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Proliferative Diabetic RetinopathyPhase 4NCT04464694

Pre-vitrectomy Intravitreal Ranibizumab for Patients With Proliferative Diabetic Retinopathy Combined With Diabetic Macular Edema

A Phase 4 study testing Ranibizumab and Pars plana vitrectomy in people with Proliferative Diabetic Retinopathy and Diabetic Macular Edema, run by Xinhua Hospital, Shanghai Jiao Tong University School of Medicine at 3 sites in China.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

To investigate ranibizumab's benefit on prevention of early postoperative vitreous haemorrhage in PDR-DME patients receiving vitrectomy. Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
Ranibizumab and Pars plana vitrectomy
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
142 participants
Where
3 sitesChina
Study dates
1 Sep 2020to 1 Jun 2022
Phase
Phase 4
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Age≥18 years old;
  • Type I or II diabetes mellitus, clinically diagnosed as diabetic macular edema
  • Diagnosed as proliferative diabetic retinopathy and pas plana vitrectomy (PPV) is required to undergo due to non-absorbent vitreous hemorrhage (VH), fibrovascular proliferation with vitreoretinal adhesions or tractional retinal detachment (TRD); or active severe proliferative retinopathy not responding to previous panretinal laser photocoagulation; as well as other indications of PPV at the investigator's discretion
  • Ability to provide written informed consent and comply with study assessments for the full duration of the study.

Who cannot join

  • Pregnancy or lactation;
  • History of stroke, peripheral vascular disease, angina or myocardial infarction within six months
  • Intraocular treatment with corticosteroids, anti-vascular endothelium growth factor or intraocular surgery within 45 days preceding baseline;
  • Clinically confirmed intraocular pressure (IOP) >=21 mmHg, uncontrolled glaucoma or iris neovascularization in either eye

Trial locations and contacts

3 sites in 1 country.

Peiquan Zhao contact

13311620396

Zhaopeiquan@126.com

China3 sites
  • Ningbo Eye Hospital

    Ningbo, Zhejiang, 315012

    Quanyong Yi, 13586543802, 1067572232@qq.com

  • Eye & Ent Hospital of Fudan University

    Shanghai, 2000831

    Xin Huang, 13818902665, xinhuang66@icloud.com

  • Xinhua Hospital Affiliated to Shanghai JiaoTong University School of Medicine

    Shanghai, 2000892

    Peiquan Zhao, +8613311620396, zhaopeiquan@126.com

Other trials in China

About this study

Official title: Prospective, Single-blind, Randomised, Controlled, Multi-centre Study to Evaluate the Benefit of Ranibizumab as an Adjunctive Therapy to Vitrectomy for Patients With Proliferative Diabetic Retinopathy Combined With Diabetic Macular Oedema

To investigate ranibizumab's benefit on prevention of early postoperative vitreous haemorrhage in PDR-DME patients receiving vitrectomy.

Read the detailed description

Primary Objective: To investigate ranibizumab's benefit on prevention of early postoperative vitreous haemorrhage in PDR-DME patients receiving vitrectomy.

Secondary Objective:To investigate ranibizumab's additional benefit on visual improvement, facilitation of surgery and postoperative outcomes in PDR-DME patients receiving vitrectomy.

Study design: This study is a prospective, randomized, single-blinded, blank-controlled, multi-center clinical trial that requires vitrectomy for PDR-DME patients.

Being tested
Ranibizumab, Sham injection, Pars plana vitrectomy
Keywords
PDR, DME, ranibizumab, vitrectomy

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • RanibizumabDrug

    Also called Lucentis

    Patients will receive single intravitreal injection of Ranibizumab 0.5 mg 3~7 days before vitrectomy.

  • Sham injectionOther

    Patients will receive single sham injection 3~7 days before vitrectomy.

  • Pars plana vitrectomyProcedure or surgery

    Also called Vitrectomy

    Surgical procedure to remove the intravitreal hemorrhage and fibrosis membrane, and re-attach the retina, and perform endo laser photocoagulation on retina

Study groups in NCT04464694
Study groupRoleWhat they receive
RanibizumabExperimentalSingle intravitreal injection of ranibizumab (0.5 mg) 3~7 days before vitrectomy
Receives: Drug: Ranibizumab; Procedure: Pars plana vitrectomy
Sham injectionSham comparatorSham injection 3~7 days before vitrectomy
Receives: Other: Sham injection; Procedure: Pars plana vitrectomy

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Early postoperative vitreous haemorrhage

    To compare the incidence of the early postoperative vitreous haemorrhage between two arms

    Measured: From day 1 to week 4 after the vitrectomy

Secondary outcomes (2)
  1. Mean Best-corrected visual acuity (BCVA) at Month 3

    To compare the changes from baseline BCVA to mean BCVA at month 3 between two arms.

    Measured: Month 3 after vitrectomy

  2. Mean Best-corrected visual acuity (BCVA) at Month 6

    To compare the changes from baseline BCVA to mean BCVA at month 6 between two arms.

    Measured: Month 6 after vitrectomy

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted9 Jul 2020
  2. Study start1 Sep 2020 (estimated)
  3. Primary completion1 Dec 2021 (estimated)
  4. Study completion1 Jun 2022 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Participant
Enrolment
142 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04464694
Sponsor's protocol ID
XH-20-011
Status last verified
Jul 2020
First submitted
5 Jul 2020
Last updated
9 Jul 2020
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Lo WR, Kim SJ, Aaberg TM Sr, Bergstrom C, Srivastava SK, Yan J, Martin DF, Hubbard GB 3rd. Visual outcomes and incidence of recurrent vitreous hemorrhage after vitrectomy in diabetic eyes pretreated with bevacizumab (avastin). Retina. 2009 Jul-Aug;29(7):926-31. doi: 10.1097/IAE.0b013e3181a8eb88.

    PubMed 19584650
  • Zhao LQ, Zhu H, Zhao PQ, Hu YQ. A systematic review and meta-analysis of clinical outcomes of vitrectomy with or without intravitreal bevacizumab pretreatment for severe diabetic retinopathy. Br J Ophthalmol. 2011 Sep;95(9):1216-22. doi: 10.1136/bjo.2010.189514. Epub 2011 Jan 27.

    PubMed 21278146
  • Comyn O, Wickham L, Charteris DG, Sullivan PM, Ezra E, Gregor Z, Aylward GW, da Cruz L, Fabinyi D, Peto T, Restori M, Xing W, Bunce C, Hykin PG, Bainbridge JW. Ranibizumab pretreatment in diabetic vitrectomy: a pilot randomised controlled trial (the RaDiVit study). Eye (Lond). 2017 Sep;31(9):1253-1258. doi: 10.1038/eye.2017.75. Epub 2017 May 12.

    PubMed 28498374

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Ranibizumab and Pars plana vitrectomy in people with Proliferative Diabetic Retinopathy and Diabetic Macular Edema, run by Xinhua Hospital, Shanghai Jiao Tong University School of Medicine at 3 sites in China.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: status not confirmed, as of the sponsor's last update on 9 Jul 2020. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 3 sites in China. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

Contact Peiquan Zhao (13311620396, Zhaopeiquan@126.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Early postoperative vitreous haemorrhage (time frame: From day 1 to week 4 after the vitrectomy). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04464694, which also lists 3 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 9 Jul 2020.

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