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Meraouna Y, Blanchard P, Losa S, Labib A, Krhili S, Pommier P, Crehange G, Flam T, Cosset JM, Kissel M. Salvage low-dose-rate brachytherapy for locally recurrent prostate cancer after definitive irradiation. Clin Transl Radiat Oncol 2024; 48:100809. [PMID: 39027689 PMCID: PMC11254530 DOI: 10.1016/j.ctro.2024.100809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 06/14/2024] [Accepted: 06/15/2024] [Indexed: 07/20/2024] Open
Abstract
Purpose The optimal management of locally recurrent prostate cancer after definitive irradiation is still unclear but local salvage treatments are gaining interest. A retrospective, single-institution analysis of clinical outcomes and treatment-related toxicity after salvage I-125 low-dose-rate (LDR) brachytherapy (BT) for locally-recurrent prostate cancer was conducted in a Comprehensive Cancer Center. Patients and methods A total of 94 patients treated with salvage LDR-BT between 2006 and 2021 were included. The target volume was either the whole-gland +/- a boost on the GTV, the hemigland, or only the GTV. The prescribed dose ranged from 90 to 145 Gy. Toxicity was graded by Common Terminology Criteria for Adverse Events (CTCAE) v5.0. Results Median follow-up was 34 months. Initial radiotherapy was external beam radiotherapy in 73 patients (78 %) with a median dose of 76 Gy and I-125 BT in 21 patients (22 %) with a prescribed dose of 145 Gy. Median PSA at salvage was 3.75 ng/ml with a median interval between first and salvage irradiation of 9.4 years. Salvage brachytherapy was associated with androgen deprivation therapy for 32 % of the patients. Only 4 % of the patients were castrate-resistant. Failure free survival was 82 % at 2 years and 66 % at 3 years. The only factors associated with failure-free survival on multivariate analysis were hormonosensitivity at relapse and European Association of Urology (EAU) prognostic group. Late grade 3 urinary and rectal toxicities occurred in 12 % and 1 % of the patients respectively.No significant difference in toxicity or efficacy was observed between the three implant volume groups. Conclusion The efficacy and toxicity results are consistent with those in the LDR group of the MASTER meta-analysis. Salvage BT confirms to be an effective and safe option for locally recurrent prostate cancer. A focal approach could be interesting to reduce late severe toxicities, especially urinary.
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Affiliation(s)
- Y. Meraouna
- Radiotherapy Department, Institut Curie, 26 rue d’Ulm, 75005 Paris, France
- Faculté de médecine Sorbonne Université, 91-105 Boulevard de l’Hôpital, 75013 Paris, France
| | - P. Blanchard
- Radiotherapy Department, Gustave Roussy, 114 Boulevard Edouard Vaillant, 94220 Villejuif, France
| | - S. Losa
- Physics Department, Institut Curie, 26 rue d’Ulm, 75005 Paris, France
| | - A. Labib
- Radiotherapy Department, Institut Curie, 26 rue d’Ulm, 75005 Paris, France
| | - S. Krhili
- Radiotherapy Department, Institut Curie, 26 rue d’Ulm, 75005 Paris, France
| | - P. Pommier
- Radiotherapy Department, Institut Curie, 26 rue d’Ulm, 75005 Paris, France
| | - G. Crehange
- Radiotherapy Department, Institut Curie, 26 rue d’Ulm, 75005 Paris, France
| | - T. Flam
- Radiotherapy Department, Institut Curie, 26 rue d’Ulm, 75005 Paris, France
- Urology Department, Clinique Saint Jean de Dieu, 2 rue Rousselet, 75007 Paris, France
| | - J-M. Cosset
- Radiotherapy Department, Centre Charlebourg – La Défense – Amethyst Radiothérapie, 65 Avenue Foch, 92250 La Garenne-Colombes, France
| | - M. Kissel
- Radiotherapy Department, Institut Curie, 26 rue d’Ulm, 75005 Paris, France
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Willigenburg T, van Son MJ, van de Pol SMG, Eppinga WSC, Lagendijk JJW, de Boer HCJ, Moerland MA, van der Voort van Zyp JRN, Peters M. Development and internal validation of multivariable prediction models for biochemical failure after MRI-guided focal salvage high-dose-rate brachytherapy for radiorecurrent prostate cancer. Clin Transl Radiat Oncol 2021; 30:7-14. [PMID: 34278009 PMCID: PMC8261471 DOI: 10.1016/j.ctro.2021.06.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 06/03/2021] [Accepted: 06/23/2021] [Indexed: 12/23/2022] Open
Abstract
Background and purpose Magnetic resonance-guided focal salvage high-dose-rate brachytherapy (FS-HDR-BT) for radiorecurrent prostate cancer (PCa) shows low toxicity rates. However, biochemical failure (BF) after treatment occurs frequently. We developed two prediction models for BF (Phoenix definition) with the aim of enhancing patient counselling before FS-HDR-BT and during follow-up. Materials and methods A prospective cohort of 150 radiorecurrent PCa patients treated with FS-HDR-BT between 2013 and 2020 was used for model development and internal validation. Multivariable Cox Proportional Hazards regression was applied. For model 1, only pre-salvage variables were included as candidate predictors. For model 2, additional (post-)salvage characteristics were tested. After calibration, nomograms and webtools were constructed. Finally, three risk groups were identified. Results Sixty-one patients (41%) experienced BF. At baseline (model 1), age, gross tumour volume, pre-salvage PSA, and pre-salvage PSA doubling time (PSADT) were predictive of BF. During follow-up (model 2), age, pre-salvage PSA and PSADT, seminal vesicle involvement, post-salvage time to PSA nadir, and percentage PSA reduction were predictive of BF. The adjusted C-statistics were 0.73 (95% CI: 0.66-0.81) and 0.84 (95% CI: 0.78-0.90), respectively, with acceptable calibration. Estimated 2-year biochemical disease-free survival for the low-, intermediate-, and high-risk groups were 84%, 70%, and 31% (model 1), and 100%, 71%, and 5% (model 2). Conclusion Two models are provided for prediction of BF in patients with radiorecurrent PCa treated with FS-HDR-BT. Based on pre- and post-salvage characteristics, we are able to identify patients with a high risk of BF. These findings can aid patient counselling for FS-HDR-BT.
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Affiliation(s)
- Thomas Willigenburg
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Marieke J van Son
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Sandrine M G van de Pol
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Wietse S C Eppinga
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Jan J W Lagendijk
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Hans C J de Boer
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Marinus A Moerland
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht, The Netherlands
| | | | - Max Peters
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht, The Netherlands
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Kulkarni AR, Athavale AM, Sahni A, Sukhal S, Saini A, Itteera M, Zhukovsky S, Vernik J, Abraham M, Joshi A, Amarah A, Ruiz J, Hart PD, Kulkarni H. Deep learning model to predict the need for mechanical ventilation using chest X-ray images in hospitalised patients with COVID-19. BMJ INNOVATIONS 2021; 7:261-270. [PMID: 34192015 PMCID: PMC7931213 DOI: 10.1136/bmjinnov-2020-000593] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 01/18/2021] [Accepted: 02/13/2021] [Indexed: 01/28/2023]
Abstract
OBJECTIVES There exists a wide gap in the availability of mechanical ventilator devices and their acute need in the context of the COVID-19 pandemic. An initial triaging method that accurately identifies the need for mechanical ventilation in hospitalised patients with COVID-19 is needed. We aimed to investigate if a potentially deteriorating clinical course in hospitalised patients with COVID-19 can be detected using all X-ray images taken during hospitalisation. METHODS We exploited the well-established DenseNet121 deep learning architecture for this purpose on 663 X-ray images acquired from 528 hospitalised patients with COVID-19. Two Pulmonary and Critical Care experts blindly and independently evaluated the same X-ray images for the purpose of validation. RESULTS We found that our deep learning model predicted the need for mechanical ventilation with a high accuracy, sensitivity and specificity (90.06%, 86.34% and 84.38%, respectively). This prediction was done approximately 3 days ahead of the actual intubation event. Our model also outperformed two Pulmonary and Critical Care experts who evaluated the same X-ray images and provided an incremental accuracy of 7.24%-13.25%. CONCLUSIONS Our deep learning model accurately predicted the need for mechanical ventilation early during hospitalisation of patients with COVID-19. Until effective preventive or treatment measures become widely available for patients with COVID-19, prognostic stratification as provided by our model is likely to be highly valuable.
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Affiliation(s)
- Anoop R Kulkarni
- Innotomy Consulting, Bengaluru, India
- Lata Medical Research Foundation, Nagpur, India
| | - Ambarish M Athavale
- Department of Medicine, Division of Nephrology, Cook County Hospital, Chicago, Illinois, USA
| | - Ashima Sahni
- Division of Pulmonary, Critical Care, Sleep, and Allergy, University of Illinois Hospital and Health Sciences System, Chicago, Illinois, USA
| | - Shashvat Sukhal
- Department of Medicine, Division of Pulmonary and Critical Care, Cook County Hospital, Chicago, Illinois, USA
| | - Abhimanyu Saini
- Department of Medicine, Division of Cardiology, Cook County Hospital, Chicago, Illinois, USA
| | - Mathew Itteera
- Department of Medicine, Division of Nephrology, Cook County Hospital, Chicago, Illinois, USA
| | - Sara Zhukovsky
- Rush Medical College, Rush University Medical Center, Chicago, Illinois, USA
| | - Jane Vernik
- Department of Medicine, Division of Nephrology, Cook County Hospital, Chicago, Illinois, USA
| | - Mohan Abraham
- Department of Medicine, Division of Nephrology, Cook County Hospital, Chicago, Illinois, USA
| | - Amit Joshi
- Department of Medicine, Division of Nephrology, Cook County Hospital, Chicago, Illinois, USA
| | - Amatur Amarah
- Department of Medicine, Division of Nephrology, Cook County Hospital, Chicago, Illinois, USA
| | - Juan Ruiz
- Department of Medicine, Division of Nephrology, Cook County Hospital, Chicago, Illinois, USA
| | - Peter D Hart
- Department of Medicine, Division of Nephrology, Cook County Hospital, Chicago, Illinois, USA
| | - Hemant Kulkarni
- Lata Medical Research Foundation, Nagpur, India
- M&H Research LLC, San Antonio, Texas, USA
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Salvage low dose rate brachytherapy for prostate cancer recurrence following definitive external beam radiation therapy. Radiother Oncol 2020; 155:42-47. [PMID: 33075391 DOI: 10.1016/j.radonc.2020.10.021] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 09/25/2020] [Accepted: 10/12/2020] [Indexed: 11/24/2022]
Abstract
PURPOSE We sought to describe the safety and efficacy of salvage low dose rate (LDR) brachytherapy for local prostate cancer recurrence following definitive RT. MATERIALS AND METHODS We included patients from two prospectively maintained institutional databases who underwent salvage LDR brachytherapy for biopsy confirmed intra-prostatic recurrence following primary RT. All patients were without evidence of metastatic disease. Freedom from biochemical failure (FFbF), prostate cancer specific survival (PCaSS), and overall survival (OS) were determined using the Kaplan-Meier estimates. Cox proportional hazard models were used to identify factors predictive of FFbF. Toxicity was graded by Common Terminology Criteria for Adverse Events (CTCAE) v5.0. RESULTS 108 patients were included. Median follow-up was 6.3 years. The 5- and 10-year actuarial survival outcomes were as follows: FFbF, 63.1% and 52.0%; PCaSS, 90.5% and 77.8%; OS, 80.9% and 56.7%. On multivariate modeling, increasing grade group (HR 1.41, 95% CI 1.02-1.95, p = 0.036) and initial PSA at diagnosis (HR 1.02, 95% CI 1.004-1.05, p = 0.022) were associated with worse FFbF. Grade 3 toxicity occurred in 16.7% of patients; including genitourinary events in 15.7% and gastrointestinal events in 2.8% of patients. IPSS scores increased following implant, peaking at 2 months (median IPSS 20, p = 0.002) and thereafter remaining elevated throughout follow-up. CONCLUSIONS Salvage LDR brachytherapy is safe and efficacious, with acceptable grade 3+ toxicity and good biochemical control on long-term follow-up. Patients with higher grade group and higher PSA at initial diagnosis may be at increased risk for biochemical failure.
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Efficacy and toxicity outcomes for patients treated with focal salvage high dose rate brachytherapy for locally recurrent prostate cancer. Clin Transl Radiat Oncol 2020; 23:20-26. [PMID: 32368626 PMCID: PMC7186261 DOI: 10.1016/j.ctro.2020.03.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 03/24/2020] [Accepted: 03/25/2020] [Indexed: 12/15/2022] Open
Abstract
Local recurrence of prostate cancer may be treated with salvage therapies. Focal salvage high dose rate brachytherapy provides good biochemical control. Severe genitourinary and gastrointestinal toxicities are low.
Introduction Isolated local recurrence of prostate cancer following primary radiotherapy or brachytherapy may be treated with focal salvage high dose rate brachytherapy, although there remains an absence of high quality evidence to support this approach. Methods Men with prostate cancer treated consecutively between 2015 and 2018 using 19 Gy in a single fraction high dose rate brachytherapy (HDR) for locally recurrent prostate cancer were identified from an institutional database. Univariable analysis was performed to evaluate the relationship between patient, disease and treatment factors with biochemical progression free survival (bPFS). Results 43 patients were eligible for evaluation. Median follow up duration was 26 months (range 1–60). Median bPFS was 35 months (95% confidence interval 25.6–44.4). Kaplan-Meier estimates for bPFS at 1, 2 and 3 years post salvage were 95.2%, 70.6% and 41.8% respectively. On univariable Cox regression analysis, only nadir PSA was significantly associated with bPFS although the majority of patients were also treated with androgen deprivation therapy. Only one late grade 3 genitourinary toxicity was observed. Conclusion Focal salvage HDR brachytherapy may provide good biochemical control with a low risk of severe toxicity. Further evaluation within clinical trials are needed to establish its role in the management of locally recurrent prostate cancer.
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Henríquez López I, González-San Segundo C, Vegas JO, Gutierrez C, Hervas A, Cabeza Rodriguez MÁ, Valero Albarrán J, Rodríguez Villalba S, Álvarez Gonzalez A, Sancho Pardo G, Zapatero A, Álvaro PC. Salvage brachytherapy for locally-recurrent prostate cancer after radiation therapy: A comparison of efficacy and toxicity outcomes with high-dose rate and low-dose rate brachytherapy. Radiother Oncol 2019; 141:156-163. [DOI: 10.1016/j.radonc.2019.09.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Revised: 08/30/2019] [Accepted: 09/05/2019] [Indexed: 12/23/2022]
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Eminaga O, Al-Hamad O, Boegemann M, Breil B, Semjonow A. Combination possibility and deep learning model as clinical decision-aided approach for prostate cancer. Health Informatics J 2019; 26:945-962. [PMID: 31238766 DOI: 10.1177/1460458219855884] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
This study aims to introduce as proof of concept a combination model for classification of prostate cancer using deep learning approaches. We utilized patients with prostate cancer who underwent surgical treatment representing the various conditions of disease progression. All possible combinations of significant variables from logistic regression and correlation analyses were determined from study data sets. The combination possibility and deep learning model was developed to predict these combinations that represented clinically meaningful patient's subgroups. The observed relative frequencies of different tumor stages and Gleason score Gls changes from biopsy to prostatectomy were available for each group. Deep learning models and seven machine learning approaches were compared for the classification performance of Gleason score changes and pT2 stage. Deep models achieved the highest F1 scores by pT2 tumors (0.849) and Gls change (0.574). Combination possibility and deep learning model is a useful decision-aided tool for prostate cancer and to group patients with prostate cancer into clinically meaningful groups.
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Affiliation(s)
- Okyaz Eminaga
- Stanford University School of Medicine, USA; University Hospital of Cologne, Germany
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8
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Murgic J, Morton G, Loblaw A, D'Alimonte L, Ravi A, Wronski M, Davidson M, Haider M, Commisso K, Zhang L, Chung HT. Focal Salvage High Dose-Rate Brachytherapy for Locally Recurrent Prostate Cancer After Primary Radiation Therapy Failure: Results From a Prospective Clinical Trial. Int J Radiat Oncol Biol Phys 2018; 102:561-567. [PMID: 30244878 DOI: 10.1016/j.ijrobp.2018.06.039] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Revised: 06/13/2018] [Accepted: 06/20/2018] [Indexed: 11/24/2022]
Abstract
PURPOSE Although increasing data support whole-gland salvage therapy for recurrent prostate cancer, toxicity remains a significant concern. We hypothesized that focal therapy, treating only a portion of the prostate containing recurrent disease, might be equally effective and associated with less toxicity. The objectives of this prospective study were to explore the toxicities, quality of life, and efficacy of focal salvage high-dose-rate (HDR) brachytherapy in patients with multiparametric magnetic resonance imaging (MRI)-visible, biopsy-confirmed local recurrence after previous definitive external beam radiation therapy. MATERIALS AND METHODS Fifteen patients with locally recurrent prostate cancer after external beam radiation therapy were enrolled in this prospective study. Patients were treated with ultrasound-based HDR brachytherapy with a prescription dose of 27 Gy divided in 2 implants, separated by 1 week, to the clinical target volume, which was defined as the quadrant of the prostate where the MRI-visible recurrent lesion was located. Toxicity, quality of life, and biochemical outcomes were analyzed. Postsalvage MRI was performed to assess radiation therapy response. RESULTS Median follow-up was 36 months. The median size of the recurrence on MRI was 9 mm (range, 7-20 mm), and clinical target volume at the time of HDR was 6.1 mL (range, 2.2-16.1 mL). Only one grade 3 genitourinary toxicity event was observed. No urinary retention was observed. Three-year prostate-specific antigen failure-free rate was 61%. There was no significant change in Expanded Prostate Cancer Index Composite urinary or bowel domains over time. Of the 14 patients who had a post-HDR MRI, 12 had a treatment response. CONCLUSIONS Our results suggest that focal salvage HDR brachytherapy is well tolerated and promising. External validation is needed.
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Affiliation(s)
- Jure Murgic
- Department of Radiation Oncology, Odette Cancer Center, Sunnybrook Health Sciences Center, Toronto, Ontario, Canada; Department of Radiation Oncology, University of Toronto, Toronto, Ontario, Canada
| | - Gerard Morton
- Department of Radiation Oncology, Odette Cancer Center, Sunnybrook Health Sciences Center, Toronto, Ontario, Canada; Department of Radiation Oncology, University of Toronto, Toronto, Ontario, Canada
| | - Andrew Loblaw
- Department of Radiation Oncology, Odette Cancer Center, Sunnybrook Health Sciences Center, Toronto, Ontario, Canada; Department of Radiation Oncology, University of Toronto, Toronto, Ontario, Canada
| | - Laura D'Alimonte
- Department of Radiation Oncology, Odette Cancer Center, Sunnybrook Health Sciences Center, Toronto, Ontario, Canada; Department of Radiation Oncology, University of Toronto, Toronto, Ontario, Canada
| | - Ananth Ravi
- Department of Radiation Oncology, University of Toronto, Toronto, Ontario, Canada; Department of Medical Physics, Odette Cancer Center, Sunnybrook Health Sciences Center, Toronto, Ontario, Canada
| | - Matt Wronski
- Department of Radiation Oncology, University of Toronto, Toronto, Ontario, Canada; Department of Medical Physics, Odette Cancer Center, Sunnybrook Health Sciences Center, Toronto, Ontario, Canada
| | - Melanie Davidson
- Department of Radiation Oncology, University of Toronto, Toronto, Ontario, Canada; Department of Medical Physics, Odette Cancer Center, Sunnybrook Health Sciences Center, Toronto, Ontario, Canada
| | - Masoom Haider
- Department of Medical Imaging, Sunnybrook Health Sciences Center, Toronto, Ontario, Canada; Department of Medical Imaging, University of Toronto, Toronto, Ontario, Canada
| | - Kristina Commisso
- Department of Radiation Oncology, Odette Cancer Center, Sunnybrook Health Sciences Center, Toronto, Ontario, Canada
| | - Liying Zhang
- Department of Radiation Oncology, Odette Cancer Center, Sunnybrook Health Sciences Center, Toronto, Ontario, Canada
| | - Hans T Chung
- Department of Radiation Oncology, Odette Cancer Center, Sunnybrook Health Sciences Center, Toronto, Ontario, Canada; Department of Radiation Oncology, University of Toronto, Toronto, Ontario, Canada.
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Barbera F, Triggiani L, Buglione M, Ghirardelli P, Vitali P, Caraffini B, Borghetti P, Greco D, Bardoscia L, Pasinetti N, Costa L, Maddalo M, Ghedi B, La Face B, Magrini SM. Salvage Low Dose Rate Brachytherapy For Recurrent Prostate Cancer After External Beam Radiotherapy: Results From A Single Institution With Focus On Toxicity And Functional Outcomes. CLINICAL MEDICINE INSIGHTS-ONCOLOGY 2017; 11:1179554917738765. [PMID: 29151782 PMCID: PMC5680931 DOI: 10.1177/1179554917738765] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Accepted: 09/24/2017] [Indexed: 12/18/2022]
Abstract
Background/aim: Low dose rate brachytherapy has been used as salvage therapy for locally recurrent prostate cancer (PC) after primary external beam radiation therapy (EBRT), along with surgery and cryotherapy. All these techniques, in particular, when applied to the whole gland, involve a relatively high risk of toxicity and may worsen the patient’s quality of life. Our aim is to evaluate the results of whole-gland salvage brachytherapy (SBT) after primary EBRT in terms of toxicity, functional outcomes, and efficacy. Materials and methods: We retrospectively reviewed clinical data on 19 patients consecutively treated with SBT at our institution between June 2012 and November 2015. Local recurrences were identified with 11C-choline positron emission tomography/computed tomography and pelvic magnetic resonance imaging after biochemical recurrence according to Phoenix criteria (prostate-specific antigen nadir + 2). Low dose rate brachytherapy was performed by 125I permanent seeds implantation to the whole prostate gland, with a prescription dose of 130 Gy. At the time of SBT, only 2 patients were receiving androgen deprivation therapy. Acute and late toxicities were recorded using the CTCAE 4.0 scoring system. Quality of life was assessed using IPSS (International Prostate Symptoms Score) and IIEF (International Index of Erectile Function) questionnaires at baseline and 6, 12, and 24 months after SBT, and the respective mean values were compared using Student t test. Biochemical relapse-free survival (BRFS) was also calculated. Results: Median follow-up after SBT was 24 months. Of 19 patients, 2 patients experienced a G3 cystitis (10.2%) and 1 patient experienced a G4 proctitis (5.3%), respectively. Mean pre-SBT IPSS scores and 6, 12, and 24 months after SBT were 5.84, 10.22, 15.72, and 8.10, respectively. Mean pre-SBT IIEF scores and 6, 12, and 24 months after SBT were 8.42, 3.55, 7.89, and 6.40, respectively. At the time of analysis, only 2 patients showed a biochemical relapse (3-year BRFS 85.2%). The Student t test demonstrated a worsening of functional outcome 6 months and 1 year after treatment but a subsequent improvement 2 years after SBT. Conclusions: Salvage brachytherapy for recurrent PC after primary EBRT seems to be a feasible treatment for selected patients. Our series revealed a severe toxicity peak 6 months and 1 year after local re-treatment and then they decrease. Early BRFS rates are good. However, these are very preliminary results so further patient accrual, long-term follow-up, and prospective trials are needed in the future.
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Affiliation(s)
- F Barbera
- Radiation Oncology Department, University and Spedali Civili Hospital, Brescia, Italy
| | - L Triggiani
- Radiation Oncology Department, University and Spedali Civili Hospital, Brescia, Italy
| | - M Buglione
- Radiation Oncology Department, University and Spedali Civili Hospital, Brescia, Italy
| | - P Ghirardelli
- Radiation Oncology Department, University and Spedali Civili Hospital, Brescia, Italy
| | - P Vitali
- Radiation Oncology Department, University and Spedali Civili Hospital, Brescia, Italy
| | - B Caraffini
- Radiation Oncology Department, University and Spedali Civili Hospital, Brescia, Italy
| | - P Borghetti
- Radiation Oncology Department, University and Spedali Civili Hospital, Brescia, Italy
| | - D Greco
- Radiation Oncology Department, University and Spedali Civili Hospital, Brescia, Italy
| | - L Bardoscia
- Radiation Oncology Department, University and Spedali Civili Hospital, Brescia, Italy
| | - N Pasinetti
- Radiation Oncology Department, University and Spedali Civili Hospital, Brescia, Italy
| | - L Costa
- Radiation Oncology Department, University and Spedali Civili Hospital, Brescia, Italy
| | - M Maddalo
- Radiation Oncology Department, University and Spedali Civili Hospital, Brescia, Italy
| | - B Ghedi
- Medical Physics Department, University and Spedali Civili Hospital, Brescia, Italy
| | - B La Face
- Radiation Oncology Department, University and Spedali Civili Hospital, Brescia, Italy
| | - S M Magrini
- Radiation Oncology Department, University and Spedali Civili Hospital, Brescia, Italy
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Salvage brachytherapy for recurrent prostate cancer after definitive radiation therapy: A comparison of low-dose-rate and high-dose-rate brachytherapy and the importance of prostate-specific antigen doubling time. Brachytherapy 2017; 16:1091-1098. [DOI: 10.1016/j.brachy.2017.07.013] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Revised: 07/19/2017] [Accepted: 07/21/2017] [Indexed: 11/20/2022]
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Peters M, Moerland MA, van der Voort van Zyp JR. Salvage brachytherapy for radiorecurrent prostate cancer: Searching for safety and success. Brachytherapy 2017; 16:1099-1100. [DOI: 10.1016/j.brachy.2017.08.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Accepted: 08/14/2017] [Indexed: 11/26/2022]
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12
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Peters M, Kanthabalan A, Shah TT, McCartan N, Moore CM, Arya M, van der Voort van Zyp JR, Moerland MA, Hindley RG, Emberton M, Ahmed HU. Development and internal validation of prediction models for biochemical failure and composite failure after focal salvage high intensity focused ultrasound for local radiorecurrent prostate cancer: Presentation of risk scores for individual patient prognoses. Urol Oncol 2017; 36:13.e1-13.e10. [PMID: 28927782 DOI: 10.1016/j.urolonc.2017.08.022] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2017] [Revised: 07/29/2017] [Accepted: 08/22/2017] [Indexed: 10/18/2022]
Abstract
PURPOSE Patient selection for focal salvage remains difficult. Therefore, we developed and internally validated prediction models for biochemical failure (BF) and a composite endpoint (CE) following focal salvage high intensity focused ultrasound (HIFU) for radiorecurrent prostate cancer. MATERIALS AND METHODS A prospective HIFU registry identified 150 cases (November 2006-August 2015). Recurrence was assessed with multiparametric magnetic resonance imaging (MRI) combined with template prostate mapping biopsies, targeted biopsies, or systematic transrectal ultrasound-guided biopsies. Metastatic disease was ruled out with a positron emission tomography-computed tomography and a bone scan. Focal salvage HIFU consisted of quadrant-ablation, hemi-ablation, or index-lesion ablation. Cox-regression was used for BF (Phoenix-definition) and CE (BF/MRI+/biopsies+/local or systemic treatment/metastases+/prostate cancer specific mortality+). Internal validation was performed using bootstrap resampling (500 datasets) after which C-statistic and hazard ratios were adjusted. Models were calibrated and risk scores created. RESULTS Median follow-up was 35 months (interquartile range: 22-52). Median biochemical disease-free survival (DFS) was 33 months (95% CI: 23-45). Median CE-free survival was 24 months (95% CI: 21-35). After multivariable analysis, DFS interval after primary radiotherapy, presalvage prostate-specific antigen (PSA), PSA-doubling time, prostatic volume, and T-stage (both MRI based) predicted BF. For the CE, PSA-doubling time was not predictive but additionally, primary Gleason score was. The adjusted C-statistics were 0.68 and 0.64 for BF and CE, respectively. Calibration was accurate until 48 months. The risk scores showed 3 groups, with biochemical DFS of 60%, 35%, and 7% and CE-free survival of 40%, 24%, and 0% at 4 years. CONCLUSION Our model, once externally validated, could allow for better selection of patients for focal salvage HIFU.
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Affiliation(s)
- Max Peters
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht, The Netherlands.
| | - Abi Kanthabalan
- Division of Surgery and Interventional Science, University College London, London, UK; Department of Urology, UCLH NHS Foundation Trust, London, UK
| | - Taimur T Shah
- Division of Surgery and Interventional Science, University College London, London, UK; Department of Urology, UCLH NHS Foundation Trust, London, UK; Department of Urology, Whittington Hospital NHS Trust, London, UK
| | - Neil McCartan
- Division of Surgery and Interventional Science, University College London, London, UK; Department of Urology, UCLH NHS Foundation Trust, London, UK
| | - Caroline M Moore
- Division of Surgery and Interventional Science, University College London, London, UK; Department of Urology, UCLH NHS Foundation Trust, London, UK
| | - Manit Arya
- Department of Urology, UCLH NHS Foundation Trust, London, UK; Department of Urology, Princess Alexandra Hospital NHS Trust, Harlow, UK
| | | | - Marinus A Moerland
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Richard G Hindley
- Department of Urology, Basingstoke Hospital, Hampshire Hospitals NHS Foundation Trust, Basingstoke, UK
| | - Mark Emberton
- Division of Surgery and Interventional Science, University College London, London, UK; Department of Urology, Whittington Hospital NHS Trust, London, UK; NIHR UCLH/UCL Comprehensive Biomedical Research Center, London, UK
| | - Hashim U Ahmed
- Division of Surgery and Interventional Science, University College London, London, UK; Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, London, UK; Imperial Urology, Imperial Healthcare NHS Trust, London, UK
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Kollmeier MA, Zelefsky M, McBride S. Magnetic resonance imaging-based salvage brachytherapy: Moving toward a focal paradigm. Brachytherapy 2017; 16:770-777. [DOI: 10.1016/j.brachy.2017.02.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Revised: 02/22/2017] [Accepted: 02/27/2017] [Indexed: 11/25/2022]
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Second salvage high-dose-rate brachytherapy for radiorecurrent prostate cancer. J Contemp Brachytherapy 2017; 9:161-166. [PMID: 28533806 PMCID: PMC5437080 DOI: 10.5114/jcb.2017.67015] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Accepted: 02/25/2017] [Indexed: 12/14/2022] Open
Abstract
Purpose Salvage treatments for localized radiorecurrent prostate cancer can be performed safely when a focal and image guided approach is used. Due to the low toxicity, the opportunity exists to investigate a second salvage treatment when a second locally recurrent prostate cancer occurs. Here, we describe a second salvage treatment procedure of 4 patients. Material and methods Four patients with a pathologically proven second local recurrence were treated in an outpatient magnetic resonance imaging (MRI)-guided setting with a single fraction of 19 Gy focal high-dose-rate brachytherapy (HDR-BT). Delineation was performed using choline-PET-CT or a 68Ga-PSMA PET in combination with multiparametric 3 Tesla MRI in all four patients. Toxicity was measured using common toxicity criteria for adverse events (CTCAE) version 4.0. Results With a median follow-up of 12 months (range, 6-15), there were 2 patients with biochemical recurrence as defined by the Phoenix-definition. There were no patients with grade 3 or more toxicity. In all second salvage HDR-BT treatments, the constraints for rectum, bladder, and urethra were met. Median treatment volume (GTV) was 4.8 cc (range, 1.9-6.6 cc). A median of 8 catheters (range, 6-9) were used, and the median dose to the treatment volume (GTV) was a D95: 19.3 Gy (SD 15.5-19.4 Gy). Conclusions Second focal salvage MRI-guided HDR-BT for a select group of patients with a second locally recurrent prostate cancer is feasible. There was no grade 3 or more acute toxicity for these four patients.
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Tan Q, Qin Q, Yang W, Lian B, Mo Q, Wei C. Combination of 125I brachytherapy and chemotherapy for unresectable recurrent breast cancer: A retrospective control study. Medicine (Baltimore) 2016; 95:e5302. [PMID: 27858906 PMCID: PMC5591154 DOI: 10.1097/md.0000000000005302] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Recurrent breast cancer remains an incurable malignancy and cannot be removed by surgery in the majority of cases. This study aimed to explore the feasibility and efficacy of the combination of I brachytherapy and chemotherapy for the treatment of unresectable recurrent breast cancer. Patients with unresectable recurrent breast cancer treated between January 2011 and December 2014 with a combination of I brachytherapy and capecitabine or gemcitabine were evaluated and outcomes were compared with those of women treated with capecitabine or gemcitabine in conventional dose as a monotherapy. Of 61 patients evaluated, 28 received the combination treatment and 33 received capecitabine or gemcitabine monotherapy. The combination of I brachytherapy and chemotherapy resulted in a significant improvement in progression-free survival versus capecitabine or gemcitabine monotherapy (median, 17.8 vs 11.4 months; hazard ratio [HR], 0.44; 95% confidence interval [CI], 0.23-0.84; P = 0.013). The objective response rate (ORR) was significantly higher with the combination (82.1%) than with monotherapy (54.5%; P = 0.022), and the rate of pain relief was higher in the combination arm (100% vs 73.6%; P = 0.038). There was no significant improvement for overall survival (median, 30.1 vs 27.2 months; HR, 0.82; 95% CI, 0.47-1.44; P = 0.496). There were no serious complications detected during the follow-up period, any grade toxicities were comparable between treatment arms. In conclusion, the combination of I brachytherapy and second-line chemotherapy is superior to chemotherapy alone and is an effective and safe therapy for unresectable recurrent breast cancer. However, further investigation and much larger scale randomized controlled trials with long-term follow-up are needed.
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Affiliation(s)
| | | | - Weiping Yang
- Department of Ultrasound Diagnosis, The Affiliated Tumor Hospital of Guangxi Medical University, Nanning, China
| | | | | | - Changyuan Wei
- Department of Breast Surgery
- Correspondence: Changyuan Wei, Department of Breast Surgery, The Affiliated Tumor Hospital of Guangxi Medical University, 71 Hedi Road, Nanning 530021, China (e-mail: )
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Rutenberg MS, Meister M, Amin PP, Hussain A, Naslund MJ, Kwok Y. Salvage external beam radiotherapy for locally recurrent prostate cancer after definitive brachytherapy. Brachytherapy 2016; 15:722-729. [DOI: 10.1016/j.brachy.2016.08.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Revised: 07/29/2016] [Accepted: 08/05/2016] [Indexed: 11/30/2022]
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