Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
Clinical Trial
. 2010 Nov;117(11):2146-51.
doi: 10.1016/j.ophtha.2010.08.016. Epub 2010 Sep 19.

Two-year outcomes of the ranibizumab for edema of the mAcula in diabetes (READ-2) study

Quan Dong Nguyen  1 , Syed Mahmood Shah, Afsheen A Khwaja, Roomasa Channa, Elham Hatef, Diana V Do, David Boyer, Jeffery S Heier, Prema Abraham, Allen B Thach, Eugene S Lit, Bradley S Foster, Erik Kruger, Pravin Dugel, Thomas Chang, Arup Das, Thomas A Ciulla, John S Pollack, Jennifer I Lim, Dean Eliott, Peter A Campochiaro; READ-2 Study Group
Affiliations
Clinical Trial

Two-year outcomes of the ranibizumab for edema of the mAcula in diabetes (READ-2) study

Quan Dong Nguyen et al. Ophthalmology. 2010 Nov.

Erratum in

  • Ophthalmology. 2011 Jun;118(6):1016. Eliot, Dean [corrected to Eliott, Dean]

Abstract

Objectives: To determine the long-term effects of ranibizumab (RBZ) in patients with diabetic macular edema (DME).

Design: Prospective, randomized, interventional, multicenter clinical trial.

Participants: One hundred twenty-six patients with DME.

Methods: Subjects were randomized 1:1:1 to receive 0.5 mg RBZ at baseline and months 1, 3, and 5 (group 1), focal or grid laser photocoagulation at baseline and month 3 if needed (group 2), or a combination of 0.5 mg RBZ and focal or grid laser at baseline and month 3 (group 3). Starting at month 6, if retreatment criteria were met, all subjects could be treated with RBZ.

Main outcome measures: The mean change from baseline in best-corrected visual acuity (BCVA) at month 24.

Results: After the primary end point at month 6, most patients in all groups were treated only with RBZ, and the mean number of injections was 5.3, 4.4, and 2.9 during the 18-month follow-up period in groups 1, 2, and 3, respectively. For the 33 patients in group 1, 34 patients in group 2, and 34 patients in group 3 who remained in the study through 24 months, the mean improvement in BCVA was 7.4, 0.5, and 3.8 letters at the 6-month primary end point, compared with 7.7, 5.1, and 6.8 letters at month 24, and the percentage of patients who gained 3 lines or more of BCVA was 21, 0, and 6 at month 6, compared with 24, 18, and 26 at month 24. The percentage of patients with 20/40 or better Snellen equivalent at month 24 was 45% in group 1, 44% in group 2, and 35% in group 3. Mean foveal thickness (FTH), defined as center subfield thickness, at month 24 was 340 μm, 286 μm, and 258 μm for groups 1, 2, and 3, respectively, and the percentage of patients with center subfield thickness of 250 μm or less was 36%, 47%, and 68%, respectively.

Conclusions: Intraocular injections of RBZ provided benefit for patients with DME for at least 2 years, and when combined with focal or grid laser treatments, the amount of residual edema was reduced, as were the frequency of injections needed to control edema.

Financial disclosure(s): Proprietary or commercial disclosure may be found after the references.

PubMed Disclaimer

Publication types