PMID- 37499181 OWN - NLM STAT- MEDLINE DCOM- 20230911 LR - 20231003 IS - 1708-8283 (Electronic) IS - 0883-0738 (Print) IS - 0883-0738 (Linking) VI - 38 IP - 8-9 DP - 2023 Aug TI - Exploration of Gross Motor Function in Aicardi-Goutieres Syndrome. PG - 518-527 LID - 10.1177/08830738231188753 [doi] AB - Background: Aicardi-Goutieres syndrome (AGS) is a rare genetic disorder characterized by a spectrum of motor abilities. While the Aicardi-Goutieres syndrome severity score favors severely impacted individuals, there is an unmet need to define tools measuring function across the Aicardi-Goutieres syndrome spectrum as potential outcome assessments for future clinical trials. Methods: Gross Motor Function Measure-88 (GMFM-88) and AGS Severity Scale were administered in individuals affected by Aicardi-Goutieres syndrome (n = 71). We characterized the performance variability by genotype. Derived versions of the GMFM-88, including the GMFM-66, GMFM-66 item set (GMFM-66IS), and GMFM-66 Basal&Ceiling (GMFM-66BC) were calculated. The Aicardi-Goutieres syndrome cohort was divided into severe (AGS Severity Scale score <4) or attenuated (>/=4). Performance on the AGS Severity Scale highly correlated with total GMFM-88 scores (Spearman Correlation: R = 0.91). To assess variability of the GMFM-88 within genotypic subcohorts, interquartile ranges (IQRs) were compared. Results: GMFM-88 performance in the TREX1 cohort had least variability while the SAMHD1 cohort had the largest IQR (4.23 vs 81.8). Floor effect was prominent, with most evaluations scoring below 20% (n = 46, 64.79%), particularly in TREX1- and RNASEH2-cohorts. Performance by the GMFM-66, GMFM-66IS, and GMFM-66BC highly correlated with the full GMFM-88. The Aicardi-Goutieres syndrome population represents a broad range of gross motor skills. Conclusions: This work identified the GMFM-88 as a potential clinical outcome assessment in subsets of the Aicardi-Goutieres syndrome population but underscores the need for additional validation of outcome measures reflective of the diverse gross motor function observed in this population, including low motor function. When time is limited by resources or patient endurance, shorter versions of the GMFM-88 may be a reasonable alternative. FAU - Gavazzi, Francesco AU - Gavazzi F AUID- ORCID: 0000-0002-4908-8395 AD - Division of Neurology, Children's Hospital of Philadelphia, Philadelphia, PA, USA. AD - Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy. FAU - Glanzman, Allan M AU - Glanzman AM AD - Department of Physical Therapy, Children's Hospital of Philadelphia, Philadelphia, PA, USA. FAU - Woidill, Sarah AU - Woidill S AD - Division of Neurology, Children's Hospital of Philadelphia, Philadelphia, PA, USA. FAU - Formanowski, Brielle AU - Formanowski B AD - Division of Neonatology, Children's Hospital of Philadelphia, Philadelphia, PA, USA. FAU - Dixit, Agrani AU - Dixit A AD - Division of Neurology, Children's Hospital of Philadelphia, Philadelphia, PA, USA. FAU - Isaacs, David AU - Isaacs D AD - Division of Neurology, Children's Hospital of Philadelphia, Philadelphia, PA, USA. FAU - Kornafel, Tracy AU - Kornafel T AD - Department of Physical Therapy, Children's Hospital of Philadelphia, Philadelphia, PA, USA. FAU - Ballance, Elizabeth AU - Ballance E AUID- ORCID: 0000-0002-6742-6992 AD - Department of Physical Therapy, Children's Hospital of Philadelphia, Philadelphia, PA, USA. FAU - Pierce, Samuel R AU - Pierce SR AD - Department of Physical Therapy, Children's Hospital of Philadelphia, Philadelphia, PA, USA. FAU - Modesti, Nicholson AU - Modesti N AD - Division of Neurology, Children's Hospital of Philadelphia, Philadelphia, PA, USA. FAU - Barcelos, Isabella AU - Barcelos I AD - Division of Neurology, Children's Hospital of Philadelphia, Philadelphia, PA, USA. FAU - Cusack, Stacy V AU - Cusack SV AD - Department of Occupational Therapy, Children's Hospital of Philadelphia, Philadelphia, PA, USA. FAU - Jan, Amanda K AU - Jan AK AD - Division of Neurology, Children's Hospital of Philadelphia, Philadelphia, PA, USA. FAU - Flores, Zaida AU - Flores Z AD - Division of Neurology, Children's Hospital of Philadelphia, Philadelphia, PA, USA. FAU - Sherbini, Omar AU - Sherbini O AD - Division of Neurology, Children's Hospital of Philadelphia, Philadelphia, PA, USA. FAU - Vincent, Ariel AU - Vincent A AD - Division of Neurology, Children's Hospital of Philadelphia, Philadelphia, PA, USA. FAU - D'Aiello, Russell AU - D'Aiello R AD - Department of Biomedical & Health Informatics, Children's Hospital of Philadelphia, Philadelphia, PA, USA. FAU - Lorch, Scott A AU - Lorch SA AD - Division of Neonatology, Children's Hospital of Philadelphia, Philadelphia, PA, USA. FAU - DeMauro, Sara B AU - DeMauro SB AD - Division of Neonatology, Children's Hospital of Philadelphia, Philadelphia, PA, USA. FAU - Jawad, Abbas AU - Jawad A AD - Department of Pediatrics, Children's Hospital of Philadelphia, Philadelphia, PA, USA. FAU - Vanderver, Adeline AU - Vanderver A AD - Division of Neurology, Children's Hospital of Philadelphia, Philadelphia, PA, USA. AD - Department of Neurology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA. FAU - Adang, Laura AU - Adang L AD - Division of Neurology, Children's Hospital of Philadelphia, Philadelphia, PA, USA. AD - Department of Neurology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA. LA - eng GR - K23 NS114113/NS/NINDS NIH HHS/United States GR - U01 NS106845/NS/NINDS NIH HHS/United States GR - U54 NS115052/NS/NINDS NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20230727 PL - United States TA - J Child Neurol JT - Journal of child neurology JID - 8606714 RN - Aicardi-Goutieres syndrome SB - IM MH - Humans MH - *Nervous System Malformations/genetics MH - *Autoimmune Diseases of the Nervous System/genetics MH - Genotype MH - Mutation PMC - PMC10530058 MID - NIHMS1914738 OTO - NOTNLM OT - Aicardi-Goutieres syndrome OT - GMFM-88 OT - gross motor function OT - outcome measures COIS- Conflicts of interest: AV receives grant and in-kind support for research from Eli Lilly, Gilead, Takeda, Illumina, Biogen, Homology, Ionis, Passage Bio, Orchard Therapeutics. AV serves on the scientific advisory boards of the European Leukodystrophy Association and the United Leukodystrophy Foundation, as well as in an unpaid capacity for Takeda, Ionis, Biogen and Illumina. LA is a consultant for Takeda, Biogen, and Orchard Therapeutics. The AGS scale is copyrighted by the Children's Hospital of Philadelphia. EDAT- 2023/07/27 19:10 MHDA- 2023/09/11 06:42 PMCR- 2023/09/27 CRDT- 2023/07/27 16:03 PHST- 2023/09/11 06:42 [medline] PHST- 2023/07/27 19:10 [pubmed] PHST- 2023/07/27 16:03 [entrez] PHST- 2023/09/27 00:00 [pmc-release] AID - 10.1177/08830738231188753 [doi] PST - ppublish SO - J Child Neurol. 2023 Aug;38(8-9):518-527. doi: 10.1177/08830738231188753. Epub 2023 Jul 27.