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Fibrous Dysplasia of BonePhase 2/3PROFIDYSNCT00445575

Effect of Risedronate on Bone Morbidity in Fibrous Dysplasia of Bone

A Phase 2/3 study testing risedronate in people with Fibrous Dysplasia of Bone, run by Institut National de la Santé Et de la Recherche Médicale, France at 8 sites in 4 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This trial is intended to test the efficacy of an oral bisphosphonate (risedronate) to decrease bone pain and improve radiological aspect in fibrous dysplasia of bone. Read more about this study

Who is it for?
Ages 8 years and older
Conditions the study is for
Fibrous Dysplasia of Bone
What is being tested?
risedronate
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
80 participants
Where
8 sitesin 4 countries
Study dates
22 Jul 2007to 7 Dec 2017
Phase
Phase 2/3
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 8 years and older
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Who may be able to join

  • Study I: patients with FD, with bone pain intensity above 3 on visual analogical scale from 0 to 10
  • Study II: patients with FD with at least one osteolytic lesion and no current bone pain

Who cannot join

  • patients < 8 years old
  • other diseases affecting bone metabolism
  • patients with malignant diseases or other conditions likely to reduce their life expectancy to less than 3 years
  • patients with history of significant upper gastrointestinal disorders
  • renal failure (creatinine clearance < 25 ml/mn)
  • severe liver disease
Show all 12Show fewer
  • history of iritis or uveitis
  • rickets or osteomalacia
  • allergy to bisphosphonates
  • pregnancy or lactation
  • prior treatment with a bisphosphonate
  • laboratory abnormalities that may be considered as clinically significant by trial physicians

Trial locations and contacts

8 sites in 4 countries.

8 sites in 4 countries

France3 sites
  • Hopital E Herriot

    Lyon, 69437

  • Hopital Lariboisiere

    Paris, 75475

  • Hopital Cochin

    Paris, 75679

Other trials in France

Germany3 sites
  • Hospital Benjamin Franklin

    Berlin, 12200

  • Cologne Clinical Centre

    Cologne, 50924

  • Heildeberg Clinical Centre

    Heidelberg, 69120

Other trials in Germany

Belgium1 site
  • Cliniques Universitaires Saint Luc

    Brussels, 1200

Other trials in Belgium

Netherlands1 site
  • Leids Universitair Medisch Centrum

    Leiden, 2300

Other trials in Netherlands

About this study

This trial is intended to test the efficacy of an oral bisphosphonate (risedronate) to decrease bone pain and improve radiological aspect in fibrous dysplasia of bone.

Read the detailed description

In open pilot studies, it has been suggested that bisphosphonates may alleviate bone pain and help decrease the surface of osteolytic lesion in patients with fibrous dysplasia of bone (FD). So, in this randomized placebo controlled trial, we test the hypothesis that the bisphosphonate risedronate reduces bone pain in patients with FD (study I, one year duration) and decrease osteolytic lesions (study II, three years duration). Patients will take risedronate during 2 months courses, every 6 months or a matching placebo. Dosage will be : 30mg tablet/day for adults and 5mg tablet x 2,4 according to the age and weight of the child. All participants will receive calcium and vitamin D. All patients with renal phosphate wasting will receive an oral phosphate supplement.

Being tested
risedronate, placebo
Keywords
fibrous dysplasia of bone, Mac Cune Albright syndrome, bisphosphonates, risedronate
Medical subject headings
Fibrous Dysplasia of Bone

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • risedronateDrug

    During two months courses, every 6 months : 30mg tablet/day for adults and 10mg/day or 20mg/day for children, according to the age and weight of the child.

  • placeboDrug

    placebo and risedronate have exactly the same aspect. During two months courses, every 6 months : 30mg tablet/day for adults and 10mg/day or 20mg/day for children, according to the age and weight of the child.

  • risedronateDrug

    During two months courses, every 6 months : 30mg tablet/day for adults and 10mg/day or 20mg/day for children, according to the age and weight of the child.

  • placeboDrug

    placebo and risedronate have exactly the same aspect. During two months courses, every 6 months : 30mg tablet/day for adults and 10mg/day or 20mg/day for children, according to the age and weight of the child.

Study groups in NCT00445575
Study groupRoleWhat they receive
1Experimentaltreatment duration: 1 year
Receives: Drug: risedronate
2Placebo comparatortreatment duration: 1 year
Receives: Drug: placebo
3Experimentalduration treatment: 3 years
Receives: Drug: risedronate
4Placebo comparatortreatment duration: 3 years
Receives: Drug: placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Intensity of bone pain, assessed by visual analogical scale ranging from 0 to 10, on the most painful site.

    Measured: one year

  2. Surface of osteolytic lesions at three years. Radiological improvement.

    Measured: Three years

Secondary outcomes (4)
  1. Variation of biochemical markers of bone turnover at three years

    Measured: three years

  2. Number of painful sites

    Measured: one year

  3. Improvement in quality of life

    Measured: one to three years

  4. Variation in bone mineral density of the femoral neck at three years

    Measured: three years

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted9 Mar 2007 (estimated)
  2. Study start22 Jul 2007
  3. Primary completionDec 2017
  4. Study completion7 Dec 2017

Resources

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 2/3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
80 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00445575
Sponsor's protocol ID
RBM 03-54
Other IDs
AFSSAPS 060834
Acronym
PROFIDYS
Status last verified
Aug 2021
First submitted
8 Mar 2007
Last updated
30 Aug 2021
Results posted
No
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

A Phase 2/3 study testing risedronate in people with Fibrous Dysplasia of Bone, run by Institut National de la Santé Et de la Recherche Médicale, France at 8 sites in 4 countries.

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 2 inclusion and 12 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 30 Aug 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 8 sites in France, Germany, Belgium, Netherlands. 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. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this combined phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

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?

Intensity of bone pain, assessed by visual analogical scale ranging from 0 to 10, on the most painful site. (time frame: one year). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 30 Aug 2021.

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