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Bradley P, Montenegro C, Piazza C. Modern management of distant metastases from head and neck squamous cell carcinoma. Curr Opin Otolaryngol Head Neck Surg 2024:00020840-990000000-00163. [PMID: 39560742 DOI: 10.1097/moo.0000000000001024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2024]
Abstract
PURPOSE OF REVIEW The rate of distant metastases in patients with head and neck squamous cell carcinoma (HNSCC) ranges between 4 and 26%. Their appearance marks a critical stage in disease progression, significantly reducing survival rates. Treatment options require a multidisciplinary approach and differ based on the number and extension of distant metastases. The aim of this narrative review is to provide a comprehensive and updated overview of the current state of the art in management of such a clinical scenario. RECENT FINDINGS Accurate detection and staging of distant metastases are essential to determine prognosis and guide therapeutic strategies. Oligometastatic condition refers to patients with only a few distant metastases (up to 5). Surgery or stereotactic body radiotherapy are the best curative treatment options for oligometastatic. However, the majority of HNSCC has a polymetastatic disease, not amenable to curative approach. Therefore, systemic therapies, including chemotherapy (CHT) or target molecular therapy and/or best supportive care, are usually reserved to these patients. Rarely, head and neck region, in particular supraclavicular cervical lymph nodes, may be a site of distant metastases from non-head and neck cancer, particularly from the genitourinary and gastrointestinal tracts. SUMMARY The occurrence of distant metastases in HNSCC represents a pivotal point in the disease progression, lowering survival rates. Pattern of distant metastases has been related to survival outcomes. Patients with distant metastases from an HNSCC always require a multidisciplinary approach and an accurate selection is necessary to individualize the best treatment strategy.
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Affiliation(s)
- Patrick Bradley
- Department of Otolaryngology - Head and Neck Surgery, Nottingham University Hospitals, Queens Medical Centre Campus, Nottingham, UK
| | - Claudia Montenegro
- Unit of Otorhinolaryngology - Head and Neck Surgery, ASST Spedali Civili of Brescia
- Department of Surgical and Medical Specialties, Radiological Sciences, and Public Health (DSMC), University of Brescia, School of Medicine, Brescia, Italy
| | - Cesare Piazza
- Unit of Otorhinolaryngology - Head and Neck Surgery, ASST Spedali Civili of Brescia
- Department of Surgical and Medical Specialties, Radiological Sciences, and Public Health (DSMC), University of Brescia, School of Medicine, Brescia, Italy
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2
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Rossebo AE, Zlevor AM, Knott EA, Mao L, Couillard AB, Ziemlewicz TJ, Hinshaw JL, Abel EJ, Lubner MG, Knavel Koepsel EM, Wells SA, Stratchko LM, Laeseke PF, Lee FT. Percutaneous Microwave Ablation for Treatment of Retroperitoneal Tumors. Radiol Imaging Cancer 2024; 6:e230080. [PMID: 38334471 PMCID: PMC10988338 DOI: 10.1148/rycan.230080] [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: 06/02/2023] [Revised: 11/05/2023] [Accepted: 12/15/2023] [Indexed: 02/10/2024]
Abstract
Purpose To determine if microwave ablation (MWA) of retroperitoneal tumors can safely provide high rates of local tumor control. Materials and Methods This retrospective study included 19 patients (median age, 65 years [range = 46-78 years]; 13 [68.4%] men and six [31.6%] women) with 29 retroperitoneal tumors treated over 22 MWA procedures. Hydrodissection (0.9% saline with 2% iohexol) was injected in 17 of 22 (77.3%) procedures to protect nontarget anatomy. The primary outcomes evaluated were local tumor progression (LTP) and complication rates. Oncologic outcomes, including overall survival (OS), progression-free survival (PFS), and treatment-free interval (TFI), were examined as secondary outcome measures. Results Median follow-up was 18 months (range = 0.5-113). Hydrodissection was successful in displacing nontarget anatomy in 16 of 17 (94.1%) procedures. The LTP rate was 3.4% (one of 29; 95% CI: 0.1, 17.8) per tumor and 5.3% (one of 19; 95% CI: 0.1, 26.0) per patient. The overall complication rate per patient was 15.8% (three of 19), including two minor complications and one major complication. The OS rate at 1, 2, and 3 years was 81.8%, 81.8%, and 72.7%, respectively, with a median OS estimated at greater than 7 years. There was no evidence of a difference in OS (P = .34) and PFS (P = .56) between patients with renal cell carcinoma (six of 19 [31.6%]) versus other tumors (13 of 19 [68.4%]) and patients treated with no evidence of disease (15 of 22 [68.2%]) versus patients with residual tumors (seven of 22 [31.8%]). Median TFI was 18 months (range = 0.5-108). Conclusion Treatment of retroperitoneal tumors with MWA combined with hydrodissection provided high rates of local control, prolonged systemic therapy-free intervals, and few serious complications. Keywords: Ablation Techniques (ie, Radiofrequency, Thermal, Chemical), Retroperitoneum, Microwave Ablation, Hydrodissection © RSNA, 2024.
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Affiliation(s)
- Annika E. Rossebo
- From the Departments of Radiology (A.E.R., A.M.Z., A.B.C., T.J.Z.,
J.L.H., E.J.A., M.G.L., E.M.K.K., S.A.W., L.M.S., P.F.L., F.T.L.), Biomedical
Engineering (A.E.R., F.T.L.), Biostatistics and Medical Informatics (L.M.), and
Urology (J.L.H., E.J.A., F.T.L.), University of Wisconsin–Madison School
of Medicine and Public Health, 600 Highland Ave, E3/378 Clinical Science Center,
Madison, WI 53792-3252; and Cleveland Clinic Lerner College of Medicine,
Cleveland, Ohio (E.A.K.)
| | - Annie M. Zlevor
- From the Departments of Radiology (A.E.R., A.M.Z., A.B.C., T.J.Z.,
J.L.H., E.J.A., M.G.L., E.M.K.K., S.A.W., L.M.S., P.F.L., F.T.L.), Biomedical
Engineering (A.E.R., F.T.L.), Biostatistics and Medical Informatics (L.M.), and
Urology (J.L.H., E.J.A., F.T.L.), University of Wisconsin–Madison School
of Medicine and Public Health, 600 Highland Ave, E3/378 Clinical Science Center,
Madison, WI 53792-3252; and Cleveland Clinic Lerner College of Medicine,
Cleveland, Ohio (E.A.K.)
| | - Emily A. Knott
- From the Departments of Radiology (A.E.R., A.M.Z., A.B.C., T.J.Z.,
J.L.H., E.J.A., M.G.L., E.M.K.K., S.A.W., L.M.S., P.F.L., F.T.L.), Biomedical
Engineering (A.E.R., F.T.L.), Biostatistics and Medical Informatics (L.M.), and
Urology (J.L.H., E.J.A., F.T.L.), University of Wisconsin–Madison School
of Medicine and Public Health, 600 Highland Ave, E3/378 Clinical Science Center,
Madison, WI 53792-3252; and Cleveland Clinic Lerner College of Medicine,
Cleveland, Ohio (E.A.K.)
| | - Lu Mao
- From the Departments of Radiology (A.E.R., A.M.Z., A.B.C., T.J.Z.,
J.L.H., E.J.A., M.G.L., E.M.K.K., S.A.W., L.M.S., P.F.L., F.T.L.), Biomedical
Engineering (A.E.R., F.T.L.), Biostatistics and Medical Informatics (L.M.), and
Urology (J.L.H., E.J.A., F.T.L.), University of Wisconsin–Madison School
of Medicine and Public Health, 600 Highland Ave, E3/378 Clinical Science Center,
Madison, WI 53792-3252; and Cleveland Clinic Lerner College of Medicine,
Cleveland, Ohio (E.A.K.)
| | - Allison B. Couillard
- From the Departments of Radiology (A.E.R., A.M.Z., A.B.C., T.J.Z.,
J.L.H., E.J.A., M.G.L., E.M.K.K., S.A.W., L.M.S., P.F.L., F.T.L.), Biomedical
Engineering (A.E.R., F.T.L.), Biostatistics and Medical Informatics (L.M.), and
Urology (J.L.H., E.J.A., F.T.L.), University of Wisconsin–Madison School
of Medicine and Public Health, 600 Highland Ave, E3/378 Clinical Science Center,
Madison, WI 53792-3252; and Cleveland Clinic Lerner College of Medicine,
Cleveland, Ohio (E.A.K.)
| | - Timothy J. Ziemlewicz
- From the Departments of Radiology (A.E.R., A.M.Z., A.B.C., T.J.Z.,
J.L.H., E.J.A., M.G.L., E.M.K.K., S.A.W., L.M.S., P.F.L., F.T.L.), Biomedical
Engineering (A.E.R., F.T.L.), Biostatistics and Medical Informatics (L.M.), and
Urology (J.L.H., E.J.A., F.T.L.), University of Wisconsin–Madison School
of Medicine and Public Health, 600 Highland Ave, E3/378 Clinical Science Center,
Madison, WI 53792-3252; and Cleveland Clinic Lerner College of Medicine,
Cleveland, Ohio (E.A.K.)
| | - J. Louis Hinshaw
- From the Departments of Radiology (A.E.R., A.M.Z., A.B.C., T.J.Z.,
J.L.H., E.J.A., M.G.L., E.M.K.K., S.A.W., L.M.S., P.F.L., F.T.L.), Biomedical
Engineering (A.E.R., F.T.L.), Biostatistics and Medical Informatics (L.M.), and
Urology (J.L.H., E.J.A., F.T.L.), University of Wisconsin–Madison School
of Medicine and Public Health, 600 Highland Ave, E3/378 Clinical Science Center,
Madison, WI 53792-3252; and Cleveland Clinic Lerner College of Medicine,
Cleveland, Ohio (E.A.K.)
| | - E. Jason Abel
- From the Departments of Radiology (A.E.R., A.M.Z., A.B.C., T.J.Z.,
J.L.H., E.J.A., M.G.L., E.M.K.K., S.A.W., L.M.S., P.F.L., F.T.L.), Biomedical
Engineering (A.E.R., F.T.L.), Biostatistics and Medical Informatics (L.M.), and
Urology (J.L.H., E.J.A., F.T.L.), University of Wisconsin–Madison School
of Medicine and Public Health, 600 Highland Ave, E3/378 Clinical Science Center,
Madison, WI 53792-3252; and Cleveland Clinic Lerner College of Medicine,
Cleveland, Ohio (E.A.K.)
| | - Meghan G. Lubner
- From the Departments of Radiology (A.E.R., A.M.Z., A.B.C., T.J.Z.,
J.L.H., E.J.A., M.G.L., E.M.K.K., S.A.W., L.M.S., P.F.L., F.T.L.), Biomedical
Engineering (A.E.R., F.T.L.), Biostatistics and Medical Informatics (L.M.), and
Urology (J.L.H., E.J.A., F.T.L.), University of Wisconsin–Madison School
of Medicine and Public Health, 600 Highland Ave, E3/378 Clinical Science Center,
Madison, WI 53792-3252; and Cleveland Clinic Lerner College of Medicine,
Cleveland, Ohio (E.A.K.)
| | - Erica M. Knavel Koepsel
- From the Departments of Radiology (A.E.R., A.M.Z., A.B.C., T.J.Z.,
J.L.H., E.J.A., M.G.L., E.M.K.K., S.A.W., L.M.S., P.F.L., F.T.L.), Biomedical
Engineering (A.E.R., F.T.L.), Biostatistics and Medical Informatics (L.M.), and
Urology (J.L.H., E.J.A., F.T.L.), University of Wisconsin–Madison School
of Medicine and Public Health, 600 Highland Ave, E3/378 Clinical Science Center,
Madison, WI 53792-3252; and Cleveland Clinic Lerner College of Medicine,
Cleveland, Ohio (E.A.K.)
| | - Shane A. Wells
- From the Departments of Radiology (A.E.R., A.M.Z., A.B.C., T.J.Z.,
J.L.H., E.J.A., M.G.L., E.M.K.K., S.A.W., L.M.S., P.F.L., F.T.L.), Biomedical
Engineering (A.E.R., F.T.L.), Biostatistics and Medical Informatics (L.M.), and
Urology (J.L.H., E.J.A., F.T.L.), University of Wisconsin–Madison School
of Medicine and Public Health, 600 Highland Ave, E3/378 Clinical Science Center,
Madison, WI 53792-3252; and Cleveland Clinic Lerner College of Medicine,
Cleveland, Ohio (E.A.K.)
| | - Lindsay M. Stratchko
- From the Departments of Radiology (A.E.R., A.M.Z., A.B.C., T.J.Z.,
J.L.H., E.J.A., M.G.L., E.M.K.K., S.A.W., L.M.S., P.F.L., F.T.L.), Biomedical
Engineering (A.E.R., F.T.L.), Biostatistics and Medical Informatics (L.M.), and
Urology (J.L.H., E.J.A., F.T.L.), University of Wisconsin–Madison School
of Medicine and Public Health, 600 Highland Ave, E3/378 Clinical Science Center,
Madison, WI 53792-3252; and Cleveland Clinic Lerner College of Medicine,
Cleveland, Ohio (E.A.K.)
| | - Paul F. Laeseke
- From the Departments of Radiology (A.E.R., A.M.Z., A.B.C., T.J.Z.,
J.L.H., E.J.A., M.G.L., E.M.K.K., S.A.W., L.M.S., P.F.L., F.T.L.), Biomedical
Engineering (A.E.R., F.T.L.), Biostatistics and Medical Informatics (L.M.), and
Urology (J.L.H., E.J.A., F.T.L.), University of Wisconsin–Madison School
of Medicine and Public Health, 600 Highland Ave, E3/378 Clinical Science Center,
Madison, WI 53792-3252; and Cleveland Clinic Lerner College of Medicine,
Cleveland, Ohio (E.A.K.)
| | - Fred T. Lee
- From the Departments of Radiology (A.E.R., A.M.Z., A.B.C., T.J.Z.,
J.L.H., E.J.A., M.G.L., E.M.K.K., S.A.W., L.M.S., P.F.L., F.T.L.), Biomedical
Engineering (A.E.R., F.T.L.), Biostatistics and Medical Informatics (L.M.), and
Urology (J.L.H., E.J.A., F.T.L.), University of Wisconsin–Madison School
of Medicine and Public Health, 600 Highland Ave, E3/378 Clinical Science Center,
Madison, WI 53792-3252; and Cleveland Clinic Lerner College of Medicine,
Cleveland, Ohio (E.A.K.)
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Yang J, Liao W, Su S, Zeng N, Zhang S, He J, Chen N. Long-term outcomes of metastasis-directed stereotactic body radiation therapy in metastatic nasopharyngeal carcinoma. Cancer Med 2024; 13:e6764. [PMID: 38148586 PMCID: PMC10807683 DOI: 10.1002/cam4.6764] [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: 06/22/2023] [Revised: 10/22/2023] [Accepted: 11/13/2023] [Indexed: 12/28/2023] Open
Abstract
BACKGROUND The study aims to evaluate the outcomes of metastasis-directed stereotactic body radiation therapy (SBRT) in metastatic nasopharyngeal carcinoma (mNPC). METHODS We reviewed all SBRT conducted in patients with mNPC in our institution between 2013 and 2022. Systemic therapy was performed with chemotherapy with or without anti-programmed death-1 (PD-1) therapy. Local treatment delivered with ablative purpose in stereotactic setting with dose/fraction ≥5 Gy was evaluated. Kaplan-Meier analyses were used to determine the rates of local control (LC), progression-free survival (PFS), and overall survival (OS). Univariate and multivariate analyses were performed by Cox regression. RESULTS A total of 54 patients with 76 metastatic sites receiving SBRT were analyzed. Median follow-up was 49 months. The 3-year LC, PFS, and OS rates were 89.1%, 29.4%, and 57.9%, respectively. Adding a PD-1 inhibitor to SBRT tended to prolong median OS (50.1 vs. 32.2 months, p = 0.068). Patients receiving a biological effective dose (BED, α/β = 10) ≥ 80 Gy had a significantly longer median OS compared to those who received a lower dose (not reached vs. 29.5 months, p = 0.004). Patients with oligometastases (1-5 metastases) had a better median OS (not reached vs. 29.5 months, p < 0.001) and PFS (34.3 vs. 4.6 months, p < 0.001). Pretreatment EBV-DNA and maintenance therapy were also significant predictors for OS. CONCLUSIONS Metastatic NPC patients could benefit from metastases-directed SBRT in combination with systemic therapy.
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Affiliation(s)
- Jiangping Yang
- Department of Head and Neck Oncology and Department of Radiation Oncology, Cancer Center and State Key Laboratory of Biotherapy, West China HospitalSichuan UniversityChengduChina
| | - Wenjun Liao
- Department of Radiation Oncology, Radiation Oncology Key Laboratory of Sichuan ProvinceSichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of ChinaChengduChina
| | - Shitong Su
- Department of Head and Neck Oncology and Department of Radiation Oncology, Cancer Center and State Key Laboratory of Biotherapy, West China HospitalSichuan UniversityChengduChina
| | - Ni Zeng
- Department of Head and Neck Oncology and Department of Radiation Oncology, Cancer Center and State Key Laboratory of Biotherapy, West China HospitalSichuan UniversityChengduChina
| | - Shichuan Zhang
- Department of Radiation Oncology, Radiation Oncology Key Laboratory of Sichuan ProvinceSichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of ChinaChengduChina
| | - Jinlan He
- Department of Head and Neck Oncology and Department of Radiation Oncology, Cancer Center and State Key Laboratory of Biotherapy, West China HospitalSichuan UniversityChengduChina
| | - Nianyong Chen
- Department of Head and Neck Oncology and Department of Radiation Oncology, Cancer Center and State Key Laboratory of Biotherapy, West China HospitalSichuan UniversityChengduChina
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4
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Ishiba T, Nishibuchi I, Hara F, Shikama N, Shien T, Iwata H. Metastasis-directed therapy for oligometastases in breast cancer. Jpn J Clin Oncol 2023; 53:893-898. [PMID: 37424379 DOI: 10.1093/jjco/hyad077] [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: 02/19/2023] [Accepted: 06/22/2023] [Indexed: 07/11/2023] Open
Abstract
The concept of oligometastases was first proposed to describe a disease state between localized cancer and extensive metastasis. After the emergence of variations in the definition of oligometastasis, in April 2020 the European Society for Radiotherapy and Oncology and the European Organization for Research and Treatment of Cancer defined oligometastases as the presence of one to five metastatic lesions that can be safely treated. However, the pathogenesis of oligometastases remains unknown, and it is uncertain which patients will benefit from metastasis-directed therapy. Breast cancer with oligometastases is generally managed with systemic therapy. Retrospective studies have suggested that the addition of metastasis-directed therapy, such as surgery, radiofrequency ablation and stereotactic body radiation therapy, may increase overall survival in breast cancer patients with oligometastases, but as yet there have been no prospective studies. Phase II trials of stereotactic body radiation therapy or fractionated irradiation for oligometastases of breast cancer have demonstrated impressive rates of local control and overall survival. Although the efficacy of stereotactic body radiation therapy in the SABR-COMET was largely anticipated, it is noteworthy that only 18% of the patient population had breast cancer. For this reason, various trials were planned or are being conducted globally to investigate the efficacy of metastasis-directed therapy for oligometastases of breast cancer. Metastasis-directed therapy for oligometastases has been shown to be effective, and stereotactic body radiation therapy and other therapies are commonly used internationally and are considered to be safe. However, the efficacy of metastasis-directed therapy for oligometastases has not yet been proven. The results of future clinical trials are thus eagerly awaited.
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Affiliation(s)
- Toshiyuki Ishiba
- Department of Breast Surgery, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital, Tokyo, Japan
| | - Ikuno Nishibuchi
- Department of Radiation Oncology, Hiroshima University Graduate School of Biomedical & Health Sciences, Hiroshima, Japan
| | - Fumikata Hara
- Breast Oncology Center, The Cancer Institute Hospital of JFCR, Tokyo, Japan
| | - Naoto Shikama
- Department of Radiation Oncology, Juntendo University, Tokyo, Japan
| | - Tadahiko Shien
- Department of Breast and Endocrine Surgery, Okayama University Hospital, Okayama, Japan
| | - Hiroji Iwata
- Department of Breast Oncology, Aichi Cancer Center, Nagoya, Japan
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Zayed S, Louie AV, Breadner DA, Palma DA, Correa RJM. Radiation and immune checkpoint inhibitors in the treatment of oligometastatic non-small-cell lung cancer: a practical review of rationale, recent data, and research questions. Ther Adv Med Oncol 2023; 15:17588359231183668. [PMID: 37435562 PMCID: PMC10331344 DOI: 10.1177/17588359231183668] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Accepted: 05/31/2023] [Indexed: 07/13/2023] Open
Abstract
The combined use of stereotactic ablative radiotherapy (SABR) and immune checkpoint inhibitors (ICIs) is an emerging treatment paradigm for oligometastatic non-small-cell lung cancer (NSCLC). Recent phase I and II trial data suggest that SABR to multiple metastases in addition to ICI use is safe and effective with promising progression-free survival and overall survival signals. There is great interest in capitalizing on combined immunomodulation from these two modalities for the treatment of oligometastatic NSCLC. Ongoing trials seek to validate the safety, efficacy, and preferred sequencing of SABR and ICI. This narrative review of the role of SABR when combined with ICI in oligometastatic NSCLC discusses the rationale for this bimodality treatment, summarizes recent clinical trial evidence, and proposes key principles of management based on the available evidence.
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Affiliation(s)
- Sondos Zayed
- Department of Radiation Oncology, London Health Sciences Centre, London, ON, Canada
| | - Alexander V. Louie
- Department of Radiation Oncology, Sunnybrook Hospital Odette Cancer Centre, Toronto, ON, Canada
| | - Daniel A. Breadner
- Department of Medical Oncology, London Health Sciences Centre, London, ON, Canada
| | - David A. Palma
- Department of Radiation Oncology, London Health Sciences Centre, London, ON, Canada
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Ho CB, Tsai JT, Chen CY, Shiah HS, Chen HY, Ting LL, Kuo CC, Lai IC, Lai HY, Chung CL, Lee KL, Tzeng HE, Lee KH, Lee HL, Chen SW, Chiou JF. Effectiveness of Stereotactic Ablative Radiotherapy for Systemic Therapy Respondents with Inoperable Pulmonary Oligometastases and Oligoprogression. Diagnostics (Basel) 2023; 13:diagnostics13091597. [PMID: 37174988 PMCID: PMC10177978 DOI: 10.3390/diagnostics13091597] [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: 03/09/2023] [Revised: 04/15/2023] [Accepted: 04/23/2023] [Indexed: 05/15/2023] Open
Abstract
Stereotactic ablative radiotherapy (SABR) may improve survival in patients with inoperable pulmonary oligometastases. However, the impact of pulmonary oligometastatic status after systemic therapy on SABR outcomes remains unclear. Hence, we investigated the outcomes of SABR in 45 patients with 77 lung tumors and the prognostic value of pulmonary oligoprogression. Eligibility criteria were pulmonary oligometastases (defined as ≤5 metastatic lung tumors), controlled extrapulmonary disease (EPD) after front-line systemic therapy, SABR as primary local treatment for inoperable pulmonary metastases, and consecutive imaging follow-up. Oligometastatic lung tumor was classified into controlled or oligoprogressive status. Overall survival (OS), in-field progression-free survival (IFPFS), out-field progression-free survival (OFPFS), and prognostic variables were evaluated. With 21.8 months median follow-up, the median OS, IFPFS, and OFPFS were 28.3, not reached, and 6.5 months, respectively. Two-year OS, IFPFS, and OFPFS rates were 56.0%, 74.2%, and 17.3%, respectively. Oligoprogressive status (p = 0.003), disease-free interval < 24 months (p = 0.041), and biologically effective dose (BED10) < 100 Gy (p = 0.006) were independently associated with inferior OS. BED10 ≥ 100 Gy (p = 0.029) was independently correlated with longer IFPFS. Oligoprogressive status (p = 0.017) and EPD (p = 0.019) were significantly associated with inferior OFPFS. Grade ≥ 2 radiation pneumonitis occurred in four (8.9%) patients. Conclusively, SABR with BED10 ≥ 100 Gy could provide substantial in-field tumor control and longer OS for systemic therapy respondents with inoperable pulmonary oligometastases. Oligoprogressive lung tumors exhibited a higher risk of out-field treatment failure and shorter OS. Hence, systemic therapy should be tailored for patients with oligoprogression to reduce the risk of out-field treatment failure. However, in the absence of effective systemic therapy, SABR is a reasonable alternative to reduce resistant tumor burden.
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Affiliation(s)
- Chin-Beng Ho
- Ph.D. Program for Cancer Molecular Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University and Academia Sinica, Taipei Medical University, Taipei 110301, Taiwan
- Department of Radiation Oncology, Camillian Saint Mary's Hospital Luodong, Yilan 265502, Taiwan
- Department of Radiation Oncology, Taipei Medical University Hospital, Taipei 110301, Taiwan
| | - Jo-Ting Tsai
- Department of Radiation Oncology, Taipei Medical University-Shuang Ho Hospital, New Taipei City 235041, Taiwan
- Department of Radiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110301, Taiwan
| | - Chun-You Chen
- Taipei Cancer Center, Taipei Medical University, Taipei 110301, Taiwan
- Department of Radiation Oncology, Wan Fang Hospital, Taipei Medical University, Taipei 116079, Taiwan
| | - Her-Shyong Shiah
- Division of Hematology and Oncology, Department of Internal Medicine, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City 231016, Taiwan
- Graduate Institute of Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei 110301, Taiwan
| | - Hsuan-Yu Chen
- Ph.D. Program for Cancer Molecular Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University and Academia Sinica, Taipei Medical University, Taipei 110301, Taiwan
- Institute of Statistical Science, Academia Sinica, Taipei 115201, Taiwan
- Department of Heavy Particles and Radiation Oncology, Taipei Veterans General Hospital, Taipei 112201, Taiwan
| | - Lai-Lei Ting
- Department of Radiation Oncology, Taipei Medical University Hospital, Taipei 110301, Taiwan
| | - Chia-Chun Kuo
- Ph.D. Program for Cancer Molecular Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University and Academia Sinica, Taipei Medical University, Taipei 110301, Taiwan
- Department of Radiation Oncology, Taipei Medical University Hospital, Taipei 110301, Taiwan
- Taipei Cancer Center, Taipei Medical University, Taipei 110301, Taiwan
| | - I-Chun Lai
- Department of Heavy Particles and Radiation Oncology, Taipei Veterans General Hospital, Taipei 112201, Taiwan
- School of Medicine, National Yang Ming Chiao Tung University, Taipei 112304, Taiwan
| | - Hsin-Yi Lai
- Department of Medical Imaging, Taipei Medical University Hospital, Taipei Medical University, Taipei 110301, Taiwan
| | - Chi-Li Chung
- Division of Pulmonary Medicine, Department of Internal Medicine, Taipei Medical University Hospital, Taipei Medical University, Taipei 110301, Taiwan
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei 110301, Taiwan
- Division of Thoracic Medicine, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110301, Taiwan
| | - Kai-Ling Lee
- Division of Pulmonary Medicine, Department of Internal Medicine, Taipei Medical University Hospital, Taipei Medical University, Taipei 110301, Taiwan
| | - Huey-En Tzeng
- Graduate Institute of Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei 110301, Taiwan
- Division of Hematology/Medical Oncology, Department of Medicine, Taichung Veterans General Hospital, Taichung 407219, Taiwan
| | - Kuen-Haur Lee
- Ph.D. Program for Cancer Molecular Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University and Academia Sinica, Taipei Medical University, Taipei 110301, Taiwan
- Graduate Institute of Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei 110301, Taiwan
| | - Hsin-Lun Lee
- Department of Radiation Oncology, Taipei Medical University Hospital, Taipei 110301, Taiwan
- Department of Radiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110301, Taiwan
- Taipei Cancer Center, Taipei Medical University, Taipei 110301, Taiwan
| | - Shang-Wen Chen
- Department of Radiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110301, Taiwan
- Department of Radiation Oncology, China Medical University Hospital, Taichung 404327, Taiwan
- Graduate Institute of Biomedical Sciences, School of Medicine, College of Medicine, China Medical University, Taichung 404333, Taiwan
| | - Jeng-Fong Chiou
- Ph.D. Program for Cancer Molecular Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University and Academia Sinica, Taipei Medical University, Taipei 110301, Taiwan
- Department of Radiation Oncology, Taipei Medical University Hospital, Taipei 110301, Taiwan
- Department of Radiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110301, Taiwan
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7
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Rodríguez Pérez A, Felip Font E, Chicas-Sett R, Montero-Luis Á, de Paz Arias L, González-Del-Alba A, López-Campos F, López López C, Hernando Requejo O, Conde-Moreno AJ, Arranz Arija JÁ, de Castro Carpeño J. Unravelling oligometastatic disease from the perspective of radiation and medical oncology. Part I: non-small cell lung cancer and breast cancer. Clin Transl Oncol 2023; 25:882-896. [PMID: 36525231 DOI: 10.1007/s12094-022-03011-6] [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: 07/29/2022] [Accepted: 11/08/2022] [Indexed: 12/23/2022]
Abstract
Oligometastatic disease (OMD) defines a cancer status that is intermediate between localized and widely spread metastatic disease, and can be treated with curative intent. While diagnostic imaging tools have considerably improved in recent years, unidentified micrometastases can still evade current detection techniques, allowing the disease to progress. The various OMD scenarios are mainly defined by the number of metastases, the biological and molecular tumour profiles, and the timing of the development of metastases. Increasing knowledge has contributed to the earlier and improved detection of OMD, underlining the importance of early disease control. In view of increasing OMD detection rates in current real-world clinical practice and the lack of standardized evidence-based guidelines to treat this cancer status, a board of experts from the Spanish Societies of Radiation Oncology (SEOR) and Medical Oncology (SEOM) organized a series of sessions to update the current state-of-the-art on OMD from a multidisciplinary perspective, and to discuss how results from clinical studies might translate into promising treatment options. This expert review series summarizes what is known and what it is pending clarification in the context of OMD in the scenarios of non-small cell lung cancer and breast cancer (Part I), and prostate cancer and colorectal cancer (Part II), aiming to offer specialists a pragmatic framework to help improve patient management.
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Affiliation(s)
- Aurora Rodríguez Pérez
- Radiation Oncology Department, Hospital Ruber Internacional, C. de La Masó, 38, 28034, Madrid, Spain.
| | - Enriqueta Felip Font
- Medical Oncology Department, Hospital Universitario del Vall d'Hebron, Barcelona, Spain
| | | | - Ángel Montero-Luis
- Radiation Oncology Department, Hospital Universitario HM Sanchinarro, Madrid, Spain
| | - Laura de Paz Arias
- Medical Oncology Department, Complejo Hospitalario Universitario de Ferrol, A Coruña, Spain
| | | | | | - Carlos López López
- Medical Oncology Department, Hospital Universitario Marqués de Valdecilla, IDIVAL, Santander, Spain
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8
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Stefanovic M, Calvet G, Pérez-Montero H, Esteve A, Bujalance MV, Navarro-Martín A, Fernández MDA, González FF, Borras SM, Borbalas AL, Fernandez MN, Garau MM, Calduch AL, Edo FG. Stereotactic body radiation therapy in the treatment of cancer patients with oligometastatic disease: a real world study. CLINICAL & TRANSLATIONAL ONCOLOGY : OFFICIAL PUBLICATION OF THE FEDERATION OF SPANISH ONCOLOGY SOCIETIES AND OF THE NATIONAL CANCER INSTITUTE OF MEXICO 2023; 25:199-206. [PMID: 36068449 DOI: 10.1007/s12094-022-02923-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Accepted: 08/05/2022] [Indexed: 01/07/2023]
Abstract
PURPOSE Stereotactic body radiation therapy (SBRT) is a treatment modality with curative intent for oligometastatic cancer patients, commonly defined by a low-burden metastatic disease with 1-5 systemic metastases. Better knowledge of the clinical profile and prognostic factors in oligometastatic cancer patients could help to improve the selection of candidates who may obtain most benefits from SBRT. The objective of this study was to describe the clinical data and outcome in term of overall survival (OS) of patients with oligometastatic disease treated with SBRT over a 6-year period. METHODS From 2013 to 2018, 284 solid tumor cancer patients with 1-5 oligometastases underwent SBRT at a large university-affiliated oncological center in Barcelona, Spain. Variables related to the patient profile, tumor, oligometastatic disease, and treatment were evaluated. RESULTS A total of 327 metastatic tumors were treated with SBRT. In 65.5% of cases, metachronous tumors were diagnosed at least 1 year after diagnosis of the primary tumor. The median age of the patients was 73.9 years and 66.5% were males. The median follow-up was 37.5 months. The most common primary tumors were lung and colorectal cancer, with lung and bone as the most commonly treated metastatic sites. Ninety-three percent of patients showed a Karnofsky score (KPS) between 80 and 100. Adenocarcinoma was the most common histological type. The median overall survival was 53.4 months, with 1-, 2- and 5-year survival rates of 90.5%, 73.9% and 43.4%, respectively. Overall survival rates of breast (67.6 months, 95% CI 56.4-78.9), urological (63.3 months, 95% CI 55.8-70.8), and colorectal (50.8 months, 95% CI 44.2-57.4) tumors were higher as compared with other malignancies (20 months, 95% CI 11.2-28.8 months) (p < 0.001). Patients with Karnofsky score (KPS) of 90 and 100 showed a significantly better survival than those with impaired performance status (p = 0.001). CONCLUSION SBRT appears to be well tolerated and safe approach in oligometastatic patients. Patients with good performance status and with primary breast, urological and colorectal cancer have higher OS compared with other malignancies. More studies are necessary to evaluate the prognostic factors in oligometastatic disease (OMD) in order to select patients who could benefit more from this therapeutic approach.
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Affiliation(s)
- Milica Stefanovic
- Radiation Oncology Department, Hospital Duran i Reynals, Institut Català d'Oncologia (ICO), Avinguda de la Gran Via de l'Hospitalet 199-203, L'Hospitalet de Llobregat, 08098, Barcelona, Spain. .,Radiobiology and Cancer Group, ONCOBELL Program, Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), Avinguda de la Gran Via de l'Hospitalet 199-203, L'Hospitalet de Llobregat, 08098, Barcelona, Spain.
| | - Gemma Calvet
- Radiation Oncology Department, Hospital Duran i Reynals, Institut Català d'Oncologia (ICO), Avinguda de la Gran Via de l'Hospitalet 199-203, L'Hospitalet de Llobregat, 08098, Barcelona, Spain
| | - Héctor Pérez-Montero
- Radiation Oncology Department, Hospital Duran i Reynals, Institut Català d'Oncologia (ICO), Avinguda de la Gran Via de l'Hospitalet 199-203, L'Hospitalet de Llobregat, 08098, Barcelona, Spain.,Radiobiology and Cancer Group, ONCOBELL Program, Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), Avinguda de la Gran Via de l'Hospitalet 199-203, L'Hospitalet de Llobregat, 08098, Barcelona, Spain
| | - Anna Esteve
- Badalona Applied Research Group in Oncology (B·ARGO), Oncology Data Analytics Program (ODAP), Institut Català d'Oncologia (ICO), Institut Català d'Oncologia (ICO Badalona), Hospital Universitari Germans Trias i Pujol, Carretera de Canyet s/n, Badalona, 08916, Barcelona, Spain
| | - Montse Ventura Bujalance
- Radiation Oncology Department, Hospital Duran i Reynals, Institut Català d'Oncologia (ICO), Avinguda de la Gran Via de l'Hospitalet 199-203, L'Hospitalet de Llobregat, 08098, Barcelona, Spain.,Radiobiology and Cancer Group, ONCOBELL Program, Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), Avinguda de la Gran Via de l'Hospitalet 199-203, L'Hospitalet de Llobregat, 08098, Barcelona, Spain
| | - Arturo Navarro-Martín
- Radiation Oncology Department, Hospital Duran i Reynals, Institut Català d'Oncologia (ICO), Avinguda de la Gran Via de l'Hospitalet 199-203, L'Hospitalet de Llobregat, 08098, Barcelona, Spain.,Radiobiology and Cancer Group, ONCOBELL Program, Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), Avinguda de la Gran Via de l'Hospitalet 199-203, L'Hospitalet de Llobregat, 08098, Barcelona, Spain.,Department of Clinical Sciences, University of Barcelona, Bellvitge Campus, Avinguda de la Gran Via de l'Hospitalet 199-203, L'Hospitalet de Llobregat, 08098, Barcelona, Spain
| | - Maria Dolores Arnaiz Fernández
- Radiation Oncology Department, Hospital Duran i Reynals, Institut Català d'Oncologia (ICO), Avinguda de la Gran Via de l'Hospitalet 199-203, L'Hospitalet de Llobregat, 08098, Barcelona, Spain
| | - Ferran Ferrer González
- Radiation Oncology Department, Hospital Duran i Reynals, Institut Català d'Oncologia (ICO), Avinguda de la Gran Via de l'Hospitalet 199-203, L'Hospitalet de Llobregat, 08098, Barcelona, Spain.,Radiobiology and Cancer Group, ONCOBELL Program, Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), Avinguda de la Gran Via de l'Hospitalet 199-203, L'Hospitalet de Llobregat, 08098, Barcelona, Spain.,Department of Clinical Sciences, University of Barcelona, Bellvitge Campus, Avinguda de la Gran Via de l'Hospitalet 199-203, L'Hospitalet de Llobregat, 08098, Barcelona, Spain
| | - Susanna Marin Borras
- Radiation Oncology Department, Hospital Duran i Reynals, Institut Català d'Oncologia (ICO), Avinguda de la Gran Via de l'Hospitalet 199-203, L'Hospitalet de Llobregat, 08098, Barcelona, Spain.,Department of Clinical Sciences, University of Barcelona, Bellvitge Campus, Avinguda de la Gran Via de l'Hospitalet 199-203, L'Hospitalet de Llobregat, 08098, Barcelona, Spain
| | - Alicia Lozano Borbalas
- Radiation Oncology Department, Hospital Duran i Reynals, Institut Català d'Oncologia (ICO), Avinguda de la Gran Via de l'Hospitalet 199-203, L'Hospitalet de Llobregat, 08098, Barcelona, Spain
| | - Miriam Nuñez Fernandez
- Radiation Oncology Department, Hospital Duran i Reynals, Institut Català d'Oncologia (ICO), Avinguda de la Gran Via de l'Hospitalet 199-203, L'Hospitalet de Llobregat, 08098, Barcelona, Spain.,Radiobiology and Cancer Group, ONCOBELL Program, Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), Avinguda de la Gran Via de l'Hospitalet 199-203, L'Hospitalet de Llobregat, 08098, Barcelona, Spain
| | - Miquel Macia Garau
- Radiation Oncology Department, Hospital Duran i Reynals, Institut Català d'Oncologia (ICO), Avinguda de la Gran Via de l'Hospitalet 199-203, L'Hospitalet de Llobregat, 08098, Barcelona, Spain.,Radiobiology and Cancer Group, ONCOBELL Program, Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), Avinguda de la Gran Via de l'Hospitalet 199-203, L'Hospitalet de Llobregat, 08098, Barcelona, Spain.,Department of Clinical Sciences, University of Barcelona, Bellvitge Campus, Avinguda de la Gran Via de l'Hospitalet 199-203, L'Hospitalet de Llobregat, 08098, Barcelona, Spain
| | - Anna Lucas Calduch
- Radiation Oncology Department, Hospital Duran i Reynals, Institut Català d'Oncologia (ICO), Avinguda de la Gran Via de l'Hospitalet 199-203, L'Hospitalet de Llobregat, 08098, Barcelona, Spain.,Radiobiology and Cancer Group, ONCOBELL Program, Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), Avinguda de la Gran Via de l'Hospitalet 199-203, L'Hospitalet de Llobregat, 08098, Barcelona, Spain
| | - Ferran Guedea Edo
- Radiation Oncology Department, Hospital Duran i Reynals, Institut Català d'Oncologia (ICO), Avinguda de la Gran Via de l'Hospitalet 199-203, L'Hospitalet de Llobregat, 08098, Barcelona, Spain.,Radiobiology and Cancer Group, ONCOBELL Program, Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), Avinguda de la Gran Via de l'Hospitalet 199-203, L'Hospitalet de Llobregat, 08098, Barcelona, Spain.,Department of Clinical Sciences, University of Barcelona, Bellvitge Campus, Avinguda de la Gran Via de l'Hospitalet 199-203, L'Hospitalet de Llobregat, 08098, Barcelona, Spain
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9
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Ferini G, Castorina P, Valenti V, Illari SI, Sachpazidis I, Castorina L, Marrale M, Pergolizzi S. A Novel Radiotherapeutic Approach to Treat Bulky Metastases Even From Cutaneous Squamous Cell Carcinoma: Its Rationale and a Look at the Reliability of the Linear-Quadratic Model to Explain Its Radiobiological Effects. Front Oncol 2022; 12:809279. [PMID: 35280772 PMCID: PMC8904747 DOI: 10.3389/fonc.2022.809279] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Accepted: 01/26/2022] [Indexed: 12/11/2022] Open
Abstract
Introduction Metastatic cutaneous squamous cell carcinoma (cSCC) is a very rare condition. The lack of definition of an oligometastatic subgroup means that there is no consensus for its treatment, unlike the mucosal head and neck counterpart. Like the latter, the cutaneous form is able to develop bulky tumor masses. When this happens, the classic care approach is just for palliative intent due to a likely unfavorable benefit–risk balance typical of aggressive treatments. Here we proposed a novel radiotherapy (RT) technique to treat bulky metastases from cSCC in the context of an overall limited tumor burden and tried to explain its clinical outcome by the currently available mathematical radiobiological and ad hoc developed models. Methods We treated a case of facial cSCC with three metastases: two of them by classic stereotactic RT and the other by lattice RT supported by metabolic imaging (18F-FDG PET) due to its excessively large dimensions. For the latter lesion, we compared four treatment plans with different RT techniques in order to define the best approach in terms of normal tissue complication probability (NTCP) and tumor control probability (TCP). Moreover, we developed an ad hoc mathematical radiobiological model that could fit better with the characteristics of heterogeneity of this bulky metastasis for which, indeed, a segmentation of normoxic, hypoxic, and necrotic subvolumes might have been assumed. Results We observed a clinical complete response in all three disease sites; the bulky metastasis actually regressed more rapidly than the other two treated by stereotactic RT. For the large lesion, NTCP predictions were good for all four different plans but even significantly better for the lattice RT plan. Neither the classic TCP nor the ad hoc developed radiobiological models could be totally adequate to explain the reported outcome. This finding might support a key role of the host immune system. Conclusions PET-guided lattice RT might be safe and effective for the treatment of bulky lesions from cSCC. There might be some need for complex mathematical radiobiological models that are able to take into account any immune system’s role in order to explain the possible mechanisms of the tumor response to radiation and the relevant key points to enhance it.
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Affiliation(s)
- Gianluca Ferini
- Department of Radiation Oncology, REM Radioterapia srl, Viagrande, Italy
| | - Paolo Castorina
- Istituto Oncologico del Mediterraneo, Viagrande, Italy.,Faculty of Mathematics and Physics, Charles University, Prague, Czechia.,Istituto Nazionale Fisica Nucleare, Catania, Italy
| | - Vito Valenti
- Department of Radiation Oncology, REM Radioterapia srl, Viagrande, Italy
| | | | - Ilias Sachpazidis
- Department of Radiation Oncology, Division of Medical Physics, Medical Centre, Faculty of Medicine, University of Freiburg, Freiburg, Germany.,Department of Research & Development, Medical Innovation and Technology P. C., Mesolongi, Greece
| | - Luigi Castorina
- Department of Radiation Oncology, REM Radioterapia srl, Viagrande, Italy
| | - Maurizio Marrale
- Department of Physics and Chemistry, "Emilio Segrè" ATeN Center, University of Palermo, Palermo, Italy.,Istituto Nazionale di Fisica Nucleare (INFN), Sezione di Catania, Catania, Italy
| | - Stefano Pergolizzi
- Dipartimento di Scienze Biomediche, Odontoiatriche e delle Immagini Morfologiche e Funzionali Università di Messina, Messina, Italy
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10
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Results of Radiation Therapy as Local Ablative Therapy for Oligometastatic Non-Small Cell Lung Cancer. Cancers (Basel) 2021; 13:cancers13225773. [PMID: 34830925 PMCID: PMC8616303 DOI: 10.3390/cancers13225773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 11/15/2021] [Accepted: 11/16/2021] [Indexed: 11/16/2022] Open
Abstract
Oligometastatic cancer is characterized by a limited number of metastatic deposits. Compared with lung cancer patients who have more widespread disease, oligometastatic lung cancer patients have more favorable survival outcomes. Therefore, it has been hypothesized that local ablative therapy (LAT) directed at the metastatic deposits in addition to standard-of-care systemic therapy may further improve survival outcomes in oligometastatic lung cancer patients. One LAT modality that has been utilized in oligometastatic lung cancer is radiation therapy. In particular, ultra-hypofractionated radiotherapy, also known as stereotactic body radiotherapy (SBRT), has been shown to provide excellent local control with a favorable safety profile. Here, we reviewed the retrospective studies and prospective trials that have deployed radiation therapy as LAT in oligometastatic lung cancer, including randomized studies showing benefits for progression-free survival and overall survival with the addition of LAT. We also discuss the impact of targeted therapies and immunotherapy on radiation as LAT.
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11
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Scarborough JA, Tom MC, Kattan MW, Scott JG. Revisiting a Null Hypothesis: Exploring the Parameters of Oligometastasis Treatment. Int J Radiat Oncol Biol Phys 2021; 110:371-381. [PMID: 33484786 PMCID: PMC8122026 DOI: 10.1016/j.ijrobp.2020.12.044] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 12/23/2020] [Accepted: 12/28/2020] [Indexed: 12/25/2022]
Abstract
PURPOSE In the treatment of patients with metastatic cancer, the current paradigm states that metastasis-directed therapy does not prolong life. This paradigm forms the basis of clinical trial null hypotheses, where trials are built to test the null hypothesis that patients garner no overall survival benefit from targeting metastatic lesions. However, with advancing imaging technology and increasingly precise techniques for targeting lesions, a much larger proportion of metastatic disease can be treated. As a result, the life-extending benefit of targeting metastatic disease is becoming increasingly clear. METHODS AND MATERIALS In this work, we suggest shifting this qualitative null hypothesis and describe a mathematical model that can be used to frame a new, quantitative null. We begin with a very simple formulation of tumor growth, an exponential function, and illustrate how the same intervention (removing a given number of cells from the tumor) at different times affects survival. Additionally, we postulate where recent clinical trials fit into this parameter space and discuss the implications of clinical trial design in changing these quantitative parameters. RESULTS Our model shows that although any amount of cell kill will extend survival, in many cases the extent is so small as to be unnoticeable in a clinical context or is outweighed by factors related to toxicity and treatment time. CONCLUSIONS Recasting the null in these quantitative terms will allow trialists to design trials specifically to increase understanding of the circumstances (patient selection, disease burden, tumor growth kinetics) that can lead to improved overall survival when targeting metastatic lesions, rather than whether targeting metastases extends survival for patients with (oligo-) metastatic disease.
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Affiliation(s)
- Jessica A Scarborough
- Translational Hematology and Oncology Research, Cleveland Clinic, Cleveland, Ohio; Systems Biology and Bioinformatics Program, Department of Nutrition, Case Western Reserve School of Medicine, Cleveland, Ohio
| | - Martin C Tom
- Department of Radiation Oncology, Miami Cancer Institute, Baptist Health South Florida, Miami, Florida
| | - Michael W Kattan
- Department of Quantitative Health Sciences, Cleveland Clinic, Cleveland, Ohio
| | - Jacob G Scott
- Translational Hematology and Oncology Research, Cleveland Clinic, Cleveland, Ohio; Systems Biology and Bioinformatics Program, Department of Nutrition, Case Western Reserve School of Medicine, Cleveland, Ohio; Department of Radiation Oncology, Cleveland Clinic, Cleveland, Ohio.
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12
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Conformal Avoidance of Normal Organs at Risk by Perfusion-Modulated Dose Sculpting in Tumor Single-Dose Radiation Therapy. Int J Radiat Oncol Biol Phys 2020; 109:288-297. [PMID: 32777335 DOI: 10.1016/j.ijrobp.2020.08.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 07/02/2020] [Accepted: 08/03/2020] [Indexed: 12/31/2022]
Abstract
PURPOSE Although 24 Gy single-dose radiation therapy (SDRT) renders >90% 5-year local relapse-free survival in human solid tumor lesions, SDRT delivery is not feasible in ∼50% of oligometastatic lesions owing to interference by dose/volume constraints of a serial organ at risk (OAR). Conformal OAR avoidance is based on a hypothetical model positing that the recently described SDRT biology specifically permits volumetric subdivision of the SDRT dose, such that high-intensity vascular drivers of SDRT lethality, generated within a major tumor subvolume exposed to a high 24 Gy dose (high-dose planning target volume [PTVHD]), would equilibrate SDRT signaling intensity throughout the tumor interstitial space, rendering bystander radiosensitization of a minor subvolume (perfusion-modulated dose sculpting PTV [PTVPMDS]), dose-sculpted to meet a serial OAR dose/volume constraint. An engineered PTVPMDS may thus yield tumor ablation despite PMDS dose reduction and conformally avoiding OAR exposure to a toxic dose. METHODS AND MATERIALS Dose fall-off within the PTVPMDS penumbra of oligometastatic lesions was planned and delivered by intensity modulated inverse dose painting. SDRT- and SDRT-PMDS-treated lesions were followed with periodic positron emission tomography/computed tomography imaging to assess local tumor control. RESULTS Cumulative baseline 5-year local relapse rates of oligometastases treated with 24 Gy SDRT alone (8% relapses, n = 292) were similar in moderate PTVPMDS dose-sculpted (23-18 Gy, n = 76, 11% relapses, P = .36) and extreme dose-sculpted (<18 Gy, n = 61, 14% relapses, P = .29) lesions, provided the major 24 Gy PTVHD constituted ≥60% of the total PTV. In contrast, 28% of local relapses occurred in 26 extreme dose-sculpted PTVPMDS lesions when PTVHD constituted <60% of the total PTV (P = .004), suggesting a threshold for the PTVPMDS bystander effect. CONCLUSION The study provides compelling clinical support for the bystander radiosensitization hypothesis, rendering local cure of tumor lesions despite a ≥25% PTVPMDS dose reduction of the 24 Gy PTVHD dose, adapted to conformally meet OAR dose/volume constraints. The SDRT-PMDS approach thus provides a therapeutic resolution to otherwise radioablation-intractable oligometastatic disease.
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13
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Wang H, Li X, Peng R, Wang Y, Wang J. Stereotactic ablative radiotherapy for colorectal cancer liver metastasis. Semin Cancer Biol 2020; 71:21-32. [PMID: 32629077 DOI: 10.1016/j.semcancer.2020.06.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 06/23/2020] [Accepted: 06/25/2020] [Indexed: 12/24/2022]
Abstract
Survival improvement of colorectal liver metastasis (CRLM) benefits from systemic therapy and metastasis-directed local therapy. Stereotactic ablative body radiotherapy (SABR), as a new efficient metastasis-directed local therapy with a systematic impact, plays a vital role in CRLM multidisciplinary treatment. SABR leads to a dramatic immunological change in the tumor microenvironment (TME) via differential activation of cytoprotective and cytotoxic pathways in malignant and non-malignant cells, in addition to direct tumor cell death. The synergy of SABR and immunotherapy might increase the abscopal response rate of out-field lesions by targeting different steps of the immune-mediated response, in addition to direct intratumoral cell death. The clinical treatment and efficacy of SABR, its influence on TME, and potential molecular underpinnings of which are the topic of this review.
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Affiliation(s)
- Hao Wang
- Department of Radiation Oncology, Peking University Third Hospital, 49 North Garden Road, Beijing, 100191, China
| | - Xuemin Li
- Department of Radiation Oncology, Peking University Third Hospital, 49 North Garden Road, Beijing, 100191, China
| | - Ran Peng
- Department of Radiation Oncology, Peking University Third Hospital, 49 North Garden Road, Beijing, 100191, China
| | - Yuxia Wang
- Department of Radiation Oncology, Peking University Third Hospital, 49 North Garden Road, Beijing, 100191, China
| | - Junjie Wang
- Department of Radiation Oncology, Peking University Third Hospital, 49 North Garden Road, Beijing, 100191, China.
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