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 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 5308655, Arizona 5551752 85053
Site Coordinator
602-222-2221
Sun City 5316201, Arizona 5551752 85351
Little Rock 4119403, Arkansas 4099753 72205
Beverly Hills 5328041, California 5332921 90211
Campbell 5333689, California 5332921 95008
Encino 5346649, California 5332921 91436
Fullerton 5351247, California 5332921 92835
Huntington Beach 5358705, California 5332921 92647
Mountain View 5375480, California 5332921 94040-4101
Pasadena 5381396, California 5332921 91105
Pasadena 5381396, California 5332921 91107
Poway 5384690, California 5332921 92064-2530
Sacramento 5389489, California 5332921 95825
San Francisco 5391959, California 5332921 94107
San Francisco 5391959, California 5332921 94143
Santa Ana 5392900, California 5332921 92705
Colorado Springs 5417598, Colorado 5417618 80909
Site Coordinator
(719) 473-9595
Durango 5420241, Colorado 5417618 81303
Lakewood 5427946, Colorado 5417618 80228
Deerfield Beach 4153071, Florida 4155751 33064-1342
Gainesville 4156404, Florida 4155751 32607
Lakeland 4161438, Florida 4155751 33805
Pensacola 4168228, Florida 4155751 32503
Site Coordinator
(850) 476-6759
St. Petersburg 4171563, Florida 4155751 33711-1141
Tallahassee 4174715, Florida 4155751 32308
Augusta 4180531, Georgia 4197000 30909
Marietta 4207783, Georgia 4197000 30060
Marietta 4207783, Georgia 4197000 30060
Sandy Springs 4221333, Georgia 4197000 30328-4411
‘Aiea 5856430, Hawaii 5855797 96701
Lemont 4899581, Illinois 4896861 60439
Oak Forest 4904286, Illinois 4896861 60452
Springfield 4250542, Illinois 4896861 62702-3749
Indianapolis 4259418, Indiana 4921868 46290
New Albany 4262045, Indiana 4921868 47150-3620
Lenexa 4274356, Kansas 4273857 66215
Edgewood 4290873, Kentucky 6254925 41017-3415
Metairie 4333177, Louisiana 4331987 70006-2940
New Orleans 4335045, Louisiana 4331987 70121
Baltimore 4347778, Maryland 4361885 21209
Baltimore 4347778, Maryland 4361885 21287
Chevy Chase 4351335, Maryland 4361885 20815
Hagerstown 4357141, Maryland 4361885 21740
Boston 4930956, Massachusetts 6254926 02114
Grand Blanc 4994320, Michigan 5001836 48439
Royal Oak 5007804, Michigan 5001836 48073
Edina 5025264, Minnesota 5037779 55435
Rochester 5043473, Minnesota 5037779 55905
St Louis 4407066, Missouri 4398678 46214
Reno 5511077, Nevada 5509151 89502
Albuquerque 5454711, New Mexico 5481136 87109
Liverpool 5124925, New York 5128638 13088
Durham 4464368, North Carolina 4482348 27705
Winston-Salem 4499612, North Carolina 4482348 27157
Cleveland 5150529, Ohio 5165418 44130
Cleveland 5150529, Ohio 5165418 44195
Edmond 4535740, Oklahoma 4544379 73013
Eugene 5725846, Oregon 5744337 97401
Portland 5746545, Oregon 5744337 97221
Erie 5188843, Pennsylvania 6254927 16507
Monroeville 5201734, Pennsylvania 6254927 15146
Site Coordinator
(412) 683-5300
Philadelphia 4560349, Pennsylvania 6254927 19107
Ladson 4584277, South Carolina 4597040 29456
Rapid City 5768233, South Dakota 5769223 57701
Germantown 4624601, Tennessee 4662168 38138
Abilene 4669635, Texas 4736286 79606-1224
Austin 4671654, Texas 4736286 78705
Austin 4671654, Texas 4736286 78705
Austin 4671654, Texas 4736286 78750-2298
Beaumont 4672989, Texas 4736286 77707
Bellaire 4673353, Texas 4736286 77401
Dallas 4684888, Texas 4736286 75231
Fort Worth 4691930, Texas 4736286 76104
San Antonio 4726206, Texas 4736286 78240
Southlake 4733313, Texas 4736286 76092
The Woodlands 4736476, Texas 4736286 77384
Salt Lake City 5780993, Utah 5549030 84107
Salt Lake City 5780993, Utah 5549030 84132
Norfolk 4776222, Virginia 6254928 23502
Silverdale 5810490, Washington 5815135 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.