NCT05422833

Brief Summary

The objective of our study was to assess the effectiveness of our reference center since its constitution. In a retrospective cohort study, we compared the activity of our center, including the time elapsed between diagnosis and access to the center and the diagnostic delay of patients with fibrous dysplasia between two periods, 1996-2006 (before certification of our center) and 2007-2019 (after certification of our center).

Trial Health

87
On Track

Trial Health Score

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

Enrollment
528

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Jan 1996

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

January 1, 1996

Completed
23.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2019

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2019

Completed
2.4 years until next milestone

First Submitted

Initial submission to the registry

May 10, 2022

Completed
1 month until next milestone

First Posted

Study publicly available on registry

June 21, 2022

Completed
Last Updated

June 21, 2022

Status Verified

June 1, 2022

Enrollment Period

23.9 years

First QC Date

May 10, 2022

Last Update Submit

June 16, 2022

Conditions

Keywords

Fibrous Dysplasia of BoneMcCune Albright Syndromerarebone diseasehealthcare organization

Outcome Measures

Primary Outcomes (1)

  • to compare time elapsed between first symptomes or discovery of bone lesions and the diagnosis of FD

    The main objective was to compare time elapsed between first symptomes or discovery of bone lesions and the diagnosis of FD, over 2 periods of time: 1996-2006 (before certification) and 2007-2019 (after certification).

    1996-2019

Study Arms (2)

Before

Children and adults with FD/MAS who visited at least once in our center (outpatient and hospitalized patients). and with the first visit in the center included between 1996 and 2006 - before certification of our center.

Other: Evaluation and analysis of clinical data

After

Children and adults with FD/MAS who visited at least once in our center (outpatient and hospitalized patients). and with the first visit in the center included between 2007 and 2019 - after certification of our center.

Other: Evaluation and analysis of clinical data

Interventions

Evaluation and analysis of clinical data (baseline demographic features (sex, age at diagnosis, age at first symptoms, age at first visit), initial presenting symptoms, affected bone sites (monostotic FD or polyostotic FD), renal phosphate wasting, MAS, Mazabraud syndrome, endocrine disease, fractures, bone specific treatment especially bisphosphonate and surgery, pain and disease's severity.

AfterBefore

Eligibility Criteria

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

Children and adults with FD/MAS who visited at least once in our center

You may qualify if:

  • We have included children and adults with FD/MAS who visited at least once in our center (outpatient and hospitalized patients). The diagnosis was established by an expert of the center, based on clinical, biological, imaging and/or histological arguments

You may not qualify if:

  • The absence of detectable bone lesion

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

rheumatology department, hopital Edouard Herriot

Lyon, 69003, France

Location

MeSH Terms

Conditions

Fibrous Dysplasia of BoneFibrous Dysplasia, PolyostoticBone Diseases

Condition Hierarchy (Ancestors)

OsteochondrodysplasiasBone Diseases, DevelopmentalMusculoskeletal Diseases

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
RETROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

May 10, 2022

First Posted

June 21, 2022

Study Start

January 1, 1996

Primary Completion

December 1, 2019

Study Completion

December 1, 2019

Last Updated

June 21, 2022

Record last verified: 2022-06

Locations