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van Hattum JW, de Ruiter BM, Oddens JR, de Reijke TM, Wilmink JW, Molenaar RJ. The Effect of Metformin on Bladder Cancer Incidence and Outcomes: A Systematic Review and Meta-Analysis. Bladder Cancer 2022; 8:211-228. [PMID: 38993366 PMCID: PMC11181685 DOI: 10.3233/blc-211653] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 02/17/2022] [Indexed: 12/20/2022]
Abstract
BACKGROUND Effective oral treatment options for urothelial bladder cancer (BC) are lacking. Metformin, the most frequently used oral drug in type II diabetes mellitus, has putative anticancer properties and could, therefore, influence BC incidence and treatment outcomes. We systematically reviewed the current literature regarding the effect of metformin on BC incidence and oncological outcomes in non-muscle-invasive bladder cancer (NMIBC) and muscle-invasive bladder cancer (MIBC). METHODS This review was conducted according to the PRISMA guidelines. Literature was gathered through a systematic search in PubMed/Medline, EMBASE and the Cochrane library. Risk of bias was determined using the Cochrane risk-of-bias tool for randomized trials and the Newcastle-Ottawa Scale for non-randomized trials. Hazard ratios (HRs) were extracted and pooled in a random-effects meta-analysis. RESULTS We reviewed 13 studies, including 3,315,320 patients, considering the risk of developing BC after metformin exposure and 9 studies, including 4,006 patients, on oncological outcomes of patients with BC. Metformin did not affect BC incidence (HR 0.97, 95% CI 0.87 -1.09) or oncological outcomes for NMIBC but did show a reduced risk of recurrence (HR 0.52, 95% CI 0.32 -0.84), cancer-specific mortality (HR 0.58, 95% CI 0.43 -0.78) and overall mortality (HR 0.66, 95% CI 0.47 -0.92) in MIBC. CONCLUSIONS The role of metformin in the prevention and treatment of BC in patients remains unclear. Although a beneficial effect of metformin on treatment outcomes of certain stages of BC may exist, a definitive conclusion cannot be drawn. Prospective clinical trials are needed to assess the efficacy of metformin for BC treatment.
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Affiliation(s)
- Jons W. van Hattum
- Department of Urology, Cancer Center Amsterdam, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, the Netherlands
| | - Ben Max de Ruiter
- Department of Urology, Cancer Center Amsterdam, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, the Netherlands
| | - Jorg R. Oddens
- Department of Urology, Cancer Center Amsterdam, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, the Netherlands
| | - Theo M. de Reijke
- Department of Urology, Cancer Center Amsterdam, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, the Netherlands
| | - Johanna W. Wilmink
- Department of Medical Oncology, Cancer Center Amsterdam, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, the Netherlands
| | - Remco J. Molenaar
- Department of Medical Oncology, Cancer Center Amsterdam, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, the Netherlands
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Liu CQ, Sun JX, Xu JZ, Qian XY, Hong SY, Xu MY, An Y, Xia QD, Hu J, Wang SG. Metformin Use on Incidence and Oncologic Outcomes of Bladder Cancer Patients With T2DM: An Updated Meta-Analysis. Front Pharmacol 2022; 13:865988. [PMID: 35462910 PMCID: PMC9021395 DOI: 10.3389/fphar.2022.865988] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Accepted: 03/17/2022] [Indexed: 11/13/2022] Open
Abstract
Background: The incidence rate and mortality of bladder cancer are increasing year by year. Interestingly, the commonly used metabolic regulatory drug metformin has been reported to have anti-tumor effect in recent years. Nevertheless, it keeps unclear whether the usage of metformin is beneficial or unbeneficial in treating bladder cancer. Thus, a meta-analysis was conducted to explore the long-term effect of metformin on the incidence of bladder cancer and OS, PFS, DSS and RFS in bladder cancer patients with T2DM.Method: We aim to collect evidence of the association between the usage of metformin and the incidence and treatment outcome of bladder cancer. We searched PubMed, Embase, Ovid Medline and Cochrane Library up to February 2021 to get effective literature reporting the effects of metformin in bladder cancer. The main outcomes were the protective effects of metformin on the incidence, overall survival (OS), recurrence-free survival (RFS), progression-free survival (PFS), and disease-specific survival (DSS) of bladder cancer. And OR (odds ratio) and HR (hazard ratio) with their 95%CI were pooled. Two independent researchers assessed the quality of included studies using the Newcastle-Ottawa Scale (NOS).Results: We involved 12 studies meeting the inclusion criteria, including a total of 1,552,773 patients. The meta-analysis showed that use of metformin could decrease the incidence (OR = 0.45, 95%CI = 0.37–0.56; p < 0.01) and prolong recurrence-free-survival (HR = 0.56, 95%CI = 0.41–0.76; p = 0.91) of bladder cancer. However, there were no significant protective effects in the overall survival (HR = 0.93, 95%CI = 0.67–1.28, p = 0.05), disease-specific-survival (HR = 0.73, 95%CI = 0.47–1.16; p = 0.01), and progression-free-survival (HR = 0.78, 95%CI = 0.53–1.15, p = 0.34).Conclusion: The results revealed that the usage of metformin could reduce the incidence of bladder cancer and prolong the prognosis of bladder cancer in T2DM patients, respectively. More prospective studies are needed to prove the protective role of metformin on bladder cancer.
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Affiliation(s)
| | | | | | | | | | | | | | - Qi-Dong Xia
- *Correspondence: Qi-Dong Xia, ; Jia Hu, ; Shao-Gang Wang,
| | - Jia Hu
- *Correspondence: Qi-Dong Xia, ; Jia Hu, ; Shao-Gang Wang,
| | - Shao-Gang Wang
- *Correspondence: Qi-Dong Xia, ; Jia Hu, ; Shao-Gang Wang,
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Retrospective evaluation of the impact of non-oncologic chronic drug therapy on the survival in patients with bladder cancer. Int J Clin Pharm 2021; 44:339-347. [PMID: 34724148 PMCID: PMC9007758 DOI: 10.1007/s11096-021-01343-x] [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: 02/24/2021] [Accepted: 10/18/2021] [Indexed: 12/21/2022]
Abstract
Background Chronic drug therapy may impact recurrence and survival of patients with bladder cancer and thus be of concern regarding drug choice and treatment decisions. Currently, data are conflicting for some drug classes and missing for others. Objective To analyze the impact of common non-oncologic chronic drug intake on survival in patients with bladder cancer and radical cystectomy. Setting. Patients with bladder cancer and radical cystectomy (2004–2018) at the University Hospital Munich. Method Data from an established internal database with patients with bladder cancer and radical cystectomy were included in a retrospective study. Drug therapy at the time of radical cystectomy and survival data were assessed and follow-up performed 3 months after radical cystectomy and yearly until death or present. Impact on survival was analyzed for antihypertensive, antidiabetic, anti-gout, antithrombotic drugs and statins, using the Kaplan–Meier method, log-rank test and Cox-regression models. Main outcome measure Recurrence free survival, cancer specific survival and overall survival for users versus non-users of predefined drug classes. Results Medication and survival data were available in 972 patients. Median follow-up time was 22 months (IQR 7–61). In the univariate analysis, a significant negative impact among users on recurrence free survival (n = 93; p = 0.038), cancer specific survival (n = 116; p < 0.001) and overall survival (n = 116; p < 0.001) was found for calcium-channel blockers, whereas angiotensin-receptor-blockers negatively influenced overall survival (n = 96; p = 0.020), but not recurrence free survival (n = 73; p = 0.696) and cancer specific survival (n = 96; p = 0.406). No effect of angiotensin-receptor-blockers and calcium-channel blockers was seen in the multivariate analysis. None of the other studied drugs had an impact on survival. Conclusion There was no impact on bladder cancer recurrence and survival for any of the analyzed drugs. Considering our results and the controverse findings in the literature, there is currently no evidence to withhold indicated drugs or choose specific drug classes among the evaluated non-oncologic chronic drug therapies. Thus, prospective studies are required for further insight. Trail registration This is part of the trial DRKS00017080, registered 11.10.2019.
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Kenk M, Grégoire JC, Coté MA, Connelly KA, Davis MK, Dresser G, Ghosh N, Goodman S, Johnson C, Fleshner N. Optimizing screening and management of cardiovascular health in prostate cancer: A review. Can Urol Assoc J 2020; 14:E458-E464. [PMID: 32569573 DOI: 10.5489/cuaj.6685] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
In clinical practice, cancer management does not consistently encompass screening and identification of cardiovascular (CV) risk. The use of androgen deprivation therapy (ADT) in prostate cancer has been associated with increased CV risk and development of metabolic syndrome, necessitating identification of patients at risk in this population (e.g., those with pre-existing CV disease). A multidisciplinary team of Canadian physicians was assembled to develop a series of recommendations intended to identify patients who may benefit from optimal management of their CV disease and/or modification of cardiac risk factors. A key goal was the development of a simple screening tool for identification of patients with pre-existing CV disease. This simple and inclusive set of recommendations are intended for use within urology clinics to facilitate holistic approaches and simplify the management of patients.
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Affiliation(s)
- Miran Kenk
- Department of Surgical Oncology, Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
| | | | - Marc-Andre Coté
- Centre hospitalier universitaire de Quebec, Québec City, QC, Canada
| | - Kim A Connelly
- St. Michael's Hospital Li Ka Shing Knowledge Institute, Toronto, ON, Canada
| | - Margot K Davis
- University of British Columbia Diamond Health Care Center, Vancouver, BC, Canada
| | - George Dresser
- Division of Clinical Pharmacology, Department of Medicine, Western University, London, ON, Canada
| | - Nina Ghosh
- Queensway Carleton Hospital, University of Ottawa Heart Institute, Ottawa, ON, Canada
| | - Shaun Goodman
- Division of Cardiology, St. Michael's Hospital, Toronto, ON, Canada
| | | | - Neil Fleshner
- Department of Surgical Oncology, Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
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Garg T, Young AJ, O'Keeffe-Rosetti M, McMullen CK, Nielsen ME, Murphy TE, Kirchner HL. Association between metabolic syndrome and recurrence of nonmuscle-invasive bladder cancer in older adults. Urol Oncol 2020; 38:737.e17-737.e23. [PMID: 32409197 DOI: 10.1016/j.urolonc.2020.04.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2020] [Revised: 04/06/2020] [Accepted: 04/10/2020] [Indexed: 01/21/2023]
Abstract
BACKGROUND Nonmuscle-invasive bladder cancer (NMIBC) disproportionately affects older adults who often have coexisting chronic conditions such as metabolic syndrome (MetS). Although prior research suggests that MetS is a risk factor for NMIBC, limited data exists on whether MetS is associated with NMIBC recurrence. Our objective was to evaluate the association between MetS and recurrence in older adults treated for NMIBC. METHODS We identified 1,485 older (age ≥60 years) NMIBC patients (American Joint Committee on Cancer Stage ≤1) from 2community-based health systems. Using data from the health systems' electronic medical record, MetS was defined as the presence of three of the following: diagnosis codes indicating hypertension, hyperlipidemia, diabetes, or body mass index >30. Follow up time was determined by date of the last follow up in the tumor registry and censored at 10 years. Cox proportional hazards regression of time to recurrence that accounts for the competing risk of death included adjustment for age, sex, smoking status, health system, NMIBC stage/grade, tumor size, and number of specimens with cancer. RESULTS Overall, 341 patients (23%) met MetS criteria. Median follow up was 5.9 years and 582 patients (39.2%) died. Patients with MetS were more frequently male (84.2%), and mostly current/former smokers (82.6%). By 10 years, 34.1% of the cohort had experienced a recurrence. After accounting for the competing risk of death, there was no association between MetS and time to recurrence (adjusted hazard ratio, 0.88, 95% confidence interval 0.70-1.11, P = 0.28). Patients without MetS had more 0a/low grade recurrences (49.1% vs. 41.4%), though differences were not significant. CONCLUSION We found no association between MetS and risk of NMIBC recurrence in this large, multisite cohort of older adults with NMIBC. In order to design personalized care for older NMIBC patients, future research is needed to evaluate associations between common chronic conditions and a variety of oncologic outcomes.
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Affiliation(s)
- Tullika Garg
- Department of Urology, Geisinger, Danville, PA; Department of Population Health Sciences, Geisinger, Danville, PA.
| | | | | | - Carmit K McMullen
- Center for Health Research, Kaiser Permanente Northwest, Portland, OR
| | - Matthew E Nielsen
- Department of Urology, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC; Department of Epidemiology, Health Policy, and Management, University of North Carolina at Chapel Hill, Gillings School of Global Public Health, Chapel Hill, NC
| | - Terrence E Murphy
- Section of Geriatrics, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT
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Zuniga KB, Graff RE, Feiger DB, Meng MV, Porten SP, Kenfield SA. Lifestyle and Non-muscle Invasive Bladder Cancer Recurrence, Progression, and Mortality: Available Research and Future Directions. Bladder Cancer 2020; 6:9-23. [PMID: 34095407 PMCID: PMC8174672 DOI: 10.3233/blc-190249] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
BACKGROUND: A broad, comprehensive review of studies exploring associations between lifestyle factors and non-muscle invasive bladder cancer (NMIBC) outcomes is warranted to consolidate recommendations and identify gaps in research. OBJECTIVE: To summarize the literature on associations between lifestyle factors and clinical outcomes among patients with NMIBC. METHODS: PubMed was systematically queried for articles published through March 2019 regarding lifestyle factors and recurrence, progression, cancer-specific mortality, and all-cause mortality among patients with NMIBC. RESULTS: Notwithstanding many ambiguities, there is good-quality evidence suggesting a benefit of smoking avoidance/cessation, healthy body mass index (BMI), and type II diabetes mellitus prevention and treatment. Lactobacillus casei probiotic supplementation may reduce recurrence. There have been individual studies suggesting a benefit for uncooked broccoli and supplemental vitamin E as well as avoidance of supplemental vitamin B9, areca nut chewing, and a “Western diet” pattern high in fried foods and red meat. Additional studies do not suggest associations between NMIBC outcomes and use of fibrin clot inhibitors; insulin and other oral hypoglycemics; statins; supplemental selenium, vitamin A, vitamin C, and vitamin B6; fluid intake and intake of specific beverages (e.g., alcohol, coffee, green tea, cola); various dietary patterns (e.g., Tex-Mex, high fruit and vegetable, low-fat); and occupational and chemical exposures. CONCLUSIONS: Despite a myriad of publications on lifestyle factors and NMIBC, a need remains for research on unexplored associations (e.g., physical activity) and further studies that can elucidate causal effects. This would inform future implementation strategies for healthy lifestyle change in NMIBC patients.
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Affiliation(s)
- Kyle B Zuniga
- Department of Urology, University of California, San Francisco, CA, USA.,Osher Center for Integrative Medicine, University of California, San Francisco, CA, USA.,College of Physicians and Surgeons, Columbia University Medical Center, New York, NY, USA
| | - Rebecca E Graff
- Department of Epidemiology and Biostatistics, University of California, San Francisco, CA, USA
| | - David B Feiger
- Department of Urology, University of California, San Francisco, CA, USA.,School of Medicine, Duke University Medical Center, Durham, NC, USA.,Department of Emergency Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Maxwell V Meng
- Department of Urology, University of California, San Francisco, CA, USA
| | - Sima P Porten
- Department of Urology, University of California, San Francisco, CA, USA
| | - Stacey A Kenfield
- Department of Urology, University of California, San Francisco, CA, USA
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