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Abubakar M, Prasad R, Salim SS, Basavaraju D, Khan M, Lateef IK, Furqan A, Raza S, Gupta I, Singla D, Adil H, Naeem A. Orthostatic Hypotension in Benign Prostatic Hyperplasia Patients and Its Association With Alpha-1 Antagonist Use: A Comprehensive Literature Review. Cureus 2023; 15:e44097. [PMID: 37750139 PMCID: PMC10518119 DOI: 10.7759/cureus.44097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/25/2023] [Indexed: 09/27/2023] Open
Abstract
Orthostatic hypotension (OH) is frequently observed in benign prostatic hyperplasia (BPH) patients undergoing alpha-1 adrenergic antagonist (A1AA) therapy. While previous studies have acknowledged the prevalence of OH in BPH patients on A1AAs, limited data exist on ranking the safety of different A1AAs. This comprehensive review explores the underlying mechanisms of OH, examines numerous factors influencing its development, and provides insights into effective treatment strategies such as hydration, gradual postural changes, leg exercises, compression stockings, and tilt-table training for BPH management. The review highlights the significance of individualized care, interdisciplinary collaboration, and further research to optimize A1AA treatment, improve patient outcomes, and enhance quality of life.
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Affiliation(s)
- Muhammad Abubakar
- Department of Internal Medicine, Siddique Sadiq Memorial Trust Hospital, Gujranwala, PAK
- Department of Internal Medicine, Ameer-ud-Din Medical College, Lahore General Hospital, Lahore, PAK
| | - Rachna Prasad
- Department of Internal Medicine, Stanley Medical College, Chennai, IND
| | - Siffat S Salim
- Department of Surgery, Holy Family Red Crescent Medical College Hospital, Dhaka, BGD
| | - Deepak Basavaraju
- Department of Internal Medicine, Mysore Medical College and Research Institute, Mysore, IND
| | - Munazza Khan
- Department of Internal Medicine, Medical University Pleven, Pleven, BGR
| | - Ibrahim K Lateef
- Department of Internal Medicine, Medical University Pleven, Pleven, BGR
| | - Ahmad Furqan
- Department of Internal Medicine, Lahore Medical and Dental College, Lahore, PAK
| | - Saud Raza
- Department of Internal Medicine, Ameer-ud-Din Medical College, Lahore General Hospital, Lahore, PAK
| | - Ishita Gupta
- Department of Internal Medicine, Dr. Baba Saheb Ambedkar Medical College and Hospital, New Delhi, IND
| | - Deepak Singla
- Department of Internal Medicine, Government Medical College, Patiala, Patiala, IND
| | - Hira Adil
- Department of Community Medicine, Khyber Girls Medical College, Peshawar, PAK
| | - Ather Naeem
- Department of Cardiology, Punjab Institute of Cardiology, Lahore, PAK
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Jindan L, Xiao W, Liping X. Evolving Role of Silodosin for the Treatment of Urological Disorders – A Narrative Review. Drug Des Devel Ther 2022; 16:2861-2884. [PMID: 36051157 PMCID: PMC9427207 DOI: 10.2147/dddt.s373659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Accepted: 07/26/2022] [Indexed: 11/25/2022] Open
Abstract
Use of α-androgenic receptor blockers remains a mainstay therapeutic approach for the treatment of urological diseases. Silodosin is recommended over other α-blockers for the treatment of lower urinary tract symptoms (LUTS) and benign prostate hyperplasia (BPH), due to its high α1A uroselectivity. Current research data suggest that silodosin is efficacious in the management of various urological diseases. Thus, we herein review the current evidence of silodosin related to its efficacy and tolerability and appraise the available literature that might ultimately aid in management of various urological conditions at routine clinical practice. Literature reveals that silodosin is beneficial in improving nocturia events related to LUTS/BPH. Silodosin exerts effect on relaxing muscles involved in detrusor obstruction, therefore prolonging the need for patients undergoing invasive surgery. Silodosin treatment, either as a monotherapy or combination, significantly improves International Prostate Symptom Score (IPSS) including both storage and voiding symptoms in patients with BPH/LUTS. Patients on other treatment therapies such as phosphodiesterase 5 inhibitors or other α-blockers are well managed with this drug. Steadily, silodosin has proved beneficial in the treatment of other urological disorders such as chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS), overactive bladder/acute urinary retention (AUR), premature ejaculation (PE), and prostate cancer post brachytherapy-induced progression. In patients with distal ureteral stones, silodosin treatment is beneficial in decreasing stone expulsion time without affecting stone expulsion rate or analgesic need. Moreover, there were significant improvements in intravaginal ejaculation latency time, quality of life scores, and decrease in PE profile among patients with PE. Silodosin has also demonstrated promising results in increasing the likelihood of successful trial without catheter in patients with AUR and those taking antihypertensive drugs. Reports from Phase II studies have shown promising role of silodosin in the treatment of CP/CPPS as well as facilitating ureteral stone passage. From the robust data in this review, further silodosin treatment strategies in the management of different urological conditions need to be focused on.
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Affiliation(s)
- Luo Jindan
- Department of Urology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, People’s Republic of China
| | - Wang Xiao
- Department of Urology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, People’s Republic of China
| | - Xie Liping
- Department of Urology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, People’s Republic of China
- Correspondence: Xie Liping, Department of Urology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, People’s Republic of China, Email
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Puga AM, Lopez-Oliva S, Trives C, Partearroyo T, Varela-Moreiras G. Effects of Drugs and Excipients on Hydration Status. Nutrients 2019; 11:nu11030669. [PMID: 30897748 PMCID: PMC6470661 DOI: 10.3390/nu11030669] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Revised: 03/14/2019] [Accepted: 03/15/2019] [Indexed: 12/17/2022] Open
Abstract
Despite being the most essential nutrient, water is commonly forgotten in the fields of pharmacy and nutrition. Hydration status is determined by water balance (the difference between water input and output). Hypohydration or negative water balance is affected by numerous factors, either internal (i.e., a lack of thirst sensation) or external (e.g., polypharmacy or chronic consumption of certain drugs). However, to date, research on the interaction between hydration status and drugs/excipients has been scarce. Drugs may trigger the appearance of hypohydration by means of the increase of water elimination through either diarrhea, urine or sweat; a decrease in thirst sensation or appetite; or the alteration of central thermoregulation. On the other hand, pharmaceutical excipients induce alterations in hydration status by decreasing the gastrointestinal transit time or increasing the gastrointestinal tract rate or intestinal permeability. In the present review, we evaluate studies that focus on the effects of drugs/excipients on hydration status. These studies support the aim of monitoring the hydration status in patients, mainly in those population segments with a higher risk, to avoid complications and associated pathologies, which are key axes in both pharmaceutical care and the field of nutrition.
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Affiliation(s)
- Ana M Puga
- Department of Pharmaceutical and Health Sciences, Faculty of Pharmacy, CEU San Pablo University, 28668 Madrid, Spain.
| | - Sara Lopez-Oliva
- Department of Pharmaceutical and Health Sciences, Faculty of Pharmacy, CEU San Pablo University, 28668 Madrid, Spain.
| | - Carmen Trives
- Department of Pharmaceutical and Health Sciences, Faculty of Pharmacy, CEU San Pablo University, 28668 Madrid, Spain.
| | - Teresa Partearroyo
- Department of Pharmaceutical and Health Sciences, Faculty of Pharmacy, CEU San Pablo University, 28668 Madrid, Spain.
| | - Gregorio Varela-Moreiras
- Department of Pharmaceutical and Health Sciences, Faculty of Pharmacy, CEU San Pablo University, 28668 Madrid, Spain.
- Spanish Nutrition Foundation (FEN), 28010 Madrid, Spain.
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Silodosin: An Update on Efficacy, Safety and Clinical Indications in Urology. Adv Ther 2019; 36:1-18. [PMID: 30523608 DOI: 10.1007/s12325-018-0854-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Indexed: 12/16/2022]
Abstract
INTRODUCTION Silodosin determines smooth muscle relaxation in bladder and prostate tissues, increases bladder blood flow in conditions of chronic bladder ischemia and regulates the activity of transcriptional factors responsible for stromal growth and prostate hyperplasia. Phase III trials have already demonstrated the efficacy and safety of silodosin in the treatment of patients bothered by lower urinary tract symptoms (LUTS) secondary to benign prostatic hyperplasia (BPH). OBJECTIVE We aimed to describe the rationality for the use of silodosin and to summarize the current literature on the use of Silodosin for the treatment of LUTS. METHODS PubMed and Web of Science were queried with the terms: 'silodosin' in combination (AND) with the terms 'lower urinary tract symptoms', 'LUTS', 'pathophysiology', 'symptoms' OR 'therapy'. Studies published in the last 10 years (2007-2017) in adults and core clinical journals in English were included. RESULTS Silodosin 8 mg once-daily was superior to placebo in improving IPSS total score, voiding subscore, storage subscore and QoL score, and at least as effective as tamsulosin 0.4 mg once-daily in all the efficacy analyses. In addition, studies assessing the effect on urodynamic parameters showed that silodosin determined a higher improvement in the bladder outlet obstruction index compared to other alpha1 adrenergic receptor antagonists. Concerning the safety profile, long-term data (after 9 months of treatment) confirmed the limited effect of silodosin on the cardiovascular and gastrointestinal systems. Although ejaculatory disorders represented the main complaint of patients taking silodosin, the discontinuation rate due to this condition remained low even in a long-term follow-up study (7.5%). Encouraging findings showed that silodosin may be administered as a medical expulsive therapy for promoting spontaneous stone passage of distal ureteral stones < 10 mm, to relieve LUTS in patients who underwent prostate cancer brachytherapy and to increase the likelihood of successful trials without a catheter in patients experiencing acute urinary retention. CONCLUSION Silodosin is one of the drugs approved for the treatment of BPH, being highly effective in improving not only LUTS but also urodynamic parameter impairments secondary to BPH. Moreover, it has shown efficacy as medical expulsive therapy for distal ureteral stones in previous prospective randomized trials. FUNDING Sponsorship for this study and article processing charges were funded by Recordati.
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Fusco F, Creta M, Longo N, Persico F, Franco M, Mirone V. Silodosin 8 mg improves benign prostatic obstruction in Caucasian patients with lower urinary tract symptoms suggestive of benign prostatic enlargement: results from an explorative clinical study. BMC Urol 2018; 18:12. [PMID: 29502524 PMCID: PMC5836453 DOI: 10.1186/s12894-018-0326-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2017] [Accepted: 02/22/2018] [Indexed: 01/15/2023] Open
Abstract
Background To preliminary investigate the effects of silodosin 8 mg once daily on obstruction urodynamic parameters and subjective symptoms in Caucasian patients with lower urinary tract symptoms suggestive of benign prostatic enlargement. Methods We performed a single-center, open-label, single-arm, post-marketing interventional clinical trial. Inclusion criteria were: Caucasian subjects aged ≥50 years waiting to undergo surgery for lower urinary tract symptoms suggestive of benign prostatic enlargement, international prostate symptom total score ≥ 13, international prostate symptom-quality of life score ≥ 3, prostate volume ≥ 30 ml, maximum urine flow rate ≤ 15 mL/s, bladder outlet obstruction index > 40. Eligible subjects received one capsule of silodosin 8 mg once daily for 8 weeks. Invasive urodynamic evaluations were performed at baseline and at 8-weeks follow-up. International prostate symptom questionnaire was administered at baseline, after 4-weeks and 8-weeks of treatment. Results Overall, 34 subjects were included. Mean bladder outlet obstruction index significantly decreased from 70.6 to 39.2 and bladder outlet obstruction index class improved in 16 patients (53.3%). Statistically significant improvements of mean total international prostate symptom score, mean storage sub-score, mean voiding sub-score and mean quality of life sub-score were evident after 4-weeks of treatment with further improvements after 8-weeks. At the end of the treatment, all patients declared that their condition improved enough to spare or delay surgery. Conclusions Silodosin 8 mg once daily significantly improves benign prostatic obstruction in Caucasian patients with lower urinary tract symptoms suggestive of benign prostatic enlargement waiting for surgery. Trial registration EudraCT n. 2015-002277-38 Date of registration: 15th December 2017.
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Affiliation(s)
- Ferdinando Fusco
- Department of Neurosciences, Human Reproduction and Odontostomatology, University of Naples, Federico II - Via Pansini 5, 80131, Naples, Italy.
| | - Massimiliano Creta
- Department of Neurosciences, Human Reproduction and Odontostomatology, University of Naples, Federico II - Via Pansini 5, 80131, Naples, Italy
| | - Nicola Longo
- Department of Neurosciences, Human Reproduction and Odontostomatology, University of Naples, Federico II - Via Pansini 5, 80131, Naples, Italy
| | - Francesco Persico
- Department of Neurosciences, Human Reproduction and Odontostomatology, University of Naples, Federico II - Via Pansini 5, 80131, Naples, Italy
| | - Marco Franco
- Department of Neurosciences, Human Reproduction and Odontostomatology, University of Naples, Federico II - Via Pansini 5, 80131, Naples, Italy
| | - Vincenzo Mirone
- Department of Neurosciences, Human Reproduction and Odontostomatology, University of Naples, Federico II - Via Pansini 5, 80131, Naples, Italy
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Drobnis EZ, Nangia AK. Cardiovascular/Pulmonary Medications and Male Reproduction. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017; 1034:103-130. [PMID: 29256129 DOI: 10.1007/978-3-319-69535-8_9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Cardiovascular and respiratory medications are used by men of reproductive age although use of the former is most prevalent in advanced age. Many of these drugs have been associated with sexual dysfunction, including erectile and ejaculatory dysfunction, but for most there is insufficient evidence to link their use with testicular dysfunction, reduced semen quality or infertility. Some exceptions are the irreversible α1-adrenergic antagonist phenoxybenzamine, which carries a high risk of retrograde ejaculation; the specific α1A-adrenergic antagonists silodosin and tamsulosin, used primarily to treat BPH/lower urinary tract symptoms, which can cause retrograde ejaculation; and the peripheral β1-adrenergic antagonist atenolol, used to treat hypertension, which may decrease testosterone/free-testosterone levels. In this chapter, we review the evidence available regarding adverse reactions on male reproduction of adrenergic receptor agonists/antagonists, calcium channel blockers, angiotensin converting enzyme (ACE) inhibitors, diuretics, digoxin, and hydralazine. For some of these medications, there is some evidence for male reproductive effects, along with some solid work in experimental and companion animal species suggesting negative effects. In contrast, and of special note, are calcium channel blockers, which have long been included on lists of medications with the potential to cause male infertility. This turns out to be a good example of a substance with profound effects on sperm function in vitro, but with limited evidence for in vivo effects on semen quality or fertility, even in experimental species. We hope that the evidence provided in this chapter will stimulate additional studies for these important classes of medications.
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Affiliation(s)
- Erma Z Drobnis
- Obstetrics, Gynecology and Women's Health, University of Missouri School of Medicine, Columbia, MO, USA
| | - Ajay K Nangia
- Department of Urology, University of Kansas Medical Center, Kansas City, KS, USA
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[S2e guideline of the German urologists: Conservative and pharmacologic treatment of benign prostatic hyperplasia]. Urologe A 2016; 55:184-94. [PMID: 26518303 DOI: 10.1007/s00120-015-3984-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
This report summarizes the relevant aspects of the S2e guideline of the German Urologists for the conservative and pharmacological treatment of lower urinary tract symptoms due to benign prostatic hyperplasia. Recommendations are given regarding watchful waiting, behavioral therapy, phytotherapy and pharmacological mono- and combination therapy. The influence of the different therapeutic options on bladder outlet obstruction (BOO) is described in detail.
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Dahm P, Brasure M, MacDonald R, Olson CM, Nelson VA, Fink HA, Rwabasonga B, Risk MC, Wilt TJ. Comparative Effectiveness of Newer Medications for Lower Urinary Tract Symptoms Attributed to Benign Prostatic Hyperplasia: A Systematic Review and Meta-analysis. Eur Urol 2016; 71:570-581. [PMID: 27717522 DOI: 10.1016/j.eururo.2016.09.032] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Accepted: 09/16/2016] [Indexed: 12/14/2022]
Abstract
CONTEXT Alpha-blockers (ABs) and 5-alpha reductase inhibitors have an established role in treating male lower urinary tract symptoms (LUTS) attributed to benign prostatic hyperplasia (BPH). Recently, newer drugs have shown promise for this indication. OBJECTIVE To assess the comparative effectiveness and adverse effects (AEs) of newer drugs to treat LUTS attributed to BPH through a systematic review and meta-analysis. EVIDENCE ACQUISITION Ovid MEDLINE, the Cochrane Central Register of Controlled Trials, and Ovid Embase bibliographic databases (through June 2016) were hand searches for references of relevant studies. Eligible studies included randomized controlled trials published in English of newer ABs, antimuscarinics, a beta-3 adrenoceptor agonist, phosphodiesterase type-5 inhibitors, or combination therapy with one of these medications as an active comparator. Observational studies of the same agents with a duration ≥1 yr that reported AEs were also included. EVIDENCE SYNTHESIS We synthesized evidence from 43 randomized controlled trials as well as five observational studies. Based on improvement of mean International Prostate Symptom Score and quality of life scores, the effectiveness of the newer ABs was not different from the older ABs (moderate strength of evidence [SOE]), but had more AEs (low SOE). Antimuscarinics/AB combination therapy had similar outcomes as AB monotherapy (all moderate SOE), but often had more AEs. Phosphodiesterase type-5 inhibitors alone or in combination with ABs had similar or inferior outcomes than ABs alone. Evidence was insufficient for the beta-3 adrenoceptor agonist. For all newer agents, the evidence was generally insufficient to assess long-term efficacy, prevention of symptom progression, or AEs. CONCLUSIONS None of the drugs or drug combinations newly used to treat LUTS attributed to BPH showed outcomes superior to traditional AB treatment. Given the lack of superior outcomes, the studies' short time-horizon, and less assurance of their safety, their current value in treating LUTS attributable to BPH appears low. PATIENT SUMMARY In this paper, we reviewed the evidence of newer drugs to treat men with urinary problems attributable to an enlarged prostate. We found none of the new drugs to be better but there was more concern about side effects.
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Affiliation(s)
- Philipp Dahm
- Minneapolis VA Health Care System, Minneapolis, MN, USA.
| | - Michelle Brasure
- Division of Health Policy and Management, University of Minnesota, School of Public Health, Minneapolis, MN, USA
| | | | - Carin M Olson
- Division of Health Policy and Management, University of Minnesota, School of Public Health, Minneapolis, MN, USA
| | - Victoria A Nelson
- Division of Health Policy and Management, University of Minnesota, School of Public Health, Minneapolis, MN, USA
| | - Howard A Fink
- Geriatric Research Education and Clinical Center, Minneapolis Veterans Affairs Healthcare System, Minneapolis, MN, USA
| | - Bruce Rwabasonga
- Division of Health Policy and Management, University of Minnesota, School of Public Health, Minneapolis, MN, USA
| | - Michael C Risk
- Minneapolis VA Health Care System, Minneapolis, MN, USA; Department of Urology, University of Minnesota, Minneapolis, MN, USA
| | - Timothy J Wilt
- Minneapolis Veterans Affairs Healthcare System, Minneapolis, MN, USA; Department of Medicine, University of Minnesota, Minneapolis, MN, USA
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Magaz Martínez M, Relea Pérez L, Suárez Ferrer C, Barrios Peinado C, Abreu García L. [Silodosin: An overlooked cause of drug-induced diarrhea]. GASTROENTEROLOGIA Y HEPATOLOGIA 2016; 39:526-7. [PMID: 26545950 DOI: 10.1016/j.gastrohep.2015.07.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Revised: 07/10/2015] [Accepted: 07/21/2015] [Indexed: 12/15/2022]
Affiliation(s)
- Marta Magaz Martínez
- Servicio de Aparato Digestivo, Hospital Universitario Puerta de Hierro, Majadahonda, Madrid, España.
| | - Lucía Relea Pérez
- Servicio de Aparato Digestivo, Hospital Universitario Puerta de Hierro, Majadahonda, Madrid, España
| | - Cristina Suárez Ferrer
- Servicio de Aparato Digestivo, Hospital Universitario Puerta de Hierro, Majadahonda, Madrid, España
| | - Cesar Barrios Peinado
- Servicio de Aparato Digestivo, Hospital Universitario Puerta de Hierro, Majadahonda, Madrid, España
| | - Luis Abreu García
- Servicio de Aparato Digestivo, Hospital Universitario Puerta de Hierro, Majadahonda, Madrid, España
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Montorsi F, Gandaglia G, Chapple C, Cruz F, Desgrandchamps F, Llorente C. Effectiveness and safety of silodosin in the treatment of lower urinary tract symptoms in patients with benign prostatic hyperplasia: A European phase IV clinical study (SiRE study). Int J Urol 2016; 23:572-9. [PMID: 26969887 DOI: 10.1111/iju.13088] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2015] [Accepted: 02/22/2016] [Indexed: 11/26/2022]
Abstract
OBJECTIVES To assess the benefit-risk balance of silodosin in a real-life setting of benign prostatic hyperplasia patients with lower urinary tract symptoms. METHODS A phase IV trial including men aged ≥60 years with a clinical diagnosis of benign prostatic hyperplasia with an International Prostate Symptom Score ≥12 was carried out. Patients received silodosin 8 mg for 24 weeks. The primary end-point was a decrease ≥25% in the total International Prostate Symptom Score. Secondary end-points were: changes in total, storage and voiding, and quality of life International Prostate Symptom Scores; changes in the International Continence Society-male questionnaire; changes in the frequency/volume chart; and satisfaction according to the Patient Perception of Study Medication questionnaire. Treatment-emergent adverse events were recorded. RESULTS Overall, 1036 patients were enrolled. Of these, 766 patients (77.1%) had a decrease ≥25% in the total International Prostate Symptom Score. The mean total International Prostate Symptom Score, and storage and voiding symptoms subscores decreased from 18.9, 8.1 and 10.8 to 10.6, 4.9 and 5.7. Nocturia decreased from 85.7% to 52.4%. The mean International Prostate Symptom Score quality of life score decreased from 4.0 to 2.2. Half of the patients reported an improvement in the frequency and bothersomeness of the most frequent symptoms reported at baseline (all P < 0.001). A reduction in the number of voids was documented by the frequency/volume chart data. The most common treatment-emergent adverse event was ejaculation failure (185 patients; 17.9%), which led to study discontinuation in 2.4% of patients. Overall, 74.2% of patients were satisfied with the medication. CONCLUSIONS Silodosin improved lower urinary tract symptoms in three out of four patients, including diurnal voiding and storage symptoms, nocturia, and quality of life. This treatment showed a favorable safety profile in this setting.
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Affiliation(s)
- Francesco Montorsi
- Unit of Urology, Division of Oncology, Urological Research Institute, IRCSS Ospedale San Raffaele, Milan, Italy
| | - Giorgio Gandaglia
- Unit of Urology, Division of Oncology, Urological Research Institute, IRCSS Ospedale San Raffaele, Milan, Italy
| | - Christopher Chapple
- Department of Urology, Royal Hallamshire Hospital, Sheffield Teaching Hospital NHS Foundation Trust, Sheffield, UK
| | - Francisco Cruz
- Department of Urology, Hospital de São João, Porto, Portugal.,Department of Renal, Urologic and Infectious Disease, Faculty of Medicine, University of Porto, Porto, Portugal
| | | | - Carlos Llorente
- Urology Service, University Hospital Fundación de Alcorcón, Madrid, Spain
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Yamanishi T, Kaga K, Fuse M, Shibata C, Kamai T, Uchiyama T. Six-year follow up of silodosin monotherapy for the treatment of lower urinary tract symptoms suggestive of benign prostatic hyperplasia: What are the factors for continuation or withdrawal? Int J Urol 2015; 22:1143-8. [DOI: 10.1111/iju.12915] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Accepted: 08/03/2015] [Indexed: 11/28/2022]
Affiliation(s)
- Tomonori Yamanishi
- Department of Urology; Continence Center; Dokkyo Medical University; Tochigi Japan
| | - Kanya Kaga
- Department of Urology; Continence Center; Dokkyo Medical University; Tochigi Japan
| | - Miki Fuse
- Department of Urology; Continence Center; Dokkyo Medical University; Tochigi Japan
| | - Chiharu Shibata
- Department of Urology; Continence Center; Dokkyo Medical University; Tochigi Japan
| | - Takao Kamai
- Department of Urology; Dokkyo Medical University; Tochigi Japan
| | - Tomoyuki Uchiyama
- Department of Neurology; Continence Center; Dokkyo Medical University; Tochigi Japan
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Takeshita H, Moriyama S, Arai Y, Washino S, Saito K, Chiba K, Horiuchi S, Noro A. Randomized Crossover Comparison of the Short-Term Efficacy and Safety of Single Half-Dose Silodosin and Tamsulosin Hydrochoride in Men With Lower Urinary Tract Symptoms Secondary to Benign Prostatic Hyperplasia. Low Urin Tract Symptoms 2015; 8:38-43. [PMID: 26789541 DOI: 10.1111/luts.12106] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2015] [Revised: 04/07/2015] [Accepted: 04/26/2015] [Indexed: 12/22/2022]
Abstract
OBJECTIVE To compare the efficacy and safety of single half-dose silodosin and single full-dose tamsulosin in Japanese men with lower urinary tract symptoms secondary to benign prostatic hyperplasia (LUTS/BPH). METHODS Japanese men aged ≥50 years with LUTS/BPH and an International Prostate Symptom Score (IPSS) of ≥8 were enrolled in the randomized crossover study and divided into silodosin-preceding (S-T) and tamsulosin-preceding (T-S) groups. The S-T group received 4 mg silodosin once daily for 4 weeks followed by 0.2 mg tamsulosin once daily for 4 weeks. The T-S group received the reverse treatment sequence. A washout period prior to drug crossover was not included. Subjective and objective efficacy parameters including IPSS, quality of life (QOL) index, uroflowmetry, and safety were compared between the two groups. RESULTS Thirty of 34 men (S-T group n = 16; T-S group n = 14) completed the study. Both drugs significantly improved all IPSS items and QOL index in the first treatment period. Subjective improvement in nocturia by silodosin was observed in both the first and crossover treatment periods. Objective improvement in maximum flow rate by silodosin was only observed in the first treatment period. Adverse events occurred more frequently with silodosin than with tamsulosin; however, none of the adverse events required treatment discontinuation. Ejaculation disorders occurred in three participants (10%) and were associated with silodosin use. CONCLUSION Single half-dose silodosin has a similar efficacy to full-dose tamsulosin in Japanese men with LUTS/BPH and thus, may represent an effective, safe, and affordable treatment option.
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Affiliation(s)
- Hideki Takeshita
- Department of Urology, Saitama Red Cross Hospital, Saitama, Japan
| | - Shingo Moriyama
- Department of Urology, Saitama Red Cross Hospital, Saitama, Japan
| | - Yoshiaki Arai
- Department of Urology, Nishiohmiya Hospital, Saitama, Japan
| | | | | | - Koji Chiba
- Department of Urology, Saitama Red Cross Hospital, Saitama, Japan
| | - Susumu Horiuchi
- Department of Urology, Shuuwa General Hospital, Saitama, Japan
| | - Akira Noro
- Department of Urology, Saitama Red Cross Hospital, Saitama, Japan
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Novara G, Chapple CR, Montorsi F. Individual patient data from registrational trials of silodosin in the treatment of non-neurogenic male lower urinary tract symptoms (LUTS) associated with benign prostatic hyperplasia (BPH): subgroup analyses of efficacy and safety data. BJU Int 2015; 115:802-14. [DOI: 10.1111/bju.12906] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Giacomo Novara
- Department of Oncological, Surgical, and Gastroenterological Sciences; Urology Clinic; University of Padua; Padua Italy
| | | | - Francesco Montorsi
- Department of Urology; Vita-Salute University; San Raffaele Hospital; Milan Italy
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Open-label, 9-month extension study investigating the uro-selective alpha-blocker silodosin in men with LUTS associated with BPH. World J Urol 2015; 33:697-706. [DOI: 10.1007/s00345-015-1519-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2014] [Accepted: 02/11/2015] [Indexed: 10/23/2022] Open
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16
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The Diagnosis and Treatment of Lower Urinary Tract Symptoms due to Benign Prostatic Hyperplasia with α-Blockers: Focus on Silodosin. Clin Drug Investig 2015; 35 Suppl 1:7-18. [DOI: 10.1007/s40261-014-0257-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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17
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Seki N, Takahashi R, Yamaguchi A, Ito K, Takayama K, Nanri K, Kamiryo Y, Yamashita H, Komine S, Miyazaki Y, Uozumi J, Naito S. Non-inferiority of silodosin 4 mg once daily to twice daily for storage symptoms score evaluated by the International Prostate Symptom Score in Japanese patients with benign prostatic hyperplasia: a multicenter, randomized, parallel-group study. Int J Urol 2015; 22:311-6. [PMID: 25597862 DOI: 10.1111/iju.12680] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2014] [Revised: 10/16/2014] [Accepted: 10/28/2014] [Indexed: 11/27/2022]
Abstract
OBJECTIVES To compare the effect of treatment with silodosin 4 mg once daily versus that of silodosin 4 mg twice daily on storage symptoms in Japanese patients with benign prostatic hyperplasia. METHODS A prospective, multicenter, 12-week, open-labeled study randomized a total of 268 men aged 50 years or older with benign prostatic hyperplasia and overactive bladder to silodosin 4 mg/day or 8 mg/day. Changes in the end-points of the average value of International Prostate Symptom Score, quality of life index in the International Prostate Symptom Score, Overactive Bladder Symptom Score and urodynamic parameters were evaluated. The change in the storage symptom subtotal score of the International Prostate Symptom Score was considered as the primary end-point. RESULTS Silodosin 4 mg/day was not inferior to silodosin 8 mg/day in regard to the primary end-point. In contrast, the efficacy of treatment with silodosin 4 mg twice daily was greater than that of 4 mg once daily, based on both the quality of life index and the Overactive Bladder Symptom Score total score. There was a discrepancy between the scores evaluated using the International Prostate Symptom Score and Overactive Bladder Symptom Score questionnaires. CONCLUSIONS Silodosin 4 mg once daily is not inferior to silodosin 4 mg twice daily in regard to storage symptoms score evaluated by the International Prostate Symptom Score. In contrast, silodosin 4 mg twice daily is more effective on storage symptoms evaluated by the Overactive Bladder Symptom Score than silodosin 4 mg once daily.
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Keating GM. Silodosin: A Review of Its Use in the Treatment of the Signs and Symptoms of Benign Prostatic Hyperplasia. Drugs 2015; 75:207-17. [DOI: 10.1007/s40265-014-0344-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Cho HJ, Yoo TK. Silodosin for the treatment of clinical benign prostatic hyperplasia: safety, efficacy, and patient acceptability. Res Rep Urol 2014; 6:113-9. [PMID: 25328864 PMCID: PMC4199653 DOI: 10.2147/rru.s41618] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
α1-Adrenergic receptor antagonists are commonly used to treat male lower urinary tract symptoms and benign prostatic hyperplasia (BPH). We performed a literature search using PubMed, Medline via Ovid, Embase, and the Cochrane Library databases to identify studies on the treatment of BPH by silodosin. Silodosin is a novel α1-adrenergic receptor antagonist whose affinity for the α1A-adrenergic receptor is greater than that for the α1B-adrenergic receptor. Therefore, silodosin does not increase the incidence of blood pressure-related side effects, which may result from the inhibition of the α1B-adrenergic receptor. Patients receiving silodosin at a daily dose of 8 mg showed a significant improvement in the International Prostate Symptom Score and maximum urinary flow rate compared with those receiving a placebo. Silodosin also improved both storage and voiding symptoms, indicating that silodosin is effective, even during early phases of BPH treatment. Follow-up extension studies performed in the United States, Europe, and Asia demonstrated its long-term safety and efficacy. In the European study, silodosin significantly reduced nocturia compared to the placebo. Although retrograde or abnormal ejaculation was the most commonly reported symptom in these studies, only a few patients discontinued treatment. The incidence of adverse cardiovascular events was also very low. Evidence showing solid efficacy and cardiovascular safety profiles of silodosin will provide a good solution for the treatment of lower urinary tract symptoms associated with BPH in an increasingly aging society.
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Affiliation(s)
- Hee Ju Cho
- Department of Urology, Eulji Hospital, Eulji University School of Medicine, Seoul, Korea
| | - Tag Keun Yoo
- Department of Urology, Eulji Hospital, Eulji University School of Medicine, Seoul, Korea
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Castro-Díaz D, Callejo D, Cortés X, Pérez M. Study of quality of life in patients with benign prostatic hyperplasia under treatment with silodosin. Actas Urol Esp 2014; 38:361-6. [PMID: 24274903 DOI: 10.1016/j.acuro.2013.10.002] [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] [Received: 07/18/2013] [Revised: 10/01/2013] [Accepted: 10/11/2013] [Indexed: 11/25/2022]
Abstract
OBJECTIVES To assess the impact of urinary symptoms associated with benign prostatic hyperplasia and its treatment with silodosin, on quality of life (QoL) and sexual function, depending on age, severity of symptoms, time on treatment and prostate size. MATERIAL AND METHODS A cross-sectional, observational study was conducted in 305 urology practices all around Spain. Socio-demographic and clinical data were collected and patients filled the following questionnaires: EQ-5D, Sexual Function Index (SFI) and International Prostate Symptom Score (IPSS). Multiple regression models were used to determine factors independently associated with patients' QoL. RESULTS A total of 1,019 patients were enrolled, mean (SD) for: age 62.7 (5.7), EQ-5D 89.9 (13.9), sexual drive-SFI 3.71 (1.67), erection-SFI 6.11 (3.08), ejaculation-SFI 4.50 (2.06) problems-SFI 6.85 (3.37) and overall satisfaction-SFI 2.00 (0.99). The EQ-5D and SFI score were statistically lower with: older age, severe LUTS and greater prostate size (P<.01), but no differences were found related to time on treatment with silodosin. The EQ-5D score was positively associated with sexual satisfaction and desire size of SFI and the EQ-5D VAS score, and negatively with disability, semi-urban residence and comorbidities in the multiple regression analyses. CONCLUSIONS Severe LUTS and older age are associated to a greater deterioration in sexual function and quality of life. However time on treatment with silodosin does not produce deterioration in the quality of life.
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Moon KH, Song PH, Yang DY, Park NC, Kim SW, Lee SW, Kim SW, Moon DG, Park JK, Ahn TY, Park K. Efficacy and Safety of the Selective α1A-Adrenoceptor Blocker Silodosin for Severe Lower Urinary Tract Symptoms Associated With Benign Prostatic Hyperplasia: A Prospective, Single-Open-Label, Multicenter Study in Korea. Korean J Urol 2014; 55:335-40. [PMID: 24868338 PMCID: PMC4026660 DOI: 10.4111/kju.2014.55.5.335] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2013] [Accepted: 03/18/2014] [Indexed: 11/20/2022] Open
Abstract
Purpose To evaluate the efficacy and safety of silodosin 8 mg once daily in a 12-week treatment of subjects with severe lower urinary tract symptoms (LUTS) associated with benign prostatic hyperplasia (BPH). Materials and Methods A total of 100 subjects from 10 urology centers in Korea were included in this study. The inclusion criteria were as follows: age ≥50 years, International Prostate Symptom Score (IPSS) ≥20, quality of life (QoL) score ≥3, urine volume ≥120 mL and maximal urinary flow rate (Qmax) <15 mL/s, and postvoid residual volume (PVR) <100 mL. We assessed the improvement of LUTS with change in IPSS, QoL score, Qmax, PVR, and adverse events at baseline and 4 and 12 weeks after treatment with silodosin 8 mg once daily. Results The IPSS values were 23.27±3.34, 15.89±6.26, and 13.80±6.31 at baseline, 4, and 12 weeks, respectively, with significant improvements (p<0.0001, p=0.0214, respectively). QoL scores were 4.44±0.85, 3.38±1.20, and 3.04±1.20 at baseline, 4, and 12 weeks, respectively, and the differences were statistically significant (p<0.0001). There was a significant difference in Qmax between baseline and 12 weeks (p<0.0001) but not in PVR (p=0.9404) during the clinical trial. The most frequent adverse event in this study was ejaculation failure with 13 cases. However, no subject dropped out because of ejaculation failure, and in 12 of the 13 cases it was fully resolved without further treatment. Conclusions Silodosin 8 mg once daily may be effective and safe in Korean patients with severe LUTS associated with BPH.
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Affiliation(s)
- Ki Hak Moon
- Department of Urology, Yeungnam University Hospital, Daegu, Korea
| | - Phil Hyun Song
- Department of Urology, Yeungnam University Hospital, Daegu, Korea
| | - Dae Yul Yang
- Department of Urology, Hallym University Medical Center, Seoul, Korea
| | - Nam Cheol Park
- Department of Urology, Pusan National University Hospital, Busan, Korea
| | - Soo Woong Kim
- Department of Urology, Seoul National University Hospital, Seoul, Korea
| | - Sung Won Lee
- Department of Urology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Sae Woong Kim
- Department of Urology, Seoul St. Mary's Hospital, Seoul, Korea
| | - Du Geon Moon
- Department of Urology, Korea University Guro Hospital, Seoul, Korea
| | - Jong Kwan Park
- Department of Urology, Chonbuk National University Medical School, Institute for Medical Sciences, Chonbuk National University and Biomedical Research Institute and Clinical Trial Center of Medical Device of Chonbuk National University Hospital, Jeonju, Korea
| | - Tai Young Ahn
- Department of Urology, Asan Medical Center, Seoul, Korea
| | - Kwangsung Park
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
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Novara G, Chapple CR, Montorsi F. A pooled analysis of individual patient data from registrational trials of silodosin in the treatment of non-neurogenic male lower urinary tract symptoms (LUTS) suggestive of benign prostatic hyperplasia (BPH). BJU Int 2014; 114:427-33. [PMID: 24571313 DOI: 10.1111/bju.12712] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
OBJECTIVE To evaluate the efficacy and safety of silodosin in a pooled analysis based on individual patients data from three randomised controlled trials (RCTs) comparing silodosin and placebo. PATIENTS AND METHODS A pooled analysis of 1494 patients from three 12-week, similarly designed, parallel-group, multicentre, randomised, double-blind, placebo-controlled phase III RCTs (SI04009, SI04010, KMD3213-IT-CL 0215) was performed. Differences from placebo for the mean change from baseline to the end of treatment for the International Prostate Symptom Score (IPSS) and uroflowmetry data were tested using an analysis of covariance model. RESULTS At study end, in the intention-to-treat population, silodosin was significantly more effective than placebo in improving IPSS total score (adjusted means differences [AMD] 2.7; P < 0.001). Silodosin was significantly more effective than placebo in improving storage, voiding, and quality-of-life-item subscores (all P < 0.001). Similarly, silodosin was more effective than placebo in improving maximum urinary flow rate (Qmax ; AMD 0.8; P = 0.002). The most frequently reported adverse event (AE) was ejaculatory dysfunction, reported in 186 (22%) patients in the silodosin group and six (0.9%) in the placebo group (odds ratio 28.14; P < 0.001). Dizziness and orthostatic hypotension rates were similar in silodosin and placebo groups. CONCLUSIONS Silodosin is an effective treatment for male lower urinary tract symptoms suggestive of benign prostatic hyperplasia. The drug is able to improve total IPSS, all IPSS-related parameters, and Qmax at uroflowmetry. Ejaculatory dysfunction is the main treatment-related AE, whereas prevalence of cardiovascular AEs was similar to placebo.
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Affiliation(s)
- Giacomo Novara
- Department of Oncological, Surgical, and Gastroenterological Sciences, Urology Clinic, University of Padua, Padua, Italy
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Game X, Cornu JN, Robert G, Descazeaud A, Droupy S, Benard-Laribiere A, Bastide C, Guy L, Bruyére F, Karsenty G. [Drug therapy of urethral diseases]. Prog Urol 2013; 23:1287-98. [PMID: 24183087 DOI: 10.1016/j.purol.2013.09.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2013] [Accepted: 09/16/2013] [Indexed: 02/02/2023]
Abstract
AIM To describe drugs targeting urethra and prostate to treat dysfunctions such LUTS related to BPH, primary bladder neck obstruction (PBNO), detrusor sphincter dyssynergia (DSD) or sphincter deficiency (SD). METHOD Pubmed search for efficacy, mode of action and side effects for each molecule. Additional data were searched from the French regulatory agencies web sites (HAS and ANSM). RESULTS To treat LUTS related to BPH alpha-blockers (AB) and 5-alpha reductase inhibitors (5ARIs) have a clearer efficacy than plant extract. Daily Phosphodiesterase 5 inhibitors (PDE5Is) alone or in association with AB also demonstrate efficacy in this indication. AB are an option in PBNO and DSD related to multiple sclerosis. Although Botulinum toxin A derived molecules decrease urethral pressure in patient with DSD related to spinal cord injury or multiple sclerosis, efficiency remains to be demonstrated. Duloxetine a serotonin reuptake inhibitor increases urethral sphincter pressure and reduce stress urinary incontinence in women and men. Nevertheless, moderate efficacy combine with frequent side effects lead French regulation agency to reject its agreement. CONCLUSION Armamenterium to treat urethral dysfunctions has recently increases. Two new therapeutic classes emerge: PDE5Is to treat LUTS related to BPH and an SRIs (Duloxetine) to treat stress urinary incontinence. Efficacy and safety evaluation of all the possible associations between drugs targeting urethra and/or bladder is needed to a subtler and more efficient pharmacologic modulation of lower urinary tract dysfunction.
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Affiliation(s)
- X Game
- Département d'urologie, transplantation rénale et andrologie, CHU Rangueil, TSA 50032, 31059 Toulouse, France
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Seyam R. A systematic review of the correlates and management of nonpremature ejaculatory dysfunction in heterosexual men. Ther Adv Urol 2013; 5:254-97. [PMID: 24082920 DOI: 10.1177/1756287213497231] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
INTRODUCTION A better understanding of ejaculatory disorders has led to an increasing interest in nonpremature ejaculatory dysfunction (non-PE EjD). Current reviews on the subject use a symptom-based classification to describe ejaculatory dysfunction even when it is a single case report. While these reviews provide important information on the disorder, a clearer picture of the prevalence of non-PE EjD in relation to the community and various pathophysiologic states is needed. OBJECTIVES The objective of this study was to provide a systematic review of studies of non-PE EjD excluding single case reports. METHODS A systematic review of Medline for terms including ejaculation, orgasm or hematospermia. Association with terms delay, pain or headache was made. The search was restricted to male gender and articles written in English. Abstracts were reviewed and those mainly concerned with premature ejaculation were excluded. RESULTS A total of 333 articles on non-PE EjD were identified. The condition was reported in community-based studies. In certain patient populations, non-PE EjD was commonly reported in association with antidepressant and antipsychotic treatments, in patients with chronic prostatitis/chronic pelvic pain syndrome, patients with lower urinary tract symptoms particularly in association with medical or surgical treatment, patients with retroperitoneal surgery and in patients with neurological diseases. Few articles were concerned with treatment options. CONCLUSION There is a significant prevalence of non-PE EjD in the community and in association with particular disease states or as a side effect of medical or surgical interventions. There is a need to direct efforts to prevent and treat these conditions.
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Affiliation(s)
- Raouf Seyam
- King Faisal Specialist Hospital and Research Center, PO Box 3354, MBC 83, Riyadh 11211, Saudi Arabia
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Spatafora S, Casarico A, Fandella A, Galetti C, Hurle R, Mazzini E, Niro C, Perachino M, Sanseverino R, Pappagallo GL. Evidence-based guidelines for the treatment of lower urinary tract symptoms related to uncomplicated benign prostatic hyperplasia in Italy: updated summary from AURO.it. Ther Adv Urol 2013. [PMID: 23205056 DOI: 10.1177/1756287212463112] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND The first Italian national guidelines were developed by the Italian Association of Urologists and published in 2007. Since then, a number of new drugs or classes of drugs have emerged for the treatment of lower urinary tract symptoms (LUTS) related to benign prostatic hyperplasia (BPH), new data have emerged on medical therapy (monotherapies and combination therapies), new surgical techniques have come into practice, and our understanding of disease pathogenesis has increased. Consequently, a new update of the guidelines has become necessary. METHODS A structured literature review was conducted to identify relevant papers published between 1 August 2006 and 12 December 2010. Publications before or after this timeframe were considered only if they were recognised as important milestones in the field or if the literature search did not identify publications within this timeframe. The quality of evidence and strength of recommendations were determined according to the Grading of Recommendations Assessment, Development and Evaluation framework. MAIN FINDINGS Decisions on therapeutic intervention should be based on the impact of symptoms on quality of life (QoL) rather than the severity of symptoms (International Prostate Symptom Score (IPSS) score). A threshold for intervention was therefore based on the IPSS Q8, with intervention recommended for patients with a score of at least 4. Several differences in clinical recommendations have emerged. For example, combination therapy with a 5α-reductase inhibitor plus α blocker is now the recommended option for the treatment of patients at risk of BPH progression. Other differences include the warning of potential worsening of cognitive disturbances with use of anticholinergics in older patients, the distinction between Serenoa repens preparations (according to the method of extraction), and the clearly defined threshold of prostate size for performing open surgery (>80 g). While the recommendations included in these guidelines are evidence based, clinical decisions should also be informed by patients' clinical and physical circumstances, as well as patients' preferences and actions. CONCLUSIONS These guidelines are intended to assist physicians and patients in the decision-making process regarding the management of LUTS/BPH, and support the process of continuous improvement of the quality of care and services to patients.
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Affiliation(s)
- Sebastiano Spatafora
- Department of Surgery, Azienda Ospedaliera S. Maria Nuova, viale Risorgimento 80, 42100 Reggio Emilia, Italy
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Hernández Fernández C, Brenes Bermúdez F, Moncada Iribarren I. [Update of the usefulness of α-blockers in the treatment of different urologic pathologies]. Med Clin (Barc) 2012; 139:582-7. [PMID: 22982131 DOI: 10.1016/j.medcli.2012.06.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2012] [Revised: 06/24/2012] [Accepted: 06/28/2012] [Indexed: 12/28/2022]
Abstract
OBJECTIVE To review the role of α-blockers in various urological conditions such as benign prostatic hyperplasia, overactive bladder, chronic prostatitis, and erectile dysfunction and as expulsive treatment of distal ureteral stones. MATERIAL AND METHODS We reviewed the latest scientific evidence in all the fields mentioned above, performing a critical analysis. CONCLUSION α-blockers are now considered first-line treatment in lower urinary tract symptoms secondary to benign prostatic hyperplasia, but the indications go beyond, and are able to improve, alone or in combination with other drugs, the previously mentioned pathologies. The uroselective properties of some α-blockers make them a highly safe medication.
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Novara G, Tubaro A, Sanseverino R, Spatafora S, Artibani W, Zattoni F, Montorsi F, Chapple CR. Systematic review and meta-analysis of randomized controlled trials evaluating silodosin in the treatment of non-neurogenic male lower urinary tract symptoms suggestive of benign prostatic enlargement. World J Urol 2012; 31:997-1008. [DOI: 10.1007/s00345-012-0944-8] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2012] [Accepted: 09/03/2012] [Indexed: 12/01/2022] Open
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Osman NI, Chapple CR, Cruz F, Desgrandchamps F, Llorente C, Montorsi F. Silodosin: a new subtype selective alpha-1 antagonist for the treatment of lower urinary tract symptoms in patients with benign prostatic hyperplasia. Expert Opin Pharmacother 2012; 13:2085-96. [DOI: 10.1517/14656566.2012.714368] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Cui Y, Zong H, Zhang Y. The efficacy and safety of silodosin in treating BPH: a systematic review and meta-analysis. Int Urol Nephrol 2012; 44:1601-9. [PMID: 22914879 DOI: 10.1007/s11255-012-0261-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2012] [Accepted: 08/03/2012] [Indexed: 10/28/2022]
Abstract
PURPOSE Pharmacological therapy is typically the first-line treatment for patients with benign prostatic hyperplasia (BPH). We carried out a systematic review and meta-analysis to assess the efficacy and safety of silodosin for treating BPH. METHODS A literature review was performed to identify all published randomized placebo-controlled trials (RCT) of silodosin for the treatment of BPH. The search included the following databases: PUBMED, EMBASE, and the Cochrane Controlled Trail Register of Controlled Trials. The reference lists of retrieved studies were also investigated. A systematic review and meta-analysis were conducted. RESULTS Four publications involving a total of 2,543 patients were used in the analysis, including 3 RCTs that compared silodosin with placebo and 3 RCTs that compared silodosin with tamsulosin. We found that silodosin was effective in treating BPH in our meta-analysis. Total international prostate symptom score (IPSS) (P=0.92 SWD=2.92 95% CI=2.19-3.65 the mean decrease of total IPSS was from 6.4 to 10.6), voiding symptom score, storage symptom score, and quality-of-life score indicated that silodosin was more effective than the placebo. Silodosin's efficacy is similar to that of tamsulosin (P=0.37 SWD=1.14 95% CI=0.18-2.11) in our meta-analysis. However, the incidence of abnormal ejaculation was higher in patients treated with tamsulosin therapy compared with the placebo (234/1128=20.74% 12/680=1.76% 6/736=0.82%). CONCLUSIONS This meta-analysis proves silodosin to be an effective and safe treatment for the relief of lower urinary tract symptom associated with BPH. Silodosin and tamsulosin were similar in terms of efficacy. The major adverse event associated with silodosin treatment was abnormal ejaculation.
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Affiliation(s)
- Yuanshan Cui
- Department of Urology, Beijing Tian-Tan Hospital, Capital Medical University, No. 6 Tiantan Xi Li, Dongcheng District, Beijing, 100050, China
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Keating GM, Curran MP. Silodosin: a guide to its use in benign prostatic hyperplasia. DRUGS & THERAPY PERSPECTIVES 2012. [DOI: 10.2165/11606250-000000000-00000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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Yoshida M, Kudoh J, Homma Y, Kawabe K. New clinical evidence of silodosin, an α1A selective adrenoceptor antagonist, in the treatment for lower urinary tract symptoms. Int J Urol 2012; 19:306-16. [DOI: 10.1111/j.1442-2042.2011.02957.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Russo A, Hedlund P, Montorsi F. Silodosin From Bench to Bedside: Selectivity, Safety, and Sustained Efficacy. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/j.eursup.2011.08.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Curran MP. Silodosin in the Treatment of the Signs and Symptoms of Benign Prostatic Hyperplasia†. Drugs Aging 2011; 28:843-5. [DOI: 10.2165/11207800-000000000-00000] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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Yoshida M, Kudoh J, Homma Y, Kawabe K. Safety and efficacy of silodosin for the treatment of benign prostatic hyperplasia. Clin Interv Aging 2011; 6:161-72. [PMID: 21753871 PMCID: PMC3131986 DOI: 10.2147/cia.s13803] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2011] [Indexed: 11/23/2022] Open
Abstract
Lower urinary tract symptoms (LUTS) associated with benign prostatic hyperplasia (BPH) are highly prevalent in older men. Medical therapy is the first-line treatment for LUTS associated with BPH. Mainstays in the treatment of male LUTS and clinical BPH are the α(1)-adrenergic receptor antagonists. Silodosin is a new α(1)-adrenergic receptor antagonist that is selective for the α(1A)-adrenergic receptor. By antagonizing α(1A)-adrenergic receptors in the prostate and urethra, silodosin causes smooth muscle relaxation in the lower urinary tract. Since silodosin has greater affinity for the α(1A)-adrenergic receptor than for the α(1B)-adrenergic receptor, it minimizes the propensity for blood pressure-related adverse effects caused by α(1B)-adrenergic receptor blockade. In the clinical studies, patients receiving silodosin at a total daily dose of 8 mg exhibited significant improvements in the International Prostate Symptom Score and maximum urinary flow rate compared with those receiving placebo. Silodosin showed early onset of efficacy for both voiding and storage symptoms. Furthermore, long-term safety of silodosin was also demonstrated. Retrograde or abnormal ejaculation was the most commonly reported adverse effect. The incidence of orthostatic hypotension was low. In conclusion, silodosin, a novel selective α(1A)-adrenergic receptor antagonist, was effective in general and without obtrusive side effects. This review provides clear evidence in support of the clinical usefulness of silodosin in the treatment of LUTS associated with BPH.
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Affiliation(s)
- Masaki Yoshida
- Department of Medical Informatics, University of Tokyo, Japan.
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Kaplan SA, Roehrborn CG, Hill LA, Volinn W. Effect of estimated prostate volume on silodosin-mediated improvements in the signs and symptoms of BPH: does prostate size matter? Open Access J Urol 2011; 3:89-93. [PMID: 24198640 PMCID: PMC3818948 DOI: 10.2147/oaju.s18941] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
OBJECTIVE The uroselective α-blocker silodosin significantly improved International Prostate Symptom Score (IPSS) in two 12-week, double-blind (DB), placebo-controlled Phase III studies in men aged ≥ 50 years with symptoms of benign prostatic hyperplasia (BPH) and maintained symptom improvement during a 9-month open-label (OL) extension. This post-hoc analysis evaluated the effects of estimated prostate volume (EPV) on silodosin-mediated symptom improvement. METHODS Patients were stratified by EPV (<30 mL or ≥ 30 mL) calculated from prostate-specific antigen (PSA) concentrations using a published algorithm. Group comparisons were done by analysis of covariance with last observations carried forward. RESULTS Of 890 patients with PSA baseline data, 192 had EPV < 30 mL and 698 had EPV ≥ 30 mL. During DB treatment, silodosin was associated with significant symptom improvement (adjusted mean difference versus placebo) in men with EPV < 30 mL (-2.0; P = 0.038) and those with EPV ≥ 30 mL (-3.0; P < 0.0001). Among patients who received silodosin during DB treatment, changes from baseline in IPSS to the end of OL extension (mean ± standard deviation) were similar for EPV < 30 mL (n = 60, -7.0 ± 6.8) and EPV ≥ 30 mL (n = 242, -8.0 ± 7.1; P = 0.416). Also, among patients who received placebo as DB treatment, symptom improvement at the end of OL extension was similar for EPV < 30 mL (n = 62, -6.2 ± 8.1) and EPV ≥ 30 mL (n = 275, -6.7 ± 6.1; P = 0.339). CONCLUSION Silodosin effectively relieved BPH-related symptoms for up to 12 months, irrespective of prostate size, including in patients with enlarged prostates.
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Affiliation(s)
- Steven A Kaplan
- Weill college of Medicine Cornell University, New York, NY, USA
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Yu HJ, Lin ATL, Yang SSD, Tsui KH, Wu HC, Cheng CL, Cheng HL, Wu TT, Chiang PH. Non-inferiority of silodosin to tamsulosin in treating patients with lower urinary tract symptoms (LUTS) associated with benign prostatic hyperplasia (BPH). BJU Int 2011; 108:1843-8. [PMID: 21592295 DOI: 10.1111/j.1464-410x.2011.10233.x] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
UNLABELLED What's known on the subject? and What does the study add? Silodosin administered by 4 mg twice daily is as effective as tamsulosin 0.2 mg daily in treating patients with LUTS associated with BPH. Relative to tamsulosin, silodosin has less cardiovascular side effects as judged by the minimal changes of blood pressure and pulse rats after treatment. OBJECTIVE • To test the hypothesis that the efficacy of silodosin would not be inferior to tamsulosin in treating patients with lower urinary tract symptoms associated with benign prostate hyperplasia (BPH). PATIENTS AND METHODS • At nine medical centres, 209 patients with an International Prostate Symptom Score (IPSS) of ≥13 were randomized to silodosin (4 mg twice daily) or tamsulosin (0.2 mg once daily) for 12 weeks. • The primary efficacy measure was the mean change from baseline to endpoint in IPSS. • The non-inferiority margin of the IPSS change was set at 1.0. • Secondary efficacy measures included change in maximal urinary flow rate (Q(max)) and health-related quality of life (HRQL) score. RESULTS • Of the 170 (81.3%) patients who completed the study, 86.2% in the silodosin group vs 81.9% in the tamsulosin group achieved a ≥25% decrease in IPSS (P= 0.53). • The mean difference (silodosin minus tamsulosin) in IPSS change from baseline was -0.60 (95% confidence interval -2.15, 0.95), inferring the non-inferiority of silodosin to tamsulosin. • The mean changes in the Q(max) and HRQL score from baseline were comparable between the groups (both, P > 0.05). Although patients receiving silodosin had a significantly higher incidence of abnormal ejaculation (9.7% vs tamsulosin 1.0%, P= 0.009), only 1.9% discontinued treatment. • Tamsulosin treatment resulted in a significant reduction in mean systolic blood pressure (-4.2 mmHg, within-group P= 0.004) relative to the negligible change of silodosin (-0.1 mmHg, within-group P= 0.96) CONCLUSION • The trial shows the non-inferiority of silodosin 4 mg twice daily to tamsulosin 0.2 mg once daily in patients with symptoms of BPH.
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Affiliation(s)
- Hong-Jeng Yu
- Department of Urology, National Taiwan University Hospital, Taipei, Taiwan.
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Nickel JC, O'Leary MP, Lepor H, Caramelli KE, Thomas H, Hill LA, Hoel GE. Silodosin for men with chronic prostatitis/chronic pelvic pain syndrome: results of a phase II multicenter, double-blind, placebo controlled study. J Urol 2011; 186:125-31. [PMID: 21571345 DOI: 10.1016/j.juro.2011.03.028] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2010] [Indexed: 12/16/2022]
Abstract
PURPOSE We evaluated the efficacy and safety of 2 doses of silodosin vs placebo in men with moderate to severe abacterial chronic prostatitis/chronic pelvic pain syndrome who had not been treated previously with α-blockers for chronic prostatitis/chronic pelvic pain syndrome. MATERIALS AND METHODS In this multicenter, randomized, double-blind, phase II study, men 18 years old or older with chronic prostatitis/chronic pelvic pain syndrome, a total National Institutes of Health Chronic Prostatitis Symptom Index score of 15 or greater and a National Institutes of Health Chronic Prostatitis Symptom Index pain score of 8 or greater received 4 or 8 mg silodosin, or placebo once daily for 12 weeks. The primary efficacy end point was change from baseline to week 12 in National Institutes of Health Chronic Prostatitis Symptom Index total score. RESULTS Of 151 patients (mean age 48 years) 52 received 4 mg silodosin, 45 received 8 mg silodosin and 54 received placebo. Silodosin 4 mg was associated with a significant decrease in total National Institutes of Health Chronic Prostatitis Symptom Index score (mean ± SD change -12.1 ± 9.3) vs placebo (-8.5 ± 7.2, p = 0.0224), including a decrease in urinary symptom (-2.2 ± 2.7, placebo -1.3 ± 3.0, p = 0.0102) and quality of life (-4.1 ± 3.1, placebo -2.7 ± 2.5, p = 0.0099) subscores. The 4 mg dose of silodosin also significantly increased Medical Outcomes Study Short Form 12 physical component scores (4.2 ± 8.1, placebo 1.7 ± 9.0, p = 0.0492). During global response assessment 56% of patients receiving 4 mg silodosin vs 29% receiving placebo reported moderate or marked improvement (p = 0.0069). Increasing the dose of silodosin to 8 mg resulted in no incremental treatment effects. CONCLUSIONS Silodosin 4 mg relieved symptoms and improved quality of life in men with chronic prostatitis/chronic pelvic pain syndrome but its efficacy requires confirmation in additional studies.
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Chapple CR, Montorsi F, Tammela TL, Wirth M, Koldewijn E, Fernández Fernández E. Silodosin Therapy for Lower Urinary Tract Symptoms in Men with Suspected Benign Prostatic Hyperplasia: Results of an International, Randomized, Double-Blind, Placebo- and Active-Controlled Clinical Trial Performed in Europe. Eur Urol 2011; 59:342-52. [DOI: 10.1016/j.eururo.2010.10.046] [Citation(s) in RCA: 163] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2010] [Accepted: 10/31/2010] [Indexed: 10/18/2022]
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Donatucci CF, Brock GB, Goldfischer ER, Pommerville PJ, Elion-Mboussa A, Kissel JD, Viktrup L. Tadalafil administered once daily for lower urinary tract symptoms secondary to benign prostatic hyperplasia: a 1-year, open-label extension study. BJU Int 2011; 107:1110-6. [PMID: 21244606 DOI: 10.1111/j.1464-410x.2010.09687.x] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
OBJECTIVE • To evaluate the 1-year safety of 5 mg of tadalafil once daily in men with lower urinary tract symptoms secondary to benign prostatic hyperplasia (BPH-LUTS); efficacy measures were included to evaluate the maintenance of efficacy after an additional year of treatment. PATIENTS AND METHODS • In total, 427 men who completed a 12-week, placebo-controlled, dose- finding study assessing once-daily tadalafil (2.5, 5, 10 or 20 mg) or placebo elected to continue into the open-label extension period. Safety and efficacy parameters were assessed after 1 month and every 3 months. RESULTS • In total, 299 patients (69.9%) completed the 1-year, open-label extension period. Treatment-emergent adverse events (TEAEs) were reported by 57.6% of patients, with most TEAEs being mild (44%) or moderate (45%) in severity; the most common TEAEs (≥ 2%) were dyspepsia, gastro-oesophageal reflux disease, back pain, headache, sinusitis, hypertension and cough. Twenty-two patients (5.2%) discontinued as a result of AEs. During the open-label extension period, mean prostate-specific antigen increased from 1.6 ± 1.3 ng/mL to 1.8 ± 1.4 ng/mL. • Mean post-void residual volume was 61.1 ± 60.4 mL at study entry and 42.2 ± 64.1 mL after the open-label extension period. Changes in the total International Prostate Symptom Score (IPSS), IPSS irritative and obstructive subscores, IPSS health-related quality of life and BPH Impact Index were maintained after 1 year. In sexually-active patients with erectile dysfunction, improvements in the International Index of Erectile Function-Erectile Function domain were maintained after 1 year. CONCLUSION • In men with BPH-LUTS, 5 mg of tadalafil once daily during 1 year of treatment was well tolerated and efficacy changes were maintained.
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Affiliation(s)
- Craig F Donatucci
- Department of Surgery, Division of Urology, Duke University, Durham, NC, USA
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Abstract
α(1)-Adrenoceptors have been identified and characterized extensively by functional, radioligand-binding, and molecular biological techniques. Molecular clones have been isolated for three α(1)-subtypes (α(1a), α(1b), and α(1d)), and these subtypes are also functionally characterized. α(1)-Adrenoceptors are present in the prostate, urethra, bladder (urothelium, smooth muscle, and afferent nerves), ureter, vas deferens, peripheral ganglia, nerve terminals, vascular tissues, and central nervous system (CNS), and they could all potentially influence overall urinary function and contribute to both the therapeutic and adverse effects of α(1)-adrenoceptor antagonists in patients with benign prostatic hyperplasia (BPH) and lower urinary tract symptoms (LUTS). This review aimed to discuss the relevant physiological and pharmacological roles and molecular biology of α(1)-adrenoceptor subtypes in the prostate, urethra, bladder, ureter, and CNS.
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Morgia G. Does the use of silodosin to treat benign prostatic hyperplasia really offer something new? Eur Urol 2010; 59:353-5; discussion 355. [PMID: 21130562 DOI: 10.1016/j.eururo.2010.11.023] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2010] [Accepted: 11/16/2010] [Indexed: 11/15/2022]
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Current world literature. Curr Opin Urol 2010; 21:84-91. [PMID: 21127406 DOI: 10.1097/mou.0b013e328341a1a3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Lepor H, Hill LA. Silodosin for the Treatment of Benign Prostatic Hyperplasia: Pharmacology and Cardiovascular Tolerability. Pharmacotherapy 2010; 30:1303-12. [DOI: 10.1592/phco.30.12.1303] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Abstract
Benign prostatic hyperplasia (BPH)-associated lower urinary tract symptoms (LUTS) are highly prevalent in older men. Medical therapy is the first-line treatment for LUTS due to BPH. Alpha-adrenergic receptor blockers remain one of the mainstays in the treatment of male LUTS and clinical BPH. They exhibit early onset of efficacy with regard to both symptoms and flow rate improvement, and this is clearly demonstrated in placebo-controlled trials with extensions out to five years. These agents have been shown to prevent symptomatic progression of the disease. The aim of this article is to offer a critical review of the current literature on silodosin, formerly known as KMD-3213, a novel alpha-blocker with unprecedented selectivity for α(1A)-adrenergic receptors, as compared with both α(1B)- and α(1D) -adrenoceptors, exceeding the selectivity of all currently used α(1)-blockers, and with clinically promising effects.
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Affiliation(s)
- Maxime Rossi
- Department of Urology, Erasme Hospital, University Clinics of Brussels, ULB, Brussels, Belgium
| | - Thierry Roumeguère
- Department of Urology, Erasme Hospital, University Clinics of Brussels, ULB, Brussels, Belgium
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Gittelman MC, Marks LS, Hill LA, Volinn W, Hoel G. Effect of silodosin on specific urinary symptoms associated with benign prostatic hyperplasia: analysis of international prostate symptom scores in 2 phase III clinical studies. Open Access J Urol 2010; 3:1-5. [PMID: 24198629 PMCID: PMC3818930 DOI: 10.2147/oaju.s15333] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
PURPOSE Pooled results from 2 randomized, placebo-controlled, US phase III studies (NCT00224107, NCT00224120) showed that silodosin, a uroselective α-blocker, significantly improved International Prostate Symptom Scores (IPSS) in men with symptomatic benign prostatic hyperplasia (BPH). This analysis evaluated the effect of silodosin on each symptom assessed by IPSS questionnaire. MATERIALS AND METHODS Study participants (N = 923) were men aged ≥50 years with IPSS ≥13 and Qmax 4-15 mL/s. They received silodosin 8 mg or placebo once daily for 12 weeks. Patient responses to 7 IPSS questions were collected at weeks 0 (baseline), 0.5, 1, 2, 4, and 12 and scored on a 6-point scale. Efficacy of silodosin versus placebo was assessed by analysis of covariance. RESULTS For each symptom, the 2 treatment groups had similar mean baseline scores. Decrease in score from baseline (mean ± standard deviation) to last observation was significantly greater with silodosin than with placebo for all symptoms (P < 0.005); symptom improvement with silodosin (versus placebo) was greatest for weak stream (silodosin, -1.1 ± 1.4 versus placebo, -0.5 ± 1.2; P < 0.0001) and smallest for nocturia (silodosin, -0.6 ± 1.1 versus placebo, -0.4 ± 1.2; P = 0.0037). Compared with placebo, silodosin significantly improved nocturia within 1 week (silodosin, -0.5 ± 1.07 versus placebo, -0.3 ± 1.05; P = 0.009) and all other symptoms within 3 to 4 days (P < 0.01). CONCLUSIONS Silodosin significantly improved all BPH-associated symptoms assessed by IPSS questionnaire within the first week of treatment. All improvements were maintained over the 12-week study period.
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