- ICH GCP
- Amerikanska kliniska prövningsregistret
- Klinisk prövning NCT01854593
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
Studieöversikt
Status
Betingelser
Intervention / Behandling
Detaljerad beskrivning
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.
Studietyp
Inskrivning (Faktisk)
Fas
- Fas 4
Kontakter och platser
Studieorter
-
-
-
Tokyo, Japan, 101-8309
- Surugadai Nihon university hospital
-
-
Deltagandekriterier
Urvalskriterier
Åldrar som är berättigade till studier
- Barn
- Vuxen
- Äldre vuxen
Tar emot friska volontärer
Kön som är behöriga för studier
Beskrivning
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
Studieplan
Hur är studien utformad?
Designdetaljer
- Primärt syfte: Behandling
- Tilldelning: Randomiserad
- Interventionsmodell: Parallellt uppdrag
- Maskning: Dubbel
Vapen och interventioner
Deltagargrupp / Arm |
Intervention / Behandling |
|---|---|
|
Aktiv komparator: 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)
Andra namn:
vitrectomy of 25 gauge system.
|
|
Sham Comparator: Sham injection and vitrectomy
Sham injection one day before vitrectomy.
|
vitrectomy of 25 gauge system.
Sham injection one day before vitrectomy
|
Vad mäter studien?
Primära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
|
Reoperation
Tidsram: 1 month
|
Vitreoretinal reoperation due to recurrent vitreous hemorrhage.
|
1 month
|
Sekundära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
|
Intra Operative Hemorrhage
Tidsram: End of the surgery.
|
Calculate the number of coagulators for the intra operative hemorrhage.
|
End of the surgery.
|
|
Postoperative Vitreous Hemorrhage.
Tidsram: 1 month
|
Postoperative vitreous hemorrhage that is permitted within 4 weeks after surgery.
|
1 month
|
|
Vascular Endothelial Growth Factor Concentration in Vitreous
Tidsram: Start of surgery.
|
Vascular endothelial growth factor concentration in vitreous at the start of vitrectomy.
|
Start of surgery.
|
|
Endolaser Photocoagulation
Tidsram: End of surgery.
|
Number of intraoperative endolaser photocoagulation.
|
End of surgery.
|
|
Iatrogenic Retinal Tears
Tidsram: End of surgery.
|
The number of participants who had intraoperative iatrogenic retinal tears.
|
End of surgery.
|
|
Surgical Time
Tidsram: End of surgery.
|
End of surgery.
|
|
|
Postoperative Best Corrected Visual Acuity
Tidsram: 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.
|
|
Best Corrected Visual Acuity Change
Tidsram: 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
|
|
Postoperative Neovascular Glaucoma
Tidsram: Within 1 month after the surgery.
|
The number of participants with progressive or persistent neovascular glaucoma after surgery.
|
Within 1 month after the surgery.
|
|
Elevated Intraocular Pressure
Tidsram: Within 1 month after the surgery.
|
The number of participants with elevated intraocular pressure after surgery.
|
Within 1 month after the surgery.
|
|
Gas Tamponade
Tidsram: End of surgery.
|
The number of participants with gas tamponade at the end of the surgery.
|
End of surgery.
|
|
Silicon Oil Tamponade
Tidsram: End of surgery.
|
The number of participants with silicon oil tamponade at the end of the surgery.
|
End of surgery.
|
Samarbetspartners och utredare
Sponsor
Utredare
- Studiestol: Ayumu Manabe
Studieavstämningsdatum
Studera stora datum
Studiestart
Primärt slutförande (Faktisk)
Avslutad studie (Faktisk)
Studieregistreringsdatum
Först inskickad
Först inskickad som uppfyllde QC-kriterierna
Första postat (Uppskatta)
Uppdateringar av studier
Senaste uppdatering publicerad (Uppskatta)
Senaste inskickade uppdateringen som uppfyllde QC-kriterierna
Senast verifierad
Mer information
Termer relaterade till denna studie
Ytterligare relevanta MeSH-villkor
- Patologiska processer
- Hjärt-kärlsjukdomar
- Kärlsjukdomar
- Ögonsjukdomar
- Sjukdomar i det endokrina systemet
- Diabetiska angiopatier
- Diabeteskomplikationer
- Diabetes mellitus
- Ögonblödning
- Näthinnesjukdomar
- Diabetisk retinopati
- Blödning
- Näthinneavlossning
- Glaskroppsblödning
- Läkemedels fysiologiska effekter
- Antineoplastiska medel
- Antineoplastiska medel, immunologiska
- Angiogeneshämmare
- Angiogenesmodulerande medel
- Tillväxtämnen
- Tillväxthämmare
- Bevacizumab
Andra studie-ID-nummer
- CCT-NAPN-23170
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