1
|
Prasanna Arvind TR, Ramasamy N, Subramanian AK, Selvaraj A, Siva S. Three-dimensional volumetric evaluation of root resorption in maxillary anteriors following en-masse retraction with varying force vectors - a randomized control trial. Orthod Craniofac Res 2024; 27:211-219. [PMID: 37553952 DOI: 10.1111/ocr.12704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 06/10/2023] [Accepted: 07/31/2023] [Indexed: 08/10/2023]
Abstract
BACKGROUND Root resorption in orthodontics is associated with direction and magnitude of force application as primary etiological factors. Well-controlled trials that utilize three-dimensional segmentation to detect volumetric changes in tooth structure are required to assess the quantitative nature of root resorption. OBJECTIVE To assess the severity of root resorption (RR) during retraction of maxillary anteriors with three different force vectors (with and without skeletal anchorage) via cone-beam computed tomography (CBCT) superimpositions. TRIAL DESIGN Three-arm parallel randomized clinical trial (RCT). MATERIALS AND METHODS Forty-two (16 males, 26 females) patients, (17-28 years), in permanent dentition with bimaxillary protrusion were randomly allocated to three groups of 14 patients each using block randomization (1:1:1 ratio) and allocation concealment. En-masse anterior retraction post first premolar extractions was carried out with modified force vectors in the three groups based on anchorage type [Molar, Mini-implant and Infrazygomatic crest (IZC) bone screws]. Volumetric root loss and linear dimensional changes were blindly assessed on initial (T0) and final (T1, end of space closure) CBCT scans. Normality distribution of values was done using Shapiro-Wilk's test. ANOVA and Post-hoc Tukey HSD test were done to compare measurements between groups at significance levels (P < .05). RESULTS Forty patients were analysed (14, 14, and 12 in three groups). Significant volumetric loss was noted in all groups. Central incisors demonstrated a significant reduction in IZC group (81.5 ± 21.1 mm3 ) compared to conventional (50.1 ± 26.5 mm3 ) and mini-implant groups (76.1 ± 27.6 mm3 ). Canines demonstrated a significant reduction in mini-implant group (108.9 ± 33.9 mm3 ) compared to conventional (68.8 ± 42.5 mm3 ) and IZC groups (103.1 ± 29.1 mm3 ). Regarding linear parameters, central incisors and canines revealed significant root length reduction in both skeletal anchorage groups. Lateral incisors showed no significant changes between groups. CONCLUSIONS Intrusive force vectors generated during skeletally anchored retraction can predispose anteriors to an increased risk of resorption. Greater loss of root volume was noted in the centrals and canines when retracted with skeletal anchorage. LIMITATIONS Small sample size and variations during CBCT acquisition. HARMS Low-dose CBCT scans were taken at T0 and T1 treatment intervals.
Collapse
Affiliation(s)
- T R Prasanna Arvind
- Department of Orthodontics, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Chennai, India
| | - N Ramasamy
- Department of Orthodontics, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Chennai, India
| | - A K Subramanian
- Department of Orthodontics, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Chennai, India
| | - A Selvaraj
- Department of Orthodontics, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Chennai, India
| | - S Siva
- Department of Orthodontics, SRM Dental College, SRM University, Chennai, India
| |
Collapse
|
2
|
McMahon RA, D'Souza C, Neeson PJ, Siva S. Innate immunity: Looking beyond T-cells in radiation and immunotherapy combinations. Neoplasia 2023; 46:100940. [PMID: 37913654 PMCID: PMC10637988 DOI: 10.1016/j.neo.2023.100940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 10/09/2023] [Accepted: 10/10/2023] [Indexed: 11/03/2023]
Abstract
Radiation therapy is an established and effective anti-cancer treatment modality. Extensive pre-clinical experimentation has demonstrated that the pro-inflammatory properties of irradiation may be synergistic with checkpoint immunotherapy. Radiation induces double-stranded DNA breaks (dsDNA). Sensing of the dsDNA activates the cGAS/STING pathway, producing Type 1 interferons essential to recruiting antigen-presenting cells (APCs). Radiation promotes cytotoxic CD8 T-cell recruitment by releasing tumour-associated antigens captured and cross-presented by surveying antigen-presenting cells. Radiation-induced vascular normalisation may further promote T-cell trafficking and drug delivery. Radiation is also immunosuppressive. Recruitment of regulatory T cells (Tregs) and innate cells such as myeloid-derived suppressive cells (m-MDSCs) all counteract the immunostimulatory properties of radiation. Many innate immune cell types operate at the interface of the adaptive immune response. Innate immune cells, such as m-MDSCs, can exert their immunosuppressive effects by expressing immune checkpoints such as PD-L1, further highlighting the potential of combined radiation and checkpoint immunotherapy. Several early-phase clinical studies investigating the combination of radiation and immunotherapy have been disappointing. A greater appreciation of radiotherapy's impact on the innate immune system is essential to optimise radioimmunotherapy combinations. This review will summarise the impact of radiotherapy on crucial cells of the innate immune system and vital immunosuppressive cytokines.
Collapse
Affiliation(s)
- R A McMahon
- Department of Radiation Oncology, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia; Sir Peter MacCallum Department of Oncology, The University of Melbourne, Victoria, Australia.
| | - C D'Souza
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Victoria, Australia; Cancer Research, Peter MacCallum Cancer Centre, University of Melbourne, Melbourne, Victoria, Australia
| | - P J Neeson
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Victoria, Australia; Cancer Research, Peter MacCallum Cancer Centre, University of Melbourne, Melbourne, Victoria, Australia
| | - S Siva
- Department of Radiation Oncology, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia; Sir Peter MacCallum Department of Oncology, The University of Melbourne, Victoria, Australia
| |
Collapse
|
3
|
Siva S, Bressel M, Sidhom M, Sridharan S, Vanneste B, Davey R, Ruben J, Foroudi F, Higgs BG, Lin C, Raman A, Hardcastle N, Shaw M, Mancuso P, Lawrentschuk N, Wood S, Brook N, Kron T, Martin JM, Pryor DI. TROG 15.03/ANZUP International Multicenter Phase II Trial of Focal Ablative STereotactic RAdiotherapy for Cancers of the Kidney (FASTRACK II). Int J Radiat Oncol Biol Phys 2023; 117:S3. [PMID: 37784470 DOI: 10.1016/j.ijrobp.2023.06.208] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Stereotactic body radiotherapy (SBRT) is an emerging non-invasive alternative for primary renal cell cancer (RCC) in patients unsuitable for surgery. The objective of the FASTRACK II clinical trial was to investigate the efficacy of SBRT for primary RCC. MATERIALS/METHODS This non-randomized, intergroup multi-institutional phase II study was activated in 7 Australian centers and 1 Dutch center, through the Trans Tasman Radiation Oncology Group (TROG) and the Australian and New Zealand Urogenital and Prostate Cancer Trials Group (ANZUP). Eligible patients had biopsy confirmed diagnosis of primary RCC with a single lesion within a kidney, ECOG performance ≤2 and were medically inoperable, high risk or declined surgery. For tumors ≤4 cm a single fraction of 26 Gy was prescribed, for tumors > 4 cm, 42 Gy in three fractions was prescribed. The primary outcome of the study was to estimate the efficacy of SBRT for primary RCC, defined as local control based on RECIST criteria. The study was powered assuming that 1-year local control would be 90%, with the null hypothesis of ≤80% considered undesirable and not worthy of proceeding to a future randomized controlled trial. RESULTS Between July 2016 and February 2020, 70 patients were enrolled with a median follow-up of 42 months. Median age was 77 years. Forty-nine patients were male (70%), median BMI was 32 and median Charlson comorbidity score was 7. The median [IQR] RENAL complexity score was 8 [7-10]. Biopsy confirmation was 100%. Twenty-three patients (33%) had T1a disease. The median (interquartile range [IQR]) tumor size was 4.6cm [3.7-5.5]; it was 3.3cm [3.0-3.6] in those receiving single fraction (n = 23), and 5.3cm [4.6-6.0] in those receiving 3-fraction SBRT (n = 47). During real-time pre-treatment quality assurance review, 10 cases (14.3%) required resubmission for protocol deviation, 2119 variables were assessed at final review, and final protocol compliance was 99.3%. Seven (10%) patients experienced grade 3 treatment-related adverse events, with no grade 4 or 5 events observed. Eleven (16%) patients reported no adverse events. Local control was 100% throughout the lifetime of the trial (p<0.001). Cancer-specific survival was also 100% throughout the lifetime of the trial. Freedom from distant failure (95% CIs) at 1 and 3 years was 99% (90-100%). Overall survival (95% CIs) at 1 and 3 years was 99% (90-100%) and 82% (70-89%), respectively. Baseline mean eGFR (95% CI) was 61.1 mLs/min (56.6; 65.6) and reduced by -10.8 mLs/min (-13.0; -8.6) by 1-year, by -14.6 mLs/min (-17.0; -12.2) by 2-years and plateaued thereafter. CONCLUSION In the first multicenter prospective trial of a non-surgical primary RCC cohort, enrolling mostly T1b+ disease, SBRT was an effective treatment strategy with no observed local failures. We observed an acceptable side effect profile and renal function after SBRT. These outcomes support the design of a future randomized clinical trial of SBRT versus surgery for primary RCC. The trial was registered with ID: NCT02613819.
Collapse
Affiliation(s)
- S Siva
- Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Australia
| | - M Bressel
- Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC, Australia
| | - M Sidhom
- Liverpool Hospital Cancer Therapy Centre, University of New South Wales, School of Medicine, Sydney, NSW, Australia
| | - S Sridharan
- Calvary Mater Newcastle, Waratah & School of Medicine and Public Health, University of Newcastle, Callaghan, NSW, Australia
| | - B Vanneste
- Department of Radiation Oncology (MAASTRO), GROW - School for Oncology and Developmental Biology, Maastricht University Medical Center, Maastricht, Netherlands
| | - R Davey
- TROG Cancer Research, Waratah, NSW, Australia
| | - J Ruben
- The William Buckland Radiotherapy Centre, Alfred Health, Melbourne, VIC, Australia
| | - F Foroudi
- Austin Health, Radiation Oncology, Melbourne, Australia
| | - B G Higgs
- Department of Radiation Oncology, Royal Adelaide Hospital, Adelaide, SA, Australia
| | - C Lin
- Dept of Radiation Oncology, Royal Brisbane and Women's Hospital, Brisbane, QLD, Australia
| | - A Raman
- Royal Newcastle Centre, John Hunter Hospital & School of Medicine and Public Health, University of Newcastle, Newcastle, NSW, Australia
| | - N Hardcastle
- Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC, Australia
| | - M Shaw
- Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
| | - P Mancuso
- Urology Department, Liverpool Hospital, Sydney, NSW, Australia
| | - N Lawrentschuk
- Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
| | - S Wood
- Princess Alexandra Hospital, Brisbane, QLD, Australia
| | - N Brook
- Department of Surgery, School of Medicine, University of Adelaide, Adelaide, SA, Australia
| | - T Kron
- Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC, Australia
| | - J M Martin
- Department of Radiation Oncology, Calvary Mater Newcastle & School of Medicine and Public Health, University of Newcastle, Newcastle, NSW, Australia
| | - D I Pryor
- Princess Alexandra Hospital, Brisbane, QLD, Australia
| |
Collapse
|
4
|
Siva S, Wallace N, Hardcastle N, Kothari G, Crombag L, Rangamuwa K, Annema J, Lee P, Dieleman EM, Jennings B, Yo S, Nguyen P, Bashirzadeh F, Fielding D, Yasufuku K, Ost D, Irving L, Steinfort D. Dosimetric Impact of Systematic Mediastinal Staging via Endobronchial Ultrasound for Patients with Locally Advanced Lung Cancer: The SEISMIC Trial. Int J Radiat Oncol Biol Phys 2023; 117:S29. [PMID: 37784468 DOI: 10.1016/j.ijrobp.2023.06.290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) The SEISMIC trial aims to find the best method for mediastinal staging in patients with lung cancer receiving chemoradiotherapy. Currently, CT or PET-CT scans are standard in clinical practice, but histological evaluation of the mediastinum is performed on a case-by-case basis. The study will examine the effect of systematic histological evaluation using Endobronchial Ultrasound (EBUS) on radiotherapy target volumes. The hypothesis of this study is that differences in staging between the diagnostic PET-CT and EBUS would result in reduced tumor coverage and/or increased doses to organs at risk (OAR). MATERIALS/METHODS SEISMIC is a prospective multicenter international cohort study. Patients were enrolled from Australia, the Netherlands, USA and Canada after regional IRB approvals. Patients were treated with 4DCT simulation. Two iGTV and PTV target volumes were delineated for each patient with discordant staging according to both PET-CT and EBUS, as were OARs. Two VMAT plans were generated for each patient based on either PET-CT or EBUS target volumes using knowledge-based planning methodology. Plans aimed to achieve institutional guidelines for target coverage and OAR dose constraints, with a prescribed dose of 60 Gy in 30 fractions. Target coverage and OAR doses for the PET- and EBUS-defined volumes were compared. RESULTS In 156 patients, EBUS showed a larger extent of disease than PET in 18 (11.5%) and a smaller extent of lymph node (LN) involvement than PET in 49 (31.4%). Out of 67 patients with PET-EBUS discordant results, 25 underwent upfront radiotherapy and were included in the study. EBUS revealed PET-occult LN involvement in 11/25 patients (44%). In these patients, 10/11 patients received <95% of the prescribed dose to PET-occult LN iGTVs; the median [range] minimum dose to the EBUS iGTV was 9.2 Gy [0.1 - 57.9 Gy]. When planning based on EBUS LN involvement, all patients received ≥95% of the prescribed dose to the iGTV (the median [range] minimum dose to the EBUS iGTV was 58.9 Gy [58.1 - 60.5 Gy]). This resulted in increased median [range] doses to OARs; mean lung dose increased by 1.1 Gy [0.3 - 8.4 Gy], esophagus mean dose increased by 3.6 Gy [0.2 - 24.8 Gy], and mean heart dose increased by 0.5 Gy [-0.6 - 8.5 Gy]. CONCLUSION Systematic endoscopic evaluation of the mediastinum had a significant effect on tumor coverage in a clinically meaningful proportion of cases and consequent plan adaptation impacted on organ-at-risk (OAR) doses. Results suggest systematic mediastinal LN staging should be considered in all patients prior to curative-intent radiotherapy. CLINICAL TRIAL ID ACTRN12617000333314.
Collapse
Affiliation(s)
- S Siva
- Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Australia
| | - N Wallace
- Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
| | - N Hardcastle
- Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC, Australia
| | - G Kothari
- Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC, Australia
| | - L Crombag
- Department of Pulmonology, Amsterdam UMC, Amsterdam, Netherlands
| | - K Rangamuwa
- Department of Respiratory and Sleep Medicine, Royal Melbourne Hospital, Melbourne, VIC, Australia
| | - J Annema
- Department of Pulmonology, Amsterdam UMC, Amsterdam, Netherlands
| | - P Lee
- MD Anderson Cancer Center, The University of Texas, Houston, TX
| | - E M Dieleman
- Department of Radiation Oncology, Amsterdam UMC, Amsterdam, Netherlands
| | - B Jennings
- Department of Lung and Sleep, Monash Health, Melbourne, VIC, Australia
| | - S Yo
- Department of Lung and Sleep, Monash Health, Melbourne, VIC, Australia
| | - P Nguyen
- Department of Thoracic Medicine, Royal Adelaide Hospital, Adelaide, VIC, Australia
| | - F Bashirzadeh
- Department of Thoracic Medicine, Royal Brisbane and Women's Hospital, Brisbane, QLD, Australia
| | - D Fielding
- Department of Thoracic Medicine, Royal Brisbane and Women's Hospital, Brisbane, VIC, Australia
| | - K Yasufuku
- Division of Thoracic Surgery, Toronto General Hospital, Toronto, ON, Canada; University of Toronto, Toronto, ON, Canada
| | - D Ost
- MD Anderson Cancer Center, The University of Texas, Houston, TX
| | - L Irving
- Department of Respiratory and Sleep Medicine, Royal Melbourne Hospital, Melbourne, VIC, Australia
| | - D Steinfort
- Department of Respiratory and Sleep Medicine, Royal Melbourne Hospital, Melbourne, VIC, Australia
| |
Collapse
|
5
|
Siva S, McMahon R, Bressel M, Dsouza C, Castle RG, DiIulio J, Jennens R, Thai A, Tan L, Morris T, Dawson SJ, Shaw M, Plumridge N, Neeson P, Ball DL, Solomon B. SABRSeq: A Randomized Phase Ib Trial of SABR Sequencing with Pembrolizumab in Metastatic Non-Small Cell Lung Cancer (NSCLC). Int J Radiat Oncol Biol Phys 2023; 117:e58. [PMID: 37785761 DOI: 10.1016/j.ijrobp.2023.06.774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) The optimal sequencing of stereotactic ablative body radiotherapy (SABR) with anti-PD1 checkpoint blockade is unknown. The purpose of SABRseq was to assess the toxicity of the combination of SABR delivered either before or after the commencement of pembrolizumab. The central hypothesis is that the treatment combination will have a safety profile that is clinically acceptable and demonstrate anti-tumor efficacy. Furthermore, we hypothesize that differences in systemic immune activation will be observed between treatment arms. MATERIALS/METHODS This was a single institutional phase Ib randomized clinical trial (Trial ID NCT03307759). Eligible patients had metastatic NSCLC, ECOG performance 0-1, and had not received prior checkpoint immunotherapy, high-dose radiation (>36 Gy) within 6 months, or either systemic or radiation therapy within 4 weeks of randomization. Eligible patients had either TPS≥50% PD-L1 expression in the first-line or TPS≥1% PD-L1 expression with prior chemotherapy exposure. Patients were randomized to SABR before the commencement of pembrolizumab [ARM1] or SABR commencing after pembrolizumab [ARM2]. SABR was delivered in a single fraction of 18-20 Gy to 1-3 lesions. The primary endpoint was treatment-related adverse events (AE's) related to SABR and/or pembrolizumab. Secondary endpoints included best overall response (BOR), overall survival (OS), and progression-free survival (PFS). Translational objectives included the evaluation of longitudinal changes in immunological cellular subsets within peripheral blood to explore changes in systemic immunity and circulating tumor DNA (ctDNA) dynamics. RESULTS Between December 2017 and December 2019, 13 patients were randomized. The median follow-up was 37 months. The study was closed early due to poor accrual. Median age was 66 years, with 11 patients (84%) having adenocarcinoma. Nine (69%) were enrolled in the first-line setting. The median [range] number of lesions was 6 [3-11]. The median [range] cycles of pembrolizumab delivered in ARM 1 was 13 [12-32] and ARM 2 was 9 [3-34]. Grade 3 treatment-related AEs were experienced in 0 of 5 patients in ARM1 and in 1 of 8 patients in ARM 2 (hyperglycemia). There were no grade 4 or 5 adverse events reported. The BOR by both RECIST and iRECIST criteria was CR in one patient, PR in seven patients, SD in five patients. Median (95% Cis) PFS was 12.4 months (6.3-21.0), and median (95% Cis) OS was 47.1 months (12.6-not reached; 2-year point estimate 62% [31-82]). Mass cytometry was used on serial peripheral blood samples to examine changes in the frequency of immune cells, changes in T cell activation, differentiation and functional polarization state. Targeted sequencing was performed to assess ctDNA. Translational outcomes will be presented. CONCLUSION There was no evidence of a concerning safety signal from either SABR before or after start of pembrolizumab. The combination demonstrated activity with promising PFS and OS and is worthy of evaluation in larger randomized trials.
Collapse
Affiliation(s)
- S Siva
- Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Australia
| | - R McMahon
- Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC, Australia
| | - M Bressel
- Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC, Australia
| | - C Dsouza
- Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
| | - R G Castle
- Peter MacCallum Cancer Centre, Melbourne, Australia
| | - J DiIulio
- Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
| | - R Jennens
- Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
| | - A Thai
- Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
| | - L Tan
- Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
| | - T Morris
- Southern Blood and Cancer Service, Dunedin, New Zealand
| | - S J Dawson
- Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC, Australia
| | - M Shaw
- Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
| | - N Plumridge
- Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
| | - P Neeson
- Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC, Australia
| | - D L Ball
- Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC, Australia
| | - B Solomon
- Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC, Australia
| |
Collapse
|
6
|
Sutera P, Deek MP, Jing Y, Pryor DI, Huynh MA, Koontz BF, Mercier C, Ost P, Kiess AP, Conde-Moreno AJ, Stish BJ, Bosetti DG, Siva S, Berlin A, Kroeze S, Corcoran N, Trock B, Gillessen S, Tran PT, Sweeney C. Multi-Institutional Analysis of Metastasis Directed Therapy with or without Androgen Deprivation Therapy in Oligometastatic Castration Sensitive Prostate Cancer. Int J Radiat Oncol Biol Phys 2023; 117:e442-e443. [PMID: 37785433 DOI: 10.1016/j.ijrobp.2023.06.1620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Several prospective trials in oligometastatic castration sensitive prostate cancer (omCSPC) have shown metastasis-directed therapy (MDT) can delay time to progression and initiation of androgen deprivation therapy (ADT) compared to observation. However, the optimal integration of ADT with MDT remains unclear. Here we report a multi-national, multi-institutional retrospective cohort of omCSPC treated with MDT to characterize the long-term outcomes of patients treated with MDT alone or in combination with ADT. MATERIALS/METHODS Patients with a controlled primary site and omCSPC (defined as ≤ 5 lesions on conventional imaging) treated with MDT with or without concurrent ADT and with at least 36 months follow-up were retrospectively screened across 13 institutions. The primary endpoints included biochemical progression free survival (bPFS) and radiographic progression free survival (rPFS) calculated using Kaplan-Meier method and stratified by treatment group (MDT alone vs MDT + ADT). Multivariable Cox regression was performed adjusted for variables found to be prognostic on univariate analysis. RESULTS Among 414 patients screened, a total of 263 patients treated between 2003 and 2018 met inclusion criteria and included. Of these, 105 received MDT alone and 158 received MDT+ADT, with median follow-up of 49.5 and 54.5 months, respectively. The majority were metachronous (90%) and had bone lesions (60%). Median ADT duration was 21.3 months (IQR 12.0- 31.9). Patients who received ADT vs. no ADT had poorer prognostic features including 23% vs. 1% synchronous (p<0.001), and 55% vs 40% Gleason 8-10 (p = 0.012). ADT use was associated with a better 5-year bPFS 24% vs 11% (p<0.0001) and rPFS 41% vs 29% (p<0.001). On multivariable Cox regression adjusting for post-MDT PSA nadir and salvage therapy, ADT use maintained significance for both bPFS (HR 0.51 (0.36, 0.71), p<0.001) and rPFS (HR 0.67, 95% CI 0.46-0.96, p = 0.03). CONCLUSION Long-term outcomes with MDT alone suggest a small proportion of patients experience sustained disease control. The addition of ADT appears to improve rPFS, however prospective studies are needed in order to allow for personalization of care in patients with omCSPC.
Collapse
Affiliation(s)
- P Sutera
- Johns Hopkins University School of Medicine, Baltimore, MD
| | - M P Deek
- Rutgers Cancer Institute of New Jersey, Department of Radiation Oncology, New Brunswick, NJ
| | - Y Jing
- Johns Hopkins, Baltimore, MD
| | - D I Pryor
- Princess Alexandra Hospital, Brisbane, QLD, Australia
| | - M A Huynh
- Department of Radiation Oncology, Brigham and Women's Hospital/Dana-Farber Cancer Institute and Harvard Medical School, Boston, MA
| | | | - C Mercier
- Gasthuis Sisters, Antwerpen, Belgium
| | - P Ost
- Department of Radiation Oncology, Ghent University Hospital, Ghent, Belgium
| | - A P Kiess
- Department of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins University School of Medicine, Baltimore, MD
| | | | - B J Stish
- Department of Radiation Oncology, Mayo Clinic, Rochester, MN
| | - D G Bosetti
- Department of Radiation Oncology, Istituto Oncologico della Svizzera Italiana, Bellinzona, Switzerland
| | - S Siva
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC, Australia
| | - A Berlin
- Department of Radiation Oncology, Princess Margaret Cancer Centre, University of Toronto, Toronto, ON, Canada
| | - S Kroeze
- University Hospital Zurich, Zurich, Switzerland
| | - N Corcoran
- University of Melbourne, Melbourne, Australia
| | - B Trock
- Brady Urological Institute at Johns Hopkins Medical Institution, Baltimore, MD
| | - S Gillessen
- Istituto Oncologico della Svizzera Italiana, Bellinzona, Switzerland
| | - P T Tran
- Department of Radiation Oncology, University of Maryland School of Medicine, Baltimore, MD
| | - C Sweeney
- University of Adelaide, Adelaide, Australia
| |
Collapse
|
7
|
Tan VS, Correa RJM, Warner A, Ali M, Muacevic A, Ponsky L, Ellis RJ, Lo SS, Onishi H, Swaminath A, Kwon YS, Morgan SC, Cury F, Teh BS, Mahadevan A, Kaplan ID, Chu W, Hannan R, Staehler M, Grubb W, Louie AV, Siva S. 5-Year Renal Function Outcomes after SABR for Primary Renal Cell Carcinoma: A Report from the International Radiosurgery Oncology Consortium of the Kidney (IROCK). Int J Radiat Oncol Biol Phys 2023; 117:S84. [PMID: 37784588 DOI: 10.1016/j.ijrobp.2023.06.405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Renal cell carcinoma (RCC) presents uncommonly in patients with a congenital solitary kidney or prior contralateral nephrectomy. The objective of this study was to compare renal function outcomes of stereotactic ablative body radiotherapy (SABR) in patients with solitary vs. bilateral kidneys. MATERIALS/METHODS Patients with primary RCC with ≥2 years of follow-up at 12 participating International Radiosurgery Consortium for Kidney (IROCK) institutions were included. Patients with upper tract urothelial carcinoma or metastatic disease were excluded. Renal function was measured by estimated glomerular filtration rate (eGFR). For patients where eGFR was not recorded, Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equation was used to estimate eGFR based on known creatinine. Baseline characteristics and renal function outcomes were compared between solitary vs. bilateral kidneys. Multivariable logistic regression was used to identify factors predictive of eGFR decline ≥ 15 mL/min and any eGFR increase evaluated at 1-year post-SABR. RESULTS One hundred and ninety patients with solitary (n = 56) or bilateral kidneys (n = 134) underwent SABR and were followed for a median of 5.0 years (IQR: 3.4-6.8). Pre-SABR eGFR (mean ± SD) was similar in patients with solitary (61.1 ± 23.2 mL/min) vs. bilateral kidneys (58.0 ± 22.3 mL/min, p = 0.324). Mean tumor size was 3.70 ± 1.40 cm in solitary and 4.35 ± 2.50 cm in bilateral kidneys (p = 0.026). After SABR, an initial compensatory increase in eGFR was observed in both cohorts (22.7% solitary and 17.7% bilateral at 1 year). This compensatory increase persisted in patients with bilateral but not a solitary kidney (10.3% vs. 0% at 3-years and 21.1% vs. 0% at 5-years, respectively). At 5-years post-SABR, eGFR decreased by -14.5 ± 7.6 in solitary and -13.3 ± 15.9 mL/min in bilateral kidneys (p = 0.665). At all timepoints assessed, there were no significant differences in eGFR decline between solitary vs. bilateral cohorts (all p > 0.05). There were also no significant differences in post-SABR end-stage renal disease (7.1% vs. 6.7%) or dialysis (3.6% vs. 3.7%) in solitary vs. bilateral, respectively. Multivariable analysis demonstrated that increasing tumor size (OR per 1 cm: 1.57; 95% CI: 1.14-2.16, p = 0.006) and baseline eGFR (OR per 10 mL/min: 1.30; 95% CI: 1.02-1.66, p = 0.034) was more likely to be associated with eGFR decline ≥ 15 mL/min. There was no significant association between solitary vs. bilateral kidney and eGFR decline (OR: 1.22; 95% CI: 0.45-3.34, p = 0.693). CONCLUSION There was no observed difference between renal function outcomes in patients with a solitary vs. bilateral kidneys. While larger tumor size may increase the risk of eGFR decline post-SABR, treatment of a solitary kidney does not appear to increase the risk of renal dysfunction long-term.
Collapse
Affiliation(s)
- V S Tan
- London Regional Cancer Program, London, ON, Canada
| | - R J M Correa
- London Regional Cancer Program, London, ON, Canada
| | - A Warner
- London Regional Cancer Program, London, ON, Canada
| | - M Ali
- Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Australia
| | - A Muacevic
- University of Munich Hospitals, Munich, Germany
| | - L Ponsky
- University Hospitals Cleveland Medical Center, Case Western Reserve University School of Medicine, Cleveland, OH
| | | | - S S Lo
- University of Washington School of Medicine, Seattle, WA
| | - H Onishi
- University of Yamanashi, Chuo, Japan
| | - A Swaminath
- Juravinski Cancer Centre, McMaster University, Hamilton, ON, Canada
| | - Y S Kwon
- University of Texas Southwestern Medical Center, Dallas, TX
| | - S C Morgan
- The Ottawa Hospital Cancer Center, Ottawa, ON, Canada
| | - F Cury
- McGill University Health Centre, Montreal, QC, Canada
| | - B S Teh
- Houston Methodist Hospital, Houston, TX
| | - A Mahadevan
- NYU Langone Health Laura and Isaac Perlmutter Cancer Center, New York, NY
| | - I D Kaplan
- Beth Israel Deaconess Medical Center, Boston, MA
| | - W Chu
- Sunnybrook Health Sciences Centre, Toronto, ON, Canada
| | - R Hannan
- University of Texas Southwestern Medical Center, Dallas, TX
| | - M Staehler
- University of Munich Hospitals, Munich, Germany
| | - W Grubb
- Augusta University, Augusta, GA
| | - A V Louie
- Sunnybrook Health Sciences Centre, Toronto, ON, Canada
| | - S Siva
- Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Australia
| |
Collapse
|
8
|
Barry A, Helou J, Bezjak A, Wong R, Dawson L, Ringash J, Fazelzad R, Liu Z, Olson R, Palma D, Ost P, Siva S, Phillips R, Adhikari N. Health Related Quality of Life Outcomes Following Stereotactic Body Radiotherapy in Patients with Oligo-Metastatic Disease: An Individual Patient Data Meta-Analysis. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
|
9
|
Gaudreault M, Chang D, Hardcastle N, Jackson P, Kron T, Hofman M, Siva S. Combined Biology-Guided Radiotherapy and Lutetium PSMA Treatment in Metastatic Prostate Cancer. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
10
|
Baydoun A, Pereira I, Turner S, Siva S, Albert A, Loblaw D, Simcock R, Katz M, Zaorsky N. Organized Social Medical Communication in Radiation Oncology: Two-Year Trends of Structured Hashtags. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
|
11
|
Bucknell N, Hardcastle N, Woon B, Bressel M, Byrne K, Selbie L, Callahan J, Hanna G, Hofman M, Ball D, Kron T, Siva S. EP05.01-023 Feasibility of Functional Lung Avoidance using Ga-68 4D Ventilation Perfusion PET/CT: The HI-FIVE Trial. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
12
|
Siva S, Bressel M, Sogono P, Shaw M, Chander S, Chu J, Plumridge N, Byrne K, Kothari G, Bucknell N, Hardcastle N, Kron T, Wheeler G, MacManus M, Hanna G, Ball D, David S. MO-0711 Impact of operability and total metastatic ablation on outcomes after SABR for oligometastases. Radiother Oncol 2022. [DOI: 10.1016/s0167-8140(22)02409-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
13
|
Madani I, Guckenberger M, Erler D, Stish B, Olivier K, Park S, Eppinga W, Seravalli E, Redmond K, Cao Y, Siva S, Chang D, Nguyen T, O’Neil M, Sahgal A. MO-0713 Stereotactic Body Radiotherapy for Long Bone Metastases: An International Multicenter Analysis. Radiother Oncol 2022. [DOI: 10.1016/s0167-8140(22)02411-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
14
|
Zilli T, Siva S, Heikkilä R, Dirix P, Liefhooghe N, Otte F, Gomez-Iturriaga A, Everaerts W, Shelan M, Conde- Moreno A, López Campos F, Papachristofilou A, Guckenberger M, Scorsetti M, Zapatero A, Villafranca Iturre A, Eito C, Couñago F, Muto P, Van De Voorde L, Fonteyne V, Moon D, Thon K, Mercier C, Achard V, Stellamans K, Goetghebeur E, Reynders D, Ost P. OC-0603 PEACE V – STORM randomized phase II trial for oligorecurrent nodal prostate cancer: acute toxicity. Radiother Oncol 2022. [DOI: 10.1016/s0167-8140(22)02625-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
15
|
Siva S, Basu S. 33 ECGs in the Surgical Patient - a Review of Practice. Br J Surg 2022. [DOI: 10.1093/bjs/znac039.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
Aim
To Identify if baseline admission ECGs are performed for all emergency surgical patients over the age of 50 being admitted directly to General Surgery from the community. Aim to have 100% of patients >50 years to have admission ECGs.
Method
We undertook a retrospective audit analysing the following parameters:
** This Hospital offers an in-hours (0900-1630, weekdays) ECG service via the cardiac physiology department.
We Conducted 3 cycles of 1 month duration each to assess findings.
Interventions:
Results
Cycle 1–50% (8/16) patients had admission ECGs. 50% (8/16) within 2 hours.
Cycle 2–54% (12/21) patients had admission ECGs. 43% (9/21) within 2 hours.
Cycle 3–71% (17/24) patients had admission ECGs. 62% (15/24) within 2 hours.
Conclusions
We noted improvement in admission ECGs through our interventions. Reminder emails were deemed useful. Barriers identified in After-hours ECGs being done on time due to clinical priorities. We identified a potential role for ECG-trained health-care professionals. 0900–1630 ECG service deemed valuable to admitting doctors. ECG machines were reviewed and found satisfactory. Possible delays in treatment could not be analysed with data collected. Hence, there is further scope to look into outcomes of delayed/missed ECGs e.g., delayed surgery / missed or alternative diagnosis.
Collapse
Affiliation(s)
- S. Siva
- Inverclyde Royal Hospital, Greenock, United Kingdom
| | - S. Basu
- Inverclyde Royal Hospital, Greenock, United Kingdom
| |
Collapse
|
16
|
Tjong M, Louie A, Singh A, Videtic G, Stephans K, Plumridge N, Harden S, Slotman B, Alongi F, Guckenberger M, Siva S. Single-Fraction Stereotactic Ablative Body Radiotherapy to the Lung – The Knockout Punch. Clin Oncol (R Coll Radiol) 2022; 34:e183-e194. [DOI: 10.1016/j.clon.2022.02.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Revised: 01/19/2022] [Accepted: 02/07/2022] [Indexed: 12/12/2022]
|
17
|
Gaudreault M, Chang D, Hardcastle N, Jackson P, Kron T, Hofman M, Hanna G, Shirvani S, Siva S. Evaluation of PSMA-PET Biology-Guided Radiotherapy Sequential Boost to the PSMA-avid Subvolume in the Prostate Region in Low-Volume Advanced Prostate Cancer. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
18
|
Tran K, Chevli N, Messer J, Haque W, Farach A, Satkunasivam R, Zhang J, Darcourt J, Lo S, Siva S, Butler E, Teh B. Prognostic Impact of Biologically Equivalent Dose in Stereotactic Body Radiation Therapy for Renal Cancer. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
19
|
Barry A, Helou J, Bezjak A, Dawson L, Fazelzad R, Liu Z, Weiss J, Palma D, Ost P, Siva S, Phillips R, Olson R, Ringash J, Wong R, Adhikari N. Quality of Life Outcomes Following Stereotactic Body Radiotherapy in Patients with Oligo-Metastatic Disease: A Systematic Review and Meta-Analysis. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
20
|
Siva S. SP-0243 SBRT - A new frontier for primary kidney cancer. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)08537-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
21
|
Kroeze S, Schaule J, Spaas M, Kahl K, Verhoeff J, Schneiders F, Blanck O, Lohaus F, Rogers S, Kaul D, Benavente S, Combs S, Skazikis G, Baumann K, Popp I, Koppe F, Geinitz H, de Jaeger K, Siva S, Stera S, Wittig-Sauerwein A, Lewitzki V, Eckert F, Schymalla M, Guckenberger M. OC-0626 Toxicity of SRT combined with targeted agents: prospective analysis of the TOaSTT database. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)06982-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
22
|
Lehmann J, Hussein M, Siva S, Moore A, Standen T, Subramanian B, Greer P, Clark C. OC-0428 Improving local Patient Specific Quality Assurance – a novel remote auditing approach. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)06915-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
23
|
Hardcastle N, Cook O, Ray X, Moore A, Moore K, Pryor D, Rossi A, Foroudi F, Kron T, Siva S. OC-0426 Prospective knowledge-based planning for personalised plan QA in a multi-centre kidney SABR trial. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)06913-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
24
|
Siva S, Bressel M, Mai T, Le H, Vinod S, de Silva H, Macdonald S, Skala M, Hardcastle N, Rezo A, Pryor D, Gill S, Higgs B, Wagenfuehr K, Montgomery R, Awad R, Chesson B, Eade T, Wong W, Sasso G, De Abreu Lourenco R, Kron T, Ball D, Neeson P. OC-0335 Final results of TROG 13.01 SAFRON II: Single vs multi-fraction SABR for pulmonary oligometastases. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)06868-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
25
|
Achard V, Heikkilä R, Dirix P, Siva S, Liefhooghe N, Conde-Moreno A, Meersschout S, Muto P, Eíto C, Barrado M, Putora P, Zwhalen D, Scorsetti M, Zapatero A, Van De Voorde L, López Campos F, Couñago F, Vanhoutte F, Jaccard M, Dipasquale G, Ost P, Zilli T. PO-1712 Oligorecurrent nodal prostate cancer: radiotherapy QA of the randomized PEACE V-STORM phase II trial. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)08163-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
26
|
Gaudreault M, Siva S, Kron T, Hardcastle N. PH-0544 Clinical impacts of managing motion in kidney stereotactic ablative body radiotherapy. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)07354-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
27
|
Ost P, Alejandro B, Siva S, Reynders D, Phillips R, Glicksman R, Foroudi F, Fonteyne V, Deek M, Chung P, Murphy D, Tran P. Metastasis-directed therapy for oligorecurrent prostate cancer: A pooled analysis of prospective trials. Eur Urol 2021. [DOI: 10.1016/s0302-2838(21)01217-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
28
|
Martin J, Sidhom M, Pryor D, Tang C, Hayden A, Miller A, Sridaran S, Trada Y, Capp A, Greer P, Keall P, Siva S, Tomaszewski J. SP-0032 Against the motion rebuttal: Brachytherapy Boost for Prostate Cancer - A Diminishing Solution. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)06472-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
29
|
McDonald F, Mornex F, Garassino M, Filippi A, Christoph D, Haakensen V, Agbarya A, Van den Heuvel M, Vercauter P, Chouaid C, Pichon E, Siva S, Steinbusch L, Peretz I, Solomon B, Decoster L, Sawyer W, Allen A, Licour M, Girard N. 79MO PACIFIC-R: Real-world characteristics of unresectable stage III NSCLC patients treated with durvalumab after chemoradiotherapy. J Thorac Oncol 2021. [DOI: 10.1016/s1556-0864(21)01921-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
30
|
Sahgal A, Myrehaug S, Siva S, Masucci L, Foote M, Brundage M, Butler J, Chow E, Fehlings M, Gabos Z, Greenspoon J, Kerba M, Lee Y, Liu M, Maralani P, Thibault I, Wong R, Hum M, Ding K, Parulekar W. CCTG SC.24/TROG 17.06: A Randomized Phase II/III Study Comparing 24Gy in 2 Stereotactic Body Radiotherapy (SBRT) Fractions Versus 20Gy in 5 Conventional Palliative Radiotherapy (CRT) Fractions for Patients with Painful Spinal Metastases. Int J Radiat Oncol Biol Phys 2020; 108:1397-1398. [DOI: 10.1016/j.ijrobp.2020.09.019] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
31
|
Newman S, Bucknell N, Bressel M, Tran P, Campbell BA, David S, Haghighi N, Hanna GG, Kok D, MacManus M, Phillips C, Plumridge N, Shaw M, Wirth A, Wheeler G, Ball D, Siva S. Long-term Survival with 18-Fluorodeoxyglucose Positron Emission Tomography-directed Therapy in Non-small Cell Lung Cancer with Synchronous Solitary Brain Metastasis. Clin Oncol (R Coll Radiol) 2020; 33:163-171. [PMID: 33129655 DOI: 10.1016/j.clon.2020.10.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 07/28/2020] [Accepted: 10/13/2020] [Indexed: 11/27/2022]
Abstract
AIMS At diagnosis, <1% of patients with non-small cell lung cancer (NSCLC) have synchronous solitary brain metastasis (SSBM). In prior cohorts without 18-fluorodeoxyglucose positron emission tomography/computed tomography (FDG-PET/CT) staging, definitive treatment to intracranial and intrathoracic disease showed a 5-year overall survival (OS) of 11-21%. We investigated the long-term survival outcomes for patients with SSBM NSCLC, diagnosed in the FDG-PET/CT era and treated definitively with local therapies to both intracranial and intrathoracic sites of disease. MATERIALS AND METHODS This retrospective study assessed patients staged with FDG-PET/CT who received definitive lung and SSBM treatment from February 1999 to December 2017. A lung-molecular graded prognostic assessment (lung-molGPA) score was assigned for each patient using age, performance status score, and, where carried out, molecular status. Overall survival and progression-free survival (PFS) were calculated using Kaplan-Meier methods. Cox proportional hazard models determined OS and PFS prognostic factors. RESULTS Forty-nine patients newly diagnosed with NSCLC and SSBM had a median age of 63 years (range 34-76). The median follow-up of all patients was 3.9 years. Thirty-three patients (67%) had ≥T2 disease, 23 (47%) had ≥N2. At 2 years, 45% of first failures were intracranial only (95% confidence interval 30-59). At 3 and 5 years, OS was 45% (95% confidence interval 32-63) and 30% (95% confidence interval 18-51), respectively. In ≥N1 disease, 5-year OS was 34% (95% confidence interval 18-63). The 3- and 5-year PFS was 8% (95% confidence interval 3-22) and 0%, respectively. Higher lung-molGPA was associated with longer OS (hazard ratio 0.26, 95% confidence interval 0.11-0.61, P = 0.002). Higher lung-molGPA (hazard ratio 0.33, 95% confidence interval 0.15-0.71, P = 0.005) and lower N-stage (hazard ratio 1.56, 95% confidence interval 1.13-2.15, P = 0.007) were associated with longer PFS. CONCLUSIONS Definitive treatment of patients with NSCLC and SSBM staged with FDG-PET/CT can result in 5-year survivors, including those with ≥N1 disease.
Collapse
Affiliation(s)
- S Newman
- Peter MacCallum Cancer Centre, Radiation Oncology, Parkville, Victoria, Australia
| | - N Bucknell
- Peter MacCallum Cancer Centre, Radiation Oncology, Parkville, Victoria, Australia; Sir Peter MacCallum Department of Oncology, Melbourne University, Parkville, Victoria, Australia
| | - M Bressel
- Peter MacCallum Cancer Centre, Radiation Oncology, Parkville, Victoria, Australia
| | - P Tran
- Peter MacCallum Cancer Centre, Radiation Oncology, Parkville, Victoria, Australia
| | - B A Campbell
- Peter MacCallum Cancer Centre, Radiation Oncology, Parkville, Victoria, Australia; Sir Peter MacCallum Department of Oncology, Melbourne University, Parkville, Victoria, Australia
| | - S David
- Peter MacCallum Cancer Centre, Radiation Oncology, Parkville, Victoria, Australia
| | - N Haghighi
- Peter MacCallum Cancer Centre, Radiation Oncology, Parkville, Victoria, Australia
| | - G G Hanna
- Peter MacCallum Cancer Centre, Radiation Oncology, Parkville, Victoria, Australia; Sir Peter MacCallum Department of Oncology, Melbourne University, Parkville, Victoria, Australia
| | - D Kok
- Peter MacCallum Cancer Centre, Radiation Oncology, Parkville, Victoria, Australia
| | - M MacManus
- Peter MacCallum Cancer Centre, Radiation Oncology, Parkville, Victoria, Australia; Sir Peter MacCallum Department of Oncology, Melbourne University, Parkville, Victoria, Australia
| | - C Phillips
- Peter MacCallum Cancer Centre, Radiation Oncology, Parkville, Victoria, Australia
| | - N Plumridge
- Peter MacCallum Cancer Centre, Radiation Oncology, Parkville, Victoria, Australia
| | - M Shaw
- Peter MacCallum Cancer Centre, Radiation Oncology, Parkville, Victoria, Australia
| | - A Wirth
- Peter MacCallum Cancer Centre, Radiation Oncology, Parkville, Victoria, Australia
| | - G Wheeler
- Peter MacCallum Cancer Centre, Radiation Oncology, Parkville, Victoria, Australia
| | - D Ball
- Sir Peter MacCallum Department of Oncology, Melbourne University, Parkville, Victoria, Australia
| | - S Siva
- Peter MacCallum Cancer Centre, Radiation Oncology, Parkville, Victoria, Australia; Sir Peter MacCallum Department of Oncology, Melbourne University, Parkville, Victoria, Australia.
| |
Collapse
|
32
|
Siva S, Bressel M, Kron T, Mai T, Le H, Montgomery R, Hardcastle N, Rezo A, Gill S, Higgs B, Pryor D, De Abreu Lourenco R, Awad R, Chesson B, Eade T, Skala M, Sasso G, Wong W, Vinod S, Ball D. Stereotactic Ablative Fractionated Radiotherapy versus Radiosurgery for Oligometastatic Neoplasia to the Lung: A Randomized Phase II Trial. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.2072] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
|
33
|
Donovan E, Xie F, Chu W, Louie A, Kapoor A, Siva S, Swaminath A. Cost-Effectiveness of Radiofrequency Ablation (RFA) Versus Stereotactic Body Radiotherapy (SBRT) in the Treatment of Localized Renal Cell Carcinoma. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.2430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
34
|
Gaudreault M, Hardcastle N, Jackson P, Callahan J, Kron T, Huntzinger C, Shirvani S, Da Silva A, Hofman M, Hanna G, Siva S. Suitability of PSMA-PET Biology-Guided Radiotherapy for Low Volume Metastases in Newly Diagnosed Prostate Cancer. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.983] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
35
|
Kroeze S, Fritz C, Blanck O, Kahl K, Kaul D, Siva S, Gerum S, Claes A, Sundahl N, Adebahr S, Nateghian A, Schymalla M, Wittig A, Buergy D, Geier M, Szuecs M, Lohaus F, Henke G, Combs S, Guckenberger M. OC-0453: Efficacy and safety of stereotactic radiotherapy combined with TKIs for metastatic lesions. Radiother Oncol 2020. [DOI: 10.1016/s0167-8140(21)00475-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
36
|
Bonney A, Wagner CA, Siva S, Callahan J, Le Roux PY, Pascoe D, Irving L, Hofman M, Steinfort D. CORRELATION OF POSITRON EMISSION TOMOGRAPHY PERFUSION-VENTILATION MATCHING WITH CT DENSITOMETRY IN SEVERE EMPHYSEMA. Chest 2020. [DOI: 10.1016/j.chest.2020.05.338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
|
37
|
De Bruycker A, Spiessens A, Dirix P, Koutsouvelis N, Semac I, Liefhooghe N, Gomez-Iturriaga A, Everaerts W, Otte F, Papachristofilou A, Scorsetti M, Shelan M, Siva S, Ameye F, Guckenberger M, Heikkilä R, Putora PM, Zapatero A, Conde-Moreno A, Couñago F, Vanhoutte F, Goetghebeur E, Reynders D, Zilli T, Ost P. PEACE V - Salvage Treatment of OligoRecurrent nodal prostate cancer Metastases (STORM): a study protocol for a randomized controlled phase II trial. BMC Cancer 2020; 20:406. [PMID: 32398040 PMCID: PMC7216526 DOI: 10.1186/s12885-020-06911-4] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Accepted: 04/28/2020] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Pelvic nodal recurrences are being increasingly diagnosed with the introduction of new molecular imaging techniques, like choline and PSMA PET-CT, in the restaging of recurrent prostate cancer (PCa). At this moment, there are no specific treatment recommendations for patients with limited nodal recurrences and different locoregional treatment approaches are currently being used, mostly by means of metastasis-directed therapies (MDT): salvage lymph node dissection (sLND) or stereotactic body radiotherapy (SBRT). Since the majority of patients treated with MDT relapse within 2 years in adjacent lymph node regions, with an estimated median time to progression of 12-18 months, combining MDT with whole pelvic radiotherapy (WPRT) may improve oncological outcomes in these patients. The aim of this prospective multicentre randomized controlled phase II trial is to assess the impact of the addition of WPRT to MDT and short-term androgen deprivation therapy (ADT) on metastasis-free survival (MFS) in the setting of oligorecurrent pelvic nodal recurrence. METHODS & DESIGN Patients diagnosed with PET-detected pelvic nodal oligorecurrence (≤5 nodes) following radical local treatment for PCa, will be randomized in a 1:1 ratio between arm A: MDT and 6 months of ADT, or arm B: WPRT added to MDT and 6 months of ADT. Patients will be stratified by type of PET-tracer (choline, FACBC or PSMA) and by type of MDT (sLND or SBRT). The primary endpoint is MFS and the secondary endpoints include clinical and biochemical progression-free survival (PFS), prostate cancer specific survival, quality of life (QoL), toxicity and time to castration-resistant prostate cancer (CRPC) and to palliative ADT. Estimated study completion: December 31, 2023. DISCUSSION This is the first prospective multicentre randomized phase II trial assessing the potential of combined WPRT and MDT as compared to MDT alone on MFS for patients with nodal oligorecurrent PCa. TRIAL REGISTRATION ClinicalTrials.gov Identifier: NCT03569241, registered June 14, 2018, ; Identifier on Swiss National Clinical Trials Portal (SNCTP): SNCTP000002947, registered June 14, 2018.
Collapse
Affiliation(s)
- A De Bruycker
- Department of Radiation oncology and experimental cancer research, Ghent University Hospital, Ghent, Belgium
| | - A Spiessens
- Department of Radiation oncology and experimental cancer research, Ghent University Hospital, Ghent, Belgium
| | - P Dirix
- Department of Radiation oncology, Iridium Cancer Network, GZ Antwerp, Antwerp, Belgium
| | - N Koutsouvelis
- Department of Radiation oncology, Geneva University Hospital, Geneva, Switzerland
| | - I Semac
- Department of Radiation oncology, Geneva University Hospital, Geneva, Switzerland
- Clinical Research Center, Geneva University Hospital and Faculty of Medicine, Geneva, Switzerland
| | - N Liefhooghe
- Department of Radiation oncology, AZ Groeninge, Kortrijk, Belgium
| | - A Gomez-Iturriaga
- Cruces University Hospital (Biocruces Health Research Institute), Barakaldo, Spain
| | - W Everaerts
- Department of Development and Regeneration, KU Leuven, Leuven, Belgium
| | - F Otte
- Department of Radiation oncology, Jules Bordet Institute and Hôpital Erasme, University Clinics of Brussels, Université Libre de Bruxelles, Brussels, Belgium
| | - A Papachristofilou
- Clinic of Radiotherapy & Radiation Oncology, University Hospital Basel, Basel, Switzerland
| | - M Scorsetti
- Humanitas Clinical and Research Hospital, IRCSS, Radiotherapy and Radiosurgery Department, Rozzano, Milan, Italy
| | - M Shelan
- Department of Radiation oncology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - S Siva
- Epworth Healthcare, University of Melbourne, Melbourne, Australia
| | - F Ameye
- Department of Urology, AZ Maria-Middelares Ghent, Ghent, Belgium
| | - M Guckenberger
- Department of Radiation Oncology, University Hospital Zürich, University of Zurich, Zürich, Switzerland
| | - R Heikkilä
- Department of Oncology, Oslo University Hospital, Oslo, Norway
| | - P M Putora
- Department of Radiation oncology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
- Department of Radiation Oncology, Kantonsspital St. Gallen, St. Gallen, Switzerland
| | - A Zapatero
- University Hospital La Princesa, Madrid, Spain
| | - A Conde-Moreno
- Department of Radiation oncology, Hospital Universitari i Politècnic la Fe, Valencia, Spain
| | - F Couñago
- Department of Radiation oncology, University Hospital of Quirón, Madrid, Spain
| | - F Vanhoutte
- Department of Radiation oncology and experimental cancer research, Ghent University Hospital, Ghent, Belgium
| | - E Goetghebeur
- Department of Applied Mathematics, Computer Science and Statistics, Ghent University, Ghent, Belgium
| | - D Reynders
- Department of Applied Mathematics, Computer Science and Statistics, Ghent University, Ghent, Belgium
| | - T Zilli
- Department of Radiation oncology, Geneva University Hospital, Geneva, Switzerland.
| | - P Ost
- Department of Radiation oncology and experimental cancer research, Ghent University Hospital, Ghent, Belgium.
| |
Collapse
|
38
|
Bucknell N, Kron T, Herschtal A, Irving L, Siva S, Ball D. P2.17-21 A Post-Hoc Analysis of TROG 09.02 (CHISEL) Phase III Trial Investigating Pulmonary Function Changes After SABR and Conformal Radiation Therapy. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
39
|
Siva S, Bressel M, Loi S, Sandhu S, Tran B, Mooi J, Lewin J, Azad A, Colyer D, Shaw M, Chander S, Cuff K, Wood S, Lawrentschuk N, Murphy D, Pryor D. MA01.01 Safety of Pembrolizumab Combined with Stereotactic Ablative Body Radiotherapy (SABR) for Pulmonary Oligometastases. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.493] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
40
|
Frowen J, Gough K, Phipps-Nelson J, Hughes R, Siva S, Drosdowsky A, Solomon B, Kiss N, Duffy M, Ball D. OA05.01 A Prospective Study of Swallowing and Voice Outcomes After Treatment for Small-Cell Lung Cancer. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
41
|
Zaorsky N, Lehrer E, Kothari G, Louie A, Siva S. Stereotactic Radiation Therapy for Renal Cell Carcinoma Metastases: A Meta-Analysis of 28 Studies. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.1961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
42
|
Louie A, Correa R, Boldt G, Zaorsky N, Siva S. The Emerging Role of Stereotactic Radiotherapy in Primary Renal Cell Cancer: A Systematic Review of the Literature. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.1954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
43
|
Xing D, Siva S, Hanna GG. The Abscopal Effect of Stereotactic Radiotherapy and Immunotherapy: Fool's Gold or El Dorado? Clin Oncol (R Coll Radiol) 2019; 31:432-443. [PMID: 31005381 DOI: 10.1016/j.clon.2019.04.006] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Accepted: 03/16/2019] [Indexed: 12/26/2022]
Abstract
An 'abscopal' effect if often used to refer to distant tumour regression after localised irradiation. Since the first report of the abscopal effect in the 1950s, well-documented cases with radiotherapy alone are very rare. It is widely accepted that the immune response plays an important role in the abscopal effect, although the mechanism is still unclear. With the recent success of cancer immunotherapy, there is growing interest in combining immunotherapy with radiotherapy to boost abscopal response rates. Compared with conventional radiotherapy, stereotactic ablative radiotherapy (SABR) not only delivers ablative dose to the tumour, but may also induce robust immune responses. In this review we examine studies that combine SABR and immunotherapy. We review the preclinical rationale for SABR and immunotherapy combinations, the case for and against abscopal effects, and the current landscape of clinical trials.
Collapse
Affiliation(s)
- D Xing
- Division of Radiation Oncology, Peter MacCallum Cancer Centre, Melbourne, Australia
| | - S Siva
- Division of Radiation Oncology, Peter MacCallum Cancer Centre, Melbourne, Australia; Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, Australia
| | - G G Hanna
- Division of Radiation Oncology, Peter MacCallum Cancer Centre, Melbourne, Australia; Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, Australia.
| |
Collapse
|
44
|
Newman S, Bucknell N, Bressel M, Tran P, Campbell B, Haghighi N, Kok D, MacManus M, Phillips C, Shaw M, Wirth A, Wheeler G, Ball D, Siva S. EP-1351 Long-term survival with FDG-PET directed therapy in NSCLC with synchronous solitary brain metastasis. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)31771-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
45
|
Kroeze S, Fritz C, Kaul D, Blanck O, Kahl K, Roeder F, Siva S, Verhoeff J, Grosu A, Schymalla M, Glatzer M, Szücs M, Geier M, Mose S, Sackerer I, Lohaus F, Eckert F, Guckenberger M. OC-0059 Stereotactic radiotherapy for oligoprogressive NSCLC: clinical scenarios affecting survival. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)30479-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
46
|
Martin J, Blanchard P, Greer P, Keall P, Pryor D, Sidhom M, Siva S, Supiot S, Turner S. SP-0677 Oligometastatic Prostate SBRT: The How, What, Where and When. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)31097-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
47
|
Keall P, Nguyen D, O'Brien R, Hewson E, Ball H, Poulsen P, Booth J, Greer P, Hunter P, Wilton L, Bromley R, Kipritidis J, Eade T, Kneebone A, Hruby G, Moodie T, Hayden A, Turner S, Arumugam S, Sidhom M, Hardcastle N, Siva S, Tai K, Gebski V, Martin J. PO-0842 Real-Time tracking improves treatment: The TROG Stereo Prostate Ablative Radiotherapy with KIM trial. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)31262-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
48
|
Hardcastle N, Cook O, Mitchell P, Siva S. OC-0608 Credentialing of spine stereotactic ablative body radiotherapy in a multi-centre trial. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)31028-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
49
|
Kroeze S, Fritz C, Kaul D, Blanck O, Kahl K, Roeder F, Siva S, Verhoeff J, Grosu A, Schymalla M, Glatzer M, Szuecs M, Geier M, Skazikis G, Sackerer I, Lohaus F, Eckert F, Guckenberger M. Stereotactic radiotherapy concurrent to immune or targeted therapy for oligometastatic NSCLC: Clinical scenarios affecting survival. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz063.071] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
50
|
Correa R, Siva S, Staehler M, Warner A, Gandhidasan S, Ponsky L, Ellis R, Kaplan I, Mahadevan A, Chu W, Swaminath A, Onishi H, Teh B, Lo S, Muacevic A, Louie A. Renal SABR in Patients with a Solitary Kidney: An Individual-Patient Pooled Analysis from the International Radiosurgery Oncology Consortium for Kidney (IROCK). Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.06.275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|