Evidence map›Paper›PMID 35190816›Full record

ArticleBrain : a journal of neurology2022

Assessing the landscape of STXBP1-related disorders in 534 individuals.

Julie Xian, Shridhar Parthasarathy, Sarah M Ruggiero, Ganna Balagura, Eryn Fitch, Katherine Helbig, Jing Gan, Shiva Ganesan, Michael C Kaufman, Colin A Ellis and 44 more

Registry-linked trialOpen access · hybridAbstract read
In one paragraph

Article in Brain : a journal of neurology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06555965 (STXBP1 and SYNGAP1 Related Disorders), which is not on this map. Cited by 70 papers.

0numbers the graph read from it
0cells of the map it votes in
70citing papers in PubMed
6.3field-weighted citation impact, top 2% 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.

NCT06555965 recruitingnot on this mapstarted 2023, after this paper: background citation

STXBP1 and SYNGAP1 Related Disorders (RD) Natural History Study

TypeobservationalSponsorChildren's Hospital of PhiladelphiaRan2023 to 2028Enrolled600ConditionsGenetic Disease, STXBP1 Encephalopathy With Epilepsy, SYNGAP1-Related Intellectual DisabilityArmsNon-interventional study
3 · Its place in the literature

Who cites it

70 citing papers in PubMed, 116 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. CharacterizingmedRxiv : the preprint server for health sciences · 2026
    Article
  8. Article
  9. Molecular syndromology · 2026
    Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Visual Function Characteristics inJournal of clinical medicine · 2025
    Article
  19. Article
  20. Article

10 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

54 authors at 18 institutions in 10 countries.

Julie XianDivision of Neurology, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA.ORCID 0000-0002-0205-0648
Shridhar ParthasarathyDivision of Neurology, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA.
Sarah M RuggieroDivision of Neurology, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA.ORCID 0000-0002-0834-0750
Ganna BalaguraDepartment of Neurosciences, Rehabilitation, Ophthalmology, Genetics, and Maternal and Child Health, University of Genoa, Genoa, Italy.ORCID 0000-0003-0212-8318
Eryn FitchDivision of Neurology, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA.
Katherine HelbigDivision of Neurology, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA.ORCID 0000-0001-8249-0549
Jing GanDepartment of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, China.
Shiva GanesanDivision of Neurology, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA.
Michael C KaufmanDivision of Neurology, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA.ORCID 0000-0003-2718-296X
Colin A EllisThe Epilepsy NeuroGenetics Initiative (ENGIN), Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA.
David Lewis-SmithTranslational and Clinical Research Institute, Newcastle University, Newcastle-upon-Tyne NE2 4HH, UK.ORCID 0000-0002-1735-8178
Peter GalerDivision of Neurology, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA.
Kristin CunninghamDivision of Neurology, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA.
Margaret O'BrienDivision of Neurology, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA.
Mahgenn CosicoDivision of Neurology, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA.
Kate BakerMRC Cognition and Brain Sciences Unit, University of Cambridge, Cambridge, UK.
Alejandra DarlingPediatric Neurology Department, Hospital Sant Joan de Déu, University of Barcelona, Barcelona, Spain.
Fernanda Veiga de GoesDepartment of Pediatrics and Pediatric Neurology Laboratory, Instituto Fernandes Figueira, Rio de Janeiro 22250-020, Brazil.
Christelle M El AchkarDivision of Epilepsy and Clinical Neurophysiology and Epilepsy Genetics Program, Department of Neurology, Boston Children's Hospital, Boston, MA, USA.
Jan Henje DoeringDivision of Pediatric Epileptology, Centre for Pediatric and Adolescent Medicine, University Hospital Heidelberg, 69120 Heidelberg, Germany.
Francesca FuriaDepartment of Clinical Neurophysiology, Danish Epilepsy Center Filadelfia, Dianalund 4293, Denmark.
Ángeles García-CazorlaPediatric Neurology Department, Hospital Sant Joan de Déu, University of Barcelona, Barcelona, Spain.
Elena GardellaDepartment of Clinical Neurophysiology, Danish Epilepsy Center Filadelfia, Dianalund 4293, Denmark.ORCID 0000-0002-7138-6022
Lisa GeertjensDepartment of Child and Adolescent Psychiatry, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands.
Courtney KleinDepartments of Pediatrics and Neurology, Children's Hospital Colorado, Aurora, CO 80045, USA.
Anna Kolesnik-TaylorMRC Cognition and Brain Sciences Unit, University of Cambridge, Cambridge, UK.
Hanna LammertseDepartment of Human Genetics, Center for Neurogenomics and Cognitive Research (CNCR), Amsterdam University Medical Center, de Boelelaan 1085, 1081 HV Amsterdam, The Netherlands.
Jeehun LeeDepartment of Pediatrics, Samsung Medical Center, School of Medicine, Sungkyunkwan University, Seoul, Republic of Korea.
Alexandra MackieDepartments of Pediatrics and Neurology, Children's Hospital Colorado, Aurora, CO 80045, USA.
Mala Misra-IsrieDepartment of Human Genetics, Center for Neurogenomics and Cognitive Research (CNCR), Amsterdam University Medical Center, de Boelelaan 1085, 1081 HV Amsterdam, The Netherlands.
Heather OlsonDivision of Epilepsy and Clinical Neurophysiology and Epilepsy Genetics Program, Department of Neurology, Boston Children's Hospital, Boston, MA, USA.ORCID 0000-0002-5385-0119
Emma SextonDivision of Epilepsy and Clinical Neurophysiology and Epilepsy Genetics Program, Department of Neurology, Boston Children's Hospital, Boston, MA, USA.
Beth SheidleyDivision of Epilepsy and Clinical Neurophysiology and Epilepsy Genetics Program, Department of Neurology, Boston Children's Hospital, Boston, MA, USA.
Lacey SmithDivision of Epilepsy and Clinical Neurophysiology and Epilepsy Genetics Program, Department of Neurology, Boston Children's Hospital, Boston, MA, USA.
Luiza SoteroDepartment of Pediatrics and Pediatric Neurology Laboratory, Instituto Fernandes Figueira, Rio de Janeiro 22250-020, Brazil.
Hannah StambergerDivision of Neurology, University Hospital Antwerp, Antwerp, Belgium.
Steffen SyrbeDivision of Pediatric Epileptology, Centre for Pediatric and Adolescent Medicine, University Hospital Heidelberg, 69120 Heidelberg, Germany.
Kim Marie ThalwitzerDivision of Pediatric Epileptology, Centre for Pediatric and Adolescent Medicine, University Hospital Heidelberg, 69120 Heidelberg, Germany.
Annemiek van BerkelDepartment of Functional Genomics, Center for Neurogenomics and Cognitive Research (CNCR), VU University Amsterdam, De Boelelaan 1085, 1081 HV Amsterdam, The Netherlands.
Mieke van HaelstDepartment of Human Genetics, Center for Neurogenomics and Cognitive Research (CNCR), Amsterdam University Medical Center, de Boelelaan 1085, 1081 HV Amsterdam, The Netherlands.
Christopher YuskaitisDivision of Epilepsy and Clinical Neurophysiology and Epilepsy Genetics Program, Department of Neurology, Boston Children's Hospital, Boston, MA, USA.
Sarah WeckhuysenDivision of Neurology, University Hospital Antwerp, Antwerp, Belgium.ORCID 0000-0003-2878-1147
Ben ProsserDepartment of Physiology, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA.
Charlene Son RigbySTXBP1 Foundation, Apex, NC 27539, USA.
Scott DemarestDepartments of Pediatrics and Neurology, Children's Hospital Colorado, Aurora, CO 80045, USA.
Samuel PierceDivision of Neurology, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA.
Yuehua ZhangDepartment of Pediatrics, Beijing University First Hospital, Beijing, China.
Rikke S MøllerDepartment of Clinical Neurophysiology, Danish Epilepsy Center Filadelfia, Dianalund 4293, Denmark.
Hilgo BruiningDepartment of Child and Adolescent Psychiatry, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands.
Annapurna PoduriDivision of Epilepsy and Clinical Neurophysiology and Epilepsy Genetics Program, Department of Neurology, Boston Children's Hospital, Boston, MA, USA.
Federico ZaraDepartment of Neurosciences, Rehabilitation, Ophthalmology, Genetics, and Maternal and Child Health, University of Genoa, Genoa, Italy.
Matthijs VerhageDepartment of Human Genetics, Center for Neurogenomics and Cognitive Research (CNCR), Amsterdam University Medical Center, de Boelelaan 1085, 1081 HV Amsterdam, The Netherlands.ORCID 0000-0002-5452-5000
Pasquale StrianoDepartment of Neurosciences, Rehabilitation, Ophthalmology, Genetics, and Maternal and Child Health, University of Genoa, Genoa, Italy.
Ingo HelbigDivision of Neurology, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA.ORCID 0000-0001-8486-0558
Children's Hospital of Philadelphia · USBoston Children's Hospital · USAmsterdam Neuroscience · NLChildren's Hospital Colorado · USFiladelfia · DKHeidelberg University · DEIstituto Giannina Gaslini · ITAmsterdam University Medical Centers · NLHospital Sant Joan de Déu Barcelona · ESMRC Cognition and Brain Sciences Unit · GBAntwerp University Hospital · BEApex Foundation · USPeking University · CNRoyal Victoria Infirmary · GBSamsung Medical Center · KRSichuan University · CNUniversity of Antwerp · BEUniversity of Pennsylvania · US

Funding

Phenotypic Diversity in COVID-19UL1TR001878 · NCATS · UNIVERSITY OF PENNSYLVANIA · PI FITZGERALD, GARRET A · 2016 to 2025
$102.4M
Genetic Analysis and Manipulation Core (GAEC)P50HD105351 · NICHD · BOSTON CHILDREN'S HOSPITAL · PI Hisashi Umemori · 2021 to 2026
$9.4M
The Intellectual and Developmental Disabilities Research Center at CHOP/PennU54HD086984 · NICHD · CHILDREN'S HOSP OF PHILADELPHIA · PI SCHULTZ, ROBERT THOMAS · 2016 to 2020
$6.3M
Remapping neurology through translation and innovationT32NS091008 · NINDS · UNIVERSITY OF PENNSYLVANIA · PI AGUIRRE, GEOFFREY KARL, JENSEN, FRANCES E · 2015 to 2024
$3.0M
ClinGen Expert Curation Panel for the EpilepsiesU24NS120854 · NINDS · ST. JUDE CHILDREN'S RESEARCH HOSPITAL · PI Ingo Helbig, HEATHER C. MEFFORD · 2021 to 2026
$2.0M
Diagnosis and Genotype-Phenotype Correlations in Early Life Epilepsy and CDKL5 DisorderK23NS107646 · NINDS · BOSTON CHILDREN'S HOSPITAL · PI OLSON, HEATHER ELISA · 2018 to 2023
$1.2M
Polygenic risk in familial epilepsyK23NS121520 · NINDS · UNIVERSITY OF PENNSYLVANIA · PI ELLIS, COLIN · 2021 to 2025
$1.1M
Joint analysis of genomic and electronic medical record data to assess outcomes and drug response in pediatric epilepsiesK02NS112600 · NINDS · CHILDREN'S HOSP OF PHILADELPHIA · PI HELBIG, INGO · 2020 to 2024
$963k
Medical Research Council MC_UU_00005/16Medical Research Council MC_UU_00030/3NCATS NIH HHS UL1 TR001878NICHD NIH HHS P50 HD105351NICHD NIH HHS U54 HD086984NINDS NIH HHS K02 NS112600NINDS NIH HHS K23 NS107646NINDS NIH HHS K23 NS121520NINDS NIH HHS T32 NS091008NINDS NIH HHS U24 NS120854Wellcome Trust
6 · The paper itself

Abstract

Disease-causing variants in STXBP1 are among the most common genetic causes of neurodevelopmental disorders. However, the phenotypic spectrum in STXBP1-related disorders is wide and clear correlations between variant type and clinical features have not been observed so far. Here, we harmonized clinical data across 534 individuals with STXBP1-related disorders and analysed 19 973 derived phenotypic terms, including phenotypes of 253 individuals previously unreported in the scientific literature. The overall phenotypic landscape in STXBP1-related disorders is characterized by neurodevelopmental abnormalities in 95% and seizures in 89% of individuals, including focal-onset seizures as the most common seizure type (47%). More than 88% of individuals with STXBP1-related disorders have seizure onset in the first year of life, including neonatal seizure onset in 47%. Individuals with protein-truncating variants and deletions in STXBP1 (n = 261) were almost twice as likely to present with West syndrome and were more phenotypically similar than expected by chance. Five genetic hotspots with recurrent variants were identified in more than 10 individuals, including p.Arg406Cys/His (n = 40), p.Arg292Cys/His/Leu/Pro (n = 30), p.Arg551Cys/Gly/His/Leu (n = 24), p.Pro139Leu (n = 12), and p.Arg190Trp (n = 11). None of the recurrent variants were significantly associated with distinct electroclinical syndromes, single phenotypic features, or showed overall clinical similarity, indicating that the baseline variability in STXBP1-related disorders is too high for discrete phenotypic subgroups to emerge. We then reconstructed the seizure history in 62 individuals with STXBP1-related disorders in detail, retrospectively assigning seizure type and seizure frequency monthly across 4433 time intervals, and retrieved 251 anti-seizure medication prescriptions from the electronic medical records. We demonstrate a dynamic pattern of seizure control and complex interplay with response to specific medications particularly in the first year of life when seizures in STXBP1-related disorders are the most prominent. Adrenocorticotropic hormone and phenobarbital were more likely to initially reduce seizure frequency in infantile spasms and focal seizures compared to other treatment options, while the ketogenic diet was most effective in maintaining seizure freedom. In summary, we demonstrate how the multidimensional spectrum of phenotypic features in STXBP1-related disorders can be assessed using a computational phenotype framework to facilitate the development of future precision-medicine approaches.

Indexed as

EpilepsySpasms, InfantileElectroencephalographyHumansInfantMunc18 ProteinsRetrospective StudiesSeizuresMunc18 ProteinsSTXBP1 protein, humandevelopmental and epileptic encephalopathyepilepsygeneticsHuman Phenotype OntologySTXBP1

Identifiers

PMID35190816
PMCPMC9166568
OpenAlexW4206071515

What Socratic holds

Textmetadata
LicenceCC BY
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 Socratic graph.