- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02561182
Bone Health in Patients With Overgrowth
Study Overview
Status
Conditions
Detailed Description
It is known that patients with complex vascular malformation are at risk of decreased bone density and even vanishing bone disease. However, what is not known is if patients with OGS are at decreased bone density at locations that are distant from the vascular malformation.
This study will look at bone health in patient's with OGS in a cross sectional fashion. If they are found to be at a particular risk for decreased bone density then this can be addressed in early childhood, through nutrition and activity recommendations.
The study will consist of 15 participants, all who have a known clinical diagnosis of an overgrowth syndrome, and will be >5 years old so that they can co operate with a DEXA or Xtreme CT scan.
Study specifics:
- They will be asked specific questions regarding medical and family history and an intake form will be filled out.
- The height, weight, body mass index and Tanner stage measurements will be recorded during this visit.
- Photos of the affected area(s) will be taken, however, this is optional.
- A urine pregnancy test will be done in all females of childbearing potential .
- Laboratory studies will be performed in all patients.
- A 24-hour urine sample will be collected from adults who are able and willing; in children and in those not able or unwilling to provide a 24-hour urine, a spot urine will be collected.
- Bone age will be assessed via plain film of the wrist
- Bone density will be assessed for each patient via DEXA scan
- Cortical and trabecular parameters and bone strength will be assessed by HRpQCT
Study Type
Enrollment (Actual)
Contacts and Locations
Study Locations
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Minnesota
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Rochester, Minnesota, United States, 55901
- Mayo Clinic
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Sampling Method
Study Population
Description
Inclusion Criteria:
- Age > 5 years such that the patient is able to cooperate with the DXA scan or Xtreme CT
- Known clinical diagnosis of an overgrowth syndrome such as Klippel-Trenaunay Syndrome, CLOVE syndrome, Proteus syndrome, diffuse capillary malformation with overgrowth, or other unspecified OGS.
Exclusion Criteria:
- Age < 5 years
- Inability to comply with the scan
- No or uncertain diagnosis of an OGS.
- Prior bisphosphonate use
- Systemic steroids in the past 6 months
- Pregnant women
Study Plan
How is the study designed?
Design Details
- Observational Models: Cohort
- Time Perspectives: Prospective
Cohorts and Interventions
Group / Cohort |
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Patients aged 5 years old and with a known diagnosis of a OGS
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Evidence of decreased bone density in patients with vascular malformations, confirmed by DEXA scans
Time Frame: One year
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One year
|
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Evidence of decreased bone density in patients with vascular malformations, confirmed by serum specific bone markers
Time Frame: One year
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Bone markers : Alkaline phosphatase; albumin; PTH; 1-25 dihydroxyvitamin D, 25- hydroxyvitamin D
|
One year
|
Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Megha M Tollefson, MD, Mayo Clinic
Publications and helpful links
Helpful Links
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 15-002284
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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