NCT03084224

Brief Summary

For some neurological and neurodegenerative diseases genetic inheritance is well documented (described as Mendelian or multifactorial), but sometimes specific mutations or family segregation evidences have not been identified. Considering this scenario, most of the times it is impossible or unlikely to identify the responsible gene, or the private mutation, of a patient affected by a neurodegenerative disease. New technologies such as Next Generation Sequencing (NGS), allow the analysis of hundreds of genes in a single experiment. The implementation of these technologies will help to identify new genes and new variants associated with neurological diseases. Using this approach, several molecular genetic diagnosis will definitely find the needle in a haystack, and will be able to be used in the clinical practice.

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
1

participants targeted

Target at below P25 for all trials

Timeline
Completed

Started Dec 2019

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
unknown

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

First Submitted

Initial submission to the registry

March 13, 2017

Completed
7 days until next milestone

First Posted

Study publicly available on registry

March 20, 2017

Completed
2.7 years until next milestone

Study Start

First participant enrolled

December 1, 2019

Completed
3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2022

Completed
3 years until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2025

Completed
Last Updated

April 28, 2022

Status Verified

April 1, 2022

Enrollment Period

3 years

First QC Date

March 13, 2017

Last Update Submit

April 27, 2022

Conditions

Outcome Measures

Primary Outcomes (1)

  • Neurology consulting

    Clinical valuation

    10 days

Secondary Outcomes (2)

  • Genetic Counseling

    1 day

  • Molecular testing I and/or II level

    3-6 months

Interventions

NGS on a large scale of Patients with complexes phenotypes

Eligibility Criteria

Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

Patients without genetic diagnosis

You may qualify if:

  • Clinical criteria for neurogenetic disease

You may not qualify if:

  • absence of clinical condition

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Stefano Gambardella

Pozzilli, Isernia, 86077, Italy

RECRUITING

Related Publications (10)

  • Zhi D, Chen R. Statistical guidance for experimental design and data analysis of mutation detection in rare monogenic mendelian diseases by exome sequencing. PLoS One. 2012;7(2):e31358. doi: 10.1371/journal.pone.0031358. Epub 2012 Feb 10.

  • Wheeler DA, Srinivasan M, Egholm M, Shen Y, Chen L, McGuire A, He W, Chen YJ, Makhijani V, Roth GT, Gomes X, Tartaro K, Niazi F, Turcotte CL, Irzyk GP, Lupski JR, Chinault C, Song XZ, Liu Y, Yuan Y, Nazareth L, Qin X, Muzny DM, Margulies M, Weinstock GM, Gibbs RA, Rothberg JM. The complete genome of an individual by massively parallel DNA sequencing. Nature. 2008 Apr 17;452(7189):872-6. doi: 10.1038/nature06884.

  • Voelkerding KV, Dames SA, Durtschi JD. Next-generation sequencing: from basic research to diagnostics. Clin Chem. 2009 Apr;55(4):641-58. doi: 10.1373/clinchem.2008.112789. Epub 2009 Feb 26.

  • Tucker T, Marra M, Friedman JM. Massively parallel sequencing: the next big thing in genetic medicine. Am J Hum Genet. 2009 Aug;85(2):142-54. doi: 10.1016/j.ajhg.2009.06.022.

  • Teer JK, Mullikin JC. Exome sequencing: the sweet spot before whole genomes. Hum Mol Genet. 2010 Oct 15;19(R2):R145-51. doi: 10.1093/hmg/ddq333. Epub 2010 Aug 12.

  • Singleton AB. Exome sequencing: a transformative technology. Lancet Neurol. 2011 Oct;10(10):942-6. doi: 10.1016/S1474-4422(11)70196-X.

  • Ng SB, Buckingham KJ, Lee C, Bigham AW, Tabor HK, Dent KM, Huff CD, Shannon PT, Jabs EW, Nickerson DA, Shendure J, Bamshad MJ. Exome sequencing identifies the cause of a mendelian disorder. Nat Genet. 2010 Jan;42(1):30-5. doi: 10.1038/ng.499. Epub 2009 Nov 13.

  • Mamanova L, Coffey AJ, Scott CE, Kozarewa I, Turner EH, Kumar A, Howard E, Shendure J, Turner DJ. Target-enrichment strategies for next-generation sequencing. Nat Methods. 2010 Feb;7(2):111-8. doi: 10.1038/nmeth.1419.

  • Li H, Ruan J, Durbin R. Mapping short DNA sequencing reads and calling variants using mapping quality scores. Genome Res. 2008 Nov;18(11):1851-8. doi: 10.1101/gr.078212.108. Epub 2008 Aug 19.

  • Ferese R, Campopiano R, Scala S, D'Alessio C, Storto M, Buttari F, Centonze D, Logroscino G, Zecca C, Zampatti S, Fornai F, Cianci V, Manfroi E, Giardina E, Magnani M, Suppa A, Novelli G, Gambardella S. Cohort Analysis of 67 Charcot-Marie-Tooth Italian Patients: Identification of New Mutations and Broadening of Phenotype Expression Produced by Rare Variants. Front Genet. 2021 Jul 19;12:682050. doi: 10.3389/fgene.2021.682050. eCollection 2021.

Biospecimen

Retention: SAMPLES WITH DNA

Samples with Parkinson's Disease

MeSH Terms

Conditions

Genetic Diseases, Inborn

Condition Hierarchy (Ancestors)

Congenital, Hereditary, and Neonatal Diseases and Abnormalities

Study Officials

  • Stefano Gambardella, PhD

    IRCCS Neuromed INM

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
observational
Observational Model
CASE ONLY
Time Perspective
OTHER
Target Duration
8 Years
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Biologist, PhD

Study Record Dates

First Submitted

March 13, 2017

First Posted

March 20, 2017

Study Start

December 1, 2019

Primary Completion

December 1, 2022

Study Completion

December 1, 2025

Last Updated

April 28, 2022

Record last verified: 2022-04

Data Sharing

IPD Sharing
Will not share

Locations