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Prospective Randomized Controlled Study of Intravitreal Injection of Bevacizumab for Proliferative Diabetic Retinopathy
Prospective Randomized Controlled Study of Intravitreal Injection of 0.16 mg Bevacizumab One Day Before Surgery for Proliferative Diabetic Retinopathy
Studie Overzicht
Toestand
Conditie
Interventie / Behandeling
Gedetailleerde beschrijving
Early postoperative hemorrhage in proliferative diabetic retinopathy (PDR) patients is a major complication. Intravitreal injection of anti-vascular endothelial growth factor (VEGF) has reported to reduce vitreous hemorrhage. Recently, numerous reports have shown the efficacy of reducing neovascularization activity before vitrectomy by preoperative intravitreal injection of anti-VEGF agents. When intravitreal bevacizumab (IVB) injection is used as an adjunct therapy, a shortterm effect is needed. Because it is reported some adverse events caused by bevacizumab injection. Hattori et al reported intravitreal injection of 0.16 mg/0.05 ml bevacizumab in PDR patients marked blockage of intravitreal VEGF concentrations in the pilot study. The purpose of this study is to evaluate low dose of intravitreal bevacizumab as a preoperative adjunct therapy reduce the postoperative vitreous hemorrhage. This study involves PDR patients who underwent vitrectomy between May 2012 and August 2013 at Surugadai Hospital of Nihon University. The risks to participants are accompanied by the intravitreal injection of bevacizumab (especially the possibility of endophthalmitis and thromboembolic events).
Between June 2012 and August 2013, one investigator (AM) randomized PDR patients with an indication for primary 25-gauge vitrectomy into a sham group and an IVB group. One day after injection, three surgeons except AM conducted the surgeries. Vitreous samples were collected at the start of surgery, and intraoperative and postoperative complications were evaluated.
Studietype
Inschrijving (Werkelijk)
Fase
- Fase 4
Contacten en locaties
Studie Locaties
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Tokyo, Japan, 101-8309
- Surugadai Nihon university hospital
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Deelname Criteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
- Kind
- Volwassen
- Oudere volwassene
Accepteert gezonde vrijwilligers
Geslachten die in aanmerking komen voor studie
Beschrijving
Inclusion Criteria:
- Clinical diagnosis of Proliferative Diabetic Retinopathy (PDR)
- Indicated for vitrectomy
Exclusion Criteria:
- History of intraocular surgery, intravitreal injection of drugs or sub-Tenon injection of steroids or retinal photocoagulation within 6 months
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
- Primair doel: Behandeling
- Toewijzing: Gerandomiseerd
- Interventioneel model: Parallelle opdracht
- Masker: Dubbele
Wapens en interventies
Deelnemersgroep / Arm |
Interventie / Behandeling |
|---|---|
|
Actieve vergelijker: Bevacizumab injection and vitrectomy
0.16 mg/0.05 ml bevacizumab intravitreal injection one day before vitrectomy.
|
0.16 mg/0.05 ml bevacizumab (single injection on 1 day before operation)
Andere namen:
vitrectomy of 25 gauge system.
|
|
Sham-vergelijker: Sham injection and vitrectomy
Sham injection one day before vitrectomy.
|
vitrectomy of 25 gauge system.
Sham injection one day before vitrectomy
|
Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
|
Reoperation
Tijdsspanne: 1 month
|
Vitreoretinal reoperation due to recurrent vitreous hemorrhage.
|
1 month
|
Secundaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
|
Intra Operative Hemorrhage
Tijdsspanne: End of the surgery.
|
Calculate the number of coagulators for the intra operative hemorrhage.
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End of the surgery.
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Postoperative Vitreous Hemorrhage.
Tijdsspanne: 1 month
|
Postoperative vitreous hemorrhage that is permitted within 4 weeks after surgery.
|
1 month
|
|
Vascular Endothelial Growth Factor Concentration in Vitreous
Tijdsspanne: Start of surgery.
|
Vascular endothelial growth factor concentration in vitreous at the start of vitrectomy.
|
Start of surgery.
|
|
Endolaser Photocoagulation
Tijdsspanne: End of surgery.
|
Number of intraoperative endolaser photocoagulation.
|
End of surgery.
|
|
Iatrogenic Retinal Tears
Tijdsspanne: End of surgery.
|
The number of participants who had intraoperative iatrogenic retinal tears.
|
End of surgery.
|
|
Surgical Time
Tijdsspanne: End of surgery.
|
End of surgery.
|
|
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Postoperative Best Corrected Visual Acuity
Tijdsspanne: 1 mouth after surgery.
|
Best corrected visual acuity was measured using the Landolt ring chart, and the result was converted to logMAR notation for analysis. The minimum of the scale is 2.0 and the maximum of the scale is -0.3. The higher values represent a worse outcome. |
1 mouth after surgery.
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Best Corrected Visual Acuity Change
Tijdsspanne: 1 month
|
Best corrected visual acuity change was calculated by postoperative logMAR visual acuity minus preoperative logMAR visual acuity. The higher values represent a worse outcome. |
1 month
|
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Postoperative Neovascular Glaucoma
Tijdsspanne: Within 1 month after the surgery.
|
The number of participants with progressive or persistent neovascular glaucoma after surgery.
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Within 1 month after the surgery.
|
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Elevated Intraocular Pressure
Tijdsspanne: Within 1 month after the surgery.
|
The number of participants with elevated intraocular pressure after surgery.
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Within 1 month after the surgery.
|
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Gas Tamponade
Tijdsspanne: End of surgery.
|
The number of participants with gas tamponade at the end of the surgery.
|
End of surgery.
|
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Silicon Oil Tamponade
Tijdsspanne: End of surgery.
|
The number of participants with silicon oil tamponade at the end of the surgery.
|
End of surgery.
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Medewerkers en onderzoekers
Sponsor
Onderzoekers
- Studie stoel: Ayumu Manabe
Studie record data
Bestudeer belangrijke data
Studie start
Primaire voltooiing (Werkelijk)
Studie voltooiing (Werkelijk)
Studieregistratiedata
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Schatting)
Updates van studierecords
Laatste update geplaatst (Schatting)
Laatste update ingediend die voldeed aan QC-criteria
Laatst geverifieerd
Meer informatie
Termen gerelateerd aan deze studie
Aanvullende relevante MeSH-voorwaarden
- Pathologische processen
- Hart-en vaatziekten
- Vaatziekten
- Oogziekten
- Endocriene systeemziekten
- Diabetische angiopathieën
- Diabetes complicaties
- Suikerziekte
- Oog bloeding
- Ziekten van het netvlies
- Diabetische retinopathie
- Bloeding
- Netvliesloslating
- Glasvocht bloeding
- Fysiologische effecten van medicijnen
- Antineoplastische middelen
- Antineoplastische middelen, immunologisch
- Angiogenese-remmers
- Angiogenese modulerende middelen
- Groei stoffen
- Groeiremmers
- Bevacizumab
Andere studie-ID-nummers
- CCT-NAPN-23170
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