The Effects of α-adrenergic Receptor Antagonists on Choroid and Pupil
The Effects of Systemic Alfuzosin and Tamsulosin Hydrochloride on Choroidal Thickness and Pupil Diameter Sizes in Cases With Benign Prostatic Hyperplasia
1 other identifier
interventional
63
0 countries
N/A
Brief 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.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for phase_4
Started Oct 2015
Shorter than P25 for phase_4
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
October 29, 2015
CompletedPrimary Completion
Last participant's last visit for primary outcome
February 3, 2016
CompletedStudy Completion
Last participant's last visit for all outcomes
November 19, 2016
CompletedFirst Submitted
Initial submission to the registry
May 2, 2017
CompletedFirst Posted
Study publicly available on registry
May 9, 2017
CompletedMay 9, 2017
May 1, 2017
3 months
May 2, 2017
May 4, 2017
Conditions
Outcome Measures
Primary Outcomes (2)
Change from baseline choroidal thicknesses at 3 months
Choroidal thicknesses (CTs) measurement under the fovea, 3 mm nasal to the fovea and 3 mm temporal to the fovea at baseline, 1st and 3rd month, and recording as submacular (SCT), nasal (NCT) and temporal (TCT) choroidal thicknesses.
1 month and 2 months
Change from baseline pupil diameter sizes at 3 months
Mesopic, scotopic and photopic pupil diameter sizes measurement at baseline, 1st and 3rd months
1 month and 2 months
Study Arms (2)
Alfuzosin Hydrochloride
EXPERIMENTALAlfuzosin hydrochloride 10 mg tablet by mouth, every 24 hours for 3 months
Tamsulosin Hydrochloride
ACTIVE COMPARATORTamsulosin hydrochloride 0.4 mg tablet by mouth, every 24 hours for 3 months
Interventions
Alfuzosin hydrochloride Tablet
Tamsulosin Hydrochloride Tablet
Eligibility Criteria
You may qualify if:
- Best corrected visual acuity (BCVA) ≥ 0.8
- Diagnosis of BPH and initiation of alfuzosin hydrochloride or tamsulosin hydrochloride treatments
- years of age or older man
You may not qualify if:
- Occluded angle by gonioscopy (grade 0, narrow angle, grade I, grade II)
- Corneal scarring or cataract that prevents appearance of the fundus
- Formation of macular or peripheral retinal pathologies or choroidopathy
- Optic nerve pathologies such as optic neuropathy
- Spherical refractive error ≥ ±6.00 D or cylinder refractive error ≥ ±3.00 D
- Systemic diseases that may affect choroidal blood flow
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Related Publications (26)
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PMID: 23323875BACKGROUNDMcVary 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.
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PMID: 25073735BACKGROUNDHollingsworth JM, Wilt TJ. Lower urinary tract symptoms in men. BMJ. 2014 Aug 14;349:g4474. doi: 10.1136/bmj.g4474.
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PMID: 7858860BACKGROUNDde Mey C. alpha(1)-blockers for BPH: are there differences? Eur Urol. 1999;36 Suppl 3:52-63. doi: 10.1159/000052349.
PMID: 10559631BACKGROUNDDunn 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.
PMID: 11950378BACKGROUNDBird 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.
PMID: 24192967BACKGROUNDChrischilles 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.
PMID: 11394731BACKGROUNDChang 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.
PMID: 15899440BACKGROUNDAbdel-Aziz S, Mamalis N. Intraoperative floppy iris syndrome. Curr Opin Ophthalmol. 2009 Jan;20(1):37-41. doi: 10.1097/ICU.0b013e32831bc0ad.
PMID: 19077827BACKGROUNDMamalis 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.
PMID: 18571055BACKGROUNDChang 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.
PMID: 19027575BACKGROUNDNickla 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.
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PMID: 2876390BACKGROUNDShapiro 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.
PMID: 17258532BACKGROUNDKerimoglu 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.
PMID: 19302075BACKGROUNDNieminen 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.
PMID: 15716198BACKGROUNDGu 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.
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PMID: 8595968BACKGROUNDTanabe 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.
PMID: 21874308BACKGROUNDVance 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.
PMID: 20975620BACKGROUND
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
Mustafa Dogan, Asst. Prof.
Afyon Kocatepe University Eye Clinics
Study Design
- Study Type
- interventional
- Phase
- phase 4
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
May 2, 2017
First Posted
May 9, 2017
Study Start
October 29, 2015
Primary Completion
February 3, 2016
Study Completion
November 19, 2016
Last Updated
May 9, 2017
Record last verified: 2017-05