Progression of stargardt disease as determined by fundus autofluorescence in the retrospective progression of stargardt disease study (ProgStar report no. 9)

ProgStar Study Group

Research output: Contribution to journalArticle

Abstract

IMPORTANCE: Sensitive outcome measures for disease progression are needed for treatment trials of Stargardt disease. OBJECTIVE: To describe the yearly progression rate of atrophic lesions in the retrospective Progression of Stargardt Disease study. DESIGN, SETTING, AND PARTICIPANTS: A multicenter retrospective cohort study was conducted at tertiary referral centers in the United States and Europe. A total of 251 patients aged 6 years or older at baseline, harboring disease-causing variants in ABCA4 (OMIM 601691), enrolled in the study from 9 centers between August 2, 2013, and December 12, 2014; of these patients, 215 had at least 2 gradable fundus autofluorescence images with atrophic lesion(s) present in at least 1 eye. EXPOSURES Areas of definitely decreased autofluorescence (DDAF) and questionably decreased autofluorescence were quantified by a reading center. Progression rates were estimated from linear mixed models with time as the independent variable. MAIN OUTCOMES AND MEASURES: Yearly rate of progression using the growth of atrophic lesions measured by fundus autofluorescence. RESULTS: A total of 251 participants (458 study eyes) were enrolled. Images from 386 eyes of 215 participants (126 females and 89 males; mean [SD] age, 29.9 [14.7] years; mean [SD] age of onset of symptoms, 21.9 [13.3] years) showed atrophic lesions present on at least 2 visits and were graded for 2 (156 eyes), 3 (174 eyes), or 4 (57 eyes) visits. A subset of 224 eyes (123 female participants and 101 male participants; mean [SD] age, 33.0 [15.1] years) had areas of DDAF present on at least 2 visits; these eyes were included in the estimation of the progression of the area of DDAF. At the first visit, DDAF was present in 224 eyes (58.0%), with a mean (SD) lesion size of 2.2 (2.7) mm2. The total mean (SD) area of decreased autofluorescence (DDAF and questionably decreased autofluorescence) at first visit was 2.6 (2.8) mm2. Mean progression of DDAF was 0.51 mm2/y (95% CI, 0.42-0.61 mm2/y), and of total decreased fundus autofluorescence was 0.35 mm2/y (95% CI, 0.28-0.43 mm2/y). Rates of progression depended on the initial size of the lesion. CONCLUSIONS AND RELEVANCE: In Stargardt disease with DDAF lesions, fundus autofluorescence may serve as a monitoring tool for interventional clinical trials that aim to slow disease progression. Rates of progression depended mainly on initial lesion size.

Original languageEnglish (US)
Pages (from-to)1232-1241
Number of pages10
JournalJAMA Ophthalmology
Volume135
Issue number11
DOIs
StatePublished - Nov 1 2017

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Disease Progression
Genetic Databases
Stargardt disease 1
Age of Onset
Tertiary Care Centers
Reading
Linear Models
Cohort Studies
Retrospective Studies
Outcome Assessment (Health Care)
Clinical Trials
Growth
Therapeutics

ASJC Scopus subject areas

  • Ophthalmology

Cite this

Progression of stargardt disease as determined by fundus autofluorescence in the retrospective progression of stargardt disease study (ProgStar report no. 9). / ProgStar Study Group.

In: JAMA Ophthalmology, Vol. 135, No. 11, 01.11.2017, p. 1232-1241.

Research output: Contribution to journalArticle

@article{59e9254cc0634a78982ed0cda4d746ca,
title = "Progression of stargardt disease as determined by fundus autofluorescence in the retrospective progression of stargardt disease study (ProgStar report no. 9)",
abstract = "IMPORTANCE: Sensitive outcome measures for disease progression are needed for treatment trials of Stargardt disease. OBJECTIVE: To describe the yearly progression rate of atrophic lesions in the retrospective Progression of Stargardt Disease study. DESIGN, SETTING, AND PARTICIPANTS: A multicenter retrospective cohort study was conducted at tertiary referral centers in the United States and Europe. A total of 251 patients aged 6 years or older at baseline, harboring disease-causing variants in ABCA4 (OMIM 601691), enrolled in the study from 9 centers between August 2, 2013, and December 12, 2014; of these patients, 215 had at least 2 gradable fundus autofluorescence images with atrophic lesion(s) present in at least 1 eye. EXPOSURES Areas of definitely decreased autofluorescence (DDAF) and questionably decreased autofluorescence were quantified by a reading center. Progression rates were estimated from linear mixed models with time as the independent variable. MAIN OUTCOMES AND MEASURES: Yearly rate of progression using the growth of atrophic lesions measured by fundus autofluorescence. RESULTS: A total of 251 participants (458 study eyes) were enrolled. Images from 386 eyes of 215 participants (126 females and 89 males; mean [SD] age, 29.9 [14.7] years; mean [SD] age of onset of symptoms, 21.9 [13.3] years) showed atrophic lesions present on at least 2 visits and were graded for 2 (156 eyes), 3 (174 eyes), or 4 (57 eyes) visits. A subset of 224 eyes (123 female participants and 101 male participants; mean [SD] age, 33.0 [15.1] years) had areas of DDAF present on at least 2 visits; these eyes were included in the estimation of the progression of the area of DDAF. At the first visit, DDAF was present in 224 eyes (58.0{\%}), with a mean (SD) lesion size of 2.2 (2.7) mm2. The total mean (SD) area of decreased autofluorescence (DDAF and questionably decreased autofluorescence) at first visit was 2.6 (2.8) mm2. Mean progression of DDAF was 0.51 mm2/y (95{\%} CI, 0.42-0.61 mm2/y), and of total decreased fundus autofluorescence was 0.35 mm2/y (95{\%} CI, 0.28-0.43 mm2/y). Rates of progression depended on the initial size of the lesion. CONCLUSIONS AND RELEVANCE: In Stargardt disease with DDAF lesions, fundus autofluorescence may serve as a monitoring tool for interventional clinical trials that aim to slow disease progression. Rates of progression depended mainly on initial lesion size.",
author = "{ProgStar Study Group} and Strauss, {Rupert W.} and Beatriz Munoz and Alexander Ho and Anamika Jha and Michel Michaelides and Cideciyan, {Artur V.} and Isabelle Audo and Birch, {David G.} and Hariri, {Amir H.} and Nittala, {Muneeswar G.} and Sadda, {Srini Vas} and West, {Sheila K} and Scholl, {Hendrik P.N.}",
year = "2017",
month = "11",
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doi = "10.1001/jamaophthalmol.2017.4152",
language = "English (US)",
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T1 - Progression of stargardt disease as determined by fundus autofluorescence in the retrospective progression of stargardt disease study (ProgStar report no. 9)

AU - ProgStar Study Group

AU - Strauss, Rupert W.

AU - Munoz, Beatriz

AU - Ho, Alexander

AU - Jha, Anamika

AU - Michaelides, Michel

AU - Cideciyan, Artur V.

AU - Audo, Isabelle

AU - Birch, David G.

AU - Hariri, Amir H.

AU - Nittala, Muneeswar G.

AU - Sadda, Srini Vas

AU - West, Sheila K

AU - Scholl, Hendrik P.N.

PY - 2017/11/1

Y1 - 2017/11/1

N2 - IMPORTANCE: Sensitive outcome measures for disease progression are needed for treatment trials of Stargardt disease. OBJECTIVE: To describe the yearly progression rate of atrophic lesions in the retrospective Progression of Stargardt Disease study. DESIGN, SETTING, AND PARTICIPANTS: A multicenter retrospective cohort study was conducted at tertiary referral centers in the United States and Europe. A total of 251 patients aged 6 years or older at baseline, harboring disease-causing variants in ABCA4 (OMIM 601691), enrolled in the study from 9 centers between August 2, 2013, and December 12, 2014; of these patients, 215 had at least 2 gradable fundus autofluorescence images with atrophic lesion(s) present in at least 1 eye. EXPOSURES Areas of definitely decreased autofluorescence (DDAF) and questionably decreased autofluorescence were quantified by a reading center. Progression rates were estimated from linear mixed models with time as the independent variable. MAIN OUTCOMES AND MEASURES: Yearly rate of progression using the growth of atrophic lesions measured by fundus autofluorescence. RESULTS: A total of 251 participants (458 study eyes) were enrolled. Images from 386 eyes of 215 participants (126 females and 89 males; mean [SD] age, 29.9 [14.7] years; mean [SD] age of onset of symptoms, 21.9 [13.3] years) showed atrophic lesions present on at least 2 visits and were graded for 2 (156 eyes), 3 (174 eyes), or 4 (57 eyes) visits. A subset of 224 eyes (123 female participants and 101 male participants; mean [SD] age, 33.0 [15.1] years) had areas of DDAF present on at least 2 visits; these eyes were included in the estimation of the progression of the area of DDAF. At the first visit, DDAF was present in 224 eyes (58.0%), with a mean (SD) lesion size of 2.2 (2.7) mm2. The total mean (SD) area of decreased autofluorescence (DDAF and questionably decreased autofluorescence) at first visit was 2.6 (2.8) mm2. Mean progression of DDAF was 0.51 mm2/y (95% CI, 0.42-0.61 mm2/y), and of total decreased fundus autofluorescence was 0.35 mm2/y (95% CI, 0.28-0.43 mm2/y). Rates of progression depended on the initial size of the lesion. CONCLUSIONS AND RELEVANCE: In Stargardt disease with DDAF lesions, fundus autofluorescence may serve as a monitoring tool for interventional clinical trials that aim to slow disease progression. Rates of progression depended mainly on initial lesion size.

AB - IMPORTANCE: Sensitive outcome measures for disease progression are needed for treatment trials of Stargardt disease. OBJECTIVE: To describe the yearly progression rate of atrophic lesions in the retrospective Progression of Stargardt Disease study. DESIGN, SETTING, AND PARTICIPANTS: A multicenter retrospective cohort study was conducted at tertiary referral centers in the United States and Europe. A total of 251 patients aged 6 years or older at baseline, harboring disease-causing variants in ABCA4 (OMIM 601691), enrolled in the study from 9 centers between August 2, 2013, and December 12, 2014; of these patients, 215 had at least 2 gradable fundus autofluorescence images with atrophic lesion(s) present in at least 1 eye. EXPOSURES Areas of definitely decreased autofluorescence (DDAF) and questionably decreased autofluorescence were quantified by a reading center. Progression rates were estimated from linear mixed models with time as the independent variable. MAIN OUTCOMES AND MEASURES: Yearly rate of progression using the growth of atrophic lesions measured by fundus autofluorescence. RESULTS: A total of 251 participants (458 study eyes) were enrolled. Images from 386 eyes of 215 participants (126 females and 89 males; mean [SD] age, 29.9 [14.7] years; mean [SD] age of onset of symptoms, 21.9 [13.3] years) showed atrophic lesions present on at least 2 visits and were graded for 2 (156 eyes), 3 (174 eyes), or 4 (57 eyes) visits. A subset of 224 eyes (123 female participants and 101 male participants; mean [SD] age, 33.0 [15.1] years) had areas of DDAF present on at least 2 visits; these eyes were included in the estimation of the progression of the area of DDAF. At the first visit, DDAF was present in 224 eyes (58.0%), with a mean (SD) lesion size of 2.2 (2.7) mm2. The total mean (SD) area of decreased autofluorescence (DDAF and questionably decreased autofluorescence) at first visit was 2.6 (2.8) mm2. Mean progression of DDAF was 0.51 mm2/y (95% CI, 0.42-0.61 mm2/y), and of total decreased fundus autofluorescence was 0.35 mm2/y (95% CI, 0.28-0.43 mm2/y). Rates of progression depended on the initial size of the lesion. CONCLUSIONS AND RELEVANCE: In Stargardt disease with DDAF lesions, fundus autofluorescence may serve as a monitoring tool for interventional clinical trials that aim to slow disease progression. Rates of progression depended mainly on initial lesion size.

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