Natural History Study of CEP290-Related Retinal Degeneration
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The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. |
ClinicalTrials.gov Identifier: NCT03396042 |
Recruitment Status :
Completed
First Posted : January 10, 2018
Last Update Posted : May 19, 2022
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Condition or disease |
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Blindness Leber Congenital Amaurosis 10 Vision Disorders Eye Diseases Eye Diseases, Hereditary Eye Disorders Congenital Retinal Disease Retinal Degeneration |
Study Type : | Observational |
Actual Enrollment : | 26 participants |
Observational Model: | Cohort |
Time Perspective: | Prospective |
Official Title: | Natural History Study of CEP290-Related Retinal Degeneration |
Actual Study Start Date : | December 17, 2017 |
Actual Primary Completion Date : | May 6, 2022 |
Actual Study Completion Date : | May 6, 2022 |

Group/Cohort |
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Group 1
5 Patient target, ages 3 to 5 yr, with visual acuity Light Perception (LP) to <=20/200
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Group 2
5 Patient target, ages 3 to 5 yr, with visual acuity >20/200 to <=20/50
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Group 3
5 Patient target, ages 6 to 11 yr, with visual acuity LP to <=20/200
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Group 4
5 Patient target, ages 6 to 11 yr, with visual acuity >20/200 to <=20/50
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Group 5
5 Patient target, ages 12 to 17 yr, with visual acuity LP to <=20/200
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Group 6
5 Patient target, ages 12 to 17 yr, with visual acuity >20/200 to <=20/50
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Group 7
5 Patient target, ages 18yr and older, with visual acuity LP to <=20/200
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Group 8
5 Patient target, ages 18yr and older, with visual acuity >20/200 to <=20/50
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- Characterize CEP290-related retinal degeneration [ Time Frame: Through 12 months ]To prospectively characterize CEP290-related retinal degeneration and the clinical phenotype of patients with either compound heterozygous or homozygous intron 26 c.2991+1655A>G mutations
Biospecimen Retention: Samples With DNA

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.
Ages Eligible for Study: | 3 Years to 99 Years (Child, Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Sampling Method: | Non-Probability Sample |
Inclusion Criteria:
- Patient and/or parent/legal guardian must complete/sign an informed consent form (ICF). If required on a per patient basis, provisions can be made for alternative forms of consent (eg, witnessed consent). Where required by the IRB/IEC, minors must also verbalize or sign a confirmation of assent.
- At least 3 years of age at screening.
- Has abnormally decreased vision, defined as having light perception to 20/50 visual acuity in each eye, with examination and test results consistent with an inherited retinal degeneration due to mutations in the CEP290 gene.
- Has CEP290-related retinal degeneration caused by a compound heterozygous or homozygous intron 26 c.2991+1655A>G mutation (ie, 1 or 2 copies of the intron 26 c.2991+1655A>G mutation) confirmed by deoxyribonucleic acid sequencing.
- Has ability to cooperate with assessments relative to age.
- Has clear ocular media and adequate pupil dilation in at least 1 eye, to permit good quality fundus examination and optical coherence tomography (OCT) imaging.
Exclusion Criteria:
- Has history or current evidence of a medical condition (systemic or ophthalmic disease, metabolic dysfunction, physical examination finding, or clinical laboratory finding) that may, in the opinion of the Investigator, preclude adherence to the scheduled study visits, safe participation in the study, or affect the results of the study (eg, uncontrolled systemic hypertension, autoimmune disease, advanced coronary artery disease, or cerebral vascular disease, other unstable or progressive cardiovascular, pulmonary, Parkinson's, liver or renal disease, cancer, or dementia).
- Has history or current evidence of ocular disease in either eye that, in the opinion of the Investigator, may confound assessment of this inherited retinal disease or the assessments utilized herein (eg, glaucoma, age-related macular degeneration, diabetic retinopathy, uveitis, or the presence of any condition that precludes adequate visualization of the fundus such as dense cataracts or corneal scarring).
- Achieves a passing score for the Visual Function Navigation Test at the maximum level of difficulty (ie, passes the most challenging Visual Function Navigation Test under the dimmest lighting conditions) with each eye independently and both eyes together.
- Is currently receiving gene therapy and/or has received gene therapy.
- Is currently enrolled in an investigational or interventional drug or device study and/or has participated in such a study within 30 days of Screening.

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT03396042
United States, Florida | |
Bascom Palmer Eye Institute | |
Miami, Florida, United States, 33136 | |
United States, Massachusetts | |
Massachusetts Eye and Ear Infirmary | |
Boston, Massachusetts, United States, 02114 | |
United States, Michigan | |
W.K. Kellogg Eye Center | |
Ann Arbor, Michigan, United States, 48105 | |
United States, Oregon | |
Casey Eye Institute - OHSU | |
Portland, Oregon, United States, 97239 | |
France | |
Universite Pierre et Marie Curie | |
Paris, France, 75252 | |
Germany | |
Universitaetsklinikum Giessen and Marburg GmbH | |
Giessen, Germany, 35392 | |
Netherlands | |
Radboud Universitair Medisch Centrum | |
Nijmegen, Gelderland, Netherlands, 6525 |
Responsible Party: | Editas Medicine, Inc. |
ClinicalTrials.gov Identifier: | NCT03396042 |
Other Study ID Numbers: |
EDIT-NHS01 |
First Posted: | January 10, 2018 Key Record Dates |
Last Update Posted: | May 19, 2022 |
Last Verified: | May 2022 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |
Studies a U.S. FDA-regulated Drug Product: | No |
Studies a U.S. FDA-regulated Device Product: | No |
CEP290 LCA10 Retinal degenerative diseases (RDD) Leber congenital amaurosis (LCA) Congenital Retinal Blindness p.Cys998X |
c.2991+1655A>G Eye Diseases Signs and Symptoms Genetic Diseases, Inborn Congenital Abnormalities Eye Abnormalities |
Blindness Vision Disorders Eye Diseases Retinal Diseases Retinal Degeneration Leber Congenital Amaurosis Eye Diseases, Hereditary Eye Abnormalities |
Genetic Diseases, Inborn Disease Pathologic Processes Sensation Disorders Neurologic Manifestations Nervous System Diseases Congenital Abnormalities |