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Banakhar MA. Comparative effectiveness and safety of cocktail therapy versus combined sodium hyaluronate and chondroitin sulphate (Ialuril): Intravesical instillation treatment of interstitial cystitis/bladder pain syndrome, which one to use? JOURNAL OF CLINICAL UROLOGY 2022. [DOI: 10.1177/20514158211073449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Objective: To compare effectiveness and safety of intravesical therapy (sodium hyaluronate and chondroitin sulphate) Ialuril versus cocktail therapy for treatment of interstitial cystitis (IC). Materials and methods: Prospective study from March 2013 till August 2019 including all IC patients presented to our urology clinic. All IC patients underwent basic workup including urine test, urodynamic test and gynaecological/genital exam. Postoperatively, all patients received intravesical therapy. Patients were randomly allocated to either cocktail therapy (NaOH + heparin + lidocaine) or Ialuril (Sodium hyaluronate and chondroitin sulphate) therapy as intravesical seven cycles. The primary outcome was therapy effectiveness using Interstitial Cystitis Problem Index (ICPI) and Interstitial Cystitis Symptom Index (ICSI) improvement post therapy. Secondary outcome were for complications and compliance. Results: Total of 32 patients were included (6 males, 26 females) with mean age of 43 years (24–72 years), mean follow-up 36 months (15–72 months). Cocktail intravesical therapy was used in 21 patients while 11 patients received Ialuril. All patients showed improvement on their ICSI and ICPI scores post therapy from their baseline. Statistical analysis showed no significant difference between both groups regarding improvement in ICSI and ICPI index with p-value = 0.552 and p = 0.79, respectively. Infection and non-compliance is significantly high in the cocktail arm p = 0.004, p = 0.027 Conclusions: Intravesical cocktail therapy was equally effective as Ialuril in treating IC. Ialuril was preferred over cocktail therapy because of lower side effect; when considering ulcerative IC subgroup, we need large randomised controlled trials to compare therapy benefits.
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Affiliation(s)
- Mai Ahmed Banakhar
- Urology Department, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
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Moussa M, Abou Chakra M, Dellis A, Moussa Y, Papatsoris A. Pharmacotherapeutic advances for recurrent urinary tract infections in women. Expert Opin Pharmacother 2020; 21:2011-2026. [PMID: 32717156 DOI: 10.1080/14656566.2020.1795128] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
INTRODUCTION Treatment of recurrent Urinary tract infections (UTIs) has become challenging because of the dramatic increase in the rates of recurrent infection andof multidrug-resistant (MDR) infections. AREAS COVERED The authors review recurrent UTIs(rUTI) management in women. EXPERT OPINION Continuous or post-coital prophylaxis with low-dose antimicrobials or intermittent self-treatment has all been demonstrated to be effective in managing rUTIs in women. Intravaginal estrogen therapy , shows potential toward preventing rUTI. Oral vaccine Uro-Vaxom seems to reduce the number of UTIs. There is evidence that other therapies (e.g. cranberry, Methenamine hippurate, oral D-mannose) may decrease the number of symptomatic UTIs. The treatment of CRE-UTIs is focused on a colistin backbone. Carbapenems are considered first-line agents for UTIs caused by ESBL, but their use is associated with increased MDR. The usage of non-carbapenem for the treatment of ESBL UTIs is necessary. Cefepime, Piperacillin-Tazobactam, Ceftolozane-Tazobactam, and Ceftazidime-Avibactam are justified options. Oral therapy with Pivmecillinam, Fosfomycin, and Nitrofurantoin can be used against uncomplicated UTIs due to ESBL infection.
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Affiliation(s)
- Mohamad Moussa
- Department of Urology, Al Zahraa Hospital, University Medical Center, Lebanese University , Beirut, Lebanon
| | - Mohamed Abou Chakra
- Department of Urology, Al Zahraa Hospital, University Medical Center, Lebanese University , Beirut, Lebanon
| | - Athanasios Dellis
- Department of Surgery, School of Medicine, Aretaieion Hospital, National and Kapodistrian University of Athens , Athens, Greece.,2nd Department of Urology, School of Medicine, Sismanoglio Hospital, National and Kapodistrian University of Athens , Athens, Greece
| | - Yasmin Moussa
- Clinic of Dermatology, Dr Brinkmann, Schult & Samini-Fard , Gladbeck, Germany
| | - Athanasios Papatsoris
- 2nd Department of Urology, School of Medicine, Sismanoglio Hospital, National and Kapodistrian University of Athens , Athens, Greece
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Botulinum injections for myofascial pelvic pain. Int Urogynecol J 2020; 32:1151-1156. [PMID: 32696187 DOI: 10.1007/s00192-020-04435-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 05/18/2020] [Indexed: 10/23/2022]
Abstract
INTRODUCTION AND HYPOTHESIS The aim of this study was to assess the impact of botulinum toxin injection in women with myofascial pelvic pain (MFPP) syndrome of the pelvic floor who had failed conservative treatment. METHODS This was a retrospective descriptive observational study of 48 consecutive patients receiving botulinum toxin to the pelvic floor for MFPP syndrome in a tertiary teaching hospital over an 8-year period. Trigger points were identified, and botulinum toxin was injected into the pelvic floor at the trigger points in doses ranging from 50 to 200 units. The patient-reported global impression of improvement scale was used to evaluate the success at follow-up, and adverse effects were recorded. RESULTS Forty-six women attended for follow-up at 3-6 months. Of these, 34 (74%) reported an improvement in their symptoms (slightly better, much better, very much better), 12 (26%) had no change, and no patients reported worsening of symptoms. One patient (2%) reported transient postoperative faecal incontinence, which resolved after 2 weeks. There appeared to be no difference in outcome between the doses. CONCLUSIONS Botulinum toxin injection into the pelvic floor of women with MFPP appears to be beneficial in those who have failed conservative treatment. Prospective studies, including dose-finding studies, are now required.
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Abdal Dayem A, Kim K, Lee SB, Kim A, Cho SG. Application of Adult and Pluripotent Stem Cells in Interstitial Cystitis/Bladder Pain Syndrome Therapy: Methods and Perspectives. J Clin Med 2020; 9:jcm9030766. [PMID: 32178321 PMCID: PMC7141265 DOI: 10.3390/jcm9030766] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 03/04/2020] [Accepted: 03/09/2020] [Indexed: 12/11/2022] Open
Abstract
Interstitial cystitis/bladder pain syndrome (IC/BPS) is a multifactorial, chronic disease without definite etiology characterized by bladder-related pelvic pain. IC/BPS is associated with pain that negatively affects the quality of life. There are various therapeutic approaches against IC/BPS. However, no efficient therapeutic agent against IC/BPS has been discovered yet. Urothelium dysfunction is one of the key factors of IC/BPS-related pathogenicity. Stem cells, including adult stem cells (ASCs) and pluripotent stem cells (PSCs), such as embryonic stem cells (ESCs) and induced PSCs (iPSCs), possess the abilities of self-renewal, proliferation, and differentiation into various cell types, including urothelial and other bladder cells. Therefore, stem cells are considered robust candidates for bladder regeneration. This review provides a brief overview of the etiology, pathophysiology, diagnosis, and treatment of IC/BPS as well as a summary of ASCs and PSCs. The potential of ASCs and PSCs in bladder regeneration via differentiation into bladder cells or direct transplantation into the bladder and the possible applications in IC/BPS therapy are described in detail. A better understanding of current studies on stem cells and bladder regeneration will allow further improvement in the approaches of stem cell applications for highly efficient IC/BPS therapy.
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Affiliation(s)
- Ahmed Abdal Dayem
- Department of Stem Cell & Regenerative Biotechnology and Incurable Disease Animal Model and Stem Cell Institute (IDASI), Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Korea; (A.A.D.); (K.K.); (S.B.L.)
| | - Kyeongseok Kim
- Department of Stem Cell & Regenerative Biotechnology and Incurable Disease Animal Model and Stem Cell Institute (IDASI), Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Korea; (A.A.D.); (K.K.); (S.B.L.)
| | - Soo Bin Lee
- Department of Stem Cell & Regenerative Biotechnology and Incurable Disease Animal Model and Stem Cell Institute (IDASI), Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Korea; (A.A.D.); (K.K.); (S.B.L.)
| | - Aram Kim
- Department of Urology, Konkuk University Medical Center, Konkuk University School of Medicine, Seoul 05029, Korea
- Correspondence: (A.K.); (S.-G.C.); Tel.: +82-2-2030-7675 (A.K.); +82-2-450-4207 (S.-G.C.); Fax: +82-2-2030-7748 (A.K.); +82-2-450-4207 (S.-G.C.)
| | - Ssang-Goo Cho
- Department of Stem Cell & Regenerative Biotechnology and Incurable Disease Animal Model and Stem Cell Institute (IDASI), Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Korea; (A.A.D.); (K.K.); (S.B.L.)
- Correspondence: (A.K.); (S.-G.C.); Tel.: +82-2-2030-7675 (A.K.); +82-2-450-4207 (S.-G.C.); Fax: +82-2-2030-7748 (A.K.); +82-2-450-4207 (S.-G.C.)
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Abstract
Chronic pelvic pain is defined as persistent painful condition which lasts for at least six months under umbilicus. Numerous factors are blamed for etiopathogenesis, and quality of life of individuals is adversely affected. Chronic pain as well as functional disorders are accompanied to chronic pelvic pain. The treatment and rehabilitation program should be tailored for specific causes, targeting general pain treatment. Consequently, chronic pelvic pain management can be used to propose personalized treatment options and include patient education, behavioral therapy, and a biopsychosocial approach. Interdisciplinary teamwork and collaboration are essential for facilitating patient-centered rehabilitation.
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Dellis AE, Kostakopoulos N, Papatsoris AG. Is there an effective therapy of interstitial cystitis/bladder pain syndrome? Expert Opin Pharmacother 2019; 20:1417-1419. [PMID: 31070933 DOI: 10.1080/14656566.2019.1615056] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Athanasios E Dellis
- 2nd Department of Surgery, Aretaieion Academic Hospital, School of Medicine, National and Kapodistrian University of Athens , Athens , Greece.,1st Department of Urology, Laikon General Hospital, School of Medicine, National and Kapodistrian University of Athens , Athens , Greece
| | - Nikolaos Kostakopoulos
- 2nd Department of Urology, Sismanogleion General Hospital, School of Medicine, National and Kapodistrian University of Athens , Athens , Greece
| | - Athanasios G Papatsoris
- 2nd Department of Urology, Sismanogleion General Hospital, School of Medicine, National and Kapodistrian University of Athens , Athens , Greece
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Dellis AE, Mozaffari S, Nikfar S, Papatsoris AG, Abdollahi M. Is there an appropriate strategy for treating co-morbid irritable bowel syndrome and bladder pain syndrome? Expert Opin Pharmacother 2018; 20:411-414. [PMID: 30589379 DOI: 10.1080/14656566.2018.1559821] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
INTRODUCTION Two of the most frequent components of chronic pelvic pain syndrome (CPPS) are irritable bowel syndrome (IBS) and bladder pain syndrome (BPS), characterized by considerable overlapping symptoms and pathophysiology. Currently, its management is challenging meaning there is high the demand for novel efficient therapeutics to aid patient care and to tackle the socioeconomic burden of IBS and BPS. As there are presently no sufficient treatment strategies, identifying the mechanisms that result in their main symptoms is the opportunity for developing appropriate therapies. Areas covered: Herein, the authors explore the potential common treatment strategies for co-morbid IBS and BPS and highlight the absolute need for further research of these deliberating clinical entities. Expert opinion: In the future, the authors summise that the discovery of predictive molecular biomarkers combined with clinical phenotypic categorization will likely allow for more definitive differentiation of patients and thus for better treatment options. Furthermore, it has been suggested that effective IBS treatment strategies would be of great value to co-morbid IBS and BPS therapy.
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Affiliation(s)
- Athanasios E Dellis
- a Second Department of Surgery, Aretaieion Academic Hospital, School of Medicine , National and Kapodistrian University of Athens , Athens , Greece.,b First Department of Urology, Laikon General Hospital, School of Medicine , National and Kapodistrian University of Athens , Athens , Greece
| | - Shilan Mozaffari
- c Division of Pharmaceutical and Narcotic Affaire, Vice Chancellor for Food and Drug , Kurdistan University of Medical Sciences , Sanandaj , Iran.,d Evidence-based Evaluation of Cost-Effectiveness and Clinical Outcomes Group, The Institute of Pharmaceutical Sciences (TIPS) , Tehran University of Medical Sciences , Tehran , Iran
| | - Shekoufeh Nikfar
- d Evidence-based Evaluation of Cost-Effectiveness and Clinical Outcomes Group, The Institute of Pharmaceutical Sciences (TIPS) , Tehran University of Medical Sciences , Tehran , Iran.,e Department of Pharmacoeconomics and Pharmaceutical Administration, Faculty of Pharmacy and Pharmaceutical Policy Research Center , Tehran University of Medical Sciences , Tehran , Iran
| | - Athanasios G Papatsoris
- f Second Department of Urology, Sismanogleion General Hospital, School of Medicine , National and Kapodistrian University of Athens , Athens , Greece
| | - Mohammad Abdollahi
- g Toxicology and Diseases Group, The Institute of Pharmaceutical Sciences (TIPS) , Tehran University of Medical Sciences , Tehran , Iran.,h Department of Toxicology and Pharmacology, Faculty of Pharmacy , Tehran University of Medical Sciences , Tehran , Iran
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Dellis AE, Papatsoris AG. Bridging pharmacotherapy and minimally invasive surgery in interstitial cystitis/bladder pain syndrome treatment. Expert Opin Pharmacother 2018; 19:1369-1373. [PMID: 30074829 DOI: 10.1080/14656566.2018.1505865] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
INTRODUCTION Interstitial cystitis/bladder pain syndrome (IC/BPS) is a painful and debilitating clinical entity which is challenging to diagnose and even more difficult to treat. Unfortunately, none of the existing oral and intravesical medications have been established as effective and therefore relevant research is ongoing. Areas covered: In this review, the authors present established and emerging treatment options for IC/BPS in terms of medication and minimal invasive procedures. Both American and European Urological Association Guidelines recommend multimodal behavioral techniques alongside oral (e.g. amitriptyline and pentosan polysulfate sodium) or minimally invasive treatments (e.g. dimethyl sulfoxide, botulinum toxin, chondroitin sulfate, triamcinolone, hyaluronic acid, and lidocaine). Novel treatment modalities include immunomodulating drugs, stem cell therapy, nerve growth factor, and ASP6294. Expert opinion: IC/BPS is still a pathophysiological enigma with multifactorial etiopathogenesis that may be controlled but not completely cured. Patient-tailored phenotype-directed multimodal therapy is the most promising treatment strategy. Combined phenotypic categorization with specific biomarkers could help toward better treatment.
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Affiliation(s)
- Athanasios E Dellis
- a 2nd Department of Surgery, Aretaieion Academic Hospital, School of Medicine , National and Kapodistrian University of Athens , Athens , Greece.,b 1st Department of Urology, Laikon General Hospital, School of Medicine , National and Kapodistrian University of Athens , Athens , Greece
| | - Athanasios G Papatsoris
- c 2nd Department of Urology, Sismanogleion General Hospital, School of Medicine , National and Kapodistrian University of Athens , Athens , Greece
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Meng E, Hsu YC, Chuang YC. Advances in intravesical therapy for bladder pain syndrome (BPS)/interstitial cystitis (IC). Low Urin Tract Symptoms 2018; 10:3-11. [DOI: 10.1111/luts.12214] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Revised: 11/19/2017] [Accepted: 12/01/2017] [Indexed: 12/22/2022]
Affiliation(s)
- En Meng
- Department of Urology, Tri-Service General Hospital; National Defense Medical Center; Taipei Taiwan
| | - Yu-Chao Hsu
- Department of Urology; Linko Chang Gung Memorial Hospital; Taipei Taiwan
- College of Medicine; Chang Gung University; Taipei Taiwan
| | - Yao-Chi Chuang
- Department of Urology; Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine; Kaohsiung Taiwan
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Tutolo M, Ammirati E, Castagna G, Klockaerts K, Plancke H, Ost D, Van der Aa F, De Ridder D. A prospective randomized controlled multicentre trial comparing intravesical DMSO and chondroïtin sulphate 2% for painful bladder syndrome/interstitial cystitis. Int Braz J Urol 2017; 43:134-141. [PMID: 28124536 PMCID: PMC5293394 DOI: 10.1590/s1677-5538.ibju.2016.0302] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Accepted: 10/31/2016] [Indexed: 12/04/2022] Open
Abstract
Objective To compare effectiveness of intravesical chondroïtin sulphate (CS) 2% and dimethyl sulphoxide (DMSO) 50% in patients with painful bladder syndrome/interstitial cystitis (PBS/IC). Materials and methods Patients were randomized to receive either 6 weekly instillations of CS 2% or 50% DMSO. Primary endpoint was difference in proportion of patients achieving score 6 (moderately improved) or 7 (markedly improved) in both groups using the Global Response Assessment (GRA) scale. Secondary parameters were mean 24-hours frequency and nocturia on a 3-day micturition dairy, changes from baseline in O’Leary-Sant questionnaire score and visual analog scale (VAS) for suprapubic pain. Results Thirty-six patients were the intention to treat population (22 in CS and 14 in DMSO group). In DMSO group, 57% withdrew consent and only 6 concluded the trial. Major reasons were pain during and after instillation, intolerable garlic odor and lack of efficacy. In CS group, 27% withdrew consent. Compared with DMSO group, more patients in CS group (72.7% vs. 14%) reported moderate or marked improvement (P=0.002, 95% CI 0.05-0.72) and achieved a reduction in VAS scores (20% vs. 8.3%). CS group performed significantly better in pain reduction (-1.2 vs. -0.6) and nocturia (-2.4 vs. -0.7) and better in total O’Leary reduction (-9.8 vs. -7.2). CS was better tolerated. The trial was stopped due to high number of drop-outs with DMSO. Conclusions Intravesical CS 2% is viable treatment for PBS/IC with minimal side effects. DMSO should be used with caution and with active monitoring of side effects. More randomized controlled studies on intravesical treatments are needed.
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Affiliation(s)
- Manuela Tutolo
- Department of Urology, University Hospitals, KU Leuven, Belgium
| | - Enrico Ammirati
- Division of Urology, Città della Salute e della Scienza, Molinette Hospital Hospital, University of Studies of Turin, Turin, Italy
| | - Giulia Castagna
- Department of Urological Research Institute, IRCCS Ospedale San Raffaele, Division of Oncology/Unit of Urology, Milan, Italy
| | | | | | - Dieter Ost
- Urology, St. Blasius Hospital, Dendermonde, Belgium
| | | | - Dirk De Ridder
- Department of Urology, University Hospitals, KU Leuven, Belgium
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Chuang YC, Chermansky C, Kashyap M, Tyagi P. Investigational drugs for bladder pain syndrome (BPS) / interstitial cystitis (IC). Expert Opin Investig Drugs 2016; 25:521-9. [PMID: 26940379 DOI: 10.1517/13543784.2016.1162290] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
INTRODUCTION Bladder pain syndrome (BPS)/interstitial cystitis (IC) is associated with sensory lower urinary tract symptoms. Unfortunately, many of the existing oral treatments are ineffective in most patients of BPS/IC, which is the motivation for developing new drugs and therapeutic approaches. This review covers the latest drugs that have been investigated in BPS/IC patients. Intravesical treatments offer the opportunity to directly target the painful bladder with less systemic side effects. AREAS COVERED In this review, the authors analyze the existing literature supporting the treatment of BPS/IC with conventional drugs including heparin, hyaluronic acid, chondroitin sulfate, and dimethylsulfoxide (DMSO). Furthermore, investigational drugs such as tanezumab and adalimumab, capable of sequestering nerve growth factor (NGF), and Tumor necrosis factor-α (TNF- α) are discussed. Investigational treatments such as liposomes, botulinum toxin (BTX), liposomal BTX, PD-0299685 (a Ca(2+) channel ɑ2δ ligand), continuous intravesical lidocaine, and AQX-1125 (a novel SHIP1 activating compound) are also covered. EXPERT OPINION New investigational drugs offer promising improvements in clinical outcomes for BPS/IC patients; however, BPS/IC is a chronic pain disorder that is very vulnerable to a strong placebo effect. In addition, BPS/IC is a heterogeneous disorder that can be classified into several phenotypes. Since different phenotypes of BPS/IC respond differently to systemic and intravesical treatments, the authors believe that new drugs developed for BPS/IC are more likely to meet their predetermined clinical endpoints if the inclusion/exclusion criterion is tailored to specific phenotype of BPS/IC patients.
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Affiliation(s)
- Yao-Chi Chuang
- a Department of Urology, Kaohsiung Chang Gung Memorial Hospital , Chang Gung University College of Medicine , Kaohsiung , Taiwan.,b Institute of Medicine , Chung Shan Medical University , Taichung , Taiwan
| | - Christopher Chermansky
- c Department of Urology , University of Pittsburgh School of Medicine , Pittsburgh , PA , USA
| | - Mahendra Kashyap
- c Department of Urology , University of Pittsburgh School of Medicine , Pittsburgh , PA , USA
| | - Pradeep Tyagi
- c Department of Urology , University of Pittsburgh School of Medicine , Pittsburgh , PA , USA
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Scott K, Dmochowski RR, Padmanabhan P. Delivery methods for drugs used in the treatment of overactive bladder. Expert Opin Drug Deliv 2015; 13:361-71. [PMID: 26654220 DOI: 10.1517/17425247.2016.1130033] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
INTRODUCTION Overactive bladder affects a significant portion of the population and results in prescribing of numerous medications for its treatment. Traditional drug delivery systems used in therapy are associated with multiple commonly reported side effects. Adherence rates with use of these medications are low. It is likely that low adherence rates with the use of these drugs are due in some part to drug side effects. It is therefore important that alternate methods for drug delivery be explored to reduce side effect profiles and improve patient compliance. AREAS COVERED This article addresses the various forms of drug delivery for overactive bladder medications, focusing on those currently in use. Newer systems of drug delivery are also discussed. Through thorough review of research data, randomized trials and meta analyses, drug delivery systems were evaluated. EXPERT OPINION EXPERT OPINION favors the use of the transdermal patch and recognizes the necessity for further research and development of other delivery methods. The patch delivery method offers the most effective means of treating symptoms and minimizing drug related adverse side effects leading to treatment discontinuation. Development of OAB medications aimed at alternate receptor targets has the potential to facilitate the creation of new treatment methods to compete with the current standard of care used in OAB treatment.
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Affiliation(s)
- Katie Scott
- a School of Medicine , The University of Kansas , Kansas City , KS , USA
| | | | - Priya Padmanabhan
- c Department of Urology , The University of Kansas , Kansas City , KS , USA
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Bladder uptake of liposomes after intravesical administration occurs by endocytosis. PLoS One 2015; 10:e0122766. [PMID: 25811468 PMCID: PMC4374861 DOI: 10.1371/journal.pone.0122766] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2014] [Accepted: 02/17/2015] [Indexed: 02/06/2023] Open
Abstract
Liposomes have been used therapeutically and as a local drug delivery system in the bladder. However, the exact mechanism for the uptake of liposomes by bladder cells is unclear. In the present study, we investigated the role of endocytosis in the uptake of liposomes by cultured human UROtsa cells of urothelium and rat bladder. UROtsa cells were incubated in serum-free media with liposomes containing colloidal gold particles for 2 h either at 37°C or at 4°C. Transmission Electron Microscopy (TEM) images of cells incubated at 37°C found endocytic vesicles containing gold inside the cells. In contrast, only extracellular binding was noticed in cells incubated with liposomes at 4°C. Absence of liposome internalization at 4°C indicates the need of energy dependent endocytosis as the primary mechanism of entry of liposomes into the urothelium. Flow cytometry analysis revealed that the uptake of liposomes at 37°C occurs via clathrin mediated endocytosis. Based on these observations, we propose that clathrin mediated endocytosis is the main route of entry for liposomes into the urothelial layer of the bladder and the findings here support the usefulness of liposomes in intravesical drug delivery.
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