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Peirce V, Paskow M, Qin L, Dadzie R, Rapoport M, Prince S, Johal S. A Systematised Literature Review of Real-World Treatment Patterns and Outcomes in Unresectable Advanced or Metastatic Biliary Tract Cancer. Target Oncol 2023; 18:837-852. [PMID: 37751011 PMCID: PMC10663194 DOI: 10.1007/s11523-023-01000-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/08/2023] [Indexed: 09/27/2023]
Abstract
BACKGROUND Biliary tract cancers are rare aggressive malignancies typically diagnosed when the disease is metastatic or unresectable, precluding curative treatment. OBJECTIVE We aimed to identify treatment guidelines, real-world treatment patterns, and outcomes for unresectable advanced or metastatic biliary tract cancers in adult patients. METHODS Databases (MEDLINE, Embase, Cochrane Database of Systematic Reviews) were systematically searched between 1 January, 2000 and 25 November, 2021, and supplemented by hand searches. Eligible records were (1) treatment guidelines and (2) observational studies reporting real-world treatment outcomes, for unresectable advanced or metastatic biliary tract cancers. Only studies performed in the UK, Germany, France, Australia, Canada and South Korea were extracted, to moderate the number of records for synthesis while maintaining representation of a wide range of biliary tract cancer incidences. RESULTS A total of 66 relevant unique full-text records were extracted, including 16 treatment guidelines and 50 observational studies. Among guidelines, chemotherapies were most strongly recommended at first line (1L); the combination of gemcitabine and cisplatin (GEMCIS) was recommended as the standard of care in 1L. Recommendations for systemic chemotherapy in the second line (2L) conflicted because of uncertainties around survival benefit. Guidelines on further lines of treatment included a range of locoregional modalities and stenting or best supportive care without providing clear recommendations because of data paucity. Fifty observational studies reporting real-world treatment outcomes were extracted, of which 25 (50%) and 9 (18%) reported outcomes in 1L and 2L, respectively; 22 (44%) reported outcomes for treatments described as 'palliative'. In 1L, outcomes for systemic chemotherapy were most frequently described (23/25 studies), and GEMCIS was the most common systemic chemotherapy used (10/23 studies) in line with guidelines. Median overall survival with 1L systemic chemotherapy was < 12 months in most studies (16/23; range 4.7-22.3 months). Most 2L studies (10/11) described outcomes for systemic chemotherapy, most commonly for fluoropyrimidine-based regimen (5/10 studies). Median overall survival with 2L systemic chemotherapy was < 12 months in 5/10 studies (range 4.9-21.5 months). Median progression-free survival was reported more rarely than median overall survival. Some studies with small sample sizes or specifically selected patient populations (e.g. higher performance status, or patients who had already responded to treatment) achieved higher median overall survival. CONCLUSIONS At the time of this review, treatment options for unresectable advanced or metastatic biliary tract cancers confer poor real-world survival. For over a decade, GEMCIS remained the 1L standard of care, highlighting the lack of therapeutic innovation in this indication and the urgent unmet need for novel treatments with improved outcomes in this aggressive condition. Additional observational studies are needed to further understand the effectiveness of currently available treatments, as well as newly available therapies including the addition of immunotherapy in the evolving treatment landscape.
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Affiliation(s)
- Vivian Peirce
- AstraZeneca, Academy House, 132-136 Hills Road, Cambridge, CB2 8PA, UK.
| | | | - Lei Qin
- AstraZeneca, Gaithersburg, MD, USA
| | | | | | | | - Sukhvinder Johal
- AstraZeneca, Academy House, 132-136 Hills Road, Cambridge, CB2 8PA, UK
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2
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Yoon SM. Novel paradigm in the treatment of hepatocellular carcinoma: Anticipating breakthroughs with particle therapy. Clin Mol Hepatol 2023; 29:977-979. [PMID: 37652077 PMCID: PMC10577346 DOI: 10.3350/cmh.2023.0336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Accepted: 08/30/2023] [Indexed: 09/02/2023] Open
Affiliation(s)
- Sang Min Yoon
- Department of Radiation Oncology, Asan Liver Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
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3
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Lee SU, Kim TH. Current evidence and the potential role of proton beam therapy for hepatocellular carcinoma. Clin Mol Hepatol 2023; 29:958-968. [PMID: 37822213 PMCID: PMC10577334 DOI: 10.3350/cmh.2023.0274] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 08/24/2023] [Accepted: 08/27/2023] [Indexed: 10/13/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is a leading cause of cancer-related death, and external beam radiation therapy has emerged as a promising approach for managing HCC. Proton beam therapy (PBT) offers dosimetric advantages over X-ray therapy, with superior physical properties known as the Bragg peak. PBT holds promise for reducing hepatotoxicity and allowing safe dose-escalation to the tumor. It has been tried in various clinical conditions and has shown promising local tumor control and survival outcomes. A recent phase III trial demonstrated the non-inferiority of PBT in local tumor control compared to current standard radiofrequency ablation in early-stage HCC. PBT also tended to show more favorable outcomes compared to transarterial chemoembolization in the intermediate stage, and has proven effective in-field disease control and safe toxicity profiles in advanced HCC. In this review, we discuss the rationale, clinical studies, optimal indication, and future directions of PBT in HCC treatment.
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Affiliation(s)
- Sung Uk Lee
- Center for Proton Therapy, National Cancer Center, Goyang, Korea
| | - Tae Hyun Kim
- Center for Proton Therapy, National Cancer Center, Goyang, Korea
- Center for Liver and Pancreatobiliary Cancer, National Cancer Center, Goyang, Korea
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4
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Hamaide V, Souris K, Dasnoy D, Glineur F, Macq B. Real-time image-guided treatment of mobile tumors in proton therapy by a library of treatment plans: a simulation study. Med Phys 2023; 50:465-479. [PMID: 36345808 DOI: 10.1002/mp.16084] [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: 05/16/2022] [Revised: 09/08/2022] [Accepted: 10/20/2022] [Indexed: 11/10/2022] Open
Abstract
PURPOSE To improve target coverage and reduce the dose in the surrounding organs-at-risks (OARs), we developed an image-guided treatment method based on a precomputed library of treatment plans controlled and delivered in real-time. METHODS A library of treatment plans is constructed by optimizing a plan for each breathing phase of a four dimensional computed tomography (4DCT). Treatments are delivered by simulation on a continuous sequence of synthetic computed tomographies (CTs) generated from real magnetic resonance imaging (MRI) sequences. During treatment, the plans for which the tumor are at a close distance to the current tumor position are selected to deliver their spots. The study is conducted on five liver cases. RESULTS We tested our approach under imperfect knowledge of the tumor positions with a 2 mm distance error. On average, compared to a 4D robustly optimized treatment plan, our approach led to a dose homogeneity increase of 5% (defined as 1 - D 5 - D 95 prescription $1-\frac{D_5-D_{95}}{\text{prescription}}$ ) in the target and a mean liver dose decrease of 23%. The treatment time was roughly increased by a factor of 2 but remained below 4 min on average. CONCLUSIONS Our image-guided treatment framework outperforms state-of-the-art 4D-robust plans for all patients in this study on both target coverage and OARs sparing, with an acceptable increase in treatment time under the current accuracy of the tumor tracking technology.
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Affiliation(s)
| | | | - Damien Dasnoy
- ICTEAM Institute, UCLouvain, Louvain-la-Neuve, Belgium
| | | | - Benoît Macq
- ICTEAM Institute, UCLouvain, Louvain-la-Neuve, Belgium
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5
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Zaki P, Chuong MD, Schaub SK, Lo SS, Ibrahim M, Apisarnthanarax S. Proton Beam Therapy and Photon-Based Magnetic Resonance Image-Guided Radiation Therapy: The Next Frontiers of Radiation Therapy for Hepatocellular Carcinoma. Technol Cancer Res Treat 2023; 22:15330338231206335. [PMID: 37908130 PMCID: PMC10621304 DOI: 10.1177/15330338231206335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 08/21/2023] [Accepted: 09/21/2023] [Indexed: 11/02/2023] Open
Abstract
External beam radiation therapy (EBRT) has increasingly been utilized in the treatment of hepatocellular carcinoma (HCC) due to technological advances with positive clinical outcomes. Innovations in EBRT include improved image guidance, motion management, treatment planning, and highly conformal techniques such as intensity-modulated radiation therapy (IMRT) and stereotactic body radiation therapy (SBRT). Moreover, proton beam therapy (PBT) and magnetic resonance image-guided radiation therapy (MRgRT) have expanded the capabilities of EBRT. PBT offers the advantage of minimizing low- and moderate-dose radiation to the surrounding normal tissue, thereby preserving uninvolved liver and allowing for dose escalation. MRgRT provides the advantage of improved soft tissue delineation compared to computerized tomography (CT) guidance. Additionally, MRgRT with online adaptive therapy is particularly useful for addressing motion not otherwise managed and reducing high-dose radiation to the normal tissue such as the stomach and bowel. PBT and online adaptive MRgRT are emerging technological advancements in EBRT that may provide a significant clinical benefit for patients with HCC.
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Affiliation(s)
- Peter Zaki
- Department of Radiation Oncology, University of Washington, Seattle, WA, USA
| | - Michael D. Chuong
- Department of Radiation Oncology, Miami Cancer Institute, Miami, FL, USA
| | - Stephanie K. Schaub
- Department of Radiation Oncology, University of Washington, Seattle, WA, USA
| | - Simon S. Lo
- Department of Radiation Oncology, University of Washington, Seattle, WA, USA
| | - Mariam Ibrahim
- School of Medicine, St. George's University, St. George's, Grenada
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6
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Sharma NK, Kappadath SC, Chuong M, Folkert M, Gibbs P, Jabbour SK, Jeyarajah DR, Kennedy A, Liu D, Meyer JE, Mikell J, Patel RS, Yang G, Mourtada F. The American Brachytherapy Society consensus statement for permanent implant brachytherapy using Yttrium-90 microsphere radioembolization for liver tumors. Brachytherapy 2022; 21:569-591. [PMID: 35599080 PMCID: PMC10868645 DOI: 10.1016/j.brachy.2022.04.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 03/25/2022] [Accepted: 04/14/2022] [Indexed: 11/02/2022]
Abstract
PURPOSE To develop a multidisciplinary consensus for high quality multidisciplinary implementation of brachytherapy using Yttrium-90 (90Y) microspheres transarterial radioembolization (90Y TARE) for primary and metastatic cancers in the liver. METHODS AND MATERIALS Members of the American Brachytherapy Society (ABS) and colleagues with multidisciplinary expertise in liver tumor therapy formulated guidelines for 90Y TARE for unresectable primary liver malignancies and unresectable metastatic cancer to the liver. The consensus is provided on the most recent literature and clinical experience. RESULTS The ABS strongly recommends the use of 90Y microsphere brachytherapy for the definitive/palliative treatment of unresectable liver cancer when recommended by the multidisciplinary team. A quality management program must be implemented at the start of 90Y TARE program development and follow-up data should be tracked for efficacy and toxicity. Patient-specific dosimetry optimized for treatment intent is recommended when conducting 90Y TARE. Implementation in patients on systemic therapy should account for factors that may enhance treatment related toxicity without delaying treatment inappropriately. Further management and salvage therapy options including retreatment with 90Y TARE should be carefully considered. CONCLUSIONS ABS consensus for implementing a safe 90Y TARE program for liver cancer in the multidisciplinary setting is presented. It builds on previous guidelines to include recommendations for appropriate implementation based on current literature and practices in experienced centers. Practitioners and cooperative groups are encouraged to use this document as a guide to formulate their clinical practices and to adopt the most recent dose reporting policies that are critical for a unified outcome analysis of future effectiveness studies.
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Affiliation(s)
- Navesh K Sharma
- Department of Radiation Oncology, Penn State Hershey School of Medicine, Hershey, PA
| | - S Cheenu Kappadath
- Department of Imaging Physics, UT MD Anderson Cancer Center, Houston, TX
| | - Michael Chuong
- Department of Radiation Oncology, Miami Cancer Institute, Miami, FL
| | - Michael Folkert
- Northwell Health Cancer Institute, Radiation Medicine at the Center for Advanced Medicine, New Hyde Park, NY
| | - Peter Gibbs
- Personalised Oncology Division, Walter and Eliza Hall Institute, Melbourne, Victoria, Australia
| | - Salma K Jabbour
- Rutgers Cancer Institute of New Jersey, Rutgers University, New Brunswick, NJ
| | | | | | - David Liu
- Vancouver General Hospital, Vancouver, British Columbia, Canada
| | | | | | - Rahul S Patel
- Icahn School of Medicine at Mount Sinai, New York, NY
| | - Gary Yang
- Loma Linda University, Loma Linda, CA
| | - Firas Mourtada
- Helen F. Graham Cancer Center & Research Institute, Christiana Care Health System, Newark, DE; Department of Radiation Oncology, Sidney Kimmel Cancer Center at Thomas Jefferson University, Philadelphia, PA.
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Taunk NK, Burgdorf B, Dong L, Ben-Josef E. Simultaneous Multiple Liver Metastasis Treated with Pencil Beam Proton Stereotactic Body Radiotherapy (SBRT). Int J Part Ther 2021; 8:89-94. [PMID: 34722815 PMCID: PMC8489493 DOI: 10.14338/ijpt-20-00085.1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Accepted: 03/17/2021] [Indexed: 12/25/2022] Open
Abstract
Compared with photon stereotactic body radiotherapy (SBRT) plans that may have to use many more penetrating x-ray beams for each isocenter, proton SBRT with ultrahypofractionated doses use fewer beam angles and offer significantly reduced low-dose radiation bath to normal liver tissue. We demonstrate techniques to deliver safe and effective proton SBRT, where planning and organ motion complexity further increased with multiple liver lesions. For treatment planning, we recommend robust and logical beam angles, avoiding devices and encouraging entry perpendicular to the dominant motion, as well as volumetric repainting to mitigate the interplay effect to clinically acceptable levels. This report highlights the significant technical challenges with ultrahypofractionated proton pencil beam scanning liver therapy, how they are managed, and the effectiveness of this treatment.
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Affiliation(s)
- Neil K Taunk
- Department of Radiation Oncology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Brendan Burgdorf
- Department of Radiation Oncology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Lei Dong
- Department of Radiation Oncology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Edgar Ben-Josef
- Department of Radiation Oncology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
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Chen LC, Lin HY, Hung SK, Chiou WY, Lee MS. Role of modern radiotherapy in managing patients with hepatocellular carcinoma. World J Gastroenterol 2021; 27:2434-2457. [PMID: 34092968 PMCID: PMC8160620 DOI: 10.3748/wjg.v27.i20.2434] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 04/16/2021] [Accepted: 04/26/2021] [Indexed: 02/06/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is the most common type of primary liver cancer. Several treatment options are available for managing HCC patients, classified roughly as local, local-regional, and systemic therapies. The high post-monotherapy recurrence rate of HCC urges the need for the use of combined modalities to increase tumor control and patient survival. Different international guidelines offer treatment recommendations based on different points of view and classification systems. Radiotherapy (RT) is a well-known local-regional treatment modality for managing many types of cancers, including HCC. However, only some of these treatment guidelines include RT, and the role of combined modalities is rarely mentioned. Hence, the present study reviewed clinical evidence for the use of different combined modalities in managing HCC, focusing on modern RT's role. Modern RT has an increased utility in managing HCC patients, mainly due to two driving forces. First, technological advancement (e.g., stereotactic body radiotherapy and advanced proton-beam therapy) enables precise delivery of radiation to increase tumor control and reduce side effects in the surrounding normal tissue. Second, the boom in developing target therapies and checkpoint-blockade immunotherapy prolongs overall survival in HCC patients, re-emphasizing the importance of local tumor control. Remarkably, RT combines with systemic therapies to generate the systemic therapy augmented by radiotherapy effect, a benefit now being actively investigated.
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Affiliation(s)
- Liang-Cheng Chen
- Department of Radiation Oncology, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Dalin, Chia-Yi 62247, Taiwan
| | - Hon-Yi Lin
- Department of Radiation Oncology, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Dalin, Chia-Yi 62247, Taiwan
- School of Medicine, Buddhist Tzu Chi University, Hualien 970, Taiwan
- Institute of Molecular Biology, National Chung Cheng University, Min-Hsiung, Chia-Yi 62102, Taiwan
| | - Shih-Kai Hung
- Department of Radiation Oncology, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Dalin, Chia-Yi 62247, Taiwan
- School of Medicine, Buddhist Tzu Chi University, Hualien 970, Taiwan
| | - Wen-Yen Chiou
- Department of Radiation Oncology, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Dalin, Chia-Yi 62247, Taiwan
- School of Medicine, Buddhist Tzu Chi University, Hualien 970, Taiwan
| | - Moon-Sing Lee
- Department of Radiation Oncology, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Dalin, Chia-Yi 62247, Taiwan
- School of Medicine, Buddhist Tzu Chi University, Hualien 970, Taiwan
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9
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Cozzi L, Comito T, Loi M, Fogliata A, Franzese C, Franceschini D, Clerici E, Reggiori G, Tomatis S, Scorsetti M. The Potential Role of Intensity-Modulated Proton Therapy in Hepatic Carcinoma in Mitigating the Risk of Dose De-Escalation. Technol Cancer Res Treat 2020; 19:1533033820980412. [PMID: 33287650 PMCID: PMC7727039 DOI: 10.1177/1533033820980412] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
PURPOSE To investigate the role of intensity-modulated proton therapy (IMPT) for hepatocellular carcinoma (HCC) patients to be treated with stereotactic body radiation therapy (SBRT) in a risk-adapted dose prescription regimen. METHODS A cohort of 30 patients was retrospectively selected as "at-risk" of dose de-escalation due to the proximity of the target volumes to dose-limiting healthy structures. IMPT plans were compared to volumetric modulated arc therapy (VMAT) RapidArc (RA) plans. The maximum dose prescription foreseen was 75 Gy in 3 fractions. The dosimetric analysis was performed on several quantitative metrics on the target volumes and organs at risk to identify the relative improvement of IMPT over VMAT and to determine if IMPT could mitigate the need of dose reduction and quantify the consequent potential patient accrual rate for protons. RESULTS IMPT and VMAT plans resulted in equivalent target dose distributions: both could ensure the required coverage for CTV and PTV. Systematic and significant improvements were observed with IMPT for all organs at risk and metrics. An average gain of 9.0 ± 11.6, 8.5 ± 7.7, 5.9 ± 7.1, 4.2 ± 6.4, 8.9 ± 7.1, 6.7 ± 7.5 Gy was found in the near-to-maximum doses for the ribs, chest wall, heart, duodenum, stomach and bowel bag respectively. Twenty patients violated one or more binding constraints with RA, while only 2 with IMPT. For all these patients, some dose de-intensification would have been required to respect the constraints. For photons, the maximum allowed dose ranged from 15.0 to 20.63 Gy per fraction while for the 2 proton cases it would have been 18.75 or 20.63 Gy. CONCLUSION The results of this in-silico planning study suggests that IMPT might result in advantages compared to photon-based VMAT for HCC patients to be treated with ablative SBRT. In particular, the dosimetric characteristics of protons may avoid the need for dose de-escalation in a risk-adapted prescription regimen for those patients with lesions located in proximity of dose-limiting healthy structures. Depending on the selection thresholds, the number of patients eligible for treatment at the full dose can be significantly increased with protons.
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Affiliation(s)
- Luca Cozzi
- Radiotherapy and Radiosurgery Department, Humanitas Clinical and Research Center, IRCSS, Milan-Rozzano, Italy.,Department of Biomedical Sciences, Humanitas University, Milan-Rozzano, Italy
| | - Tiziana Comito
- Radiotherapy and Radiosurgery Department, Humanitas Clinical and Research Center, IRCSS, Milan-Rozzano, Italy
| | - Mauro Loi
- Radiotherapy and Radiosurgery Department, Humanitas Clinical and Research Center, IRCSS, Milan-Rozzano, Italy
| | - Antonella Fogliata
- Radiotherapy and Radiosurgery Department, Humanitas Clinical and Research Center, IRCSS, Milan-Rozzano, Italy
| | - Ciro Franzese
- Radiotherapy and Radiosurgery Department, Humanitas Clinical and Research Center, IRCSS, Milan-Rozzano, Italy.,Department of Biomedical Sciences, Humanitas University, Milan-Rozzano, Italy
| | - Davide Franceschini
- Radiotherapy and Radiosurgery Department, Humanitas Clinical and Research Center, IRCSS, Milan-Rozzano, Italy
| | - Elena Clerici
- Radiotherapy and Radiosurgery Department, Humanitas Clinical and Research Center, IRCSS, Milan-Rozzano, Italy
| | - Giacomo Reggiori
- Radiotherapy and Radiosurgery Department, Humanitas Clinical and Research Center, IRCSS, Milan-Rozzano, Italy
| | - Stefano Tomatis
- Radiotherapy and Radiosurgery Department, Humanitas Clinical and Research Center, IRCSS, Milan-Rozzano, Italy
| | - Marta Scorsetti
- Radiotherapy and Radiosurgery Department, Humanitas Clinical and Research Center, IRCSS, Milan-Rozzano, Italy.,Department of Biomedical Sciences, Humanitas University, Milan-Rozzano, Italy
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Mitigation of motion effects in pencil-beam scanning - Impact of repainting on 4D robustly optimized proton treatment plans for hepatocellular carcinoma. Z Med Phys 2020; 32:63-73. [PMID: 33131995 PMCID: PMC9948857 DOI: 10.1016/j.zemedi.2020.08.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 07/29/2020] [Accepted: 08/14/2020] [Indexed: 12/27/2022]
Abstract
Proton fields delivered by the active scanning technique can be interfered with the intrafractional motion. This in-silico study seeks to mitigate the dosimetric impacts of motion artifacts, especially its interplay with the time-modulated dose delivery. Here four-dimensional (4d) robust optimization and dose repainting, which is the multiple application of the same field with reduced fluence, were combined. Two types of repainting were considered: layered and volumetric repainting. The time-resolved dose calculation, which is necessary to quantify the interplay effect, was integrated into the treatment planning system and validated. Nine clinical cases of hepatocellular carcinoma (HCC) showing motion in the range of 0.4-1.5cm were studied. It was found that the repainted delivery of 4D robustly optimized plans reduced the impact of interplay effect as quantified by the homogeneity index within the clinical target volume (CTV) to a tolerable level. Similarly, the fractional over- and underdosage was reduced sufficiently for some HCC cases to achieve the purpose of motion management. This holds true for both investigated types of repainting with small dosimetric advantages of volume repainting over layered repainting. Volume repainting, however, cannot be applied clinically in proton centers with slow energy changes. Thus, it served as a reference in the in-silico evaluation. It is recommended to perform the dynamic dose calculation for individual cases to judge if robust optimization in conjunction with repainting is sufficient to keep the interplay effect within bounds.
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11
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Cloyd JM, Ejaz A, Konda B, Makary MS, Pawlik TM. Neuroendocrine liver metastases: a contemporary review of treatment strategies. Hepatobiliary Surg Nutr 2020; 9:440-451. [PMID: 32832495 PMCID: PMC7423566 DOI: 10.21037/hbsn.2020.04.02] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 03/31/2020] [Indexed: 12/12/2022]
Abstract
Well-differentiated neuroendocrine tumors (NETs) are globally increasing in prevalence and the liver is the most common site of metastasis. Neuroendocrine liver metastases (NELM) are heterogeneous in clinical presentation and prognosis. Fortunately, recent advances in diagnostic techniques and therapeutic strategies have improved the multidisciplinary management of this challenging condition. When feasible, surgical resection of NELM offers the best long-term outcomes. General indications for hepatic resection include performance status acceptable for major liver surgery, grade 1 or 2 tumors, absence of extrahepatic disease, adequate size and function of future liver remnant, and feasibility of resecting >90% of metastases. Adjunct therapies including concomitant liver ablation are generally safe when used appropriately and may expand the number of patients eligible for surgery. Among patients with synchronous resectable NELM, resection of the primary either in a staged or combined fashion is recommended. For patients who are not surgical candidates, liver-directed therapies such as transarterial embolization, chemoembolization, and radioembolization can provide locoregional control and improve symptoms of carcinoid syndrome. Multiple systemic therapy options also exist for patients with advanced or progressive disease. Ongoing research efforts are needed to identify novel biomarkers that will define the optimal indications for and sequencing of treatments to be delivered in a personalized fashion.
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Affiliation(s)
- Jordan M. Cloyd
- Departments of Surgery, The Ohio State University, Wexner Medical Center, Columbus, OH, USA
| | - Aslam Ejaz
- Departments of Surgery, The Ohio State University, Wexner Medical Center, Columbus, OH, USA
| | - Bhavana Konda
- Departments of Internal Medicine, The Ohio State University, Wexner Medical Center, Columbus, OH, USA
| | - Mina S. Makary
- Departments of Radiology, The Ohio State University, Wexner Medical Center, Columbus, OH, USA
| | - Timothy M. Pawlik
- Departments of Surgery, The Ohio State University, Wexner Medical Center, Columbus, OH, USA
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12
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Cozzi L, Vanderstraeten R, Fogliata A, Chang FL, Wang PM. The role of a knowledge based dose-volume histogram predictive model in the optimisation of intensity-modulated proton plans for hepatocellular carcinoma patients : Training and validation of a novel commercial system. Strahlenther Onkol 2020; 197:332-342. [PMID: 32676685 DOI: 10.1007/s00066-020-01664-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Accepted: 06/29/2020] [Indexed: 12/24/2022]
Abstract
PURPOSE To investigate the performance of a knowledge-based RapidPlan, for optimisation of intensity-modulated proton therapy (IMPT) plans applied to hepatocellular cancer (HCC) patients. METHODS A cohort of 65 patients was retrospectively selected: 50 were used to "train" the model, while the remaining 15 provided independent validation. The performance of the RapidPlan model was benchmarked against manual optimisation and was also compared to volumetric modulated arc therapy (RapidArc) photon plans. A subanalysis appraised the performance of the RapidPlan model applied to patients with lesions ≤300 cm3 or larger. Quantitative assessment was based on several metrics derived from the constraints of the NRG-GI003 clinical trial. RESULTS There was an equivalence between manual plans and RapidPlan-optimised IMPT plans, which outperformed the RapidArc plans. The planning dose-volume objectives were met on average for all structures except for D0.5 cm3 ≤30 Gy in the bowels. Limiting the results to the class-solution proton plans (all values in Gy), the data for manual plans vs RapidPlan-based IMPT plans, respectively, showed the following: D99% to the target of 47.5 ± 1.4 vs 47.2 ± 1.2; for organs at risk, the mean dose to the healthy liver was 6.7 ± 3.6 vs 6.7 ± 3.7; the mean dose to the kidneys was 0.2 ± 0.5 vs 0.1 ± 0.2; D0.5 cm3 for the bowels was 33.4 ± 16.4 vs 30.2 ± 16.0; for the stomach was 17.9 ± 19.9 vs 14.9 ± 18.8; for the oesophagus was 17.9 ± 15.1 vs 14.9 ± 13.9; for the spinal cord was 0.5 ± 1.6 vs 0.2 ± 0.7. The model performed similarly for cases with small or large lesions. CONCLUSION A knowledge-based RapidPlan model was trained and validated for IMPT. The results demonstrate that RapidPlan can be trained adequately for IMPT in HCC. The quality of the RapidPlan-based plans is at least equivalent compared to what is achievable with manual planning. RapidPlan also confirmed the potential to optimise the quality of the proton therapy results, thus reducing the impact of operator planning skills on patient results.
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Affiliation(s)
- Luca Cozzi
- Radiotherapy and Radiosurgery Department, Humanitas Clinical and Research Center, IRCSS, Via Manzoni 56, 20089, Milan-Rozzano, Italy. .,Department of Biomedical Sciences, Humanitas University, Rozzano, Italy.
| | | | - Antonella Fogliata
- Radiotherapy and Radiosurgery Department, Humanitas Clinical and Research Center, IRCSS, Via Manzoni 56, 20089, Milan-Rozzano, Italy
| | - Feng-Ling Chang
- Radiation Oncology Department, Asian University Hospital, Taichung, Taiwan, Province of China
| | - Po-Ming Wang
- Radiation Oncology Department, Asian University Hospital, Taichung, Taiwan, Province of China
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Barry A, Apisarnthanarax S, O'Kane GM, Sapisochin G, Beecroft R, Salem R, Yoon SM, Lim YS, Bridgewater J, Davidson B, Scorsetti M, Solbiati L, Diehl A, Schuffenegger PM, Sham JG, Cavallucci D, Galvin Z, Dawson LA, Hawkins MA. Management of primary hepatic malignancies during the COVID-19 pandemic: recommendations for risk mitigation from a multidisciplinary perspective. Lancet Gastroenterol Hepatol 2020; 5:765-775. [PMID: 32511951 PMCID: PMC7274990 DOI: 10.1016/s2468-1253(20)30182-5] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 05/01/2020] [Accepted: 05/01/2020] [Indexed: 01/08/2023]
Abstract
Around the world, recommendations for cancer treatment are being adapted in real time in response to the pandemic of COVID-19. We, as a multidisciplinary team, reviewed the standard management options, according to the Barcelona Clinic Liver Cancer classification system, for hepatocellular carcinoma. We propose treatment recommendations related to COVID-19 for the different stages of hepatocellular carcinoma (ie, 0, A, B, and C), specifically in relation to surgery, locoregional therapies, and systemic therapy. We suggest potential strategies to modify risk during the pandemic and aid multidisciplinary treatment decision making. We also review the multidisciplinary management of intrahepatic cholangiocarcinoma as a potentially curable and incurable diagnosis in the setting of COVID-19.
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Affiliation(s)
- Aisling Barry
- Department of Radiation Oncology, University of Toronto, Toronto, ON, Canada; Radiation Medicine Program, Toronto General Hospital, University Health Network, Toronto, ON, Canada.
| | - Smith Apisarnthanarax
- Seattle Cancer Care Alliance, and Department of Radiation Oncology, University of Washington, Seattle, WA, USA
| | - Grainne M O'Kane
- Department of Medical Oncology and Haematology, Toronto General Hospital, University Health Network, Toronto, ON, Canada
| | - Gonzalo Sapisochin
- Princess Margaret Cancer Centre, and Department of Surgery, Toronto General Hospital, University Health Network, Toronto, ON, Canada
| | - Robert Beecroft
- Department of Medical Imaging, Toronto General Hospital, University Health Network, Toronto, ON, Canada
| | - Riad Salem
- Department of Interventional Radiology, Northwestern University, Chicago, IL, USA
| | - Sang Min Yoon
- Department of Radiation Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Young-Suk Lim
- Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | | | - Brian Davidson
- Department of Surgical Biotechnology, UCL Division of Surgery and Interventional Science, University College London, London, UK
| | - Marta Scorsetti
- Radiotherapy and Radiosurgery Department, Humanitas Clinical and Research Center, IRCCS Humanitas Research Hospital, Milan, Italy; Department of Biomedical Sciences, Humanitas University, Milan, Italy
| | - Luigi Solbiati
- Radiology Department, Humanitas Clinical and Research Center, IRCCS Humanitas Research Hospital, Milan, Italy; Department of Biomedical Sciences, Humanitas University, Milan, Italy
| | - Adam Diehl
- Department of Medical Oncology, University of Washington, Seattle, WA, USA
| | - Pablo Munoz Schuffenegger
- Radiation Oncology Unit, Department of Hematology Oncology, Pontifical Catholic University of Chile, Santiago, Chile
| | - Jonathan G Sham
- Department of Surgery, University of Washington, Seattle, WA, USA
| | - David Cavallucci
- Department of Surgery, Royal Brisbane and Women's Hospital, University of Queensland, Brisbane, QLD, Australia
| | - Zita Galvin
- Multi-Organ Transplant Program, Toronto General Hospital, University Health Network, Toronto, ON, Canada
| | - Laura A Dawson
- Department of Radiation Oncology, University of Toronto, Toronto, ON, Canada; Radiation Medicine Program, Toronto General Hospital, University Health Network, Toronto, ON, Canada
| | - Maria A Hawkins
- UCL Cancer Institute, University College London, London, UK; Department of Medical Physics and Biomedical Engineering, University College London, London, UK
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