Neurofibromatosis Type 1 (NF1) and Tibial Dysplasia

NCT ID: NCT00303368

Last Updated: 2019-02-25

Basic Information

• Recruitment Status: COMPLETED
• Total Enrollment: 395 participants
• Study Classification: OBSERVATIONAL
• Study Start Date: 2004-03-31
• Study Completion Date: 2016-01-31

Brief Summary

The study is a multicenter four-year outcome study of the natural history of tibial dysplasia in patients with NF1 and selected patients without NF1. We will obtain information on the natural history, burden, functional and health status, health-related quality of life, and surgical interventions/outcomes of tibial dysplasia. The project will also establish a Core Facility (NOCF) for tissue samples for future studies.

Detailed Description

The three specific aims of this study are:

• Specific Aim 1 - To assess health status and health - related quality of life (HRQL) in 50 children and adolescents with NF1 and tibial dysplasia and in NF1 controls. We hypothesize that children and adolescents with NF1 and tibial dysplasia will experience an additional burden of morbidity due to tibial dysplasia and a downward trajectory of health status and HRQL over time.
• Specific Aim 2 - To assess the long term outcome of current treatment in 100 adult patients diagnosed with NF1 and tibial dysplasia in childhood. We hypothesize that better quality of life and function, in adults with NF1 and tibial dysplasia, are associated with amputation in childhood compared to multiple surgical procedures, the lack of fibular involvement, and fracture later in childhood. We also hypothesize that individuals with NF1 and tibial dysplasia have a higher risk of other bony dysplasias but are at no higher risk of fracture in other bones.
• Specific Aim 3 - To assess the natural history and short-term response to therapy in a cohort of at least 60 children with NF1 and tibial dysplasia and at least 60 children with tibial dysplasia presumably without NF1 prospectively diagnosed during the course of the four-year study period. We hypothesize that NF1 patients with earlier presentation, Crawford Class II A-C, male gender, and the lack of bracing prior to age two are more likely to fracture. We also postulate that individuals with and without NF1 have a similar outcome and response to treatment.

The results of this project will provide a rational basis for future clinical and therapeutic trials.

Conditions

Neurofibromatosis Type 1; Tibial Dysplasia

Study Design

• Observational Model Type: OTHER
• Study Time Perspective: RETROSPECTIVE

Eligibility Criteria

Inclusion Criteria

• Aim 1:

• Group 1, NF1 with Tibial Dysplasia, Ages: 3-18
• Group 2 (control), NF1 without Tibial Dysplasia, Ages 3-18
• Aim 2: NF1 with Tibial Dysplasia, 19+
• Aim 3: Tibial Dysplasia with or without NF1, Ages: birth to 18
• Tissue procurement, any participant undergoing surgery at the tibial site for routine standard of care

Exclusion Criteria

• Patients without a diagnosis of NF1 or Tibial Dysplasia

• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

University of Utah

OTHER

Sponsor Role: collaborator

Shriners Hospitals for Children

OTHER

Sponsor Role: lead

Responsible Party

Jacques D'Astous

Principal Investigator

Responsibility Role: PRINCIPAL_INVESTIGATOR

Principal Investigators

John C Carey, MD, MPH

Role: PRINCIPAL_INVESTIGATOR

University of Utah, Health Science Center

Locations

Shriners Hospitals for Children, Intermountain Hospital

Salt Lake City, Utah, United States

Countries

United States

Other Identifiers

9165

Identifier Type: -

Identifier Source: org_study_id