The Effects of α-adrenergic Receptor Antagonists on Choroid and Pupil
Summary
It was aimed to evaluate and investigate the effects of tamsulosin hydrochloride, has preferential selectivity for the α1A receptor in the prostat versus the α1B receptor in the blood vessels, and alfuzosin hydrochloride on choroidal thickness (CT), pupil diameter sizes evaluated by using enhanced depth imaging spectral-domain optical coherence tomography (EDI-OCT) and scheimpflug/placido photography-based topoghraphy system in this study. 63 men patients with newly diagnosis of benign prostatic hyperplasia were randomly assigned to either alfuzosin hydrochloride or to tamsulosin hydrochloride groups in this prospective, randomized, parallel-group clinical trial. Enhanced depth imaging spectral-domain optical coherence tomography, pupillography were obtained at baseline, 1st and 3rd month, and choroidal thicknesses and pupil diameter sizes were compared between the 2 groups.
Timeline
- Start
- 2015-10-29
- Primary completion
- 2016-02-03
- Completion
- 2016-11-19
Publications
- Background Berry SJ, Coffey DS, Walsh PC, Ewing LL. The development of human benign prostatic hyperplasia with age. J Urol. 1984 Sep;132(3):474-9. doi: 10.1016/s0022-5347(17)49698-4.
- Background Yuan J, Liu Y, Yang Z, Qin X, Yang K, Mao C. The efficacy and safety of alpha-1 blockers for benign prostatic hyperplasia: an overview of 15 systematic reviews. Curr Med Res Opin. 2013 Mar;29(3):279-87. doi: 10.1185/03007995.2013.766594. Epub 2013 Jan 29.
- Background McVary KT, Roehrborn CG, Avins AL, Barry MJ, Bruskewitz RC, Donnell RF, Foster HE Jr, Gonzalez CM, Kaplan SA, Penson DF, Ulchaker JC, Wei JT. Update on AUA guideline on the management of benign prostatic hyperplasia. J Urol. 2011 May;185(5):1793-803. doi: 10.1016/j.juro.2011.01.074. Epub 2011 Mar 21.
- Background Filson CP, Hollingsworth JM, Clemens JQ, Wei JT. The efficacy and safety of combined therapy with alpha-blockers and anticholinergics for men with benign prostatic hyperplasia: a meta-analysis. J Urol. 2013 Dec;190(6):2153-60. doi: 10.1016/j.juro.2013.05.058. Epub 2013 May 30.
- Background 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 Oct;13(14):2085-96. doi: 10.1517/14656566.2012.714368. Epub 2012 Aug 28.
- Background Oelke M, Gericke A, Michel MC. Cardiovascular and ocular safety of alpha1-adrenoceptor antagonists in the treatment of male lower urinary tract symptoms. Expert Opin Drug Saf. 2014 Sep;13(9):1187-97. doi: 10.1517/14740338.2014.936376. Epub 2014 Jul 29.
- Background Hollingsworth JM, Wilt TJ. Lower urinary tract symptoms in men. BMJ. 2014 Aug 14;349:g4474. doi: 10.1136/bmj.g4474.
- Background Schwinn DA, Michelotti GA. alpha1-adrenergic receptors in the lower urinary tract and vascular bed: potential role for the alpha1d subtype in filling symptoms and effects of ageing on vascular expression. BJU Int. 2000 Apr;85 Suppl 2:6-11. doi: 10.1046/j.1464-410x.2000.00061.x. No abstract available.
- Background Hatano A, Takahashi H, Tamaki M, Komeyama T, Koizumi T, Takeda M. Pharmacological evidence of distinct alpha 1-adrenoceptor subtypes mediating the contraction of human prostatic urethra and peripheral artery. Br J Pharmacol. 1994 Nov;113(3):723-8. doi: 10.1111/j.1476-5381.1994.tb17053.x.
- Background de Mey C. alpha(1)-blockers for BPH: are there differences? Eur Urol. 1999;36 Suppl 3:52-63. doi: 10.1159/000052349.
- Background Dunn CJ, Matheson A, Faulds DM. Tamsulosin: a review of its pharmacology and therapeutic efficacy in the management of lower urinary tract symptoms. Drugs Aging. 2002;19(2):135-61. doi: 10.2165/00002512-200219020-00004.
- Background Bird ST, Delaney JA, Brophy JM, Etminan M, Skeldon SC, Hartzema AG. Tamsulosin treatment for benign prostatic hyperplasia and risk of severe hypotension in men aged 40-85 years in the United States: risk window analyses using between and within patient methodology. BMJ. 2013 Nov 5;347:f6320. doi: 10.1136/bmj.f6320.
- Background Chrischilles E, Rubenstein L, Chao J, Kreder KJ, Gilden D, Shah H. Initiation of nonselective alpha1-antagonist therapy and occurrence of hypotension-related adverse events among men with benign prostatic hyperplasia: a retrospective cohort study. Clin Ther. 2001 May;23(5):727-43. doi: 10.1016/s0149-2918(01)80022-9.
- Background Chang DF, Campbell JR. Intraoperative floppy iris syndrome associated with tamsulosin. J Cataract Refract Surg. 2005 Apr;31(4):664-73. doi: 10.1016/j.jcrs.2005.02.027.
- Background Abdel-Aziz S, Mamalis N. Intraoperative floppy iris syndrome. Curr Opin Ophthalmol. 2009 Jan;20(1):37-41. doi: 10.1097/ICU.0b013e32831bc0ad.
- Background Mamalis N. Intraoperative floppy-iris syndrome associated with systemic alpha blockers. J Cataract Refract Surg. 2008 Jul;34(7):1051-2. doi: 10.1016/j.jcrs.2008.05.017. No abstract available.
- Background Chang DF, Braga-Mele R, Mamalis N, Masket S, Miller KM, Nichamin LD, Packard RB, Packer M; ASCRS Cataract Clinical Committee. ASCRS White Paper: clinical review of intraoperative floppy-iris syndrome. J Cataract Refract Surg. 2008 Dec;34(12):2153-62. doi: 10.1016/j.jcrs.2008.08.031.
- Background Nickla DL, Wallman J. The multifunctional choroid. Prog Retin Eye Res. 2010 Mar;29(2):144-68. doi: 10.1016/j.preteyeres.2009.12.002. Epub 2009 Dec 29.
- Background Konno F, Takayanagi I. Characterization of postsynaptic alpha 1-adrenoceptors in the rabbit iris dilator smooth muscle. Naunyn Schmiedebergs Arch Pharmacol. 1986 Jul;333(3):271-6. doi: 10.1007/BF00512940.
- Background Shapiro BL, Petrovic V, Lee SE, Flach A, McCaffery S, O'Brien JM. Choroidal detachment following the use of tamsulosin (Flomax). Am J Ophthalmol. 2007 Feb;143(2):351-3. doi: 10.1016/j.ajo.2006.09.032. Epub 2006 Oct 23.
- Background Kerimoglu H, Zengin N, Ozturk B, Gunduz K. Unilateral chemosis, acute onset myopia and choroidal detachment following the use of tamsulosin. Acta Ophthalmol. 2010 Mar;88(2):e20-1. doi: 10.1111/j.1755-3768.2008.01503.x. Epub 2009 Mar 19. No abstract available.
- Background Nieminen T, Ylitalo R, Koobi T, Ylitalo P, Kahonen M. The vasodilatory effect of alfuzosin and tamsulosin in passive orthostasis: a randomised, double-blind, placebo-controlled study. Eur Urol. 2005 Mar;47(3):340-5. doi: 10.1016/j.eururo.2004.11.002. Epub 2004 Dec 29.
- Background Gu N, Kim J, Lim KS, Shin KH, Kim TE, Lee B, Shin SG, Jang IJ, Yu KS. Assessment of the effect of mirodenafil on the hemodynamics of healthy male Korean volunteers administered tamsulosin: a randomized, double-blind, placebo-controlled, 2-period crossover study. Clin Ther. 2012 Sep;34(9):1929-39. doi: 10.1016/j.clinthera.2012.08.002. Epub 2012 Aug 24.
- Background Kiel JW, Lovell MO. Adrenergic modulation of choroidal blood flow in the rabbit. Invest Ophthalmol Vis Sci. 1996 Mar;37(4):673-9.
- Background Tanabe H, Ito Y, Iguchi Y, Ozawa S, Ishikawa K, Terasaki H. Correlation between cross-sectional shape of choroidal veins and choroidal thickness. Jpn J Ophthalmol. 2011 Nov;55(6):614-9. doi: 10.1007/s10384-011-0079-2. Epub 2011 Aug 27.
- Background Vance SK, Imamura Y, Freund KB. The effects of sildenafil citrate on choroidal thickness as determined by enhanced depth imaging optical coherence tomography. Retina. 2011 Feb;31(2):332-5. doi: 10.1097/IAE.0b013e3181eef0ae.
Drugs
| Evaluation | Drug | Modality | Dose | Route |
|---|---|---|---|---|
| Subject | Alfuzosin | Small molecule | 10 mg | Oral |
| Comparator | Tamsulosin | Other / unclassified | 0.4 mg | Oral |