History
# Registration date Revision Id
4 2019-10-01, 1398/07/09 107828
3 2019-01-07, 1397/10/17 75735
2 2018-09-23, 1397/07/01 64304
1 2016-09-11, 1395/06/21 23602
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  • Protocol summary

    This study is a Randomized controlled trial in Farabi Eye Hospital on glaucomatous patients under prostaglandin analogue medication treatment who undergo cataract surgery. The goal of the study is determining the role of prostaglandin analogues in CME incidence after cataract surgery. All glaucomatous patients under Latanaprost with negative history of uveitis and retinal diseases will be assessed by SD-OCT imaging before surgery. Patients would be excluded if have abnormal OCT before surgery or complicated cataract surgery. In this study, 100 patients will be randomized into two groups by block randomization. In the first group Latanaprost is continued and in the second group Latanaprost is replaced with other antiglaucoma medications. Drug prescription is double blinded. One month and three months after surgery, patients will be assessed again by SD-OCT imaging and the risk of CME incidence (as the main outcome) and the visual acuity and the intraocular pressure (as secondary outcomes) will be evaluated in these two groups.
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    این مطالعه یک مطالعه کارآزمایی بالینی تصادفی در بیمارستان چشم پزشکی فارابی بر روی بیماران گلوکومی که تحت درمان با پروستاگلاندین آنالوگها هستند و تحت عمل جراحی کاتاراکت قرار می گیرند می باشد. هدف ازانجام مطالعه بررسی نقش پروستاگلاندین آنالوگها در بروز CME بدنبال جراحی کاتاراکت است. تمام بیماران گلوکومی مصرف کننده لاتانوپروست که سابقه یووئیت و یا بیماری رتین نداشته اند، قبل از عمل جراحی تحت تصویربرداری با SD-OCT قرار می گیرند. در صورت غیر طبیعی بودن OCT قیل از جراحی و یا عارضه دار بودن جراحی کاتاراکت بیمار از مطالعه خارج خواهد شد. سپس 100 بیمار به روش تصادفی سازی از طریق بلوک بندی شده، به دوگروه تقسیم می شوند. در گروه اول لاتانوپروست ادامه می یابد و در گروه دوم لاتانوپروست با سایر داروهای آنتی گلوکوم جایگزین می شود. تجویز دارو به صورت دوسویه کور می باشد. یک ماه و سه ماه بعد از جراحی بیمار مجددا تحت SD-OCT قرار گرفته و ریسک پیدایش CME (به عنوان پیامد اولیه) و حدت بینایی و فشار چشمی (به عنوان پیامد ثانویه) در این دو گروه بررسی می شود.
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    To evaluate the effect of post-operative latanoprost administration on central macular thickness (CMT) after uncomplicated cataract surgery in glaucoma patients
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    بررسی اثر تجویز بعد از عمل لاتانوپروست بر ضخامت مرکزی ماکولا (CMT) بعد از عمل جراحی کاتاراکت غیر عارضه دار در بیماران گلوکومی
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    Two-arm parallel group randomized trial with blinded outcome assessment. Randomization was centralized and computerized with concealed randomization sequence carried out at an external site
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    کارآزمایی بالینی با گروه های موازی ، دو سویه کور ، تصادفی شده تصادفی سازی به صورت متمرکز و با توالی پنهان تصادفی سازی توسط فردی خارج از مطالعه طراحی شد.
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    The study was conducted at Farabi Eye Hospital (Tehran University of Medical Sciences, Tehran, Iran). Patients without any risk factor or abnormality such as cystic changes in the macula in pre-op OCT were included for allocation. Patients were allocated into two groups; In the first group, on postoperative day 1, patients continued receiving latanoprost and other antiglaucoma topical agents to control the IOP. In the second group, on postoperative day 1, latanoprost was discontinued, and patients received any other antiglaucoma topical agents to control the IOP. All surgeries and post-operative examinations were done by the same expert cataract surgeon (GH. F.). Patients were aware of the allocation, while surgeon/examiner (GH. F.), outcome assessor/analyst (M.Y.) were masked to the patient allocation which was done by M.M.
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    مطالعه در بیمارستان چشم پزشکی فارابی (دانشگاه علوم پزشکی تهران , تهران , ایران) انجام شد. بیماران بدون ریسک فاکتور یا نکته غیر طبیعی مانند تغییرات سیستیک ماکولا در OCT قبل از عمل جهت تقسیم بندی وارد شدند. بیماران به۲ گروه تخصیص یافتند ; در گروه اول, در روز اول بعد از عمل, بیماران به دریافت لاتانوپروست و سایر داروهای انتی گلوکوم موضعی جهت کنترل IOP ادامه دادند. در گروه دوم, در روز اول بعد از عمل, لاتانوپروست قطع شد و بیمار سایر داروهای آنتی گلوکوم موضعی را برای کنترل IOP دریافت کرد. تمامی جراحی ها و معاینات بعد از عمل توسط یک جراح حاذق کاتاراکت (ق.ف) انجام شد. بیماران از تقسیم بندی اگاه بودند, در حالی که جراح/معاینه کننده (ق.ف), مسئول ارزیابی پیامد ها/ انالیز کننده (م.ی) به تقسیم بندی بیماران که توسط (م.م) انجام شد ماسکه بودند.
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    Glaucoma patients treating with latanoprost; who need cataract surgery; and had no other risk factors for the development of pseudophakic macular edema; and with no abnormality in pre-operative optical coherence tomography (OCT) were included.
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    بیماران گلوکومی که تحت درمان با لاتانوپروست قرار دارند ; نیاز به جراحی کاتاراکت دارند; ریسک فاکتور دیگری برای ایجاد ادم ماکولای سودوفاکیک ندارند; و بدون نکته غیر طبیعی در OCT قبل از عمل وارد مطالعه می شوند.
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    Patients were allocated into two groups; continue latanoprost and discontinue latanoprost.
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    بیماران به دو گروه تقسیم بندی شدند:‌ادامه مصرف لاتانوپروست و قطع مصرف لاتانوپروست.
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    Main outcome was defined as central macular thickness (CMT) change from baseline measured by OCT imaging. Secondary outcomes were incidence of clinical cystoid macular edema, incidence of significant increase in CMT, visual acuity, IOP, and number of antiglaucoma medications.
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    پیامد اصلی به عنوان تغییر ضخامت مرکزی ماکولا (CMT) از حالت پایه که توسط تصویربرداری OCT اندازه گرفته می شود تعریف شد.پیامد های ثانویه میزان بروز بالینی ادم سیستوئید ماکولا, میزان بروز افزایش قابل توجه در CMT, حدت بینایی, فشار داخل چشمی و تعداد داروهای انتی گلوکوم بود.
  • General information

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    2016-03-19, 1394/12/29
    2016-09-21, 1395/06/31
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    2016-09-21, 1395/06/31
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    2018-09-03, 1397/06/12
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    2018-09-03, 1397/06/12
    Incidence of Cystoid Macular Edema (CME) following prostaglandin analogue use after uncomplicated cataract surgery in glaucoma patients
    Cystoid Macular Edema (CME) following prostaglandin analogue use after uncomplicated cataract surgery in glaucoma patients
    بررسی بروز ادم سیستوئید ماکولا ناشی از مصرف آنالوگهای پروستاگلاندین به دنبال عمل جراحی کاتاراکت غیر عارضه دار در بیماران گلوکومی
    ادم سیستوئید ماکولا ناشی از مصرف آنالوگهای پروستاگلاندین به دنبال عمل جراحی کاتاراکت غیر عارضه دار در بیماران گلوکومی
    Glaucoma patients with 18 years old or more
    Treating with topical latanoprost 0.005% eye drop at least for 6 months with or without other antiglaucoma topical agents
    Who needed cataract surgery (phacoemulsification)
    بیماران مبتلا به گلوکوم با سن ۱۸ سال یا بیشتر
    تحت درمان با قطره چشمی لاتانوپروست موضعی ۰.۰۰۵٪ برای حداقل ۶ ماه با یا بدون سایر داروهای موضعی انتی گلوکوم قرار گرفته اند
    نیاز به درمان جراحی کاتاراکت ( فیکوامولسیفیکاسیون) دارند
    History of any intraocular surgery, intravitreal injections, or retinal laser
    History of trauma
    Non-glaucomatous optic neuropathy
    High myopia
    History of diabetic retinopathy, any age-related macular degeneration (AMD), uveitis, retinal detachment (RD), epiretinal membrane (ERM), and retinal vascular disorders
    An occurrence of CME in the fellow eye following previous cataract surgery
    Recent history of NSAID therapy (topical or oral)
    Any abnormality in fundus examination except for glaucomatous changes
    Any abnormality in pre-operative macular OCT.
    سابقه جراحی داخل چشمی، تزریق داخل ویتره و یا لیزردرمانی شبکیه
    سابقه تروما
    اپتیک نوروپاتی غیر گلوکومی
    اختلال انکساری میوپی بالا
    سابقه رتینوپاتی دیابتیک ، دزنراسیون وابسته به سن ماکولا (AMD) ، بیماریهای التهابی چشمی (یووئیت) ، جدا شدن شبکیه (ERM ، (RD و بیماریهای واسکولار رتین
    بروز ادم سیستوئید ماکولار در چشم مقابل به دنبال جراحی کاتاراکت قبلی
    سابقه اخیر درمان خوراکی یا موضعی با NSAID
    هرگونه معاینه غیر طبیعی در فوندوس به جز تغییرات گلوکوماتوز
    هرگونه نکته غیر طبیعی در OCT ماکولای قبل از عمل
    Randomization is done by Block randomization method.
    تصادفی سازی به روش بلوک بندی انجام شده است.
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    A computer-based program (Excel® Microsoft Office software version 2016) to assign our samples to the two groups was used. The randomization used was block permutated randomization with the random block size of 2,4 and 6. The random sequence obtained by a biostatistician and it was concealed from the research group by coloring the background of cells in Excel datasheet. Whenever each new patient was a candidate for allocation, one author (M.M) uncolored the devoted cell and allocated the patient according to the written number.
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    برای کور سازی از نرم افزار اکسل (Excel® Microsoft Office software version 2016) استفاده شد. روش آن به صورت بلوک و در اندازه های 2-4-6 بوده است. ترتیب بلوک ها توسط مسئول آماری (م.ی) انجام شد که از افراد دیگر پنهان بوده. خانه های اکسل مربوطه با رنگ سیاه رنگ آمیزی شد و هر گاه که مریضی جهت تخصیص گروه مراجعه می نمود توسط م.م رنگ سیاه خانه اکسل برداشته می شد و عدد گروه 1 ( ادامه دارو) یا 2 (قطع دارو) مشخص می شد.
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    The design of the RCT was double-masked. Patients were aware of the allocation, while surgeon/examiner (GH.F.), outcome assessor/analyst (M.Y.) were masked to the patient allocation which was done by M.M.
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    طراحی مطالعه به صورت دو سویه کور بوده است. بیماران از گروهی که در آن قرار می گرفتند اطلاع داشتند. جراح / معاینه کننده (ق.ف) و همچنین مسئول ارزیابی پیامد / آنالیز داده ها (م.ی) نسبت به گروه بندی کور بوده اند. گروه بندی توسط (م.م) انجام شده است.
  • Secondary outcomes

    #1
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    Number of medications needed to control the IOP
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    تعداد داروهای مورد استفاده جهت کنترل فشار چشم
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    Before intervention, 1 month after intervention and 3 months after intervention
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    قبل از مداخله، یک ماه بعد از شروع مداخله و سه ماه بعد از شروع مداخله
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    Medical records
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    پرونده بیمار
    #2
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    Incidence of clinical cystoid macular edema
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    بروز بالینی ادم سیستوئید ماکولار
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    Before intervention, 1 month after intervention and 3 months after intervention
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    قبل از مداخله، یک ماه بعد از شروع مداخله و سه ماه بعد از شروع مداخله
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    Clinical Fundus examination
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    معاینه فوندوسکوپی
    #3
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    Incidence of significant increase in CMT
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    بروز بالینی افزایش ضخامت قابل توجه در CMT
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    Before intervention, 1 month after intervention and 3 months after intervention
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    قبل از مداخله، یک ماه بعد از شروع مداخله و سه ماه بعد از شروع مداخله
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    Defined as ≥ 50 µm compared to the baseline in OCT imaging
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    به صورت افزایش ضخامت ≥ 50 میکرون نسبت به قبل از عمل، در تصاویر OCT تعریف می شود.
  • Recruitment centers

    #1
    Name of recruitment center - English: Farabi Eye Hospital
    Name of recruitment center - Persian: بیمارستان چشم پزشکی فارابی
    Full name of responsible person - English:
    Full name of responsible person - Persian:
    Street address - English: Farabi Eye Hospital, Qazvin sq, South Kargar st
    Street address - Persian: خیابان کارگر جنوبی، میدان قزوین، بیمارستان چشم پزشکی فارابی
    City - English: Tehran
    City - Persian: تهران
    Province:
    Country: Iran (Islamic Republic of)
    Postal code:
    Phone:
    Fax:
    Email:
    Web page address:
    Name of recruitment center - English: Farabi Eye Hospital
    Name of recruitment center - Persian: بیمارستان چشم پزشکی فارابی
    Full name of responsible person - English: Ghasem Fakhraie
    Full name of responsible person - Persian: قاسم فخرایی
    Street address - English: Farabi Eye Hospital, Qazvin sq, South Kargar st
    Street address - Persian: خیابان کارگر جنوبی، میدان قزوین، بیمارستان چشم پزشکی فارابی
    City - English: Tehran
    City - Persian: تهران
    Province: Tehran
    Country: Iran (Islamic Republic of)
    Postal code: 1336616351
    Phone: +98 21 5542 1080
    Fax: +98 21 5541 0520
    Email: gfakhraie@gmail.com
    Web page address:
  • Sponsors / Funding sources

    #1
    contact.organization_id:
    Name of organization / entity - English: Vice chancellor for research, Tehran University of Medical Sciences
    Name of organization / entity - Persian: معاونت پژوهشی دانشگاه علوم پزشکی تهران
    Full name of responsible person - English: Neda Bina
    Full name of responsible person - Persian: ندا بینا
    Street address - English: Vice chancellor for research, Tehran University of Medical Sciences central building, Qods St, Keshavarz Av
    Street address - Persian: بلوار کشاورز، خیابان قدس، ساختمان مرکزی دانشگاه علوم پزشکی تهران، معاونت تحقیقات و فناوری
    City - English: Tehran
    City - Persian: تهران
    Province:
    Country: Iran (Islamic Republic of)
    Postal code:
    Phone:
    Fax:
    Email:
    Web page address:

    Name of organization / entity - English:
    Name of organization / entity - Persian:
    Full name of responsible person - English: Neda Bina
    Full name of responsible person - Persian: ندا بینا
    Street address - English: Vice chancellor for research, Tehran University of Medical Sciences central building, Qods St, Keshavarz Av
    Street address - Persian: بلوار کشاورز، خیابان قدس، ساختمان مرکزی دانشگاه علوم پزشکی تهران، معاونت تحقیقات و فناوری
    City - English: Tehran
    City - Persian: تهران
    Province: Tehran
    Country: Iran (Islamic Republic of)
    Postal code: 1417993337
    Phone: +98 21 8896 3546
    Fax: +98 21 8896 3546
    Email: ctc@tums.ac.ir
    Web page address: http://ctc.tums.ac.ir/
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    Public
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    Domestic
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    Academic
    Vice chancellor for research, Tehran University of Medical Sciences
    Tehran University of Medical Sciences
    معاونت پژوهشی دانشگاه علوم پزشکی تهران
    دانشگاه علوم پزشکی تهران
  • Person responsible for general inquiries

    contact.organization_id:
    Name of organization / entity - English: Farabi Eye Hospital, Tehran University of Medical Sciences
    Name of organization / entity - Persian: دانشگاه علوم پزشکی تهران، بیمارستان چشم پزشکی فارابی
    Full name of responsible person - English: Seyed Masoud Mirghorbani
    Full name of responsible person - Persian: سید مسعود مبرقربانی
    Position - English: Resident
    Position - Persian: دستیار تخصصی
    Latest degree:
    Area of specialty/work: 0
    Area of specialty/work title - English:
    Area of specialty/work title - Persian:
    Street address - English: Farabi Eye Hospital, Qazvin sq, South Kargar st
    Street address - Persian: خیابان کارگر جنوبی، میدان قزوین، بیمارستان چشم پزشکی فارابی
    City - English: Tehran
    City - Persian: تهران
    Province:
    Province - English:
    Province - Persian:
    contact.provinces_available: 1
    Country: Iran (Islamic Republic of)
    Postal code: 1336616351
    Phone: +98 21 5540 0003
    Mobile: +98 911 211 5615
    Fax: +98 55410520
    Email: m-mirghorbani@razi.tums.ac.ir; masoud_mirghorbani2016@yahoo.com
    Web page address:

    Name of organization / entity - English:
    Name of organization / entity - Persian:
    Full name of responsible person - English: Seyed Masoud Mirghorbani
    Full name of responsible person - Persian: سید مسعود میرقربانی
    Position - English: Resident
    Position - Persian: دستیار تخصصی
    Latest degree: med_doctor
    Area of specialty/work: 35
    Area of specialty/work title - English:
    Area of specialty/work title - Persian:
    Street address - English: Farabi Eye Hospital, Qazvin sq, South Kargar st
    Street address - Persian: خیابان کارگر جنوبی، میدان قزوین، بیمارستان چشم پزشکی فارابی
    City - English: Tehran
    City - Persian: تهران
    Province: Tehran
    Province - English:
    Province - Persian:
    contact.provinces_available: 1
    Country: Iran (Islamic Republic of)
    Postal code: 1336616351
    Phone: +98 21 5540 0003
    Mobile: +98 911 211 5615
    Fax: +98 21 5541 0520
    Email: m-mirghorbani@razi.tums.ac.ir
    Web page address:
  • Person responsible for scientific inquiries

    contact.organization_id:
    Name of organization / entity - English: Farabi Eye Hospital, Tehran University of Medical Sciences
    Name of organization / entity - Persian: دانشگاه علوم پزشکی تهران، بیمارستان چشم پزشکی فارابی
    Full name of responsible person - English: Ghasem Fakhraie
    Full name of responsible person - Persian: قاسم فخرایی
    Position - English: Associate Professor (Subspecialty in Glaucoma)
    Position - Persian: دانشیار چشم پزشکی ( فوق تخصص گلوکوم)
    Latest degree:
    Area of specialty/work: 0
    Area of specialty/work title - English:
    Area of specialty/work title - Persian:
    Street address - English: Farabi Eye Hospital, Qazvin sq, South Kargar st
    Street address - Persian: خیابان کارگر جنوبی، میدان قزوین، بیمارستان چشم پزشکی فارابی
    City - English: Tehran
    City - Persian: تهران
    Province:
    Province - English:
    Province - Persian:
    contact.provinces_available: 1
    Country: Iran (Islamic Republic of)
    Postal code: 1336616351
    Phone: +98 21 5540 0003
    Mobile: +98 911 211 5615
    Fax: +98 55 41052
    Email: fakhraie@tums.ac.ir
    Web page address: drfakhraie.com

    Name of organization / entity - English:
    Name of organization / entity - Persian:
    Full name of responsible person - English: Ghasem Fakhraie
    Full name of responsible person - Persian: قاسم فخرایی
    Position - English: Associate Professor (Subspecialty in Glaucoma)
    Position - Persian: دانشیار چشم پزشکی ( فوق تخصص گلوکوم)
    Latest degree: specialist
    Area of specialty/work: 35
    Area of specialty/work title - English:
    Area of specialty/work title - Persian:
    Street address - English: Farabi Eye Hospital, Qazvin sq, South Kargar st
    Street address - Persian: خیابان کارگر جنوبی، میدان قزوین، بیمارستان چشم پزشکی فارابی
    City - English: Tehran
    City - Persian: تهران
    Province: Tehran
    Province - English:
    Province - Persian:
    contact.provinces_available: 1
    Country: Iran (Islamic Republic of)
    Postal code: 1336616351
    Phone: +98 21 5540 0003
    Mobile: +98 911 211 5615
    Fax: +98 21 5541 0520
    Email: fakhraie@tums.ac.ir
    Web page address:
  • Person responsible for updating data

    contact.organization_id:
    Name of organization / entity - English: Farabi Eye Hospital, Tehran University of Medical Sciences
    Name of organization / entity - Persian: دانشگاه علوم پزشکی تهران، بیمارستان چشم پزشکی فارابی
    Full name of responsible person - English: Seyed Masoud Mirghorbani
    Full name of responsible person - Persian: سید مسعود میرقربانی
    Position - English: Resident
    Position - Persian: دستیار تخصصی
    Latest degree:
    Area of specialty/work: 0
    Area of specialty/work title - English:
    Area of specialty/work title - Persian:
    Street address - English: Farabi Eye Hospital, Qazvin sq, South Kargar st
    Street address - Persian: خیابان کارگر جنوبی، میدان قزوین، بیمارستان چشم پزشکی فارابی
    City - English: Tehran
    City - Persian: تهران
    Province:
    Province - English:
    Province - Persian:
    contact.provinces_available: 1
    Country: Iran (Islamic Republic of)
    Postal code: 1336616351
    Phone: +98 21 5540 0003
    Mobile: +98 911 211 5615
    Fax: +98 55 41052
    Email: m-mirghorbani@razi.tums.ac.ir; masoud_mirghorbani2016@yahoo.com
    Web page address:

    Name of organization / entity - English:
    Name of organization / entity - Persian:
    Full name of responsible person - English: Seyed Masoud Mirghorbani
    Full name of responsible person - Persian: سید مسعود میرقربانی
    Position - English: Resident
    Position - Persian: دستیار تخصصی
    Latest degree: med_doctor
    Area of specialty/work: 35
    Area of specialty/work title - English:
    Area of specialty/work title - Persian:
    Street address - English: Farabi Eye Hospital, Qazvin sq, South Kargar st
    Street address - Persian: خیابان کارگر جنوبی، میدان قزوین، بیمارستان چشم پزشکی فارابی
    City - English: Tehran
    City - Persian: تهران
    Province: Tehran
    Province - English:
    Province - Persian:
    contact.provinces_available: 1
    Country: Iran (Islamic Republic of)
    Postal code: 1336616351
    Phone: +98 21 5540 0003
    Mobile: +98 911 211 5615
    Fax: +98 21 5541 0520
    Email: m-mirghorbani@razi.tums.ac.ir
    Web page address:
  • Sharing plan

    no
    yes
    no
    yes
    yes
    no
    no
    empty
    Not published due to Farabi Eye Research department guidelines.
    empty
    به دلیل دستورالعمل های مرکز تحقیقات چشم فارابی انتشار داده نمی شود.
    empty
    The study protocol and informed consent will be shared privately, but a report of the study will be shared in public. Depending on the request, all data may be shared.
    empty
    پروتکل مطالعه و رضایت اگاهانه به طور اختصاصی به اشتراک گذاشته می شوند ولی گزارشی از مطالعه برای عموم به اشتراک گذاشته می شود. بسته به درخواست تمام اطلاعات ممکن است به اشتراک گذاشته شود .
    empty
    After completion of the study, for 12 months.
    empty
    بعد از اتمام مطالعه , برای ۱۲ ماه
    empty
    Just for academic researchers.
    empty
    تنها برای محققان اکادمیک
    empty
    Just for scientific and research purposes.
    empty
    تنها برای مقاصد علمی و تحقیقاتی
    empty
    Please send an e-mail with relevant content to corresponding author: m-mirghorbani@razi.tums.ac.ir Seyed Masoud Mirghorbani Resident of Ophthalmology Farabi Eye Hospital, Qazvin sq, South Kargar st, Tehran +982155400003
    empty
    لطفا ایمیلی با محتوای مرتبط به نویسنده پاسخگو فرستاده شود: m-mirghorbani@razi.tums.ac.ir سید مسعود میرقربانی دستیار چشم پزشکی تهران، خیابان کارگر جنوبی، میدان قزوین، بیمارستان چشم پزشکی فارابی +۹۸۲۱۵۵۴۰۰۰۳
    empty
    Anyone who needs detailed information on study protocol and informed consent can e-mail to the corresponding author and request for the data. The request will be evaluated in a few weeks.
    empty
    هر فردی که نیاز به اطلاعات با جزییات در مورد پروتکل مطالعه و رضایت اگاهانه داشته باشد میتواند به نویسنده مسئول ایمیل زده و اطلاعات را درخواست کند. در خواست در عرض چند هفته بررسی می شود.

Protocol summary

Study aim
To evaluate the effect of post-operative latanoprost administration on central macular thickness (CMT) after uncomplicated cataract surgery in glaucoma patients
Design
Two-arm parallel group randomized trial with blinded outcome assessment. Randomization was centralized and computerized with concealed randomization sequence carried out at an external site
Settings and conduct
The study was conducted at Farabi Eye Hospital (Tehran University of Medical Sciences, Tehran, Iran). Patients without any risk factor or abnormality such as cystic changes in the macula in pre-op OCT were included for allocation. Patients were allocated into two groups; In the first group, on postoperative day 1, patients continued receiving latanoprost and other antiglaucoma topical agents to control the IOP. In the second group, on postoperative day 1, latanoprost was discontinued, and patients received any other antiglaucoma topical agents to control the IOP. All surgeries and post-operative examinations were done by the same expert cataract surgeon (GH. F.). Patients were aware of the allocation, while surgeon/examiner (GH. F.), outcome assessor/analyst (M.Y.) were masked to the patient allocation which was done by M.M.
Participants/Inclusion and exclusion criteria
Glaucoma patients treating with latanoprost; who need cataract surgery; and had no other risk factors for the development of pseudophakic macular edema; and with no abnormality in pre-operative optical coherence tomography (OCT) were included.
Intervention groups
Patients were allocated into two groups; continue latanoprost and discontinue latanoprost.
Main outcome variables
Main outcome was defined as central macular thickness (CMT) change from baseline measured by OCT imaging. Secondary outcomes were incidence of clinical cystoid macular edema, incidence of significant increase in CMT, visual acuity, IOP, and number of antiglaucoma medications.

General information

Reason for update
Acronym
IRCT registration information
IRCT registration number: IRCT2016081329326N1
Registration date: 2016-09-11, 1395/06/21
Registration timing: prospective

Last update: 2018-10-24, 1397/08/02
Update count: 3
Registration date
2016-09-11, 1395/06/21
Registrant information
Name
Seyed Masoud Mirghorbani
Name of organization / entity
Farabi Eye Hospital, Tehran University of Medical Sciences
Country
Iran (Islamic Republic of)
Phone
+98 21 5540 0003
Email address
m-mirghorbani@razi.tums.ac.ir
Recruitment status
Recruitment complete
Funding source
Vice chancellor for research, Tehran University of Medical Sciences
Expected recruitment start date
2016-09-21, 1395/06/31
Expected recruitment end date
2018-09-21, 1397/06/30
Actual recruitment start date
2016-09-21, 1395/06/31
Actual recruitment end date
2018-09-03, 1397/06/12
Trial completion date
2018-09-03, 1397/06/12
Scientific title
Cystoid Macular Edema (CME) following prostaglandin analogue use after uncomplicated cataract surgery in glaucoma patients
Public title
Effect of Latanaprost eye drop on retina after cataract surgery in glaucoma patients
Purpose
Prevention
Inclusion/Exclusion criteria
Inclusion criteria:
Glaucoma patients with 18 years old or more Treating with topical latanoprost 0.005% eye drop at least for 6 months with or without other antiglaucoma topical agents Who needed cataract surgery (phacoemulsification)
Exclusion criteria:
History of any intraocular surgery, intravitreal injections, or retinal laser History of trauma Non-glaucomatous optic neuropathy High myopia History of diabetic retinopathy, any age-related macular degeneration (AMD), uveitis, retinal detachment (RD), epiretinal membrane (ERM), and retinal vascular disorders An occurrence of CME in the fellow eye following previous cataract surgery Recent history of NSAID therapy (topical or oral) Any abnormality in fundus examination except for glaucomatous changes Any abnormality in pre-operative macular OCT.
Age
From 18 years old
Gender
Both
Phase
2
Groups that have been masked
  • Care provider
  • Outcome assessor
  • Data analyser
Sample size
Target sample size: 166
Actual sample size reached: 156
Randomization (investigator's opinion)
Randomized
Randomization description
A computer-based program (Excel® Microsoft Office software version 2016) to assign our samples to the two groups was used. The randomization used was block permutated randomization with the random block size of 2,4 and 6. The random sequence obtained by a biostatistician and it was concealed from the research group by coloring the background of cells in Excel datasheet. Whenever each new patient was a candidate for allocation, one author (M.M) uncolored the devoted cell and allocated the patient according to the written number.
Blinding (investigator's opinion)
Double blinded
Blinding description
The design of the RCT was double-masked. Patients were aware of the allocation, while surgeon/examiner (GH.F.), outcome assessor/analyst (M.Y.) were masked to the patient allocation which was done by M.M.
Placebo
Not used
Assignment
Parallel
Other design features

Secondary Ids

empty

Ethics committees

1

Ethics committee
Name of ethics committee
Ethics committee of Tehran University of Medical Sciences
Street address
Farabi Eye Hospital, Qazvin sq, South Kargar st
City
Tehran
Province
Tehran
Postal code
1336616351
Approval date
2016-08-06, 1395/05/16
Ethics committee reference number
IR.TUMS.FARABIH.REC.1395.397

Health conditions studied

1

Description of health condition studied
Cystoid macular edema
ICD-10 code
H35.8
ICD-10 code description
Other specified retinal disorders

Primary outcomes

1

Description
Central Macular Thickness
Timepoint
Before intervention, 1 month after intervention and 3 months after intervention
Method of measurement
Using OCT-SD imaging

Secondary outcomes

1

Description
Intraocular pressure
Timepoint
Before intervention, 1 month after intervention and 3 months after intervention
Method of measurement
Goldmann tonometry

2

Description
Visual acuity
Timepoint
Before intervention, 1 month after intervention and 3 months after intervention
Method of measurement
Snellen chart

3

Description
Number of medications needed to control the IOP
Timepoint
Before intervention, 1 month after intervention and 3 months after intervention
Method of measurement
Medical records

4

Description
Incidence of clinical cystoid macular edema
Timepoint
Before intervention, 1 month after intervention and 3 months after intervention
Method of measurement
Clinical Fundus examination

5

Description
Incidence of significant increase in CMT
Timepoint
Before intervention, 1 month after intervention and 3 months after intervention
Method of measurement
Defined as ≥ 50 µm compared to the baseline in OCT imaging

Intervention groups

1

Description
Intervention group : In this group, prostaglandin analogue (Latanaprost eye drop) is discontinued immediately after cataract surgery for 3 months and replaced with other antiglaucoma agents to control IOP.
Category
Treatment - Drugs

2

Description
Control group: Prostaglandin analogue (Latanaprost eye drop, one drop before sleep at night) after cataract surgery will be continued.
Category
Treatment - Drugs

Recruitment centers

1

Recruitment center
Name of recruitment center
Farabi Eye Hospital
Full name of responsible person
Ghasem Fakhraie
Street address
Farabi Eye Hospital, Qazvin sq, South Kargar st
City
Tehran
Province
Tehran
Postal code
1336616351
Phone
+98 21 5542 1080
Fax
+98 21 5541 0520
Email
gfakhraie@gmail.com

Sponsors / Funding sources

1

Sponsor
Name of organization / entity
Tehran University of Medical Sciences
Full name of responsible person
Neda Bina
Street address
Vice chancellor for research, Tehran University of Medical Sciences central building, Qods St, Keshavarz Av
City
Tehran
Province
Tehran
Postal code
1417993337
Phone
+98 21 8896 3546
Fax
+98 21 8896 3546
Email
ctc@tums.ac.ir
Web page address
http://ctc.tums.ac.ir/
Grant name
-
Grant code / Reference number
-
Is the source of funding the same sponsor organization/entity?
Yes
Title of funding source
Tehran University of Medical Sciences
Proportion provided by this source
100
Public or private sector
Public
Domestic or foreign origin
Domestic
Category of foreign source of funding
empty
Country of origin
Type of organization providing the funding
Academic

Person responsible for general inquiries

Contact
Name of organization / entity
Tehran University of Medical Sciences
Full name of responsible person
Seyed Masoud Mirghorbani
Position
Resident
Latest degree
Medical doctor
Other areas of specialty/work
Ophthalmology
Street address
Farabi Eye Hospital, Qazvin sq, South Kargar st
City
Tehran
Province
Tehran
Postal code
1336616351
Phone
+98 21 5540 0003
Fax
+98 21 5541 0520
Email
m-mirghorbani@razi.tums.ac.ir
Web page address

Person responsible for scientific inquiries

Contact
Name of organization / entity
Tehran University of Medical Sciences
Full name of responsible person
Ghasem Fakhraie
Position
Associate Professor (Subspecialty in Glaucoma)
Latest degree
Specialist
Other areas of specialty/work
Ophthalmology
Street address
Farabi Eye Hospital, Qazvin sq, South Kargar st
City
Tehran
Province
Tehran
Postal code
1336616351
Phone
+98 21 5540 0003
Fax
+98 21 5541 0520
Email
fakhraie@tums.ac.ir
Web page address

Person responsible for updating data

Contact
Name of organization / entity
Tehran University of Medical Sciences
Full name of responsible person
Seyed Masoud Mirghorbani
Position
Resident
Latest degree
Medical doctor
Other areas of specialty/work
Ophthalmology
Street address
Farabi Eye Hospital, Qazvin sq, South Kargar st
City
Tehran
Province
Tehran
Postal code
1336616351
Phone
+98 21 5540 0003
Fax
+98 21 5541 0520
Email
m-mirghorbani@razi.tums.ac.ir
Web page address

Sharing plan

Deidentified Individual Participant Data Set (IPD)
No - There is not a plan to make this available
Justification/reason for indecision/not sharing IPD
Not published due to Farabi Eye Research department guidelines.
Study Protocol
Yes - There is a plan to make this available
Statistical Analysis Plan
No - There is not a plan to make this available
Informed Consent Form
Yes - There is a plan to make this available
Clinical Study Report
Yes - There is a plan to make this available
Analytic Code
No - There is not a plan to make this available
Data Dictionary
No - There is not a plan to make this available
Title and more details about the data/document
The study protocol and informed consent will be shared privately, but a report of the study will be shared in public. Depending on the request, all data may be shared.
When the data will become available and for how long
After completion of the study, for 12 months.
To whom data/document is available
Just for academic researchers.
Under which criteria data/document could be used
Just for scientific and research purposes.
From where data/document is obtainable
Please send an e-mail with relevant content to corresponding author: m-mirghorbani@razi.tums.ac.ir Seyed Masoud Mirghorbani Resident of Ophthalmology Farabi Eye Hospital, Qazvin sq, South Kargar st, Tehran +982155400003
What processes are involved for a request to access data/document
Anyone who needs detailed information on study protocol and informed consent can e-mail to the corresponding author and request for the data. The request will be evaluated in a few weeks.
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