Pivotal 1 Study of ABBV-RGX-314 (Also Known as RGX-314) Gene Therapy Administered Via Subretinal Delivery One Time in Participants With nAMD
Purpose
ABBV-RGX-314 (also known as RGX-314) is being developed as a novel one-time gene therapy for the treatment of neovascular (wet) age-related macular degeneration (wet AMD or nAMD). Wet AMD is characterized by loss of vision due to new, leaky blood vessel formation in the retina. Wet AMD is a significant cause of vision loss in the United States, Europe and Japan, with up to 2 million people living with wet AMD in these geographies alone. Current anti-vascular endothelial growth factor (anti-VEGF) therapies have significantly changed the landscape for treatment of wet AMD, becoming the standard of care due to their ability to maintain or prevent progression of vision loss in the majority of patients. These therapies, however, require life-long intraocular injections, typically repeated every 4 to 16 weeks in frequency, to maintain efficacy. Due to the burden of these treatments, patients often experience a decline in vision with reduced frequency of treatment over time.
Conditions
- AMD
- nAMD
- Wet Age-related Macular Degeneration
- wAMD
- Wet AMD
- CNV
- Neovascular AMD
- Neovascular Age-related Macular Degeneration
- Choroidal Neovascularization
Eligibility
- Eligible Ages
- Between 50 Years and 89 Years
- Eligible Sex
- All
- Accepts Healthy Volunteers
- No
Inclusion Criteria
- Age ≥ 50 years and ≤ 89 years 2. An ETDRS BCVA letter score between ≤ 78 and ≥ 40 in the study eye 3. Diagnosis of subfoveal CNV secondary to AMD in the study eye previously treated with anti-VEGF 4. Must be pseudophakic (at least 12 weeks postcataract surgery) in the study eye. 5. Willing and able to provide written, signed informed consent for this study 6. Participants must have demonstrated a meaningful response to anti-VEGF therapy at study entry Inclusion Criteria (Bilateral Treatment Substudy)*: 1. An ETDRS BCVA letter score between ≤ 83 and ≥ 40 in both eyes 2. Diagnosis of subfoveal choroidal neovascularization (CNV) secondary to AMD in both eyes 3. Must be pseudophakic (at least 12 weeks postcataract surgery) in both eyes 4. Willing and able to provide written, signed informed consent for this study 5. Newcomers must have active disease in the study eye; crossover participants must have active disease in the eye not treated in the main study
Exclusion Criteria
- CNV or macular edema in the study eye secondary to any causes other than AMD 2. Subfoveal fibrosis or atrophy in the study eye, as determined by CRC 3. Any condition in the investigator's opinion that could limit VA improvement in the study eye 4. Active or history of retinal detachment, or current retinal tear that cannot be treated, in the study eye 5. Advanced glaucoma or history of secondary glaucoma in the study eye 6. History of intraocular surgery in the study eye within 12 weeks prior to randomization 7. History of intravitreal therapy in the study eye, such as intravitreal steroid injection or investigational product, other than anti-VEGF therapy, in the 6 months prior to Screening Visit 1 8. Prior treatment with gene therapy 9. Recent myocardial infarction, cerebrovascular accident, or transient ischemic attack within the past 6 months Exclusion Criteria (Bilateral Treatment Substudy)*: 1. CNV or macular edema in either eye secondary to any causes other than AMD 2. Subfoveal fibrosis or atrophy in either eye 3. Any condition in the investigator's opinion that could limit VA improvement in either eye 4. Active or history of retinal detachment, or current retinal tear that cannot be treated in either eye 5. Advanced glaucoma or history of secondary glaucoma in either eye 6. Myocardial infarction, cerebrovascular accident, or transient ischemic attack within the past 6 months 7. History of intraocular surgery in either eye within 12 weeks prior to randomization (Week -2) 8. History of intravitreal therapy in either eye, such as intravitreal steroid injection or investigational product, other than anti-VEGF therapy, in the 6 months prior to screening 9. Prior treatment with gene therapy (*) For previously treated crossover participants, criteria apply to the eye not treated in the main study only.
Study Design
- Phase
- Phase 2/Phase 3
- Study Type
- Interventional
- Allocation
- Randomized
- Intervention Model
- Parallel Assignment
- Intervention Model Description
- 2 ABBV-RGX-314 treatment arms, 1 control arm (ranibizumab)
- Primary Purpose
- Treatment
- Masking
- Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
- Masking Description
- The administration of ABBV-RGX-314 requires an outpatient surgical procedure performed in an operating room, while the active control, ranibizumab, is administered via intravitreal injection in an office setting. This study will be partially masked which will include masking of key study assessors and study drug dose.
Arm Groups
| Arm | Description | Assigned Intervention |
|---|---|---|
|
Experimental ABBV-RGX-314 Dose 1 |
ABBV-RGX-314 Dose 1 administered via subretinal delivery one time. |
|
|
Experimental ABBV-RGX-314 Dose 2 |
ABBV-RGX-314 Dose 2 administered via subretinal delivery one time. |
|
|
Active Comparator Control Arm |
Ranibizumab administered via intravitreal injection approximately every 28 days |
|
Recruiting Locations
Phoenix, Arizona 85053
Site Coordinator
602-222-2221
Sun City, Arizona 85351
Little Rock, Arkansas 72205
Beverly Hills, California 90211
Campbell, California 95008
Encino, California 91436
Fullerton, California 92835
Huntington Beach, California 92647
Mountain View, California 94040-4101
Pasadena, California 91105
Pasadena, California 91107
Poway, California 92064-2530
Sacramento, California 95825
San Francisco, California 94107
San Francisco, California 94143
Santa Ana, California 92705
Colorado Springs, Colorado 80909
Site Coordinator
(719) 473-9595
Durango, Colorado 81303
Lakewood, Colorado 80228
Deerfield Beach, Florida 33064-1342
Gainesville, Florida 32607
Lakeland, Florida 33805
Pensacola, Florida 32503
Site Coordinator
(850) 476-6759
St. Petersburg, Florida 33711-1141
Tallahassee, Florida 32308
Augusta, Georgia 30909
Marietta, Georgia 30060
Marietta, Georgia 30060
Sandy Springs, Georgia 30328-4411
‘Aiea, Hawaii 96701
Lemont, Illinois 60439
Oak Forest, Illinois 60452
Springfield, Illinois 62702-3749
Indianapolis, Indiana 46290
New Albany, Indiana 47150-3620
Lenexa, Kansas 66215
Edgewood, Kentucky 41017-3415
Metairie, Louisiana 70006-2940
New Orleans, Louisiana 70121
Baltimore, Maryland 21209
Baltimore, Maryland 21287
Chevy Chase, Maryland 20815
Hagerstown, Maryland 21740
Boston, Massachusetts 02114
Grand Blanc, Michigan 48439
Royal Oak, Michigan 48073
Edina, Minnesota 55435
Rochester, Minnesota 55905
St Louis, Missouri 46214
Reno, Nevada 89502
Albuquerque, New Mexico 87109
Liverpool, New York 13088
Durham, North Carolina 27705
Winston-Salem, North Carolina 27157
Cleveland, Ohio 44130
Cleveland, Ohio 44195
Edmond, Oklahoma 73013
Eugene, Oregon 97401
Portland, Oregon 97221
Erie, Pennsylvania 16507
Monroeville, Pennsylvania 15146
Site Coordinator
(412) 683-5300
Philadelphia, Pennsylvania 19107
Ladson, South Carolina 29456
Rapid City, South Dakota 57701
Germantown, Tennessee 38138
Abilene, Texas 79606-1224
Austin, Texas 78705
Austin, Texas 78705
Austin, Texas 78750-2298
Beaumont, Texas 77707
Bellaire, Texas 77401
Dallas, Texas 75231
Fort Worth, Texas 76104
San Antonio, Texas 78240
Southlake, Texas 76092
The Woodlands, Texas 77384
Salt Lake City, Utah 84107
Salt Lake City, Utah 84132
Norfolk, Virginia 23502
Silverdale, Washington 98383
More Details
- NCT ID
- NCT04704921
- Status
- Recruiting
- Sponsor
- AbbVie
Detailed Description
This randomized, partially masked, active-controlled, Phase 2b/3 clinical study will evaluate the efficacy and safety of ABBV-RGX-314 gene therapy in participants with nAMD. The study will evaluate 2 dose levels of ABBV-RGX-314 relative to an active comparator. The primary endpoint of this study is the mean change from baseline in best-corrected visual acuity (BCVA) of ABBV-RGX-314 relative to ranibizumab at Week 54. Approximately 630 participants who meet the inclusion/exclusion criteria, will be enrolled into one of 3 arms. A bilateral treatment substudy conducted at US sites is an open-label, partially randomized, parallel arm study to evaluate the safety and efficacy of subretinal ABBV-RGX-314 administered bilaterally in participants who have bilateral nAMD. Previously treated crossover participants from the control arm of the main study who crossed over and received ABBV-RGX-314 in the study eye will receive the same ABBV-RGX-314 dose in the contralateral eye (ie, same dose as in the study eye), and newcomers (participants who have not been randomized in an ABBV-RGX-314 study) and untreated crossover participants (ongoing control participants in the main study who have completed Week 54 but have not crossed over to receive ABBV-RGX-314 in the main study) will be randomized in a 2:1 ratio to receive ABBV-RGX-314 Dose 1 or ABBV-RGX-314 Dose 2 in both eyes. Up to 15 participants who qualify for the substudy will be enrolled and followed for a minimum of 50 weeks.