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Safety & Efficacy Study Evaluating the Combination of Bevasiranib & Lucentis Therapy in Wet AMD (COBALT)

This study is currently recruiting participants.
Verified by Opko Health, Inc., October 2008

Sponsored by: Opko Health, Inc.
Information provided by: Opko Health, Inc.
ClinicalTrials.gov Identifier: NCT00499590
  Purpose

The purpose of this study is to compare the safety and effectiveness of bevasiranib given either every 8 weeks or every 12 weeks after an initial pre-treatment with 3 injections of Lucentis® (ranibizumab injection) compared to Lucentis® given every 4 weeks to people with wet AMD. Patients will be assigned at random (like tossing a coin) to receive one of three treatments options for 104 weeks.


Condition Intervention Phase
Macular Degeneration
Drug: bevasiranib
Drug: ranibizumab
Phase III

Genetics Home Reference related topics:   X-linked juvenile retinoschisis   

MedlinePlus related topics:   Macular Degeneration   

Drug Information available for:   Ranibizumab    Cobalt   

U.S. FDA Resources

Study Type:   Interventional
Study Design:   Treatment, Randomized, Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Active Control, Parallel Assignment, Safety/Efficacy Study
Official Title:   A Phase 3, Randomized, Double-Masked, Parallel-Assignment Study of Intravitreal Bevasiranib Sodium, Administered Every 8 or 12 Weeks as Maintenance Therapy Following Three Injections of Lucentis® Compared With Lucentis® Monotherapy Every 4 Weeks in Patients With Exudative Age-Related Macular Degeneration (AMD).

Further study details as provided by Opko Health, Inc.:

Primary Outcome Measures:
  • Visual Acuity [ Time Frame: week 60 ] [ Designated as safety issue: No ]

Secondary Outcome Measures:
  • Need for Rescue Therapy, Time to Rescue Therapy, and Number of patients with a 3 or more line gain in vision [ Time Frame: Week 60 ] [ Designated as safety issue: No ]

Estimated Enrollment:   330
Study Start Date:   July 2007
Estimated Study Completion Date:   August 2010
Estimated Primary Completion Date:   August 2009 (Final data collection date for primary outcome measure)

Arms Assigned Interventions
A: Active Comparator
Lucentis® (0.5mg) every 4 weeks.
Drug: ranibizumab
Lucentis® (0.5 mg)administered intravitreally every 4 weeks.
B: Experimental
Bevasiranib (2.5mg) every 8 weeks beginning at week 12, after pre-treatment with 3 injections of Lucentis® and initial priming doses of bevasiranib at weeks 2 & 6.
Drug: bevasiranib
Bevasiranib (2.5mg) administered intravitreally every 8 or 12 weeks
C: Experimental
Bevasiranib (2.5mg) every 12 weeks beginning at week 12, after pre-treatment with 3 injections of Lucentis® and initial priming doses of bevasiranib at weeks 2 & 6.
Drug: bevasiranib
Bevasiranib (2.5mg) administered intravitreally every 8 or 12 weeks

  Eligibility
Ages Eligible for Study:   50 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No

Criteria

Inclusion Criteria:

  1. Patients must be age 50 years or older
  2. Patients must have predominantly classic, minimally classic or occult with no classic lesions secondary to Age Related Macular Degeneration.
  3. The study eye must have ETDRS best corrected visual acuity of 69 to 24 letters (20/40 to 20/320 Snellen equivalent).
  4. Patients must be willing and able to return for scheduled monthly follow-up visits for two-years.

Exclusion Criteria:

  1. Prior pharmacologic treatment for AMD in the study (patients can not have previously received Avastin®/Lucentis®, Macugen®, or any other anti-VEGF agents, steroid treatments, PDT, radiation treatment, or any experimental therapies for AMD in the study eye)
  2. Any intraocular surgery of the study eye within 12 weeks of screening
  3. Previous posterior vitrectomy of the study eye
  4. Advanced glaucoma or intraocular pressure above 22 mm Hg in the study eye despite treatment.
  Contacts and Locations

Please refer to this study by its ClinicalTrials.gov identifier: NCT00499590

Contacts
Contact: Kristine Curtiss     clinicaltrials@opko.com    

Show 62 study locations  Show 62 Study Locations

Sponsors and Collaborators
Opko Health, Inc.

Investigators
Study Director:     Denis O'Shaughnessy, Ph.D.     Senior VP of Clincial Development    
  More Information


Responsible Party:   Opko Health ( Denis O'Shaughnessy, PhD Senior VP Clinical Development )
Study ID Numbers:   ACU301
First Received:   July 10, 2007
Last Updated:   October 21, 2008
ClinicalTrials.gov Identifier:   NCT00499590
Health Authority:   United States: Food and Drug Administration

Keywords provided by Opko Health, Inc.:
AMD  
Macular Degeneration  
bevasiranib  
COBALT study  
age related macular degeneration
wet AMD
wet age related macular degeneration

Study placed in the following topic categories:
Cobalt
Eye Diseases
Retinal Degeneration
Macular Degeneration
Retinal Diseases
Retinal degeneration

ClinicalTrials.gov processed this record on November 19, 2008




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