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Saripalli AL, Venkatesulu BP, Nickols NG, Valle LF, Harkenrider MM, Kishan AU, Solanki AA. Systematic review and recommendations for re-irradiation for intraprostatic radiorecurrent prostate cancer after definitive radiation therapy. World J Urol 2024; 42:520. [PMID: 39264453 DOI: 10.1007/s00345-024-05205-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Accepted: 07/17/2024] [Indexed: 09/13/2024] Open
Abstract
PURPOSE Intraprostatic recurrence (IRR) of prostate cancer after radiation therapy is increasingly identified. Our objective was to review the literature to determine the optimal workup for identifying IRR, the management options, and practical considerations for the delivery of re-irradiation as salvage local therapy. METHODS We performed a systematic review of available publications and ongoing studies on the topics of IRR, with a focus on salvage re-irradiation. RESULTS Work up of biochemically recurrent prostate cancer includes PSMA PET/CT and multiparametric MRI, followed by biopsy to confirm IRR. Management options include continued surveillance, palliative hormonal therapy, and salvage local therapy. Salvage local therapy can be delivered using re-irradiation with low dose rate brachytherapy, high dose rate (HDR) brachytherapy, and stereotactic body radiotherapy (SBRT), as well as non-radiation modalities, such as cryotherapy, high-intensity focused ultrasound, irreversible electroporation and radical prostatectomy. Data demonstrate that HDR brachytherapy and SBRT have similar efficacy compared to the other salvage local therapy modalities, while having more favorable side effect profiles. Recommendations for radiation therapy planning and delivery using HDR and SBRT based on the available literature are discussed. CONCLUSION Salvage re-irradiation is safe and effective and should be considered in patients with IRR.
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Affiliation(s)
- Anjali L Saripalli
- Department of Radiation Oncology, Stritch School of Medicine, Cardinal Bernardin Cancer Center, Loyola University Chicago, Maywood, IL, USA
| | - Bhanu Prasad Venkatesulu
- Department of Radiation Oncology, Stritch School of Medicine, Cardinal Bernardin Cancer Center, Loyola University Chicago, Maywood, IL, USA
| | - Nicholas G Nickols
- Department of Radiation Oncology, University of California Los Angeles, Los Angeles, CA, USA
- Department of Radiation Oncology, Greater Los Angeles Veterans Affairs Healthcare System, Los Angeles, CA, USA
| | - Luca F Valle
- Department of Radiation Oncology, University of California Los Angeles, Los Angeles, CA, USA
- Department of Radiation Oncology, Greater Los Angeles Veterans Affairs Healthcare System, Los Angeles, CA, USA
| | - Matthew M Harkenrider
- Department of Radiation Oncology, Stritch School of Medicine, Cardinal Bernardin Cancer Center, Loyola University Chicago, Maywood, IL, USA
| | - Amar U Kishan
- Department of Radiation Oncology, University of California Los Angeles, Los Angeles, CA, USA
| | - Abhishek A Solanki
- Department of Radiation Oncology, Stritch School of Medicine, Cardinal Bernardin Cancer Center, Loyola University Chicago, Maywood, IL, USA.
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Shen B, Liu J, Wu D, Guo J. Evaluation of the safety and efficacy of high-dose rate brachytherapy for radiorecurrent prostate cancer: a systematic review and meta-analysis. Strahlenther Onkol 2024; 200:655-670. [PMID: 38386054 DOI: 10.1007/s00066-024-02205-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 01/14/2024] [Indexed: 02/23/2024]
Abstract
BACKGROUND High-dose-rate brachytherapy (HDR-BT) plays an important role in the treatment of locally recurrent prostate cancer after definitive treatment. The objective of this study is to summarize the efficacy and toxicity of HDR-BT in these patients. METHODS We performed a systematic review of PubMed and EMBASE from inception to July 2023. The primary endpoint was relapse-free survival (RFS) in different subgroups, and the secondary endpoint was gastrointestinal (GI) and genitourinary (GU) toxicity. A semi-automated tool (WebPlotDigitizer) and a new Shiny application combined with R software (R: a language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria; https://www.R-project.org/ ) helped to reconstruct survival curves. RESULTS Twenty-six studies met the inclusion criteria for quantitative analysis, including 1447 patients. A total of 761 patients from 13 studies were included in survival reconstruction, and the median RFS time was 61.2 months (57.6-72.0 months). The estimated 2‑, 3‑, and 5‑year rates were 75.9% (95% confidence interval [CI] 72.8 ~ 79.2%), 66.7% (95% CI 63.0 ~ 70.5%), and 52.3% (95% CI 47.5 ~ 57.4%), respectively. Whole-gland irradiation with multiple fractions (≥ 2 F) resulted in better RFS compared with focal gland irradiation with fewer fractions (1 F mostly; hazard ratio [HR]: 0.60, 95% CI 0.47-0.77, p < 0.0001). According to the different median time from primary treatment to salvage therapy (TRS) and median age at recurrence, short median TRS (56-67.2 months vs. 70-120 months; HR 0.52, 95% CI 0.68-0.40; p < 0.0001) and younger median age (60-70 years vs. 71-75 years; HR 0.58, 95% CI 0.46-0.74; p < 0.0001) were positive factors for RFS. The cumulative incidences estimated for grade ≥ 3 acute and late GU toxicities were 1% (95% CI 0 ~ 1%) and 5% (95% CI 4 ~ 7%), respectively. Three patients (3/992) experienced grade ≥ 3 late GI toxicity, and no cases of grade ≥ 3 acute GI toxicity were reported. CONCLUSION HDR-BT has a high safety profile and good RFS benefit for salvage treatment of radiorecurrent prostate cancer. In terms of RFS, whole-gland irradiation with multiple fractions seems to be better than focal gland irradiation with fewer fractions, while short TRS and younger age are good prognostic factors. In view of the low level of evidence in the included studies and the large heterogeneity of each study, these conclusions still need to be confirmed by randomized controlled trials.
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Affiliation(s)
- Bin Shen
- Urology Department, Shaoxing People's Hospital, 312000, Shaoxing, Zhejiang, China
| | - Jianjiang Liu
- Department of Radiotherapy, Shaoxing People's Hospital, 312000, Shaoxing, Zhejiang, China
| | - Dongping Wu
- Department of Radiotherapy, Shaoxing People's Hospital, 312000, Shaoxing, Zhejiang, China.
| | - Jiayi Guo
- School of Medicine, Shaoxing University, No.568 Zhongxing North Road, Yuecheng District, 312000, Shaoxing, Zhejiang, China.
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Fang B, McGeachy P, Husain S, Meyer T, Thind K, Martell K. Acute toxicity outcomes from salvage high-dose-rate brachytherapy for locally recurrent prostate cancer after prior radiotherapy. J Contemp Brachytherapy 2024; 16:111-120. [PMID: 38808210 PMCID: PMC11129646 DOI: 10.5114/jcb.2024.139278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Accepted: 04/09/2024] [Indexed: 05/30/2024] Open
Abstract
Purpose Isolated intra-prostatic recurrence of prostate adenocarcinoma after definitive radiotherapy presents a challenging clinical scenario. Salvage options require specialized expertise and pose risks of harm. This study aimed to present the acute toxicity results from using salvage high-dose-rate brachytherapy (sHDR-BT) as treatment in locally recurrent prostate cancer cases. Material and methods Seventeen consecutive patients treated with sHDR-BT between 2019 and 2022 were evaluated retrospectively. Eligible patients had to have received curative intent prostate radiotherapy previously, and showed evidence of new biochemical failure. Evaluation with American Urological Association (AUA) and Common Terminology Criteria for Adverse Events (CTCAE) symptom assessments were performed for each case. Results The median (inter-quartile range) age prior to salvage treatment was 68 (66-74) years. The median post-sHDR-BT follow-up time was 20 (13-24) months. At baseline prior to sHDR-BT, 8 (47%) patients had significant lower urinary tract symptoms. The median AUA score prior to sHDR-BT was 7 (3-18). Three (18%) patients reported irregular bowel function and 2 (12%) reported hematochezia prior to sHDR-BT. One-month post-treatment, the median AUA score was 13 (8-21, p = 0.21). Using CTCAE scoring, there were no cases of grade 2+ bowel or rectal toxicity, and no cases of grade 3+ urinary toxicity. Reported grade 2 urinary toxicities included 10 (59%) cases of bladder spasms, 2 (12%) cases of incontinence, 1 (6%) urinary obstruction, and 4 (24%) reports of urinary urgency. All these adverse events were temporary. Conclusions This study adds to the existing literature by demonstrating that the acute toxicity profile of sHDR-BT is acceptable even without intra-operative magnetic resonance (MR) guidance or image registration. Further study is ongoing to determine long-term efficacy and toxicity of treatment.
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Affiliation(s)
- Breanna Fang
- Department of Oncology, University of Calgary, Calgary, Alberta, Canada
| | - Philip McGeachy
- Department of Oncology, University of Calgary, Calgary, Alberta, Canada
| | - Siraj Husain
- Department of Oncology, University of Calgary, Calgary, Alberta, Canada
| | - Tyler Meyer
- Department of Oncology, University of Calgary, Calgary, Alberta, Canada
| | - Kundan Thind
- Henry Ford Health System, Detroit, Michigan, United States
| | - Kevin Martell
- Department of Oncology, University of Calgary, Calgary, Alberta, Canada
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Lee CT, Koleoso O, Deng M, Veltchev I, Lin T, Hallman MA, Horwitz EM, Wong JK. A dosimetric analysis of rectal hydrogel spacer use in patients with recurrent prostate cancer undergoing salvage high-dose-rate brachytherapy. Brachytherapy 2023; 22:586-592. [PMID: 37393186 PMCID: PMC10527788 DOI: 10.1016/j.brachy.2023.06.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Revised: 05/18/2023] [Accepted: 06/01/2023] [Indexed: 07/03/2023]
Abstract
PURPOSE We hypothesize rectal hydrogel spacer (RHS) improves rectal dosimetry in patients undergoing salvage high-dose-rate brachytherapy (HDR-BT) for intact, recurrent prostate cancer (PC). METHODS AND MATERIALS A prospectively collected institutional database was queried for recurrent PC patients treated with salvage HDR-BT from September 2015 to November 2021. Patients were offered RHS beginning June 2019. Dosimetric variables were compared between RHS and no-RHS groups for the average of two fractions using Wilcoxon rank-sum tests. Primary outcomes were rectal volume receiving 75% of prescription dose (V75%) and prostate volume receiving 100% of prescription dose (V100%). Generalized estimating equation (GEE) model was used to evaluate the association between other planning variables and rectal V75%. RESULTS Forty-one PC patients received salvage HDR-BT, of whom 20 had RHS. All patients received 2400cGy in 2 fractions. Median RHS volume was 6.2cm3 (Standard deviation [SD]: ± 3.5cm3). Median follow-up was 4 months and 17 months in the RHS and no-RHS groups, respectively. Median rectal V75% with and without RHS were 0.0cm3 (IQR: 0.0-0.0cm3) and 0.06cm3 (IQR: 0.0-0.14cm3), respectively (p<0.001). Median prostate V100% with and without RHS were 98.55% (IQR: 97.86-99.22%) and 97.78% (IQR: 97.50-98.18%), respectively (p = 0.007). RHS, rectum, and prostate volumes did not significantly affect rectal V75% per GEE modeling. There was 10% G1-2 and 5% G3 rectal toxicity in RHS group. There was 9.5% G1-2 and no G3+ rectal toxicities in the no-RHS group. CONCLUSIONS Absolute improvement in rectal V75% and prostate V100% was significant with RHS in PC patients undergoing salvage HDR-BT, but clinical benefit is marginal.
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Affiliation(s)
- Charles T Lee
- Department of Radiation Oncology, Fox Chase Cancer Center, Philadelphia, PA.
| | - Olufela Koleoso
- Doctor of Osteopathic Medicine Program, Philadelphia College of Osteopathic Medicine, Philadelphia, PA
| | - Mengying Deng
- Department of Biostatistics and Bioinformatics, Fox Chase Cancer Center, Philadelphia, PA
| | - Iavor Veltchev
- Department of Radiation Oncology, Fox Chase Cancer Center, Philadelphia, PA
| | - Teh Lin
- Department of Radiation Oncology, Fox Chase Cancer Center, Philadelphia, PA
| | - Mark A Hallman
- Department of Radiation Oncology, Fox Chase Cancer Center, Philadelphia, PA
| | - Eric M Horwitz
- Department of Radiation Oncology, Fox Chase Cancer Center, Philadelphia, PA
| | - J Karen Wong
- Department of Radiation Oncology, Fox Chase Cancer Center, Philadelphia, PA
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Xie X, Zhang P, Ran C, Liu L, Hu J, Lei P, Liang P. Global research status and hotspots of radiotherapy for prostate cancer: a bibliometric analysis based on Web of Science from 2010-2022. Front Oncol 2023; 13:1135052. [PMID: 37637069 PMCID: PMC10450940 DOI: 10.3389/fonc.2023.1135052] [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: 12/31/2022] [Accepted: 07/26/2023] [Indexed: 08/29/2023] Open
Abstract
Background Radiotherapy (RT) is one of the important treatments for various cancer types and its application to prostate cancer (PCa) has also gradually gained increasing attention. However, there is a lack of comprehensive and objective studies on the overall status of research on RT for PCa. This article aims to summarize and quantify the dynamic trends of RT in PCa by using bibliometrics. Methods Studies on RT for PCa were screened from the Web of Science Core Collection (WoSCC) database between 1 January 2010 and 21 November 2022 to collate and quantify information characteristics by analyzing parameters including annual publications, countries/regions, institutions and authors with the aid of the bibliometric software CiteSpace and VOSviewer. In addition, research trends and hotspots were explored by analyzing keywords and co-cited references. Results A total of 21338 documents were retrieved. The United States of America (USA) ranked first and maintained the leading position among all countries in the number of publications (8489) and total citations (266342). The University of Toronto was the most active institution in total publications (n=587). Paul L Nguyen enjoyed the most publications (n=179), and Michael J Zelefsky enjoyed the most co-citations (n=3376). INTERNATIONAL JOURNAL OF RADIATION ONCOLOGY BIOLOGY PHYSICS published the most papers (n=1026), and was the most frequently co-cited journal (n=78550). The largest and closest cluster in the reference cluster analysis was "oligorecurrent prostate cancer". The timeline view of keywords reveals that cluster "biochemical recurrence(BCR)" is ongoing. Moreover, keywords burstness analysis showed that "radiation dosimetry", "dose rate brachytherapy(BT)", "salvage radiotherapy", "stereotactic body radiotherapy(SBRT)", "guideline", and "multicenter" were the terms with great bursts in the past a few years. Conclusion The application of RT targeting oligometastatic prostate cancer(OMPC) has garnered considerable attention among researchers. SBRT and BT have become hot topics in the field. Additionally, the BCR of PCa has long been a critical issue requiring extensive research and resolution, and salvage radiotherapy has currently emerged as a closely related research focus. Related large-scale multicenter studies have been conducted over the past few years, providing valuable insights. More high-quality research is expected to be employed to guide clinical decision-making.
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Affiliation(s)
- Xiaodu Xie
- Department of Urology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, ;China
| | - Peng Zhang
- Department of Urology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, ;China
| | - Chongjun Ran
- Department of Urology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, ;China
| | - Lumiao Liu
- Department of Anesthesiology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jian Hu
- Department of Urology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, ;China
| | - Pan Lei
- Department of Urology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, ;China
| | - Peihe Liang
- Department of Urology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, ;China
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