Efficacy and Safety of Lucentis® (Ranibizumab Intravitreal Injections) in Chilean Patients With Diabetic Macular Edema.

October 10, 2018 updated by: Novartis Pharmaceuticals

Chilean Interventional Open Label Pilot Study, to Assess the Efficacy and Safety of Lucentis® (Ranibizumab Intravitreal Injections) in Patients With Visual Impairment Due to Diabetic Macular Edema.

Ranibizumab is a humanized anti-vascular endothelial growth factor (VEGF) monoclonal antibody fragment approved in Chile by the Instituto de Salud Pública for the treatment of diabetic macular edema (DME), retinal vein occlusion and age-related macular degeneration.

Currently, there is limited epidemiologic information in Chile regarding the incidence of DME and limited experience of anti-VEGF hospital therapy. This study will evaluate the efficacy of intravitreal ranibizumab in Chilean DME patients, to investigate the anatomical and functional improvement following this treatment and to increase the local experience regarding the use of anti-VEGF in the treatment of diabetic macular edema.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

21

Phase

  • Phase 4

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Chile
    • Santiago DE Chile
      • Providencia, Santiago DE Chile, Chile, 7510168
        • Novartis Investigative Site

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  1. Diagnosis of macular edema due to diabetes (confirmed by fundus photography, and/or fluorescein angiography, and/or OCT) in at least one eye.
  2. Vision impairment due to DME (BCVA ETDRS letter score at 4 meters between 20 and 70 letters (6/12 - 3/60 at Snellen chart).

Exclusion Criteria:

  1. Laser photocoagulation in the study eye for the last 3 months.
  2. Any history of any intraocular surgery in the study eye within the past 3 months.
  3. Blood pressure >160/100 mmHg.
  4. Proliferative Diabetic Retinopathy.

Any other protocol inclusion/exclusion criteria that may apply.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Ranibizumab
Ranibizumab treatment
Drug: Ranibizumab Intravitreal injections
Ranibizumab intravitreal injections 3 months 1 per month and after PRN treatment.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Mean Change From Baseline in Best Correct Visual Acuity (BCVA)
Time Frame: baseline, week 48
Best-Corrected Visual Acuity (BCVA) letters was measured using Early Treatment Diabetic Retinopathy Study (EDTRS)-like chart while participants were in a sitting position at a testing distance of 4 meters. The range of EDTRS is 0 to 100 letters. A positive change from baseline of BCVA indicates improvement.
baseline, week 48

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change From Baseline in Best-corrected Visual Acuity (BCVA) After Week 4, 8, 12, 24 and 36
Time Frame: Baseline, Week 4, 8, 12, 24 and 36
BCVA was assessed in a sitting position using Early Treatment Diabetic Retinopathy Study (ETDRS)-like visual acuity (VA) testing charts at an initial testing distance of 4 meters. A positive change from baseline indicated improvement.
Baseline, Week 4, 8, 12, 24 and 36
Change Over Time of the Intraretinal Thickness in Optical Coherence Tomography (OCT)
Time Frame: Baseline, week 48
Retinal thickness was measured using Optical Coherence Tomography (OCT). The images were reviewed by a central reading center to ensure a standardized evaluation, an increase in thickness as compared to baseline may indicate a progression of the underlying disease.
Baseline, week 48
Number of Participants Receiving Injections of Ranibizumab 0.5 mg Over a 48 Week Treatment Period.
Time Frame: Week 48
Week 48
Number of Participants With Letters Gain / Loss at Week 52
Time Frame: Baseline, Week 52
Number of participants with letters correctly identified were performed with the patient in a sitting position using ETDRS-like visual acuity testing charts at a testing distance of 4 meters.
Baseline, Week 52
Change in Mean Visual Function Questionnaire (VFQ-25)
Time Frame: Baseline, week 48
"Visual functioning was assessed by the patient using the National Eye Institute Visual Function Questionnaire-25 (NEI-VFQ-25) on a scale from 0 to 100, where 0 = worst possible score and 100 = best. A positive change value indicates a perceived improvement in visual functioning, while a negative change value indicates a worsening."
Baseline, week 48

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Novartis Pharmaceuticals

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

April 25, 2015

Primary Completion (Actual)

December 21, 2016

Study Completion (Actual)

December 21, 2016

Study Registration Dates

First Submitted

May 14, 2014

First Submitted That Met QC Criteria

May 14, 2014

First Posted (Estimate)

May 16, 2014

Study Record Updates

Last Update Posted (Actual)

February 20, 2019

Last Update Submitted That Met QC Criteria

October 10, 2018

Last Verified

October 1, 2018

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • CRFB002DCL01

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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