Osteogenesis ImperfectaPhase 4NCT01713231
Effect of High-Dose Vitamin D on Bone Density in Osteogenesis Imperfecta
A Phase 4 study testing standard-dose vitamin D (400IU per day) and high-dose vitamin D (2000 IU per day) in people with Osteogenesis Imperfecta, run by Louis-Nicolas Veilleux Ph.D. at 1 site in Canada.
Trial summary
Overall Objective: To test the hypothesis that oral vitamin D supplementation at higher than currently prescribed doses has a beneficial effect on the skeleton of young patients with osteogenesis imperfecta (OI). Specific Aims: 1. Read more about this study
- Who is it for?
- Ages 6 to 19 years
- Conditions the study is for
- Osteogenesis Imperfecta
- What is being tested?
- standard-dose vitamin D (400IU per day) and high-dose vitamin D (2000 IU per day)
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 60 participants
- Where
- 1 siteCanada
- Study dates
- Sep 2012to Jul 2014
- Phase
- Phase 4
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 6 to 19 years
- All sexes
- No healthy volunteers
- Child, Adult
Who may be able to join
- Clinical diagnosis of OI of any type.
Who cannot join
- Any condition that renders bone density measurements at the lumbar spine impossible. An example for this is prior spinal fusion surgery.
- Bisphosphonate therapy for less than two years duration.
- Use of medication, other than bisphosphonates, known to affect bone metabolism or 25OHD serum concentrations. Examples are anti-epileptics, active vitamin D metabolites, corticosteroids and thyroid hormones.
- Liver and renal disease known to interfere with vitamin D metabolism.
- Any other disorder of calcium and phosphate metabolism (apart from vitamin D deficiency) that might interfere with PTH.
Trial locations and contacts
1 site in 1 country.
About this study
- Overall Objective: To test the hypothesis that oral vitamin D supplementation at higher than currently prescribed doses has a beneficial effect on the skeleton of young patients with osteogenesis imperfecta (OI).
- Specific Aims: 1. To determine whether 12 months of high-dose vitamin D supplementation, compared to standard-dose vitamin D supplementation, increases areal bone mineral density z-scores at the lumbar spine. 2. To examine the effectiveness of high-dose vitamin D supplementation to increase trabecular and cortical bone mineral density at the radius. 3. To examine whether high-dose vitamin D supplementation has an effect on physiological determinants of bone mass (parathyroid hormone, activity of bone metabolism, muscle function).
- Background: In a preliminary cross-sectional study of 282 OI patients we observed an inverse relationship between serum 25-hydroxyvitamin D and parathyroid hormone levels and a positive relationship between circulating levels of 25-hydroxyvitamin D and lumbar spine areal bone mineral density z-scores. This suggested that high-dose vitamin D supplementation would have a beneficial effect on bone density. Most OI patients currently receive oral vitamin D supplementation of 400 International Units per day, but doses of 2000 International Units per day are safe and have been shown to be beneficial in studies on healthy adolescents.
- Study Design: This is a parallel-group double-blind randomized controlled trial of 12 months duration on 60 children and adolescents aged 6 to 19 years with a clinical diagnosis of OI. One group of 30 participants will be randomized to receive vitamin D3 at a dose of 2000 international units per day ('high-dose group'). The other group of 30 participants will be randomized to receive vitamin D3 at a dose of 400 international units per day ('standard-dose group'). Randomization will be stratified according to pubertal status and bisphosphonate treatment status.
- Clinical Relevance: The proposed study aims at direct improvements in the care of OI patients. If a simple and low-cost 'intervention' such as high-dose vitamin D supplementation can be shown to be effective in relieving some of the disease burden associated with OI, the benefit to OI patients worldwide would be substantial.
- Conditions
- Osteogenesis Imperfecta
- Being tested
- standard-dose vitamin D (400IU per day), high-dose vitamin D (2000 IU per day)
- Keywords
- osteogenesis imperfecta, high-dose vitamin D, bone density, muscle function
- Medical subject headings
- Osteogenesis Imperfecta
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
standard-dose vitamin D (400IU per day)Dietary supplement
high-dose vitamin D (2000 IU per day)Dietary supplement
| Study group | Role | What they receive |
|---|---|---|
| standard-dose vitamin D | Active comparator | one group of 30 participants will be randomized to receive vitamin D3 at a dose of 400 international units per day ('standard-dose group'). Receives: Dietary Supplement: standard-dose vitamin D (400IU per day) |
| high-dose vitamin D | Experimental | One group of 30 participants will be randomized to receive vitamin D3 at a dose of 2000 international units per day ('high-dose group'). Receives: Dietary Supplement: high-dose vitamin D (2000 IU per day) |
What is being measured
The primary outcome is the main question the study is designed to answer.
Change in areal bone mineral density z-score of the lumbar spine
LS-aBMD z-score will be used as the primary outcome.The lumbar spine is the standard site of measurement both in the clinical follow up of OI patients .
Measured: at baseline and 12 months
Secondary outcomes (1)
Change in trabecular and cortical volumetric bone mineral density z-scores at the radius, as measured by pQCT, relative to baseline.
Trabecular bone is analyzed at the distal radial metaphysis ('4% site'). Cortical bone is analyzed at the radial diaphysis ('65% site').
Measured: at baseline and at 12 months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted24 Oct 2012 (estimated)
- Study startSep 2012
- Primary completionMar 2013
- Study completionJul 2014
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for Osteogenesis ImperfectaStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 4
- Primary purpose
- Supportive care
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Triple blind
- Who is masked
- Participant, Investigator, Outcomes assessor
- Enrolment
- 60 participants (actual)
Sponsor and investigators
- Lead sponsor
- Louis-Nicolas Veilleux Ph.D.
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor-investigator, Louis-Nicolas Veilleux Ph.D., Shriners Hospitals for Children
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01713231
- Sponsor's protocol ID
- A02-M14-12A
- Status last verified
- Sep 2014
- First submitted
- 21 Oct 2012
- Last updated
- 9 Sep 2014
- Results posted
- No
- Data monitoring committee
- Yes
Publications
Plante L, Veilleux LN, Glorieux FH, Weiler H, Rauch F. Effect of high-dose vitamin D supplementation on bone density in youth with osteogenesis imperfecta: A randomized controlled trial. Bone. 2016 May;86:36-42. doi: 10.1016/j.bone.2016.02.013. Epub 2016 Feb 24.
PubMed 26924265
Study at a glance
From the registry record, last updated by the sponsor on 9 Sep 2014. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Effect of High-Dose Vitamin D on Bone Density in Osteogenesis Imperfecta
- ClinicalTrials.gov ID
- NCT01713231
- Acronym / sponsor ID
- A02-M14-12A
- Conditions
- Osteogenesis Imperfecta
- Keywords
- osteogenesis imperfecta, high-dose vitamin D, bone density, muscle function
- Phase
- Phase 4
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 60 participants (actual)
- Lead sponsor
- Louis-Nicolas Veilleux Ph.D.University, hospital or other
- Study start
- Sep 2012
- Primary completion
- Mar 2013 (actual)
- Study completion
- Jul 2014 (actual)
- First posted
- 24 Oct 2012 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
- Overall Objective: To test the hypothesis that oral vitamin D supplementation at higher than currently prescribed doses has a beneficial effect on the skeleton of young patients with osteogenesis imperfecta (OI).
- Specific Aims: 1. To determine whether 12 months of high-dose vitamin D supplementation, compared to standard-dose vitamin D supplementation, increases areal bone mineral density z-scores at the lumbar spine. 2. To examine the effectiveness of high-dose vitamin D supplementation to increase trabecular and cortical bone mineral density at the radius. 3. To examine whether high-dose vitamin D supplementation has an effect on physiological determinants of bone mass (parathyroid hormone, activity of bone metabolism, muscle function).
- Background: In a preliminary cross-sectional study of 282 OI patients we observed an inverse relationship between serum 25-hydroxyvitamin D and parathyroid hormone levels and a positive relationship between circulating levels of 25-hydroxyvitamin D and lumbar spine areal bone mineral density z-scores. This suggested that high-dose vitamin D supplementation would have a beneficial effect on bone density. Most OI patients currently receive oral vitamin D supplementation of 400 International Units per day, but doses of 2000 International Units per day are safe and have been shown to be beneficial in studies on healthy adolescents.
- Study Design: This is a parallel-group double-blind randomized controlled trial of 12 months duration on 60 children and adolescents aged 6 to 19 years with a clinical diagnosis of OI. One group of 30 participants will be randomized to receive vitamin D3 at a dose of 2000 international units per day ('high-dose group'). The other group of 30 participants will be randomized to receive vitamin D3 at a dose of 400 international units per day ('standard-dose group'). Randomization will be stratified according to pubertal status and bisphosphonate treatment status.
- Clinical Relevance: The proposed study aims at direct improvements in the care of OI patients. If a simple and low-cost 'intervention' such as high-dose vitamin D supplementation can be shown to be effective in relieving some of the disease burden associated with OI, the benefit to OI patients worldwide would be substantial.
Study design
- Primary purpose
- Supportive care
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Triple blind (participant, investigator, outcomes assessor)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| standard-dose vitamin D | Active comparator | Dietary Supplement: standard-dose vitamin D (400IU per day)one group of 30 participants will be randomized to receive vitamin D3 at a dose of 400 international units per day ('standard-dose group'). |
| high-dose vitamin D | Experimental | Dietary Supplement: high-dose vitamin D (2000 IU per day)One group of 30 participants will be randomized to receive vitamin D3 at a dose of 2000 international units per day ('high-dose group'). |
Who may qualify
- Ages
- 6 to 19 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult
Key inclusion criteria (1 listed)
- Clinical diagnosis of OI of any type.
Key exclusion criteria (5 listed)
- Any condition that renders bone density measurements at the lumbar spine impossible. An example for this is prior spinal fusion surgery.
- Bisphosphonate therapy for less than two years duration.
- Use of medication, other than bisphosphonates, known to affect bone metabolism or 25OHD serum concentrations. Examples are anti-epileptics, active vitamin D metabolites, corticosteroids and thyroid hormones.
- Liver and renal disease known to interfere with vitamin D metabolism.
- Any other disorder of calcium and phosphate metabolism (apart from vitamin D deficiency) that might interfere with PTH.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| standard-dose vitamin D (400IU per day) | Dietary supplement | standard-dose vitamin D |
| high-dose vitamin D (2000 IU per day) | Dietary supplement | high-dose vitamin D |
Primary outcome
Change in areal bone mineral density z-score of the lumbar spine
Time frame: at baseline and 12 months
LS-aBMD z-score will be used as the primary outcome.The lumbar spine is the standard site of measurement both in the clinical follow up of OI patients .
1 secondary outcome
Change in trabecular and cortical volumetric bone mineral density z-scores at the radius, as measured by pQCT, relative to baseline.
Time frame: at baseline and at 12 months
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 9 Sep 2014.
- Derived from this study: PubMed 26924265Plante L, Veilleux LN, Glorieux FH, Weiler H, Rauch F. Effect of high-dose vitamin D supplementation on bone density in youth with osteogenesis imperfecta: A randomized controlled trial. Bone. 2016 May;86:36-42. doi: 10.1016/j.bone.2016.02.013. Epub 2016 Feb 24.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 4 study testing standard-dose vitamin D (400IU per day) and high-dose vitamin D (2000 IU per day) in people with Osteogenesis Imperfecta, run by Louis-Nicolas Veilleux Ph.D. at 1 site in Canada.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 1 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 9 Sep 2014. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Canada. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Change in areal bone mineral density z-score of the lumbar spine (time frame: at baseline and 12 months). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT01713231, which also lists 1 linked publication.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 9 Sep 2014; AzTrials last refreshed its copy on 6 Nov 2026.