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Low dose of intravitreal bevacizumab (Avastin) used as preoperative adjunct therapy for proliferative diabetic retinopathy

Low dose of intravitreal bevacizumab (Avastin) used as preoperative adjunct therapy for proliferative diabetic retinopathy - Low dose of Intravitreal bevacizumab (Avastin) used as preoperative adjunct therapy for proliferative diabetic retinopathy

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000007482
Enrollment
60
Registered
2012-04-01
Start date
2012-04-01
Completion date
Unknown
Last updated
2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Proliferative diabetic retinopathy

Interventions

Period: 6 months follow up after intravitreal bevacizumab (Avastin) injection for preoperative adjunct therapy. Dose: Bevacizumab(Avastin) 0.16mg/0.05 ml Repeat: Single time Period: 6 months follow

Sponsors

Division of Ophthalmology, Department of Visual Sciences, Surugadai-Hospital, Nihon University.
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Patients with proliferative diabetic retinopathy who are indicated for vitrectomy.

Exclusion criteria

Exclusion criteria: Patients who had undergone intraocular surgery or retinal photocoagulation within 6 months before the study, and those who had undergone intravitreal injection of drugs or sub-Tenon injection of steroids within 6 months before the study were excluded.

Design outcomes

Primary

MeasureTime frame
Preoperative vitreous VEGF concentration, Number of intraoperative coagulation spots, Number of reoperation caused by recurent postoperative hemorrhage, Post operative Visual acuity, operation time, Kind of tamponade after operation, Number of intrapoerative photocoagulation

Secondary

MeasureTime frame
VEGF concentrations in vitreous, surgical time, frequencies of using gas and silicon oil temponade, number of intraoperative laser treatment, frequency of iatrogenic retinal breaks, postoperative (1 month) visual acuity, visual improvement.

Countries

Japan

Contacts

Public ContactAyumu Manabe

Surugadai-Hospital, Nihon University Division of Ophthalmology, Department of Visual Sciences

ayumu.m76@gmail.com0332931711

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026