NCT03892798

Brief Summary

This protocol serves as a data collection tool for individuals with variants (missense, nonsense, frameshifts) in the IRF2BPL gene (MIM 611720), which causes Neurodevelopmental Regression, Seizures, Autism and Developmental Delay (NEDAMSS, MIM 618088) and may be involved in other neurodevelopmental presentations. This information will be analyzed to develop a better understanding of the findings and progression of symptoms in individuals with variants in the IRF2BPL gene.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
34

participants targeted

Target at P25-P50 for all trials

Timeline
Completed

Started Nov 2018

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

November 27, 2018

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

January 25, 2019

Completed
2 months until next milestone

First Posted

Study publicly available on registry

March 27, 2019

Completed
5.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 17, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 17, 2024

Completed
Last Updated

May 20, 2024

Status Verified

May 1, 2024

Enrollment Period

5.5 years

First QC Date

January 25, 2019

Last Update Submit

May 17, 2024

Conditions

Keywords

IRF2BPLNEDAMSSdystoniamovement disorderseizures

Outcome Measures

Primary Outcomes (1)

  • Questionnaire

    The investigators will collect information regarding age at development of symptoms, age at diagnosis, method for diagnosis, specific mutations detected, additional complications with age at onset and treatment.

    Throughout study completion, with the assessment completed on average once per year.

Secondary Outcomes (1)

  • Genotype-phenotype correlations

    Throughout study completion, with the assessment completed on average once per year.

Interventions

No interventions are planned

Eligibility Criteria

Age2 Months - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

The study population will consist of children and adults who are diagnosed with NEDAMSS and have variants in the IRF2BPL gene.

You may qualify if:

  • Living or deceased individuals with variants in the IRF2BPL gene

You may not qualify if:

  • None

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Cincinnati Children's

Cincinnati, Ohio, 45229, United States

Location

Related Publications (2)

  • Marcogliese PC, Shashi V, Spillmann RC, Stong N, Rosenfeld JA, Koenig MK, Martinez-Agosto JA, Herzog M, Chen AH, Dickson PI, Lin HJ, Vera MU, Salamon N, Graham JM Jr, Ortiz D, Infante E, Steyaert W, Dermaut B, Poppe B, Chung HL, Zuo Z, Lee PT, Kanca O, Xia F, Yang Y, Smith EC, Jasien J, Kansagra S, Spiridigliozzi G, El-Dairi M, Lark R, Riley K, Koeberl DD, Golden-Grant K; Program for Undiagnosed Diseases (UD-PrOZA); Undiagnosed Diseases Network; Yamamoto S, Wangler MF, Mirzaa G, Hemelsoet D, Lee B, Nelson SF, Goldstein DB, Bellen HJ, Pena LDM. IRF2BPL Is Associated with Neurological Phenotypes. Am J Hum Genet. 2018 Sep 6;103(3):456. doi: 10.1016/j.ajhg.2018.08.010. No abstract available.

    PMID: 30193138BACKGROUND
  • Tran Mau-Them F, Guibaud L, Duplomb L, Keren B, Lindstrom K, Marey I, Mochel F, van den Boogaard MJ, Oegema R, Nava C, Masurel A, Jouan T, Jansen FE, Au M, Chen AH, Cho M, Duffourd Y, Lozier E, Konovalov F, Sharkov A, Korostelev S, Urteaga B, Dickson P, Vera M, Martinez-Agosto JA, Begemann A, Zweier M, Schmitt-Mechelke T, Rauch A, Philippe C, van Gassen K, Nelson S, Graham JM Jr, Friedman J, Faivre L, Lin HJ, Thauvin-Robinet C, Vitobello A. De novo truncating variants in the intronless IRF2BPL are responsible for developmental epileptic encephalopathy. Genet Med. 2019 Apr;21(4):1008-1014. doi: 10.1038/s41436-018-0143-0. Epub 2018 Aug 31.

    PMID: 30166628BACKGROUND

Biospecimen

Retention: SAMPLES WITH DNA

If available left-ever tissue and blood from clinical investigations may be stored in the CCHMC Biorepository for future research.

MeSH Terms

Conditions

Autism Spectrum DisorderMovement DisordersSeizuresDystonia

Condition Hierarchy (Ancestors)

Child Development Disorders, PervasiveNeurodevelopmental DisordersMental DisordersCentral Nervous System DiseasesNervous System DiseasesNeurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and SymptomsDyskinesias

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
OTHER
Target Duration
20 Years
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor

Study Record Dates

First Submitted

January 25, 2019

First Posted

March 27, 2019

Study Start

November 27, 2018

Primary Completion

May 17, 2024

Study Completion

May 17, 2024

Last Updated

May 20, 2024

Record last verified: 2024-05

Data Sharing

IPD Sharing
Will not share

Locations