| Title: |
XOLARIS: A 24-Month, Prospective, Natural History Study of 201 Participants with Retinitis Pigmentosa GTPase Regulator-Associated X-Linked Retinitis Pigmentosa |
| Authors: |
MacLaren, Robert E; Duncan, Jacque L; Fischer, M Dominik; Lam, Byron L; Meunier, Isabelle; Pennesi, Mark E; Sankila, Eeva-Marja K; Gow, James A; Li, Jiang; Tsang, So-Fai; Group, XOLARIS Study; Gregory-Evans, Kevin; Koenekoop, Robert; Bygglin, Henrik; Seitsonen, Sanna; Riikonen, Antti; Ochakovski, Alex; Stingl, Katarina; Vaheb, Yousof; Richter, Paul; Wozar, Fabian; Reichel, Felix; Gassel, Caroline; Wolfram, Lasse; Fischer, Nora; Peters, Tobias; Wilhelm, Barbara; Seitz, Immanuel; Holz, Frank; Reinking, Katharina; Clemens, Amelie; Völker, Desiree; Herrmann, Philipp; Birtel, Johannes; Schipper, Pascal; Weber, Constance; Bulirsch, Louisa; Hoyng, Carel; Klaver, Caroline; Phan, TML; Van Huet, Ramon; Boon, Camiel; Nguyen, XT; Talib, M; Trzcionkowska, Kasia; Tussenbroek, Thomas; Taylor, Laura J; Cehajic-Kapetanovic, Jasmina; Josan, Amandeep S; Yusuf, Imran H; Jasani, Kirti; Menghini, Moreno; Nanda, Anika; Rehman, Salwah; Jolly, Jasleen K; Buckley, Thomas MW; Lotery, Andrew; Thulsidharan, Suresh; Khandhadia, Samir; Tsokolas, Georgios; Black, Graeme; Megaw, Roly; Bishop, Paul; Mukherjee, Rajarshi; Mohla, Aditi; McKibbin, Martin; Mukherjee, Raj; Mendoza-Santiesteban, Carlos; Horowitz, Jason; Tsang, Stephen; Yang, Paul; Lauer, Andreas K; Weleber, Richard G; Birch, David; Coors, Lori; Spencer, Rand; Csaky, Karl; Anand, Rajiv; Wang, Yi-Zhong; Gorin, Michael; Stepien, Kimberly; Stewart, Jay; Moore, Anthony; Stout, J Timothy; Weng, Christina; Leung, Ella; Schlle, Tahira; Bakall, Benjamin; Klein, Kendra; Bernstein, Paul; Hartnett, Mary Elizabeth; Mathias, Marc; Siringo, Frank |
| Source: |
Ophthalmology Science, vol 5, iss 1 |
| Publisher Information: |
eScholarship, University of California |
| Publication Year: |
2025 |
| Collection: |
University of California: eScholarship |
| Subject Terms: |
32 Biomedical and Clinical Sciences (for-2020); 3212 Ophthalmology and Optometry (for-2020); Neurodegenerative (rcdc); Neurosciences (rcdc); Rare Diseases (rcdc); Eye Disease and Disorders of Vision (rcdc); Eye (hrcs-hc); Natural history observational study; X-linked retinitis pigmentosa; XOLARIS; XOLARIS Study Group |
| Description: |
Objective: To improve the understanding of the natural disease progression of retinitis pigmentosa GTPase regulator (RPGR)-associated X-linked retinitis pigmentosa (XLRP). Design: A multicenter, prospective, observational natural history study over 24 months. Participants: Male participants aged ≥7 years with a pathogenic variant in the RPGR gene, a best-corrected visual acuity (BCVA) score of ≥34 ETDRS letters, and a mean 68-loci retinal sensitivity (assessed by microperimetry) of 0.1 to 20 decibels (dB). Methods: Participants were divided into subgroups based on their BCVA score at baseline: 34 to 73 (lower BCVA) or ≥74 (higher BCVA) ETDRS letters. There were 7 visits over 24 months. Main Outcome Measures: Change from baseline in BCVA, retinal sensitivity, low luminance visual acuity (LLVA), fixation stability, contrast sensitivity, visual field, anatomical measures, 25-item Visual Function Questionnaire (VFQ-25), intraocular pressure, and adverse events (AEs). Results: Overall, 201 participants were included. The mean (standard deviation [SD]) age was 30.3 (11.9) years in the lower BCVA subgroup (n=170) and 27.7 (10.1) years in the higher BCVA subgroup (n=31). The study eye baseline mean (SD) BCVA scores were 59.4 (10.30) and 77.3 (3.95) in the lower and higher BCVA subgroups, respectively; the lower BCVA subgroup had lower retinal sensitivity in the study eye at baseline than the higher BCVA subgroup. Over 24 months, there were small observed changes in BCVA, retinal sensitivity, LLVA, fixation, contrast sensitivity, and fundus photography findings. There were observed mean (SD) changes at 24 months in the lower and higher BCVA subgroups of-1.01 (4.67) and 0.03 (5.83) dB-steradians in the volume of full-field hill of vision,-330.6 (869.51) and-122.7 (22.01) μm in distance from foveal center to the nearest border of preserved fundus autofluorescence,-104.3 (277.80) and-207.1 (171.01) μm in central ellipsoid width, and-2.8 (9.7) and-0.6 (7.6) in VFQ-25 composite score, respectively. There was 1 death from ... |
| Document Type: |
article in journal/newspaper |
| File Description: |
application/pdf |
| Language: |
unknown |
| Relation: |
qt9hs4p3v4; https://escholarship.org/uc/item/9hs4p3v4; https://escholarship.org/content/qt9hs4p3v4/qt9hs4p3v4.pdf |
| DOI: |
10.1016/j.xops.2024.100595 |
| Availability: |
https://escholarship.org/uc/item/9hs4p3v4; https://escholarship.org/content/qt9hs4p3v4/qt9hs4p3v4.pdf; https://doi.org/10.1016/j.xops.2024.100595 |
| Rights: |
CC-BY-NC-ND |
| Accession Number: |
edsbas.CCF99C8E |
| Database: |
BASE |