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Leonhardt CS, Stamm T, Hank T, Prager G, Strobel O. Defining oligometastatic pancreatic cancer: a systematic review and critical synthesis of consensus. ESMO Open 2023; 8:102067. [PMID: 37988953 PMCID: PMC10774968 DOI: 10.1016/j.esmoop.2023.102067] [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: 08/05/2023] [Accepted: 10/14/2023] [Indexed: 11/23/2023] Open
Abstract
BACKGROUND Small retrospective series suggest that local consolidative treatment (LCT) may improve survival in oligometastatic pancreatic ductal adenocarcinoma (PDAC). However, no uniform definition of oligometastatic disease (OMD) in PDAC exists; this impedes meaningful conclusions. PATIENTS AND METHODS A systematic literature search using PubMed, Web of Science, and Cochrane CENTRAL registries for studies and protocols reporting on definitions and/or LCT of OMD in PDAC was performed. The primary endpoint was the definition of OMD. Levels of agreement were categorized as consensus (≥75% agreement between studies), fair agreement (50%-74%), and absent/poor agreement (<50%). RESULTS After screening of 5374 abstracts, the full text of 218 studies was assessed, of which 76 were included in the qualitative synthesis. The majority of studies were retrospective (n = 66, 87%), two were prospective studies and eight were study protocols. Studies investigated mostly liver (n = 38, 51%) and lung metastases (n = 15, 20%). Across studies, less than one-half (n = 32, 42%) reported a definition of OMD, while 44 (58%) did not. Involvement was limited to a single organ (consensus). Additional criteria for defining OMD were the number of lesions (consensus), metastatic site (poor agreement), metastatic size (poor agreement), treatment possibilities (poor agreement), and biomarker response (poor agreement). Liver OMD could involve three or fewer lesions (consensus) and synchronous disease (fair agreement), while lung metastases could involve two or fewer lesions and metachronous disease (consensus). The large majority of studies were at a high risk of bias or did not include any control groups. CONCLUSION Definitions of OMD were not used or varied widely between studies hampering across-study comparability and highlighting an unmet need for a consensus. The present study is part of a multistep process that aims to develop an interdisciplinary consensus on OMD in pancreatic cancer.
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Affiliation(s)
- C-S Leonhardt
- Department of General Surgery, Division of Visceral Surgery, Medical University of Vienna, Vienna
| | - T Stamm
- Institute of Outcomes Research, Center for Medical Data Science, Medical University of Vienna; Ludwig Boltzmann Institute for Arthritis and Rehabilitation, Vienna
| | - T Hank
- Department of General Surgery, Division of Visceral Surgery, Medical University of Vienna, Vienna
| | - G Prager
- Department of Medicine I, Division of Oncology, Medical University of Vienna, Vienna, Austria
| | - O Strobel
- Department of General Surgery, Division of Visceral Surgery, Medical University of Vienna, Vienna.
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2
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Frountzas M, Schizas D, Kykalos S, Toutouzas KG. "Oligometastatic pancreatic cancer" definition: The first step. Hepatobiliary Pancreat Dis Int 2023; 22:645-647. [PMID: 35853803 DOI: 10.1016/j.hbpd.2022.07.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Accepted: 07/01/2022] [Indexed: 02/05/2023]
Affiliation(s)
- Maximos Frountzas
- First Propaedeutic Department of Surgery, Hippocration General Hospital, National and Kapodistrian University of Athens, School of Medicine, Athens, Greece.
| | - Dimitrios Schizas
- First Department of Surgery, Laikon General Hospital, National and Kapodistrian University of Athens, School of Medicine, Athens, Greece
| | - Stylianos Kykalos
- Second Department of Propaedeutic Surgery, Laikon General Hospital, National and Kapodistrian University of Athens, School of Medicine, Athens, Greece
| | - Konstantinos G Toutouzas
- First Propaedeutic Department of Surgery, Hippocration General Hospital, National and Kapodistrian University of Athens, School of Medicine, Athens, Greece
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3
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Oligometastatic Disease and Interventional Oncology: Rationale and Research Directions. ACTA ACUST UNITED AC 2021; 26:166-173. [PMID: 32205542 DOI: 10.1097/ppo.0000000000000442] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Oligometastatic disease (OMD) is generally defined as a stage of clinically or radiographically demonstrated metastatic disease limited in total disease burden and without rapid spread. Interventional oncology performs local therapies for primary and metastatic cancers, including OMD. Interventional oncology treatments can be pursued both as definitive therapy and for palliative purposes. Applied to OMD, these interventions can offer patients a decreasing overall tumor burden, minimizing cancer morbidity, and early evidence suggests a survival benefit. Here, we discuss the range of interventional oncology treatments, including ablation, chemoembolization, radioembolization, and irreversible electroporation. We describe the rationale for their application to OMD and discuss future directions for research.
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Timmer FEF, Geboers B, Nieuwenhuizen S, Schouten EAC, Dijkstra M, de Vries JJJ, van den Tol MP, Meijerink MR, Scheffer HJ. Locoregional Treatment of Metastatic Pancreatic Cancer Utilizing Resection, Ablation and Embolization: A Systematic Review. Cancers (Basel) 2021; 13:cancers13071608. [PMID: 33807220 PMCID: PMC8036519 DOI: 10.3390/cancers13071608] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 03/20/2021] [Accepted: 03/25/2021] [Indexed: 02/07/2023] Open
Abstract
Simple Summary Metastatic pancreatic ductal adenocarcinoma (mPDAC) has a dismal prognosis. In selected patients with limited metastatic disease, locoregional therapy, in addition to systemic chemotherapy, may improve survival. This systematic review sought to examine current evidence on the value of additional locoregional treatment, including resection, ablation and embolization, in patients with hepatic or pulmonary mPDAC. The results, although liable to substantial bias, demonstrated superior survival from metastatic diagnosis or treatment in a subset of patients after radical-intent local primary and metastatic treatment (hepatic mPDAC 7.8–19 months; pulmonary mPDAC 22.8–47 months) compared to chemotherapy or best supportive care (hepatic mPDAC 4.3–7.6 months; pulmonary mPDAC 11.8 months). However, as a consequence of the bias, definitive conclusions regarding the seemingly beneficial effect of locoregional treatment cannot be endorsed. Randomized controlled trials with strictly selected oligometastatic PDAC patients are required to deduce final recommendations on this notion. Abstract The prognosis of metastatic pancreatic ductal adenocarcinoma (mPDAC) remains universally poor, requiring new and innovative treatment approaches. In a subset of oligometastatic PDAC patients, locoregional therapy, in addition to systemic chemotherapy, may improve survival. The aim of this systematic review was to explore and evaluate the current evidence on locoregional treatments for mPDAC. A systematic literature search was conducted on locoregional techniques, including resection, ablation and embolization, for mPDAC with a focus on hepatic and pulmonary metastases. A total of 59 studies were identified, including 63,453 patients. Although subject to significant bias, radical-intent local therapy for both the primary and metastatic sites was associated with a superior median overall survival from metastatic diagnosis or treatment (hepatic mPDAC 7.8–19 months; pulmonary mPDAC 22.8–47 months) compared to control groups receiving chemotherapy or best supportive care (hepatic mPDAC 4.3–7.6 months; pulmonary mPDAC 11.8 months). To recruit patients that may benefit from these local treatments, selection appears essential. Most significant is the upfront possibility of local radical pancreatic and metastatic treatment. In addition, a patient’s response to neoadjuvant systemic chemotherapy, performance status, metastatic disease load and, to a lesser degree, histological differentiation grade and tumor marker CA19-9 serum levels, are powerful prognostic factors that help identify eligible subjects. Although the exact additive value of locoregional treatments for mPDAC patients cannot be distillated from the results, locoregional primary pancreatic and metastatic treatment seems beneficial for a highly selected group of oligometastatic PDAC patients. For definite recommendations, well-designed prospective randomized controlled trials with strict in- and exclusion criteria are needed to validate these results.
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Affiliation(s)
- Florentine E. F. Timmer
- Department of Radiology and Nuclear Medicine, Amsterdam University Medical Centers (Location VUmc), De Boelelaan 1117, 1081 HV Amsterdam, The Netherlands; (B.G.); (S.N.); (E.A.C.S.); (M.D.); (J.J.J.d.V.); (M.R.M.); (H.J.S.)
- Correspondence: ; Tel.: +31-20-444-4571
| | - Bart Geboers
- Department of Radiology and Nuclear Medicine, Amsterdam University Medical Centers (Location VUmc), De Boelelaan 1117, 1081 HV Amsterdam, The Netherlands; (B.G.); (S.N.); (E.A.C.S.); (M.D.); (J.J.J.d.V.); (M.R.M.); (H.J.S.)
| | - Sanne Nieuwenhuizen
- Department of Radiology and Nuclear Medicine, Amsterdam University Medical Centers (Location VUmc), De Boelelaan 1117, 1081 HV Amsterdam, The Netherlands; (B.G.); (S.N.); (E.A.C.S.); (M.D.); (J.J.J.d.V.); (M.R.M.); (H.J.S.)
| | - Evelien A. C. Schouten
- Department of Radiology and Nuclear Medicine, Amsterdam University Medical Centers (Location VUmc), De Boelelaan 1117, 1081 HV Amsterdam, The Netherlands; (B.G.); (S.N.); (E.A.C.S.); (M.D.); (J.J.J.d.V.); (M.R.M.); (H.J.S.)
| | - Madelon Dijkstra
- Department of Radiology and Nuclear Medicine, Amsterdam University Medical Centers (Location VUmc), De Boelelaan 1117, 1081 HV Amsterdam, The Netherlands; (B.G.); (S.N.); (E.A.C.S.); (M.D.); (J.J.J.d.V.); (M.R.M.); (H.J.S.)
| | - Jan J. J. de Vries
- Department of Radiology and Nuclear Medicine, Amsterdam University Medical Centers (Location VUmc), De Boelelaan 1117, 1081 HV Amsterdam, The Netherlands; (B.G.); (S.N.); (E.A.C.S.); (M.D.); (J.J.J.d.V.); (M.R.M.); (H.J.S.)
| | - M. Petrousjka van den Tol
- Department of Surgery, Amsterdam University Medical Centers (Location VUmc), De Boelelaan 1117, 1081 HV Amsterdam, The Netherlands;
| | - Martijn R. Meijerink
- Department of Radiology and Nuclear Medicine, Amsterdam University Medical Centers (Location VUmc), De Boelelaan 1117, 1081 HV Amsterdam, The Netherlands; (B.G.); (S.N.); (E.A.C.S.); (M.D.); (J.J.J.d.V.); (M.R.M.); (H.J.S.)
| | - Hester J. Scheffer
- Department of Radiology and Nuclear Medicine, Amsterdam University Medical Centers (Location VUmc), De Boelelaan 1117, 1081 HV Amsterdam, The Netherlands; (B.G.); (S.N.); (E.A.C.S.); (M.D.); (J.J.J.d.V.); (M.R.M.); (H.J.S.)
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De Simoni O, Scarpa M, Tonello M, Pilati P, Tolin F, Spolverato Y, Gruppo M. Oligometastatic Pancreatic Cancer to the Liver in the Era of Neoadjuvant Chemotherapy: Which Role for Conversion Surgery? A Systematic Review and Meta-Analysis. Cancers (Basel) 2020; 12:cancers12113402. [PMID: 33213022 PMCID: PMC7698586 DOI: 10.3390/cancers12113402] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 11/03/2020] [Accepted: 11/14/2020] [Indexed: 01/05/2023] Open
Abstract
Simple Summary The development of new polychemotherapy regimens in patients with metastatic pancreatic cancer (mPDAC) have demonstrated significant improvement in clinical outcome, but evidence of the role of surgery following a favorable response to initial chemotherapy (IC) is still poor. The aim of the study is to analyze the impact of surgery following IC on survival in mPDAC, focusing on oligometastatic disease to the liver. Data retrieved from available literature confirm increased survival in selected oligometastatic patients treated with surgery + IC compared to IC alone (23–56 months vs. 11–16.4 months), suggesting a potential role for conversion surgery in a tailored and multimodality approach to pancreatic cancer patients. Better knowledge of tumor biology and a wide consensus on diagnostic criteria could lead to the consideration of oligometastatic disease as a particular and different stage of disease. Abstract Background: the improved survival rates achieved using new polychemotherapy regimens in patients with metastatic pancreatic cancer (mPDAC) have suggested a potential role for surgery following a favorable response to initial chemotherapy (IC). The purpose of this systematic review is to summarize the available evidence on the role of surgery following IC in mPDAC, focusing on oligometastatic disease to the liver (lmPDAC). Methods: studies reporting on patients with lmPDAC undergoing surgery after IC were included. The main outcome was overall survival (OS). Results: six observational retrospective studies were included in the qualitative analysis. Data were retrieved on 2087 patients. The most common IC regimen in patients undergoing surgery was FOLFIRINOX (N 84, 73%). Only three studies reported survival comparison among patients treated with IC+surgery vs. IC alone. Median OS varied from 23 to 56 months after conversion surgery vs. 11 to 16.4 months after IC alone. Conclusions: despite wide heterogeneity of chemotherapy regimens, different downstaging criteria and potential selection biases, patients with oligometastatic lmPDAC undergoing surgery after IC have significantly higher survival rates compared to patients treated with IC alone. Future trials are needed for definition of univocal criteria of downstaging, oligometastatic definition and indications for surgery.
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Affiliation(s)
- Ottavia De Simoni
- Unit of Surgical Oncology of the Esophagus and Digestive Tract, Veneto Institute of Oncology IOV-IRCCS, via Gattamelata, 64-35128 Padova, Italy; (O.D.S.); (M.T.); (P.P.); (F.T.)
| | - Marco Scarpa
- Department of Surgery, Oncology and Gastroenterology, University Hospital of Padua, via Giustiniani, 2-35128 Padova, Italy; (M.S.); (Y.S.)
| | - Marco Tonello
- Unit of Surgical Oncology of the Esophagus and Digestive Tract, Veneto Institute of Oncology IOV-IRCCS, via Gattamelata, 64-35128 Padova, Italy; (O.D.S.); (M.T.); (P.P.); (F.T.)
| | - Pierluigi Pilati
- Unit of Surgical Oncology of the Esophagus and Digestive Tract, Veneto Institute of Oncology IOV-IRCCS, via Gattamelata, 64-35128 Padova, Italy; (O.D.S.); (M.T.); (P.P.); (F.T.)
| | - Francesca Tolin
- Unit of Surgical Oncology of the Esophagus and Digestive Tract, Veneto Institute of Oncology IOV-IRCCS, via Gattamelata, 64-35128 Padova, Italy; (O.D.S.); (M.T.); (P.P.); (F.T.)
| | - Ylenia Spolverato
- Department of Surgery, Oncology and Gastroenterology, University Hospital of Padua, via Giustiniani, 2-35128 Padova, Italy; (M.S.); (Y.S.)
| | - Mario Gruppo
- Unit of Surgical Oncology of the Esophagus and Digestive Tract, Veneto Institute of Oncology IOV-IRCCS, via Gattamelata, 64-35128 Padova, Italy; (O.D.S.); (M.T.); (P.P.); (F.T.)
- Correspondence:
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Ma YY, Shi JJ, Chen JB, Xu KC, Niu LZ. Irreversible electroporation for liver metastasis from pancreatic cancer: A case report. World J Clin Cases 2020; 8:390-397. [PMID: 32047790 PMCID: PMC7000941 DOI: 10.12998/wjcc.v8.i2.390] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 12/23/2019] [Accepted: 01/01/2020] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Pancreatic cancer has a poor prognosis; 40%–50% of patients have liver metastases at the time of initial diagnosis and only 15%–20% undergo surgical resection. Irreversible electroporation (IRE) is a new, non-thermal local ablation method for solid tumors, which can induce cell membrane permeabilization, resulting in unrecoverable nanoscale perforation and apoptotic cell death without damaging the structural components of tissues.
CASE SUMMARY We report the case of a 66-year-old female patient with liver metastasis from pancreatic cancer with a pathological diagnosis of poorly differentiated adenocarcinoma. Carbohydrate antigen 19-9 was elevated to 420.3 U/mL. Computed tomography showed a pancreas mass of 2.7 cm × 2.5 cm and single liver metastasis of 1.4 cm × 1.1 cm in the S6 area. The patient underwent IRE and arterial infusion chemotherapy and received tegafur. The therapeutic effect of the combination treatment has been evaluated as complete response. To date, the patient has survived for > 12 mo and is receiving tegafur as maintenance therapy (at the time this case report was written).
CONCLUSION IRE plus arterial infusion chemotherapy and tegafur may be synergistic, providing a reference for treating liver metastasis from pancreatic cancer.
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Affiliation(s)
- Yang-Yang Ma
- Central Laboratory, Fuda Cancer Hospital, Jinan University, Guangzhou 510665, Guangdong Province, China
| | - Juan-Juan Shi
- Department of Oncology, Fuda Cancer Hospital, Jinan University, Guangzhou 510665, Guangdong Province, China
| | - Ji-Bing Chen
- Central Laboratory, Fuda Cancer Hospital, Jinan University, Guangzhou 510665, Guangdong Province, China
| | - Ke-Chen Xu
- Department of Oncology, Fuda Cancer Hospital, Jinan University, Guangzhou 510665, Guangdong Province, China
| | - Li-Zhi Niu
- Department of Oncology, Fuda Cancer Hospital, Jinan University, Guangzhou 510665, Guangdong Province, China
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Perrodin S, Lachenmayer A, Maurer M, Kim-Fuchs C, Candinas D, Banz V. Percutaneous stereotactic image-guided microwave ablation for malignant liver lesions. Sci Rep 2019; 9:13836. [PMID: 31554853 PMCID: PMC6761186 DOI: 10.1038/s41598-019-50159-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Accepted: 09/03/2019] [Indexed: 01/23/2023] Open
Abstract
Thermal ablation has proven beneficial for hepatocellular carcinoma and possibly for colorectal liver metastases, but data is lacking for other liver metastases. Computer-assisted navigation can increase ablation efficacy and broaden its indications. We present our experience with percutaneous stereotactic image-guided microwave ablation (SMWA) for non-colorectal liver metastases (NCRLM), in form of a retrospective study including all SMWA for NCRLM from 2015 to 2017. Indication for SMWA was determined at a multidisciplinary tumorboard. End-points include recurrence, overall and liver-specific disease progression and complications. Twenty-three patients underwent 25 interventions for 40 lesions, including 17 neuroendocrine tumor, nine breast cancer, four sarcoma, two non-small cell lung cancer, three duodenal adenocarcinoma, one esophageal adenocarcinoma, one pancreatic adenocarcinoma, one ampullary carcinoma, one prostate carcinoma, and one renal cell carcinoma metastases. Median follow-up was 15 months (2-32). Incomplete ablation rate was 2.5% (1/40), local recurrence rate 10% (4/40). Three patients (12%) had minor complications. Overall disease progression was 73.9% (17/23), median disease-free survival 7 months (0-26) and overall survival 18 months (2-39). SIMWA is feasible, safe and minimally invasive for NCRLM in selected patients. While it might offer an alternative to resection or palliative strategies, the oncological benefit needs to be evaluated in a larger patient cohort.
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Affiliation(s)
- Stéphanie Perrodin
- Department of Visceral Surgery and Medicine, Inselspital, Bern University Hospital and University of Bern, Bern, Switzerland
| | - Anja Lachenmayer
- Department of Visceral Surgery and Medicine, Inselspital, Bern University Hospital and University of Bern, Bern, Switzerland
| | - Martin Maurer
- Department of Radiology, Inselspital, Bern University Hospital and University of Bern, Bern, Switzerland
| | - Corina Kim-Fuchs
- Department of Visceral Surgery and Medicine, Inselspital, Bern University Hospital and University of Bern, Bern, Switzerland
| | - Daniel Candinas
- Department of Visceral Surgery and Medicine, Inselspital, Bern University Hospital and University of Bern, Bern, Switzerland
| | - Vanessa Banz
- Department of Visceral Surgery and Medicine, Inselspital, Bern University Hospital and University of Bern, Bern, Switzerland.
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8
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Surgery or Locoregional Approaches for Hepatic Oligometastatic Pancreatic Cancer: Myth, Hope, or Reality? Cancers (Basel) 2019; 11:cancers11081095. [PMID: 31374916 PMCID: PMC6721290 DOI: 10.3390/cancers11081095] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 07/27/2019] [Accepted: 07/28/2019] [Indexed: 12/15/2022] Open
Abstract
Despite extensive research, pancreatic ductal adenocarcinoma (PDAC) remains a difficult-to-treat cancer associated with poor survival. Due to the known aggressive disease biology, palliative chemotherapy is the only routinely recommended treatment in the metastatic setting in patients with adequate performance status. However, in a subset of patients with oligometastatic disease, multimodality treatment with surgery and/or locoregional approaches may provide long-term disease control and prolong survival. In fact, in highly selected cases, median overall survival has been reported to extend to 56 months in patients treated with surgery. In particular, liver and extraregional nodal resections may provide long-term tumor control with acceptable morbidity. Current guidelines do not recommend surgery for patients with metastatic PDAC and, in the case of PDAC with oligometastases, there are no published randomized controlled trials regarding locoregional or surgical approaches. Here we review the literature on surgical and locoregional approaches including radiofrequency ablation, irreversible electroporation, and stereotactic body radiation, and focus on patients with hepatic oligometastatic pancreatic cancer. We provide a summary regarding survival outcomes, morbidity and mortality and discuss selection criteria that may be useful to predict the best outcomes for such strategies.
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Shi W, Jiang R, Liang F, Yu G, Long J, Zhao J. Definitive chemoradiotherapy and salvage chemotherapy for patients with isolated locoregional recurrence after radical resection of primary pancreatic cancer. Cancer Manag Res 2019; 11:5065-5073. [PMID: 31213918 PMCID: PMC6549434 DOI: 10.2147/cmar.s202543] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Accepted: 05/16/2019] [Indexed: 12/14/2022] Open
Abstract
Purpose: The objective of this study was to analyze the safety and efficacy of definitive chemoradiotherapy and salvage chemotherapy in pancreatic cancer (PC) patients with isolated locoregional recurrence after radical resection and assess the factors associated with tumor response. Patients and methods: A retrospective study of isolated locoregional recurrent PC patients who were treated with definitive chemoradiotherapy and salvage chemotherapy at our institution between 2012 and 2017 was conducted. Medium dose of 56.0 Gy (range: 54.0 Gy - 60.2 Gy) in 1.8 Gy to 2.15 Gy daily fractions was prescribed to the PTV-G and 50.4 Gy was prescribed to the PTV-C. Patients received chemotherapy before, at the same time with or after radiotherapy. The overall survival (OS) and freedom from locoregional progression (FFLP) rates were estimated by the Kaplan-Meier method, and the log-rank test was performed to compare survival curves. The Cox regression was used to identify factors affecting response to treatment and survival. Results: Thirty-one patients were included. The median interval from the resection of primary PC to the diagnosis of the locoregional recurrence (DFI) was 7.4 months (range 0.2-44.6). Within a median follow-up from the start of radiotherapy (RT) of 31.7 months (95% CI: 20.0-43.5 months), the medium OS and FFLP rates from the start of RT were 23.6 and 12.0 months, respectively. DFI >6 months was shown to be a significant factor associated with favorable OS. Acute and late toxicity of grade 3 occurred in 3 patients (9.7%) and 1 patient (3.2%) respectively. No grade 4 toxicity or higher occurred. Conclusions: This single-institution retrospective analysis identified definitive chemoradiotherapy and salvage chemotherapy to be a feasible and tolerable treatment strategy for patients with isolated locoregional recurrence after radical resection of primary PC.
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Affiliation(s)
- Wei Shi
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, People's Republic of China.,Department of Oncology, Shanghai Medical College, Shanghai, People's Republic of China
| | - Rui Jiang
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, People's Republic of China.,Department of Oncology, Shanghai Medical College, Shanghai, People's Republic of China
| | - Fei Liang
- Clinical Statistic Center, Shanghai Cancer Center and Shanghai Medical College, Fudan University, Shanghai, People's Republic of China
| | - Genhua Yu
- Department of Radiation Oncology, Zhebei Mingzhou Hospital, Huzhou City, Zhejiang Province, People's Republic of China
| | - Jiang Long
- Department of Oncology, Shanghai Medical College, Shanghai, People's Republic of China.,Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, People's Republic of China
| | - Jiandong Zhao
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, People's Republic of China.,Department of Oncology, Shanghai Medical College, Shanghai, People's Republic of China
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10
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Ringel-Scaia VM, Beitel-White N, Lorenzo MF, Brock RM, Huie KE, Coutermarsh-Ott S, Eden K, McDaniel DK, Verbridge SS, Rossmeisl JH, Oestreich KJ, Davalos RV, Allen IC. High-frequency irreversible electroporation is an effective tumor ablation strategy that induces immunologic cell death and promotes systemic anti-tumor immunity. EBioMedicine 2019; 44:112-125. [PMID: 31130474 PMCID: PMC6606957 DOI: 10.1016/j.ebiom.2019.05.036] [Citation(s) in RCA: 95] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Revised: 05/14/2019] [Accepted: 05/14/2019] [Indexed: 12/18/2022] Open
Abstract
Background Despite promising treatments for breast cancer, mortality rates remain high and treatments for metastatic disease are limited. High-frequency irreversible electroporation (H-FIRE) is a novel tumor ablation technique that utilizes high-frequency bipolar electric pulses to destabilize cancer cell membranes and induce cell death. However, there is currently a paucity of data pertaining to immune system activation following H-FIRE and other electroporation based tumor ablation techniques. Methods Here, we utilized the mouse 4T1 mammary tumor model to evaluate H-FIRE treatment parameters on cancer progression and immune system activation in vitro and in vivo. Findings H-FIRE effectively ablates the primary tumor and induces a pro-inflammatory shift in the tumor microenvironment. We further show that local treatment with H-FIRE significantly reduces 4T1 metastases. H-FIRE kills 4T1 cells through non-thermal mechanisms associated with necrosis and pyroptosis resulting in damage associated molecular pattern signaling in vitro and in vivo. Our data indicate that the level of tumor ablation correlates with increased activation of cellular immunity. Likewise, we show that the decrease in metastatic lesions is dependent on the intact immune system and H-FIRE generates 4T1 neoantigens that engage the adaptive immune system to significantly attenuate tumor progression. Interpretation Cell death and tumor ablation following H-FIRE treatment activates the local innate immune system, which shifts the tumor microenvironment from an anti-inflammatory state to a pro-inflammatory state. The non-thermal damage to the cancer cells and increased innate immune system stimulation improves antigen presentation, resulting in the engagement of the adaptive immune system and improved systemic anti-tumor immunity.
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Affiliation(s)
- Veronica M Ringel-Scaia
- Graduate Program in Translational Biology, Medicine, and Health, Virginia Tech, Blacksburg, VA, USA; Department of Biomedical Sciences and Pathobiology, Virginia Tech, Virginia-Maryland College of Veterinary Medicine, Blacksburg, VA, USA
| | - Natalie Beitel-White
- Bioelectromechanical Systems Laboratory, Department of Biomedical Engineering and Mechanics, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA; Department of Electrical and Computer Engineering, Virginia Tech, Blacksburg, VA, USA
| | - Melvin F Lorenzo
- Bioelectromechanical Systems Laboratory, Department of Biomedical Engineering and Mechanics, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA; Virginia Tech - Wake Forest University, Virginia Tech, School of Biomedical Engineering & Sciences, Blacksburg, VA, USA
| | - Rebecca M Brock
- Graduate Program in Translational Biology, Medicine, and Health, Virginia Tech, Blacksburg, VA, USA; Department of Biomedical Sciences and Pathobiology, Virginia Tech, Virginia-Maryland College of Veterinary Medicine, Blacksburg, VA, USA
| | - Kathleen E Huie
- Department of Biomedical Sciences and Pathobiology, Virginia Tech, Virginia-Maryland College of Veterinary Medicine, Blacksburg, VA, USA
| | - Sheryl Coutermarsh-Ott
- Department of Biomedical Sciences and Pathobiology, Virginia Tech, Virginia-Maryland College of Veterinary Medicine, Blacksburg, VA, USA
| | - Kristin Eden
- Department of Biomedical Sciences and Pathobiology, Virginia Tech, Virginia-Maryland College of Veterinary Medicine, Blacksburg, VA, USA; Department of Basic Science Education, Virginia Tech Carilion School of Medicine, Roanoke, VA, USA
| | - Dylan K McDaniel
- Department of Biomedical Sciences and Pathobiology, Virginia Tech, Virginia-Maryland College of Veterinary Medicine, Blacksburg, VA, USA
| | - Scott S Verbridge
- Virginia Tech - Wake Forest University, Virginia Tech, School of Biomedical Engineering & Sciences, Blacksburg, VA, USA; Center for Engineered Health, Virginia Tech, Institute for Critical Technology and Applied Science, Blacksburg, VA, USA
| | - John H Rossmeisl
- Center for Engineered Health, Virginia Tech, Institute for Critical Technology and Applied Science, Blacksburg, VA, USA; Department of Small Animal Clinical Sciences, Virginia-Maryland College of Veterinary Medicine, Blacksburg, VA, USA
| | - Kenneth J Oestreich
- Graduate Program in Translational Biology, Medicine, and Health, Virginia Tech, Blacksburg, VA, USA; Department of Biomedical Sciences and Pathobiology, Virginia Tech, Virginia-Maryland College of Veterinary Medicine, Blacksburg, VA, USA; Department of Internal Medicine, Virginia Tech Carilion School of Medicine, Roanoke, VA, USA; Center for Engineered Health, Virginia Tech, Institute for Critical Technology and Applied Science, Blacksburg, VA, USA; Virginia Tech, Fralin Biomedical Research Institute at Virginia Tech Carilion, Roanoke, VA, USA
| | - Rafael V Davalos
- Graduate Program in Translational Biology, Medicine, and Health, Virginia Tech, Blacksburg, VA, USA; Bioelectromechanical Systems Laboratory, Department of Biomedical Engineering and Mechanics, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA; Virginia Tech - Wake Forest University, Virginia Tech, School of Biomedical Engineering & Sciences, Blacksburg, VA, USA; Department of Basic Science Education, Virginia Tech Carilion School of Medicine, Roanoke, VA, USA; Center for Engineered Health, Virginia Tech, Institute for Critical Technology and Applied Science, Blacksburg, VA, USA
| | - Irving C Allen
- Graduate Program in Translational Biology, Medicine, and Health, Virginia Tech, Blacksburg, VA, USA; Department of Biomedical Sciences and Pathobiology, Virginia Tech, Virginia-Maryland College of Veterinary Medicine, Blacksburg, VA, USA; Department of Basic Science Education, Virginia Tech Carilion School of Medicine, Roanoke, VA, USA; Center for Engineered Health, Virginia Tech, Institute for Critical Technology and Applied Science, Blacksburg, VA, USA.
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Surgical and local therapeutic concepts of oligometastatic pancreatic cancer in the era of effective chemotherapy. Eur Surg 2019. [DOI: 10.1007/s10353-019-0589-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Mackay TM, van Erning FN, van der Geest LG, de Groot JWB, Haj Mohammad N, Lemmens VE, van Laarhoven HW, Besselink MG, Wilmink JW. Association between primary origin (head, body and tail) of metastasised pancreatic ductal adenocarcinoma and oncologic outcome: A population-based analysis. Eur J Cancer 2019; 106:99-105. [DOI: 10.1016/j.ejca.2018.10.008] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 10/10/2018] [Accepted: 10/18/2018] [Indexed: 01/24/2023]
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EUS-guided irreversible electroporation using endoscopic needle-electrode in porcine pancreas. Surg Endosc 2018; 33:658-662. [PMID: 30374794 DOI: 10.1007/s00464-018-6425-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Accepted: 09/05/2018] [Indexed: 12/12/2022]
Abstract
BACKGROUND Endoscopic irreversible electroporation (IRE) can be performed using a flexible, thin, needle-shaped electrode for an endoscopic ultrasound (EUS)-guided procedure. This study aimed to evaluate the feasibility and efficacy of performing EUS-guided IRE with endoscopic needle-electrode in porcine pancreas. METHODS Experimental endoscopic IRE on the pancreas were performed by EUS-guided approach in three pigs and compared with surgical approach in three pigs. The animals were killed after 24 h and their pancreases collected. RESULTS IRE ablation using endoscopic needle-electrode was successful technically in EUS-guided approaches for the pancreas. Immediately following IRE, the ablated pancreatic tissue showed no gross change except focal hemorrhage. H&E staining presented a well-demarcated ablation site measuring 1.0-1.5 cm in diameter in the pancreas. TUNEL immunohistochemistry showed diffuse cell death along the puncture site 24 h after IRE. No complication was observed in pigs after endoscopic IRE ablation. CONCLUSION EUS-guided IRE ablation was feasible and effective for pancreas using the newly developed device.
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