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Frontiers in Pharmacology 2023Whether neoadjuvant therapy confers a survival benefit in advanced prostate cancer (PCa) remains uncertain. The primary endpoints of previous retrospective and phase II...
Whether neoadjuvant therapy confers a survival benefit in advanced prostate cancer (PCa) remains uncertain. The primary endpoints of previous retrospective and phase II clinical studies that used neoadjuvant therapy, including androgen deprivation therapy combined with new-generation androgen receptor signaling inhibitors or chemotherapy, were pathological downstaging, progression-free survival, prostate-specific antigen relief, and local symptom improvement. To the best of our knowledge, no studies have explored the efficacy and safety of neoadjuvant therapy in improving the surgical resection rate in cases of unresectable primary tumors of PCa. We first designed this retrospective study to evaluate the potential value of apalutamide as neoadjuvant therapy in improving the resectability rate of radical prostatectomy (RP). We initially reported 7 patients with unresectable primary lesions who underwent neoadjuvant apalutamide treatment for a median of 4 months, and all of them successfully underwent RP treatment. Our study supported apalutamide as neoadjuvant therapy, which helped improve RP's success rate and did not significantly increase perioperative complications, and the neoadjuvant therapy was controllable. Our findings' clinical value and benefit for survival still need further clinical research to confirm.
PubMed: 37927597
DOI: 10.3389/fphar.2023.1284899 -
Proceedings of the National Academy of... Dec 2023While radical prostatectomy remains the mainstay of prostate cancer (PCa) treatment, 20 to 40% of patients develop postsurgical biochemical recurrence (BCR). A...
While radical prostatectomy remains the mainstay of prostate cancer (PCa) treatment, 20 to 40% of patients develop postsurgical biochemical recurrence (BCR). A particularly challenging clinical cohort includes patients with intermediate-risk disease whose risk stratification would benefit from advanced approaches that complement standard-of-care diagnostic tools. Here, we show that imaging tumor lactate using hyperpolarized C MRI and spatial metabolomics identifies BCR-positive patients in two prospective intermediate-risk surgical cohorts. Supported by spatially resolved tissue analysis of established glycolytic biomarkers, this study provides the rationale for multicenter trials of tumor metabolic imaging as an auxiliary tool to support PCa treatment decision-making.
Topics: Male; Humans; Prostate-Specific Antigen; Lactic Acid; Prospective Studies; Prostatic Neoplasms; Prostate; Prostatectomy; Neoplasm Recurrence, Local; Retrospective Studies
PubMed: 38011568
DOI: 10.1073/pnas.2312261120 -
World Journal of Oncology Dec 2023The aim of the study was to investigate the predictive value of the nutritional risk index (NRI) for extracapsular extension (ECE) and seminal vesicle invasion (SVI) in...
Development and Validation of Nomograms Based on Nutritional Risk Index for Predicting Extracapsular Extension and Seminal Vesicle Invasion in Patients Undergoing Radical Prostatectomy.
BACKGROUND
The aim of the study was to investigate the predictive value of the nutritional risk index (NRI) for extracapsular extension (ECE) and seminal vesicle invasion (SVI) in prostate cancer (PCa) patients undergoing radical prostatectomy (RP), and further develop and validate predictive nomograms for ECE and SVI based on the NRI.
METHODS
We retrospectively analyzed 734 PCa patients who underwent RP between 2010 and 2020 in the Department of Urology at Peking University Third Hospital. The enrolled patients were randomly divided into a primary cohort (n = 489) and a validation cohort (n = 245) in a 2:1 manner. The baseline NRI of patients was calculated using serum albumin level and body mass index, and a malnutrition status was defined as NRI ≤ 98. Univariate and multivariate logistic regression analyses were conducted to identify predictors for ECE and SVI. Nomograms for predicting ECE and SVI were established based on the results of the multivariate logistic regression analysis. The performance of the nomograms was estimated using Harrell's concordance index (C-index), the area under curve (AUC) of receiver operating characteristic (ROC) curves and the calibration curves.
RESULTS
In the primary cohort, 70 (14.3%) patients with NRI ≤ 98 were classified as malnutrition, while the remaining 419 (85.7%) patients with NRI > 98 were considered to have normal nutrition. The nomograms for predicting ECE and SVI shared common factors including NRI, percentage of positive biopsy cores (PPC) and biopsy Gleason score, while prostate-specific antigen (PSA) levels and PSA density (PSAD) were only incorporated in ECE nomogram. The C-indexes of the nomograms for predicting ECE and SVI were 0.785 (95% confidence interval (CI): 0.745 - 0.826) and 0.852 (95% CI: 0.806 - 0.898), respectively. The calibration curves demonstrated excellent agreement between the predictions by the nomograms and the actual observations. The results remained reproducible when the nomograms were applied to the validation cohort.
CONCLUSIONS
The NRI is significantly associated with ECE and SVI in PCa patients. The nomogram established based on the NRI in our study can provide individualized risk estimation for ECE and SVI in PCa patients, and may be valuable for clinicians in making well-informed decisions regarding treatment strategies and patient management.
PubMed: 38022403
DOI: 10.14740/wjon1718 -
Journal of Biomedical Optics Aug 2023Positive margin status due to incomplete removal of tumor tissue during radical prostatectomy for high-risk localized prostate cancer requires reoperation or adjuvant...
SIGNIFICANCE
Positive margin status due to incomplete removal of tumor tissue during radical prostatectomy for high-risk localized prostate cancer requires reoperation or adjuvant therapy, which increases morbidity and mortality. Adverse effects of prostate cancer treatments commonly include erectile dysfunction, urinary incontinence, and bowel dysfunction, making successful initial curative prostatectomy imperative.
AIM
Current intraoperative tumor margin assessment is largely limited to frozen section analysis, which is a lengthy, labor-intensive process that is obtrusive to the clinical workflow within the operating room (OR). Therefore, a rapid method for prostate cancer margin assessment in the OR could improve outcomes for patients.
APPROACH
Dual probe difference specimen imaging (DDSI), which uses paired antibody-based probes that are labeled with spectrally distinct fluorophores, was shown herein for prostate cancer margin assessment. The paired antibody-based probes consisted of a targeted probe to prostate-specific membrane antigen (PSMA) and an untargeted probe, which were used as a cocktail to stain resected murine tissue specimens including prostate tumor, adipose, muscle, and normal prostate. Ratiometric images (i.e., DDSI) of the difference between targeted and untargeted probe uptake were calculated and evaluated for accuracy using receiver operator characteristic curve analysis with area under the curve values used to evaluate the utility of the DDSI method to detect PSMA positive prostate cancer.
RESULTS
Targeted and untargeted probe uptake was similar between the high and low PSMA expressing tumor due to nonspecific probe uptake after topical administration. The ratiometric DDSI approach showed substantial contrast difference between the PSMA positive tumors and their respective normal tissues (prostate, adipose, muscle). Furthermore, DDSI showed substantial contrast difference between the high PSMA expressing tumors and the minimally PSMA expressing tumors due to the ratiometric correction for the nonspecific uptake patterns in resected tissues.
CONCLUSIONS
Previous work has shown that ratiometic imaging has strong predictive value for breast cancer margin status using topical administration. Translation of the ratiometric DDSI methodology herein from breast to prostate cancers demonstrates it as a robust, ratiometric technique that provides a molecularly specific imaging modality for intraoperative margin detection. Using the validated DDSI protocol on resected prostate cancers permitted rapid and accurate assessment of PSMA status as a surrogate for prostate cancer margin status. Future studies will further evaluate the utility of this technology to quantitatively characterize prostate margin status using PSMA as a biomarker.
Topics: Humans; Male; Diagnostic Imaging; Prostate; Prostatectomy; Prostatic Neoplasms
PubMed: 37082104
DOI: 10.1117/1.JBO.28.8.082806 -
Asian Journal of Surgery Dec 2023To evaluate the perioperative and functional outcomes of holmium laser enucleation of the prostate (HoLEP) among patients with and without prior transurethral prostate... (Review)
Review
To evaluate the perioperative and functional outcomes of holmium laser enucleation of the prostate (HoLEP) among patients with and without prior transurethral prostate surgery. we performed a systematic search of the Cochrane Library, PubMed, Embase, Web of Science and Scopus databases for articles evaluating the effectiveness of salvage HoLEP (S-HoLEP) versus primary HoLEP (P-HoLEP) until January 2023. Nine studies involving 6044 patients were included for both quantitative and qualitative analysis. Compared with P-HoLEP, S-HoLEP used more energy (weighted mean difference = 14.27 KJ; 95% CI = 4.75-23.79; P = 0.003) and had an increased incidence of postoperative clot retention (odds ratio = 2.12; 95% CI = 1.25-3.59; P = 0.005) and urethral stricture (OR = 1.99; 95% CI = 1.04-3.8; P = 0.04). However, the International Prostate Symptom Score at the sixth month of follow-up was significantly lower for S-HoLEP than for P-HoLEP (WMD = -0.80; 95% CI = -1.38 to -0.22; P = 0.007). There was no significant difference between S-HoLEP and P-HoLEP in terms of operative time, enucleation time, enucleation efficiency, morcellation time, resected weight, catheterisation time, hospital stay duration, quality of life, maximum urinary flow rate, postvoid residual and intraoperative and postoperative overall complications. compared with P-HoLEP, S-HoLEP is still a feasible and effective method for treating residual benign prostatic hyperplasia, with only a slight increase in the probability of energy utilisation, clot retention and urethral stricture. Despite these minor discrepancies, the overall beneficial effects of the two modalities on symptom resolution is noteworthy.
Topics: Male; Humans; Prostate; Urethral Stricture; Lasers, Solid-State; Quality of Life; Transurethral Resection of Prostate; Prostatic Hyperplasia; Holmium; Treatment Outcome
PubMed: 37268461
DOI: 10.1016/j.asjsur.2023.05.003 -
Minerva Urology and Nephrology Dec 2023This study (MT02) reports >48-month (50-79 months) results of a prospective, single-arm, multicenter study (NCT02145208) of temporary implantable nitinol device (iTind)...
BACKGROUND
This study (MT02) reports >48-month (50-79 months) results of a prospective, single-arm, multicenter study (NCT02145208) of temporary implantable nitinol device (iTind) in men with benign prostatic hyperplasia (BPH)-related lower urinary tract symptoms (LUTS).
METHODS
Men with symptomatic BPH (International Prostate Symptom Score [IPSS] ≥10, Maximum flow rate [Q
max ] <12 mL/s, and prostate volume <75 mL) from 9 centers were enrolled from December 2014 to December 2016. Total 50/81 (62%) patients at 3/9 sites (Italy, Switzerland, and Belgium), pursued the study beyond 36 months following iTind device, per study protocol. Due to COVID-19, follow-up was amended. Each patient was assessed once during 50-79 months postoperatively for IPSS and IPSS-quality of life (IPSS-QoL), change in medication, need for surgical re-treatment and adverse events telephonically.RESULTS
Post 36 month-follow-up, 5 patients were lost to follow-up and 2 patients died unrelated to iTind device placement. Two patients (36-48 months follow-up) required surgical re-treatments (1 transurethral resection of prostate, 1 Thulium laser enucleation of prostate). >48 months results were available for 41 patients wherein iTind device treatment showed significant improvement in symptoms (IPSS: -45.3%, P<0.0001 and IPSS-QoL: -45.1%, P<0.0001) from baseline to 79 months post-procedure; mean±SD of 11.26±7.67 and 2.10±1.41 points, respectively. No complications were recorded between 36 up to 79 months; no patient required additional medication.
CONCLUSIONS
iTind device provided significant and durable symptom reduction and improved IPSS-QoL for >48 months post treatment. No late postoperative complications were reported beyond 36 months of follow-up. Surgical re-treatment rate for >36 months was 4%.
Topics: Male; Humans; Prostatic Hyperplasia; Quality of Life; Transurethral Resection of Prostate; Treatment Outcome; Prospective Studies; Lower Urinary Tract Symptoms
PubMed: 37350585
DOI: 10.23736/S2724-6051.23.05322-3 -
Frontiers in Endocrinology 2023Positive surgical margins (PSM) is not only an independent risk factor for recurrence, metastasis, and prognosis, but also an important indicator of adjuvant therapy for...
BACKGROUND
Positive surgical margins (PSM) is not only an independent risk factor for recurrence, metastasis, and prognosis, but also an important indicator of adjuvant therapy for prostate cancer (PCa) patients treated with radical prostatectomy (RP). At present, there are few reports analyzing risk factors of PSM in laparoscopic RP (LRP), especially for those PCa cases who accepted neoadjuvant hormonal therapy (NHT). Hence, the aim of the current study was to explore risk factors for PSM after LRP in PCa patients with and without NHT.
METHODS
The clinicopathological data of patients who underwent LRP from January 2012 to July 2020 was retrospectively analyzed. Risk factors for PSM after LRP in NHT and non-NHT groups were respectively explored.
RESULTS
The overall PSM rate was 33.3% (90/270), PSM rate was 39.3% (64/163) in patients without NHT and 24.3% (26/107) in those with NHT. The apex was the most common location of PSM in non-NHT group (68.8%, 44/64), while the fundus was the most common location of PSM in NHT group (57.7%, 15/26). Multiple logistic regression revealed that body mass index (BMI), PSA, ISUP grade after LRP, pathological stage T (pT) and pathological lymph node status (pN) were independent factors affecting the PSM for patients without NHT (OR=1.160, 95%CI:1.034-1.301, p=0.011; OR=3.385, 95%CI:1.386-8.268, p=0.007; OR=3.541, 95%CI:1.008-12.444, p=0.049; OR=4.577, 95%CI:2.163-9.686, p<0.001; OR=3.572, 95%CI:1.124-11.347, p=0.031), while pT, pN, and lymphovascular invasion (LVI) were independent risk factors affecting PSM for patients with NHT (OR=18.434, 95%CI:4.976-68.297, p<0.001; OR=7.181, 95%CI:2.089-24.689, p=0.002; OR=3.545, 95%CI:1.109-11.327, p=0.033).
CONCLUSIONS
The apex was the most common location in NHT group, and BMI, PSA, ISUP after LRP, pT and pN were independent risk factors affecting PSM for NHT patients; while the fundus was the most common location in non-NHT group, and pT, pN, and LVI were independent risk factors affecting PSM for non-NHT patients.
Topics: Male; Humans; Prostate-Specific Antigen; Neoadjuvant Therapy; Margins of Excision; Retrospective Studies; Antineoplastic Agents, Hormonal; Prostatic Neoplasms; Prostatectomy; Risk Factors; Laparoscopy
PubMed: 37941905
DOI: 10.3389/fendo.2023.1270594 -
Veterinary Sciences Apr 2024Prostate carcinoma is one of the most common cancers worldwide in men, with over 3 million men currently living with prostate carcinoma. In men, routine screening and... (Review)
Review
Prostate carcinoma is one of the most common cancers worldwide in men, with over 3 million men currently living with prostate carcinoma. In men, routine screening and successful treatment schemes, including radiation, prostatectomy, or hormone therapy, have allowed for high survivability. Dogs are recognized as one of the only mammals to spontaneously develop prostate neoplasia and are an important translational model. Within veterinary medicine, treatment options have historically been limited in efficacy or paired with high morbidity. Recently, less invasive treatment modalities have been investigated in dogs and people and demonstrated promise. Below, current treatment options available in dogs and people are reviewed, as well as a discussion of current and future trends within interventional treatment for canine PC.
PubMed: 38668436
DOI: 10.3390/vetsci11040169 -
Clinical Genitourinary Cancer Apr 2024We aimed to assess the association between comorbidities and prostate cancer management.
INTRODUCTION
We aimed to assess the association between comorbidities and prostate cancer management.
PATIENTS AND METHODS
We studied 12,603 South Australian men diagnosed with prostate cancer between 2003 and 2019. Comorbidity was measured one year prior to prostate cancer diagnosis using a medication-based comorbidity index (Rx-Risk). Binomial logistic regression analyses were used to assess the association between comorbidities and primary treatment selection (active surveillance, radical prostatectomy (RP), external beam radiotherapy (EBRT) with or without androgen deprivation therapy (ADT), brachytherapy, ADT alone, and watchful waiting (WW)). Certain common comorbidities within Rx-Risk (cardiac disorders, diabetes, chronic airway diseases, depression and anxiety, thrombosis, and chronic pain) were also assessed. All models were adjusted for sociodemographic and tumor characteristics.
RESULTS
Likelihood of receiving RP was lower among men with Rx-Risk score ≥3 (odds ratio (OR) 0.62, 95%CI:0.56-0.69) and Rx-Risk 2 (OR 0.80, 95%CI:0.70-0.92) compared with no comorbidity (Rx-Risk ≤0). Men with high comorbidity (Rx-Risk ≥3) were more likely to have received ADT alone (OR 1.76, 95%CI:1.40-2.21), EBRT (OR 1.30, 95%CI:1.17-1.45) or WW (OR 1.49, 95%CI:1.19-1.88) compared with Rx-Risk ≤0. Pre-existing cardiac and respiratory disorders, thrombosis, diabetes, depression and anxiety, and chronic pain were associated with lower likelihood of selecting RP and higher likelihood of EBRT (except chronic airway disease) or WW (except diabetes and depression and anxiety). Cardiac disorders and thrombosis were associated with higher likelihood of selecting ADT alone. Furthermore, age had greater effect on treatment choice than the level of comorbidity.
CONCLUSION
High comorbidity burden was associated with primary treatment choice, with significantly less RP and more EBRT, WW and ADT alone among men with higher levels of comorbidity. Each of the individual comorbid conditions also influenced treatment selection.
Topics: Male; Humans; Prostatic Neoplasms; Androgen Antagonists; Chronic Pain; Australia; Brachytherapy; Comorbidity; Prostatectomy; Diabetes Mellitus; Heart Diseases; Thrombosis
PubMed: 38369388
DOI: 10.1016/j.clgc.2024.01.018 -
International Journal of Radiation... Mar 2024After radical prostatectomy (RP), adjuvant or salvage radiation treatment in node-positive prostate cancer is offered to prevent systemic disease. Prospective long-term...
PURPOSE
After radical prostatectomy (RP), adjuvant or salvage radiation treatment in node-positive prostate cancer is offered to prevent systemic disease. Prospective long-term survival and toxicity data on patients with radiation for nodal disease are still scarce. This study evaluates safety and feasibility of salvage radiation therapy to the pelvic lymph nodes in node-positive prostate cancer after RP.
METHODS AND MATERIALS
Between 2009 and 2018, 78 patients with lymph node recurrence after RP (PLATIN-4 trial) or after RP and prostate bed radiation therapy (PLATIN-5 trial) were treated with salvage pelvic lymph node radiation therapy with boost to the involved nodes as field abutment (PLATIN-5) and boost to the prostate bed (PLATIN-4). Androgen deprivation therapy was started 2 months before radiation and recommended for 24 months. The primary endpoint was safety and feasibility of the intensity modulated radiation therapy-image guided radiation therapy technique based on the rate of treatment discontinuations and incidence of Common Terminology Criteria for Adverse Events grade 3+ toxicity. Secondary endpoints were progression-free survival and overall survival.
RESULTS
No treatment discontinuations were reported in either trial. Median overall survival was not reached in PLATIN-4 and was 117 months in PLATIN-5. Median progression-free survival was 66 months in PLATIN-4 and 39 months in PLATIN-5. Late grade 3+ genitourinary and gastrointestinal toxicities were observed in 4% of patients at 24 months of follow-up.
CONCLUSIONS
Salvage radiation therapy to the prostate bed and pelvic lymphatic drainage combined with long-term androgen deprivation therapy is a curative treatment option for patients with node-positive prostate cancer after RP, with excellent in-field disease control. Pelvic lymph node radiation therapy as field abutment after prostate bed radiation therapy is feasible with long-term survival and no high-grade toxicity.
Topics: Male; Humans; Prostatic Neoplasms; Androgen Antagonists; Prospective Studies; Androgens; Prostatectomy; Prostate-Specific Antigen
PubMed: 37863242
DOI: 10.1016/j.ijrobp.2023.10.009