- ICH GCP
- Registre américain des essais cliniques
- Essai clinique 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
Aperçu de l'étude
Statut
Les conditions
Intervention / Traitement
Description détaillée
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.
Type d'étude
Inscription (Réel)
Phase
- Phase 4
Contacts et emplacements
Lieux d'étude
-
-
-
Tokyo, Japon, 101-8309
- Surugadai Nihon university hospital
-
-
Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
- Enfant
- Adulte
- Adulte plus âgé
Accepte les volontaires sains
Sexes éligibles pour l'étude
La description
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
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
- Objectif principal: Traitement
- Répartition: Randomisé
- Modèle interventionnel: Affectation parallèle
- Masquage: Double
Armes et Interventions
Groupe de participants / Bras |
Intervention / Traitement |
|---|---|
|
Comparateur actif: 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)
Autres noms:
vitrectomy of 25 gauge system.
|
|
Comparateur factice: Sham injection and vitrectomy
Sham injection one day before vitrectomy.
|
vitrectomy of 25 gauge system.
Sham injection one day before vitrectomy
|
Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
|
Reoperation
Délai: 1 month
|
Vitreoretinal reoperation due to recurrent vitreous hemorrhage.
|
1 month
|
Mesures de résultats secondaires
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
|
Intra Operative Hemorrhage
Délai: End of the surgery.
|
Calculate the number of coagulators for the intra operative hemorrhage.
|
End of the surgery.
|
|
Postoperative Vitreous Hemorrhage.
Délai: 1 month
|
Postoperative vitreous hemorrhage that is permitted within 4 weeks after surgery.
|
1 month
|
|
Vascular Endothelial Growth Factor Concentration in Vitreous
Délai: Start of surgery.
|
Vascular endothelial growth factor concentration in vitreous at the start of vitrectomy.
|
Start of surgery.
|
|
Endolaser Photocoagulation
Délai: End of surgery.
|
Number of intraoperative endolaser photocoagulation.
|
End of surgery.
|
|
Iatrogenic Retinal Tears
Délai: End of surgery.
|
The number of participants who had intraoperative iatrogenic retinal tears.
|
End of surgery.
|
|
Surgical Time
Délai: End of surgery.
|
End of surgery.
|
|
|
Postoperative Best Corrected Visual Acuity
Délai: 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
Délai: 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
Délai: 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
Délai: Within 1 month after the surgery.
|
The number of participants with elevated intraocular pressure after surgery.
|
Within 1 month after the surgery.
|
|
Gas Tamponade
Délai: End of surgery.
|
The number of participants with gas tamponade at the end of the surgery.
|
End of surgery.
|
|
Silicon Oil Tamponade
Délai: End of surgery.
|
The number of participants with silicon oil tamponade at the end of the surgery.
|
End of surgery.
|
Collaborateurs et enquêteurs
Parrainer
Les enquêteurs
- Chaise d'étude: Ayumu Manabe
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude
Achèvement primaire (Réel)
Achèvement de l'étude (Réel)
Dates d'inscription aux études
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première publication (Estimation)
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Estimation)
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Plus d'information
Termes liés à cette étude
Termes MeSH pertinents supplémentaires
- Processus pathologiques
- Maladies cardiovasculaires
- Maladies vasculaires
- Maladies oculaires
- Maladies du système endocrinien
- Angiopathies diabétiques
- Complications du diabète
- Diabète sucré
- Hémorragie oculaire
- Maladies rétiniennes
- La rétinopathie diabétique
- Hémorragie
- Décollement de la rétine
- Hémorragie vitreuse
- Effets physiologiques des médicaments
- Agents antinéoplasiques
- Agents antinéoplasiques immunologiques
- Inhibiteurs de l'angiogenèse
- Agents modulateurs de l'angiogenèse
- Substances de croissance
- Inhibiteurs de croissance
- Bévacizumab
Autres numéros d'identification d'étude
- CCT-NAPN-23170
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