Evidence map›Paper›PMID 21911650›Full record

ArticleArchives of ophthalmology (Chicago, Ill. : 1960)2012

Gene therapy for leber congenital amaurosis caused by RPE65 mutations: safety and efficacy in 15 children and adults followed up to 3 years.

Samuel G Jacobson, Artur V Cideciyan, Ramakrishna Ratnakaram, Elise Heon, Sharon B Schwartz, Alejandro J Roman, Marc C Peden, Tomas S Aleman, Sanford L Boye, Alexander Sumaroka and 14 more

2 registry-linked trialsOpen access · greenAbstract readClinical Trial, Phase IControlled Clinical TrialMulticenter Study
In one paragraph

Article in Archives of ophthalmology (Chicago, Ill. : 1960), 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 366 papers, 7 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
366citing papers in PubMed, 7 pooled it
22.0field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT00481546 phase1completednot on this map

Phase I Trial of Ocular Subretinal Injection of a Recombinant Adeno-Associated Virus (rAAV2-CBSB-hRPE65) Gene Vector to Patients With Retinal Disease Due to RPE65 Mutations (Clinical Trials of Gene Therapy for Leber Congenital Amaurosis)

TypeinterventionalSponsorUniversity of PennsylvaniaRan2007 to 2016Enrolled15ConditionsAmaurosis of Leber, Retinal DiseasesArmsrAAV2-CBSB-hRPE65
NCT01878032 completednot on this mapstarted 2013, after this paper: background citation

Color Vision as an Outcome Measure for Clinical Trials of Inherited Retinal Degenerations

TypeobservationalSponsorNational Eye Institute (NEI)Ran2013 to 2017Enrolled166ConditionsHealthy Volunteer, Retinal Disease, Inherited Retinal Degeneration
3 · Its place in the literature

Who cites it

366 citing papers in PubMed, 7 syntheses or guidelines pooled it, 631 citations in OpenAlex.

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306 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

24 authors at 1 institution in 1 country.

Samuel G JacobsonScheie Eye Institute, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, USA. jacobsos@mail.med.upenn.edu
Artur V Cideciyan
Ramakrishna Ratnakaram
Elise Heon
Sharon B Schwartz
Alejandro J Roman
Marc C Peden
Tomas S Aleman
Sanford L Boye
Alexander Sumaroka
Thomas J Conlon
Roberto Calcedo
Ji-Jing Pang
Kirsten E Erger
Melani B Olivares
Cristina L Mullins
Malgorzata Swider
Shalesh Kaushal
William J Feuer
Alessandro Iannaccone
Gerald A Fishman
Edwin M Stone
Barry J Byrne
William W Hauswirth
Penn Presbyterian Medical Center · US

Funding

Clinical Trials of Gene Therapy for Leber Congenital AmaurosisU10EY017280 · NEI · UNIVERSITY OF PENNSYLVANIA · PI JACOBSON, SAMUEL GREGORY · 2006 to 2014
$9.8M
Vision Research CoreP30EY021721 · NEI · UNIVERSITY OF FLORIDA · PI HAUSWIRTH, WILLIAM W · 2011 to 2015
$2.8M
NEI NIH HHS P30 EY021721NEI NIH HHS U10 EY017280NEI NIH HHS U10EY017280
6 · The paper itself

Abstract

objectiveTo determine the safety and efficacy of subretinal gene therapy in the RPE65 form of Leber congenital amaurosis using recombinant adeno-associated virus 2 (rAAV2) carrying the RPE65 gene.

designOpen-label, dose-escalation phase I study of 15 patients (range, 11-30 years of age) evaluated after subretinal injection of the rAAV2- RPE65 vector into the worse-functioning eye. Five cohorts represented 4 dose levels and 2 different injection strategies.

main outcome measuresPrimary outcomes were systemic and ocular safety. Secondary outcomes assayed visual function with dark-adapted full-field sensitivity testing and visual acuity with Early Treatment Diabetic Retinopathy Study charts. Further assays included immune responses to the vector, static visual fields, pupillometry, mobility performance, and optical coherence tomography.

resultsNo systemic toxicity was detected; ocular adverse events were related to surgery. Visual function improved in all patients to different degrees; improvements were localized to treated areas. Cone and rod sensitivities increased significantly in the study eyes but not in the control eyes. Minor acuity improvements were recorded in many study and control eyes. Major acuity improvements occurred in study eyes with the lowest entry acuities and parafoveal fixation loci treated with subretinal injections. Other patients with better foveal structure lost retinal thickness and acuity after subfoveal injections.

conclusionsGene therapy for Leber congenital amaurosis caused by RPE65 mutations is sufficiently safe and substantially efficacious in the extrafoveal retina. There is no benefit and some risk in treating the fovea. No evidence of age-dependent effects was found. Our results point to specific treatment strategies for subsequent phases. APPLICATION TO CLINICAL PRACTICE: Gene therapy for inherited retinal disease has the potential to become a future part of clinical practice.

trial registrationclinicaltrials.gov Identifier: NCT00481546.

Indexed as

MutationAdolescentAdultCarrier ProteinsChildcis-trans-IsomerasesDependovirusEye ProteinsFemaleFollow-Up StudiesGenetic TherapyGenetic VectorsHumansInjections, IntraocularLeber Congenital AmaurosisMaleCarrier Proteinscis-trans-IsomerasesEye ProteinsRetinoid Isomerohydrolase

Identifiers

PMID21911650
PMCPMC3600816
OpenAlexW2152853777

What OpenQuestion holds

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Read underepoch 390

Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.