response rate (ORR), and secondary endpoints were the toxicity profiles. Relative risks (RRs) with 95% confidence intervals (CIs) for response rate and adverse events (AEs) were calculated, as well as hazard ratios (HRs) for PFS and OS. The final analysis included 4 studies comprising a total of 1,929 intent-to-treat patients with mCRC, which compared VEGFR TKIs (cediranib and axitinib) plus chemotherapy with bevacizumab plus chemotherapy. Results demonstrated that VEGFR TKIs plus chemotherapy significantly resulted in a modest but significantly shorter PFS [hazard ratio (HR), 1.12; 95% CI, 1.00-1.25; P=0.05] compared with that of bevacizumab plus chemotherapy but not in OS (HR, 1.10; 95% CI, 0.88-1.17; P=0.87) and ORR (RR, 0.95; 95% CI, 0.85-1.05; P=0.30). VEGFR TKIs treatment showed a less favorable AE profile compared with bevacizumab, with higher rates of grade-III/IV diarrhea, fatigue, hypertension, neutropenia and thrombocytopenia, whereas a higher incidence of peripheral neuropathy associated with the bevacizumab group was observed. In conclusion, the addition of VEGFR TKIs to chemotherapy resulted in a modest but significantly shorter PFS but not in OS and ORR compared with bevacizumab. The VEGFR TKIs group showed a less favorable AE profile with higher rates of diarrhea, fatigue, hypertension, neutropenia and thrombocytopenia, whereas a higher incidence of peripheral neuropathy associated with the bevacizumab was observed.
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Affiliation(s)
- Zexin Lin
- Department of General Surgery, The First Clinical Medicine School of Jinan University, Affiliated Shantou Hospital of Sun Yat-Sen University, Guangzhou, Guangdong, P.R. China
| | - Yilin Yang
- Department of General Surgery, The First Clinical Medicine School of Jinan University, Guangzhou, Guangdong, P.R. China
| | - Yongliang Huang
- Department of General Surgery, The First Clinical Medicine School of Jinan University, Guangzhou, Guangdong, P.R. China
| | - Junjie Liang
- Department of General Surgery, The First Clinical Medicine School of Jinan University, Guangzhou, Guangdong, P.R. China
| | - Fang Lu
- Department of Orthopedics, The First Clinical Medicine School of Jinan University, Guangzhou, Guangdong, P.R. China
| | - Xuejun Lao
- Department of General Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong, P.R. China
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Smith MA. Lessons learned from adult clinical experience to inform evaluations of VEGF pathway inhibitors in children with cancer. Pediatr Blood Cancer 2014; 61:1497-505. [PMID: 24760743 DOI: 10.1002/pbc.25036] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2013] [Accepted: 02/27/2014] [Indexed: 01/07/2023]
Abstract
Agents targeting the vascular endothelial growth factor (VEGF) pathway have been studied in adults with cancer for nearly two decades. It is important to assess the lessons learned from this adult experience and to see how these lessons can help inform pediatric development of agents in this class. The benefit achieved from the use of VEGF pathway targeted agents for adult cancers has primarily been to delay for several months disease progression and less commonly time to death for conditions in which cure is not a reasonable expectation. VEGF pathway targeted agents have shown no efficacy when applied in the adjuvant setting. For adults with advanced cancer, prolongation of survival by 2-3 months is considered an important achievement in some settings. However, the primary goal of pediatric oncology clinical research is to identify treatments that allow children to be cured of their cancer and to grow to adulthood without treatment-induced limitations that lower their quality of survival. An important question for the pediatric oncology research community, pharmaceutical companies, and regulatory agencies to address in planning for future clinical trials is whether existing data support a role for VEGF pathway targeted agents in contributing to a therapeutic pathway to cure for children with cancer.
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Intermittent dosing of axitinib combined with chemotherapy is supported by (18)FLT-PET in gastrointestinal tumours. Br J Cancer 2014; 110:875-81. [PMID: 24423921 PMCID: PMC3929885 DOI: 10.1038/bjc.2013.806] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2013] [Revised: 12/04/2013] [Accepted: 12/04/2013] [Indexed: 01/14/2023] Open
Abstract
Background: We evaluated week-on/week-off axitinib dosing plus chemotherapy in patients with gastrointestinal tumours, including tumour thymidine uptake by fluorine-18 3′-deoxy-3′-fluorothymidine positron emission tomography (18FLT-PET). Methods: During a lead-in period, patients received twice daily (b.i.d.) axitinib 7 mg (n=3) or 10 mg (n=18) for 7 days followed by a 7-day dosing interruption; serial 18FLT-PET scans were performed before day 1 and on days 7, 10, and 14. Axitinib plus FOLFIRI or FOLFOX was then administered in 2-week cycles; axitinib was interrupted on day 10 of each cycle for 7 days. Results: The maximum tolerated dose of axitinib was 10 mg b.i.d., in a week-on/week-off schedule, combined with FOLFIRI or FOLFOX. Common all-causality grade 3 adverse events were neutropenia (38%), hypertension (33%), and fatigue (29%). Of 21 patients, 2 (10%) had a partial response and 12 (57%) had stable disease. Following 7 days of continuous axitinib dosing, tumour 18FLT uptake decreased –49% from baseline and recovered to –28% and –17% from baseline, respectively, after 3 and 7 days of axitinib interruption. Conclusion: Axitinib administered in a week-on/week-off schedule combined with FOLFIRI or FOLFOX is supported by 18FLT-PET data and was well tolerated in patients with gastrointestinal tumours.
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