NCT05876416

Brief Summary

This 5-year project aims to (1) search for genetic causes for yet unsolved congenital skeletal disorders (GSDs); (2) study consequences of the newly identified pathogenic variants in cells and in transgenic mice, (3) summarize data on natural course and complications for different GSD groups. For patients with unsolved GSD, the investigators search for molecular causes of GSDs using whole genome sequencing (WGS) and total ribonucleic acid (RNA) sequencing. Candidate gene variants are selected using genome or transcriptome sequencing data, clinical findings and screening of omics databases. Causality of the new variants is studied in cells and in transgenic mice models. Molecular and clinical findings are summarized for different GSD groups.

Trial Health

77
On Track

Trial Health Score

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

Enrollment
450

participants targeted

Target at P75+ for all trials

Timeline
8mo left

Started Jan 2015

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
recruiting

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

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress95%
Jan 2015Dec 2026

Study Start

First participant enrolled

January 1, 2015

Completed
8.3 years until next milestone

First Submitted

Initial submission to the registry

April 16, 2023

Completed
1 month until next milestone

First Posted

Study publicly available on registry

May 25, 2023

Completed
3.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2026

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2026

Last Updated

May 25, 2023

Status Verified

May 1, 2023

Enrollment Period

12 years

First QC Date

April 16, 2023

Last Update Submit

May 16, 2023

Conditions

Outcome Measures

Primary Outcomes (2)

  • New gene discoveries for genetic skeletal disorders (GSDs)

    2-3 new disease causes and disease entities identified and reported per year for GSDs.

    2023-2028

  • Improved knowledge regarding natural cause of rare GSDs

    1-2 GSDs reported as small patient groups with the same condition and clinical characteristics/course.

    2023-2028

Secondary Outcomes (2)

  • Disease (GSD) associated traits and complications

    2023-2028

  • Information on disease causing variants in GSD

    2023-2028

Eligibility Criteria

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

Individuals of any age with congenital skeletal diseases and their healthy relatives

You may qualify if:

  • Clinically suspected skeletal dysplasia based on previous investigations
  • Abnormal height
  • Radiographic abnormalities of the skeleton in addition to other syndromic features
  • Healthy relatives of the affected study participants

You may not qualify if:

  • No radiographic data available from clinical investigations
  • Suspected environmental or multifactorial causes

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Karolinska University Hospital

Stockholm, 17176, Sweden

RECRUITING

Biospecimen

Retention: SAMPLES WITH DNA

Genomic DNA samples, primary dermal fibroblasts, RNA from blood or fibroblasts

MeSH Terms

Conditions

Mucopolysaccharidosis IV

Condition Hierarchy (Ancestors)

MucopolysaccharidosesCarbohydrate Metabolism, Inborn ErrorsMetabolism, Inborn ErrorsGenetic Diseases, InbornCongenital, Hereditary, and Neonatal Diseases and AbnormalitiesLysosomal Storage DiseasesMucinosesConnective Tissue DiseasesSkin and Connective Tissue DiseasesMetabolic DiseasesNutritional and Metabolic Diseases

Study Officials

  • Giedre Grigelioniene, MD,

    Dept Molecular Medicine and Surgery, KI

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Giedre Grigelioniene, MD, PhD

CONTACT

Hillevi Lindelöf, MD

CONTACT

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
OTHER
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor, MD, PhD

Study Record Dates

First Submitted

April 16, 2023

First Posted

May 25, 2023

Study Start

January 1, 2015

Primary Completion (Estimated)

December 31, 2026

Study Completion (Estimated)

December 31, 2026

Last Updated

May 25, 2023

Record last verified: 2023-05

Data Sharing

IPD Sharing
Will not share

Due to GDPR we are not able to share genomic data, but in case of joined reports anonymized clinical data such as growth parameters or information on malformations will be shared.

Locations